WO2010041292A1 - Oil field regeneration method and device - Google Patents

Abstract

Recollection of crude oil is carried out efficiently by a simple device using a winze which is left unattended as an exhausted oil field or an existing winze the volume of production of which is deteriorated. The oil field regeneration method for recollecting crude oil by utilizing an existing winze, characterized by comprising a step for hanging a flame jet burner down into a winze by means of a pair of suspension ropes and one pushing material, a step for forming a lateral hole by firing the flame jet burner after it has reached a target depth and then propelling the flame jet burner while changing the direction circumferential sideways by adjusting the suspension rope and the pushing material while jetting a high-temperature, high-speed flame jet, and a step for forming a layer of crude oil when crude oil, separated from the sand and bedrock by the heat produced when the lateral hole is formed by the high-temperature, high-speed flame jet to be made high in fluidity, flows into the lateral hole.

Description

Oil field regeneration method and apparatus

The present invention relates to an oil field regeneration method and apparatus that enables re-collecting of crude oil using a simple apparatus using an existing well.

Fig. 1 is a cross-sectional view schematically showing an oil field. The oil field has an oil layer B formed in a complicated shape like a limestone cave in a layer of hard rock A, and the rock A is excavated from the ground to the oil layer B. The well C is formed, and when the well C reaches the oil layer B and the presence of the oil layer B is confirmed, the well C is used to collect crude oil. Some of the oil layers B are formed with a crude oil layer, and some oils, sand, and rocks are mixed, such as an oil sand layer. In conventional oil fields, many wells with relatively shallow depth have been drilled due to technical and economic problems, but in recent years there has also been progress in drilling technology, for example very deep depths of several thousand meters or more. Wells are also being drilled.

Primary to tertiary collection methods are known as methods for collecting crude oil from the oil field. There are two types of primary sampling methods: self-injection sampling, which utilizes the expulsion of crude oil by the pressure of the oil reservoir in the oil field, and artificial sampling, which pumps crude oil with a pump. According to this primary sampling method, it is said that 20-30% of the crude oil present in the oil field can be recovered.

The water pressure injection method is known as the secondary sampling method. The water injection method is intended to increase oil production by recovering the oil reservoir pressure by injecting water into the oil field after the production volume declines due to the primary sampling method. When the oily sand is removed, the collection is finished. According to the secondary sampling method, it is said that the recovery rate of crude oil in the oil field can be increased to 30-40%.

The third sampling method is applied after the second sampling method. The chemical attack method is a method that decomposes and recovers oil into methane gas by bacteria, the heat attack method using steam (superheated steam), carbon dioxide gas. The gas pressure injection method using is known. According to this tertiary sampling method, the recovery rate is said to be higher than that of the secondary sampling method.

However, as described above, in the method using bacteria, there is a problem that not only methane gas but also unnecessary gas is generated due to decomposition in spite of difficult management and supply of bacteria. There are problems that cannot be raised. In addition, in the heat attack method in which steam is heated by passing it through an oil field, the steam is cooled before the water vapor generated on the ground is led to the oil field in the ground, and therefore, it is extremely difficult until the oil field is heated to the target temperature. There is a problem that a long period of time is required. Also, in the gas pressure injection method using carbon dioxide gas, it is necessary to continue to supply a large amount of carbon dioxide gas until the oil field pressure increases, so a large gas supply device is required and the inside of the oil field is required by carbon dioxide gas. There is a problem that it takes a very long period to increase the pressure.

Patent Document 1 discloses an oil collection method from an oil field in which pressurized carbon dioxide gas is injected from an injection well into an oil field, and an oil component dissolved in the carbon dioxide gas is extracted along with the carbon dioxide gas.
JP-A-8-158774

As described above, when the third sampling method is to be implemented, a large facility is required, the recovery rate of the crude oil cannot be effectively increased, or a long period of time is required until the crude oil can be collected. For this reason, there are few oil fields that actually collect crude oil using the above-mentioned third sampling method. Normally, wells are closed when the second sampling method is finished. It is generally left as a depleted oil field, and new wells are generally excavated.

