CN105239953A - Blowout-preventive operation device for lifting and lowering rod pipe under pressure - Google Patents
Blowout-preventive operation device for lifting and lowering rod pipe under pressure Download PDFInfo
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- CN105239953A CN105239953A CN201510681233.7A CN201510681233A CN105239953A CN 105239953 A CN105239953 A CN 105239953A CN 201510681233 A CN201510681233 A CN 201510681233A CN 105239953 A CN105239953 A CN 105239953A
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- packing element
- pressure
- blowout
- urceolus
- outer packing
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- 230000003373 anti-fouling effect Effects 0.000 claims abstract description 5
- 238000012856 packing Methods 0.000 claims description 48
- 238000007789 sealing Methods 0.000 claims description 13
- 239000003381 stabilizer Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 2
- 238000005086 pumping Methods 0.000 abstract description 3
- 230000001174 ascending effect Effects 0.000 abstract 1
- 230000002457 bidirectional effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention provides a blowout-preventive operation device for lifting and lowering a rod pipe under pressure. The technical scheme includes that the blowout-preventive operation device is mainly composed of a sucker rod clamping tile blowout preventer (1), a bidirectional clamping tile (2), a moving cross beam (3), a stabilizing rod (4), a lifting piston (5), a double-pressure blowout preventer (6), an anti-fouling barrel (7), an ascending four-way joint (8), a lifting hydraulic cylinder (9), a rod pipe clamping tile (10), a sucker rod half seal (11), an oil pipe half seal (12) and a whole seal (13). The blowout-preventive operation device has the advantages that lifting and lowering a sucker rod and an oil pipe of an under-pressure non-killing well and blowout operation of a downhole tool can be realized, non-well-killing under-pressure blowout operation can be performed on an oil pumping well with wellhead pressure not exceeding 5MPa, a stratum of a high-pressure well can be protected from well killing damage, and oil field development effect is improved.
Description
One, technical field
The present invention is oil well technical field, especially with pressurely removes rod tube gushing-proof operation equipment.
Two, background technology
When having the oil-water well of pressure to need construction operation for well head, generally all adopt high density well control fluids to carry out kill-job, make well liquid column pressure stressor layer above Ground, make its operation wellhead pressure be zero, blowout can not occur, shaft mouth operation construction can be opened wide.Adopt the way of kill-job to eliminate well head pressure, need a large amount of manpower and materials, also can cause formation contaminant, cause formation pore blocked, affect field produces, cause heavy economic losses.For above-mentioned Problems existing, relevant technologies staff development workover operation device with pressure, make it not need kill-job when well head has pressure during operation, as Chinese patent application 201310133867.X " no killing well operation device under pressure ", realize the equipment of snubbing serving with pressure exactly.But this technology can only with pressure oil pipe, downhole tool, can not with pressure sucker rod, be not suitable for the with pressure aboveground use having sucker rod in well, the structure constraint of rotary flange, high pressure can not be born, so above-mentioned patent is also not suitable for the Operating Pressure of well head pressure more than 5MPa.
Three, summary of the invention
The object of the invention is the deficiency for existing in above-mentioned technology; design one is with pressure removes rod tube gushing-proof operation equipment; sucker rod, oil pipe, downhole tool can be sealed simultaneously; the with pressure aboveground operation of sucker rod can had; well head pressure is avoided to carry out kill job more than the pumpingh well of 5MPa; protection stratum is not injured by kill-job, improves Development Response of Oilfield.
The object of the present invention is achieved like this: with pressurely remove rod tube gushing-proof operation equipment, primarily of sucker rod slips preventer, bi-directional slip, travelling crossbeam, lifting piston, raise four-way, lifting hydraulic cylinder, rod tube slips, sucker rod half envelope, oil pipe half envelope and full envelope device are formed, lifting hydraulic cylinder is fixed on around well head, lifting piston in lifting hydraulic cylinder supports travelling crossbeam, travelling crossbeam installs bi-directional slip, bi-directional slip is installed sucker rod slips preventer, rod tube slips, sucker rod half envelope, oil pipe half envelope, to be arranged on after full envelope device links into an integrated entity on wellhead assembly and with wellhead assembly coaxial line, rod tube slips is installed and raises four-way, raise on four-way and two pressure preventer is installed, the both sides raising four-way are open-minded, raise four-way bottom to communicate with rod tube slips, top communicates with two pressure preventer.
