CN112392474A - Well completion production pipe column structure controlled by underground seismic wave pressure and method thereof - Google Patents
Well completion production pipe column structure controlled by underground seismic wave pressure and method thereof Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/001—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells specially adapted for underwater installations
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
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Abstract
The invention relates to a well completion production pipe column structure for controlling the pressure of underground seismic waves, which is characterized by comprising a seismic source well pipe column and a receiving well pipe column; the seismic source well pipe column comprises a first oil well casing, a first production oil pipe, a first underground safety valve, a first production packer, a first Y-shaped joint, a perforating pipe, a centralizer, a hydraulic control sliding sleeve, a blind pipe plug, a first check valve, a first electric submersible pump, a first sieve pipe, a first perforation, a hydraulic controllable seismic source device and a first hydraulic control pipeline; the receiving well string comprises a second oil well casing, a second production oil pipe, a second underground safety valve, a second production packer, a second Y-shaped joint, a second check valve, a second electric submersible pump, a second sieve pipe, a second perforation, a second hydraulic control pipeline and optical fibers. The invention realizes the transmission and the reception of controllable vibration signals by the innovative structural design of the pipe column without using an operation ship or any workover equipment, and has the characteristic of flexibility and mobility.
Description
Technical Field
The invention relates to the technical field of oil and gas exploitation, in particular to a well completion production string structure for controlling underground seismic wave pressure and a method thereof.
Background
A Vertical Seismic Profile (VSP) is an observation method of Seismic waves, which corresponds to a Seismic Profile observed on the ground in general. The VSP technology is applied in the field of oil and gas wells, acoustic data of stratums and oil reservoirs can be obtained, and geological personnel are helped to obtain stratum characteristics, analyze oil reservoir production dynamics and evaluate oil reservoir production conditions due to the transmission characteristic difference of acoustic waves in different stratums and fluid media.
The vertical seismic profile is generally implemented by exciting seismic waves near the surface of the earth or the sea, securing a geophone in an underground oil interval or an interested stratum through logging operation equipment, and receiving information transmitted by the ground seismic waves by the geophone. Most VSPs use surface seismic sources, which are typically vibrators on land or air guns in marine environments. An acoustic geophone is placed in the borehole and a surface source is used to generate the acoustic signal. However, for offshore operations, conventional VSP operations are very complex and costly to operate. Firstly, an operating ship is needed, a marine seismic source is arranged, in addition, a target well is stopped, floating well workover equipment is mobilized, and logging equipment such as a detector and the like is installed underground. The operation is complex, the cost is high and the operation risk is large due to the adoption of large-scale overwater equipment, so that the operation plan of VSP is limited frequently, and the acquisition requirement of geological oil reservoirs on the production dynamic data of oil and gas wells cannot be responded in time.
Disclosure of Invention
In view of the above problems, it is an object of the present invention to provide a downhole seismic wave pressure controlled completion production string structure and method thereof to avoid the complexity and cost of conventional VSP operations. The invention realizes the transmission and the reception of the controllable vibration signals through the innovative structural design of the pipe column without using an operation ship or using any well repairing equipment, has the characteristic of flexibility and mobility, can monitor the VSP of the controllable vibration signals at any time according to the requirements of the oil reservoir to obtain stratum characteristic information, is beneficial to geological oil reservoir personnel to analyze the production dynamics of the oil reservoir in time, evaluate and update the oil reservoir production plan and improve the oil-gas recovery ratio.