CN110878684A - Water drainage gas production device - Google Patents
Water drainage gas production device Download PDFInfo
- Publication number
- CN110878684A CN110878684A CN201811040839.2A CN201811040839A CN110878684A CN 110878684 A CN110878684 A CN 110878684A CN 201811040839 A CN201811040839 A CN 201811040839A CN 110878684 A CN110878684 A CN 110878684A
- Authority
- CN
- China
- Prior art keywords
- pipe
- sealing
- wall
- jet pump
- oil pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 238000007789 sealing Methods 0.000 claims abstract description 128
- 238000011084 recovery Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 2
- 239000007788 liquid Substances 0.000 abstract description 12
- 239000003209 petroleum derivative Substances 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
- F04F5/10—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing liquids, e.g. containing solids, or liquids and elastic fluids
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
The invention discloses a water drainage and gas production device, and belongs to the field of petroleum gas exploitation. The device comprises: a packer coupled to the casing; the outer layer tail pipe and the sealing barrel are connected with the packer, and the sealing pipe and the eccentric jet pump are connected with the sealing barrel; the outer oil pipe, the tail pipe, the upper inner oil pipe and the lower inner oil pipe are connected with the eccentric jet pump; a short communicating pipe connected with the tail pipe of the eccentric jet pump; a seal ring connected with the short communicating pipe; a central tail pipe connected with the sealing ring and a long communicating pipe. The device is applicable to vertical wells, horizontal wells and inclined wells through an eccentric jet pump without moving parts; the eccentric jet pump has high liquid discharge strength and is suitable for wells with large or small water discharge; the gas is discharged to the ground through the long communicating pipe, the upper inner layer oil pipe and the lower inner layer oil pipe; so that the device has wide application range.
Description
Technical Field
The invention relates to the field of petroleum gas exploitation, in particular to a water drainage and gas production device.
Background
Along with the development of the petroleum gas exploitation technology, petroleum gas is continuously exploited, in the later stage of the petroleum gas exploitation, the liquid level gradually rises when the stratum produces water, the gas in the gas layer cannot be exhausted due to the back pressure generated by the height of the liquid column, at the moment, the liquid at the bottom of the well needs to be exhausted, the height of the liquid level is reduced, and the back pressure generated by the liquid column is reduced, so that the gas is separated out, and the gas production of the gas well is recovered. Therefore, how to design a water drainage and gas production device capable of recovering gas production of a gas well becomes a very interesting problem for people in the field of petroleum gas exploitation.
At present, the technologies of water drainage and gas production mainly comprise a sucker-rod pump, a screw pump, an electric submersible pump, a plunger gas lift, a thin tube water-carrying process measure tubular column and the like, and the process measure tubular columns have strict use conditions in the field implementation process: the sucker-rod pump process measure tubular column and the screw pump process measure tubular column are only suitable for a vertical well; the electric submersible pump process measure tubular column is only suitable for wells with large water discharge; the column is suitable for oil and gas well with certain gas flow.
The related art has at least the following problems:
the application of the drainage and gas production technology is limited greatly due to the strict implementation conditions.
Disclosure of Invention
The embodiment of the invention provides a drainage gas production device, which aims to solve the problem of large application limitation of the related technology. The technical scheme is as follows:
a water drainage gas recovery device, comprising: the device comprises a casing, an outer layer oil pipe, an eccentric jet pump tail pipe, a short communicating pipe, a packer, an outer layer tail pipe, a central tail pipe, a long communicating pipe, a sealing barrel, a sealing ring, an upper inner layer oil pipe and a lower inner layer oil pipe.
