CN201401148Y - Expanding type capsule sealing anti-spray box - Google Patents
Expanding type capsule sealing anti-spray box Download PDFInfo
- Publication number
- CN201401148Y CN201401148Y CN2009200324518U CN200920032451U CN201401148Y CN 201401148 Y CN201401148 Y CN 201401148Y CN 2009200324518 U CN2009200324518 U CN 2009200324518U CN 200920032451 U CN200920032451 U CN 200920032451U CN 201401148 Y CN201401148 Y CN 201401148Y
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- China
- Prior art keywords
- sealing
- plug
- spray box
- box body
- blowout prevention
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 title claims abstract description 71
- 239000007921 spray Substances 0.000 title abstract 10
- 239000002775 capsule Substances 0.000 title abstract 4
- 230000002265 prevention Effects 0.000 claims description 38
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000005987 sulfurization reaction Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 2
- 239000003345 natural gas Substances 0.000 abstract 1
- 239000003209 petroleum derivative Substances 0.000 abstract 1
- 238000005086 pumping Methods 0.000 description 14
- 239000003921 oil Substances 0.000 description 7
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 241000269793 Cryothenia peninsulae Species 0.000 description 1
- 206010020852 Hypertonia Diseases 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model belongs to high-efficiency swabbing liquid drainage equipment in borehole operation in the petroleum and natural gas industry, which solves environmental pollution in the swabbing process and relates to an expanding type capsule sealing anti-spray box. The expanding type capsule sealing anti-spray box has the characteristics that: an inner cavity of an anti-spray box main body isa sealing plug cylinder; a guide wheel rack and an upper joint are fixed at the top end at the outer part of the anti-spray box main body, and guide wheels are connected on the guide wheel rack and the upper joint; two sealing rubber plugs are arranged in the anti-spray box main body, and a sealing head ring and a rubber ring are vulcanized at the two end parts of the sealing rubber plugs; a lower joint is connected at the lower part of the anti-spray box main body, and a leak-off pipe line joint is arranged at the position between the two sealing rubber plugs correspondingly to the anti-spray box main body; an upper pipe line joint and a lower pipe line joint are connected on the pipe wall at the position of the anti-spray box main body correspondingly to the two sealing rubber plugs, and the pipe line joints are connected with a pipe line which adopts a hydraulic source or an air source. The capsule sealing anti-spray box has the characteristics of good sealing effect, little environmental pollution, high utilizing rate against the rubber plugs, long service life and low cost.
Description
Technical field
The utility model belongs to the efficient pumping liquid discharging apparatus in the oil and gas industry underground work, is used for the sealing between pumping wire rope and the well head, prevents the well head leakage, solves the environment pollution that takes place in the pumping process, is a kind of blowout control box sealed by expanding rubber plug.
Background technology
In the existing pumping technology, when wire rope is sealed, because of the wire rope air spots is sliding, its sealing difficulty is very big, causes very big environment pollution when carrying out swabbing operation, is to be difficult to one of technical problem that solves in the Swab Technology for many years.
The general well head blowout prevention box that adopts has following 3 types:
A) hydraulic pressure compression plug formula blowout prevention box: its action principle is to adopt hydraulic jack will seal plug to carry out compressive strain in an annular cylinder barrel, then the pumping wire rope is held tightly, reaches sealing effectiveness; Its advantage is: good sealing effect has reached the seal request to wire rope on the pumping well head; Its shortcoming is when the hardness of plug is excessive, requires the hypertonia of hydraulic cylinder works, reaches 16MPa; When the hardness of plug was moderate, its piston can not be with whole plug compressive strains; When wear extent acquired a certain degree, the deflection of plug can not play sealing function to steel rope, and the plug of the overwhelming majority is thrown away as waste product, has wasted most rubber sources.The consumption that is to say its consumable accessory is surprising, and cost is too high during with this method locked coil wire rope.
B) pneumostop pumping blowout prevention box: its volume is little, in light weight, has the anti-top mechanism of going up of safety, and core technology is exactly: a circular cylinder promotes ring sealing plug wire rope is adopted wiper seal; Characteristics are good seal performance.But application life is short, the intact more seal of change steel rope of a bite well pumping sometimes, and reason is owing to adopt single sealing-plug to cause, and the pressure of power gas source is low, compressive force is little, and the hardness that seals plug is low, do not resistance to wear.
