CN111852403A - Perforation, test and electric submersible pump liquid discharge triple-connection operation process - Google Patents
Perforation, test and electric submersible pump liquid discharge triple-connection operation process Download PDFInfo
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- CN111852403A CN111852403A CN201910326979.4A CN201910326979A CN111852403A CN 111852403 A CN111852403 A CN 111852403A CN 201910326979 A CN201910326979 A CN 201910326979A CN 111852403 A CN111852403 A CN 111852403A
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- 239000007788 liquid Substances 0.000 title claims abstract description 53
- 238000012360 testing method Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 46
- 230000008569 process Effects 0.000 title claims abstract description 43
- 210000001503 joint Anatomy 0.000 claims abstract description 33
- 238000012544 monitoring process Methods 0.000 claims description 15
- 239000006096 absorbing agent Substances 0.000 claims description 11
- 230000035939 shock Effects 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 4
- 230000001012 protector Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 9
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 230000000246 remedial effect Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 8
- 230000007547 defect Effects 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
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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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/116—Gun or shaped-charge perforators
-
- 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
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/128—Adaptation of pump systems with down-hole electric drives
-
- 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
- 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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a triple-link operation process for perforation, test and liquid discharge of an electric submersible pump, which comprises the combination of three processes of perforation, test and liquid discharge, wherein the electric submersible pump is selected as a liquid discharge part of the triple-link operation; the power cable is connected with the underground signal wire and the power wire in a butt joint mode through the oil pipe, the liquid drainage depth can reach 4000 meters, and the application range is wide; the liquid discharge strength can be conveniently controlled, continuous liquid discharge can be ensured, liquid discharge is uniform, and the yield of the stratum can be favorably obtained; the wellhead device is simple, does not cause environmental pollution, and has great advantages for sensitive areas such as offshore platform wells and the like; the change curves of the pressure and the temperature at the bottom of the well can be read in real time during testing, the time for opening and closing the well can be conveniently determined, the value of the measured data can be ensured, the construction period is greatly shortened, the reason can be known immediately when abnormal conditions occur, remedial measures can be taken in time, the cost is saved by at least more than 50% compared with the current process, and the construction period is reduced by more than 40%.
Description
Technical Field
The invention relates to the technical field of oil exploitation and downhole operation, in particular to a perforation, test and submersible electric pump liquid discharge triple-link operation process.
Background
Oil extraction refers to the act of excavating and extracting oil in places where oil is stored. In the process of oil exploitation, oil gas flows into a well bottom from a reservoir stratum and rises to a well head from the well bottom, an oil exploitation well is needed in the process of oil exploitation, the environment requirement is higher and higher along with the deepening of the oil exploitation well, and the current perforation-test-liquid drainage triple-link operation processes have serious defects. The prior liquid discharge in perforation-test-liquid discharge triple operation comprises four liquid discharge methods, namely pumping liquid discharge, jet pump liquid discharge, screw pump liquid discharge and continuous oil pipe nitrogen liquid discharge. These four methods of drainage have significant disadvantages, the draw drainage: the drainage depth is less than 2000 m, the environment is easy to be polluted, the construction period is long, the existing oil testing well is deeper and deeper, the environmental protection requirement is higher and higher, and the construction requirement can not be almost met by pumping drainage; the jet pump has the following defects: the requirement on power fluid is high, the vehicle cost is high, stratum effluent and the power fluid are mixed, and sampling is particularly troublesome; the screw pump discharges liquid and has the following defects: the drainage depth is less than 2000 m, the drainage can only be carried out in a vertical well, the inclination of the well is larger and deeper at present, and the drainage of a screw pump is difficult to meet the construction requirement; the disadvantages of coiled tubing nitrogen gas drainage are as follows: the liquid discharge strength cannot be controlled, the strength is too high, sand is easy to generate on an overlarge layer to cause pipe column blocking, liquid supply of most wells is insufficient, intermittent liquid discharge such as liquid discharge, liquid level recovery and liquid discharge is realized, and the vehicle cost caused by long time is very high. The pressure gauge for triple-acting test in the prior art is a storage type pressure gauge, and no real-time data can estimate the well switching time, so that the additional operation time is increased or valuable data is not obtained. And the data can not be transmitted in real time, so that the problems in the operation process can not be realized, and the result can be obtained only after the test pipe column is lifted out. If valuable data are not obtained, the formation testing is carried out again, and because various parameters of the formation of the washing-out string are changed, the measured data have certain deviation with the original formation data.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides a perforation, test and electric submersible pump liquid discharge triple-joint operation process, and solves the problems that the existing perforation-test-liquid discharge triple-joint operation process cannot transmit data in real time, cannot simultaneously realize wide application range and convenient control of liquid discharge strength.
