CN212337256U - Fracturing is returned and is arranged gas production integration tubular column - Google Patents
Fracturing is returned and is arranged gas production integration tubular column Download PDFInfo
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- CN212337256U CN212337256U CN202020894258.1U CN202020894258U CN212337256U CN 212337256 U CN212337256 U CN 212337256U CN 202020894258 U CN202020894258 U CN 202020894258U CN 212337256 U CN212337256 U CN 212337256U
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Abstract
The utility model discloses a fracturing is returned and is arranged gas production integration tubular column, including sleeve pipe and oil pipe, the sleeve pipe cover is established in oil pipe's the outside, form annular space between oil pipe and the intraductal wall of sleeve, oil pipe one side is equipped with the pressure boost pipe, pressure boost pipe top intercommunication has the air pump, pressure boost pipe bottom intercommunication has first valve body, first valve body and oil pipe's outer wall fixed connection. The utility model discloses a set up sleeve pipe and oil pipe, gaseous collection is accomplished with the annular space that oil pipe formed to the accessible sleeve pipe, oil pipe can be with hydrops and gaseous initiative discharge to at oil gas exploitation later stage, go into nitrogen gas to oil pipe's inside pump through pressure-increasing pipe and air pump, can effectually promote the inside atmospheric pressure of oil pipe, make its inside gas and hydrops can initiatively continue to discharge, this tubular column collection fracturing, discharge return and the gas production function integration, do not need extra equipment to assist the row to return and the gas production, the gas production efficiency has been improved.
Description
Technical Field
The utility model relates to an oil gas exploitation equipment technical field, concretely relates to gas production integration tubular column is returned to fracturing.
Background
In the field of oil and gas exploitation, most of the oil and gas fields at home and abroad are edge and bottom water gas fields at present. The development operator is produced out of the ground by running casing and tubing into a wellbore drilled into the gas zone and performing a casing perforation completion to perforate the gas zone gases into the passage formed by the casing and tubing.
In the oil and gas exploitation process, a large amount of underground water flows into the casing pipe in the stratum, and further submerges the oil pipe, the existing oil pipe cannot continuously and effectively drain water, an electric submersible pump is additionally added to assist in draining water, and the oil and gas exploitation efficiency is reduced.
Therefore, it is necessary to invent a fracturing, flowback and gas production integrated tubular column to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a fracturing is returned and is discharged gas production integration tubular column, through setting up sleeve pipe and oil pipe, gaseous collection is accomplished with the annular space that oil pipe formed to the accessible sleeve pipe, oil pipe can be with hydrops and gaseous initiative discharge, and at oil gas exploitation later stage, go into nitrogen gas to oil pipe's inside pump through booster tube and air pump, can effectually promote the inside atmospheric pressure of oil pipe, make its inside gas and hydrops can initiatively continue to discharge, this tubular column collection fracturing, discharge and return and the gas production function integration, do not need extra equipment to assist to discharge and return and the gas production, gas production efficiency has been improved, with the above-mentioned weak point in the solution technology.
In order to achieve the above object, the present invention provides the following technical solutions: a fracturing flow-back gas production integrated pipe column comprises a sleeve and an oil pipe, wherein the sleeve is sleeved outside the oil pipe, an annular space is formed between the oil pipe and the inner wall of the sleeve, a pressure increasing pipe is arranged on one side of the oil pipe, the top end of the pressure increasing pipe is communicated with an air pump, the bottom end of the pressure increasing pipe is communicated with a first valve body, the first valve body is fixedly connected with the outer wall of the oil pipe, one end, away from the air pump, of the pressure increasing pipe is communicated with the oil pipe, an air lift valve is arranged inside the oil pipe and arranged above the joint of the pressure increasing pipe and the oil pipe, a first perforation is formed in the outer wall of the sleeve, a second perforation is formed in the outer wall of the sleeve, and a fracturing mechanism;
the fracturing mechanism comprises a release, a hydraulic anchor, a first packer, a jet device and a second packer, wherein the release, the hydraulic anchor, the first packer, the jet device and the second packer are sequentially and fixedly connected to the outer side of the oil pipe.
Preferably, one end of the oil pipe close to the second packer is fixedly connected with a first sieve pipe, and one end of the first sieve pipe far away from the second packer is provided with a first one-way valve.
Preferably, one end of the second packer, which is far away from the first sieve pipe, is provided with a second sieve pipe, and one end of the second sieve pipe is communicated with the first sieve pipe.
