CN114508318A - Assembled petroleum well head - Google Patents
Assembled petroleum well head Download PDFInfo
- Publication number
- CN114508318A CN114508318A CN202210167577.6A CN202210167577A CN114508318A CN 114508318 A CN114508318 A CN 114508318A CN 202210167577 A CN202210167577 A CN 202210167577A CN 114508318 A CN114508318 A CN 114508318A
- Authority
- CN
- China
- Prior art keywords
- pipe
- fixedly connected
- wellhead
- wall
- straight
- 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
Links
- 239000003208 petroleum Substances 0.000 title claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 51
- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims abstract description 9
- 238000010030 laminating Methods 0.000 claims abstract description 8
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 9
- 238000001914 filtration Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
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)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to a wellhead, in particular to an assembled petroleum wellhead, which comprises a lower pipe, an inner seat fixedly connected to the lower side of the inner wall of the lower pipe, a sealing ring I fixedly connected to the upper side of the inner wall of the lower pipe, an upper pipe detachably and fixedly connected to the upper side of the lower pipe, a liquid outlet pipe fixedly connected to and communicated with the upper pipe, a top cover detachably and fixedly connected to the upper end of the upper pipe, a sealing plug capable of being inserted into the sealing ring I to realize plugging, a joint part fixedly connected to the lower end of the sealing plug, and at least two straight rods I fixedly connected to the lower end of the joint part; wherein laminating portion sets up in the below of sealing ring I, and the cover has compression spring on the straight-bar I, and I sliding connection of straight-bar is on interior seat, compression spring's both ends are supported respectively on laminating portion and interior seat. May have a sealed condition when assembled.
Description
Technical Field
The invention relates to a wellhead, in particular to an assembled petroleum wellhead.
Background
For example, a petroleum industry wellhead equipment quick plugging device with publication number CN111963091A comprises a female connector, a male connector, a cylinder body, a piston, a guide sleeve, a manual stud, an indicating rod and a ball throwing mechanism; the female connector is provided with a pressure relief hole, a pressure measuring hole and a trap; a first quick joint is arranged at a pressure relief opening of the pressure relief hole; a pressure measuring port of the pressure measuring hole is provided with a test pressure gauge; the lower end of the male connector is arranged inside the upper end of the female connector; slips are arranged at the lower end of the male connector; the cylinder body is sleeved outside the upper end of the female connector; a second quick connector is arranged on the outer wall of the middle section of the cylinder body; the piston is sleeved outside the female connector; a spring is sleeved outside the female joint positioned inside the lower end of the piston; the upper end outer wall at public connector is located to the uide bushing cover, and the mechanism of batting matches and installs the upper end outer wall at public connector. The invention can achieve the function of quick plugging and unplugging, realize double control to meet the working requirement of an oil well, and effectively improve the working timeliness; but it can't realize sealed when assembling, and is comparatively inconvenient.
Disclosure of Invention
The invention provides a fabricated petroleum wellhead, aiming to have a sealing state during the fabrication.
The above purpose is realized by the following technical scheme:
an assembled petroleum well mouth comprises a lower pipe, an inner seat fixedly connected to the lower side of the inner wall of the lower pipe, a sealing ring I fixedly connected to the upper side of the inner wall of the lower pipe, an upper pipe detachably and fixedly connected to the upper side of the lower pipe, a liquid outlet pipe fixedly connected to and communicated with the upper pipe, a top cover detachably and fixedly connected to the upper end of the upper pipe, a sealing plug capable of being inserted into the sealing ring I to realize plugging, a joint part fixedly connected to the lower end of the sealing plug, and at least two straight rods I fixedly connected to the lower end of the joint part; wherein laminating portion sets up in the below of sealing ring I, and the cover has compression spring on the straight-bar I, and I sliding connection of straight-bar is on interior seat, compression spring's both ends are supported respectively on laminating portion and interior seat.
Drawings
FIG. 1 shows an assembled petroleum wellhead overall structure;
FIG. 2 is a cut-away view of the monolithic structure;
FIGS. 3 and 4 show the lower tube, inner seat, seal ring I, ramp;
FIG. 5 shows the upper tube, the retaining ring and the drain tube;
FIG. 6 shows a sealing plug, an annular groove, a fitting and a straight rod I;
FIG. 7 shows a straight rod II, an internal thread bush, a screw I, a screen cover, a wall body, a screen ring and a screen cover;
FIG. 8 highlights the screen ring and screen shroud;
FIG. 9 shows a three-way pipe, a seal ring II, a screw II, a plug plate, a linear drive mechanism and a connecting rod;
FIG. 10 highlights screw II and the plug plate.