Therefore, it is known that only 30 to 40% of crude oil is collected even in the secondary oil sampling method in ordinary oil fields, and 60 to 70% of uncollected crude oil still exists. However, it is currently left unattended.

The present invention has been made in view of the above circumstances, and it is efficient to re-collect crude oil by a simple device using existing wells such as wells left as depleted oil fields or wells with reduced production volumes. It is an object of the present invention to provide an oil field regeneration method and apparatus that can be performed well.

The present invention is an oil field reclamation method for re-collecting crude oil using an existing well, wherein a frame jet burner is suspended from the well by a pair of suspension ropes and a pressing member. When,
After the flame jet burner has reached the target depth, the flame jet burner is burned to inject a high-temperature, high-speed flame jet, and the suspension rope and pressing material are adjusted to move the flame jet burner to the side of the well in the circumferential direction. Forming a lateral hole by changing the direction and propelling, and
A step in which crude oil separated from sand and bedrock by heat at the time of forming a horizontal hole by a high-temperature and high-speed flame jet flows into the horizontal hole to form a crude oil layer,
It is characterized by including.

In the oil field reclamation method, it is preferable to form a plurality of lateral holes by performing the operation of changing the direction of the frame jet burner in the circumferential direction side of the well in a plurality of different directions.

Further, in the oil field regeneration method, by injecting the cooling water after cooling the flame jet burner onto the flame jet ejected from the flame jet burner, the periphery of the lateral hole can be heated by the generated steam, It becomes possible to control the temperature of the flame jet by injecting cooling water onto the flame jet.

Moreover, in the oil field regeneration method, the crude oil layer formed in the lateral hole can be recovered from the well to the outside by a sampling method using a hydraulic injection method.

The present invention is an oil field regeneration device for re-collecting crude oil using an existing well,
A frame equipped with an operation device including at least a fuel nozzle and a fuel supply hose, an air nozzle and an air supply hose, an ignition device, an electric wire, and a cooling water supply hose, and injecting a frame jet from the tip injection nozzle With a jet burner,
The frame jet burner is suspended in a well using a pair of suspension ropes and a pushing member, and the frame jet burner is propelled by changing the direction to the circumferential direction side of the well by the hanging ropes and the pushing member. A direction-changing device,
It is characterized by having.

In the oil field regeneration device, the direction changing device includes a winding device capable of winding and unwinding the pair of suspension ropes simultaneously or separately, and a pushing device capable of applying a pushing force to the pressing member. It is preferable.

Moreover, in the oil field regeneration device, it is preferable that the frame jet burner is provided with a plurality of injection nozzles at the tip.

Moreover, in the oil field regeneration device, it is preferable that the frame jet burner has a water injection port for injecting cooling water after burner cooling toward the frame jet injected from the injection nozzle.

Further, in the oil field regenerating apparatus, the flame jet burner has an optical sensor for detecting a combustion flame, and an electromagnetic valve for shutting off the supply of air from the air nozzle when the optical sensor detects the disappearance of the combustion flame. It is preferable.

According to the oil field regeneration method and apparatus of the present invention, a frame jet burner is suspended by a pair of suspension ropes and a push member and inserted into a well, and after the frame jet burner reaches a target depth, A horizontal hole is formed by burning the jet burner and injecting a high-temperature, high-speed flame jet while adjusting the suspension rope and pressing material and propelling the flame jet burner in the circumferential direction of the well. As a result, the crude oil separated from the sand and the bedrock and having improved fluidity flows from the periphery of the lateral hole heated by the high-temperature and high-speed flame jet into the lateral hole to form a crude oil layer. The crude oil in this crude oil layer can be easily recovered by a sampling method such as a water injection method.

The horizontal hole is formed by the high-speed, high-speed flame jet generated by the flame jet burner and at the same time the vicinity of the horizontal hole is heated, so the oil field directly in the ground compared to the case where the oil field is heated by introducing water vapor from the outside. Since it can heat, very effective heating is attained.

Furthermore, since the cooling water after burner cooling is jetted by the water jet port toward the flame jet jetted from the jet nozzle, the cooling water jetted from the water jet port is instantaneously generated by a high-temperature and high-speed flame jet. When the steam acts on the periphery of the lateral hole, the action of the crude oil flowing out from the periphery of the lateral hole to the lateral hole can be promoted, and the temperature of the flame jet can be increased by injecting cooling water into the flame jet. Can be controlled.