Preferably, one end of the second sieve tube close to the second packer is provided with a second one-way valve.
Preferably, the top of the annular space is communicated with a gas production pipe, and one end of the gas production pipe is provided with a second valve body.
Preferably, the top end of the oil pipe is provided with a third valve body, and the top end of the oil pipe is communicated with a gas-liquid separator.
Preferably, the casing comprises an outer layer pipe and an inner layer pipe, and well cementation filler is arranged between the outer layer pipe and the inner layer pipe.
In the technical scheme, the utility model provides a technological effect and advantage:
through setting up sleeve pipe and oil pipe, gaseous collection is accomplished with the annular space that oil pipe formed to the accessible sleeve pipe, one end through at oil pipe sets up first screen pipe, oil pipe can be with hydrops and gaseous initiative discharge, and at oil gas exploitation later stage, go into nitrogen gas to oil pipe's inside pump through booster tube and air pump, can effectually promote the inside atmospheric pressure of oil pipe, make its inside gas and hydrops can initiatively continue to discharge, the effectual gaseous collection rate that has improved, this tubular column collection fracturing, discharge and return and the gas production function integration, need not add equipment to assist to discharge and return and the gas production, gas production efficiency has been improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of the internal structure of the casing of the present invention;
FIG. 3 is an enlarged view of the portion A of FIG. 2 according to the present invention;
fig. 4 is an enlarged view of the structure of the part B of fig. 2 according to the present invention.
Description of reference numerals:
the device comprises a casing pipe 1, an oil pipe 2, an annular space 3, a booster pipe 4, an air pump 5, a first valve body 6, a gas lift valve 7, a first perforation 8, a second perforation 9, a release 11, a hydraulic anchor 12, a first packer 13, a jet device 14, a second packer 15, a first sieve pipe 17, a first one-way valve 18, a second sieve pipe 19, a second one-way valve 20, a gas production pipe 21, a second valve body 22, a third valve body 23, a gas-liquid separator 24, an outer pipe 25, a cementing filler 26 and an inner pipe 27.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
The utility model provides a fracturing is returned and is arranged gas production integration tubular column as shown in fig. 1-4, including sleeve pipe 1 and oil pipe 2, sleeve pipe 1 cover is established in the outside of oil pipe 2, form annular space 3 between oil pipe 2 and the sleeve pipe 1 inner wall, oil pipe 2 one side is equipped with booster pipe 4, booster pipe 4 top intercommunication has air pump 5, booster pipe 4 bottom intercommunication has first valve body 6, first valve body 6 and the outer wall fixed connection of oil pipe 2, booster pipe 4 keeps away from one end of air pump 5 and communicates with oil pipe 2, oil pipe 2 is inside to be equipped with gas lift valve 7, gas lift valve 7 sets up the top at booster pipe 4 and oil pipe 2 junction, the outer wall of sleeve pipe 1 has seted up first perforation 8, the outer wall of sleeve pipe 1 has seted up second perforation 9, oil pipe 2 bottom is equipped with fracturing mechanism;
the fracturing mechanism comprises a releasing hand 11, a hydraulic anchor 12, a first packer 13, a jet device 14 and a second packer 15, wherein the releasing hand 11, the hydraulic anchor 12, the first packer 13, the jet device 14 and the second packer 15 are sequentially and fixedly connected to the outer side of the oil pipe 2.
Further, in the above technical solution, one end of the oil pipe 2 close to the second packer 15 is fixedly connected with a first screen 17, one end of the first screen 17 far from the second packer 15 is provided with a first check valve 18, and gas and liquid can be discharged into the oil pipe 2 from the first screen 17 through the first check valve 18.
Further, in the above technical solution, one end of the second packer 15, which is far away from the first screen 17, is provided with a second screen 19, and one end of the second screen 19 is communicated with the first screen 17.
Further, in the above technical solution, one end of the second sieve tube 19 close to the second packer 15 is provided with a second one-way valve 20, and by providing the second sieve tube 19, the accumulated fluid on one side of the second packer 15 can enter the second sieve tube 19, and the accumulated fluid can flow to the first sieve tube 17 through the second sieve tube 19.
Furthermore, in the above technical solution, a gas production pipe 21 is communicated with the top of the annular space 3, a second valve body 22 is arranged at one end of the gas production pipe 21, and the gas in the annular space 3 can be discharged from the gas production pipe 21 by opening the second valve body 22.
