CN111963094B - Cluster pipe two-gas co-production tubular column - Google Patents
Cluster pipe two-gas co-production tubular column Download PDFInfo
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- CN111963094B CN111963094B CN202010933046.4A CN202010933046A CN111963094B CN 111963094 B CN111963094 B CN 111963094B CN 202010933046 A CN202010933046 A CN 202010933046A CN 111963094 B CN111963094 B CN 111963094B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 239000003245 coal Substances 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims description 19
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 5
- 241000521257 Hydrops Species 0.000 claims 2
- 206010030113 Oedema Diseases 0.000 claims 2
- 230000002567 autonomic effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 9
- 238000003795 desorption Methods 0.000 abstract description 7
- 238000005065 mining Methods 0.000 description 9
- 238000010008 shearing Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 241000220259 Raphanus Species 0.000 description 2
- 235000006140 Raphanus sativus var sativus Nutrition 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
- E21B33/047—Casing heads; Suspending casings or tubings in well heads for plural tubing strings
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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
- E21B43/006—Production of coal-bed methane
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- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical & Material Sciences (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides a cluster pipe two-gas co-production string, which comprises: the external four-way joint is arranged at the upper part of the casing and is positioned at the upper end of the large four-way joint of the wellhead, and the external four-way joint is provided with an upper connector, a lower connector, a left connector and a right connector which are communicated with each other; the upper end of the bundling tube penetrates through the external four-way joint through the lower joint, a first bundling inner tube of the bundling tube is positioned at the left joint, a second bundling inner tube of the bundling tube is positioned at the right joint, a connecting channel is formed between the upper end of the bundling tube and the external four-way joint, the upper joint is communicated with the lower joint through the connecting channel, and the lower end of the bundling tube penetrates through the top of the sleeve and is positioned in the sleeve; and the cluster pipe gas-lift valve group is arranged on the outer wall of the lower end of the cluster pipe and is positioned in the sleeve. According to the embodiment of the invention, the gas lift liquid drainage is realized by one inlet and one outlet of the first cluster inner pipe and the second cluster inner pipe, so that the desorption of the coal bed is realized, and the collection of the coal bed gas is completed after the desorption. Therefore, the operation cost can be reduced, the single-well yield and the resource utilization rate are improved, and the economic benefit is further improved.
Description
Technical Field
The invention relates to the field of oil and gas exploitation, in particular to a cluster pipe two-gas co-production tubular column.
Background
At present, for the condition that one well contains multiple layers of sandstone or coal seams, the main mining mode in the prior art adopts two modes of multilayer commingled mining and same-well multi-channel mining, wherein the multilayer commingled mining is suitable for the direct commingled mining of a plurality of reservoirs with close pressure coefficients and storage physical properties, and the same-well multi-channel mining is mainly suitable for a plurality of storage sub-mining with larger pressure system difference. For the stratum containing sandstone gas and coal bed gas in the same region, because the pressure system of the stratum is greatly different from that of the stratum and the physical properties of the stratum are greatly different from each other, the main mining mode is to respectively mine by utilizing two wells, and the mining mode has higher production cost and larger occupied area.
Disclosure of Invention
The invention provides a cluster pipe two-gas co-production string, which aims to achieve the purpose of improving the operation efficiency.
The technical scheme adopted by the invention for solving the technical problems is as follows: a cluster pipe two-gas co-production string comprises: the external four-way joint is arranged at the upper part of the casing and is positioned at the upper end of the large four-way joint of the wellhead, and the external four-way joint is provided with an upper connector, a lower connector, a left connector and a right connector which are communicated with each other; the upper end of the bundling tube penetrates through the external four-way joint through the lower joint, a first bundling inner tube of the bundling tube is positioned at the left joint, a second bundling inner tube of the bundling tube is positioned at the right joint, a connecting channel is formed between the upper end of the bundling tube and the external four-way joint, the upper joint is communicated with the lower joint through the connecting channel, and the lower end of the bundling tube penetrates through the top of the sleeve and is positioned in the sleeve; and the cluster pipe gas-lift valve group is arranged on the outer wall of the lower end of the cluster pipe and is positioned in the sleeve.
