CN100363677C - Self off-connecting auto desealing pipeline packer - Google Patents
Self off-connecting auto desealing pipeline packer Download PDFInfo
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- CN100363677C CN100363677C CNB2005101320760A CN200510132076A CN100363677C CN 100363677 C CN100363677 C CN 100363677C CN B2005101320760 A CNB2005101320760 A CN B2005101320760A CN 200510132076 A CN200510132076 A CN 200510132076A CN 100363677 C CN100363677 C CN 100363677C
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- shoulder hole
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- clamping plate
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Abstract
The present invention discloses a self off-connecting auto unsealing pipeline plugging device. The present invention comprises a central tube of which the tube wall is provided with through holes, a gasbag which is sheathed outside the tube wall of the central tube, a first guard board which is fixedly connected with the left end of the central tube, a first clamping board which is fixedly connected with the left end of the first guard board, a first piston which is arranged in shoulder holes of the first guard board and the first clamping board through a spring, a second guard board, a second clamping board, a second piston, a first joint, a second joint and a taper key, wherein the center of the first guard board is provided with one shoulder hole and the center of the first clamping board is provided with one shoulder hole; according to the same manner, the second guard board, the second clamping board and the second piston are arranged in the right end of the central tube; the first joint is fixed at the right end of the second clamping board and the second joint is sheathed at the right end of the first joint; the taper key is arranged in the inclined surface hole of the second joint. When in use, the present invention can realize than after pipelines are plugged, the present invention can be automatically disconnected with a feed mechanism; after the pipeline is repaired, the present invention can be automatically unseal unsealed and recovered from the remote end of the pipeline under production pressure.
Description
Technical field
The present invention relates to pipeline plug, particularly relate to a kind of can autospasy connection, from the pipeline plug of deblocking.
Background technique
Oil, feed channel are the defeated outward main production facilities of land, extra large oil-gas field development, production and oil gas.Because a variety of causes, as the pipeline running state exceed that scope of design, boats and ships work the operation of casting anchor, the collision that drags a net in fishing, seafloor scour, junk impact, dielectric corrosion and constructing operation are improper etc., oil, feed channel damage accident are increased year by year, had a strong impact on production of hydrocarbons.
At present, existing technology of pipeline being carried out shutoff by blocking machine, can only implement the shutoff operation to pipeline in pipeline tapping place, still can not realize separating of plugging device and feed mechanism, thereby can not satisfy in the pipe plugging maintenance operation plugging device and feed mechanism and break away from and connect, with the pipeline maintenance job requirements of pipeline being implemented shutoff away from pipeline tapping place one segment distance, simultaneously owing to blocking machine when pipeline is carried out the shutoff maintenance operation links with plugging device all the time, can not a tractor serves several purposes, the complexity and the cost of pipe plugging maintenance operation are increased, so this problem is demanded urgently connecing certainly.
Summary of the invention
The purpose of this invention is to provide a kind of can autospasy connection, from the pipeline plug of deblocking, this explain by oneself the tube sealing pipeline packer by the feed mechanism of special use send into and blocking pipe after, can automatically break away from and connect with feed mechanism, and can be under production pressure after the pipeline rehabilitation automatic deblocking and reclaim from the pipeline far-end.