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention relates to a well completion production pipe column structure for controlling underground seismic wave pressure, which comprises a seismic source well pipe column and a receiving well pipe column; the seismic source well pipe column comprises a first oil well casing, a first production oil pipe, a first underground safety valve, a first production packer, a first Y-shaped joint, a perforating pipe, a centralizer, a hydraulic control sliding sleeve, a blind pipe plug, a first check valve, a first electric submersible pump, a first sieve pipe, a first perforation, a hydraulic controllable seismic source device and a first hydraulic control pipeline; the first production oil pipe is arranged in the first oil well casing, and the upper end of the first production oil pipe is fixed with the upper end of the first oil well casing; the first underground safety valve, the first production packer, the first Y-shaped joint, the perforating pipe, the centralizer and the hydraulic control sliding sleeve are sequentially arranged on the first production oil pipe at intervals from top to bottom; the blind pipe plug is arranged at the lower end of the first production oil pipe; the first production oil pipe penetrates through the first end of the first Y-shaped joint, the second end of the first Y-shaped joint is connected with the first check valve, the lower end of the first check valve is connected with the first electric submersible pump, and the first electric submersible pump is connected with a first cable; the first sieve tube is arranged at the lower part of the first production oil tube, and the hydraulic control sliding sleeve is positioned in the first sieve tube; a plurality of first perforations are arranged on the first oil well casing outside the first sieve tube; the first production packer and the centralizer enclose a section of the first well casing into an enclosed space; the hydraulic controllable seismic source device is arranged above the centralizer and used for generating pressure waves in the closed space; the first hydraulic control pipeline is arranged in the first oil well casing and is respectively connected with the first downhole safety valve and the hydraulic control sliding sleeve; the receiving well pipe column comprises a second oil well casing, a second production oil pipe, a second underground safety valve, a second production packer, a second Y-shaped joint, a second check valve, a second electric submersible pump, a second sieve pipe, a second perforation, a second hydraulic control pipeline and an optical fiber; the second production oil pipe is arranged in the second oil well casing, and the upper end of the second production oil pipe is fixed with the upper end of the second oil well casing; the second downhole safety valve, the second production packer and the second Y-shaped joint are sequentially arranged on the second production oil pipe at intervals from top to bottom; the second production oil pipe penetrates through the first end of the second Y-shaped joint, the second end of the second Y-shaped joint is connected with the second check valve, the lower end of the second check valve is connected with the second electric submersible pump, and the second electric submersible pump is connected with a second cable; the second sieve pipe is arranged at the lower part of the second production oil pipe; a plurality of second perforations are arranged on the second oil well casing outside the second sieve tube; the second hydraulic control pipeline is arranged in the second oil well casing and is connected with the second downhole safety valve; the optical fiber is disposed in the second well casing; the lower end of the optical fiber is connected with the second production oil pipe, and the upper end of the optical fiber is connected with the upper end of the second oil well casing and used for receiving pressure waves generated by the hydraulic controllable seismic source device.
The well completion production string structure preferably comprises a cavity, a spring, a piston, a high-pressure fluid inflow port and a pressure relief check valve, wherein one end of the cavity is connected with the high-pressure fluid inflow port, and the other end of the cavity is connected with the inner wall of the first oil well casing; the piston is arranged in the cavity and is tightly matched with the inner wall of the cavity; one end of the spring is connected with the piston, and the other end of the spring is connected with the inner wall of the first oil well casing; the pressure relief one-way valve is arranged on the side wall of the cavity above the spring and is positioned in the middle of the side wall of the cavity along the length direction.
The well completion production string structure is preferably provided with two groups of hydraulic controlled seismic source devices which are respectively arranged on two sides of the first production oil pipe.
The well completion production string structure preferably further comprises a telescopic joint, wherein the telescopic joint is arranged on the first production oil pipe and is positioned between the perforated pipe and the hydraulic controllable seismic source device.
The well completion production string structure is characterized in that the upper end and the lower end of the first sieve tube are respectively provided with a first packer; and the upper end and the lower end of the second sieve pipe are respectively provided with a second packer.
The well completion production string structure preferably further comprises a cable-passing sealing element, wherein the cable-passing sealing element is arranged on the first production tubing and is positioned between the first packers at the upper ends of the first screen pipes.
