CN114922589A - Gas production wellhead suitable for low-temperature environment - Google Patents
Gas production wellhead suitable for low-temperature environment Download PDFInfo
- Publication number
- CN114922589A CN114922589A CN202210417993.7A CN202210417993A CN114922589A CN 114922589 A CN114922589 A CN 114922589A CN 202210417993 A CN202210417993 A CN 202210417993A CN 114922589 A CN114922589 A CN 114922589A
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- Prior art keywords
- pipe
- gas production
- fixedly connected
- liquid
- pipes
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 90
- 239000007788 liquid Substances 0.000 claims abstract description 85
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 230000001681 protective effect Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 46
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 18
- 239000003345 natural gas Substances 0.000 abstract description 9
- 238000010257 thawing Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 238000005070 sampling Methods 0.000 description 7
- 238000009826 distribution Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material 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
- E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/005—Heater surrounding production tube
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- 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)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to the field of natural gas acquisition equipment, in particular to a gas production wellhead suitable for a low-temperature environment. Furthermore, the gas production wellhead suitable for the low-temperature environment further comprises a middle shaft rotating on the liquid production pipe, a conveying pipe rotating on the middle shaft, a communicating pipe rotating on the conveying pipe and the liquid production pipe, and a pushing frame fixedly connected on the middle shaft. Furthermore, be provided with the circulating pipe on the propelling movement frame, circulating pipe and communicating pipe intercommunication have the advantage that can realize quick thawing when liquid freezes when the liquid production pipe appears.
Description
Technical Field
The invention relates to the field of natural gas acquisition equipment, in particular to a gas production wellhead suitable for a low-temperature environment.
Background
The gas production well head is a device which is installed on the well head, hangs the casing and the oil pipe, and seals the annular space of the oil pipe, the casing and each layer of casing in the oil and natural gas drilling, and generally comprises a casing head, an oil pipe head and a blowout preventer group.
The invention with the publication number of 113389515 discloses a gas production wellhead device and a gas production well, which comprise a gas production wellhead main body, wherein a protection box is arranged on the outer side of the gas production wellhead main body, and the protection box comprises a box door and a box body fixedly connected with the gas production wellhead main body; the main gas production wellhead body is provided with a main electromagnetic valve and a main gas flowmeter which are electrically connected with the control module; the exhaust pipe is provided with an auxiliary gas flowmeter electrically connected with the control module; a branch air pipe seat is installed at one end of the four ends of the gate valve, and an air nozzle is installed at the port at the outer side of the branch air passage; the exhaust pipe is provided with a protective sleeve, and a detection air passage of the protective sleeve is connected with the air tap through a detection air pipe; the system also comprises a control terminal. But the invention can not realize quick thawing when the liquid freezing of the liquid collecting pipe occurs.
Disclosure of Invention
The invention aims to provide a gas production wellhead suitable for a low-temperature environment, and the gas production wellhead has the advantage of realizing quick thawing when liquid in a gas production pipe is frozen.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a gas production well head suitable for low temperature environment, includes the liquid production pipe to and two liquid separating pipes of rigid coupling on the liquid production pipe, and set up the outer heat pipe on liquid production pipe and two liquid separating pipe outer walls.
Furthermore, the gas production wellhead suitable for the low-temperature environment further comprises a middle shaft rotating on the liquid production pipe, a conveying pipe rotating on the middle shaft, a communicating pipe rotating on the conveying pipe and the liquid production pipe, and a pushing frame fixedly connected on the middle shaft.
Furthermore, a circulating pipe is arranged on the pushing frame and communicated with the communicating pipe.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic view of the heating of the exterior of a production pipe;
fig. 2 is a schematic view of the heating of the interior of the production pipe;
FIG. 3 is a schematic view of the inside of the liquid extraction pipe;
FIG. 4 is a schematic diagram of a gas production configuration;
FIG. 5 is a schematic view of the heating of the gas production tube;
FIG. 6 is a schematic view of a structure for keeping heat of a heat-keeping pipe warm;
FIG. 7 is a schematic view of a structure for detecting the sealability of both sides of a shield case;
FIG. 8 is a schematic view of a structure for detecting the sealability of the upper side of the shield case;
FIG. 9 is a schematic diagram of a portion of the structure shown in FIG. 8;
fig. 10 is a schematic diagram of a gas recovery wellhead.