For achieving the above object, the present invention takes technological scheme: a kind of self off-connecting auto desealing pipeline packer, and it includes: a center tube, its tube wall is provided with at least one through hole; One air bag, it is set in outside the tube wall of described center tube, is provided with pore with the corresponding position of center tube through hole on this air bag; One first backplate, it is fixed in the left end of described center tube, and the center of first backplate is provided with a shoulder hole; One first clamping plate, it is fixed in the left end of described first backplate, and the center of first clamping plate is provided with a shoulder hole; One first piston, it is contained in the shoulder hole of the shoulder hole of first backplate and first clamping plate by spring; One second backplate, it is fixed in the right-hand member of described center tube, and the center of second backplate is provided with a shoulder hole; One second clamping plate, it is fixed in the right-hand member of described second backplate, and the center of second clamping plate is provided with a shoulder hole; One second piston, it is contained in the shoulder hole of the shoulder hole of second backplate and second clamping plate by spring; One first joint, it is fixed in the right-hand member of described second clamping plate, and over against the shoulder hole of second clamping plate, first joint is cylindric, and inside is hollow, and the sidewall of first joint is provided with two perforation; One second joint, it is set in the right-hand member of described first joint, and two of corresponding first joint perforation are provided with a beveled aperture and a screw on the sidewall of second joint; One wedge key, it is contained in the beveled aperture of described second joint, and is fastened in the perforation of first joint; One connecting rod, one end are articulated on the outer wall of second joint, and the other end is articulated on the wedge key; One spring, it draws between the outer wall that is located at the described connecting rod and second joint.
In practical operation, coaxial being oppositely arranged of big footpath nose end of the shoulder hole of the shoulder hole of described first backplate and first clamping plate; One end of described first piston is provided with a big retaining plug, it is arranged in the hole, big footpath of shoulder hole of first clamping plate, and seal the path hole of the shoulder hole of first clamping plate, the other end of first piston is provided with a small piston, it is arranged in the path hole of shoulder hole of first backplate, and seals the path hole of the shoulder hole of first backplate; One spring, it is pressed between the hole, big footpath of shoulder hole of the big retaining plug of this first piston and first backplate.In addition, coaxial being oppositely arranged of big footpath nose end of the shoulder hole of the shoulder hole of described second backplate and second clamping plate; One end of described second piston is provided with a big retaining plug, it is arranged in the hole, big footpath of shoulder hole of second clamping plate, and seal the path hole of the shoulder hole of second clamping plate, the other end of second piston is provided with a small piston, it is arranged in the path hole of shoulder hole of second backplate, and seals the path hole of the shoulder hole of second backplate; One spring, it is pressed between the hole, big footpath of shoulder hole of the big retaining plug of this second piston and second backplate.
Above-mentioned explains by oneself in the tube sealing pipeline packer, and the diameter of the big retaining plug of described first piston is greater than the diameter of its small piston, and the diameter of the big retaining plug of described second piston is greater than the diameter of its small piston.
Above-mentioned explains by oneself in the tube sealing pipeline packer, is provided with the inclined-plane in the beveled aperture of described second joint, and the angle of inclination on this inclined-plane is identical with the angle of inclination on the inclined-plane of described wedge key.
Above-mentioned explains by oneself in the tube sealing pipeline packer, and described first backplate and first clamping plate wear the tube wall left end that is fixed in described center tube by screw; Described second backplate and second clamping plate wear the tube wall right-hand member that is fixed in described center tube by screw.
The present invention is owing to take above design, and it has the following advantages:
1, uses self off-connecting auto desealing pipeline packer provided by the invention, can be implemented in by the feed mechanism of special use send into and blocking pipe after, automatically break away from feed mechanism and connect, and can be under production pressure after the pipeline rehabilitation automatic deblocking and reclaim from the pipeline far-end.
2, use self off-connecting auto desealing pipeline packer provided by the invention, can satisfy in the pipe plugging maintenance operation plugging device and feed mechanism breaks away from and connects and away from the needs of pipeline tapping place one segment distance to pipeline enforcement blocking technology, simultaneously owing to when pipeline is carried out the shutoff maintenance operation, can realize separating automatically of plugging device and its feed mechanism, feed mechanism can be realized a tractor serves several purposes, thereby has reduced the complexity and the cost of pipeline maintenance operation.
3, the pipe plugging maintenance technique carried out of the present invention and instrument research, reduced the oil-gas gathering and transportation cost, efficient and economic benefit that improves China's oilfield prospecting developing and the competitive ability that promotes China participation world oil natural gas exploration and development market have all been had important strategic meaning and realistic meaning.