In addition, horizontal holes are formed by the flame jet burner, which greatly increases the possibility of the horizontal holes communicating with a new crude oil layer that was not in communication with existing wells. There is a possibility of greatly increasing the amount of crude oil that can be collected.

It is sectional drawing which showed the oil field roughly. It is a partial cutaway side view of the flame jet burner used for the present invention. It is a side view which shows the outline of the oil-field reproduction | regeneration apparatus containing the apparatus which suspends the flame jet burner of FIG. 2 from a ground to a well. It is a partially cut side view which shows the example provided with the several injection nozzle in the circumferential direction of the lower end of a flame jet burner. It is a cutting side view for explaining the state where a frame jet burner is propelled toward the peripheral side of a well by the pushing force of the pushing material. It is a cutting side view showing the state where a plurality of transverse holes were formed by the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Flame jet burner 4 Fuel nozzle 4a Fuel supply hose 5 Air nozzle 5a Air supply hose 6 Ignition device 7a, 7b Injection nozzle 8 Flame jet 11a Cooling water supply hose 12 Water injection port 13 Optical sensor 14 Electromagnetic valve 16a, 16b Hanging rope 18 Pushing material 19a, 19b Winding device 21 Pushing device 29 Electric wire 30 Direction changing device 31 Lateral hole A Rock bed C Existing well F F Pushing force X Circumferential side

Embodiments of the present invention will be described below with reference to the accompanying drawings.
2 and 3 show an embodiment of the present invention. FIG. 2 is a partially cut side view of the frame jet burner used in the present invention. FIG. 3 shows the frame jet burner of FIG. It is a side view which shows the outline of the oil field reproduction | regeneration apparatus containing the apparatus to hang down.

A frame jet burner 1 shown in FIG. 2 is configured to perform drilling, cutting, crushing, crushing, thermal decomposition, etc. by injecting a high-temperature / high-speed flame jet 8 (shock wave). A combustion chamber 3 is formed at the center of the shaft 1 by an inner cylinder 2, and a fuel nozzle 4 for injecting fuel such as kerosene (kerosene), propane gas, natural gas, etc. to one end (upper end) of the combustion chamber 3; An air nozzle 5 for injecting air and an ignition device 6 such as an igniter are provided for high-temperature combustion. The fuel nozzle 4 for burning liquid fuel is provided with an injector (not shown), and air supplied from the air nozzle 5 is injected into the combustion chamber 3 through a swirler (not shown). In this way, mixing with fuel is promoted. The high-temperature expansion gas generated in the combustion chamber 3 is injected from an injection nozzle 7 provided at the other end (lower end) to form a frame jet 8. In the flame jet burner 1, by increasing the combustion pressure in the combustion chamber 3, a high-temperature and high-speed flame jet 8 having a combustion temperature of 1500 ° C. or higher and a speed of Mach 1 or higher is injected. Yes. The frame jet burner as described above is described in “Introduction to Frame Jet Engineering” by Shohei Shimada, Sangyo Tosho Co., Ltd. (published first on April 3, 1995).

Outside the inner cylinder 2 forming the combustion chamber 3, an outer cylinder 10 is provided which forms a cooling chamber 9 with a predetermined interval. The frame jet burner 1 is cooled to the cooling chamber 9 at the upper end. A cooling water supply nozzle 11 for supplying water is provided.

Further, the cooling water after cooling the frame jet burner 1 through the cooling chamber 9 is sprayed to the lower end portion of the frame jet burner 1 shown in FIG. The water injection port 12 is provided, and the water injection port 12 is provided with an electromagnetic valve 12a for controlling the injection of the cooling water.

An optical sensor 13 for detecting the combustion flame in the combustion chamber 3 is provided at the upper end of the flame jet burner 1, and when the disappearance of the combustion flame is detected by the optical sensor 13, the air nozzle 5 An electromagnetic valve 14 is provided so as to shut off the supply of air. In FIG. 2, 15 is a thermometer for detecting the temperature of the flame jet burner 1.

