CN113513290A - Same well reinjection water drainage gas production method and pipe column - Google Patents

Same well reinjection water drainage gas production method and pipe column Download PDF

Info

Publication number
CN113513290A
CN113513290A CN202010272834.3A CN202010272834A CN113513290A CN 113513290 A CN113513290 A CN 113513290A CN 202010272834 A CN202010272834 A CN 202010272834A CN 113513290 A CN113513290 A CN 113513290A
Authority
CN
China
Prior art keywords
layer
reinjection
gas
liquid level
level switch
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.)
Granted
Application number
CN202010272834.3A
Other languages
Chinese (zh)
Other versions
CN113513290B (en
Inventor
岳慧
何祖清
吴俊霞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Chemical Corp
Sinopec Research Institute of Petroleum Engineering
Original Assignee
China Petroleum and Chemical Corp
Sinopec Research Institute of Petroleum Engineering
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Petroleum and Chemical Corp, Sinopec Research Institute of Petroleum Engineering filed Critical China Petroleum and Chemical Corp
Priority to CN202010272834.3A priority Critical patent/CN113513290B/en
Publication of CN113513290A publication Critical patent/CN113513290A/en
Application granted granted Critical
Publication of CN113513290B publication Critical patent/CN113513290B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B34/00Valve arrangements for boreholes or wells
    • E21B34/06Valve arrangements for boreholes or wells in wells

Landscapes

  • 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)
  • Pipe Accessories (AREA)

Abstract

The invention relates to a same well reinjection drainage gas production method and a tubular column. Under the working condition that the water and gas production layer is positioned below the reinjection layer, the inserting pipe sealing cylinder and the bridge type joint are sequentially connected below the oil pipe, and at least one side below the inserting pipe sealing cylinder is provided with an opening communicated with the water and gas production layer through the bridge type joint; a lower packer is set between the cannula sealing cylinder and the sleeve and used for packing the reinjection layer and the water and gas production layer; the liquid level switch valve is positioned in the water-gas producing layer. According to the invention, water produced by the gas formation is directly injected into the low-pressure formation, so that the ground treatment is not required, the water production energy is not required to be consumed, and no extra operating cost is required; the liquid level in the well can be always kept at the lowest state, so that the gas layer productivity can be exerted to the utmost extent.

