CN116220631A - Electric submersible pump production test vertical pipe system at top of underwater Christmas tree - Google Patents
Electric submersible pump production test vertical pipe system at top of underwater Christmas tree Download PDFInfo
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- CN116220631A CN116220631A CN202310032729.6A CN202310032729A CN116220631A CN 116220631 A CN116220631 A CN 116220631A CN 202310032729 A CN202310032729 A CN 202310032729A CN 116220631 A CN116220631 A CN 116220631A
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- submersible pump
- electric submersible
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- christmas tree
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 62
- 238000012360 testing method Methods 0.000 title claims abstract description 56
- 241000191291 Abies alba Species 0.000 title claims abstract description 41
- 238000009434 installation Methods 0.000 claims abstract description 29
- 230000001012 protector Effects 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 4
- 239000013535 sea water Substances 0.000 claims description 3
- 239000003129 oil well Substances 0.000 abstract description 8
- 238000011161 development Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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
- E21B43/12—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
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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)
- Earth Drilling (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an electric submersible pump production test riser system at the top of an underwater Christmas tree, which comprises an underwater Christmas tree device, a production and test riser and an electric submersible pump device; the underwater christmas tree device is arranged above the underwater wellhead device, the production and test stand pipe comprises an outer layer drill rod, an underwater sleeve and an inner layer oil pipe, the lower end of the underwater sleeve is arranged at the top of the underwater christmas tree through a release device, the inner layer oil pipe is arranged inside the outer layer drill rod and the underwater sleeve, and the lower end of the inner layer oil pipe is suspended with the electric submersible pump device. The electric submersible pump is arranged in the underwater sleeve at the top of the underwater christmas tree, the high-voltage power cable can be directly provided for the electric submersible pump from the installation operation platform, the electric submersible pump is started immediately to perform oil well test, valuable actual measurement information of the oil reservoir can be obtained as soon as possible, risks caused by the uncertainty of the oil reservoir can be reduced as possible, and the high-efficiency development scheme of the whole oil field can be further formulated or optimized according to the risk, so that the uncertainty of the technical scheme can be reduced.
Description
Technical Field
The invention relates to an electric submersible pump production test vertical pipe system at the top of an underwater Christmas tree, and belongs to the technical field of underwater oil gas exploitation.
Background
The electric submersible pump of an underwater oil well is usually installed at the bottom of a tubing string in the oil well below a mud line, and because the prior art does not have the capability of directly providing a high-voltage power cable from an installation platform to the electric submersible pump in the oil well (because the prior art uses a hydraulic control installation string to run into the tubing string once, the top of the tubing string is a tubing hanger and the bottom of the tubing string is the electric submersible pump. Thus, well testing often requires waiting several months before the high voltage power cable of the long distance electric submersible pump can be run to start the electric submersible pump to deliver the oil flow to the production platform for testing, resulting in lengthy well testing cycles.
On the other hand, the average service life of the electric submersible pump is about 3-4 years, and as the electric submersible pump is arranged in a shaft below a mud line, once the electric submersible pump fails and needs to be replaced, the deepwater drilling platform is required to be used again to lift the oil production tubing hanger and the whole oil production tubing string for major well repair. The comprehensive daily cost of the deepwater drilling platform is about 100 ten thousand gold meters, 7-15 days are needed for completing the large well repairing operation of one-time electric submersible pump replacement depending on different water depths, and about 700-1500 ten thousand gold is consumed, so that the operation cost of replacing the electric submersible pump in the shaft by starting an oil outlet pipe column is extremely high, and the economy of the development of the deepwater oil-gas field is seriously affected.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides an electric submersible pump production test riser system at the top of an underwater Christmas tree, which aims to realize independent and separable installation and recovery of the electric submersible pump and a tubing hanger by installing the electric submersible pump inside a test and production riser at the top of the underwater Christmas tree.