Description of drawings
Structure cross-sectional schematic when Fig. 1 does not connect second joint for self off-connecting auto desealing pipeline packer of the present invention;
Fig. 2 is the structure cross-sectional schematic of second joint in the self off-connecting auto desealing pipeline packer of the present invention;
Structure cross-sectional schematic when Fig. 3 connects second joint for self off-connecting auto desealing pipeline packer of the present invention;
Second piston motion schematic representation when Fig. 4 is self off-connecting auto desealing pipeline packer shutoff pressurising of the present invention;
Second piston and wedge key motion schematic representation when Fig. 5 is self off-connecting auto desealing pipeline packer pressurising of the present invention;
Fig. 6 is that first, second joint of self off-connecting auto desealing pipeline packer of the present invention separates schematic representation;
First piston motion schematic representation when Fig. 7 is self off-connecting auto desealing pipeline packer deblocking release of the present invention;
Fig. 8 separates the structure cross-sectional schematic of being honored as a queen for self off-connecting auto desealing pipeline packer of the present invention.
Embodiment
At first cooperate Fig. 1, Fig. 2, shown in Figure 3, be a kind of self off-connecting auto desealing pipeline packer provided by the present invention, it includes:
One center tube 1, its tube wall are provided with at least one through hole 11, and the quantity of through hole 11 is specially two in the present embodiment;
One air bag 2, it is set in outside the tube wall of center tube 1, is provided with pore 21 with center tube through hole 11 corresponding positions on this air bag 2;
One first backplate 12, it is fixed in the left end of center tube 1, and the center of first backplate 12 is provided with a shoulder hole 13;
One first clamping plate 14, it is fixed in the left end of first backplate 12, and the center of first clamping plate 14 is provided with a shoulder hole 15;
One first piston 3, it is contained in the shoulder hole 15 of the shoulder hole 13 of first backplate and first clamping plate by spring 31;
One second backplate 16, it is fixed in the right-hand member of center tube 1, and the center of second backplate 16 is provided with a shoulder hole 17;
One second clamping plate 18, it is fixed in the right-hand member of second backplate 16, and the center of second clamping plate 18 is provided with a shoulder hole 19;
One second piston 4, it is contained in the shoulder hole of the shoulder hole 17 of second backplate and second clamping plate 19 by spring 41;
One first joint 5, it is fixed in the right-hand member of second clamping plate 18, and is cylindric over against shoulder hole 19, the first joints 5 of second clamping plate, and inside is hollow, and the sidewall of first joint 5 is provided with two perforation 51,52;
One second joint 6, it is set in the right-hand member of first joint 5, and two of corresponding first joint perforation 51,52 are provided with a beveled aperture 61 and a screw 62 on the sidewall of second joint 6;
One wedge key 7, it is contained in the beveled aperture 61 of second joint 6, and is fastened in the perforation 51 of first joint 5; One connecting rod 71, one end are articulated on the outer wall of second joint 6, and the other end is articulated on the wedge key 7; One spring 72, it draws between the outer wall that is located at the connecting rod 71 and second joint 6.
In the present embodiment, coaxial being oppositely arranged of big footpath nose end of the shoulder hole 13 of first backplate 12 and the shoulder hole 15 of first clamping plate 14; One end of first piston 3 is provided with a big retaining plug 32, it is arranged in the hole, big footpath 151 of shoulder hole 15 of first clamping plate, and seal the path hole 152 of the shoulder hole 15 of first clamping plate, the other end of first piston 3 is provided with a small piston 33, it is arranged in the path hole 132 of shoulder hole 13 of first backplate, and seals the path hole 132 of the shoulder hole of first backplate; This spring 31, it is pressed between the hole, big footpath 131 of shoulder hole 13 of the big retaining plug 32 of first piston and first backplate.