An annular channel is arranged between the sleeve and the outer oil pipe, and the sleeve is connected with the outer wall of the packer; two ends of the inner wall of the packer are respectively connected with the outer layer tail pipe and the sealing barrel;
the outer oil pipe is connected with the upper end of the outer wall of the eccentric jet pump; the lower end of the outer wall of the eccentric jet pump is connected with the sealing cylinder, and the upper end and the lower end of the inner wall of the eccentric jet pump are respectively connected with the upper inner-layer oil pipe and the lower inner-layer oil pipe;
the lower end of the lower inner oil pipe is connected with the upper end of the sealing ring; the lower end of the sealing ring is connected with the upper end of the central tail pipe; the outer wall of the central tail pipe is connected with the inner wall of the sealing pipe 0, and the outer wall of the sealing pipe 0 is connected with the inner wall of the sealing cylinder; the long communicating pipe penetrates through the sealing ring, and the lower end of the long communicating pipe is communicated with a gas inlet on the central tail pipe;
the upper end of the tail pipe of the eccentric jet pump is connected with the eccentric jet pump, and the lower end of the tail pipe of the eccentric jet pump is connected with the upper end of the short communicating pipe; the lower end of the short communicating pipe is connected with the sealing ring.
Optionally, the drainage gas production device further comprises a single ball seat;
the single ball seat is connected with the lower end of the central tail pipe.
Optionally, the single ball seat comprises a ball seat, a ball valve and a ball cover;
the ball valve is located on the ball seat, and the ball cover is located on the upper portion of the ball valve and connected with the ball seat.
Optionally, the eccentric jet pump includes a pump barrel, a pump core and a pump port;
the eccentric jet pump tail pipe is connected with the pump barrel, and the pump core and the pump opening are located on the pump barrel and communicated with the eccentric jet pump tail pipe.
Optionally, the outer wall of the lower end of the pump core is provided with a first sealing groove;
a first sealing rubber ring is arranged in the first sealing groove.
Optionally, a second sealing groove is formed in the outer wall of the upper end of the short communicating pipe;
and a second sealing rubber ring is arranged in the second sealing groove.
Optionally, a third sealing groove is formed in the outer wall of the upper end of the central tail pipe;
and a third sealing rubber ring is arranged in the third sealing groove.
Optionally, a fourth sealing groove is formed in the outer wall of the sealing pipe;
and a fourth sealing rubber ring is arranged in the fourth sealing groove.
Optionally, a fifth sealing groove is formed in the outer wall of the lower end of the upper inner layer oil pipe;
and a fifth sealing rubber ring is arranged in the fifth sealing groove.
Optionally, the inner diameters of the long communicating pipe, the upper inner layer oil pipe and the lower inner layer oil pipe are preset values.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
power fluid is injected through a fluid channel formed by the outer-layer oil pipe, the upper-layer oil pipe, the lower-layer oil pipe, the sealing barrel and the sealing pipe, so that the eccentric jet pump generates negative pressure, water produced by the gas layer flows through an annular space formed by the central tail pipe and the long communicating pipe, then flows through the short communicating pipe and the tail pipe of the eccentric jet pump to enter the eccentric jet pump, and then enters the fluid channel between the outer-layer oil pipe and the sleeve pipe to return. Gas enters the long communicating pipe from a gas inlet on the central tail pipe and then is discharged to the ground through the lower inner layer oil pipe and the upper inner layer oil pipe.
The device is applicable to vertical wells, horizontal wells and inclined wells through an eccentric jet pump without moving parts; the eccentric jet pump has high liquid discharge strength and is suitable for wells with large or small water discharge; the gas is discharged to the ground through the long communicating pipe, the upper inner layer oil pipe and the lower inner layer oil pipe; so that the device has wide application range.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a drainage gas production device provided by an embodiment of the invention;
fig. 2 is a schematic structural diagram of another water drainage and gas production device provided by the embodiment of the invention.
Wherein reference numerals in the drawings are introduced as follows:
1 casing pipe, 2 outer oil pipes, 3 eccentric jet pumps, 4 eccentric jet pump tail pipes, 5 short communicating pipes, 6 packers, 7 outer tail pipes, 8 center tail pipes, 9 long communicating pipes, 10 sealing pipes, 11 sealing cylinders, 12 sealing rings, 13 upper inner oil pipes, 14 lower inner oil pipes and 15 single ball seats.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
An embodiment of the present invention provides a drainage gas production device, and referring to fig. 1, the device includes: the device comprises a casing 1, an outer layer oil pipe 2, an eccentric jet pump 3, an eccentric jet pump tail pipe 4, a short communicating pipe 5, a packer 6, an outer layer tail pipe 7, a central tail pipe 8, a long communicating pipe 9, a sealing pipe 10, a sealing barrel 11, a sealing ring 12, an upper layer oil pipe 13 and a lower layer oil pipe 14.