C) now use the sealed blowout prevention box of glueballs: what its outlet was adopted is two 4 " pipeline discharge opeing in jar, so its resistance to flow output is little; When mentioning pithead position bump blowout prevention box on the weighted lever of swab, be divided into two parts automatically and reach crashproof effect, be unlikely to the weighted lever coupling part broken and fall in the well.Ball in the seal box just plays a greasy dirt that wire rope is taken out of and adopts the form adhesive tape that rolls to reach the effect of oil strain on ball, and whole blowout prevention box is a pressure-bearing not, so its sealing effectiveness is very limited.During pumping on the steel wire with oil under wind action, greasy dirt blows to such an extent that be everywhere, so it is seriously polluted.Its biggest advantage is to seal without external impetus; Maximum shortcoming is poorly sealed, seriously polluted.
Summary of the invention
The purpose of this utility model provides a kind of blowout control box sealed by expanding rubber plug, and its good sealing effect, environment pollution are little, and low to utilization rate height, long service life, the cost of plug.
The technical solution of the utility model is: design a kind of blowout control box sealed by expanding rubber plug, it is characterized in that: blowout prevention box body inner chamber is the sealing-plug cylinder barrel; Be fixed with guiding wheel carrier and top connection in blowout prevention box body outer tip end, be connected with directive wheel in guiding wheel carrier and the top connection; Two sealing plugs are installed in the blowout prevention box body, and sealing headring and cushion rubber sulfuration are at the both ends of sealing plug; The bottom of blowout prevention box body connects lower contact, with the corresponding position of blowout prevention box body the leak-off pipe wire terminal is arranged between two sealing plugs, be connected with pipe joint and underground pipelines joint on the tube wall of blowout prevention box body and two middle correspondence positions of sealing plug, pipe joint connects the pipeline of hydraulic power source or source of the gas.
The two ends of described each sealing plug are connected with the steel loop of two sulfuration sealing rings, as the sealing headring of plug.
Characteristics of the present utility model are: this blowout control box sealed by expanding rubber plug, it is with the principle of hydraulic pressure or pneumatic compression plug locked coil wire rope, change the sealing principle of hydraulic pressure or air pressure expanding into, increased the lifting surface area that plug bears air pressure or hydraulic pressure, reduce plug and be out of shape needed pressure, increase the contact surface of plug and wire rope, improve sealing effectiveness.Though the good sealing effect of hydraulic pressure compression plug formula blowout prevention box, the wear extent of its sealing plug is very big, causes the seal failure of blowout prevention box, sealing plug to be scrapped, and waste is big, cost is high, so the utility model adopts following scheme to solve this problem:
1, changes the sealing principle of plug compressive strain: make plug directly contact hydraulic oil or air pressure,, control the sealing load control plug deflection of plug and wire rope by the size of air pressure or oil pressure; Rather than by hydraulic cylinder compressive strain increases the deflection of plug to plug, reach seal request to wire rope; Former relatively plug, new plug has increased its length, and then has strengthened its compression area, and the two ends design and installation of plug sealing ring, form airtight space between the outer steel cylinder that is in contact with it; When injecting air pressure or oil pressure to this space and reach 0.5～0.7MPa, the effect that plug just can be subjected to hydraulic pressure or air pressure produces inside dilatating and deformable, wire rope is held tightly seal.
2, this expanding seal box still adopts two sealing plugs, two steel loops that the sulfuration sealing ring is installed is set, as the sealing headring of plug at the two ends of each plug.
3, on the cylinder barrel outer wall of plug installation site, bore two holes, hydraulic oil or tracheae wire terminal are installed.
4, remove the hydraulic cylinder of traditional blowout prevention box.
5, adopt the new expanding sealing plug of former plug prescription processing, keep the sealing performance between its original plug and the wire rope.
6, keep original discharge orifice and pipe joint; Keep original wire rope directive wheel.
Adopt these backs of improving one's methods to form hydraulic pressure or air pressure blowout control box sealed by expanding rubber plug, its good sealing effect has solved the environment pollution in the pumping process, has improved the utilization rate of plug, has prolonged application life, reduces construction cost.