In addition, the big footpath nose end of the shoulder hole 19 of the shoulder hole 17 of second backplate and second clamping plate also is coaxial being oppositely arranged; One end of second piston 4 is provided with a big retaining plug 42, it is arranged in the hole, big footpath 191 of shoulder hole 19 of second clamping plate, and seal the path hole 192 of the shoulder hole of second clamping plate, the other end of second piston 4 is provided with a small piston 43, it is arranged in the path hole 172 of shoulder hole 17 of second backplate, and seals the path hole 172 of the shoulder hole 17 of second backplate; This spring 41, it is pressed between the hole, big footpath 171 of shoulder hole 17 of the big retaining plug 42 of second piston and second backplate.
In addition, it is also to be noted that especially that the diameter of the big retaining plug 32 of first piston is greater than the diameter of its small piston 33, the diameter of the big retaining plug 42 of second piston is greater than the diameter of its small piston 43.
In the foregoing description, in order to guarantee the sealing of wedge key 7 61 li of beveled aperture, the special inclined-plane 611 that in the beveled aperture 61 of second joint, is provided with, the angle of inclination on inclined-plane 611 is identical with the angle of inclination on the inclined-plane of wedge key 7, can make wedge key 7 and beveled aperture 61 fluid-tight engagement like this, guarantee sealing.
In the foregoing description, specifically, first backplate 12 and first clamping plate 14 are to wear the tube wall left end that is fixed in center tube 1 by screw 8, and second backplate 16 and second clamping plate 18 also are to wear the tube wall right-hand member that is fixed in center tube 1 by screw 8, the quantity of screw 8 can be set according to concrete quantity, such as 2,4,8 or the like.
The present invention when in use, as shown in Figure 3, treat of the present invention explain the tube sealing pipeline packer by oneself and send to pipe plugging purpose zone by the feed mechanism of special use after, be in the initial position of pipe plugging.At this moment, the tube sealing pipeline packer of explaining by oneself of the present invention is fixedlyed connected with the feed mechanism of plugging device is coaxial by second joint 6, and by with second joint 6 on screw 62 the gas pressure source joint and the pipeline thereof that match communicate with gas pressure source.When pipe plugging begins, enter in the center hole of first joint 5 by pipeline, the gas pressure source joint that matches with screw 62 on second joint 6, and then promote the spring force that second piston 4 overcomes spring 41 and move to left, as shown in Figure 4 from the pressed gas of gas pressure source; Pressed gas enters center tube 1 by the gap of second piston 4 and second backplate 16, and enters in air bag 2 internal cavities by the pore 21 of through hole on the center tube 1 11 and air bag 2, thereby impels air bag 2 radial expansion blocking pipes; Afterwards, as illustrated in Figures 5 and 6, continue to strengthen gas pressure, second piston 4 continues to move to left until being close to second backplate, 16 right walls, thereby blocks the gas-entered passageway of center tube 1, and air bag 2 also no longer expands, wedge key 7 then moves on the spring force that overcomes spring 72 under the gas pressure effect, until the perforation of withdrawing from first joint 5 51, impel first joint 5 to break away from and be connected, thereby second joint 6 just can withdraw from pipeline with feed mechanism with second joint 6; Simultaneously, along with separating of first joint 5 and second joint 6, the pressure that acts on second piston 4 disappears, and second piston 4 is return under the spring force effect of spring 41, thereby realizes the maintenance (as shown in Figure 6) of plugging device internal pressure.
During deblocking, shown in Fig. 7 and 8, first piston 3 is under pipeline comes action of hydraulic force, and the spring force effect that overcomes spring 31 moves to right, and plugging device inner high voltage gas passes through the clearance leakage of the first piston 3 and first backplate 12 in pipeline, gas pressure and pipeline come fluid pressure balance in plugging device, promoted first piston 3 returns, block the leakage way of gas, and air bag 2 reduced swell increment owing to pressed gas leaks this moment, no longer to pipe plugging, thereby realize deblocking to pipeline.So far whole pipe shutoff, deblocking process finish.