Description

Same well reinjection water drainage gas production method and pipe column
Technical Field
The invention relates to the field of petroleum engineering gas production, in particular to a water drainage gas production method and a pipe column.
Background
In the gas reservoir exploitation process, the water produced by the stratum is flooded, so that the production pressure difference of the gas layer is reduced, and the yield of the gas layer is reduced. At present, measures such as foam drainage assistance, a speed pipe, a plunger gas lift, pumping and the like are adopted to conduct drainage and gas production, the technology is relatively mature, and the aims of the technology are to drain water stored at the bottom of a well to the ground, reduce the pressure at the bottom of the well and recover the yield of a gas layer. However, various drainage and gas production processes generally consume energy, increase investment and operation costs, and are not environment-friendly.
In view of the above, the present invention provides a method and a tubular column for gas recovery by reinjection and drainage in the same well, which can be applied to a suitable reinjection layer to achieve gas recovery without draining water to the ground, and can reduce the cost or investment of drainage consumption to the maximum extent, reduce the influence of flooding on the productivity to the maximum extent, and greatly improve the production potential of the gas layer.
Disclosure of Invention
The invention aims to provide a gas production method by reinjection in the same well and a tubular column, which directly inject water produced by a gas layer into a low-pressure layer in the well and do not discharge the water to the ground, thereby reducing the cost or investment of water drainage consumption to the maximum extent and improving the production potential of the gas layer to the maximum extent.
In order to achieve the purpose, the invention provides a same-well reinjection drainage gas production pipe column which is applied to the working condition that a reinjection layer is positioned below a water and gas production layer, and the pipe column comprises: an oil pipe, a sleeve, an upper packer, a liquid level switch valve and a lower packer,
the oil pipe is concentrically arranged in the casing pipe, the periphery of the oil pipe close to the lower part is sealed and isolated from the casing pipe through an upper packer,
the liquid level switch valve is located inside the casing pipe, below the oil pipe and located in the reinjection layer, the periphery of the liquid level switch valve and the casing pipe are sealed through a lower packer, and the lower packer is used for sealing the reinjection layer and the water and gas production layer.
The same well reinjection drainage gas production pipe column is characterized in that the liquid level switch valve comprises a valve seat and a hollow ball located above the valve seat.
The same well reinjection drainage gas production tubular column, wherein, the liquid level switch valve still includes the spring, the lower extreme of spring is fixed in the disk seat, and the clean shot is located the upper end of spring.
The invention also provides a same-well reinjection drainage gas production method, which adopts the same-well reinjection drainage gas production pipe column applied to the working condition that the reinjection layer is positioned below the water and gas production layer, and comprises the following steps:
(1) running a sleeve;
(2) a lower packer and a liquid level switch valve are put into the sleeve, and the lower packer is sealed between a gas layer and a reinjection layer;
(3) and (4) putting the upper packer and the oil pipe into the casing, and setting the upper packer in a gas layer.
The invention also provides a same-well reinjection drainage gas production pipe column which is applied to the working condition that a water and gas production layer is positioned below a reinjection layer, wherein the pipe column comprises: an oil pipe, a sleeve, a liquid level switch valve, a lower packer, an insertion pipe sealing cylinder and a bridge type joint,
the oil pipe is concentrically arranged inside the casing pipe;
an insertion pipe is connected below the oil pipe, an insertion pipe sealing barrel is inserted below the insertion pipe, a bridge type joint is connected below the insertion pipe sealing barrel, and at least one side below the insertion pipe sealing barrel is provided with an opening communicated with a water gas production layer through the bridge type joint;
a lower packer is set between the cannula sealing cylinder and the sleeve and used for sealing and isolating a reinjection layer and a water-gas producing layer;
the liquid level switch valve is located inside the sleeve, below the oil pipe and in a water-gas producing layer, and the liquid level switch valve is located below the bridge type joint and communicated with the sleeve.
The co-well reinjection drainage gas production string is characterized in that the liquid level switch valve is provided with a valve core, a valve body and a liquid hole, the valve body is a hollow annular valve body and is sleeved on the valve core, and the liquid hole is located on the valve core and is opened or closed by the valve body.
