CN212272145U - Oil gas simultaneous production pipe column - Google Patents
Oil gas simultaneous production pipe column Download PDFInfo
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- CN212272145U CN212272145U CN202020223243.2U CN202020223243U CN212272145U CN 212272145 U CN212272145 U CN 212272145U CN 202020223243 U CN202020223243 U CN 202020223243U CN 212272145 U CN212272145 U CN 212272145U
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 80
- 239000007787 solid Substances 0.000 claims abstract description 22
- 238000000926 separation method Methods 0.000 claims abstract description 21
- 238000005086 pumping Methods 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 239000003129 oil well Substances 0.000 description 9
- 230000009471 action Effects 0.000 description 7
- 238000000605 extraction Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 241001023788 Cyttus traversi Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 241001331845 Equus asinus x caballus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model discloses an oil gas simultaneous production pipe column, which comprises a solid sucker rod, an oil pipe, a sleeve and a separate production and separation pump; the branch production and separation pump is arranged in the sleeve, one end of the solid sucker rod is connected with a plunger of the branch production and separation pump, and the other end of the solid sucker rod is connected with a wellhead polished rod; the upper end and the lower end of the separate production and separate discharge pump are connected with an oil pipe thread, and an oil pipe at the upper end is connected to the well surface; two packers are arranged on the lower end oil pipe according to an oil layer and a gas layer, the lower end oil pipe is provided with an oil inlet at the oil layer, and the end part of the lower end oil pipe is opened and is directly communicated with a gas layer perforation hole. By designing the oil-gas co-production tubular column, the high-efficiency production of oil-gas co-production wells is realized, the productivity of oil layers and gas layers is effectively exerted, and the purpose of developing the maximum production rate of oil-gas resources is achieved.
Description
Technical Field
The utility model belongs to the technical field of recover oil, concretely relates to oil gas is with adopting tubular column.
Background
In the process of developing the onshore oil field in China, the phenomenon of overlapping of oil and gas layers is found, wherein the phenomenon is typically an upper oil layer and a lower gas layer (such as a Changqing Zhenyuan oil field). In order to improve the exploitation utilization rate of resources, the current main method is to open an oil layer and a gas layer at the same time, but the problem brought to production is that the gas flow of an oil-gas production well is very large, when a conventional pumping unit sucker rod pump is adopted for production, the pump efficiency is very low when a designed gas-proof pipe column (such as a gas anchor + a gas-proof pump, a gas lift valve + a gas-proof pump and the like) is produced, the liquid production amount is influenced, and the production efficiency of the oil-gas well is further reduced; in addition, if the plunger gas lift mode is adopted for production (liquid drainage and gas production), the gas pressure of a shaft of a part of oil and gas production wells is insufficient, or a certain contradiction exists between the liquid production amount of a single well and the gas production amount, so that the effective exertion of the oil production energy is often limited.
SUMMERY OF THE UTILITY MODEL
The utility model aims at having the problem that the sucker-rod pump oil gas is low, output is low with producing well pump efficiency, having proposed an oil gas is with adopting the tubular column, through designing an oil gas is with adopting the tubular column, realizes oil gas high-efficient production with producing well, effectively exerts oil reservoir, gas reservoir productivity, reaches the purpose of the biggest extraction rate of oil gas resource development.
In order to achieve the above object, the present invention provides the following technical solutions.
An oil gas simultaneous production tubular column comprises a solid sucker rod, an oil pipe, a sleeve and a separate production and separate discharge pump;
the branch production and separation pump is arranged in the sleeve, one end of the solid sucker rod is connected with a plunger of the branch production and separation pump, and the other end of the solid sucker rod is connected with a wellhead polished rod;
the upper end and the lower end of the separate production and separate discharge pump are connected with an oil pipe thread, and an oil pipe at the upper end is connected to the well surface; two packers are arranged on the lower end oil pipe according to an oil layer and a gas layer, the lower end oil pipe is provided with an oil inlet at the oil layer, and the end part of the lower end oil pipe is opened and is directly communicated with a gas layer perforation hole.