An annular channel is arranged between the casing 1 and the outer layer oil pipe 2, and the casing 1 is connected with the outer wall of the packer 6; two ends of the inner wall of the packer 6 are respectively connected with the outer layer tail pipe 7 and the sealing barrel 11;
the outer oil pipe 2 is connected with the upper end of the outer wall of the eccentric jet pump 3; the lower end of the outer wall of the eccentric jet pump 3 is connected with the sealing cylinder 11, and the upper end and the lower end of the inner wall of the eccentric jet pump 3 are respectively connected with an upper inner oil pipe 13 and a lower inner oil pipe 14;
the lower end of the lower inner oil pipe 14 is connected with the upper end of the sealing ring 12; the lower end of the sealing ring 12 is connected with the upper end of the central tail pipe 8; the outer wall of the central tail pipe 8 is connected with the inner wall of a sealing pipe 10, and the outer wall of the sealing pipe 10 is connected with the inner wall of a sealing barrel 11; the long communicating pipe 9 passes through the sealing ring 12, and the lower end of the long communicating pipe is communicated with a gas inlet on the central tail pipe 8;
the upper end of a tail pipe 4 of the eccentric jet pump is connected with the eccentric jet pump 3, and the lower end of the tail pipe 4 of the eccentric jet pump is connected with the upper end of a short communicating pipe 5; the lower end of the short communicating pipe 5 is connected with a sealing ring 11.
Optionally, an annular passage is provided between the casing 1 and the outer oil pipe 2. The inner wall of the casing pipe 1 and the outer wall of the packer 6 are in detachable sealing connection through threads, the lower end of the inner wall of the packer 6 and the upper end of the outer wall of the outer tail pipe 7 are in detachable connection through threads, and the upper end of the inner wall of the packer 6 and the lower end of the outer wall of the sealing barrel 11 are in detachable connection through threads.
The lower end of the inner wall of the outer oil pipe 2 is detachably connected with the upper end of the outer wall of the eccentric jet pump 3 through threads, and the lower end of the outer wall of the eccentric jet pump 3 is detachably connected with the upper end of the inner wall of the sealing barrel 11 through threads; the upper end of the inner wall of the eccentric jet pump 3 is hermetically connected with the lower end of the outer wall of the upper inner-layer oil pipe 13, and the lower end of the inner wall of the eccentric jet pump 3 is detachably connected with the lower inner-layer oil pipe 14 through threads.
The lower end of the inner wall of the lower inner oil pipe 14 is detachably connected with the upper end of the outer wall of the sealing ring 12 through threads; the lower end of the outer wall of the sealing ring 12 is detachably connected with the upper end of the inner wall of the central tail pipe 8 through threads; the outer wall of the central tail pipe 8 is hermetically connected with the inner wall of a sealing pipe 10, and the outer wall of the sealing pipe 10 is hermetically connected with the inner wall of a sealing cylinder 11; the long communicating pipe 9 penetrates through the center of the sealing ring 12 and is welded with the sealing ring 12 in a sealing mode, and the lower end port of the long communicating pipe 9 is communicated with a gas inlet on the central tail pipe 8.
The lower end face of the eccentric jet pump 3 is provided with a through hole connected with the tail pipe 4 of the eccentric jet pump, the tail pipe 4 of the eccentric jet pump is detachably connected with the eccentric jet pump 3 through threads, and the lower end of the outer wall of the tail pipe 4 of the eccentric jet pump is hermetically connected with the upper end of the inner wall of the short communicating pipe 5; the side wall of the sealing ring 11 is provided with a through hole, and the lower end of the short communicating pipe 5 is detachably connected with the sealing ring 11 through threads.