Detailed Description
An assembled petroleum wellhead is shown in figures 1 to 6 and comprises a lower pipe 11, an inner seat 12, a sealing ring I13, an upper pipe 21, a liquid outlet pipe 23, a top cover 24, a sealing plug 31, an annular groove 32, a fitting part 33, a straight rod I34 and a top cover 81;
the lower pipe 11 is communicated vertically to form a vertical structure, the inner seat 12 is fixedly connected to the inner wall of the lower pipe 11 and located on the lower side, the sealing ring I13 is fixedly connected to the inner wall of the lower pipe 11 and located on the upper side, the upper pipe 21 is detachably and fixedly connected to the upper side of the lower pipe 11, the liquid outlet pipes 23 are fixedly connected to the upper pipe 21, the number of the liquid outlet pipes 23 is preferably two, the top cover 81 is detachably and fixedly connected to the upper end of the upper pipe 21, the sealing plug 31 can be inserted into the sealing ring I13 from bottom to top to achieve sealing, the attaching portion 33 is fixedly connected to the lower end of the sealing plug 31, at least two straight rods I34 are fixedly connected to the lower end of the attaching portion 33, and preferably three straight rods I34 are provided; wherein laminating portion 33 sets up in the below of sealing ring I13, and the cover has compression spring on the straight-bar I34, and straight-bar I34 sliding connection is on interior seat 12, compression spring's both ends are supported respectively on laminating portion 33 and interior seat 12.
Wherein the bottom of the lower pipe 11 is a liquid inlet, the lower pipe 11 is used as a butt joint pipe and is not frequently disassembled and assembled, and the part which is not the lower pipe 11 can be frequently disassembled and assembled for maintenance and transfer. The sealing plug 31 is kept to abut against the sealing ring I13 to realize sealing by providing upward elastic force through the compression spring, so that the one-way locking effect is realized, and the sealing plug 31 is pressed downwards to realize conduction.
The outer wall of the lower end of the lower pipe 11 is provided with an inclined surface 14, and the inclined surface 14 enables the outer diameter of the lower pipe 11 to be reduced from top to bottom so as to facilitate assembly.
The sealing plug also comprises a retaining ring 22 fixedly connected to the lower side of the inner wall of the upper tube 21 and an annular groove 32 arranged in the middle of the outer wall of the sealing plug 31; the bottom surface of the retaining ring 22 is fitted to the upper end surface of the lower tube 11, and the lower tube 11 is inserted into the upper tube 21 for increasing the sealing performance.
The sealing device further comprises a nut in threaded connection with the bottom of the straight rod I34, so that the sealing plug 31 can be prevented from bouncing off when the upper pipe 21 is taken down, and the straight rod I34 is prevented from being separated from the inner base 12.
The wellhead still include straight-bar II 41, straight-line actuating mechanism 71 and connecting rod 72, the preferred hollow structure of straight-bar II 41, the preferred pneumatic cylinder or electronic jar of straight-line actuating mechanism 71, the expansion end of straight-line actuating mechanism 71 sets up upwards, preferably, the one end of connecting rod 72 is rotated and is connected on the expansion end of straight-line actuating mechanism 71, the other end of connecting rod 72 passes through the upper end of bolt detachable rigid coupling at straight-bar II 41, so that take off the back with the bolt of connecting rod 72 and straight-bar II 41, it rotates again to raise connecting rod 72, can assemble or dismantle other parts.
The height of the straight rod II 41 can be adjusted by starting the linear driving mechanism 71, when the straight rod II 41 descends to press the sealing plug 31 to achieve conduction, and when the straight rod II 41 ascends to separate from the sealing plug 31 to achieve sealing.
As shown in fig. 7 and 8, the wellhead further includes a screen cover 44 slidably attached to the inner wall of the upper pipe 21, a filtering hole is formed in the screen cover 44, the straight rod ii 41 passes through the screen cover 44, the screen cover 44 is fixedly connected to the straight rod ii 41, the screen cover 44 performs a filtering function, the straight rod ii 41 and the screen cover 44 can be removed together by removing the upper pipe 21 or the top cover 81, and then the internal components which are difficult to clean can be taken out together for maintenance.