In order to achieve the above purpose, the present invention adopts the following technical scheme: an electric submersible pump production test riser system at the top of an underwater Christmas tree comprises an underwater Christmas tree device, a production and test riser and an electric submersible pump device; the underwater Christmas tree device is arranged above the underwater wellhead device and comprises an underwater Christmas tree, a tubing head and a tubing hanger; the underwater Christmas tree is arranged above the underwater wellhead device through the tubing head, and the tubing hanger is arranged inside the tubing head; the production and test stand pipe comprises an outer layer drill pipe, a submerged sleeve and an inner layer oil pipe, wherein the upper end of the outer layer drill pipe is connected with the installation operation platform, the lower end of the outer layer drill pipe is connected with the upper end of the submerged sleeve, and the outer layer drill pipe is used for isolating seawater and lowering the submerged sleeve to the top of the underwater christmas tree; the lower end of the underwater sleeve is arranged at the top of the underwater Christmas tree through the tripping device, and the tripping device is configured to provide a tripping function of the underwater sleeve and the underwater Christmas tree; the inner layer oil pipe is arranged inside the outer layer drill pipe and the underwater sleeve, the upper end of the inner layer oil pipe is connected with the installation operation platform, and the lower end of the inner layer oil pipe is hung with the electric submersible pump device; the oil pipe hanger, the underwater Christmas tree and the disengaging device are internally provided with a production channel and an annular channel which are coaxially arranged; the electric submersible pump device comprises an electric submersible pump group, a motor protector, a motor and a high-voltage power cable, wherein the electric submersible pump group, the motor protector and the motor are suspended at the lower end of the inner-layer oil pipe from top to bottom, and the high-voltage power cable is arranged on the outer wall of the inner-layer oil pipe, is connected with the inner-layer oil pipe in a descending mode and is connected to the motor.
The electric submersible pump production test riser system preferably further comprises a control cable and an annular hose, wherein the control cable is used for connecting the underwater Christmas tree and the disconnecting device with the installation operation platform, and the annular hose is used for connecting an annular passage of the tubing hanger, the underwater Christmas tree and the disconnecting device with the installation operation platform.
In the production testing vertical pipe system of the electric submersible pump, preferably, a production main valve and a production swabbing valve are arranged in a production channel of the underwater Christmas tree, and an annulus main valve and an annulus swabbing valve are arranged in an annulus channel of the underwater Christmas tree.
In the electric submersible pump production test riser system, preferably, a retention valve is arranged in a production channel of the disengaging device, and an annulus access valve is arranged in an annulus channel of the disengaging device.
The electric submersible pump production test riser system preferably has an annulus isolation valve disposed within an annulus passage located in the tubing head.
The electric submersible pump production test riser system is preferably provided with a blowout prevention valve in the inner layer oil pipe.
The electric submersible pump production test vertical pipe system is characterized in that preferably, the upper end of the outer layer drill pipe is connected with the installation work platform sequentially through a rotating ring and an upper flexible joint, and the lower end of the underwater sleeve is connected with the release device through a lower flexible joint.
In the electric submersible pump production test riser system, preferably, the outer layer drill pipe is further connected with the installation work platform through a tensioning and heave compensation system and a tension rope, so that the outer layer drill pipe and the inner layer oil pipe are ensured to be in a vertical static state.
Due to the adoption of the technical scheme, the invention has the following advantages:
1. the electric submersible pump is arranged in the underwater sleeve at the top of the underwater christmas tree, the high-voltage power cable can be directly provided for the electric submersible pump from the installation operation platform, the electric submersible pump is started immediately to perform oil well test, valuable actual measurement information of the oil reservoir can be obtained as soon as possible, risks caused by the uncertainty of the oil reservoir can be reduced as possible, and the high-efficiency development scheme of the whole oil field can be further formulated or optimized according to the risk, so that the uncertainty of the technical scheme can be reduced.
2. When the electric submersible pump fails, the electric submersible pump can be directly started from the top of the christmas tree, the electric submersible pump has the advantage of quick replacement of the failed electric submersible pump, can save 50% -70% of operation cost at most, and has good economical efficiency.
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 invention and do not constitute a undue limitation of the invention, as illustrated in the figures in which:
FIG. 1 is a schematic diagram of an electrical submersible pump production test riser system provided in accordance with one embodiment of the invention;
FIG. 2 is a schematic illustration of the tubing head of the present invention after installation to a subsea wellhead;
FIG. 3 is a schematic illustration of the tubing hanger of the present invention mounted inside a tubing head;
FIG. 4 is a schematic view of the subsea tree of the present invention after it is installed on top of a tubing head;
FIG. 5 is a schematic view of the present invention after the sub-water casing and outer drill pipe are installed on top of the subsea tree;
fig. 6 is a schematic view of the electric submersible pump assembly of the present invention mounted to a submersible sleeve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the system or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Moreover, the use of the terms first, second, etc. to define elements is merely for convenience in distinguishing the elements from each other, and the terms are not specifically meant to indicate or imply relative importance unless otherwise indicated.