Further, the first bundling inner tube comprises a first horizontal part and a first vertical part, the first horizontal part is arranged along the horizontal direction and is positioned at the left interface, and the first vertical part is arranged along the vertical direction and is positioned at the lower interface; the second cluster inner tube includes second horizontal part and the vertical portion of second, and the second horizontal part sets up and is located right kneck along the horizontal direction, and the axis of first horizontal part and the axis collineation of second horizontal part, and the vertical portion of second sets up and is located lower joint department along vertical direction, and the axis of first vertical portion is parallel with the axis of the vertical portion of second.
Further, the first horizontal part and the second horizontal part are respectively fixed at the left connector and the right connector through a cluster pipe wellhead shunting device.
Further, the first vertical portion and the second vertical portion are fixed at the lower interface through the bundling tube inner tube fixer.
Furthermore, the two-gas co-production string of the bundling pipe further comprises a sealing hanger which is sealed in the large four-way of the wellhead.
Further, an oil sleeve annulus is formed between the outer wall of the bundling pipe and the inner wall of the sleeve.
Furthermore, an oil sleeve annulus gas recovery port is arranged at the upper end of the sleeve, and the oil sleeve annulus gas recovery port is communicated with the oil sleeve annulus.
Furthermore, the casing pipe is externally provided with a sandstone layer and a coal layer which are arranged at intervals along the vertical direction, the two-gas co-production pipe column of the cluster pipe further comprises a packer which is arranged between the outer wall of the cluster pipe and the inner wall of the casing pipe, and the packer is positioned between the sandstone layer and the coal layer.
Furthermore, the cluster pipe two-gas co-production string further comprises a cluster pipe blanking plug which is arranged at the lower end of the cluster pipe and is positioned between the packer and the coal bed.
Furthermore, the bundling pipe further comprises a bundling outer pipe, the first bundling inner pipe and the second bundling inner pipe are arranged in the bundling inner pipe in a penetrating mode, and the lower end of the first bundling inner pipe and the lower end of the second bundling inner pipe are connected with the inner wall of the bundling outer pipe through a bundling pipe inner fixing sealing piece.
The coal bed gas lift liquid drainage device has the beneficial effects that the gas lift liquid drainage is realized by the way that the first cluster inner pipe and the second cluster inner pipe are in and out at one time, so that the coal bed gas is desorbed, and the collection of the coal bed gas is completed after the desorption. The co-production technology can reduce the drainage and depressurization cost, the drilling cost, the management cost and the operation cost of the coal seam, and improve the yield of a single well and the utilization rate of resources, thereby improving the economic benefit.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 isbase:Sub>A sectional view taken along line A-A of FIG. 1;
fig. 3 is a sectional view taken along line B-B in fig. 1.
Reference numbers in the figures: 1. a four-way is externally connected; 2. a bundling tube annular gas production outlet; 3. a cluster pipe wellhead diverter; 4. a bundling tube inner tube fixer; 5. a sealed hanger; 6. a bundling tube; 7. a cluster pipe gas lift valve bank; 8. a sleeve; 9. a sealing element is fixed in the bundling pipe; 10. a packer; 11. a blanking plug; 12. an air inlet of an inner pipe of the bundling pipe; 13. an air collecting port of the inner pipe of the bundling pipe; 14. an oil sleeve annulus gas recovery port; 15. an oil jacket annulus; 16. a sandstone layer; 17. a coal seam; 21. a hollow portion; 22. a bundling pipe wellhead shunting plug; 61. a connecting channel; 62. a first cluster inner tube; 64. and a second bundling inner tube.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 3, an embodiment of the present invention provides a cluster pipe two-gas co-production string, which includes an external four-way 1, a cluster pipe 6, and a cluster pipe gas-lift valve group 7. The external cross joint 1 is arranged on the upper part of the casing 8 and is positioned at the upper end of the large cross joint of the well head, and the external cross joint 1 is provided with an upper connector, a lower connector, a left connector and a right connector which are communicated with each other. The upper end of the bundling tube 6 is arranged in the external cross joint 1 in a penetrating mode through the lower interface, the first bundling inner tube 62 of the bundling tube 6 is located at the left interface, the second bundling inner tube 64 of the bundling tube 6 is located at the right interface, a connecting channel 61 is formed between the upper end of the bundling tube 6 and the external cross joint 1, the upper interface is communicated with the lower interface through the connecting channel 61, and the lower end of the bundling tube 6 penetrates through the top of the sleeve 8 and is located in the sleeve 8. The cluster pipe gas lift valve group 7 is arranged on the outer wall of the lower end of the cluster pipe 6 and is positioned in the sleeve 8.