The invention relates to a method for controlling the pressure of underground seismic waves based on a well completion production pipe column structure, which comprises the following steps:
1) during normal production, oil gas in a perforated stratum in the seismic source well enters an annular space of a first production oil pipe and a first sieve pipe through a first perforation and the first sieve pipe, enters the first production oil pipe through a hydraulic control sliding sleeve, flows upwards through a perforated pipe to enter an annular area of the first production oil pipe and a first oil well casing pipe, and then flows upwards to the ground through a first underground safety valve along the first production oil pipe through a first electric submersible pump and a first check valve;
2) when VSP operation is required, the first electric submersible pump is suspended through the first cable, the first underground safety valve is closed through the first hydraulic control pipeline, the hydraulic control sliding sleeve is closed, and a closed circulation loop is formed between the interior of a first production oil pipe between the first underground safety valve and the hydraulic control sliding sleeve and the annular space of the first production oil pipe and the first oil well casing;
3) the method comprises the steps that a first electric submersible pump is started through a first cable, fluid of a closed circulation loop circulates, the fluid enters a first production oil pipe through the first electric submersible pump, then downwards enters a first production oil pipe and a first oil well casing annular space through a perforated pipe, and then enters a high-pressure fluid inflow port of a hydraulic controlled seismic source device, the high-pressure fluid pushes a piston of the hydraulic controlled seismic source device to compress a spring, after the piston is pushed to pass through a pressure relief one-way valve of the hydraulic controlled seismic source device by the high-pressure fluid, the pressure relief one-way valve is opened, the pressure is rapidly and instantly released, pressure waves are generated, the pump pressure is regularly adjusted in a mode of repeatedly adjusting the frequency of the first electric submersible pump, the pressure is continuously generated at the pressure relief one-way valve of the hydraulic controlled seismic source device and is rapidly and instantly released, intermittent pressure waves are generated and are;
4) and the optical fiber in the receiving well acquires a pressure wave signal sent by the seismic source well and transmits the signal to the ground.
Due to the adoption of the technical scheme, the invention has the following advantages:
1. the invention can rely on the oil and gas well in production to carry out VSP operation, and does not need to independently drill a well for the VSP operation, thereby reducing the operation cost.
2. The invention does not need to use an operation ship and well repair equipment, is flexible, can carry out VSP operation at any time, and can carry out VSP monitoring on the controllable vibration signal according to the requirement of an oil reservoir at any time to obtain stratum characteristic information.
3. The invention utilizes the underground electric submersible pump and the hydraulic controllable seismic source device of the oil-gas well, and realizes the emission of seismic source signals by carrying out functional innovation design on the well completion pipe column, thereby furthest utilizing conventional production equipment and realizing VSP monitoring.
Drawings
FIG. 1 is a schematic diagram of a seismic source well string according to the present invention;
FIG. 2 is a schematic view of a receiving well string according to the present invention;
FIG. 3 is a schematic diagram of the process of transmitting pressure wave signals from a seismic source well and receiving pressure wave signals from a receiving well optical fiber according to the present invention;
FIG. 4 is an enlarged view of a portion of the seismic source well string structure of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the invention can be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely intended to illustrate the spirit of the technical solution of the present invention.
As shown in fig. 1 and 2, the present invention provides a downhole seismic pressure controlled completion production string structure comprising a seismic source string 100 and a receiving string 200.
The seismic source well string 100 comprises a first oil well casing 1, a first production oil pipe 2, a first downhole safety valve 3, a first production packer 4, a first Y-shaped joint 5, a perforated pipe 6, a centralizer 7, a hydraulic control sliding sleeve 8, a blind pipe plug 9, a first check valve 10, a first electric submersible pump 11, a first screen pipe 12, a first perforation 13, a hydraulic controllable seismic source device 14 and a first hydraulic control pipeline 15.
The first production oil pipe 2 is arranged in the first oil well casing 1, and the first production oil pipe 2 and the first oil well casing 1 are arranged coaxially; the upper end of the first production oil pipe 2 is fixed with the upper end of the first oil well casing 1; the first underground safety valve 3, the first production packer 4, the first Y-shaped joint 5, the perforating pipe 6, the centralizer 7 and the hydraulic control sliding sleeve 8 are sequentially arranged on the first production oil pipe 2 at intervals from top to bottom; the blind pipe plug 9 is arranged at the lower end of the first production oil pipe 2 and used for plugging the lower end of the first production oil pipe 2. The first production oil pipe 2 penetrates through a first end of a first Y-shaped joint 5, a second end of the first Y-shaped joint 5 is connected with a first check valve 10, the lower end of the first check valve 10 is connected with a first electric submersible pump 11, and the first electric submersible pump 11 is connected with a first cable 16; the first cable 16 is used for controlling the start and stop of the first electric submersible pump 11 and transmitting a ground command to adjust the rotating speed of the first electric submersible pump 11. The first sieve tube 12 is arranged at the lower part of the first production oil pipe 2, and the hydraulic control sliding sleeve 8 is positioned in the first sieve tube 12; a plurality of first perforation holes 13 are arranged on the first oil well casing 1 outside the first sieve tube 12; the first production packer 4 and the centralizer 7 enclose one of the sections of the first well casing 1 into a closed space; the hydraulic vibroseis device 14 is arranged above the centralizer 7 and is used for generating pressure waves in the closed space; the first hydraulic control pipeline 15 is arranged in the first oil well casing 1, and the upper part and the lower part of the first hydraulic control pipeline are respectively connected with the first underground safety valve 3 and the hydraulic control sliding sleeve 8; the first pilot line 15 is used to close the first downhole safety valve 3 and the pilot operated sliding sleeve 8.