Further, in the above technical solution, the top end of the oil pipe 2 is provided with a third valve body 23, the top end of the oil pipe 2 is communicated with a gas-liquid separator 24, and the gas-liquid separator 24 is arranged to separate the gas and the liquid mixture discharged from the oil pipe 2, thereby completing the collection of the gas.
Further, in the above technical solution, the casing 1 includes an outer pipe 25 and an inner pipe 27, a cementing filler 26 is disposed between the outer pipe 25 and the inner pipe 27, and the structural strength of the pipe wall of the casing 1 is improved by filling the cementing filler 26 between the outer pipe 25 and the inner pipe 27.
The implementation mode is specifically as follows: in the early stage of oil and gas production, a fracturing mechanism is arranged, a closed space is formed between a first packer 13 and a second packer 15, fracturing fluid is continuously injected into an oil pipe 2, the fracturing fluid is injected through an injector 14, then the fracturing operation on the stratum can be carried out, when the fracturing operation is completed and the oil and gas production stage is carried out, a first perforation 8 and a second perforation 9 are arranged on the outer wall of a casing pipe 1, gas in an oil and gas reservoir can enter the annular space 3 through the second perforation 9, a gas production pipe 21 is communicated with the top of the annular space 3, a second valve body 22 at one end is opened, the gas in the oil and gas reservoir in the annular space 3 is discharged from the gas production pipe 21, then the gas collection can be carried out through the annular space 3, the gas in the oil and gas reservoir can also enter the closed space between the first packer 13 and the second packer 15 through the first perforation 8, accumulated water in the oil and gas reservoir also flows into a position between the second packer 15 and the first packer 13 through the first perforation 8, the first packer 13 can effectively block the accumulated water to prevent the accumulated water from being poured above the casing 1, gas and the accumulated water can enter the inside of the oil pipe 2 through the first sieve pipe 17 and the first check valve 18 by arranging the first sieve pipe 17, then the gas lift valve 7 is opened due to the rise of the air pressure in the oil pipe 2, the accumulated water and the gas can be actively discharged through the oil pipe 2, the third valve body 23 is opened, the gas and the accumulated water enter the gas-liquid separator 24, the gas collection is completed after the gas-liquid separation, the gas in the oil and gas reservoir is reduced when the gas pressure in the oil pipe 2 is not enough to open the gas lift valve 7 to complete the active discharge of the gas and the liquid by arranging the booster pipe 4, pressure tube 4 lasts or intermittent type pump goes into nitrogen gas to oil pipe 2's inside through air pump 5, and then can effectual promotion oil pipe 2 inside atmospheric pressure, oil pipe 2 inside atmospheric pressure rises, its inside gas and hydrops can be initiatively discharged, the effectual collection rate that improves gas, this tubular column set fracturing, arrange to return and the gas production function integration, do not need extra equipment to assist to arrange to return and the gas production, the gas production efficiency has been improved, this embodiment has specifically solved among the prior art oil pipe and can't last effectual drainage, the problem of oil gas exploitation efficiency has been reduced.
This practical theory of operation:
referring to the attached drawings 1-4 of the specification, in the early stage of oil and gas production, a fracturing mechanism is arranged, the fracturing operation on the stratum can be carried out, when the fracturing operation is completed and the oil and gas production stage is carried out, a first perforation 8 and a second perforation 9 are arranged on the outer wall of a casing 1, the gas in the oil and gas reservoir can enter the annular space 3 through the second perforation 9, a gas production pipe 21 is communicated with the top of the annular space 3, a second valve body 22 at one end is opened, the gas in the oil and gas reservoir in the annular space 3 is discharged from the gas production pipe 21, the gas in the oil and gas reservoir can also enter the closed space between a first packer 13 and a second packer 15 through the first perforation 8, the accumulated water in the oil and gas reservoir also flows into the space between the second packer 15 and the first packer 13 through the first perforation 8, and a first sieve pipe 17 is arranged, gaseous and hydrops accessible first screen pipe 17 and through the inside that first check valve 18 entered into oil pipe 2, and then oil pipe 2 is inside because of the atmospheric pressure risees, gas lift valve 7 is opened, and then hydrops and gaseous accessible oil pipe 2 carry out initiative discharge, open third valve body 23, gaseous and hydrops enter into vapour and liquid separator 24, after gas-liquid separation, accomplish gaseous collection, go on to the later stage at the gas production, the gas in the oil and gas reservoir reduces thereupon, the atmospheric pressure also reduces thereupon, through setting up booster pipe 4, booster pipe 4 continues or intermittent type pump into nitrogen gas to oil pipe 2's inside through air pump 5, the inside atmospheric pressure of oil pipe 2 rises, its inside gas and hydrops can initiatively discharge.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (7)