Detailed Description
Referring to fig. 1, the implementation process of the gas production wellhead working in the low temperature environment is described in detail:
a gas production wellhead suitable for low-temperature environment, which comprises a liquid production pipe 11, wherein two liquid distribution pipes 12 are fixedly connected on the liquid production pipe 11, the liquid production pipe 11 mainly collects liquid, in a low-temperature environment, gas production is affected due to the fact that liquid is easy to freeze, if a large amount of water exists in the liquid collected in the liquid production pipe 11, when water is condensed, the volume is increased and the pipeline is fractured, in order to ensure that the liquid collecting pipe 11 can work normally in a low-temperature environment, the outer walls of the liquid collecting pipe 11 and the two liquid distributing pipes 12 are fixedly connected with outer heat pipes 13, the outer heat pipes 13 are connected with external heating equipment to provide hot water into the outer heat pipes 13, the circulation of the hot water is realized through the outer heat pipes 13, and then heating the liquid collecting pipe 11 and the two liquid distributing pipes 12 through the outer heat pipe 13, ensuring that the collected liquid keeps liquid state and smoothly flows, and preventing the freezing of the liquid and the expansion and cracking of the pipeline.
With the above embodiments, the following functions can also be realized;
referring to fig. 2 and 3, the implementation process of preventing the liquid in the liquid production pipe from condensing out solids and attaching to the inner wall of the liquid production pipe to affect liquid production and gas production is described in detail:
the central shaft 21 is rotatably connected to the liquid sampling pipe 11, the delivery pipe 22 is rotatably connected to the central shaft 21, the delivery pipe 22 and the liquid sampling pipe 11 are rotatably connected to a communication pipe 23, a pushing frame 24 is fixedly connected to the central shaft 21, the delivery pipe 22 is connected with external heating equipment and exchanges hot water with the delivery pipe 22, hot water circulation is realized through the communication pipe 23 and the pushing frame 24, when liquid is condensed in the liquid sampling pipe 11, the condensed liquid is heated, the outer side of the liquid sampling pipe 11 is heated through the outer heat pipe 13, heating of the inner side and the outer side of the condensed liquid is realized, quick thawing of the condensed liquid is realized, normal liquid sampling and gas sampling is realized, the central shaft 21 can drive the pushing frame 24 to rotate through rotation, further, the substances in the liquid sampling pipe 11 are pushed, and when the liquid begins to be solidified, crushing and pushing effects can be realized, prevent that the solidification of part liquid from causing the jam of the 11 inner spaces of liquid production pipe, further cause and solidify completely in the liquid production pipe 11, the unable circulation of liquid, and then the reliable liquid production of guarantee liquid production pipe 11 under low temperature environment, also guarantee the quick thawing when liquid solidifies appearing in liquid production pipe 11 to the quick going on of liquid production work of carrying out prevents that liquid production pipe 11 from blockking up for a long time, unfreezes slowly, can not in time participate in the liquid production work.
With the above embodiments, the following functions can also be realized;
referring to fig. 3, the implementation of the circulation of water entering the delivery pipe and the communication pipe is detailed:
the pushing frame 24 is provided with a circulating pipe which is communicated with the communicating pipe 23, hot water provided by external heat supply equipment enters through a connecting pipe of the conveying pipe 22 and then enters the communicating pipe 23, enters the circulating pipe on the pushing frame 24 through the communicating pipe 23 and then flows back to the communicating pipe 23 from the circulating pipe, and then flows back to the conveying pipe 22 from the communicating pipe 23 and then flows back to the external heat supply equipment from the conveying pipe 22 to complete hot water circulation, so that the heating of the interior of the liquid production pipe 11 is completed, the solidified liquid in the liquid production pipe 11 can be effectively unfrozen, and the reliable liquid production of the liquid production pipe 11 is ensured.
With the above embodiments, the following functions can also be realized;
referring to fig. 3, the implementation process of cleaning the attachments of the fluid production pipe is described in detail:
be provided with the spiral impeller on propelling movement frame 24, rotation through axis 21 drives the spiral impeller and rotates, pivoted spiral impeller is to adopting 11 inner walls of liquid pipe and cleaning, and simultaneously, the spiral impeller can accelerate and slow down the liquid that flows, and then realize adjusting the velocity of flow of the liquid that flows, and then can realize adjusting adopting liquid speed, the spiral impeller hugs closely at adopting 11 inner walls of liquid pipe, the adnexed material is scraped on adopting 11 inner walls of liquid pipe to pivoted spiral impeller, prevent that the liquid of condensing from attaching to and causing the jam at adopting 11 inner walls of liquid pipe, thereby cause further liquid to condense and attach, with adopting 11 complete blockages of liquid pipe, make the normal clear of adopting liquid unable.
With the above embodiments, the following functions can also be realized;
with reference to fig. 4 and 5, the gas production process is explained in detail:
equal fixedly connected with outer tube 33 on two liquid distribution pipes 12, two outer tubes 33 cover the outside of two outer heat pipes 13 that liquid distribution pipe 12 outside cover was established, the heat of two outer tubes 33 outside cover outer heat pipes 13 of establishing two liquid distribution pipes 12 outside covers keeps warm, prevent that the loss from appearing in the heat, cause thermal scattering and disappearing, two outer tubes 33 fixed connection are on being responsible for 31, be responsible for 31 and go up two gas production pipes 32 of fixedly connected with, carry out the gas production through the space of being responsible for 31 and gas production pipe 11, two gas production pipes 32 of rethread carry out the transportation of natural gas, and then realize the gas production, axis 21 fixed connection is on the output shaft of gear motor I, gear motor I fixed connection is on being responsible for 31, start gear motor I drives axis 21 and rotates, and then realize cleaning the liquid that the gas production pipe 11 condenses.