Power fluid is injected through a fluid passage formed by the outer oil pipe 2, the upper inner oil pipe 13, the lower inner oil pipe 14, the sealing barrel 11 and the sealing pipe 10, so that the eccentric jet pump 3 connected between the outer oil pipe 2 and the sealing barrel 11 generates negative pressure to pump water produced by an air layer; the water in the air layer passes through an annular space formed by the central tail pipe 8 and the long communicating pipe 9, then flows through the short communicating pipe 5 and the eccentric jet pump tail pipe 4 to enter the eccentric jet pump 3 and then returns out from the liquid channel. Gas enters the long communicating pipe 9 from a gas inlet on the central tail pipe 8 and then is discharged to the ground through the lower inner layer oil pipe 14 and the upper inner layer oil pipe 13.
Power fluid is injected through a fluid channel formed by the outer-layer oil pipe, the upper-layer oil pipe, the lower-layer oil pipe, the sealing barrel and the sealing pipe, so that the eccentric jet pump generates negative pressure, water produced by the gas layer flows through an annular space formed by the central tail pipe and the long communicating pipe, then flows through the short communicating pipe and the tail pipe of the eccentric jet pump to enter the eccentric jet pump, and then enters the fluid channel between the outer-layer oil pipe and the sleeve pipe to return. Gas enters the long communicating pipe from a gas inlet on the central tail pipe and then is discharged to the ground through the lower inner layer oil pipe and the upper inner layer oil pipe.
The device is applicable to vertical wells, horizontal wells and inclined wells through an eccentric jet pump without moving parts; the eccentric jet pump has high liquid discharge strength and is suitable for wells with large or small water discharge; the gas is discharged to the ground through the long communicating pipe, the upper inner layer oil pipe and the lower inner layer oil pipe; so that the device has wide application range.
Referring to fig. 2, in an alternative embodiment, the drainage and gas production device further comprises a single ball seat 15;
the outer wall of the upper end of the single ball seat 15 is detachably connected with the inner wall of the lower end of the central tail pipe 8 through threads.
In an alternative embodiment, the single ball seat 16 includes a ball seat, a ball valve, and a ball cover;
wherein, the ball valve is located on the ball seat, and the ball cover is located ball valve upper portion and links to each other with the ball seat.
In an alternative embodiment, the eccentric jet pump 3 comprises a pump barrel, a pump core and a pump port;
the tail pipe 4 of the eccentric jet pump is connected with the pump barrel, and the pump core and the pump opening are positioned on the pump barrel and communicated with the tail pipe 4 of the eccentric jet pump.
Optionally, the outer wall of the lower end of the pump core is provided with a first sealing groove, so that the sealing effect is further ensured;
a first sealing rubber ring is arranged in the first sealing groove, so that the pump cylinder is connected with the pump core in a sealing mode.
In an optional embodiment, the outer wall of the upper end of the short communicating pipe 5 is provided with a second sealing groove;
and a second sealing rubber ring is arranged in the second sealing groove, so that the short communicating pipe 5 is in sealing connection with the tail pipe 4 of the eccentric jet pump.
In an alternative embodiment, the outer wall of the upper end of the central tail pipe 8 is provided with a third sealing groove;
and a third sealing rubber ring is arranged in the third sealing groove, so that the central tail pipe 8 is connected with the sealing pipe 10 in a sealing way.
In an alternative embodiment, the outer wall of the sealing tube 10 has a fourth sealing groove;
and a fourth sealing rubber ring is arranged in the fourth sealing groove, so that the sealing tube 10 is in sealing connection with the sealing barrel 11.
In an alternative embodiment, the outer wall of the lower end of the upper inner oil pipe 13 is provided with a fifth sealing groove;
and a fifth sealing rubber ring is arranged in the fifth sealing groove, so that the upper inner layer oil pipe 13 is in sealing connection with the eccentric jet pump 3.
The inner diameters of the long communicating pipe, the upper inner layer oil pipe and the lower inner layer oil pipe are preset values, and the effect of water drainage and gas production is further guaranteed.