As a further improvement of the utility model, the inner cavity of the separate production and separation pump is provided with a central tube which divides the inner cavity of the separate production and separation pump into a central flow passage and a lateral flow passage, an oil inlet is communicated with the lateral flow passage, and the central flow passage is communicated with a lower end oil pipe;
the central pipe is divided into a first space and a second space by a grid, a central flow passage is communicated with the first space, and a channel is arranged on the side wall of the first space and penetrates through the pump cylinder to communicate with an annular space between the oil pipe and the sleeve; the side wall of the second space is provided with a through hole which is communicated with the lateral flow passage, and the upper part of the second space is communicated with the upper end oil pipe.
As a further improvement of the utility model, the first space is divided into two parts by the check fender, and the bottom check of two parts is provided with first standing valve, second standing valve on keeping off respectively.
As a further improvement, the second space is divided into two parts by the grid, and the top grids of the two parts are respectively provided with a third fixed valve and a traveling valve.
As a further improvement, the center tube sets up in the lower extreme oil pipe, and is sealed through the sealing ring between center tube and the lower extreme oil pipe, and the sealing ring setting is in the oil inlet below.
As a further improvement, the well head polished rod is connected with the oil pumping unit.
As a further improvement of the utility model, the packer is connected with the lower end oil pipe through the oil pipe screw thread.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses under the artifical lift system prerequisite of current beam-pumping unit well sucker-rod pump not changing, through addding the branch and adopt the pump, packer and the special liquid stream runner design of oil-well pump, through the method that the beam-pumping unit sucker-rod pump divides the extraction to separate, realized that oil gas divides the extraction with the oil gas of producing well to divide the extraction to separate and lift with the high efficiency, gaseous production contradiction that leads to the pump efficiency low, the output is low to the oil-well pump influence when having eliminated conventional oil gas and producing well adoption gas-tight tubular column exploitation production, have tubular column simple structure, high efficiency, with low costs technical characterstic.
Furthermore, the separate production and separation pump is designed with a special central channel and a special lateral channel, and produced liquid in an oil layer and produced gas in a gas layer respectively enter the pump barrel through the central channel and the lateral channel, are respectively discharged into an annular space between an oil pipe and an oil pipe sleeve on the upper part of the pump plunger under the action of suction force and pressure generated by the up-and-down reciprocating motion of the pump plunger, and are lifted to a ground gathering pipeline.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for helping the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. The skilled person in the art can, under the teaching of the present invention, choose various possible shapes and proportional dimensions to implement the invention according to the specific situation. In the drawings:
FIG. 1 is a schematic structural diagram of a simultaneous oil and gas production string;
in the figure: 1. the system comprises a solid sucker rod, an oil pipe 2, a sleeve 3, a separate production and separation pump 4, a traveling valve 5, a first fixed valve 6, a second fixed valve 7, a third fixed valve 8, a pump cylinder 9, a pump lateral flow passage 10, a central flow passage 11, a packer 12 and an artificial well bottom 13.
Detailed Description
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a single embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, the first objective of the present invention is to provide a tubular column for simultaneous oil and gas production, which comprises a solid sucker rod 1, an oil pipe 2, a casing 3, a separate production and separation pump 4, a traveling valve 5, a first fixed valve 6, a second fixed valve 7, a third fixed valve 8, a pump barrel 9, a lateral flow passage 10, a central flow passage 11, a packer 12, and an artificial well bottom 13. In the pipe column, a solid sucker rod 1 is connected with a plunger of a separate production and separate delivery pump 4, the solid sucker rod 1 is connected with a wellhead polished rod, a pumping unit drives the polished rod and the solid sucker rod 1 to reciprocate up and down to enable an oil well pump to work normally, and produced liquid in an oil layer and produced gas in a gas layer enter a pump barrel through a central flow passage 1111 and a lateral flow passage 10 of the separate production and separate delivery pump 4 respectively and are discharged into an annular space between an oil pipe 2 and a sleeve 3 on the upper portion of the pump plunger under the action of suction force and pressure generated by the up-and-down reciprocating motion of the pump plunger and lifted to a ground gathering and.