The same well reinjection drainage gas production pipe column is characterized in that a stop structure is arranged below the valve body on the valve core.
The same well reinjection drainage gas production string is characterized in that the periphery of the oil pipe and the sleeve are sealed through an upper packer.
The invention also provides a same-well reinjection drainage gas recovery method, which is applied to a same-well reinjection drainage gas recovery pipe column of a working condition that a water and gas producing layer is positioned below a reinjection layer, wherein the method comprises the following steps:
(1) running a sleeve;
(2) the lower packer, the intubation tube sealing cylinder, the bridge joint and the liquid level switch valve are put into a sleeve, the lower packer is sealed between a gas layer and a reinjection layer, and the liquid level switch valve is positioned below the gas layer;
(3) the oil pipe and the insertion pipe are put into the sleeve, and the insertion pipe is inserted into the insertion pipe sealing cylinder to form sealing.
And (3) putting an upper packer in the step, wherein the upper packer is positioned between the oil pipe and the casing pipe.
In conclusion, the beneficial effects of the invention are as follows:
(1) according to the invention, water produced by the gas formation is directly injected into the low-pressure formation, so that the ground treatment is not required, the water production energy is not required to be consumed, and no extra operating cost is required;
(2) the invention can always maintain the liquid level in the well at the lowest state, thereby leading the gas layer productivity to be brought into full play.
Drawings
FIG. 1 is a schematic diagram of an upper-injection lower-drainage gas production string when the liquid level is higher than a liquid level switch valve;
FIG. 2 is a schematic view of the upper-injection lower-drainage gas production pipe column when the liquid level is lower than the liquid level switch valve;
FIG. 3 is a schematic diagram of the bottom-injection, top-drainage and gas production string when the liquid level is higher than the liquid level switch valve;
FIG. 4 is a schematic view of a lower-mining-lower-upper-drainage gas production string when the liquid level is lower than a liquid level switch valve;
figure 5 is a cross-sectional view of the cannula sealing cartridge and bridge fitting in a configuration for producing a lower-lower drainage gas production string.
Description of reference numerals:
1-extracting an upper injection and lower drainage pipe column; 11-an oil pipe; 12-a sleeve; 13-setting a packer; 14-a liquid level switch valve; 141-valve seat; 142-a hollow sphere; 143-a spring; 15-lower packer;
2-the mining bottom is poured into a drainage pipe column; 21-oil pipe; 22-a sleeve; 23-setting a packer; 24-a liquid level switch valve; 25-lower packer; 26-a cannula; 27-cannula sealing cylinder; 28-bridge type joint.
Detailed Description
The invention will be further explained with reference to the drawings.
In order to solve the problems of excessive accumulated liquid and water production of the gas well shaft and the stratum near the bottom of the well, the selection of the reinjection layer is also important besides the reinjection layer (namely a low-pressure water layer) is injected with underground accumulated liquid by adopting the same-well reinjection water drainage gas production method and the pipe column provided by the invention. Specifically, the reinjection layer is selected mainly from the stratum with low formation pressure, good permeability, thick formation thickness and stable interlayer of the gas layer. The stratum pressure of the reinjection layer is lower than the pressure of the gas layer, and meanwhile, the permeability is good, so that the water produced by the gas layer can conveniently flow into the reinjection layer; the stratum is thick, so that a large space is reserved for storing reinjection water; and the gas layer has the purpose of stabilizing the interlayer so as to prevent the interlayer from communicating with the gas layer, thereby causing ineffective reinjection. The specific stratum selection needs to be combined with the water body size, physical parameters and the like for simulation calculation, and the technology is very mature in the field of oil reservoir engineering.
The same well reinjection comprises an upper production and lower injection and a lower production and lower injection according to the position relation of the reinjection layer and the water and gas producing layer, wherein the upper production and lower injection is the water and gas producing layer which is positioned above the reinjection layer, and the lower production and lower injection is the water and gas producing layer which is positioned below the reinjection layer.
Based on the knowledge in the field, the invention provides a method for producing gas by reinjecting, draining and gas in the same well and a tubular column.
First embodiment