For example, the preset value is 24mm (millimeter) -40 mm, that is, the inner diameters of the long communicating pipe, the upper inner layer oil pipe and the lower inner layer oil pipe are all any values between 24 mm-40 mm, which is not limited in this embodiment of the present invention.
Power fluid is injected through a fluid passage formed by the outer oil pipe 2, the upper inner oil pipe 13, the lower inner oil pipe 14, the sealing barrel 11 and the sealing pipe 10, so that the eccentric jet pump 3 connected between the outer oil pipe 2 and the sealing barrel 11 generates negative pressure to pump water produced by an air layer; the water in the gas layer enters the annular space formed by the central tail pipe 8 and the long communicating pipe 9 through the single ball seat 15, then flows through the short communicating pipe 5 and the eccentric jet pump tail pipe 4 to enter the eccentric jet pump 3 and returns out from the liquid channel. Gas enters the long communicating pipe 9 from a gas inlet on the central tail pipe 8 and then is discharged to the ground through the lower inner oil pipe 14 and the upper inner oil pipe 13, the inner diameters of the long communicating pipe 9, the upper inner oil pipe 13 and the lower inner oil pipe 14 are all set within a preset range, the gas flow rate is high, and water separated out from a gas layer can be discharged to the ground in the flowing process. The components are detachably connected through threads. The sealing performance between each component is ensured through the sealing groove and the sealing rubber ring.
The device is applicable to vertical wells, horizontal wells and inclined wells through an eccentric jet pump without moving parts; the eccentric jet pump has high liquid discharge strength and is suitable for wells with large or small water discharge; so that the device has wide application range. By placing the single ball seat below the gas bed bottom boundary, liquid-gas gravity separation is enabled and liquid back pressure is avoided. The detachable connection through the thread enables each part to be convenient to mount, dismount and maintain. The sealing performance among all parts is enhanced through the sealing grooves and the sealing rubber rings, and the drainage and gas recovery effects of the device are improved.
The eccentric jet pump generates negative pressure to pump water produced by the air layer to a certain amount, the back pressure of the air layer is reduced, the ground can not provide power hydraulic pressure any more, the air self-spray enters the long communicating pipe through the air inlet and is discharged to the ground through the lower inner oil pipe and the upper inner oil pipe, and the energy consumption is reduced to achieve the energy-saving purpose. Through all setting up long communicating pipe, upper strata oil pipe and lower inlayer oil pipe's internal diameter in predetermineeing the within range, the hosepipe that separates out the gas blanket at gas flow's in-process goes out ground, has further strengthened the effect of drainage gas production for the device's application scope is wider.
All the above optional technical solutions may be combined arbitrarily to form the optional embodiments of the present disclosure, and are not described herein again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A water drainage gas recovery device, characterized in that the water drainage gas recovery device comprises: the device comprises a casing (1), an outer layer oil pipe (2), an eccentric jet pump (3), an eccentric jet pump tail pipe (4), a short communicating pipe (5), a packer (6), an outer layer tail pipe (7), a central tail pipe (8), a long communicating pipe (9), a sealing pipe (10), a sealing barrel (11), a sealing ring (12), an upper inner layer oil pipe (13) and a lower inner layer oil pipe (14);
an annular channel is arranged between the casing (1) and the outer oil pipe (2), and the casing (1) is connected with the outer wall of the packer (6); two ends of the inner wall of the packer (6) are respectively connected with the outer layer tail pipe (7) and the sealing barrel (11);
the outer oil pipe (2) is connected with the upper end of the outer wall of the eccentric jet pump (3); the lower end of the outer wall of the eccentric jet pump (3) is connected with the sealing barrel (11), and the upper end and the lower end of the inner wall of the eccentric jet pump (3) are respectively connected with the upper inner-layer oil pipe (13) and the lower inner-layer oil pipe (14);
the lower end of the lower inner layer oil pipe (14) is connected with the upper end of the sealing ring (12); the lower end of the sealing ring (12) is connected with the upper end of the central tail pipe (8); the outer wall of the central tail pipe (8) is connected with the inner wall of the sealing pipe (10), and the outer wall of the sealing pipe (10) is connected with the inner wall of the sealing barrel (11); the long communicating pipe (9) penetrates through the sealing ring (12) and the lower end of the long communicating pipe is communicated with a gas inlet on the central tail pipe (8);
the upper end of a tail pipe (4) of the eccentric jet pump is connected with the eccentric jet pump (3), and the lower end of the tail pipe (4) of the eccentric jet pump is connected with the upper end of the short communicating pipe (5); the lower end of the short communicating pipe (5) is connected with the sealing ring (12).