The wellhead further comprises a wall body 45, a screen ring 46 and a screen cover 47; the wall body 45 is an annular thin-wall structure and is fixedly connected to the lower end of the screen cover 44, the screen ring 46 is provided with screen holes and is fixedly connected to the lower end of the wall body 45, the screen cover 47 is provided with screen holes and is fixedly connected to the inner wall of the screen ring 46, the screen cover 47 is a conical surface structure with an upper opening and a lower opening, and the diameter of the screen cover 47 is increased from top to bottom.
The space enclosed by the screen cover 44, the wall body 45, the screen ring 46 and the screen cover 47 is convenient for containing impurities, and the impurities can be taken out together after all parts are taken out. The height of the second liftable straight rod 41 can be changed, the filtering part related to the screen cover 44 is lifted into the top cover 81, so that the filtering function is cancelled, the discharge capacity is increased, and the influence on the flow due to blockage is avoided.
The straight rod I41 is fixedly connected with the upper end of the straight rod II 41, the screw I43 is in threaded connection with the inner thread sleeve 42, the length of the screw I43 is larger than that of the straight rod II 41, and the screw I43 is located on and penetrates through the straight rod II 41.
When the straight rod II 41 is lifted, the rotatable screw I43 descends to enable the rotatable screw I to abut against the sealing plug 31 to keep a passage state, and the use is more flexible.
As shown in fig. 9 and 10, the wellhead further comprises a tee 51, a sealing ring ii 52 and a regulator, wherein the regulator comprises a screw ii 61 and a plug plate 62;
the three-way pipe 51 is provided with three openings which are communicated with each other, the two sealing rings II 52 are provided with two plug plates 62 which are fixedly connected to the inner wall of the three-way pipe 51, the two sealing rings II 52 are respectively positioned at the two openings, and the regulator comprises a screw II 61 and a plug plate 62 fixedly connected to the screw II 61; the two regulators are arranged in mirror symmetry, the two screws II 61 are in threaded connection with the three-way pipe 51 and used for adjusting the distance between the two plug plates 62, the two plug plates 62 can respectively abut against the two sealing rings II 52 to achieve sealing, the two liquid outlet pipes 23 are arranged, the three-way pipe 51 is fixedly connected and communicated with the two liquid outlet pipes 23, and the two sealing rings II 52 are respectively located at two connection positions of the two liquid outlet pipes 23 and the three-way pipe 51.
Further, one of the plug plates 62 is provided with a filtering hole.
After the filtering function in the upper pipe 21 is cancelled, the plug plate 62 with the filtering hole can be abutted to the corresponding sealing ring II 52 to play a temporary filtering role, so that an emergency effect is achieved, the other plug plate 62 is abutted to the corresponding sealing ring II 52 to be sealed, or the two plug plates 62 are respectively separated from the corresponding sealing ring II 52 to achieve the full-channel opening state for discharging.
Claims (10)
1. An assembled petroleum wellhead comprises a lower pipe (11), an inner seat (12) fixedly connected to the lower side of the inner wall of the lower pipe (11), a sealing ring I (13) fixedly connected to the upper side of the inner wall of the lower pipe (11), an upper pipe (21) detachably fixedly connected to the upper side of the lower pipe (11), a drain pipe (23) fixedly connected and communicated with the upper pipe (21), a top cover (81) detachably fixedly connected to the upper end of the upper pipe (21), a sealing plug (31) capable of being inserted into the sealing ring I (13) to achieve plugging, a joint part (33) fixedly connected to the lower end of the sealing plug (31), and at least two straight rods I (34) fixedly connected to the lower end of the joint part (33); wherein laminating portion (33) sets up in the below of sealing ring I (13), and the cover has compression spring on straight-bar I (34), and straight-bar I (34) sliding connection is on interior seat (12), compression spring's both ends are supported respectively on laminating portion (33) and interior seat (12).
2. The wellhead according to claim 1, wherein the outer wall of the lower end of the lower pipe (11) is provided with a bevel (14), and the bevel (14) enables the outer diameter of the lower pipe (11) to be reduced from top to bottom.
3. The wellhead according to claim 1, further comprising a retaining ring (22) fixedly connected to the lower side of the inner wall of the upper pipe (21), and an annular groove (32) arranged in the middle of the outer wall of the sealing plug (31); wherein the bottom surface of the abutting ring (22) is jointed with the upper end surface of the lower pipe (11), and the lower pipe (11) is inserted and matched in the upper pipe (21).