It should be noted that, when the seismic source well is in normal production, the first downhole safety valve 3 is opened, the hydraulic control sliding sleeve 8 is opened, the stratum is communicated to the ground through the seismic source well pipe 100, and the first electric submersible pump 11 is in normal operation to lift the oil-gas fluid in the first oil well casing 1 to the ground; when VSP operation is carried out, the first underground safety valve 3 is closed, the hydraulic control sliding sleeve 8 is closed to form a closed internal circulation space, the first electric submersible pump 11 operates at different rotating speeds to push fluid in a shaft, and the hydraulic controlled seismic source device 14 is pushed at different pressures and flow rates to generate pressure waves under the conditions of regularity and different pressures.
Meanwhile, when VSP operation is carried out, a closed internal circulation space is formed in the first oil well casing 1, and regular pressure waves are generated by circulating fluid in the closed internal circulation space established by the structure of the seismic source well pipe column 100. Fig. 4 is a partial view of the closed space. When VSP operation is needed, the first underground safety valve 3 at the upper part and the hydraulic control sliding sleeve 8 at the bottom part are closed through the first hydraulic pipeline 15, so that a sealed internal circulation space is formed between the first production packer 4 and the centralizer 7, and an annular area between the inside of the first production oil pipe 2 and the first well casing 1 is communicated through the perforating pipe 6. After the first electric submersible pump 11 is started, the fluid circulation channel of the closed space: the annulus between the first production tubing 2 and the first well casing 1 → the first electric submersible pump 11 → the first check valve 10 → the first Y-joint 5 → inside the first production tubing 2 → the perforated pipe 6 → the annulus between the first production tubing 2 and the first well casing 1 → the first electric submersible pump 11 → … …, and so on.
In addition, the centralizer 7 is used for preventing the pressure wave generated by the hydraulic vibroseis device 14 from causing the first production oil pipe 2 to move axially; on the other hand, the packer plays a role of sealing and forms a closed space together with the first production packer 4.
Wherein the receiving well string 200 comprises a second well casing 17, a second production tubing 18, a second downhole safety valve 19, a second production packer 20, a second Y-joint 21, a second check valve 22, a second electrical submersible pump 23, a second screen 24, a second perforation 25, a second hydraulic line 26 and an optical fiber 27.
A second production tubing 18 is arranged in the second well casing 17, and the second production tubing 18 is arranged concentrically with the second well casing 17; the upper end of the second production tubing 18 is fixed with the upper end of the second well casing 17; a second downhole safety valve 19, a second production packer 20 and a second Y-shaped joint 21 are sequentially arranged on the second production oil pipe 18 at intervals from top to bottom; the second production oil pipe 18 passes through the first end of the second Y-shaped joint 21, the second end of the second Y-shaped joint 21 is connected with a second check valve 22, the lower end of the second check valve 22 is connected with a second electric submersible pump 23, and the second electric submersible pump 23 is connected with a second cable 28; the second cable 28 is used for controlling the start and stop of the second electric submersible pump 23 and transmitting a ground command to adjust the rotating speed of the second electric submersible pump 23. Second screen 24 is disposed in a lower portion of second production tubing 18; a plurality of second perforation holes 25 are arranged on the second oil well casing 17 outside the second sieve tube 24; a second pilot line 26 is disposed in the second well casing 17 and connected to the second downhole safety valve 19; the second pilot line 26 is used to close the second downhole safety valve 19. An optical fiber 27 is disposed in the second well casing 17; the optical fiber 27 is connected at its lower end to the second production tubing 18 and at its upper end to the upper end of the second well casing 17 for receiving pressure waves generated by the hydraulic vibroseis device 14. The process in which the seismic source well transmits pressure wave signals and the receiving well optical fibers receive pressure wave signals is shown in fig. 3.