2. A water drainage gas production installation according to claim 1, characterized in that it further comprises a single ball seat (15);
the single ball seat (15) is connected with the lower end of the central tail pipe (8).
3. A water drainage gas production installation according to claim 2, wherein the single ball seat (15) comprises a ball seat, a ball valve and a ball cover;
the ball valve is located on the ball seat, and the ball cover is located on the upper portion of the ball valve and connected with the ball seat.
4. A water and gas drainage and production device according to claim 1, wherein the eccentric jet pump (3) comprises a pump cylinder, a pump core and a pump port;
the eccentric jet pump tail pipe (4) is connected with the pump barrel, and the pump core and the pump opening are located on the pump barrel and communicated with the eccentric jet pump tail pipe (4).
5. The water drainage and gas production device according to claim 4, wherein the outer wall of the lower end of the pump core is provided with a first sealing groove;
a first sealing rubber ring is arranged in the first sealing groove.
6. The water drainage and gas production device according to any one of claims 1 to 5, wherein the outer wall of the upper end of the short communicating pipe (5) is provided with a second sealing groove;
and a second sealing rubber ring is arranged in the second sealing groove.
7. A water and gas drainage and production device according to any one of claims 1 to 5, wherein the outer wall of the upper end of the central tail pipe (8) is provided with a third sealing groove;
and a third sealing rubber ring is arranged in the third sealing groove.
8. A water and gas drainage and production device according to any one of claims 1 to 5, wherein the outer wall of the sealing pipe (10) is provided with a fourth sealing groove;
and a fourth sealing rubber ring is arranged in the fourth sealing groove.
9. A water drainage and gas production device according to any one of claims 1 to 5, wherein the outer wall of the lower end of the upper inner oil pipe (13) is provided with a fifth sealing groove;
and a fifth sealing rubber ring is arranged in the fifth sealing groove.
10. A water drainage and gas production device according to any one of claims 1 to 5, wherein the inner diameters of the long communicating pipe (9), the upper inner layer oil pipe (13) and the lower inner layer oil pipe (14) are preset values.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811040839.2A CN110878684A (en) | 2018-09-06 | 2018-09-06 | Water drainage gas production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811040839.2A CN110878684A (en) | 2018-09-06 | 2018-09-06 | Water drainage gas production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110878684A true CN110878684A (en) | 2020-03-13 |
Family
ID=69727261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811040839.2A Pending CN110878684A (en) | 2018-09-06 | 2018-09-06 | Water drainage gas production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110878684A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040134653A1 (en) * | 2001-05-21 | 2004-07-15 | Khomynets Zinoviy Dmitrievich | Method and operation of a well jet device inkwell testing and development and the well jet device for carrying out said method |
| CN103670336A (en) * | 2012-09-18 | 2014-03-26 | 中国石油天然气股份有限公司 | Middle-shallow layer gas well liquid drainage process pipe column and liquid drainage method |
| CN206554901U (en) * | 2017-01-03 | 2017-10-13 | 中国石油天然气股份有限公司 | Water drainage gas production device |
| CN206626027U (en) * | 2016-12-20 | 2017-11-10 | 中矿瑞杰(北京)科技有限公司 | Direct circulation contra-injection jet pump |
| CN207296957U (en) * | 2017-08-30 | 2018-05-01 | 中联煤层气有限责任公司 | A kind of two gas are total to device for picking |