Description of drawings
Below in conjunction with the embodiment accompanying drawing the utility model is described further.
Fig. 1 is the example structure schematic diagram.
Among the figure: 1, pumping wire rope; 2, directive wheel; 3, guiding wheel carrier and top connection; 4, blowout prevention box body; 5, sealing headring and cushion rubber; 6, pipe joint; 7, sealing plug; 8, lower contact; 9, leak-off pipe wire terminal.
The specific embodiment
The blowout control box sealed by expanding rubber plug of embodiment, be to adopt hydraulic pressure or air pressure that the method that plug expands is sealed, it is with the principle of hydraulic pressure or pneumatic compression plug locked coil wire rope, change the sealing principle of hydraulic pressure or air pressure expanding into, increased the lifting surface area that plug bears air pressure or hydraulic pressure, reduce plug and be out of shape needed pressure, increase the contact surface of plug and wire rope, improve sealing effectiveness.It changes the sealing principle of plug compressive strain, makes plug directly contact hydraulic oil or air pressure, by the size of air pressure or oil pressure, controls the sealing load of plug and wire rope, control plug deflection; Rather than by hydraulic cylinder to plug compressive strain, increase the deflection of plug, reach seal request to steel wire; Former relatively plug, its length of new plug has increased 2-5cm, and then has strengthened its compression area, and sealing ring has been installed, the airtight space of formation between the outer steel cylinder that is in contact with it in the two ends of plug; When injecting air pressure or oil pressure to this space and reach 0.5～0.7MPa, plug just can be subjected to the inside dilatating and deformable of effect generation of hydraulic pressure or air pressure, wire rope is held tightly seal.
As shown in Figure 1, it is by the lower contact 8 of blowout prevention box body 4, directive wheel 2, guiding wheel carrier and top connection 3, connection well head, and the pipe joint 6 of connection hydraulic power source or pneumatic supply and leak-off pipe wire terminal 9 compositions; In the blowout prevention box body 4 is the sealing-plug cylinder barrel; Be fixed with guiding wheel carrier and top connection 3 in blowout prevention box body 4 outer tip end, be connected with directive wheel 2 in guiding wheel carrier and the top connection 3; Two sealing plugs 7 are installed in blowout prevention box body 4, and sealing headring and cushion rubber 5 sulfurations are at the both ends of sealing plug 7; The bottom of blowout prevention box body 4 connects lower contact 8; With blowout prevention box body 4 corresponding positions leak-off pipe wire terminal 9 is arranged between two sealing plugs 7; Be connected with pipe joint 6 and underground pipelines joint 6 on the tube wall of blowout prevention box body 4 and two sealing plug 7 middle correspondence positions, pipe joint 6 connects the pipeline of hydraulic power sources or source of the gas.Two hydraulic pressure that forms between two sealings plug 7 and blowout prevention box body 4 inner chambers or pressure work chamber make air pressure or hydraulic pressure and sealing plug 7 direct pressure-bearings.The two ends sulfuration of each sealing plug 7 has the steel loops of two band sealing rings, as the form of structure of the sealing headring of plug.Sulfuration process is that a kind of already known processes is in the general public use of river celebrating drilling project Co., Ltd head celebrating down-hole technical operation company.
Hydraulic line joint 6 links to each other with foot-operated hydraulic pump by snap joint in the present embodiment, pumping wire rope 1 penetrates from the top of blowout prevention box body 4, the bottom passes, and directive wheel 2 is fixed on and plays the control wire rope in guiding wheel carrier and the top connection 3 and be flapped toward, and aligns the effect at blowout prevention box center; Wire rope 1 passes through from the middle duct of sealing plug 7, and the lower contact 8 that connects well head from blowout prevention box body 4 passes; Wire rope 1 end can connect the instrument that pumping is used.Wire rope 1 upper end has the wire rope rope socket to be connected with weighted lever, and swab and weighted lever flexibly connect.