The first embodiment is directed to a condition where the reinjection layer is located below the water and gas producing formation. According to the figure 1 and the figure 2, the upper pouring and lower discharging water gas production pipe column is respectively shown in the schematic view when the liquid level is higher than and lower than the liquid level switch valve. The tubular column in the first embodiment is a top-injection bottom-drainage gas production tubular column 1, which mainly comprises: tubing 11, casing 12, upper packer 13, level switch valve 14, and lower packer 15.
The oil pipe 11 is concentrically arranged inside the casing 12, and the periphery of the oil pipe 11 close to the lower part is sealed off from the casing 12 through an upper packer 13.
The liquid level switch valve 14 is positioned inside the casing 12 and below the oil pipe 11, and the periphery of the liquid level switch valve 14 is sealed off from the casing 12 through a lower packer 15.
Wherein, the packer seals off the gas layer and the reinjection layer, the liquid level switch valve 14 is a switch for controlling the reinjection layer, and the pipe column above the gas layer is a conventional gas production pipe column.
Wherein, the liquid level switch valve 14 comprises a valve seat 141 and a hollow ball 142 positioned above the valve seat 141. The liquid level switch valve is used for controlling the liquid level to be automatically opened and closed, and the principle is that the liquid level switch valve is controlled to be opened and closed by utilizing the buoyancy difference of liquid and gas to the hollow ball. As shown in FIG. 1, when the hollow sphere 142 of the liquid level switch valve 14 is submerged by liquid, the valve body is kept in an open state by the buoyancy, when the liquid level drops, the hollow sphere 142 loses the buoyancy when being in gas, and the hollow sphere drops under the action of gravity and falls on the sealing conical surface of the valve seat 142, so that the liquid level switch valve 14 is closed, as shown in FIG. 2.
The specific design of the liquid level switch valve can be determined according to the density and pressure of the liquid, the volume and weight of the hollow ball, and the spring 143 can be used to adjust the force if necessary. Specifically, the lower end of the spring 143 is fixed in the valve seat 141, and the hollow ball 142 is seated on the upper end (free end) of the spring 143. The spring is used for balancing and adjusting the difference value of buoyancy, valve ball gravity and pressure.
Second embodiment
A second embodiment is directed to a gas recovery method using a top-injection bottom-injection drainage gas recovery string, comprising the steps of:
(1) running the casing 12;
(2) a lower packer 15 and a liquid level switch valve 14 are put into the casing 12, and the lower packer 15 is set between a gas layer and a reinjection layer;
(3) an upper packer 13 is lowered into the casing 12 along with the tubing 11, the upper packer 13 being set in the gas zone.
The working principle of the embodiment is as follows: the upper packer 13 and the lower packer 15 are used for packing a gas layer and a reinjection layer, the liquid level switch valve 14 is used for controlling the switch of the reinjection layer, and the pipe column above the gas layer is a conventional gas production pipe column. Water in the gas layer enters a shaft along with gas, the gas is naturally separated under the action of gravity, the gas enters the oil pipe 12 upwards to be extracted from the ground, the water automatically flows downwards into a reinjection layer (the pressure of the reinjection layer is lower than the pressure of the gas layer) at the lower part, when the liquid level is lower than the liquid level switch valve 14, the hollow ball 142 is free from the action of buoyancy, the elastic part 143 is pressed downwards under the action of gravity until the hollow ball 143 seals the valve seat 141, namely, the liquid level switch valve 14 is automatically closed, and the gas is prevented from entering the reinjection layer to cause waste (as shown in fig. 2). When the liquid level rises above the liquid level switch valve 14 due to water production of the gas layer, the hollow ball 142 floats upwards under the action of buoyancy, and the liquid level switch valve 14 is automatically opened, so that the liquid level in the shaft is kept at a lower level, the production pressure difference of the gas layer can be kept to the maximum, and the potential of the gas layer can be exerted to the maximum.
Third embodiment
The third embodiment is directed to the case where the reinjection layer is located above the water-gas producing formation. Referring to fig. 3-5, there are shown schematic diagrams of the production lower drainage and gas production string at liquid levels above and below the liquid level switch valve, and cross-sectional views of the cannula sealing cylinder and bridge fitting, respectively. The tubular column in the third embodiment is a bottom-injection, top-drainage and gas production tubular column 2, which mainly comprises: tubing 21, casing 22, upper packer 23, fluid level switch valve 24, lower packer 25, cannula 26, cannula seal cartridge 27, and bridge sub 28.