2 shows a case where one injection nozzle 7 is provided at the lower end of the frame jet burner 1, but as shown in FIG. 4, a plurality of injection nozzles are provided in the circumferential direction at the lower end of the frame jet burner 1. 7a and 7b may be provided. Also in the case of FIG. 4, the water injection port 12 is provided so that the cooling water in the cooling chamber 9 is injected toward the frame jet 8 injected from the injection nozzles 7 a and 7 b. An electromagnetic valve 12a for controlling the injection of the cooling water is provided.

A pair of suspension ropes 16a and 16b having sufficient tensile strength to suspend the frame jet burner 1 are connected to both end positions in the diametrical direction at the upper end of the frame jet burner 1. An inverted V-shaped hanging bracket 17 is fixed to the upper end of the burner 1, and the uppermost part of the hanging bracket 17 (on the central axis of the frame jet burner 1) has a required rigidity made of a spring steel material or a twisted cable. The provided pressing member 18 is fixed.

As shown in FIG. 3, the pair of suspension ropes 16a and 16b are respectively wound on winding devices 19a and 19b provided on the ground, and can be wound or unwound simultaneously or separately. Thereby, the apparatus for suspending the said flame jet burner 1 from the ground to the well C is comprised.

Further, the pressing member 18 is wound around the winding device 20, and further, a pressing force that applies a pressing force for pressing the pressing member 18 into the well C is provided in the vicinity of the pressing member 18. A device 21 is provided. The pushing device 21 shown in FIG. 3 presses the pressing member 18 against the fixed-side roller 23a by a fixed-side roller 23a driven by a drive motor 22 and a pressurizing device 24 including a cylinder with a built-in spring. It is comprised with the roller 23b of the moving side.

In FIG. 3, a hose reel 25 is provided on the ground so that a base end is connected to a fuel supply device (not shown) on the ground and a tip is connected to the fuel nozzle 4, and a base end 26 is on the ground. A hose reel provided on the ground so as to unwind an air supply hose 5a connected to an air supply device (not shown) on the ground and having a distal end connected to the air nozzle 5, and 27 is a cooling water supply device (not shown) on the ground. A hose reel provided on the ground so as to unwind the cooling water supply hose 11a connected at the tip to the cooling water supply nozzle 11, and 28 is grounded so as to unwind the electric wires 29 for sending power, signals, etc. It is an electric wire reel prepared for. The fuel supply hose 4a, the air supply hose 5a, the cooling water supply hose 11a, and the electric wire 29 are made of a material having both heat resistance and strength, such as a metal hose, a glass fiber hose, and a ceramic fiber hose, or the like. It is preferable that it is protected by a reinforcing material.

The frame jet burner 1 is suspended to a predetermined depth of the existing well C by unwinding the suspension ropes 16a and 16b by the winding devices 19a and 19b and unwinding the pressing member 18 by the winding device 20. At the same time, the fuel supply hose 4a, the air supply hose 5a, and the cooling water supply hose 11a are unwound by the hose reels 25, 26, and 27, and the electric wire 29 is unwound by the wire reel 28. I am doing so.

After the frame jet burner 1 is suspended to a predetermined depth in the well C, the frame jet burner 1 is operated to inject the frame jet 8 and, for example, the unwinding of the winding device 19a is stopped and the winding is performed. By unwinding only the take-up device 19b, the pushing device 21 is operated to push the pushing member 18 into the well C in a state where the weight of the frame jet burner 1 is supported only by the suspension rope 16a. As shown in FIG. 4, the frame jet burner 1 is propelled by changing the direction to the circumferential side X of the well C with the lower end of the suspension rope 16a as a fulcrum 16a 'by the pushing force F of the pushing member 18. ing. Therefore, the winding devices 19a and 19b and the pushing device 21 constitute a direction changing device 30 for changing the propulsion direction of the frame jet burner 1.

Next, the operation of the embodiment shown in the above figure will be described.

In order to carry out the present invention, as shown in FIG. 3, the frame jet burner is applied to the upper part of an existing well C such as a well left as a depleted oil field or a well whose production amount has decreased. 1 and an oil field reclamation device including a device for suspending the frame jet burner 1 are installed. At this time, if the existing well C is blocked by a plug, the plug is removed and the well C is opened.