With the above embodiments, the following functions can also be realized;
referring to fig. 5, the implementation of two gas production pipes for transporting natural gas and reverse heat preservation is detailed:
two gas production pipes 32 overcoat is equipped with insulating tube 41, and insulating tube 41 can communicate the circulation that forms the hot water with the heating equipment of peripheral hardware, and then heats two gas production pipes 32, prevents to freeze after the doped vapor is cooled and condenses into liquid in the natural gas, consequently, through heating two gas production pipes 32, prevents to freeze, hinders the collection of natural gas.
With the above embodiments, the following functions can also be realized;
referring to fig. 6, an implementation process for improving the heat utilization rate of the heat preservation pipe is described in detail:
fixedly connected with protecting crust 51 is gone up to the person in charge 31 and two gas production pipes 32, is provided with sealedly in the junction of protecting crust 51, prevents the loss of natural gas, and protecting crust 51 cover keeps warm on insulating tube 41 to the heat of insulating tube 41, prevents thermal loss, and then improves thermal utilization ratio, prevents to produce thermal waste.
With the above embodiments, the following functions can also be realized;
referring to fig. 7, the sealing inspection process performed on the connection between the two gas production pipes and the protective shell before gas production is described in detail:
the two gas production pipes 32 are fixedly connected with guide gear rings 61, the two gas production pipes 32 are rotatably connected with frames 62, the two frames 62 are fixedly connected with spray pots 64, the two frames 62 are rotatably connected with gears 63, the two gears 63 are respectively fixedly connected to output shafts of the two gear motors II, the two gear motors II are respectively fixedly connected to the corresponding frames 62, the two gear motors II are started, the two gear motors II drive the two gears 63 to rotate, the two gears 63 are meshed with each other to drive the two guide gear rings 61, the two gears 63 rotate around the two guide gear rings 61, the two frames 62 are further rotated, the two spray pots 64 are further driven to rotate around the two gas production pipes 32, the two spray pots 64 are filled with soapy water, and the two spray pots 64 spray the soapy water at the joints of the two gas production pipes 32 and the protective shell 51, and detecting the air sealing position to detect whether air leakage occurs or not so as to influence the gas production.
With the above embodiments, the following functions can also be realized;
with reference to fig. 8 and 9, the implementation of the detection of the seal at the junction of the main pipe and the protective shell is described in detail:
fixedly connected with thread bush 71 on being responsible for 31, there is the lifter plate 72 through threaded connection on the thread bush 71, two detection kettles 73 of fixedly connected with on the lifter plate 72, two water jets that detect kettle 73 correspond with the junction of protecting crust 51 upside, the lifter plate 72 can rotate under the direction of thread bush 71 at the in-process that goes up and down, the lifter plate 72 drives two detection kettles 73 and rotates, two soapy water that detect loading in the kettle 73 spray at the junction of protecting crust 51 and being responsible for 31, whether bubble through observing soapy water, come the inspection sealed whether produce to reveal that causes the gas production, influence the collection of natural gas.
With the above embodiments, the following functions can also be realized;
referring to fig. 9 and 10, the implementation process of driving the lifting plate to lift is described in detail:
two cylinders 75 of fixedly connected with on the protecting crust 51 extension board, equal fixedly connected with power plate 74 on the cylinder pole of two cylinders 75, lifter plate 72 and two power plate 74 rotate to be connected, start two cylinders 75, two cylinders 75 drive two power plates 74 and go up and down, and two power plates 74 drive lifter plate 72 and go up and down to the realization is to the sealed inspection of junction.
Claims (10)
1. The utility model provides a gas production well head suitable for low temperature environment which characterized in that: the device comprises a liquid collecting pipe (11), two liquid separating pipes (12) fixedly connected to the liquid collecting pipe (11), and outer heat pipes (13) arranged on the outer walls of the liquid collecting pipe (11) and the two liquid separating pipes (12).
2. A gas production wellhead adapted for use in a cryogenic environment, according to claim 1, in which: the device also comprises a middle shaft (21) rotating on the liquid production pipe (11), a conveying pipe (22) rotating on the middle shaft (21), a communicating pipe (23) rotating on the conveying pipe (22) and the liquid production pipe (11), and a pushing frame (24) fixedly connected on the middle shaft (21).