The oil pipe 21 is concentrically arranged inside the casing 22. The cannula 26 is connected below the oil pipe 21, the cannula sealing cylinder 27 is inserted below the cannula 26, the bridge joint 28 is connected below the cannula sealing cylinder 27, the bridge joint 28 enables at least one side below the cannula sealing cylinder 27 to be provided with an opening 281, and gas in a water gas production layer sequentially enters the cannula sealing cylinder 27, the cannula 26 and the oil pipe 21 through the bridge joint 28.
And a lower packer 25 is set between the cannula sealing cylinder 27 and the casing 22 and is used for sealing a reinjection layer and a water gas production layer.
The level switch valve 24 is located below the bridge fitting and communicates with the sleeve 22. Specifically, the liquid level switch valve 24 has a valve core 241, a valve body 242 and a liquid hole 243, wherein the valve body 242 is a hollow annular valve body and is sleeved on the valve core 241. When the liquid level in the well bore is kept at a high level, so that the valve body 242 is submerged in the liquid, the valve body 242 is kept in an open state (the liquid hole 243 is opened) by buoyancy, and when the liquid level in the well bore is kept at a low level, the valve body 242 is exposed to the gas, so that the valve body 242 descends under the action of gravity, and the fluid passage is closed (the liquid hole 243 is closed).
Preferably, a stop structure (not shown) is arranged on the valve core 241 below the valve body 242, and when the valve body 242 descends to a certain height, the stop structure is limited, so that the valve body 242 is prevented from being separated from the valve core 241.
The specific design of the liquid level switch valve can be determined according to the density and pressure of the liquid, the volume and the weight of the valve body.
More preferably, the outer circumference of tubing 21 is sealed off from casing 22 by an upper packer 23.
Fourth embodiment
A fourth embodiment is directed to a gas production method using a bottom injection, top drainage, gas production string, comprising the steps of:
(1) running the casing 22;
(2) setting the lower packer 25 together with the cannula sealing cylinder 27, the bridge joint 28 and the liquid level switch valve 24 into the casing 22, setting the lower packer 25 between the gas layer and the reinjection layer, and enabling the liquid level switch valve 24 to be positioned below the gas layer;
(3) the tubing 21 and cannula 26 are lowered into the cannula 22 and the cannula 26 is inserted into the cannula sealing barrel 27 to form a seal.
Preferably, an upper packer 23 is run in at step (3), with the upper packer 23 being located between tubing 21 and casing 22 (optionally upper packer 23 may be eliminated).
The working principle of the embodiment is as follows: the lower packer 25 seals the gas layer and the reinjection layer, water in the gas layer enters the sleeve along with gas, the gas is naturally separated under the action of gravity, the gas sequentially enters the insertion pipe sealing cylinder 27, the insertion pipe 26 and the oil pipe 22 through the bridge type joint 28, then the ground is mined, the water in the gas layer is deposited at the bottom of the well under the action of gravity, and the water downwards enters the reinjection layer through the liquid level switch valve 24 under the action of the pressure difference between the production layer and the reinjection layer (the pressure of the reinjection layer is lower than that of the gas layer). The bridge fitting 28 has a cannula sealing cylinder 27, a cannula sealing cylinder 27 and a cannula 26 cooperating to form a seal. The bridge fitting functions to intersect the gas and water flow paths without interference. The liquid level switch valve 24 is used to allow water to pass through without allowing gas to pass through, so that the liquid level in the well bore is kept low, and the productivity of the gas layer is maximized, wherein the liquid level switch valve 24 also controls the opening and closing of the valve body 242 by utilizing the buoyancy difference of the liquid and the gas to the valve body control part. When the liquid level in the well bore is kept at a high level, so that the valve body 242 is submerged in the liquid, the valve body 242 is kept in an open state (the liquid hole 243 is opened) by buoyancy, and when the liquid level in the well bore is kept at a low level, the valve body 242 is exposed to the gas, so that the valve body 242 descends under the action of gravity, and the fluid passage is closed (the liquid hole 243 is closed).
In summary, the invention provides a method and a tubular column for producing gas by reinjection and drainage in the same well, which directly injects the produced water in a gas layer into a low-pressure layer in the well, designs two tubular columns for injecting water up and injecting water down according to the position of the low-pressure layer, always keeps the liquid level at the lowest by using a liquid level switch valve, and does not discharge water to the ground, thereby reducing the cost or investment of drainage consumption to the maximum extent and improving the production potential of the gas layer to the maximum extent.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (10)