| CN207568570U (en) * | 2017-01-03 | 2018-07-03 | 中国石油天然气股份有限公司 | Water drainage gas production device |
-
2018
- 2018-09-06 CN CN201811040839.2A patent/CN110878684A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040134653A1 (en) * | 2001-05-21 | 2004-07-15 | Khomynets Zinoviy Dmitrievich | Method and operation of a well jet device inkwell testing and development and the well jet device for carrying out said method |
| CN103670336A (en) * | 2012-09-18 | 2014-03-26 | 中国石油天然气股份有限公司 | Middle-shallow layer gas well liquid drainage process pipe column and liquid drainage method |
| CN206626027U (en) * | 2016-12-20 | 2017-11-10 | 中矿瑞杰(北京)科技有限公司 | Direct circulation contra-injection jet pump |
| CN206554901U (en) * | 2017-01-03 | 2017-10-13 | 中国石油天然气股份有限公司 | Water drainage gas production device |
| CN207568570U (en) * | 2017-01-03 | 2018-07-03 | 中国石油天然气股份有限公司 | Water drainage gas production device |
| CN207296957U (en) * | 2017-08-30 | 2018-05-01 | 中联煤层气有限责任公司 | A kind of two gas are total to device for picking |
Non-Patent Citations (3)
| Title |
|---|
| 刘升贵等: "《沁水盆地煤层气水平井增产机理及排采实践》", 31 March 2017, 煤炭工业出版社 * |
| 杨川东: "《采气工程》", 31 August 1997, 石油工业出版社 * |
| 肖钢 等: "《煤层气 浪子变宠儿》", 30 November 2013, 武汉大学出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11506033B2 (en) | Oil extraction and gas production method capable of in-situ sand control and removal by downhole hydraulic lift | |
| CN207093047U (en) | Negative pressure-gas lift oil production pipe column | |
| CN103541887B (en) | Sand-proof and gas-proof integrated oil production device | |
| CN203285416U (en) | Downhole oil-water separation device of double electric submersible pump | |
| CN210217698U (en) | Three-layer oil well sucker-rod pump oil production and water production reinjection pipe column | |
| CN203516027U (en) | Sand-proof and gas-proof integrated oil production device | |
| CN108071365A (en) | Coal bed gas production, drainage and water injection integrated tubular column | |
| CN108071376B (en) | Injection and production string in coal-bed gas well | |
| CN203394450U (en) | High-pressure throwing and fishing type eccentric gas lift working barrel | |
| CN103806882B (en) | Liquid method and device is adopted in a kind of gaslift | |
| CN107829708A (en) | Multipurpose ball-and-seat | |
| CN203879719U (en) | Integrated gas injecting and oil extracting pump | |
| CN206522127U (en) | Oily-water seperating equipment under the applicable surface drive screw pump wells of single packer pipe string | |
| CN110878684A (en) | Water drainage gas production device | |
| CN213775335U (en) | Underground gas-liquid separation lifting device | |
| CN212406690U (en) | High-gas-content well sucker-rod pump lifting effect-improving device and process pipe column | |
| RU165135U1 (en) | SUBMERSIBLE PUMP INSTALLATION | |
| CN205089285U (en) | Prevent flowing backward control valve and layering and prevent flowing backward combination tubular column with adopting | |
| CN111980640B (en) | Three-layer oil well sucker-rod pump oil extraction and water production reinjection pipe column and use method | |
| CN209959179U (en) | Exhaust pipe column for deep pumping process | |
| CN203640970U (en) | Underground hydraulic piston pump | |
| CN107939361B (en) | Foam liquid discharge oil production string and method for oil pumping well | |
| CN204402413U (en) | A kind of hydraulic pulse generator | |
| CN111021999B (en) | Liquid drainage and gas production integrated pipe column | |
| CN207526429U (en) | A kind of venthole screen casing adopted based on superficial part coal bed gas and the conjunction of high pressure tight gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200313 |
|
| RJ01 | Rejection of invention patent application after publication |