4. The wellhead as claimed in claim 1 further comprising a nut threaded on the bottom of the straight rod i (34).
5. A wellhead as claimed in any one of claims 1 to 4, further comprising a straight rod II (41) slidably connected to the upper end of the top cover (81), and a linear driving mechanism (71) mounted on the upper pipe (21) for driving the straight rod II (41) to ascend and descend.
6. A wellhead according to claim 5, further comprising a screen cover (44) slidably attached to the inner wall of the upper pipe (21), wherein the straight rod II (41) penetrates through the screen cover (44) and is fixedly connected with the screen cover.
7. A wellhead according to claim 6, and further comprising a wall body (45) fixedly connected to the lower end of the screen cover (44), a screen ring (46) fixedly connected to the lower end of the wall body (45), and a screen cover (47) fixedly connected to the inner wall of the screen ring (46), wherein the screen cover (47) is of a conical structure with an upper opening and a lower opening, and the diameter of the screen cover (47) is increased from top to bottom.
8. The wellhead as claimed in claim 7 further comprises an internal thread sleeve (42) fixedly connected to the upper end of the straight rod II (41), and a screw I (43) in threaded connection with the internal thread sleeve (42), wherein the length of the screw I (43) is larger than that of the straight rod II (41).
9. The wellhead according to claim 8, further comprising a tee pipe (51), two sealing rings II (52) fixedly connected to the inner walls of the two openings of the tee pipe (51), and a regulator, wherein the regulator comprises a screw II (61) and a plug plate (62) fixedly connected to the screw II (61); the regulator mirror symmetry is equipped with two, and two screw rods II (61) threaded connection are used for adjusting the interval of two cock boards (62) on three-way pipe (51), and two cock boards (62) can offset respectively with two sealing ring II (52) and realize sealedly, drain pipe (23) are equipped with two, and three-way pipe (51) and two drain pipe (23) rigid coupling and intercommunication, two sealing ring II (52) are located two departments of meeting of two drain pipe (23) and three-way pipe (51) respectively.
10. A wellhead as claimed in claim 9, wherein one of the plug plates (62) is provided with filter holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210167577.6A CN114508318B (en) | 2022-02-23 | 2022-02-23 | Assembled petroleum well head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210167577.6A CN114508318B (en) | 2022-02-23 | 2022-02-23 | Assembled petroleum well head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114508318A true CN114508318A (en) | 2022-05-17 |
| CN114508318B CN114508318B (en) | 2022-12-02 |
Family
ID=81554405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210167577.6A Active CN114508318B (en) | 2022-02-23 | 2022-02-23 | Assembled petroleum well head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114508318B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115637946A (en) * | 2022-12-23 | 2023-01-24 | 大庆市华禹石油机械制造有限公司 | Petroleum wellhead sealing device |
| CN115637947A (en) * | 2022-12-23 | 2023-01-24 | 大庆市华禹石油机械制造有限公司 | Pressure relief type petroleum well head |
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| US4241786A (en) * | 1978-05-02 | 1980-12-30 | Bullen Ronald S | Well tree saver |
| CN101225841A (en) * | 2008-01-22 | 2008-07-23 | 潘旭华 | Method for controlling cylinder piston motion |
| JP2009195802A (en) * | 2008-02-20 | 2009-09-03 | Tdk Corp | Mixer |
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| CN104612238A (en) * | 2015-01-08 | 2015-05-13 | 四川建筑职业技术学院 | Well head equipment with press type safety well lid |
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| CN209324305U (en) * | 2019-01-10 | 2019-08-30 | 王伟 | A kind of oil exploitation wellhead assembly |
