CN102162344A - Blowout prevention box for pumping steel wire rope - Google Patents
Blowout prevention box for pumping steel wire rope Download PDFInfo
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- CN102162344A CN102162344A CN2011101369626A CN201110136962A CN102162344A CN 102162344 A CN102162344 A CN 102162344A CN 2011101369626 A CN2011101369626 A CN 2011101369626A CN 201110136962 A CN201110136962 A CN 201110136962A CN 102162344 A CN102162344 A CN 102162344A
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Abstract
The invention relates to a blowout prevention box for a pumping steel wire rope, which comprises a safety pull-out mechanism and a seal mechanism arranged on the safety pull-out mechanism, wherein the seal mechanism consists of a primary sealing element and a secondary sealing element which are arranged from bottom to top; a backflow chamber is formed between the primary sealing element and the secondary sealing element, and a diversion pipe is arranged on one side of the backflow chamber; the primary sealing element and the secondary sealing element are formed by an air cylinder and a sealing strip which is arranged in the air cylinder and extends along the axial direction of the air cylinder; a through hole through which the steel wire rope passes is formed in the center of the air cylinder, and the sealing strip is arranged on the periphery of the through hole; and the steel wire rope passes through the backflow chamber. The blowout prevention box has the advantages of solving the problem of the sealing of the steel wire rope effectively by the primary sealing element, the secondary sealing element and upper and lower centralizers, along with energy conservation and environment friendliness.
Description
Technical field
The invention belongs to oil and gas industry, relate in the formation testing gas process in the various wire rope operation techniques, require use wire rope Sealing Technology under high pressure, is a kind of Sealing Technology to used wire rope.
Background technology
In the formation testing gas operation technique, to carry out various modification measures to oil-gas Layer usually, as, pressure break, acidifying, kill job, the operation after it must be discharged the construction liquid in stratum and the well, makes oil-gas Layer recover production capacity.In discharging well, reach in the construction technology of liquid in the stratum, the normal method that adopts swab the well in, and it is this simple, practical efficient fluid-discharge method, the wire rope used because of pumping can not seal, can not be widely used at each major oil and gas field, and be able to a large amount of application in " three is low " oil-gas reservoir of long celebrating.But this technology still exists the well head can not pressure-bearing, can not reach the requirement of process seal, so that cause environment pollution, can not reach safety, the requirement of cleaner production.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can reach process seal, can not cause environment pollution, reached the pumping wireline preventer that safely cleaning is produced.
The object of the present invention is achieved like this, and a kind of pumping wireline preventer comprises safe pull-off mechanism and sealing mechanism disposed thereon, and its special character is that sealing mechanism is made up of primary seal spare that sets gradually and secondary seal from bottom to top; Be provided with return passage between primary seal spare and the secondary seal, this return passage one side is provided with mozzle; Primary seal spare and secondary seal all are by cylinder, are arranged in the cylinder and along the axially extended weather strip of cylinder and constitute; The perforation for steel wire penetrating is left at the center of cylinder, and weather strip be arranged on this perforation around; The steel wire penetrating return passage.
Also be provided with in the above-mentioned cylinder along the axially extended air bag of cylinder, and this air bag is between the cylinder wall of weather strip and cylinder, this cylinder wall is provided with the wireway that communicates with air bag.
The top of above-mentioned secondary seal is provided with centralizer, be provided with down centralizer between described primary seal spare and the described safe pull-off mechanism, described centralizer and the following centralizer gone up all is by left directive wheel bearing, right directive wheel bearing, is separately positioned on the left directive wheel of left directive wheel bearing, the right directive wheel on the right directive wheel bearing and the bearing support that contains bearing and constitutes, wherein, left directive wheel bearing and right directive wheel bearing are symmetricly set on this bearing support top about the axis of this bearing support; The upper cylinder that described bottom of going up the bearing support of centralizer is arranged on the cylinder of described secondary seal covers; Described down centralizer by be arranged on its outer shell respectively with the top of the therapeutic method to keep the adverse qi flowing downward cylinder cap of the cylinder of described primary seal spare and described safe pull-off mechanism by screwed connection; Described return passage is arranged between the upper cylinder lid of cylinder of the therapeutic method to keep the adverse qi flowing downward cylinder cap of cylinder of described secondary seal and described primary seal spare; The center of described bearing support is provided with along its axis for described steel wire up and down via hole, this via hole and described perforation over against, and bore is identical.