It should be noted that, during normal production of the receiving well, the second electric submersible pump 23 is operated normally to lift the hydrocarbon fluid in the second well casing 17 to the surface; when the VSP operation is performed, the second downhole safety valve 19 is closed by the second pilot line 26, and the second submersible pump 23 is stopped, and at this time, the pressure wave generated in the seismic source well is received through the optical fiber 27.
In the above embodiment, preferably, as shown in fig. 4, the hydraulic vibroseis device 14 includes a cavity 141, a spring 142, a piston 143, a high-pressure fluid inlet 144 and a pressure relief check valve 145, wherein one end of the cavity 141 is connected to the high-pressure fluid inlet 144, and the other end is connected to the inner wall of the first casing 1; the piston 143 is arranged in the cavity 141 and is tightly matched with the inner wall of the cavity 141; one end of the spring 142 is connected to the piston 143 and the other end is connected to the inner wall of the first well casing 1; the pressure relief check valve 145 is disposed on a sidewall of the cavity 141 above the spring 142, and is located at a middle portion of the sidewall of the cavity 141 along a length direction. Therefore, under the pushing and excitation of high-pressure fluid in the well bore, the energy is stored through the spring 142, and is suddenly released after reaching a certain pressure degree, pressure waves are generated in the closed space and are transmitted outwards along the stratum; the hydraulic controlled seismic source device 14 is installed in the closed space, the rotating speed of the first electric submersible pump 11 is increased through control and adjustment on the ground along with the starting of the first electric submersible pump 11, the pressure of fluid in the closed space is increased, the fluid pressure is transmitted to the hydraulic controlled seismic source device 14 through a high-pressure fluid inflow port 144 of the hydraulic controlled seismic source device 14, when the pressure reaches a preset value, a pressure relief one-way valve 145 of the hydraulic controlled seismic source device 14 releases pressure instantaneously, and instantaneous pressure waves are generated in a shaft.
In the above embodiment, preferably, two sets of hydraulic vibroseis devices 14 are arranged on two sides of the first production pipe 2. The two groups of hydraulic controllable seismic source devices generate pressure waves more quickly.
In the above embodiment, the seismic source well string 100 preferably further comprises a telescopic joint 29, the telescopic joint 29 being disposed on the first production tubing 2 between the perforated pipe 6 and the hydraulic vibroseis device 14. The telescopic joint 29 is a sealing structure of the inner and outer barrels, which can allow axial sliding without affecting the sealing between the inner and outer barrels, and functions to mainly prevent the axial vibration and even buckling of the first production tubing 2 caused by the pressure fluctuation generated by the hydraulic vibroseis device 14.
In the above embodiment, it is preferable that the upper and lower ends of the first screen 12 are respectively provided with the first packers 30; the upper and lower ends of the second screen 24 are provided with second packers 31, respectively. The first packer 30 and the second packer 31 each function as a seal.
In the above embodiment, the seismic source well string 100 preferably further comprises a wireline pass-through seal 32, the wireline pass-through seal 32 being disposed on the first production tubing 2 between the first packers 30 at the upper end of the first screen 12. The cable transit seal 32 also serves a sealing function.
Based on the well completion production string structure provided by the embodiment, the invention also provides a method for controlling the pressure of the underground seismic waves, which comprises the following steps:
the method comprises the following steps: during normal production, oil gas in a perforated stratum in the seismic source well enters annular spaces of the first production oil pipe 2 and the first sieve pipe 12 through the first perforation 13 and the first sieve pipe 12, enters the first production oil pipe 2 through the hydraulic control sliding sleeve 8, flows upwards to enter an annular area of the first production oil pipe 2 and the first oil well casing pipe 1 through the perforated pipe 6, then flows through the first electric submersible pump 11 and the first check valve 10, and flows upwards to the ground through the first downhole safety valve 3 along the first production oil pipe 2.
Step two: when VSP operation is needed, the first electric submersible pump 11 is suspended through the first cable 16, the first downhole safety valve 3 is closed through the first hydraulic control pipeline 15, the hydraulic control sliding sleeve 8 is closed, and a closed circulation loop is formed between the inner part of the first production oil pipe 2 between the first downhole safety valve 3 and the hydraulic control sliding sleeve 8 and the annular space between the first production oil pipe 2 and the first oil well casing 1.