Two pressure preventer comprises top cover, upper press cover, upper sealing ring, self-styled packing element, outer packing element, urceolus, lower seal, bottom, bottom is connected with the bottom of urceolus, outer packing element is arranged in urceolus, cavity is had between outer packing element and urceolus, there is pressurizing port at the middle part of urceolus, pressurizing port and cavity UNICOM, pressurizing port there is screw thread, screw thread can connect sealing plug, the pressure squeezing into cavity is not leaked, lower seal is had between the lower surface of outer packing element and the inner face of bottom, upper press cover is connected with the top of urceolus, upper sealing ring is had between the upper surface of the outer packing element of upper press cover, outer packing element can not play between upper press cover and bottom, upper sealing ring, the pressure of lower seal sealed cavity does not leak, self-styled packing element is suspended on the upper surface of upper press cover, the lower cylinder of self-styled packing element stretches in outer packing element, annular space is had between self-styled packing element and outer packing element, top cover is connected with upper press cover after fastening the top of self-styled packing element.
Antifouling cylinder is installed in the periphery of two pressure preventer.
The lower end of lifting hydraulic cylinder top stable connection bar, the upper end of stabiliser bar is connected on workover derrick.
The invention has the beneficial effects as follows: self-styled packing element can seal sucker rod also can seal oil pipe and downhole tool, by alternately switching rod tube slips, sucker rod half envelope, oil pipe half envelope, sucker rod slips preventer, bi-directional slip operating hydraulically operated lifting piston makes it be elevated, just can realize the preventing spraying operation of no killing well with pressure difference actuating oil-pumping unit and oil pipe and downhole tool, two pressure preventers of design can squeeze into pressure in well head pressure higher than during 5MPa in cavity, the internal diameter of its outer packing element is made to reduce the self-styled packing element of extruding, make it can carry out no killing well preventing spraying operation with pressure on the pumpingh well of well head pressure more than 5MPa, well head pressure can be made higher than the oil well no killing well of 5MPa, the stratum of this kind of high-pressure well is protected, do not injured by kill-job, improve Development Response of Oilfield, therefore, the present invention has significant economic benefit.
Four, accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of the two pressure preventer of the present invention.
Five, detailed description of the invention
Below in conjunction with Fig. 1, Fig. 2, the embodiment of the present invention is described.
As Fig. 1, shown in Fig. 2, with pressurely remove rod tube gushing-proof operation equipment, primarily of sucker rod slips preventer 1, bi-directional slip 2, travelling crossbeam 3, stabiliser bar 4, lifting piston 5, two pressure preventer 6, antifouling cylinder 7, raise four-way 8, lifting hydraulic cylinder 9, rod tube slips 10, sucker rod half envelope 11, oil pipe half envelope 12 and full envelope device 13 are formed, lifting hydraulic cylinder 9 is fixed on around well head, the lifting piston 5 that lifting hydraulic cylinder is 9 li supports travelling crossbeam 3, travelling crossbeam 3 installs bi-directional slip 2, bi-directional slip 2 is installed sucker rod slips preventer 1, lifting piston 5 can drive sucker rod slips preventer 1 under hydraulic action, bi-directional slip 2, travelling crossbeam 3 is elevated, rod tube slips 10, sucker rod half envelope 11, oil pipe half envelope 12, to be arranged on after full envelope device 13 links into an integrated entity on wellhead assembly and with wellhead assembly coaxial line, rod tube slips 10 is installed and raises four-way 8, raise on four-way 8 and install two pressure preventer 6, the both sides raising four-way 8 are opened and can be installed balance palace gate, reducing valve, raises four-way 8 bottom and communicates with rod tube slips 10, and top communicates with two pressure preventer 6.Two pressure preventer 6 comprises top cover 6-1, upper press cover 6-2, upper sealing ring 6-3, self-styled packing element 6-4, outer packing element 6-7, urceolus 6-8, lower seal 6-9, bottom 6-10, bottom 6-10 is connected with the bottom of urceolus 6-8, outer packing element 6-7 is arranged in urceolus 6-8, cavity 6-5 is had between outer packing element 6-7 and urceolus 6-8, there is pressurizing port 6-6 at the middle part of urceolus 6-8, pressurizing port 6-6 and cavity 6-5 UNICOM, pressurizing port 6-6 there is screw thread, screw thread can connect sealing plug, the pressure squeezing into described cavity 6-5 is not leaked, lower seal 6-9 is had between the lower surface of outer packing element 6-7 and the inner face of bottom 6-10, upper press cover 6-2 is connected with the top of urceolus 6-8, upper sealing ring 6-3 is had between the upper surface of the outer packing element 6-7 of upper press cover 6-2, outer packing element 6-7 can not play between upper press cover 6-2 and bottom 6-10, upper sealing ring 6-3, the pressure of lower seal 6-9 sealed cavity 6-5 does not leak, self-styled packing element 6-4 is suspended on the upper surface of upper press cover 6-2, the lower cylinder of self-styled packing element 6-4 stretches in outer packing element 6-7, annular space is had between self-styled packing element 6-4 and outer packing element 6-7, major diameter instrument is not retrained by outer packing element 6-7 by during self-styled packing element 6-4 enlarged outside diameter, top cover 6-1 is connected with upper press cover 6-2 after fastening the top of self-styled packing element 6-4.Antifouling cylinder 7 is installed in the periphery of two pressure preventer 6, the greasy dirt under being drawn together by self-styled packing element 6-3 when can gather up lower sucker rod, oil pipe, ensures that wellhead assembly cleans, convenient construction operation.The lower end of stable connection bar 4 on lifting hydraulic cylinder 9, the upper end of stabiliser bar 4 is connected on workover derrick, makes lifting hydraulic cylinder 9 guarantee when supporting the sucker rod slips preventer 1 of on-load, bi-directional slip 2, travelling crossbeam 3 stablely not wave.