Above-mentioned left directive wheel is identical with right directive wheel size, and is fixed on described left directive wheel bearing and the right directive wheel bearing by bearing pin respectively.
The wireway of above-mentioned secondary seal is communicated with by tee piece with the wireway of described primary seal spare, the middle mouth of pipe of this tee piece connects the wireway of described primary seal spare, its upper end mouth of pipe connects the wireway of described secondary seal, and its lower end mouth of pipe is the interface that connects pumping equipment; Described weather strip is shape in the shape of a spiral.
The wireway of above-mentioned secondary seal is communicated with by pneumatic line with the upper end mouth of pipe of described tee piece.
The upper cylinder lid of the cylinder of above-mentioned secondary seal and primary seal spare and lower cylinder cover and are provided with two locking balls that are used for fixing the wire rope position, the both sides of the described wire rope that is placed in.
Be provided with air bag cushion between the upper cylinder lid of the cylinder of above-mentioned primary seal spare and secondary seal and therapeutic method to keep the adverse qi flowing downward cylinder cap and the described air bag.
Above-mentioned safe extractor is made of top connection and deck; The shape at the vertical interface of described top connection is a cross, is provided with weighted lever in its center pipe vertically; Described center pipe is disposed with lock ball sliding sleeve and locking ball sliding sleeve outward from top to bottom, is provided with the locking steel ball between described lock ball sliding sleeve and the described locking ball sliding sleeve, is provided with locking ball near the lower end of described locking ball sliding sleeve; The lower end of described center pipe is provided with conical target seeker, and this taper shape target seeker is positioned at the lower end of described locking ball sliding sleeve; The transverse part of described top connection is provided with the lock back-moving spring, and this lock back-moving spring is close to described lock ball sliding sleeve and vertically is provided with; Be provided with sliding sleeve between the outer wall of described weighted lever and the described locking ball sliding sleeve, and be positioned at the top of described conical target seeker; The upper end of described sliding sleeve is provided with the sliding sleeve spring, and this sliding sleeve spring is arranged between described center pipe and the described lock ball sliding sleeve; Described sliding sleeve outer wall closely contacts with the inwall of described locking ball sliding sleeve and compresses described locking ball;
On the inwall of the center pipe of described deck, be provided with groove corresponding to described locking steel ball and locking ball place; The cross sectional shape at the top of the center pipe of described deck is the shape of falling from power, two waist with touch with described lock back-moving spring.
The transverse part of above-mentioned top connection is provided with air guide pore and the water conservancy diversion pore that passes for described wireway and mozzle, is provided with the gas circuit seal washer in the described air guide pore, is provided with liquid road seal washer in the described water conservancy diversion pore.
Advantage of the present invention: the present invention has effectively solved the wire rope sealing problem by I and II seal and upper and lower centralizer, has the advantage of energy-conserving and environment-protective.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples:
Fig. 1 is the structural representation of pumping wireline preventer;
Fig. 2 is primary seal spare or two and the structural representation of seal;
Fig. 3 is a structural representation of going up centralizer or following centralizer;
Fig. 4 is the schematic diagram that the following centralizer of shell is set;
Fig. 5 is the structural representation of safe pull-off mechanism;
Fig. 6 is the structural representation of the top connection of safe pull-off mechanism;
Fig. 7 is the structural representation of the deck of safe pull-off mechanism.
Description of reference numerals: 1-safety pull-off mechanism; 2-primary seal spare; The 3-secondary seal; The 4-return passage; The 5-mozzle; The last centralizer of 6-; Centralizer under the 7-; The 8-cylinder; The 9-weather strip; The 10-wire rope; The 11-perforation; The 12-air bag; The 13-wireway; 14-left side directive wheel bearing; The right directive wheel bearing of 15-; 16-left side directive wheel; The right directive wheel of 17-; The 18-bearing; 19,20-bearing support; 21-upper cylinder lid; The 22-shell; 23-therapeutic method to keep the adverse qi flowing downward cylinder cap; The 24-via hole; 25,26-wireway; The 27-tee piece; The 270-pneumatic line; 28,29, locking ball; The 30-air bag cushion; The 31-top connection; The center pipe of 32-top connection; The 33-weighted lever; The 34-sliding sleeve; 35-lock ball sliding sleeve; 36-locking ball sliding sleeve; 37-locks steel ball; The 38-locking ball; The conical target seeker of 39-; 40-locks back-moving spring; The 41-deck; The 42-groove; The center pipe of 43-deck; 44,45-two waists of shape of falling from power; 46-air guide pore; 47-water conservancy diversion pore; 48-gas circuit seal washer; 49-liquid road seal washer; The 50-return line; 51-sliding sleeve spring.