Subsequently, the winding devices 19a and 19b are operated to unwind the suspension ropes 16a and 16b, and the winding device 20 is operated to unwind the pressing member 18 so that the frame jet burner 1 is installed in the existing well C. Suspend to. At this time, the hose reels 25, 26, 27 and the electric wire reel 28 are operated so as to synchronize with the suspension of the frame jet burner 1, and the fuel supply hose 4a, the air supply hose 5a, the cooling water supply hose 11a, and the electric wire 29 are operated. Unwind.

In this way, the frame jet burner 1 is suspended until reaching the target depth near the lower end D of the well C. The depth at which the frame jet burner 1 is suspended is preferably in the vicinity of the lower end D of the well C (upper edge of the oil field) because the oil field is regenerated. The depth of the lower end D of the well C is the oil field. Can be obtained from the drilling data.

After the flame jet burner 1 is suspended to the target depth, fuel is supplied to the fuel nozzle 4 and air is supplied to the air nozzle 5 and ignited by the ignition device 6 to start high-temperature combustion in the combustion chamber 3. Then, a high-temperature, high-speed flame jet 8 raised to, for example, 1500 ° C. or higher and Mach 1 or higher is injected from the injection nozzle 7. At this time, the frame jet burner 1 is cooled by supplying the cooling water to the cooling water supply nozzle 11 and flowing the cooling water into the cooling chamber 9. Cooling water after cooling the flame jet burner 1 is jetted from the jet nozzles 7, 7 a, 7 b toward the flame jet 8 through the water jet 12. Here, the inside of the depleted oil field is in a state where sand, rocks, water, etc., to which crude oil adheres is pressurized and sealed, and there is no oxygen, so as described above, the flame jet 8 by the flame jet burner 1 is used. Is not formed, and combustion does not progress elsewhere.

Subsequently, only the winding device 19b is unwound and the suspension cord 16b is loosened to support the weight of the frame jet burner 1 only by the suspension cord 16a. In this state, the pressing device 24 of the pushing device 21 pushes the weight. The moving member 23b is moved so as to press the member 18 against the fixed roller 23a, and the pressing member 18 is pushed into the well C by driving the fixed roller 23a by the drive motor 22. A pushing force F is applied to the.

Then, as shown in FIG. 5, the frame jet burner 1 is subjected to a force that changes the direction toward the circumferential side X of the well C with the lower end of the suspension rope 16 a as a fulcrum 16 a ′ by the pushing force F of the pushing member 18. . At this time, a high-temperature, high-speed flame jet 8 (shock wave) of, for example, 1500 ° C. or higher and Mach 1 or higher, which is injected from the injection nozzles 7, 7 b, generates thermal stress in the rock of the rock A, and this thermal stress is generated in the rock. When the rock is destroyed by exceeding the strength, the drilling is performed on the rock mass A. Accordingly, the winding device 19b, the hose reels 25, 26, and 27 and the electric wire are adjusted while adjusting the relationship between the tension of the suspension rope 16a that is unwound by the winding device 19a and the pushing force F applied to the pressing member 18 by the pushing device 21. By unwinding the reel 28, the frame jet burner 1 is propelled toward the circumferential side X of the well C with a small force, and as shown in FIG. A lateral hole 31 having an arbitrary length extending in the direction is formed. FIG. 6 shows a case where a plurality of lateral holes 31 are formed.

The flame jet burner 1 is provided with an optical sensor 13 for detecting a combustion flame and an electromagnetic valve 14 for cutting off the supply of air from the air nozzle 5 when the optical sensor 13 detects the disappearance of the combustion flame. In the unlikely event that the combustion flame disappears, the supply of air is cut off, so the problem of continuing to supply air is prevented. When such a problem occurs, the frame jet burner 1 can be lifted from the well C and inspected and repaired.

As described above, when the lateral hole 31 is formed in the rock mass A by the high-temperature / high-speed flame jet 8 ejected from the frame jet burner 1, the periphery of the lateral hole 31 is heated to a high temperature. Crude oil is separated from the sand and bedrock around the hole 31 and the fluidity of the crude oil is enhanced to flow into the lateral hole 31, whereby a crude oil layer is formed in the lateral hole 31. .