In the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "disposed," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The invention provides an electric submersible pump production test riser system at the top of an underwater Christmas tree, which comprises an underwater Christmas tree device, a production and test riser and an electric submersible pump device; the underwater christmas tree device is arranged above the underwater wellhead device, the production and test stand pipe comprises an outer layer drill rod, an underwater sleeve and an inner layer oil pipe, the lower end of the underwater sleeve is arranged at the top of the underwater christmas tree through a release device, the inner layer oil pipe is arranged inside the outer layer drill rod and the underwater sleeve, and the lower end of the inner layer oil pipe is suspended with the electric submersible pump device. The electric submersible pump is arranged in the underwater sleeve at the top of the underwater christmas tree, the high-voltage power cable can be directly provided for the electric submersible pump from the installation operation platform, the electric submersible pump is started immediately to perform oil well test, valuable actual measurement information of the oil reservoir can be obtained as soon as possible, risks caused by the uncertainty of the oil reservoir can be reduced as possible, and the high-efficiency development scheme of the whole oil field can be further formulated or optimized according to the risk, so that the uncertainty of the technical scheme can be reduced.
The following describes in detail an electric submersible pump production test riser system at the top of a subsea tree according to an embodiment of the present invention with reference to the accompanying drawings.
As shown in fig. 1, the electric submersible pump production test riser system at the top of the subsea tree provided by the invention comprises a subsea tree device 1, a production and test riser 2 and an electric submersible pump device 3.
Wherein the subsea tree device is mounted above the subsea wellhead device 4, the subsea tree device comprising a subsea tree 101, a tubing head 102 and a tubing hanger 103. Subsea tree 101 is mounted above subsea wellhead 4 by tubing head 102, and tubing hanger 103 is mounted inside tubing head 102.
The production and test stand pipe 2 comprises an outer layer drill pipe 201, a submerged sleeve 202 and an inner layer oil pipe 203, wherein the upper end of the outer layer drill pipe 201 is connected with the installation operation platform 5, the lower end of the outer layer drill pipe 201 is connected with the upper end of the submerged sleeve 202, the outer layer drill pipe 201 is used for isolating seawater, and the submerged sleeve 202 is lowered to the top of the underwater christmas tree 101; the lower end of the in-water casing 102 is mounted on top of the subsea tree 101 by a tripping device 6, the tripping device 6 being configured to provide a tripping function of the in-water casing 202 and the subsea tree 101 to avoid damaging the production and test riser 2 when the installation work platform 5 is accidentally deviated from a predetermined central position to a large angle; the inner layer oil pipe 203 is arranged inside the outer layer drill pipe 201 and the underwater sleeve 202, the upper end of the inner layer oil pipe 203 is connected with the installation operation platform 5, and the lower end of the inner layer oil pipe 203 is hung with the electric submersible pump device 3. The tubing hanger 103, subsea tree 101 and trip unit 6 are internally formed with coaxially disposed production passage a and annulus passage b.
The electric submersible pump device 3 comprises an electric submersible pump group 301, a motor protector 302, a motor 303 and a high-voltage power cable 304, wherein the electric submersible pump group 301, the motor protector 302 and the motor 303 are suspended at the lower end of the inner-layer oil pipe 203 from top to bottom, and the high-voltage power cable 304 is arranged on the outer wall of the inner-layer oil pipe 203, is lowered together with the inner-layer oil pipe 203 and is connected to the motor 303. Through the arrangement, the electric submersible pump production test riser system has the function of immediately starting the electric submersible pump device 3 to perform oil well test, and oil flows through the electric submersible pump device 3 to be lifted to the inner layer oil pipe 203 and the installation operation platform 5 for production test and treatment; when the electric submersible pump device 3 fails and needs to be replaced, the inner layer oil pipe 203 is lifted out, and the electric submersible pump device 3 can be replaced quickly.