In the embodiment of the invention, the gas lift liquid drainage is realized by one inlet and one outlet of the first cluster inner pipe 62 and the second cluster inner pipe 64, so that the desorption of the coal bed is realized, and the collection of the coal bed gas is completed after the desorption. The co-production technology can reduce the drainage and depressurization cost, the drilling cost, the management cost and the operation cost of the coal bed, and improve the yield of a single well and the utilization rate of resources, thereby improving the economic benefit.
As shown in fig. 1, the first bundle inner tube 62 includes a first horizontal portion provided along the horizontal direction and located at the left interface, and a first vertical portion provided along the vertical direction and located at the lower interface; the second cluster inner pipe 64 includes a second horizontal portion and a second vertical portion, the second horizontal portion is disposed along the horizontal direction and located at the right joint, and the axis of the first horizontal portion is collinear with the axis of the second horizontal portion, the second vertical portion is disposed along the vertical direction and located at the lower joint, and the axis of the first vertical portion is parallel to the axis of the second vertical portion.
In this embodiment, the first horizontal portion and the second horizontal portion have the same vertical position, but have openings opposite to the first horizontal portion and the second horizontal portion, and the opening of the first horizontal portion is located at the left interface and serves as the inlet 12 of the inner tube of the bundling tube. The opening of the second horizontal portion is located at the right interface and serves as a cluster pipe inner pipe gas extraction port 13.
Preferably, the first and second horizontal portions are fixed at the left and right interface respectively by a cluster pipe wellhead diverter 3. The bundling pipe wellhead flow-dividing device 3 is used for dividing the upper connector, the left connector and the right connector so as not to interfere with each other. The structure of the cluster pipe wellhead flow dividing device 3 is the same as that in the prior art, and the specific structure is not further described here.
Referring to fig. 1, in the present embodiment, the first upright portion and the second upright portion are disposed at an interval in parallel in the vertical direction, and are both located at the lower interface, and are fixed at their middle portions by a bundle tube fixing device 4, so as to prevent the first upright portion and the second upright portion from moving up and down.
Further, as shown in fig. 2, a bundle pipe wellhead diverting plug 22 is arranged at the top of the first bundle inner pipe 62 and the second bundle inner pipe 64, a hollow part 21 is arranged between the bundle pipe wellhead diverting plug 22 and the external cross joint 1, the hollow part 21 is communicated with the connecting channel 61, and is communicated with the bundle pipe annulus gas production outlet 2 at the upper interface.
The cluster pipe two-gas co-production tubular column further comprises a sealing hanger 5 which is seated in the wellhead large four-way joint, and an oil sleeve annulus 15 is formed between the outer wall of the cluster pipe 6 and the inner wall of the sleeve 8. An oil sleeve annulus gas production port 14 is arranged at the upper end of the sleeve 8, and the oil sleeve annulus gas production port 14 is communicated with an oil sleeve annulus 15. The sealing hanger 5 is used for hanging the bundling pipe 6, and simultaneously seals and isolates the space in the vertical upward direction of the oil sleeve annulus 15, so that the sandstone gas in the oil sleeve annulus 15 can only be collected and discharged by the oil sleeve annulus gas production port 14.
In the embodiment of the invention, the lower end of the bundling tube 6 is externally provided with a bundling tube gas lift valve group 7 which mainly has the following functions: when the sandstone gas cannot be produced upwards in the oil sleeve annulus 15, the oil sleeve annulus 15 is in a liquid accumulation state, an external gas source pressurizes the oil sleeve annulus 15, the cluster pipe gas lift valve group 7 is opened, and the sandstone gas and the liquid accumulation in the oil sleeve annulus 15 enter the connecting channel 61 with a smaller cross section area, so that the aim of continuously and autonomously producing the gas is fulfilled.
The casing 8 is externally provided with a sandstone layer 16 and a coal layer 17 which are arranged at intervals along the vertical direction, the cluster pipe two-gas co-production pipe column further comprises a packer 10 which is arranged between the outer wall of the cluster pipe 6 and the inner wall of the casing 8, and the packer 10 is positioned between the sandstone layer 16 and the coal layer 17, so as to separate the sandstone layer 16 and the coal layer 17 in a shaft in an insulating way.