The specific embodiment
The pumping wireline preventer that present embodiment provided mainly by on set upright unit, two-stage pneumatic (surging) sealing unit, set upright the unit down, safe pull-off unit is formed, on set upright unit, two-stage pneumatic (surging) sealing unit, set upright the unit down, safe pull-off unit is connected by screw thread respectively, concrete structure is seen following explanation.
As shown in Figure 1, a kind of pumping wireline preventer comprises safe pull-off mechanism 1 and sealing mechanism disposed thereon, and special character is that sealing mechanism is made up of primary seal spare that sets gradually 2 and secondary seal 3 from bottom to top; The top of secondary seal 3 is provided with centralizer 6, is provided with down centralizer 7 between primary seal spare 2 and the safe pull-off mechanism 1.Be provided with return passage 4 between primary seal spare 2 and the secondary seal 3, this return passage 4 leads to mozzle 5.
Referring to Fig. 2, primary seal spare 2 and secondary seal 3 all are by cylinder 8, are arranged in the cylinder 8 and along cylinder 8 axially extended weather strips 9 and constitute; The perforation 11 of passing for wire rope 10 is left at the center of cylinder 8, and weather strip 9 be arranged on this perforation 11 around; Wire rope 10 passes return passage 4.Also be provided with in the cylinder 8 along cylinder 8 axially extended air bags 12, and this air bag 12 is between the cylinder wall of weather strip 9 and cylinder 8, this cylinder wall is provided with the wireway 13 that communicates with air bag 12.The upper cylinder lid of the cylinder of secondary seal 3 and primary seal spare 2 and lower cylinder cover and are provided with two locking ball 28,29(280,290 that are used for fixing wire rope 10 positions), the both sides of the described wire rope 10 that is placed in.Be provided with air bag cushion 30 between the upper cylinder lid of the cylinder of primary seal spare 2 and secondary seal 3 and therapeutic method to keep the adverse qi flowing downward cylinder cap and the air bag 12.(the upper and lower cylinder head here also can be referred to as upper and lower airbag cover, i.e. the upper and lower end cap of air bag).
Design has return passage 4 and return line 50 between primary seal spare 2 and secondary seal 3, the liquid that primary seal spare 2 is leaked out, return in the well or the inflow surface flow container by return line 50, return passage 4 links to each other with sleeve pipe or return tank and communicates with atmospheric pressure, be passive state in the return passage 4, guarantee that secondary seal 3 is under the situation of not bearing fluid pressure, the fluid that is stained with on the wire rope 10 is daubed into return passage 4, flow back in the well or return tank in, make secondary confidential paper 3 reach non-leakage effect.
Cylinder 8 all is to be connected by screw thread with its upper and lower cylinder head, has located air bag 12 and air bag cushion 30 like this, the locking ball 28 on the upper and lower cylinder head, 29(280,290) wire rope 10 is realized axial location.Weather strip 9 is shapes in the shape of a spiral, and spring-like is when installing wire rope 10, weather strip 9 is wrapped with, when whole system is worked,, there is the space between weather strip 9 and the wire rope 10 if weather strip 9 weares and teares to some extent, by the air pressure extruding gasbag 12 in the cylinder 8, air bag 12 passes to weather strip 9 with radial effect power, because weather strip 9 shape is in the shape of a spiral held wire rope 10 then once more tightly and realized sealing, compensation is automatically realized in space between weather strip 9 and the wire rope 10, guarantee the sealing of wire rope.