The separate production and separate discharge pump 4 is arranged in the sleeve 3, one end part of the solid sucker rod 1 is connected with a plunger of the separate production and separate discharge pump 4, and the other end part of the solid sucker rod 1 is connected with a wellhead polished rod; the upper end and the lower end of the separate production and separate pump 4 are connected with an oil pipe 2 through screw threads, and the oil pipe at the upper end is connected to the well surface; two packers are arranged on the lower end oil pipe according to an oil layer and a gas layer, the lower end oil pipe is provided with an oil inlet at the oil layer, and the end part of the lower end oil pipe is opened and is directly communicated with a gas layer perforation hole.
The inner cavity of the separate production and separation pump 4 is provided with a central pipe, the central pipe divides the inner cavity of the separate production and separation pump 4 into a central flow passage 11 and a lateral flow passage 10, an oil inlet is communicated with the lateral flow passage 10, and the central flow passage 11 is communicated with an oil pipe at the lower end; the central pipe is divided into a first space and a second space by the grid, the central flow passage 11 is communicated with the first space, and a channel is arranged on the side wall of the first space and penetrates through the pump cylinder 9 to be communicated with an annulus between the oil pipe 2 and the sleeve 3; the side wall of the second space is provided with a through hole which is communicated with the lateral flow passage 10, and the upper part of the second space is communicated with the upper end oil pipe.
The first space is divided into two parts by a grid, and a first fixed valve 6 and a second fixed valve 7 are respectively arranged on the grids at the bottoms of the two parts. The second space is divided into two parts by a grid, and a third fixed valve 8 and a traveling valve 5 are respectively arranged on the grids at the tops of the two parts. The central tube is arranged in the lower end oil tube, the central tube and the lower end oil tube are sealed through a sealing ring, and the sealing ring is arranged below the oil inlet.
The wellhead polished rod is connected with the pumping unit. The packer is connected with the lower end oil pipe through an oil pipe thread. The upper and lower parts of the separate production and separation pump 4 are connected with oil pipe threads, the upper and lower packers are connected with the oil pipe 2, and the end part of the oil pipe at the lowest end is open and is directly communicated with the gas layer perforation hole.
The pipe column middle production separation pump 4 is designed with a special central flow passage 11 and a special lateral flow passage 10, oil layer produced liquid and gas layer produced gas respectively enter a pump barrel through the central flow passage 11 and the lateral flow passage 10, and are respectively discharged into an annular space between an oil pipe and a sleeve pipe on the upper part of a pump plunger under the action of suction force and pressure generated by the up-and-down reciprocating motion of the pump plunger, and are lifted to a ground gathering and transportation pipeline.
The oil gas and oil gas co-production well can be efficiently produced by a method of separate production and separation of the sucker rod pumps of the oil pumping unit.
The specific working principle is as follows: designing a separate production and separate output oil well pump and an oil sleeve annulus packer in a production pipe column, wherein the packer separates an oil layer, a gas layer and an oil sleeve annulus on the upper part of a shaft; the solid sucker rod is connected with a plunger of the separate production and separate discharge pump, the upper part of the solid sucker rod is connected with a polished rod, the polished rod is connected with a horse head of the oil pumping unit, the separate production and separate discharge pump normally works under the driving of the oil pumping unit, the plunger of the pump reciprocates up and down, and suction force and pressure are generated in a pump cylinder; the produced liquid in the oil layer and the produced gas in the gas layer respectively enter the pump barrel through the lateral flow passage and the central flow passage 11 of the separate production and separation pump, are respectively discharged into an oil pipe on the upper part of the pump plunger and an oil sleeve ring through the fixed valve and the traveling valve, and are respectively discharged into a gathering and transportation pipeline connected with a ground wellhead to complete the process of oil gas simultaneous production. The method and the mode for separately producing and separating oil gas from oil gas in the same oil production well solve the problem of influence of gas in a shaft on the pumping efficiency of an oil well pump in the design and production process of a conventional gas-proof production pipe column, and the pipe column has the advantages of simple structure, strong adaptability and high production efficiency.