3. A gas production wellhead adapted for use in a cryogenic environment as claimed in claim 2, in which: the pushing frame (24) is provided with a circulating pipe, and the circulating pipe is communicated with the communicating pipe (23).
4. A gas production wellhead adapted for use in a cryogenic environment as claimed in claim 2, in which: the pushing frame (24) is provided with a spiral impeller.
5. A gas production wellhead adapted for use in a cryogenic environment as claimed in claim 2, in which: the heat-insulating device also comprises an outer sleeve (33) for insulating the outer heat pipe (13), a main pipe (31) fixedly connected to the two outer sleeves (33), and two gas production pipes (32) fixedly connected to the main pipe (31).
6. A gas production wellhead suitable for use in low temperature environments as claimed in claim 5, in which: also comprises a heat preservation pipe (41) fixedly connected with the two gas production pipes (32).
7. A gas production wellhead suitable for use in low temperature environments as claimed in claim 6, in which: the device also comprises a protective shell (51) fixedly connected to the main pipe (31) and the two gas production pipes (32), and the protective shell (51) is sleeved on the heat preservation pipe (41).
8. A gas production wellhead adapted for use in cryogenic environments as claimed in claim 7, in which: the device also comprises two guide gear rings (61) fixedly connected to the two gas production pipes (32), two frames (62) rotating on the two gas production pipes (32), two water spraying pots (64) fixedly connected to the two frames (62), and two gears (63) rotating on the two frames (62) and meshed with the two guide gear rings (61).
9. A gas production wellhead adapted for use in a cryogenic environment as claimed in claim 8, in which: the device is characterized by further comprising a threaded sleeve (71) fixedly connected to the main pipe (31), a lifting plate (72) connected to the threaded sleeve (71) through threads, and two detection kettles (73) fixedly connected to the lifting plate (72), wherein water spray nozzles of the two detection kettles (73) correspond to the connection position of the upper side of the protective shell (51).
10. A gas production wellhead adapted for use in a cryogenic environment as claimed in claim 9, in which: the device also comprises two air cylinders (75) fixedly connected on the extending plate of the protective shell (51) and two power plates (74) fixedly connected on the air cylinder rods of the two air cylinders (75) and driving the lifting plate (72) to lift.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210417993.7A CN114922589B (en) | 2022-04-20 | 2022-04-20 | Gas production wellhead suitable for low-temperature environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210417993.7A CN114922589B (en) | 2022-04-20 | 2022-04-20 | Gas production wellhead suitable for low-temperature environment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114922589A true CN114922589A (en) | 2022-08-19 |
| CN114922589B CN114922589B (en) | 2023-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210417993.7A Active CN114922589B (en) | 2022-04-20 | 2022-04-20 | Gas production wellhead suitable for low-temperature environment |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080236809A1 (en) * | 2007-03-26 | 2008-10-02 | J.I. Livingstone Enterprises Inc. | Drilling, completing and stimulating a hydrocarbon production well |
| CN102003168A (en) * | 2010-11-01 | 2011-04-06 | 四川久大制盐有限责任公司 | Leaked rock salt cavity low pressure mining technique |
| CN202441331U (en) * | 2012-02-22 | 2012-09-19 | 中国石油化工股份有限公司 | Paraffin removal device for oil well |
| CN208294481U (en) * | 2018-06-01 | 2018-12-28 | 重庆腾钢机械有限责任公司 | A kind of oil recovery tree device |
| CN211287622U (en) * | 2019-12-04 | 2020-08-18 | 郭锐 | Wax-scraping and wax-preventing device for oil extraction |
| CN113338860A (en) * | 2021-07-14 | 2021-09-03 | 李宝娟 | Water-mixing combined wellhead device with anti-freezing and anti-blocking functions |
-
2022
- 2022-04-20 CN CN202210417993.7A patent/CN114922589B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080236809A1 (en) * | 2007-03-26 | 2008-10-02 | J.I. Livingstone Enterprises Inc. | Drilling, completing and stimulating a hydrocarbon production well |
| CN102003168A (en) * | 2010-11-01 | 2011-04-06 | 四川久大制盐有限责任公司 | Leaked rock salt cavity low pressure mining technique |
| CN202441331U (en) * | 2012-02-22 | 2012-09-19 | 中国石油化工股份有限公司 | Paraffin removal device for oil well |
| CN208294481U (en) * | 2018-06-01 | 2018-12-28 | 重庆腾钢机械有限责任公司 | A kind of oil recovery tree device |
| CN211287622U (en) * | 2019-12-04 | 2020-08-18 | 郭锐 | Wax-scraping and wax-preventing device for oil extraction |
| CN113338860A (en) * | 2021-07-14 | 2021-09-03 | 李宝娟 | Water-mixing combined wellhead device with anti-freezing and anti-blocking functions |
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| Publication number | Publication date |
|---|---|
| CN114922589B (en) | 2023-01-31 |
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