As seen from Figure 3, last centralizer 6 and following centralizer 7 all are to be made of 15 right directive wheel 17 on left directive wheel bearing 14, right directive wheel bearing 15, the left directive wheel 16 that is separately positioned on left directive wheel bearing 14, the right directive wheel bearing and the bearing support 19 that contains bearing 18, wherein, left directive wheel bearing 14 and right directive wheel bearing 15 are symmetricly set on this bearing support 19 tops about the axis of this bearing support 19.Left side directive wheel 16 is identical with right directive wheel 17 sizes, and is fixed on left directive wheel bearing 14 and the right directive wheel bearing 15 by bearing pin respectively.Can be by bearing 18 so that left and right directive wheel 16,17 and bearing 14,15 thereof are realized the rotation of 360 degree.
See Fig. 1, when being that I and II seal 2,3 connects, the upper cylinder that the bottom of the bearing support 20 of last centralizer 6 is arranged on the cylinder of secondary seal 3 covers on 21; Following centralizer 7 by be arranged on its outer shell 22 respectively with the top of the therapeutic method to keep the adverse qi flowing downward cylinder cap 23 of the cylinder of primary seal spare 2 and safe pull-off mechanism 1 by screwed connection; Return passage 4 is arranged between the upper cylinder lid of cylinder of the therapeutic method to keep the adverse qi flowing downward cylinder cap of cylinder of secondary seal 3 and primary seal spare 2; The center of bearing support 19 is provided with along its axis for the up and down via hole 24 of wire rope 10, the perforation 11 in this via hole 24 and the I and II seal 2,3 over against, and bore is identical, is beneficial to wire rope 10 easy on and off activities.
By last centralizer 6, following centralizer 7, the system that centralizes that (being bearing support 19) forms wire rope 10 is sat at the rotation end, eliminates the eccentric wear of 10 pairs of seals of wire rope (I and II seal 2,3), to improve the sealing part works life-span.
The wireway 25 of secondary seal 3 is communicated with by tee piece 27 with the wireway 26 of primary seal spare 2, the middle mouth of pipe of this tee piece 27 connects the wireway 26 of primary seal spare 2, its upper end mouth of pipe connects the wireway 25 of secondary seal 3, and its lower end mouth of pipe is the interface that connects pumping equipment.
The wireway 26 of secondary seal 3 is communicated with by pneumatic line 270 with the upper end mouth of pipe of tee piece 27.
By primary seal spare 2, secondary seal 3, pneumatic line 270 and tee piece 27 have been formed the basic Sealing Technology of wire rope 1, air pressure by 270 confessions of pneumatic line or the hydraulic coupling fluid pressure that well head forms during greater than pumping is realized first order sealing with compression primary seal spare 2; The main effect of pneumostop is exactly to compensate the wear extent of wire rope to seal, reaches sealing effectiveness, improves the effective rate of utilization of seal.Supply gas pressure is generally the supply gas pressure of pumping equipment such as tractor hoist or workover rig; The pressure of also available hydraulic system on it.
See Fig. 5, safe extractor 1 is made of top connection 31 and deck 41; The shape at the vertical interface of top connection 31 is crosss, is provided with weighted lever 33 in its center pipe 32 vertically; Be disposed with lock ball sliding sleeve 35 and locking ball sliding sleeve 36 from top to bottom outside the center pipe 32, be provided with locking steel ball 37 between lock ball sliding sleeve 35 and the locking ball sliding sleeve 36, be provided with locking ball 38 near the lower end of locking ball sliding sleeve 36; The lower end of center pipe 32 is provided with conical target seeker 39, and this taper shape target seeker 39 is positioned at the lower end of locking ball sliding sleeve 36; The transverse part of top connection 31 is provided with lock back-moving spring 40, and should vertically be provided with by lock back-moving spring 40 next-door neighbour's lock ball sliding sleeves 35.Be provided with sliding sleeve 34 between the outer wall of weighted lever 33 and the locking ball sliding sleeve 36, and be positioned at the top of conical target seeker 39, the upper end of sliding sleeve 34 is provided with sliding sleeve spring 51, and this sliding sleeve spring 51 is arranged between center pipe 32 and the lock ball sliding sleeve 35; Sliding sleeve 34 outer walls closely contact with the inwall of locking ball sliding sleeve 36 and compress locking ball 37.
The transverse part of top connection 31 is provided with air guide pore 46 and the water conservancy diversion pore 47 that supplies wireway 13 and mozzle 5 to pass, and is provided with gas circuit seal washer 48 in the air guide pore 46, is provided with liquid road seal washer 49 in the water conservancy diversion pore 47.