The cluster pipe two-gas co-production string further comprises a cluster pipe blanking plug 11 which is arranged at the lower end of the cluster pipe 6 and is positioned between the packer 10 and the coal seam 17. When the well is completed, the plug in the cluster pipe plug 11 is positioned above the screen in the cluster pipe plug 11, so that the gas and liquid at the bottom of the well can not enter the cluster pipe 6. Before production, a certain pressure is pumped into the bundling pipe 6, so that the plug in the bundling pipe plug 11 moves into the plug (below the sieve pipe in the bundling pipe plug 11) of the bundling pipe plug 11, and the communication between the coal bed gas and the first bundling inner pipe 62 and the second bundling inner pipe 64 is ensured.
The bundling tube 6 further comprises a bundling outer tube, the first bundling inner tube 62 and the second bundling inner tube 64 are both arranged in the bundling inner tube in a penetrating mode, and the lower end of the first bundling inner tube 62 and the lower end of the second bundling inner tube 64 are both connected with the inner wall of the bundling outer tube through a bundling tube inner fixing sealing piece 9. The fixing sealing element 9 in the bundling pipe is used for fixing the first bundling inner pipe 62 and the second bundling inner pipe 64 and for sealing the connecting channel 61, so as to achieve the purpose of isolating and sealing the coal bed gas and the liquid in the coal bed gas and the connecting channel 61.
Because the bundling tube internal fixing sealing element 9 is arranged, the connection channel 61 and the lower bundling tube blanking plug 11 can be sealed off, and the gas in the oil sleeve annulus 15 can enter the connection channel 61 through the bundling tube gas lift valve group 7 (provided with the communication holes arranged in the radial direction and communicated with the connection channel 61, and the communication holes are in a closed state in a normal state and can be pumped into the gas to be opened through the outside) without mutual interference.
The specific installation steps of the embodiment of the invention are as follows:
1. tools such as a connector, a release, an outer cylinder of a cluster pipe gas-lift valve group 7, a fixed sealing element 9 in the cluster pipe, a cluster pipe outer pipe connecting cylinder, a packer 10, a blanking plug 11 and the like are sequentially arranged at the lower end of the cluster pipe 6, and after the tool lengths are compounded, the coiled tubing and the tools are put into the blowout preventer, and then the blowout preventer is connected with a wellhead;
2. checking each manifold and the gate in sequence, and starting to put in the tool after confirming that the manifold and the gate are correct;
3. after the tool is lowered to a preset depth, starting the suspension and semi-sealing functions of the four-ram blowout preventer, suspending the cluster pipe 6 at a wellhead, releasing pressure at the wellhead after confirming that the semi-seal of the blowout preventer is qualified, and shearing the cluster pipe by using a shearing ram of the blowout preventer;
4. removing the injection head, trimming and straightening the pipe end of the cluster pipe 6 at the wellhead, and installing a heavy-load connector at the trimmed pipe end;
5. trimming and straightening a bundling pipe 6 on the injection head, simultaneously additionally arranging a blowout prevention pipe under the blowout prevention box, arranging a penetrating connector and a radish head-shaped sealing hanger 5 on the bundling pipe 6, and completing the tie-back between a wellhead and a heavy-load connector;
6. the crane slowly lowers the injection head and enables the blowout prevention pipe to be connected with the wellhead, the suspension and half-sealing functions of the blowout preventer are closed, and the bundling pipe 6 is slowly lowered, so that the 'radish chuck' sealing hanger 5 is completely seated in the large four-way of the wellhead;
7. pumping pressure at the inlet end of the bundling pipe 6, and slowly starting the bundling pipe 6, wherein the weight of the bundling pipe 6 is not increased, which indicates successful releasing, closing a wellhead gate valve, and taking out and sending the wellhead decompressed into a tool;
8. shearing the bundling pipe 6 passing through the penetrating connector and the sealing hanger 5, removing the outer pipe, exposing two inner pipes, and installing a bundling pipe wellhead flow dividing device 3;
9. and opening a gate valve of the wellhead, slowly pumping pressure to the cluster pipe 6 of the wellhead, setting the sealing and cutting device, continuing pumping pressure after the sealing and cutting device is set and tested to be qualified, and when the pressure reaches the shearing force of the plug 11, moving the plug to the plug (below a sieve pipe in the cluster pipe plug) of the plug 11, wherein the coal bed is communicated with the cluster pipe.
From this point on, the cluster pipe 6 is successfully run into the well and production is started.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: in the embodiment of the invention, the gas lift liquid drainage is realized by one inlet and one outlet of the first cluster inner pipe 62 and the second cluster inner pipe 64, so that the desorption of the coal bed is realized, and the collection of the coal bed gas is completed after the desorption. The co-production technology can reduce the drainage and depressurization cost, the drilling cost, the management cost and the operation cost of the coal seam, and improve the yield of a single well and the utilization rate of resources, thereby improving the economic benefit.