1. The utility model provides a with well reinjection drainage gas production tubular column, its operating mode that is applied to the reinjection layer and is located the production gas layer below, its characterized in that, the tubular column includes: an oil pipe, a sleeve, an upper packer, a liquid level switch valve and a lower packer,
the oil pipe is concentrically arranged in the casing pipe, the periphery of the oil pipe close to the lower part is sealed and isolated from the casing pipe through an upper packer,
the liquid level switch valve is located inside the casing pipe, below the oil pipe and located in the reinjection layer, the periphery of the liquid level switch valve and the casing pipe are sealed through a lower packer, and the lower packer is used for sealing the reinjection layer and the water and gas production layer.
2. The co-well reinjection drainage gas production string of claim 1, wherein the liquid level switch valve comprises a valve seat and a hollow ball located above the valve seat.
3. The co-well reinjection, drainage and gas production string as claimed in claim 2, wherein the liquid level switch valve further comprises a spring, the lower end of the spring is fixed in the valve seat, and the hollow ball is seated at the upper end of the spring.
4. A method for producing gas by reinjection drainage of the same well, which employs the string of the same well as claimed in any one of claims 1 to 3, characterized in that it comprises the following steps:
(1) running a sleeve;
(2) a lower packer and a liquid level switch valve are put into the sleeve, and the lower packer is sealed between a gas layer and a reinjection layer;
(3) and (4) putting the upper packer and the oil pipe into the casing, and setting the upper packer in a gas layer.
5. The utility model provides a with well reinjection drainage gas production tubular column, its operating mode that is applied to product steam layer and is located reinjection layer below, its characterized in that, the tubular column includes: an oil pipe, a sleeve, a liquid level switch valve, a lower packer, an insertion pipe sealing cylinder and a bridge type joint,
the oil pipe is concentrically arranged inside the casing pipe;
an insertion pipe is connected below the oil pipe, an insertion pipe sealing barrel is inserted below the insertion pipe, a bridge type joint is connected below the insertion pipe sealing barrel, and at least one side below the insertion pipe sealing barrel is provided with an opening communicated with a water gas production layer through the bridge type joint;
a lower packer is set between the cannula sealing cylinder and the sleeve and used for sealing and isolating a reinjection layer and a water-gas producing layer;
the liquid level switch valve is located inside the sleeve, below the oil pipe and in a water-gas producing layer, and the liquid level switch valve is located below the bridge type joint and communicated with the sleeve.
6. The co-well reinjection drainage gas production string of claim 1, wherein the liquid level switch valve has a valve core, a valve body and a liquid hole, the valve body is a hollow annular valve body and is sleeved on the valve core, and the liquid hole is located on the valve core and is opened or closed by the valve body.
7. The co-well reinjection drainage gas production string as claimed in claim 6, wherein a stop structure is provided on the valve core below the valve body.
8. The string of any one of claims 5 to 7, wherein the tubing outer circumference is sealed from the casing by an upper packer.
9. A method for producing gas by reinjection drainage of the same well, which employs the string of the same well according to any one of claims 5 to 8, characterized in that it comprises the following steps:
(1) running a sleeve;
(2) the lower packer, the intubation tube sealing cylinder, the bridge joint and the liquid level switch valve are put into a sleeve, the lower packer is sealed between a gas layer and a reinjection layer, and the liquid level switch valve is positioned below the gas layer;
(3) the oil pipe and the insertion pipe are put into the sleeve, and the insertion pipe is inserted into the insertion pipe sealing cylinder to form sealing.
10. The method for producing gas by reinjection of water from a same well as claimed in claim 9, wherein an upper packer is lowered in step (3), and the upper packer is located between the tubing and the casing.
CN202010272834.3A 2020-04-09 2020-04-09 Same-well reinjection drainage gas production method and tubular column Active CN113513290B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010272834.3A CN113513290B (en) 2020-04-09 2020-04-09 Same-well reinjection drainage gas production method and tubular column