The utility model also provides a exploitation method of oil gas is with adopting tubular column, including following step:
the polish rod of the well head drives the solid sucker rod 1 to reciprocate up and down, the separate production and separation pump 4 starts to work, produced liquid in an oil layer and produced gas in a gas layer respectively enter a pump barrel through a central flow passage 11 and a lateral flow passage 10 of the separate production and separation pump 4, and are respectively discharged into an annular space between an upper oil pipe 2 and an annular space between the upper oil pipe 2 and a sleeve 3 of the pump plunger under the action of suction force and pressure generated by the up and down reciprocating motion of the pump plunger, and are lifted to a ground gathering and transportation pipeline.
Specifically, the produced fluid of the oil reservoir flows through the third fixed valve 8 and the traveling valve 5 of the pump from the lateral fluid inlet flow passage, enters an oil pipe of the pump, and is lifted to a ground oil transportation flow pipeline by a plunger piston, so that the oil extraction process is completed;
after gas produced in the gas layer enters the central flow passage 11, the gas is discharged into an annular space between the oil pipe 2 and the sleeve 3 through the first fixed valve 6 and the second fixed valve 7 under the action of pumping suction, and is discharged into a wellhead ground gas collection pipeline through an oil sleeve annular space, so that the gas production process is completed.
The utility model discloses under the artifical lift system prerequisite of pole pump not changing current rod-pumped well, through addding branch and adopt knockout pump, packer, realized having the high efficiency of oil gas layer well concurrently and lifted, gaseous production contradiction that leads to the pump efficiency to hang down, output low to the oil-well pump influence when having eliminated conventional oil gas exploitation well adoption gas-tight tubular column exploitation has the technical characterstic of tubular column simple structure, efficient, with low costs.
To sum up, the utility model relates to an oil gas is with adopting tubular column, include from the top down and use artifical shaft bottom 13 to connect gradually as the below solid sucker rod 1, oil pipe 2, sleeve pipe 3, branch to adopt and divide pump 4, packer 11, artifical shaft bottom 13. The solid sucker rod 1 is connected with a polished rod, and the upper end of the polished rod is connected with a horse head of the pumping unit. In the process that the mule head of the pumping unit drives the polish rod to reciprocate up and down, the solid sucker rod and the separate-production separate-output oil well pump are driven to work, and oil layer produced liquid and gas layer produced gas respectively enter the pump barrel from the separate-production separate-output oil pumping lateral flow passage 10 and the central flow passage 11.
Under the action of the up-and-down reciprocating motion of the plunger of the oil well pump, oil production liquid flows through the third fixed valve 8 and the traveling valve 5 from the lateral liquid inlet flow passage of the pump in sequence, enters the oil pipe of the pump, and is lifted to the pipeline of the ground oil transportation process by the plunger, so that the oil extraction process is completed. And gas is produced in the gas layer, enters the central flow passage 11, is discharged into an annular space between the oil pipe 2 and the sleeve 3 through the first fixed valve 6 and the second fixed valve 7 under the action of pumping suction, and is discharged into a wellhead ground gas collection pipeline through the oil sleeve annular space, so that the gas production process is completed.
The utility model provides a method is adopted with to oil gas, its advantage is under the prerequisite that does not change current rod pump of rod-pumped well artifical lift system, through addding the branch and adopt knockout pump 4, packer 11, has realized having oil gas layer well high efficiency concurrently and has lifted, and gaseous when having eliminated conventional oil gas exploitation well adoption gas-proof tubular column exploitation leads to the production contradiction that the pump efficiency is low, output is low to the oil-well pump influence, has the technical characterstic that tubular column simple structure, efficient, with low costs.