The above description is only exemplary of the invention and should not be taken as limiting the scope of the invention, so that the invention is intended to cover all modifications and equivalents of the embodiments described herein. In addition, the technical features, the technical schemes and the technical schemes can be freely combined and used.
Claims (7)
1. A cluster pipe two-gas co-production string is characterized by comprising:
the external four-way joint (1) is arranged at the upper part of the casing (8) and is positioned at the upper end of the large four-way joint of the well head, and the external four-way joint (1) is provided with an upper connector, a lower connector, a left connector and a right connector which are communicated with each other;
the upper end of the bundling tube (6) penetrates through the external four-way joint (1) through the lower interface, a first bundling inner tube (62) of the bundling tube (6) is located at the left interface, a second bundling inner tube (64) of the bundling tube (6) is located at the right interface, a connecting channel (61) is formed between the upper end of the bundling tube (6) and the external four-way joint (1), the upper interface is communicated with the lower interface through the connecting channel (61), and the lower end of the bundling tube (6) penetrates through the top of the sleeve (8) and is located in the sleeve (8); the bundling tube (6) also comprises a bundling outer tube, and a first bundling inner tube (62) and a second bundling inner tube (64) are arranged in the bundling outer tube in a penetrating manner; the lower end of the first bundling inner tube (62) and the lower end of the second bundling inner tube (64) are connected with the inner wall of the bundling outer tube through a bundling tube inner fixed sealing element (9);
the cluster pipe gas-lift valve group (7) is arranged on the outer wall of the lower end of the cluster pipe (6) and is positioned in the sleeve (8);
an oil sleeve annulus (15) is formed between the outer wall of the bundling tube (6) and the inner wall of the sleeve (8); the gas in the air of the oil jacket ring can be communicated with the connecting channel (61) through a bundling pipe gas lift valve group (7);
an oil sleeve annulus gas recovery port (14) is arranged at the upper end of the sleeve (8), and the oil sleeve annulus gas recovery port (14) is communicated with an oil sleeve annulus (15);
when sandstone gas can't be at the oil jacket annular space (15) during the autonomic output that makes progress, oil jacket annular space (15) are in the hydrops state, and external air supply is through suppressing to oil jacket annular space (15), and bundling pipe gas lift valves (7) are opened, and sandstone gas and hydrops get into in the connecting channel (61) in oil jacket annular space (15).
2. The bundled tube two gas co-production string as claimed in claim 1,
the first bundling inner tube (62) comprises a first horizontal part and a first vertical part, the first horizontal part is arranged along the horizontal direction and is positioned at the left interface, and the first vertical part is arranged along the vertical direction and is positioned at the lower interface;
the second inner tube of gathering a bundle (64) includes second horizontal part and the vertical portion of second, the second horizontal part sets up and is located along the horizontal direction right side interface department, just the axis of first horizontal part with the axis collineation of second horizontal part, the vertical portion of second sets up and is located along vertical direction lower interface department, just the axis of first vertical portion with the axis of the vertical portion of second is parallel.
3. A bundled tube two gas co-production string as claimed in claim 2, characterised in that the first and second horizontal portions are secured at the left and right interface respectively by a bundled tube wellhead diverting arrangement (3).
4. The bundled tube two gas co-production string as claimed in claim 2, wherein the first upright portion and the second upright portion are secured to the lower junction by a bundled tube inner tube retainer (4).
5. The bundled tube two gas co-production tubing string as claimed in claim 1 further comprising a seal hanger (5) seated within the wellhead large cross.
6. The bundled tube two-gas co-production string as claimed in claim 1, wherein the casing (8) is externally provided with a sandstone layer (16) and a coal layer (17) which are arranged at intervals along the vertical direction, the bundled tube two-gas co-production string further comprises a packer (10) which is arranged between the outer wall of the bundled tube (6) and the inner wall of the casing (8), and the packer (10) is positioned between the sandstone layer (16) and the coal layer (17).