| CN211777311U (en) * | 2019-12-12 | 2020-10-27 | 中国石油化工股份有限公司 | Integrated liquid-discharging type three-way double-light-rod oil production well head |
| CN111927371A (en) * | 2020-08-04 | 2020-11-13 | 华运隆腾机械制造有限公司 | High pressure resistant blowout prevention safety seal wellhead protection device |
| CN112049597A (en) * | 2019-06-06 | 2020-12-08 | 胜利油田胜利自动化开发有限责任公司 | Integrated wellhead blowout control and well sealing device |
| CN112065315A (en) * | 2020-09-15 | 2020-12-11 | 东营市正能石油科技有限公司 | Sand control fills integration wellhead assembly |
| JP6799774B1 (en) * | 2020-05-19 | 2020-12-16 | 杭州▲しん▼華信息科技有限公司 | Natural gas filter |
| CN212428721U (en) * | 2020-06-29 | 2021-01-29 | 天津滨海新区大港靖元机械制造有限公司 | Zero-friction oil production wellhead valve |
| CN113123751A (en) * | 2021-06-16 | 2021-07-16 | 东营政阳自动化科技有限公司 | Thermal recovery wellhead assembly |
| CN113464077A (en) * | 2021-07-06 | 2021-10-01 | 江苏腾龙石化机械有限公司 | Multifunctional petroleum wellhead |
| CN214576858U (en) * | 2021-01-16 | 2021-11-02 | 江苏庆海石油机械有限公司 | Well head device that leak protection performance is good |
| CN215485945U (en) * | 2021-08-09 | 2022-01-11 | 李玉均 | Environment-friendly oil recovery oil well head sealing device |
-
2022
- 2022-02-23 CN CN202210167577.6A patent/CN114508318B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4241786A (en) * | 1978-05-02 | 1980-12-30 | Bullen Ronald S | Well tree saver |
| CN101225841A (en) * | 2008-01-22 | 2008-07-23 | 潘旭华 | Method for controlling cylinder piston motion |
| JP2009195802A (en) * | 2008-02-20 | 2009-09-03 | Tdk Corp | Mixer |
| CN101644149A (en) * | 2009-08-25 | 2010-02-10 | 中国石油天然气集团公司 | Integral type level oil extraction wellhead equipment |
| CN104612238A (en) * | 2015-01-08 | 2015-05-13 | 四川建筑职业技术学院 | Well head equipment with press type safety well lid |
| CN209324305U (en) * | 2019-01-10 | 2019-08-30 | 王伟 | A kind of oil exploitation wellhead assembly |
| CN109826585A (en) * | 2019-03-07 | 2019-05-31 | 江苏腾龙石化机械有限公司 | A kind of oil well head device of easy disassembly |
| CN112049597A (en) * | 2019-06-06 | 2020-12-08 | 胜利油田胜利自动化开发有限责任公司 | Integrated wellhead blowout control and well sealing device |
| CN211777311U (en) * | 2019-12-12 | 2020-10-27 | 中国石油化工股份有限公司 | Integrated liquid-discharging type three-way double-light-rod oil production well head |
| JP6799774B1 (en) * | 2020-05-19 | 2020-12-16 | 杭州▲しん▼華信息科技有限公司 | Natural gas filter |
| CN212428721U (en) * | 2020-06-29 | 2021-01-29 | 天津滨海新区大港靖元机械制造有限公司 | Zero-friction oil production wellhead valve |
| CN111927371A (en) * | 2020-08-04 | 2020-11-13 | 华运隆腾机械制造有限公司 | High pressure resistant blowout prevention safety seal wellhead protection device |
| CN112065315A (en) * | 2020-09-15 | 2020-12-11 | 东营市正能石油科技有限公司 | Sand control fills integration wellhead assembly |
| CN214576858U (en) * | 2021-01-16 | 2021-11-02 | 江苏庆海石油机械有限公司 | Well head device that leak protection performance is good |
| CN113123751A (en) * | 2021-06-16 | 2021-07-16 | 东营政阳自动化科技有限公司 | Thermal recovery wellhead assembly |
| CN113464077A (en) * | 2021-07-06 | 2021-10-01 | 江苏腾龙石化机械有限公司 | Multifunctional petroleum wellhead |
| CN215485945U (en) * | 2021-08-09 | 2022-01-11 | 李玉均 | Environment-friendly oil recovery oil well head sealing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115637946A (en) * | 2022-12-23 | 2023-01-24 | 大庆市华禹石油机械制造有限公司 | Petroleum wellhead sealing device |
| CN115637947A (en) * | 2022-12-23 | 2023-01-24 | 大庆市华禹石油机械制造有限公司 | Pressure relief type petroleum well head |
| CN115637946B (en) * | 2022-12-23 | 2023-03-07 | 大庆市华禹石油机械制造有限公司 | Petroleum wellhead sealing device |
| CN115637947B (en) * | 2022-12-23 | 2023-03-10 | 大庆市华禹石油机械制造有限公司 | Pressure relief type petroleum well head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114508318B (en) | 2022-12-02 |
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