Step three: the first electric submersible pump 11 is started through the first cable 16, fluid in a closed circulation loop circulates, the fluid enters the first production oil pipe 2 through the first electric submersible pump 11, then enters the annular space between the first production oil pipe 2 and the first oil well casing 1 through the perforated pipe 6 and then enters the high-pressure fluid inflow port 144 of the hydraulic controllable seismic source device 14, the high-pressure fluid pushes the piston 143 of the hydraulic controllable seismic source device 14 to compress the spring 142, after the position of the piston 143 is pushed by the high-pressure fluid to pass through the position of the pressure relief one-way valve 145 of the hydraulic controllable seismic source device 14, the pressure relief one-way valve 145 is opened, the pressure is rapidly and instantly released, pressure waves are generated, the pumping pressure is regularly adjusted in a mode of repeatedly adjusting the frequency of the first electric submersible pump 11, the pressure is constantly generated at the pressure relief one-way valve 145 of the hydraulic controllable seismic source device 14 and is rapidly and instantly released, and intermittent pressure waves, and is transmitted to the outside.
Step four: an optical fiber 27 in the receiving well captures the pressure wave signal from the seismic source well and transmits the signal to the surface.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A well completion production pipe column structure controlled by underground seismic wave pressure is characterized by comprising a seismic source well pipe column and a receiving well pipe column;
the seismic source well pipe column comprises a first oil well casing, a first production oil pipe, a first underground safety valve, a first production packer, a first Y-shaped joint, a perforating pipe, a centralizer, a hydraulic control sliding sleeve, a blind pipe plug, a first check valve, a first electric submersible pump, a first sieve pipe, a first perforation, a hydraulic controllable seismic source device and a first hydraulic control pipeline;
the first production oil pipe is arranged in the first oil well casing, and the upper end of the first production oil pipe is fixed with the upper end of the first oil well casing; the first underground safety valve, the first production packer, the first Y-shaped joint, the perforating pipe, the centralizer and the hydraulic control sliding sleeve are sequentially arranged on the first production oil pipe at intervals from top to bottom; the blind pipe plug is arranged at the lower end of the first production oil pipe; the first production oil pipe penetrates through the first end of the first Y-shaped joint, the second end of the first Y-shaped joint is connected with the first check valve, the lower end of the first check valve is connected with the first electric submersible pump, and the first electric submersible pump is connected with a first cable; the first sieve tube is arranged at the lower part of the first production oil tube, and the hydraulic control sliding sleeve is positioned in the first sieve tube; a plurality of first perforations are arranged on the first oil well casing outside the first sieve tube; the first production packer and the centralizer enclose a section of the first well casing into an enclosed space; the hydraulic controllable seismic source device is arranged above the centralizer and used for generating pressure waves in the closed space; the first hydraulic control pipeline is arranged in the first oil well casing and is respectively connected with the first downhole safety valve and the hydraulic control sliding sleeve;
the receiving well pipe column comprises a second oil well casing, a second production oil pipe, a second underground safety valve, a second production packer, a second Y-shaped joint, a second check valve, a second electric submersible pump, a second sieve pipe, a second perforation, a second hydraulic control pipeline and an optical fiber;
the second production oil pipe is arranged in the second oil well casing, and the upper end of the second production oil pipe is fixed with the upper end of the second oil well casing; the second downhole safety valve, the second production packer and the second Y-shaped joint are sequentially arranged on the second production oil pipe at intervals from top to bottom; the second production oil pipe penetrates through the first end of the second Y-shaped joint, the second end of the second Y-shaped joint is connected with the second check valve, the lower end of the second check valve is connected with the second electric submersible pump, and the second electric submersible pump is connected with a second cable; the second sieve pipe is arranged at the lower part of the second production oil pipe; a plurality of second perforations are arranged on the second oil well casing outside the second sieve tube; the second hydraulic control pipeline is arranged in the second oil well casing and is connected with the second downhole safety valve; the optical fiber is disposed in the second well casing; the lower end of the optical fiber is connected with the second production oil pipe, and the upper end of the optical fiber is connected with the upper end of the second oil well casing and used for receiving pressure waves generated by the hydraulic controllable seismic source device.