In addition, since the cooling water after the burner cooling is jetted from the water jet 12 toward the frame jet 8 jetted from the jet nozzle 7, the cooling water jetted from the water jet 12 has a high temperature and high speed. The flame jet 8 instantaneously turns into water vapor, and this water vapor flows into and acts around the lateral holes 31, thereby further promoting the action of causing the crude oil around the lateral holes 31 to flow into the lateral holes 31. Further, as described above, when the propulsion speed of the frame jet burner 1 propelled while forming the lateral hole 31 suddenly increases, the frame jet burner 1 has moved from the rock mass A to the oil sand layer or the like. In this case, it is considered that the crude oil in the oil sand layer is denatured by the high-temperature flame jet 8. At this time, the amount of cooling water supplied to the cooling water supply nozzle 11 is increased, and the water injection port 12 The flame jet 8 is cooled by increasing the injection amount of the cooling water jetted from above, and thereby the thermal influence on the crude oil by the flame jet 8 can be suppressed. In this way, the temperature of the frame jet 8 can be controlled by adjusting the amount of cooling water injected from the water injection port 12.

As described above, the crude oil that has flowed into the lateral holes 31 to form a crude oil layer can be easily recovered by a sampling method such as a conventional water injection method. In this case, the well for supplying and pressurizing water and the well for collecting the crude oil in the crude oil layer formed in the lateral hole 31 may be the same well or different wells.

In the above-mentioned present invention, a notable point is that the lateral jet 31 extending toward the circumferential side X of the well C is formed at the depth position of the oil field by the frame jet burner 1 suspended from the existing well C. As a result, the possibility of the lateral holes 31 communicating with a new crude oil layer that was not in communication with the existing well C is increased, so that the recovery of the crude oil recovered from the existing oil field is increased. The amount can be greatly increased.

For this reason, it is preferable to form a plurality of lateral holes 31 as shown in FIG. In order to form a plurality of lateral holes 31, after forming one lateral hole 31 as described above, the hoists 16a and 16b and the pressing member 18 are wound up by the winding devices 19a, 19b and 20, and the hose reel The hoses 4a, 5a, and 11a are wound up by 25, 26, and 27, and the electric wire 29 is taken up by the electric wire reel 28, whereby the frame jet burner 1 is pulled back to the lower end D position of the well C. Subsequently, in this state, only the winding device 19a is unwound and the suspension rope 16a is slackened so that the weight of the frame jet burner 1 is supported only by the suspension rope 16b. A pressing force F is applied to the pressing member 18 so as to be pressed into C. Then, a force in the direction opposite to the circumferential side X is applied to the frame jet burner 1 with the lower end of the suspension rope 16b shown in FIG. 5 as a fulcrum 16b ′. A lateral hole 31 directed in the opposite direction is formed.

Further, as described above, after the frame jet burner 1 is pulled back to the lower end D position of the well C, the tension of the suspension rope 16a unwound by the winding device 19a and the pushing force F against the pushing member 18 by the pushing device 21 By changing the relationship to a relationship different from the above, it is possible to form the lateral hole 31 having an angle different from that of the lateral hole 31 in the vertical direction. That is, when the pushing force F of the pushing member 18 is adjusted to be large, a horizontal hole 31 is formed that is nearly horizontal, and when the pushing force F of the pushing member 18 is adjusted to be small, a transverse hole 31 that is close to the vertical (well C) is formed. The

Further, after extending the well C vertically further downward from the lower end D of the well C, any number of lateral directions from the lower end E of the extended well C in the same manner as described above. The hole 31 may be formed.

It should be noted that it is difficult to accurately control the angle, direction, and the like of the lateral hole 31 formed in the oil field with respect to the existing well C by changing the propulsion direction of the frame jet burner 1 by the direction changing device 30. However, the change in the direction of the frame jet burner 1 in each case is tested in advance by variously changing the relationship between the tension of the suspension rope 16a unwound by the winding device 19a and the pushing force F of the pushing member 18 by the pushing device 21. Based on the data of this test, by adjusting the tension of the suspension rope 16a unwound by the winding device 19a and the pushing force F of the pushing member 18 by the pushing device 21 based on the data of this test, The direction in which the frame jet burner 1 is propelled can be adjusted.