In the above embodiment, preferably, the subsea tree device 1 further comprises a control cable 104 and an annulus hose 105, wherein the control cable 104 is used for connecting the subsea tree 101 and the release device 6 with the installation work platform 5, so as to control the valve of the subsea tree 101 and the valve and release function of the release device 6; an annulus hose 105 is used to connect tubing hanger 103, subsea tree 101, and annulus passage b of disconnect 6 with installation work platform 5 to provide circulation and pressure testing functions, among other functions.
In the above embodiment, it is preferable that the production main valve F1 and the production swabbing valve F2 are provided in the production passage a located in the subsea tree 101, while the annulus main valve F3 and the annulus swabbing valve F4 are provided in the annulus passage b located in the subsea tree 101. With the above arrangement, a 2-way safety barrier is formed in the production passage a of the subsea tree 101 by the production master valve F1 and the production swab valve F2, while a 2-way safety barrier is formed in the annulus passage b of the subsea tree 101 by the annulus master valve F3 and the annulus swab valve F4.
In the above embodiment, it is preferable that the retention valve F5 is provided in the production passage a of the trip device 6, while the annulus access valve F6 is provided in the annulus passage b of the trip device 6. Through the arrangement, the retention valve F5 can be used for isolating crude oil in the vertical pipe when the vertical pipe is produced and tested, and preventing the crude oil from leaking to the marine polluted environment; the annulus access valve F6 closes the 1-way safety barrier in the annulus passage b providing the trip apparatus 6 when no service is required and opens to allow oil to flow through the annulus hose 105 into the annulus passage b when circulation and pressure testing operations are required.
In the above embodiment, it is preferred that an annulus isolation valve F7 is provided within the annulus passage b of the tubing head 102. With the arrangement described above, the annulus isolation valve F7 closes the 1-way safety barrier in the annulus passage b of the tubing head 102 when no service is required and opens to allow oil to flow through the annulus hose 105 into the annulus passage b when circulation and pressure testing operations are required.
In the above embodiment, it is preferable that the blowout prevention valve F8 is provided in the inner oil pipe 203. Through the above arrangement, after the electric submersible pump 301, the motor protector 302 and the motor 303 are installed in place, the blowout prevention valve F8 is closed to isolate the lower portion of the inner oil pipe 203, so as to be used for pressure testing of the testing equipment connected with the inner oil pipe 203 on the installation work platform 5, and if the testing is successful, the condition for starting the electric submersible pump device 3 to perform oil well testing is provided.
In the above embodiment, the upper end of the outer drill pipe 201 is preferably connected to the installation work platform 5 through the rotary ring 7 and the upper flexible joint 8 in sequence, and the lower end of the underwater sleeve 202 is connected to the release device 6 through the lower flexible joint 9. By the above arrangement, it is possible to allow a certain deflection angle of outer drill pipe 201 and in-water casing 202 with installation work platform 5 and release device 6.
In the above embodiment, outer drill pipe 201 is also preferably connected to installation work platform 5 via tensioning and heave compensation system 10 and tension lines 11 to ensure that outer drill pipe 201 and inner tubing 203 are in a vertically stationary state.
The invention provides an electric submersible pump production test riser system at the top of an underwater Christmas tree, which comprises the following specific processes:
s100, a tubing head 102 is lowered to the top of the underwater wellhead 4 (shown in figure 2);
s200, a tubing hanger 103 is lowered into the tubing head 102 (shown in FIG. 3);
s300, launching the subsurface tree 101 to the top of the tubing head 102 (as shown in FIG. 4);
s400, a release device 6, a lower flexible joint 9, a underwater sleeve 202, an outer drill rod 201, a tensioning and heave compensation system 10, a tensioning rope 11, a rotating ring 7 and an upper flexible joint 8 are sequentially arranged, and the outer drill rod 201 and the underwater sleeve 202 are in a vertical static state by means of the tensioning and heave compensation system 10. After the components are installed in place, a control cable 104 is run to a point I and connected to the subsea tree 101; in addition, the drop-in annulus hose 105 is connected to the trip unit 6 to point II, providing circulation and pressure testing functions (as shown in fig. 5);
s500, a motor 303, a motor protector 302, an electric submersible pump group 301 and an inner oil pipe 203 are sequentially arranged inside the outer drill pipe 201 and the underwater sleeve 202. After the above components are in place, a high voltage power cable 304 is run and connected to the motor 303, thereby providing conditions for immediately starting the submersible pump assembly 3 for well production testing (as shown in fig. 6).