As shown in Figure 7, be its center pipe 43 on the tubular inwall of the center pipe 32 that is used for fixing top connection 31 of deck 41, be provided with groove 42 corresponding to locking steel ball 37 and locking ball 38 places; The cross sectional shape at the top of the center pipe 43 of deck 41 is the shapes of falling from power, and two waist 44,45 and lock back-moving spring 40 touch.
Thus, when carrying wire rope 10, when weighted lever 33 was run into sliding sleeve 34, sliding sleeve 34 compression sliding sleeve springs 51 were up last, and locking ball 38 runs into groove 42 and is subjected to the effect of radial load, and locking ball 38 is regained and realized pull-offs.Transfer when wire rope 10, weighted lever 33 is descending, and sliding sleeve 34 gives location steel ball 38 outside thrust under the effect of sliding sleeve spring 51, and when groove 42 places that come downwards to deck, locking ball 38 ejects, and restPoses.
Claims (10)
1. a pumping wireline preventer comprises safe pull-off mechanism and sealing mechanism disposed thereon, and it is characterized in that: described sealing mechanism is made up of primary seal spare that sets gradually from bottom to top and secondary seal; Be provided with return passage between described primary seal spare and the described secondary seal, this return passage one side is provided with mozzle; Described primary seal spare and secondary seal all are by cylinder, are arranged in the cylinder and along the axially extended weather strip of cylinder and constitute; The perforation for steel wire penetrating is left at the center of described cylinder, and described weather strip be arranged on this perforation around; The described return passage of described steel wire penetrating.
2. pumping wireline preventer as claimed in claim 1, it is characterized in that: also be provided with in the described cylinder along the axially extended air bag of cylinder, and this air bag is between the cylinder wall of described weather strip and cylinder, and this cylinder wall is provided with the wireway that communicates with described air bag.
3. pumping wireline preventer as claimed in claim 2, it is characterized in that: the top of described secondary seal is provided with centralizer, be provided with down centralizer between described primary seal spare and the described safe pull-off mechanism, described centralizer and the following centralizer gone up all is by left directive wheel bearing, right directive wheel bearing, is separately positioned on the left directive wheel of left directive wheel bearing, the right directive wheel on the right directive wheel bearing and the bearing support that contains bearing and constitutes, wherein, left directive wheel bearing and right directive wheel bearing are symmetricly set on this bearing support top about the axis of this bearing support; The upper cylinder that described bottom of going up the bearing support of centralizer is arranged on the cylinder of described secondary seal covers; Described down centralizer by be arranged on its outer shell respectively with the top of the therapeutic method to keep the adverse qi flowing downward cylinder cap of the cylinder of described primary seal spare and described safe pull-off mechanism by screwed connection; Described return passage is arranged between the upper cylinder lid of cylinder of the therapeutic method to keep the adverse qi flowing downward cylinder cap of cylinder of described secondary seal and described primary seal spare; The center of described bearing support is provided with along its axis for described steel wire up and down via hole, this via hole and described perforation over against, and bore is identical.
4. pumping wireline preventer as claimed in claim 3 is characterized in that: described left directive wheel is identical with right directive wheel size, and is fixed on described left directive wheel bearing and the right directive wheel bearing by bearing pin respectively.
5. as claim 2 or 3 or 4 described pumping wireline preventers, it is characterized in that: the wireway of described secondary seal is communicated with by tee piece with the wireway of described primary seal spare, the middle mouth of pipe of this tee piece connects the wireway of described primary seal spare, its upper end mouth of pipe connects the wireway of described secondary seal, and its lower end mouth of pipe is the interface that connects pumping equipment; Described weather strip is shape in the shape of a spiral.
6. pumping wireline preventer as claimed in claim 5 is characterized in that: the wireway of described secondary seal is communicated with by pneumatic line with the upper end mouth of pipe of described tee piece.
7. pumping wireline preventer as claimed in claim 6, it is characterized in that: the upper cylinder lid of the cylinder of described secondary seal and primary seal spare and lower cylinder cover and are provided with two locking balls that are used for fixing the wire rope position, the both sides of the described wire rope that is placed in.
8. pumping wireline preventer as claimed in claim 7 is characterized in that: be provided with air bag cushion between the upper cylinder lid of the cylinder of described primary seal spare and secondary seal and therapeutic method to keep the adverse qi flowing downward cylinder cap and the described air bag.