During use swab and weighted lever being connected on the wire rope 1 is lowered in the well then, blowout prevention this moment box body 4 is lowered into well head, blowout prevention box bottom is connected with well head, the pipe joint 6 that connects hydraulic power source or source of the gas, be connected on the foot pump by snap joint, swab be lowered into carry out pumping in the liquid level.On carry swab when liquid soon goes out well head, foot pump begins to suppress, maximum pressure can not surpass 1MPa, seal plug 7 pressurizeds and produce distortion this moment, holds wire rope 1 tightly and play sealing function; When swab stops to suppress during near well head, when swab is gone into well once more, the pressure in the pressuring pump is discharged, wire rope is not contacted with seal box, reduce unnecessary wearing and tearing, the application life of raising blowout prevention box.Can finish swabbing operation so repeatedly.But can not guarantee sealing when continuing to suppress, or well head thorn takes off the blowout prevention box when leaking, change sealing plug 7 wherein; Waste liquid is derived in leak-off pipe wire terminal 9, is discharged in the blowdown hole.
Claims (3)
1, blowout control box sealed by expanding rubber plug is characterized in that: blowout prevention box body (4) inner chamber is the sealing-plug cylinder barrel; Be fixed with guiding wheel carrier and top connection (3) in blowout prevention box body (4) outer tip end, be connected with directive wheel (2) in guiding wheel carrier and the top connection (3); Two sealing plugs (7) are installed in blowout prevention box body (4), and sealing headring and cushion rubber (5) sulfuration are at the both ends of sealing plug (7); The bottom of blowout prevention box body (4) connects lower contact (8), with the corresponding position of blowout prevention box body (4) leak-off pipe wire terminal (9) is arranged between two sealing plugs (7); Be connected with pipe joint (6) and underground pipelines joint (6) on the tube wall of correspondence position in the middle of blowout prevention box body (4) and two the sealing plugs (7), pipe joint (6) connects the pipeline of hydraulic power source or source of the gas.
2, blowout control box sealed by expanding rubber plug according to claim 1 is characterized in that: the two ends sulfuration of described each sealing plug (7) has the steel loop of two band sealing rings, as the sealing headring of plug.
3, blowout control box sealed by expanding rubber plug according to claim 1 is characterized in that: be formed with two hydraulic pressure or pressure work chamber between described two sealing plugs (7) and blowout prevention box body (4) inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200324518U CN201401148Y (en) | 2009-04-02 | 2009-04-02 | Expanding type capsule sealing anti-spray box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200324518U CN201401148Y (en) | 2009-04-02 | 2009-04-02 | Expanding type capsule sealing anti-spray box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201401148Y true CN201401148Y (en) | 2010-02-10 |
Family
ID=41660948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200324518U Expired - Fee Related CN201401148Y (en) | 2009-04-02 | 2009-04-02 | Expanding type capsule sealing anti-spray box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201401148Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110331956A (en) * | 2019-08-20 | 2019-10-15 | 中石化石油工程技术服务有限公司 | A kind of pumping blowout-preventing device |
| CN115324521A (en) * | 2021-12-15 | 2022-11-11 | 江苏瑞亿石油机械有限公司 | Deep sea underwater light blowout preventer assembly and control system thereof |
-
2009
- 2009-04-02 CN CN2009200324518U patent/CN201401148Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110331956A (en) * | 2019-08-20 | 2019-10-15 | 中石化石油工程技术服务有限公司 | A kind of pumping blowout-preventing device |
| CN110331956B (en) * | 2019-08-20 | 2024-01-30 | 中石化石油工程技术服务有限公司 | Swabbing blowout preventer |
| CN115324521A (en) * | 2021-12-15 | 2022-11-11 | 江苏瑞亿石油机械有限公司 | Deep sea underwater light blowout preventer assembly and control system thereof |
| CN115324521B (en) * | 2021-12-15 | 2023-06-02 | 江苏瑞亿石油机械有限公司 | Deep sea underwater light blowout preventer assembly and control system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: XIANYANG CHANGQING XINYUAN ENGINEERING TECHNOLOGYCO., Ltd. Assignor: CHINA NATIONAL PETROLEUM CORPORATION CHUANQING DRILLING ENGINEERING COMPANY LIMITED CHANGQING DOWNHOLE TECHNOLOGY Co. Contract record no.: 2011610000004 Denomination of utility model: Design method of blowout control box sealed by expanding rubber plug Granted publication date: 20100210 License type: Exclusive License Record date: 20110304 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100210 Termination date: 20160402 |