However, the important point here is not to control the propulsion direction of the frame jet burner 1 with high accuracy, but to use the existing well C to make a circumferential direction with respect to the existing well C by the frame jet burner 1. The lateral hole 31 extending to the side X can be formed, and the formation of the lateral hole 31 increases the outflow of crude oil into the lateral hole 31 and communicates with the existing well C. By increasing the possibility of the lateral holes 31 communicating with a new crude oil layer that did not exist, a significant increase in the amount of crude oil collected that can be recovered from existing oil fields can be expected.

Furthermore, as described above, the horizontal hole 31 is formed by the high-temperature, high-speed flame jet 8 by the frame jet burner 1 and at the same time the vicinity of the horizontal hole 31 is heated. Compared to the case of heating, since the oil field can be directly heated in the ground, very effective heating is possible.

In the above embodiment, the case where the pushing device 21 provided with the fixed roller 23a and the moving roller 23b is used as the direction changing device 30 is illustrated. However, the pushing material 18 is pushed into the well C. As long as the pressing force F can be applied to the pressing member 18, a pressing device by another method may be used, the configuration of the frame jet burner 1 is not limited, and the scope of the present invention is not deviated. Of course, various changes can be made.

INDUSTRIAL APPLICABILITY The present invention is effective for recovering underground resources such as re-collecting crude oil with a simple device using a well left as a depleted oil field or a well with reduced production. Can be applied.

Claims (9)

An oil field regeneration method for re-collecting crude oil using an existing well, wherein a frame jet burner is suspended from the well by a pair of suspension ropes and a pressing member;
After the flame jet burner has reached the target depth, the flame jet burner is burned to inject a high-temperature, high-speed flame jet, and the suspension rope and pressing material are adjusted to move the flame jet burner to the side of the well in the circumferential direction. Forming a lateral hole by changing the direction and propelling, and
A step in which crude oil separated from sand and bedrock by heat at the time of forming a horizontal hole by a high-temperature and high-speed flame jet flows into the horizontal hole to form a crude oil layer,
An oil field regeneration method comprising: The oil field regeneration method according to claim 1, wherein a plurality of lateral holes are formed by performing an operation of changing the direction of the frame jet burner in the circumferential direction of the well and propelling it in a plurality of different directions. The oil field regeneration method according to claim 1, wherein cooling water after cooling the flame jet burner is jetted onto a flame jet jetted from the flame jet burner, and the periphery of the lateral hole is heated by the generated water vapor. The oil field reclamation method according to claim 1, wherein the crude oil layer formed in the lateral hole is recovered from the well to the outside by a sampling method using a hydraulic injection method. An oil field reclamation device for re-collecting crude oil using an existing well,
A frame equipped with an operation device including at least a fuel nozzle and a fuel supply hose, an air nozzle and an air supply hose, an ignition device, an electric wire, and a cooling water supply hose, and injecting a frame jet from the tip injection nozzle With a jet burner,
The frame jet burner is suspended in a well using a pair of suspension ropes and a pushing member, and the frame jet burner is propelled by changing the direction to the circumferential direction side of the well by the hanging ropes and the pushing member. A direction-changing device,
An oil field recycling apparatus characterized by comprising: The said direction change apparatus consists of a winding device which can wind up and unwind the pair of suspension ropes simultaneously or separately, and a pushing device capable of applying a pushing force to the pressing material. Oil field recycling equipment. The oil jet regeneration device according to claim 5, wherein the flame jet burner includes a plurality of injection nozzles at a tip thereof. The oil jet regeneration device according to claim 5, wherein the flame jet burner has a water injection port for injecting cooling water after burner cooling toward the flame jet injected from the injection nozzle. 6. The oil field according to claim 5, wherein the flame jet burner includes an optical sensor that detects a combustion flame, and an electromagnetic valve that shuts off the supply of air by an air nozzle when the disappearance of the combustion flame is detected by the optical sensor. Playback device.

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