7. The bundled tube two-gas co-production string as claimed in claim 6, further comprising a bundled tube packer (11) arranged at the lower end of the bundled tube (6) and located between the packer (10) and the coal seam (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010933046.4A CN111963094B (en) | 2020-09-08 | 2020-09-08 | Cluster pipe two-gas co-production tubular column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010933046.4A CN111963094B (en) | 2020-09-08 | 2020-09-08 | Cluster pipe two-gas co-production tubular column |
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| Publication Number | Publication Date |
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| CN111963094A CN111963094A (en) | 2020-11-20 |
| CN111963094B true CN111963094B (en) | 2022-11-01 |
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| CN202010933046.4A Active CN111963094B (en) | 2020-09-08 | 2020-09-08 | Cluster pipe two-gas co-production tubular column |
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| CN113389530A (en) * | 2021-08-04 | 2021-09-14 | 北京中海沃邦能源投资有限公司石楼分公司 | Two-gas simultaneous production pipe column for deep reservoir and ground flow |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2342094Y (en) * | 1998-06-25 | 1999-10-06 | 中国海洋石油渤海公司 | Wellhead device for pumping and injecting at the same well |
| US6454010B1 (en) * | 2000-06-01 | 2002-09-24 | Pan Canadian Petroleum Limited | Well production apparatus and method |
| CN2665354Y (en) * | 2001-05-17 | 2004-12-22 | 新疆石油管理局采油工艺研究院 | Dual tubing heat extraction wellhead |
| CN201087714Y (en) * | 2007-09-20 | 2008-07-16 | 江苏金石油气井口科技有限公司 | Double-oil tube well mouth device |
| CN201802338U (en) * | 2010-05-12 | 2011-04-20 | 中国石油天然气股份有限公司 | Double-pipe oil extraction wellhead device for branch horizontal well |
| US9038728B1 (en) * | 2011-06-14 | 2015-05-26 | Trendsetter Engineering, Inc. | System and method for diverting fluids from a wellhead by using a modified horizontal christmas tree |
| CN202250010U (en) * | 2011-09-20 | 2012-05-30 | 中国石油天然气股份有限公司 | Injection-production integrated double-pipe thermal production wellhead device |
| CN202500540U (en) * | 2011-12-30 | 2012-10-24 | 中国石油天然气股份有限公司 | Three-way injection-production wellhead device |
| RU2651677C1 (en) * | 2014-07-10 | 2018-04-23 | Халлибертон Энерджи Сервисез, Инк. | Multi-shaft connection assembly for smart well completion |
| CN104389544A (en) * | 2014-11-18 | 2015-03-04 | 江苏双辉机械制造有限公司 | Reducing dual tubing oil recovery wellhead casing head |
| CN104989314B (en) * | 2015-06-12 | 2017-10-20 | 美钻能源科技(上海)有限公司 | Mud line production tree and its installation method under water |
| CN205400656U (en) * | 2016-03-02 | 2016-07-27 | 克拉玛依市昌达机械有限责任公司 | Operation or dual -purpose type wellhead assembly of annular testing are pressed to area |
| CN207315289U (en) * | 2017-09-08 | 2018-05-04 | 中国石油天然气股份有限公司 | Double-pipe thermal recovery wellhead device |
| CN207715122U (en) * | 2018-01-10 | 2018-08-10 | 盐城市琪航石油机械有限公司 | Diplopore horizontal christmas tree wellhead assembly |
| CN209195329U (en) * | 2018-11-12 | 2019-08-02 | 中国石油天然气股份有限公司 | Wellhead equipment |
| CN110656908A (en) * | 2019-10-08 | 2020-01-07 | 中国石油集团渤海石油装备制造有限公司 | All-metal sealed double-pipe steam injection wellhead device for inclined shaft |
| CN111188592B (en) * | 2019-12-12 | 2021-11-26 | 中国石油化工股份有限公司 | Fixed pulley suspension type single-well multi-pump balanced load low-power-consumption lifting system and method |
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2020
- 2020-09-08 CN CN202010933046.4A patent/CN111963094B/en active Active
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Effective date of registration: 20221228 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: PetroChina Company Limited Patentee after: CNPC ENGINEERING TECHNOLOGY R & D Co.,Ltd. Patentee after: CNPC JIANGHAN MACHINERY RESEARCH INSTITUTE Co.,Ltd. Patentee after: BEIJING PETROLEUM MACHINERY Co.,Ltd. Address before: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee before: PetroChina Company Limited Patentee before: CNPC ENGINEERING TECHNOLOGY R & D Co.,Ltd. Patentee before: CNPC JIANGHAN MACHINERY RESEARCH INSTITUTE Co.,Ltd. |