It should be noted that, in the description of the present invention, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no order is shown between the two, and no indication or suggestion of relative importance is understood. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided would be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes. The omission in the foregoing claims of any aspect of the subject matter that is disclosed herein is not intended to forego such subject matter, nor should the applicants be construed as having contemplated such subject matter as being part of the disclosed subject matter.
Claims (7)
1. The oil-gas simultaneous production pipe column is characterized by comprising a solid sucker rod (1), an oil pipe (2), a sleeve (3) and a separate production and separation pump (4);
the separate production and separate discharge pump (4) is arranged in the sleeve (3), one end of the solid sucker rod (1) is connected with a plunger of the separate production and separate discharge pump (4), and the other end of the solid sucker rod (1) is connected with a wellhead polished rod;
the upper end and the lower end of the separate production and separate discharge pump (4) are connected with an oil pipe (2) in a threaded manner, and the oil pipe at the upper end is connected to the well surface; two packers are arranged on the lower end oil pipe according to an oil layer and a gas layer, the lower end oil pipe is provided with an oil inlet at the oil layer, and the end part of the lower end oil pipe is opened and is directly communicated with a gas layer perforation hole.
2. The oil and gas co-production string according to claim 1, wherein: the inner cavity of the separate production and separation pump (4) is provided with a central pipe, the central pipe divides the inner cavity of the separate production and separation pump (4) into a central flow passage (11) and a lateral flow passage (10), an oil inlet is communicated with the lateral flow passage (10), and the central flow passage (11) is communicated with an oil pipe at the lower end;
the central pipe is divided into a first space and a second space by a grid, a central flow passage (11) is communicated with the first space, and a channel arranged on the side wall of the first space penetrates through a pump cylinder (9) to be communicated with an annulus between the oil pipe (2) and the sleeve (3); the side wall of the second space is provided with a through hole which is communicated with the lateral flow passage (10), and the upper part of the second space is communicated with the upper end oil pipe.
3. The oil and gas co-production string according to claim 2, wherein: the first space is divided into two parts by the grid block, and the bottom grid blocks of the two parts are respectively provided with a first fixed valve (6) and a second fixed valve (7).
4. The oil and gas co-production string according to claim 2, wherein: the second space is divided into two parts by the grid, and a third fixed valve (8) and a traveling valve (5) are respectively arranged on the grids at the tops of the two parts.
5. The oil and gas co-production string according to claim 2, wherein: the central tube is arranged in the lower end oil tube, the central tube and the lower end oil tube are sealed through a sealing ring, and the sealing ring is arranged below the oil inlet.
6. The oil and gas co-production string according to claim 1, wherein: the wellhead polished rod is connected with the pumping unit.
7. The oil and gas co-production string according to claim 1, wherein: the packer is connected with the lower end oil pipe through an oil pipe thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020223243.2U CN212272145U (en) | 2020-02-27 | 2020-02-27 | Oil gas simultaneous production pipe column |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020223243.2U CN212272145U (en) | 2020-02-27 | 2020-02-27 | Oil gas simultaneous production pipe column |
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| CN212272145U true CN212272145U (en) | 2021-01-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271030A (en) * | 2020-02-27 | 2020-06-12 | 中国石油天然气股份有限公司 | Oil-gas simultaneous production pipe column and production method thereof |
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2020
- 2020-02-27 CN CN202020223243.2U patent/CN212272145U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271030A (en) * | 2020-02-27 | 2020-06-12 | 中国石油天然气股份有限公司 | Oil-gas simultaneous production pipe column and production method thereof |
| CN111271030B (en) * | 2020-02-27 | 2023-09-26 | 中国石油天然气股份有限公司 | Oil and gas simultaneous production pipe column and production method thereof |
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