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. An electric submersible pump production test riser system at the top of an underwater Christmas tree is characterized by comprising an underwater Christmas tree device, a production and test riser and an electric submersible pump device;
the underwater Christmas tree device is arranged above the underwater wellhead device and comprises an underwater Christmas tree, a tubing head and a tubing hanger; the underwater Christmas tree is arranged above the underwater wellhead device through the tubing head, and the tubing hanger is arranged inside the tubing head;
the production and test stand pipe comprises an outer layer drill pipe, a submerged sleeve and an inner layer oil pipe, wherein the upper end of the outer layer drill pipe is connected with the installation operation platform, the lower end of the outer layer drill pipe is connected with the upper end of the submerged sleeve, and the outer layer drill pipe is used for isolating seawater and lowering the submerged sleeve to the top of the underwater christmas tree; the lower end of the underwater sleeve is arranged at the top of the underwater Christmas tree through the tripping device, and the tripping device is configured to provide a tripping function of the underwater sleeve and the underwater Christmas tree; the inner layer oil pipe is arranged inside the outer layer drill pipe and the underwater sleeve, the upper end of the inner layer oil pipe is connected with the installation operation platform, and the lower end of the inner layer oil pipe is hung with the electric submersible pump device; the oil pipe hanger, the underwater Christmas tree and the disengaging device are internally provided with a production channel and an annular channel which are coaxially arranged;
the electric submersible pump device comprises an electric submersible pump group, a motor protector, a motor and a high-voltage power cable, wherein the electric submersible pump group, the motor protector and the motor are suspended at the lower end of the inner-layer oil pipe from top to bottom, and the high-voltage power cable is arranged on the outer wall of the inner-layer oil pipe, is connected with the inner-layer oil pipe in a descending mode and is connected to the motor.
2. The electric submersible pump production test riser system of claim 1, wherein the subsea tree device further comprises a control cable for connecting the subsea tree and the disconnect device to the installation work platform, and an annulus hose for connecting an annulus passage of the tubing hanger, subsea tree and disconnect device to the installation work platform.
3. The electric submersible pump production test riser system of claim 1, wherein a production master valve and a production swab valve are disposed within a production passage located in the subsea tree, while an annulus master valve and an annulus swab valve are disposed within an annulus passage located in the subsea tree.
4. The electric submersible pump production test riser system of claim 1, wherein a hold-up valve is disposed within a production passage located in the trip device, while an annulus access valve is disposed within an annulus passage located in the trip device.
5. The electric submersible pump production test riser system of claim 1, wherein an annulus isolation valve is disposed within an annulus passage located in the tubing head.
6. The electric submersible pump production test riser system of claim 1, wherein a blowout preventer is disposed within the inner tubing.
7. An electric submersible pump production test riser system according to any one of claims 1 to 6, wherein the upper end of the outer drill pipe is connected to the installation work platform sequentially via a swivel and an upper flexible joint, and the lower end of the submersible sleeve is connected to the tripping device via a lower flexible joint.
8. An electric submersible pump production test riser system according to any one of claims 1 to 6, wherein the outer drill pipe is further connected to the installation work platform by a tensioning and heave compensation system and a tensioning line to ensure that the outer drill pipe and inner tubing are in a vertically stationary state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310032729.6A CN116220631A (en) | 2023-01-10 | 2023-01-10 | Electric submersible pump production test vertical pipe system at top of underwater Christmas tree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310032729.6A CN116220631A (en) | 2023-01-10 | 2023-01-10 | Electric submersible pump production test vertical pipe system at top of underwater Christmas tree |
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| Publication Number | Publication Date |
|---|---|
| CN116220631A true CN116220631A (en) | 2023-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310032729.6A Pending CN116220631A (en) | 2023-01-10 | 2023-01-10 | Electric submersible pump production test vertical pipe system at top of underwater Christmas tree |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116220631A (en) |
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2023
- 2023-01-10 CN CN202310032729.6A patent/CN116220631A/en active Pending
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