2. A completion production string structure according to claim 1, wherein the hydraulic vibroseis device comprises a cavity, a spring, a piston, a high-pressure fluid inflow port and a pressure relief check valve, the cavity being connected at one end to the high-pressure fluid inflow port and at the other end to the inner wall of the first well casing; the piston is arranged in the cavity and is tightly matched with the inner wall of the cavity; one end of the spring is connected with the piston, and the other end of the spring is connected with the inner wall of the first oil well casing; the pressure relief one-way valve is arranged on the side wall of the cavity above the spring and is positioned in the middle of the side wall of the cavity along the length direction.
3. A completion production string structure according to claim 1, wherein said hydraulic vibroseis devices are provided in two groups, one on each side of said first production tubing.
4. A completion production string arrangement according to claim 1, wherein the seismic string further comprises a telescopic joint arranged on the first production tubing between the perforated pipe and the hydraulic vibroseis device.
5. A completion production string structure according to claim 1, wherein the upper and lower ends of the first screen are provided with a first packer, respectively; and the upper end and the lower end of the second sieve pipe are respectively provided with a second packer.
6. A completion production string structure according to claim 5, wherein said seismic tubing string further comprises a wireline pass-through seal disposed on said first production tubing between said first packer at an upper end of said first screen.
7. A method of downhole seismic wave pressure control based on a completion string structure according to any of claims 1 to 6, comprising the steps of:
1) during normal production, oil gas in a perforated stratum in the seismic source well enters an annular space of a first production oil pipe and a first sieve pipe through a first perforation and the first sieve pipe, enters the first production oil pipe through a hydraulic control sliding sleeve, flows upwards through a perforated pipe to enter an annular area of the first production oil pipe and a first oil well casing pipe, and then flows upwards to the ground through a first underground safety valve along the first production oil pipe through a first electric submersible pump and a first check valve;
2) when VSP operation is required, the first electric submersible pump is suspended through the first cable, the first underground safety valve is closed through the first hydraulic control pipeline, the hydraulic control sliding sleeve is closed, and a closed circulation loop is formed between the interior of a first production oil pipe between the first underground safety valve and the hydraulic control sliding sleeve and the annular space of the first production oil pipe and the first oil well casing;
3) the method comprises the steps that a first electric submersible pump is started through a first cable, fluid of a closed circulation loop circulates, the fluid enters a first production oil pipe through the first electric submersible pump, then downwards enters a first production oil pipe and a first oil well casing annular space through a perforated pipe, and then enters a high-pressure fluid inflow port of a hydraulic controlled seismic source device, the high-pressure fluid pushes a piston of the hydraulic controlled seismic source device to compress a spring, after the piston is pushed to pass through a pressure relief one-way valve of the hydraulic controlled seismic source device by the high-pressure fluid, the pressure relief one-way valve is opened, the pressure is rapidly and instantly released, pressure waves are generated, the pump pressure is regularly adjusted in a mode of repeatedly adjusting the frequency of the first electric submersible pump, the pressure is continuously generated at the pressure relief one-way valve of the hydraulic controlled seismic source device and is rapidly and instantly released, intermittent pressure waves are generated and are;
4) and the optical fiber in the receiving well acquires a pressure wave signal sent by the seismic source well and transmits the signal to the ground.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116906011A (en) * | 2023-08-17 | 2023-10-20 | 上海瑞达峰致能源科技股份有限公司 | Underground screen pipe with self-cleaning function |