1. The utility model provides a fracturing is returned row and is adopted gas integration tubular column, includes sleeve pipe (1) and oil pipe (2), its characterized in that: the sleeve (1) is sleeved outside the oil pipe (2), an annular space (3) is formed between the oil pipe (2) and the inner wall of the sleeve (1), a pressure increasing pipe (4) is arranged on one side of the oil pipe (2), the top end of the pressure increasing pipe (4) is communicated with an air pump (5), the bottom end of the pressure increasing pipe (4) is communicated with a first valve body (6), the first valve body (6) is fixedly connected with the outer wall of the oil pipe (2), one end of the pressure increasing pipe (4) far away from the air pump (5) is communicated with the oil pipe (2), the gas lift valve (7) is arranged in the oil pipe (2), the gas lift valve (7) is arranged above the joint of the pressure increasing pipe (4) and the oil pipe (2), the outer wall of the casing (1) is provided with a first perforation (8), the outer wall of the casing (1) is provided with a second perforation (9), and the bottom end of the oil pipe (2) is provided with a fracturing mechanism;
the fracturing mechanism comprises a releasing element (11), a hydraulic anchor (12), a first packer (13), a jet device (14) and a second packer (15), wherein the releasing element (11), the hydraulic anchor (12), the first packer (13), the jet device (14) and the second packer (15) are sequentially and fixedly connected to the outer side of the oil pipe (2).
2. The fracturing flow-back gas production integrated pipe column of claim 1, wherein: one end, close to the second packer (15), of the oil pipe (2) is fixedly connected with a first sieve pipe (17), and one end, far away from the second packer (15), of the first sieve pipe (17) is provided with a first one-way valve (18).
3. The fracturing flow-back gas production integrated pipe column of claim 2, wherein: and one end of the second packer (15), which is far away from the first sieve tube (17), is provided with a second sieve tube (19), and one end of the second sieve tube (19) is communicated with the first sieve tube (17).
4. The fracturing flow-back gas production integrated pipe column of claim 3, wherein: and one end of the second sieve tube (19) close to the second packer (15) is provided with a second one-way valve (20).
5. The fracturing flow-back gas production integrated pipe column of claim 1, wherein: the top of the annular space (3) is communicated with a gas production pipe (21), and one end of the gas production pipe (21) is provided with a second valve body (22).
6. The fracturing flow-back gas production integrated pipe column of claim 1, wherein: the top end of the oil pipe (2) is provided with a third valve body (23), and the top end of the oil pipe (2) is communicated with a gas-liquid separator (24).
7. The fracturing flow-back gas production integrated pipe column of claim 1, wherein: the casing (1) comprises an outer layer pipe (25) and an inner layer pipe (27), and well cementation filler (26) is arranged between the outer layer pipe (25) and the inner layer pipe (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020894258.1U CN212337256U (en) | 2020-05-25 | 2020-05-25 | Fracturing is returned and is arranged gas production integration tubular column |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020894258.1U CN212337256U (en) | 2020-05-25 | 2020-05-25 | Fracturing is returned and is arranged gas production integration tubular column |
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| CN212337256U true CN212337256U (en) | 2021-01-12 |
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| CN202020894258.1U Active CN212337256U (en) | 2020-05-25 | 2020-05-25 | Fracturing is returned and is arranged gas production integration tubular column |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278265A (en) * | 2021-12-31 | 2022-04-05 | 青海省第四地质勘查院 | Plateau continental facies shale gas testing and flowback equipment, gas testing method and flowback method |
| CN114922600A (en) * | 2022-05-13 | 2022-08-19 | 中海油能源发展股份有限公司 | Fracturing production integrated process pipe column for throwing and fishing electric pump well and operation method thereof |
-
2020
- 2020-05-25 CN CN202020894258.1U patent/CN212337256U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278265A (en) * | 2021-12-31 | 2022-04-05 | 青海省第四地质勘查院 | Plateau continental facies shale gas testing and flowback equipment, gas testing method and flowback method |
| CN114278265B (en) * | 2021-12-31 | 2022-08-05 | 青海省第四地质勘查院 | Plateau continental facies shale gas testing and flowback equipment, gas testing method and flowback method |
| CN114922600A (en) * | 2022-05-13 | 2022-08-19 | 中海油能源发展股份有限公司 | Fracturing production integrated process pipe column for throwing and fishing electric pump well and operation method thereof |
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