9. pumping wireline preventer as claimed in claim 8 is characterized in that: described safe extractor is made of top connection and deck; The shape at the vertical interface of described top connection is a cross, is provided with weighted lever in its center pipe vertically; Described center pipe is disposed with lock ball sliding sleeve and locking ball sliding sleeve outward from top to bottom, is provided with the locking steel ball between described lock ball sliding sleeve and the described locking ball sliding sleeve, is provided with locking ball near the lower end of described locking ball sliding sleeve; The lower end of described center pipe is provided with conical target seeker, and this taper shape target seeker is positioned at the lower end of described locking ball sliding sleeve; The transverse part of described top connection is provided with the lock back-moving spring, and this lock back-moving spring is close to described lock ball sliding sleeve and vertically is provided with; Be provided with sliding sleeve between the outer wall of described weighted lever and the described locking ball sliding sleeve, and be positioned at the top of described conical target seeker; The upper end of described sliding sleeve is provided with the sliding sleeve spring, and this sliding sleeve spring is arranged between described center pipe and the described lock ball sliding sleeve; Described sliding sleeve outer wall closely contacts with the inwall of described locking ball sliding sleeve and compresses described locking ball;
On the inwall of the center pipe of described deck, be provided with groove corresponding to described locking steel ball and locking ball place; The cross sectional shape at the top of the center pipe of described deck is the shape of falling from power, two waist with touch with described lock back-moving spring.
10. pumping wireline preventer as claimed in claim 9, it is characterized in that: the transverse part of described top connection is provided with air guide pore and the water conservancy diversion pore that supplies described wireway and mozzle to pass, be provided with the gas circuit seal washer in the described air guide pore, be provided with liquid road seal washer in the described water conservancy diversion pore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101369626A CN102162344B (en) | 2011-05-25 | 2011-05-25 | Blowout prevention box for pumping steel wire rope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101369626A CN102162344B (en) | 2011-05-25 | 2011-05-25 | Blowout prevention box for pumping steel wire rope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102162344A true CN102162344A (en) | 2011-08-24 |
| CN102162344B CN102162344B (en) | 2013-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101369626A Expired - Fee Related CN102162344B (en) | 2011-05-25 | 2011-05-25 | Blowout prevention box for pumping steel wire rope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102162344B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761526A (en) * | 2016-12-30 | 2017-05-31 | 天津中车机辆装备有限公司 | Steel wire rope pumping return channel |
| CN115075766A (en) * | 2022-08-16 | 2022-09-20 | 泰州远鹏吊索具有限公司 | Swabbing steel wire rope blowout preventer for oil field |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2418251Y (en) * | 1999-02-05 | 2001-02-07 | 胜利石油管理局孤东采油厂 | Blowout-proof device for test of high-pressure wellhead |
| US6439302B1 (en) * | 2000-07-25 | 2002-08-27 | Vanoil Equipment Inc. | Stripper packer |
| CN202047782U (en) * | 2011-05-25 | 2011-11-23 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Swabbing steel wire rope spray-prevention device |
-
2011
- 2011-05-25 CN CN2011101369626A patent/CN102162344B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2418251Y (en) * | 1999-02-05 | 2001-02-07 | 胜利石油管理局孤东采油厂 | Blowout-proof device for test of high-pressure wellhead |
| US6439302B1 (en) * | 2000-07-25 | 2002-08-27 | Vanoil Equipment Inc. | Stripper packer |
| CN202047782U (en) * | 2011-05-25 | 2011-11-23 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Swabbing steel wire rope spray-prevention device |
Non-Patent Citations (2)
| Title |
|---|
| 任国富等: "气井安全抽汲工艺技术研究", 《石油机械》 * |
| 张利明等: "气控液压抽汲防喷盒的研制与应用", 《油气井测试》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761526A (en) * | 2016-12-30 | 2017-05-31 | 天津中车机辆装备有限公司 | Steel wire rope pumping return channel |
| CN115075766A (en) * | 2022-08-16 | 2022-09-20 | 泰州远鹏吊索具有限公司 | Swabbing steel wire rope blowout preventer for oil field |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102162344B (en) | 2013-11-27 |
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Granted publication date: 20131127 Termination date: 20210525 |