| CN116971756A (en) * | 2023-07-21 | 2023-10-31 | 中海石油(中国)有限公司上海分公司 | Electric pump fracturing production integrated tubular column and implementation method thereof |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1010788A (en) * | 1962-06-25 | 1965-11-24 | Gen Dynamics Corp | Improved geophysical prospecting method and apparatus |
| US6268911B1 (en) * | 1997-05-02 | 2001-07-31 | Baker Hughes Incorporated | Monitoring of downhole parameters and tools utilizing fiber optics |
| US6478107B1 (en) * | 2000-05-04 | 2002-11-12 | Halliburton Energy Services, Inc. | Axially extended downhole seismic source |
| US20050263340A1 (en) * | 2004-05-25 | 2005-12-01 | Gamal Shehab | Array seismic fluid transducer source |
| US20060247861A1 (en) * | 2005-04-29 | 2006-11-02 | Baker Hughes Incorporated | Seismic analysis using electrical submersible pump |
| WO2007036721A2 (en) * | 2005-09-29 | 2007-04-05 | Read Well Services Limited | Apparatus and method for generating a seismic signal for use in downhole surveying |
| US20070272406A1 (en) * | 2006-05-24 | 2007-11-29 | Baker Hughes Incorporated | System, method, and apparatus for downhole submersible pump having fiber optic communications |
| US20090034368A1 (en) * | 2007-08-02 | 2009-02-05 | Baker Hughes Incorporated | Apparatus and method for communicating data between a well and the surface using pressure pulses |
| WO2009101125A1 (en) * | 2008-02-15 | 2009-08-20 | Shell Internationale Research Maatschappij B.V. | Method of producing hydrocarbons through a smart well |
| WO2011109014A1 (en) * | 2010-03-02 | 2011-09-09 | David John Kusko | Borehole flow modulator and inverted seismic source generating system |
| RU2492323C1 (en) * | 2012-04-09 | 2013-09-10 | Анатолий Георгиевич Малюга | Method to investigate beds in process of oil and gas wells drilling and sampler for its realisation |
| CN207609410U (en) * | 2017-12-21 | 2018-07-13 | 中海油能源发展股份有限公司 | A kind of compound wax control process pipe string of acoustic wave chemical |
| CN111379538A (en) * | 2020-03-18 | 2020-07-07 | 中国海洋石油集团有限公司 | Method for verifying opening degree of underground hydraulic control sliding sleeve suitable for intelligent well completion |
-
2020
- 2020-11-18 CN CN202011294592.4A patent/CN112392474B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1010788A (en) * | 1962-06-25 | 1965-11-24 | Gen Dynamics Corp | Improved geophysical prospecting method and apparatus |
| US6268911B1 (en) * | 1997-05-02 | 2001-07-31 | Baker Hughes Incorporated | Monitoring of downhole parameters and tools utilizing fiber optics |
| US6478107B1 (en) * | 2000-05-04 | 2002-11-12 | Halliburton Energy Services, Inc. | Axially extended downhole seismic source |
| US20050263340A1 (en) * | 2004-05-25 | 2005-12-01 | Gamal Shehab | Array seismic fluid transducer source |
| US20060247861A1 (en) * | 2005-04-29 | 2006-11-02 | Baker Hughes Incorporated | Seismic analysis using electrical submersible pump |
| WO2007036721A2 (en) * | 2005-09-29 | 2007-04-05 | Read Well Services Limited | Apparatus and method for generating a seismic signal for use in downhole surveying |
| US20070272406A1 (en) * | 2006-05-24 | 2007-11-29 | Baker Hughes Incorporated | System, method, and apparatus for downhole submersible pump having fiber optic communications |
| US20090034368A1 (en) * | 2007-08-02 | 2009-02-05 | Baker Hughes Incorporated | Apparatus and method for communicating data between a well and the surface using pressure pulses |
| WO2009101125A1 (en) * | 2008-02-15 | 2009-08-20 | Shell Internationale Research Maatschappij B.V. | Method of producing hydrocarbons through a smart well |
| WO2011109014A1 (en) * | 2010-03-02 | 2011-09-09 | David John Kusko | Borehole flow modulator and inverted seismic source generating system |
| RU2492323C1 (en) * | 2012-04-09 | 2013-09-10 | Анатолий Георгиевич Малюга | Method to investigate beds in process of oil and gas wells drilling and sampler for its realisation |
| CN207609410U (en) * | 2017-12-21 | 2018-07-13 | 中海油能源发展股份有限公司 | A kind of compound wax control process pipe string of acoustic wave chemical |
| CN111379538A (en) * | 2020-03-18 | 2020-07-07 | 中国海洋石油集团有限公司 | Method for verifying opening degree of underground hydraulic control sliding sleeve suitable for intelligent well completion |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116971756A (en) * | 2023-07-21 | 2023-10-31 | 中海石油(中国)有限公司上海分公司 | Electric pump fracturing production integrated tubular column and implementation method thereof |
| CN116906011A (en) * | 2023-08-17 | 2023-10-20 | 上海瑞达峰致能源科技股份有限公司 | Underground screen pipe with self-cleaning function |
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| Publication number | Publication date |
|---|---|
| CN112392474B (en) | 2023-10-17 |
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