Pulling force above and below bi-directional slip 2 can bear, makes sucker rod or oil pipe upwards not gone out by blowing force, also can ensure to glide under the deadweight of sucker rod or oil pipe.
During actuating oil-pumping unit with pressure, the sucker rod slips in sucker rod slips preventer 1, bi-directional slip 2, rod tube slips 10, sucker rod half envelope 11 work, by alternately switch tripped out or under enter.
When with pressure oil pipe or downhole tool, the tubing slip in bi-directional slip 2, rod tube slips 10, oil pipe half envelope 12 work, by alternately switch tripped out or under enter.
In order to blowout prevention after sucker rod, oil pipe trip out, entirely will seal device 13 and close, oil well this can not there is blowout.
When well head pressure will carry out preventing spraying operation with pressure more than 5MPa, suppressed by the cavity 6-5 between pressurizing port 6-6 outside packing element 6-7 and urceolus 6-8, outer packing element internal diameter is reduced and encases self-styled packing element 6-4, just can increase sealing load, realize high-pressure well preventing spraying operation with pressure.
Claims (4)
1. with pressurely remove rod tube gushing-proof operation equipment, it is characterized in that: lifting hydraulic cylinder (9) is fixed on around well head, the inner lifting piston (5) of lifting hydraulic cylinder (9) supports travelling crossbeam (3), travelling crossbeam (3) installs bi-directional slip (2), bi-directional slip (2) is upper installs sucker rod slips preventer (1), rod tube slips (10), sucker rod half envelope (11), oil pipe half envelope (12), to be arranged on after full envelope device (13) links into an integrated entity on wellhead assembly and with wellhead assembly coaxial line, the upper installation of rod tube slips (10) raises four-way (8), raise the two pressure preventer (6) of the upper installation of four-way (8), the both sides raising four-way (8) are open-minded, raise four-way (8) bottom to communicate with rod tube slips (10), top communicates with two pressure preventer (6).
2. according to claim 1ly with pressurely remove rod tube gushing-proof operation equipment, it is characterized in that: two pressure preventer (6) comprises top cover (6-1), upper press cover (6-2), upper sealing ring (6-3), self-styled packing element (6-4), outer packing element (6-7), urceolus (6-8), lower seal (6-9), bottom (6-10), bottom (6-10) is connected with the bottom of urceolus (6-8), outer packing element (6-7) is arranged in urceolus (6-8), cavity (6-5) is had between outer packing element (6-7) and urceolus (6-8), there is pressurizing port (6-6) at the middle part of urceolus (6-8), pressurizing port (6-6) and cavity (6-5) UNICOM, pressurizing port (6-6) there is screw thread, screw thread can connect sealing plug, the pressure squeezing into cavity (6-5) is not leaked, lower seal (6-9) is had between the lower surface of outer packing element (6-7) and the inner face of bottom (6-10), upper press cover (6-2) is connected with the top of urceolus (6-8), upper sealing ring (6-3) is had between the upper surface of the outer packing element (6-7) of upper press cover (6-2), outer packing element (6-7) can not play between upper press cover (6-2) and bottom (6-10), upper sealing ring (6-3), the pressure of lower seal (6-9) sealed cavity (6-5) does not leak, self-styled packing element (6-4) is suspended on the upper surface of upper press cover (6-2), the lower cylinder of self-styled packing element (6-4) stretches in outer packing element (6-7), annular space is had between self-styled packing element (6-4) and outer packing element (6-7), be connected with upper press cover (6-2) after top cover (6-1) fastens the top of self-styled packing element (6-4).
3. according to claim 1 and 2ly with pressurely remove rod tube gushing-proof operation equipment, it is characterized in that: antifouling cylinder (7) is installed in the periphery of described pair of pressure preventer (6).