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010272834.3A CN113513290B (en) 2020-04-09 2020-04-09 Same-well reinjection drainage gas production method and tubular column

Publications (2)

Publication Number Publication Date
CN113513290A true CN113513290A (en) 2021-10-19
CN113513290B CN113513290B (en) 2023-05-19

Family

ID=78060127

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010272834.3A Active CN113513290B (en) 2020-04-09 2020-04-09 Same-well reinjection drainage gas production method and tubular column

Country Status (1)

Country Link
CN (1) CN113513290B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6196313B1 (en) * 1997-02-12 2001-03-06 Horst Simons Method and apparatus for hydrocarbon production and reservoir water disposal
US20060011345A1 (en) * 2004-07-15 2006-01-19 Delaloye Richard J Method and apparatus for downhole artificial lift system protection
US20090014171A1 (en) * 2005-12-12 2009-01-15 Shore- Tec Consult As Method and an Apparatus for Separation and Injection of Water from a Water- and Hydrocarbon-Containing Outflow Down in a Production Well
CN107989594A (en) * 2016-10-26 2018-05-04 中国石油化工股份有限公司 A kind of down-hole multilevel separation sucker rod pump same well production-injection method and tubing string
CN207568582U (en) * 2017-08-31 2018-07-03 中国石油化工股份有限公司 A kind of beam pumping unit compact downhole oil-water separation device
CN108590623A (en) * 2018-03-19 2018-09-28 中国石油天然气股份有限公司 With well re-injection process pipe string and method
CN109296351A (en) * 2018-12-10 2019-02-01 胜利油田胜利泵业有限责任公司 A kind of application submersible electric pump same well production-injection aqueous vapor isolation technics

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6196313B1 (en) * 1997-02-12 2001-03-06 Horst Simons Method and apparatus for hydrocarbon production and reservoir water disposal
US20060011345A1 (en) * 2004-07-15 2006-01-19 Delaloye Richard J Method and apparatus for downhole artificial lift system protection
US20090014171A1 (en) * 2005-12-12 2009-01-15 Shore- Tec Consult As Method and an Apparatus for Separation and Injection of Water from a Water- and Hydrocarbon-Containing Outflow Down in a Production Well
CN107989594A (en) * 2016-10-26 2018-05-04 中国石油化工股份有限公司 A kind of down-hole multilevel separation sucker rod pump same well production-injection method and tubing string
CN207568582U (en) * 2017-08-31 2018-07-03 中国石油化工股份有限公司 A kind of beam pumping unit compact downhole oil-water separation device
CN108590623A (en) * 2018-03-19 2018-09-28 中国石油天然气股份有限公司 With well re-injection process pipe string and method
CN109296351A (en) * 2018-12-10 2019-02-01 胜利油田胜利泵业有限责任公司 A kind of application submersible electric pump same well production-injection aqueous vapor isolation technics

Also Published As

Publication number Publication date
CN113513290B (en) 2023-05-19

Similar Documents

Publication Publication Date Title
RU2196892C2 (en) Device and system (versions) for increase of liquid recovery from underground beds
CN201095977Y (en) Gas lift pipe column for hot washing protective oil layer and no-killing operation
CN109281637A (en) A kind of cementing method suitable for leakiness ultradeep well
CN105649585B (en) Flood suction integrated pipe column and its operating procedure
CN210685949U (en) Well completion structure for injection and production in same well
CN201705276U (en) Well completion and flow string of horizontal well
CN109322647A (en) A kind of demixing injection-production integrated pipe column and technique
CN103089204A (en) Double-coal-bed layered pressure control device combining coal discharging and coal mining
CN201439701U (en) Stage cementing distributor
CN110439510A (en) A kind of method of layer-by-layer acidification seperated layer water injection
CN107939351A (en) A kind of coal bed gas water drainage gas production device and its application method
CN111236919B (en) Rock salt mine separate-layer mining pipe column and rock salt mine separate-layer mining method
CN103470221B (en) Method made by the connection that pump was taken out and examined to oil pipe under underbalance, no killing well gaslift, axle
CN113513290B (en) Same-well reinjection drainage gas production method and tubular column
CN210134883U (en) Injection-production integrated pipe column in same well
CN108343408A (en) Water drive gas reservoir recovery method
CN208777955U (en) A kind of ball-and-seat for gaslift production
CN201254969Y (en) Blowout prevention controller
CN104100228B (en) Reversal valve is adopted in a kind of synchronization point
CN113006750B (en) Construction tool and method for improving recovery ratio of low-permeability reservoir horizontal well
JP2024088564A (en) Natural gas hydrate-shallow gas-deep gas multi-source multi-method joint mining system and method
CN205823259U (en) A kind of gas injection tube column structure of well perforation holes compaction band permeability of improving the standard
CN211230399U (en) Shale gas composite discharging and mining process pipe column
CN213597938U (en) Acid leaching layered acidification layered water injection integrated tubular column
CN110469292B (en) Circulating channeling sealing method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant