CN106050201A - Cable-free layered water injection method that enables downhole flow, pressure and temperature monitoring - Google Patents
Cable-free layered water injection method that enables downhole flow, pressure and temperature monitoring Download PDFInfo
- Publication number
- CN106050201A CN106050201A CN201610648915.2A CN201610648915A CN106050201A CN 106050201 A CN106050201 A CN 106050201A CN 201610648915 A CN201610648915 A CN 201610648915A CN 106050201 A CN106050201 A CN 106050201A
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- pressure
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 150
- 238000002347 injection Methods 0.000 title claims abstract description 73
- 239000007924 injection Substances 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000012544 monitoring process Methods 0.000 title claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 210000002445 nipple Anatomy 0.000 claims description 52
- 239000007788 liquid Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 description 4
- 239000003550 marker Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 210000000582 semen Anatomy 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Classifications
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
-
- 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
-
- 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
- E21B47/06—Measuring temperature or pressure
-
- 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
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
-
- 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
- E21B47/14—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 using acoustic waves
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Acoustics & Sound (AREA)
- Remote Sensing (AREA)
- Geophysics And Detection Of Objects (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a cableless layering water injection method capable of achieving downhole flow, pressure and temperature monitoring. The method comprises the steps that a sound wave launcher sends an injection allocation rate adjustment sound wave signal, and a sound wave water injection working barrel receives the injection allocation rate adjustment sound wave signal, judges a layer, analyzes data and adjusts a water nozzle to an injection allocation value; the sound wave launcher sends a flow, pressure and temperature monitoring sound wave signal, and coding is conducted, wherein code information comprises layer information, value types, value weights and value sizes; the sound wave water injection working barrel receives the sound wave signal and then conducts decoding, the value types and the value weights are determined, the sound wave launcher sequentially sends zero to nine, the sent number is compared with the value recorded by the downhole sound wave water injection working barrel, the two values are equal, the value types and numbers on the value weights are judged, the above-mentioned steps are conducted repeatedly till the hundreds digit, the tens digit and the single digit of the value types obtained through decoding are obtained, and transmission of the flow value, the pressure value and the temperature value of a downhole water injection layer to be monitored is completed. By means of the cableless layering water injection method capable of achieving downhole flow, pressure and temperature monitoring, ground and downhole two-way communication can be achieved.
Description
Technical field
The present invention relates to a kind of stratified injection water technology used for water injection wells in oil fields, in particular, relate to one and utilize sound
Ripple communication, can monitor the cable-free type layered water injection method of downhole flow, pressure and temperature parameter.
Background technology
Water filling is to improve recovery ratio, the effective means of holding oil field stable high yield in oil field development.At present, laminated distributor under well note
The method of water mainly has: machinery retrievable type layered water injection method and cable distance type layered water injection method.Machinery retrievable type layering
Water-filling method is big by Well Deflection Influence, cannot apply in high angle hole and horizontal well.And cable distance type layered water injection method needs
To enter cable under down-hole, operation is complicated, costly.Additionally, limited by mineshaft diameter, cable distance type seperated layer water injection cannot
Small diameter borehole is applied.Semen Pruni Salicinae loyalty etc. proposes a kind of method of sound wave remote control water distribution (see patent No. CN
101498211A, China, date of publication in August, 2009), utilize technology of acoustic wave remote control down-hole action, it is achieved accurately joining of dispensing well
Water.The method is without entering cable under down-hole, simple to operate, but the method can only realize the one-way communication of ground and down-hole, nothing
The method monitoring parameter such as downhole flow, pressure and temperature, can only be that ground is to down-hole one-way transmission or control.
Summary of the invention
The invention aims to solve to be affected greatly by hole deviation and mineshaft diameter present in existing separate zone waterflooding technology,
The two-way communication problem of ground and down-hole cannot be realized, it is provided that a kind of realize downhole flow, pressure and temperature monitoring untethered
Formula layered water injection method, is not affected by hole deviation and mineshaft diameter, it is possible to achieve ground and the two-way communication of down-hole, easy and simple to handle,
Economical and efficient.
It is an object of the invention to be achieved through the following technical solutions.
The present invention a kind of realizes downhole flow, the cable-free type layered water injection method of pressure and temperature monitoring, including with
Lower step:
(1) ground controller controls pinger, sends injection allocation amount regulation acoustic signals, and sound wave water filling seating nipple receives
After acoustic signals, it is judged that layer position analytical data, regulation water nozzle aperture size to injection allocation value, complete the selection to water filling layer position and
Flow-control；
(2) ground controller controls pinger transmission downhole flow, pressure and temperature monitoring acoustic signals, and sound wave is believed
Number encoded, coding information include layer position information, value type (flow, pressure, temperature), numerical value weight (hundred, ten,
Individual position) and numerical values recited (numerical value between 0-9)；
(3) decode after the acoustic signals described in sound wave water filling seating nipple receiving step (2) of water filling layer to be monitored, determine
The value type (flow, pressure, temperature) of acoustic signals and numerical value weight (hundred, ten, individual position), pinger is temporally
Sequence sends the respective value class of the sound wave digital signal of 0 to 9, the numeral of transmission and Acoustic water filling seating nipple record successively
The numerical value of type and numerical value weight compares, the fast ON/OFF of electromagnetism if two numerical value are equal, before sound wave water filling seating nipple water nozzle
Valve cuts out, and observes that well head pressure rises by ground controller, thus judges the number in corresponding value type and numerical value weight
Word, repeat the above steps, until determining decoding hundred of gained value type, ten and unit numbers, is finally completed down-hole and treats
The monitoring flow value of water filling layer, force value and the transmission of temperature value.
Acoustic signals in described step (1) comprises sound wave water filling seating nipple layer bit-identify information and flow value information.
In described step (3), the sound wave water filling seating nipple water nozzle of water filling layer to be monitored is opened, the sound wave note of other water filling layers
Water seating nipple water nozzle is closed.
Described step (1) manufactures element to being provided with sound wave in the pinger in step (3), and described sound wave manufactures unit
The frequency of sound wave of part generation, amplitude, waveform are set by ground controller, and described sound wave manufactures element and is immersed in water injection string liquid
In, described acoustic signals reaches the sound wave water filling seating nipple of down-hole correspondence water filling layer, sound wave water filling by liquid in water injection string
Seating nipple receives signal action.
Plug, sound wave water filling seating nipple, oil pipe and tubing nipple that described water injection string includes being sequentially connected with from the bottom to top,
Being arranged at the wellhead assembly of cannula tip, described pinger is arranged on wellhead assembly, ground controller powers, described
It is layered by being sheathed on layering tool oil pipe and tubing nipple outside in sleeve pipe, wherein, each water filling layer correspondence one
Sound wave water filling seating nipple.
Described step (1) to installing water nozzle in the sound wave water filling seating nipple in step (3), the fast close/open valve of electromagnetism, flow pass
Sensor, temperature sensor and pressure transducer.
Compared with prior art, technical scheme is had the benefit that
(1) present invention need not steel wire operation, it is not necessary to enters cable or hydraulic line under down-hole, not by hole deviation and pit shaft
Diameter affects, and can be widely applied to the water injection well of various casing programme；
(2) present invention is by entering a sound wave water filling seating nipple under each water filling layer, controls well by ground controller
Voice wave launcher sends injection allocation amount acoustic signals and accurately controls the water injection rate of random layer, enters layered waterflooding quantity easily and efficiently
Row allotment, by the two-way communication between ground controller and sound wave water filling seating nipple, accurate measurements downhole flow, pressure and temperature
Degree, is a kind of layered water injection method economic, efficient.
Accompanying drawing explanation
Fig. 1 is the structural representation of water injection string in the present invention；
Fig. 2 is the structural representation of sound wave water filling seating nipple in the present invention；
Fig. 3 is the flow chart that ground of the present invention communicates with under-well bi-directional.
Reference: 1 ground controller；2 pingers；3 wellhead assemblies；4 oil pipes and tubing nipple；5 layering tool；
6 sound wave water filling seating nipples；7 plugs；8 sleeve pipes；9 water nozzles；The 10 fast close/open valves of electromagnetism.
Detailed description of the invention
For the summary of the invention of patent of the present invention, feature and effect can be further appreciated that, hereby enumerate following example, and coordinate
Accompanying drawing describes in detail as follows:
As depicted in figs. 1 and 2, in the present invention, water injection string includes plug 7, the sound wave water filling work being sequentially connected with from the bottom to top
Making cylinder 6, oil pipe and tubing nipple 4, wellhead assembly 3 etc., described sound wave water filling seating nipple about 6 two ends are respectively set to screw thread even
Connect button, for being connected with oil pipe and tubing nipple 4, be circumferentially provided with water nozzle 9, for corresponding water filling layer water filling, water
Be correspondingly arranged on the fast close/open valve of electromagnetism 10 in mouth 9, it addition, be also equipped with in described sound wave water filling seating nipple 6 flow transducer,
Temperature sensor and pressure transducer (two-way can record the force value before and after water nozzle 9).
Enter multiple layering tool 5 (packer etc. can be used) under in down-hole casing 8, sleeve pipe 8 is divided into multiple water filling layer, tool
Body quantity can be designed according to practical situation, is lowered in sleeve pipe 8 after being connected by above-mentioned water injection string, and wellhead assembly 3 is pacified
Being loaded on sleeve pipe 8 upper end, water injection string is divided into above ground portion and underground part, in underground part, each water filling layer is correspondingly arranged
One sound wave water filling seating nipple 6, all can be connected by oil pipe and tubing nipple 4, to reach between each sound wave water filling seating nipple 6
Len req.
Described pinger 2 is arranged on wellhead assembly 3, ground controller 1 power, in described pinger 2
Being additionally provided with sound wave and manufacture element, the frequency of sound wave of described sound wave manufacture element generation, amplitude, waveform are set by ground controller 1
Fixed, described sound wave manufactures element and is immersed in water injection string liquid, and described acoustic signals is by liquid transmissive in water injection string, institute
State ground controller 1 to control pinger 2 and send the injection allocation amount regulation acoustic signals and downhole flow, pressure of any water filling layer
Power and temperature monitoring acoustic signals, the sound wave that described acoustic signals reaches down-hole correspondence water filling layer by liquid in water injection string is noted
Water seating nipple 6, sound wave water filling seating nipple connects the collections of letters No. 6 action.
As it is shown on figure 3, the cable-free type layered water injection method of the realized downhole flow of the present invention, pressure and temperature monitoring,
The two-way communication of ground and down-hole can be realized based on above-mentioned water injection string, realized the control of downhole flow by sonic transmissions order
System, and realize downhole flow, pressure and temperature monitoring.
The regulation of underground water-injection layer injection allocation amount: utilize layering tool 5 to realize the separation of water filling layer, by ground controller 1
Controlling the pinger 2 of well head, send the injection allocation amount regulation acoustic signals of random layer position, described acoustic signals comprises sound wave note
6 layers of bit-identify information of water seating nipple and flow value information, the sound wave being reached respective layer position, down-hole by liquid in water injection string is noted
Water seating nipple 6, sound wave water filling seating nipple 6 receives acoustic signals action, it is judged that layer position analytical data, regulates water nozzle 9 aperture
Size, to injection allocation value, completes the selection to water filling layer position and flow-control.
Downhole flow, the monitoring of pressure and temperature: ground controller 1 controls pinger 2 and sends downhole flow, pressure
With temperature monitoring acoustic signals, acoustic signals is encoded, coding information include layer position information, value type (flow, pressure,
Temperature), numerical value weight (hundred, ten, individual position) and numerical values recited (certain numerical value between 0-9).When needs read a certain note
During the data of water layer sound wave water filling seating nipple 6, keep the opening of this water filling layer water nozzle 9, close other all water filling layer sound
The water nozzle 9 of ripple water filling seating nipple 6.The sound wave water filling seating nipple 6 of water filling layer to be monitored decodes after receiving acoustic signals, determines sound wave
The value type (flow, pressure and temperature) of signal and numerical value weight (hundred, ten, individual position), pinger 2 temporally sequence
Leu time sends the sound wave digital signal of 0 to 9, the respective value class that the numeral of transmission records with Acoustic water filling seating nipple 6
The numerical value of type and numerical value weight compares, if two numerical value are equal, the electromagnetism before sound wave water filling seating nipple 6 water nozzle 9 opens soon/
Close valve 10 and will be momentarily closed a period of time, now by ground controller 1 it is observed that well head pressure rises, thus on ground
Determine and decode the numerical values recited that the down-hole value type obtained is corresponding with numerical value weight, the electricity before sound wave water filling seating nipple 6 water nozzle 9
The fast close/open valve of magnetic 10 is opened, and repeat the above steps is until determining decoding hundred of gained value type, ten and units
Word, until finally determining flow value, force value and the temperature value of down-hole water filling to be monitored layer, reverse realization acoustic signals is from well
The lower function toward terrestrial transmission data.
Flow value, force value or the temperature value of transmission is all split as hundred, ten and three groups, individual position numeral, and numeral all uses
Decimal scale mode, comprises numeral 0,1,2,3 ... 7,8 and 9, and as a example by downhole flow is monitored, ground pinger 2 will be from hundred
Starting, launch the most successively and comprise 0-9 numerical values recited and the acoustic signals of flow identification code, acoustic signals passes through water filling
In tubing string, liquid reaches Acoustic water filling seating nipple 6, and sound wave water filling seating nipple 6 decodes after receiving acoustic signals, determines sound wave
The value type of signal is flow, and numerical value weight is hundred, the numerical value comprised by acoustic signals and Acoustic water filling seating nipple 6
The hundreds word of the flow value of record compares, in sequence sometime, if two numerical value are equal, and sound wave water filling seating nipple 6 water
The fast close/open valve of electromagnetism 10 before mouth 9 will be momentarily closed a period of time, now by ground controller 1 it is observed that well head pressure
Power rises, such that it is able to determine the hundreds word of downhole flow value on ground, the electromagnetism before sound wave water filling seating nipple 6 water nozzle 9 is fast
Close/open valve 10 reopens, and uses same method to determine ten of downhole flow value, units value successively, and finally determines well
Dirty value.Use same method to determine underground pressure force value and temperature value, i.e. realize the biography of flow value, force value or temperature value
Defeated, it is achieved the function of surface readout Acoustic water filling seating nipple 6 parameter.
The flow being such as now to Acoustic water filling seating nipple 6 to record is delivered to ground, as flow value be 486 sides/
My god.Because the sound wave water filling seating nipple 6 of down-hole sends the ability of sound wave the most earthward, ground pinger just can only be passed through
2 launch to down-hole, perform the action of the fast close/open valve of electromagnetism 10 after Acoustic water filling seating nipple 6 receives sound wave again.Specifically
Method is as follows: (1) ground pinger 2 first sends one section of acoustic signals reading flow parameter, and this signal includes that flow is believed
Number, read correspondence work number of plies signal；(2) sending acoustic signals, marker is the hundreds word signal of transmitted traffic,
Numeral 1 is sent in the 1t time, unequal with the flow hundreds 4 of Acoustic water filling seating nipple 6 record, then send out in the 2t time
Send numeral 2, the most unequal....Until the 4t time sends numeral 4, and the flow hundreds of Acoustic water filling seating nipple 6 record
Equal, the fast close/open valve of electromagnetism 10 before at this moment Acoustic water filling seating nipple 6 water nozzle 9 is closed, and well head pressure quickly raises, table
The flow hundreds word of face Acoustic water filling seating nipple 6 record is 4, and outlet automatically opens up afterwards, completes hundreds word
Down-hole is toward aboveground indirect communication；(3) pinger 2 continues to send acoustic signals toward down-hole, and marker is transmitted traffic
Ten digits signal, the most same to step (2), until sending numeral 8 during 8t time, Acoustic water filling seating nipple 6 closes accordingly
Close outlet, judge ten digits equally；(4) same procedure is used to read unit numbers 6.
Although function and the work process of the present invention being described above in conjunction with accompanying drawing, but the invention is not limited in
Above-mentioned concrete function and work process, above-mentioned detailed description of the invention is only schematic rather than restrictive, ability
The those of ordinary skill in territory is under the enlightenment of the present invention, without departing from present inventive concept and scope of the claimed protection situation
Under, it is also possible to make a lot of form, within these belong to the protection of the present invention.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610648915.2A CN106050201B (en) | 2016-08-09 | 2016-08-09 | Downhole flow, the cable-free type layered water injection method that pressure and temperature monitors can be achieved |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610648915.2A CN106050201B (en) | 2016-08-09 | 2016-08-09 | Downhole flow, the cable-free type layered water injection method that pressure and temperature monitors can be achieved |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106050201A true CN106050201A (en) | 2016-10-26 |
| CN106050201B CN106050201B (en) | 2018-07-24 |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854216A (en) * | 2019-03-18 | 2019-06-07 | 中国石油化工股份有限公司 | The layered water injection method of water injection well depositing distributed communication |
| CN109869123A (en) * | 2019-03-18 | 2019-06-11 | 中国石油化工股份有限公司 | Water injection well depositing system |
| CN110185422A (en) * | 2019-05-23 | 2019-08-30 | 中国海洋石油集团有限公司 | A kind of novel cable-free type data double-way transmitting device of water injection well |
| CN110500087A (en) * | 2019-08-28 | 2019-11-26 | 中国石油集团川庆钻探工程有限公司 | Signal transmission method based on mud pulse pressure amplitude |
| CN110735621A (en) * | 2018-07-18 | 2020-01-31 | 中国石油化工股份有限公司 | method and system for intelligent testing and adjusting underground wireless layered water distribution |
| CN110984927A (en) * | 2019-12-11 | 2020-04-10 | 东北石油大学 | From wireless water injection mandrel of electricity generation formula intelligence |
| CN111126620A (en) * | 2019-12-10 | 2020-05-08 | 河海大学 | Characteristic fingerprint generation method for time sequence and application |
| CN111502616A (en) * | 2019-01-30 | 2020-08-07 | 中国石油天然气股份有限公司 | Method, device and storage medium for determining water injection parameters |
| CN112761601A (en) * | 2021-02-03 | 2021-05-07 | 哈尔滨理工大学 | Wireless layered water injection method for monitoring downhole flow, pressure and temperature |
| CN114575804A (en) * | 2022-02-09 | 2022-06-03 | 中海油能源发展股份有限公司 | Multi-layer pipe column capable of being used for underground layering, quality-based and partial-pressure injection |
| CN114575803A (en) * | 2022-02-09 | 2022-06-03 | 中海油能源发展股份有限公司 | Layered water injection tool capable of realizing underground charging and signal transmission and transmission method thereof |
| CN114893131A (en) * | 2022-03-09 | 2022-08-12 | 中海油能源发展股份有限公司 | A kind of monitoring pipe string for abnormal casing pressure of layered water injection well and its monitoring method |
| CN115898344A (en) * | 2023-02-21 | 2023-04-04 | 西南石油大学 | Flow control system and method for underground stroke control |
| CN117823126A (en) * | 2023-12-29 | 2024-04-05 | 中国石油天然气集团有限公司 | A method for characterizing and tapping the remaining oil in massive bottom water reservoirs |
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2016
- 2016-08-09 CN CN201610648915.2A patent/CN106050201B/en active Active