In order to achieve the purpose, the invention provides the following technical scheme: the three-linkage operation process comprises the steps of perforation, test and liquid discharge of an electric submersible pump;
the perforation process is composed of a shock absorber, an ignition head and a gun body, the perforation process is realized, a channel of the test layer and a shaft is communicated, the top end of the gun body is connected with the bottom end of the ignition head, and the top end of the ignition head is connected with the bottom end of the shock absorber;
the testing part comprises a reverse circulation valve, a signal wire, a monitoring pressure gauge, a testing valve, a hydraulic locking joint, a pressure gauge, a jar, a safety joint, a pressure transmission joint and a packer, and realizes a formation testing process, various required parameters can be tested according to design requirements, the top end of the packer is connected with the bottom end of the pressure transmission joint, the top end of the pressure transmission joint is connected with the bottom end of the safety joint, the top end of the safety joint is connected with the bottom end of the jar, the top end of the jar is connected with the bottom end of the pressure gauge, the top end of the pressure gauge is connected with the bottom end of the hydraulic locking joint, the top end of the hydraulic locking joint is connected with the bottom end of the testing valve, the top end of the testing valve is connected with the bottom end of the monitoring pressure gauge, the top end of the monitoring pressure gauge is connected with the bottom end of the reverse circulation valve, the top end, the cable butt joint lower joint is connected with the pressure gauge through a signal wire;
The liquid discharge part is composed of a power line and an electric submersible pump unit, the liquid discharge process is realized, the yield can be obtained, a sample can be obtained, the electric submersible pump unit is arranged between the shock absorber and the packer, and the electric submersible pump unit is connected with the cable butt joint lower joint through the power line.
According to the technical scheme, the combination of the three processes of perforation, testing and liquid discharge is positioned in the pipe column.
According to the technical scheme, the interior of the pipe column further comprises a power cable and a cable butt joint upper joint, the top end of the cable butt joint lower joint is provided with the cable butt joint upper joint, the power cable is connected with the cable butt joint upper joint in a downward mode, and the power cable is connected with the cable butt joint lower joint in a butt joint mode in a downward mode in the pipe column.
According to the technical scheme, the power cable is circular and comprises power lines, signal lines and self heating lines, the number of the power lines is 3, and the number of the signal lines and the number of the self heating lines are 1.
According to the technical scheme, the other end of the signal wire is connected with the monitoring pressure gauge.
According to the technical scheme, the electric submersible pump unit consists of an electric submersible motor, a protector, a separator, an electric submersible pump, an electric submersible cable, a control cabinet and a transformer.
According to the technical scheme, the submersible electric pump unit or the submersible screw pump and other electric-driven rodless pumps are adopted.
The invention has the beneficial effects that: 1) the drainage depth can reach 4000 meters, and the application range is wide; 2) the liquid discharge strength can be conveniently controlled, continuous liquid discharge can be ensured, liquid discharge is uniform, and the yield of the stratum can be favorably obtained; 3) the wellhead device is simple, does not cause environmental pollution, and has great advantages for sensitive areas such as offshore platform wells and the like; 4) during testing, the change curves of pressure and temperature at the bottom of the well can be read in real time, the time for opening and closing the well can be conveniently determined, the value of the measured data can be ensured, the construction period is greatly shortened, the reason can be known immediately when abnormal conditions occur, and remedial measures can be taken in time; 5) compared with the prior art, the method has the advantages that the cost is saved by at least 50%, and the construction period is reduced by more than 40%.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the triple-link process structure of the present invention.
Reference numbers in the figures: 1. a power cable; 3. a cable is butted with an upper joint; 4. a cable is butted with a lower joint; 5. a cable pass-through joint; 6. a reverse circulation valve; 7. a signal line; 8. monitoring the pressure gauge; 9. a test valve; 10. hydraulically locking the joint; 11. a pressure gauge; 12. a jar; 13. a safety joint; 14. a pressure transmission joint; 15. a packer; 16. a power line; 17. an electric submersible pump unit; 18. a shock absorber; 19. an ignition head; 20. a gun body.
Detailed Description
The following describes the present invention in further detail with reference to fig. 1.