4. according to claim 1 and 2ly with pressurely remove rod tube gushing-proof operation equipment, it is characterized in that: the lower end on described lifting hydraulic cylinder (9) top stable connection bar (4), the upper end of stabiliser bar (4) is connected on workover derrick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510681233.7A CN105239953A (en) | 2015-10-20 | 2015-10-20 | Blowout-preventive operation device for lifting and lowering rod pipe under pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510681233.7A CN105239953A (en) | 2015-10-20 | 2015-10-20 | Blowout-preventive operation device for lifting and lowering rod pipe under pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105239953A true CN105239953A (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510681233.7A Pending CN105239953A (en) | 2015-10-20 | 2015-10-20 | Blowout-preventive operation device for lifting and lowering rod pipe under pressure |
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| Country | Link |
|---|---|
| CN (1) | CN105239953A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327280A (en) * | 2017-09-14 | 2017-11-07 | 胜利方兰德石油装备股份有限公司 | Vehicular list oil cylinder lower oil tube operation device under pressure |
| CN107859499A (en) * | 2016-09-22 | 2018-03-30 | 中国石油天然气股份有限公司 | A pressure working device |
| CN108019178A (en) * | 2017-11-23 | 2018-05-11 | 中国石油集团渤海钻探工程有限公司 | A kind of construction method that non-stop plugging in pipe is carried out to flow string |
| CN112227997A (en) * | 2020-11-17 | 2021-01-15 | 刘希明 | Coal bed gas pressurized well repairing device and well repairing method |
| CN118110459A (en) * | 2022-11-29 | 2024-05-31 | 大庆油田有限责任公司 | A universal three-type pressure operation device for oilfield rod and pipe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4582293A (en) * | 1982-01-06 | 1986-04-15 | Koomey Blowout Preventers, Inc. | Hydraulically operated valves |
| US5044602A (en) * | 1990-07-27 | 1991-09-03 | Double-E, Inc. | Blowout preventer |
| CN201771464U (en) * | 2010-07-15 | 2011-03-23 | 江苏省金峰石油机械制造有限公司 | Slip Combined Sucker Rod BOP |
| CN102678080A (en) * | 2011-03-16 | 2012-09-19 | 胜利方兰德石油装备股份有限公司 | Double-stage lifting oil-water well snubbing operation device |
| CN103195376A (en) * | 2012-10-30 | 2013-07-10 | 胜利方兰德石油装备股份有限公司 | Well-uncontrolled snubbing device |
| CN205063886U (en) * | 2015-10-20 | 2016-03-02 | 胜利方兰德石油装备股份有限公司 | Area has been pressed lower beam pipe and has been prevented spouting operation device |
-
2015
- 2015-10-20 CN CN201510681233.7A patent/CN105239953A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4582293A (en) * | 1982-01-06 | 1986-04-15 | Koomey Blowout Preventers, Inc. | Hydraulically operated valves |
| US5044602A (en) * | 1990-07-27 | 1991-09-03 | Double-E, Inc. | Blowout preventer |
| CN201771464U (en) * | 2010-07-15 | 2011-03-23 | 江苏省金峰石油机械制造有限公司 | Slip Combined Sucker Rod BOP |
| CN102678080A (en) * | 2011-03-16 | 2012-09-19 | 胜利方兰德石油装备股份有限公司 | Double-stage lifting oil-water well snubbing operation device |
| CN103195376A (en) * | 2012-10-30 | 2013-07-10 | 胜利方兰德石油装备股份有限公司 | Well-uncontrolled snubbing device |
| CN205063886U (en) * | 2015-10-20 | 2016-03-02 | 胜利方兰德石油装备股份有限公司 | Area has been pressed lower beam pipe and has been prevented spouting operation device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859499A (en) * | 2016-09-22 | 2018-03-30 | 中国石油天然气股份有限公司 | A pressure working device |
| CN107859499B (en) * | 2016-09-22 | 2024-01-30 | 中国石油天然气股份有限公司 | Pressurized operation device |
| CN107327280A (en) * | 2017-09-14 | 2017-11-07 | 胜利方兰德石油装备股份有限公司 | Vehicular list oil cylinder lower oil tube operation device under pressure |
| CN107327280B (en) * | 2017-09-14 | 2023-06-09 | 胜利方兰德石油装备股份有限公司 | Vehicle-mounted single-cylinder oil pipe lifting and discharging operation device under pressure |
| CN108019178A (en) * | 2017-11-23 | 2018-05-11 | 中国石油集团渤海钻探工程有限公司 | A kind of construction method that non-stop plugging in pipe is carried out to flow string |
| CN108019178B (en) * | 2017-11-23 | 2020-07-03 | 中国石油集团渤海钻探工程有限公司 | Construction method for plugging production pipe column under pressure in pipe |
| CN112227997A (en) * | 2020-11-17 | 2021-01-15 | 刘希明 | Coal bed gas pressurized well repairing device and well repairing method |
| CN118110459A (en) * | 2022-11-29 | 2024-05-31 | 大庆油田有限责任公司 | A universal three-type pressure operation device for oilfield rod and pipe |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160113 |
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