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735621A (en) * | 2018-07-18 | 2020-01-31 | 中国石油化工股份有限公司 | method and system for intelligent testing and adjusting underground wireless layered water distribution |
| CN110735621B (en) * | 2018-07-18 | 2021-11-02 | 中国石油化工股份有限公司 | Method and system for intelligent testing and adjusting underground wireless layered water distribution |
| CN111502616A (en) * | 2019-01-30 | 2020-08-07 | 中国石油天然气股份有限公司 | Method, device and storage medium for determining water injection parameters |
| CN109869123A (en) * | 2019-03-18 | 2019-06-11 | 中国石油化工股份有限公司 | Water injection well depositing system |
| CN109869123B (en) * | 2019-03-18 | 2023-09-22 | 中国石油化工股份有限公司 | Multi-layer separate injection system for water injection well |
| CN109854216A (en) * | 2019-03-18 | 2019-06-07 | 中国石油化工股份有限公司 | The layered water injection method of water injection well depositing distributed communication |
| CN110185422A (en) * | 2019-05-23 | 2019-08-30 | 中国海洋石油集团有限公司 | A kind of novel cable-free type data double-way transmitting device of water injection well |
| CN110500087A (en) * | 2019-08-28 | 2019-11-26 | 中国石油集团川庆钻探工程有限公司 | Signal transmission method based on mud pulse pressure amplitude |
| CN111126620A (en) * | 2019-12-10 | 2020-05-08 | 河海大学 | Characteristic fingerprint generation method for time sequence and application |
| CN111126620B (en) * | 2019-12-10 | 2020-11-03 | 河海大学 | Characteristic fingerprint generation method for time sequence and application |
| CN110984927B (en) * | 2019-12-11 | 2020-07-28 | 东北石油大学 | A self-generating intelligent wireless water distributor |
| CN110984927A (en) * | 2019-12-11 | 2020-04-10 | 东北石油大学 | From wireless water injection mandrel of electricity generation formula intelligence |
| CN112761601A (en) * | 2021-02-03 | 2021-05-07 | 哈尔滨理工大学 | Wireless layered water injection method for monitoring downhole flow, pressure and temperature |
| CN114575804A (en) * | 2022-02-09 | 2022-06-03 | 中海油能源发展股份有限公司 | Multi-layer pipe column capable of being used for underground layering, quality-based and partial-pressure injection |
| CN114575803A (en) * | 2022-02-09 | 2022-06-03 | 中海油能源发展股份有限公司 | Layered water injection tool capable of realizing underground charging and signal transmission and transmission method thereof |
| CN114893131A (en) * | 2022-03-09 | 2022-08-12 | 中海油能源发展股份有限公司 | A kind of monitoring pipe string for abnormal casing pressure of layered water injection well and its monitoring method |
| CN115898344A (en) * | 2023-02-21 | 2023-04-04 | 西南石油大学 | Flow control system and method for underground stroke control |
| CN115898344B (en) * | 2023-02-21 | 2023-05-19 | 西南石油大学 | Flow control system and method for downhole travel control |
| CN117823126A (en) * | 2023-12-29 | 2024-04-05 | 中国石油天然气集团有限公司 | A method for characterizing and tapping the remaining oil in massive bottom water reservoirs |
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| Publication number | Publication date |
|---|---|
| CN106050201B (en) | 2018-07-24 |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CNOOC Energy Development Co., Ltd. Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: CNOOC Energy Development Co., Ltd. Patentee before: China National Offshore Oil Corporation |
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Inventor after: Wang Liangjie Inventor after: Yu Jifei Inventor after: Cao Yanfeng Inventor after: Yang Wanyou Inventor after: Liu Min Inventor after: Mao Qingkai Inventor after: Zhang Lei Inventor after: Luo Changhua Inventor before: Wang Liangjie Inventor before: Yang Wanyou Inventor before: Liu Min Inventor before: Mao Qingkai Inventor before: Zhang Lei Inventor before: Luo Changhua |
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