The embodiment is given by figure 1, and the perforation, test and electric submersible pump liquid discharge triple-combined process comprises the combination of the three processes of perforation, test and liquid discharge;
the perforation process is composed of a shock absorber 18, an ignition head 19 and a gun body 20, the perforation process is realized, a test layer and a shaft channel are communicated, the top end of the gun body 20 is connected with the bottom end of the ignition head 19, and the top end of the ignition head 19 is connected with the bottom end of the shock absorber 18;
the testing part consists of a reverse circulation valve 6, a signal wire 7, a monitoring pressure gauge 8, a testing valve 9, a hydraulic locking joint 10, a pressure gauge 11, a jar 12, a safety joint 13, a pressure transmission joint 14 and a packer 15, realizes the formation testing process, can measure various required parameters according to design requirements, the top end of the packer 15 is connected with the bottom end of the pressure transmission joint 14, the top end of the pressure transmission joint 14 is connected with the bottom end of the safety joint 13, the top end of the safety joint 13 is connected with the bottom end of the jar 12, the top end of the jar 12 is connected with the bottom end of the pressure gauge 11, the top end of the pressure gauge 11 is connected with the bottom end of the hydraulic locking joint 10, the top end of the hydraulic locking joint 10 is connected with the bottom end of the testing valve 9, the top end of the testing valve 9 is connected with the bottom end of the monitoring pressure gauge 8, the top end of the monitoring pressure gauge 8 is connected with the bottom end of, the top end of the cable penetrating joint 5 is provided with a cable butt joint lower joint 4, and the cable butt joint lower joint 4 is connected with the pressure gauge 11 through a signal wire 7;
The liquid discharge part consists of a power line 16 and an electric submersible pump unit 17, the liquid discharge process is realized, the yield can be obtained, a sample can be obtained, the electric submersible pump unit 17 is arranged between the shock absorber 18 and the packer 15, and the electric submersible pump unit 17 is connected with the cable butt joint lower joint 4 through the power line 16.
According to the technical scheme, the combination of the three processes of perforation, testing and liquid discharge is positioned in the pipe column.
According to the technical scheme, the interior of the pipe column further comprises a power cable 1 and a cable butt joint upper joint 3, the top end of the cable butt joint lower joint 4 is provided with the cable butt joint upper joint 3, the power cable 1 is connected with the cable butt joint upper joint 3 in a downward mode, and the power cable 1 enters the pipe column from the inside of the pipe column and is in butt joint with the cable butt joint lower joint 4.
According to the technical scheme, the power cable 1 is circular and comprises power lines 16, signal lines 7 and self-heating lines, the number of the power lines 16 is 3, and the number of the signal lines 7 and the number of the self-heating lines are 1.
According to the technical scheme, the other end of the signal wire 7 is connected with the monitoring pressure gauge 8.
According to the technical scheme, the electric submersible pump unit 17 consists of an electric submersible motor, a protector, a separator, an electric submersible pump, an electric submersible cable, a control cabinet and a transformer.
According to the technical scheme, the submersible electric pump unit 17 or the submersible screw pump and other electric-driven rodless pumps are adopted.
The invention comprises the combination of three processes of perforation, test and liquid discharge, the structure of the tubular column is shown in the attached figure, the perforation part consists of a shock absorber 18, an ignition head 19 and a gun body 20, the perforation process is realized, and a channel for communicating a test layer with a shaft is communicated; the testing part consists of a reverse circulation valve 6, a signal wire 7, a monitoring pressure gauge 8, a testing valve 9, a hydraulic locking joint 10, a pressure gauge 11, a jar 12, a safety joint 13, a pressure transmission joint 14 and a packer 15, so that the formation testing process is realized, and various required parameters can be tested according to design requirements; the liquid discharge part comprises a cable 16 and an electric submersible pump unit 17, the liquid discharge process is realized, the yield can be obtained and samples can be obtained, the power cable 1 is circular and comprises 163 power lines, 71 signal lines and a self heating line, the power cable 1 is connected with the cable butt joint upper joint 3 in a downward mode, the power cable is connected with the cable butt joint lower joint 4 in a downward mode in a pipe column for butt joint, after the butt joint is successful, the signal line 7 is connected with the monitoring pressure gauge 8 and the pressure gauge 11, data are transmitted to the ground in real time through the signal line during testing, the electric submersible pump unit 17 is also connected with the power line 16 after the butt joint is successful, and liquid discharge can be realized.
The liquid drainage depth of the invention can reach 4000 meters, and the application range is wide; the liquid discharge strength can be conveniently controlled, continuous liquid discharge can be ensured, liquid discharge is uniform, and the yield of the stratum can be favorably obtained; the wellhead device is simple, does not cause environmental pollution, and has great advantages for sensitive areas such as offshore platform wells and the like; the change curves of the pressure and the temperature at the bottom of the well can be read in real time during testing, the time for opening and closing the well can be conveniently determined, the value of the measured data can be ensured, the construction period is greatly shortened, the reason can be known immediately when abnormal conditions occur, remedial measures can be taken in time, the cost is saved by at least more than 50% compared with the current process, and the construction period is reduced by more than 40%.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The three-linkage operation process of perforation, test and liquid discharge of the electric submersible pump is characterized by comprising the combination of three processes of perforation, test and liquid discharge;
the perforation process is composed of a shock absorber (18), an ignition head (19) and a gun body (20), the perforation process is realized, a test layer is communicated with a channel of a shaft, the top end of the gun body (20) is connected with the bottom end of the ignition head (19), and the top end of the ignition head (19) is connected with the bottom end of the shock absorber (18);
the testing part consists of a reverse circulation valve (6), a signal wire (7), a monitoring pressure gauge (8), a testing valve (9), a hydraulic locking joint (10), a pressure gauge (11), a jar (12), a safety joint (13), a pressure transmitting joint (14) and a packer (15), the formation testing process is realized, various required parameters can be tested according to design requirements, the top end of the packer (15) is connected with the bottom end of the pressure transmitting joint (14), the top end of the pressure transmitting joint (14) is connected with the bottom end of the safety joint (13), the top end of the safety joint (13) is connected with the bottom end of the jar (12), the top end of the jar (12) is connected with the bottom end of the pressure gauge (11), the top end of the pressure gauge (11) is connected with the bottom end of the hydraulic locking joint (10), the top end of the hydraulic locking joint (10) is connected with the bottom end of the testing valve (9), and the top end of the testing valve (9) is connected with the bottom end of the monitoring pressure gauge (, the top end of the monitoring pressure gauge (8) is connected with the bottom end of the reverse circulation valve (6), the top end of the reverse circulation valve (6) is provided with a cable through joint (5), the top end of the cable through joint (5) is provided with a cable butt joint lower joint (4), and the cable butt joint lower joint (4) is connected with the pressure gauge (11) through a signal wire (7);
The liquid discharge part consists of a power line (16) and an electric submersible pump unit (17), the liquid discharge process is realized, the yield can be obtained, a sample can be obtained, the electric submersible pump unit (17) is arranged between the shock absorber (18) and the packer (15), and the electric submersible pump unit (17) is connected with the cable butt joint lower joint (4) through the power line (16).
2. The perforation, test and electric submersible pump drain triplex process of claim 1 wherein the combination of perforation, test and drain are all located inside the string.
3. The perforation, test and electrical submersible pump liquid discharge triple operation process according to claim 2, characterized in that the interior of the pipe column further comprises a power cable (1) and a cable butt joint upper joint (3), the top end of the cable butt joint lower joint (4) is provided with the cable butt joint upper joint (3), the power cable (1) is connected with the cable butt joint upper joint (3), and the power cable (1) is connected with the cable butt joint lower joint (4) in a downward mode from the inside of the pipe column to be in butt joint with the cable butt joint lower joint (4).
4. The perforation, test and electric submersible pump drainage triple-link process according to claim 3, characterized in that the power cable (1) is circular and consists of power lines (16), signal lines (7) and self-heating lines, the number of the power lines (16) is 3, and the number of the signal lines (7) and the self-heating lines is 1.
5. The perforation, testing and electrical submersible pump drainage tripled process according to claim 1, characterized in that the other end of the signal line (7) is connected to a monitoring pressure gauge (8).
6. The perforation, testing and electrical submersible pump drainage triplex process according to claim 1, wherein the electrical submersible pump unit (17) consists of an electrical submersible motor, a protector, a separator, an electrical submersible pump, an electrical submersible cable, a control cabinet and a transformer.
7. The perforation, testing and electrical submersible pump discharge triplex process according to claim 6, wherein the electrical submersible pump unit (17) or other electrically driven rodless pumps such as a submersible screw pump.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910326979.4A CN111852403A (en) | 2019-04-23 | 2019-04-23 | Perforation, test and electric submersible pump liquid discharge triple-connection operation process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910326979.4A CN111852403A (en) | 2019-04-23 | 2019-04-23 | Perforation, test and electric submersible pump liquid discharge triple-connection operation process |
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|---|---|---|---|---|
| CN1458388A (en) * | 2003-04-27 | 2003-11-26 | 邵志山 | Triple liquid draining system for perforation, formation testing and jet flow pump |
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2019
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Application publication date: 20201030 |