Claims (10)
1. self off-connecting auto desealing pipeline packer is characterized in that it includes:
One center tube, its tube wall is provided with at least one through hole;
One air bag, it is set in outside the tube wall of described center tube, is provided with pore with the corresponding position of center tube through hole on this air bag;
One first backplate, it is fixed in the left end of described center tube, and the center of first backplate is provided with a shoulder hole;
One first clamping plate, it is fixed in the left end of described first backplate, and the center of first clamping plate is provided with a shoulder hole;
One first piston, it is contained in the shoulder hole of the shoulder hole of first backplate and first clamping plate by spring;
One second backplate, it is fixed in the right-hand member of described center tube, and the center of second backplate is provided with a shoulder hole;
One second clamping plate, it is fixed in the right-hand member of described second backplate, and the center of second clamping plate is provided with a shoulder hole;
One second piston, it is contained in the shoulder hole of the shoulder hole of second backplate and second clamping plate by spring;
One first joint, it is fixed in the right-hand member of described second clamping plate, and over against the shoulder hole of second clamping plate, first joint is cylindric, and inside is hollow, and the sidewall of first joint is provided with two perforation;
One second joint, it is set in the right-hand member of described first joint, and two of corresponding first joint perforation are provided with a beveled aperture and a screw on the sidewall of second joint;
One wedge key, it is contained in the beveled aperture of described second joint, and is fastened in the perforation of first joint; One connecting rod, one end are articulated on the outer wall of second joint, and the other end is articulated on the wedge key; One spring, it draws between the outer wall that is located at the described connecting rod and second joint.
2. self off-connecting auto desealing pipeline packer according to claim 1 is characterized in that: coaxial being oppositely arranged of big footpath nose end of the shoulder hole of the shoulder hole of described first backplate and first clamping plate; One end of described first piston is provided with a big retaining plug, it is arranged in the hole, big footpath of shoulder hole of first clamping plate, and seal the path hole of the shoulder hole of first clamping plate, the other end of first piston is provided with a small piston, it is arranged in the path hole of shoulder hole of first backplate, and seals the path hole of the shoulder hole of first backplate; One spring, it is pressed between the hole, big footpath of shoulder hole of the big retaining plug of this first piston and first backplate.
3. self off-connecting auto desealing pipeline packer according to claim 1 is characterized in that: coaxial being oppositely arranged of big footpath nose end of the shoulder hole of the shoulder hole of described second backplate and second clamping plate; One end of described second piston is provided with a big retaining plug, it is arranged in the hole, big footpath of shoulder hole of second clamping plate, and seal the path hole of the shoulder hole of second clamping plate, the other end of second piston is provided with a small piston, it is arranged in the path hole of shoulder hole of second backplate, and seals the path hole of the shoulder hole of second backplate; One spring, it is pressed between the hole, big footpath of shoulder hole of the big retaining plug of this second piston and second backplate.
4. self off-connecting auto desealing pipeline packer according to claim 2 is characterized in that: coaxial being oppositely arranged of big footpath nose end of the shoulder hole of the shoulder hole of described second backplate and second clamping plate; One end of described second piston is provided with a big retaining plug, it is arranged in the hole, big footpath of shoulder hole of second clamping plate, and seal the path hole of the shoulder hole of second clamping plate, the other end of second piston is provided with a small piston, it is arranged in the path hole of shoulder hole of second backplate, and seals the path hole of the shoulder hole of second backplate; One spring, it is pressed between the hole, big footpath of shoulder hole of the big retaining plug of this second piston and second backplate.
5. according to claim 2 or 3 or 4 described self off-connecting auto desealing pipeline packers, it is characterized in that: the diameter of the big retaining plug of described first piston is greater than the diameter of its small piston, and the diameter of the big retaining plug of described second piston is greater than the diameter of its small piston.
6. according to claim 1 or 2 or 3 or 4 described self off-connecting auto desealing pipeline packers, it is characterized in that: be provided with the inclined-plane in the beveled aperture of described second joint, the angle of inclination on this inclined-plane is identical with the angle of inclination on the inclined-plane of described wedge key.
7. self off-connecting auto desealing pipeline packer according to claim 5 is characterized in that: be provided with the inclined-plane in the beveled aperture of described second joint, the angle of inclination on this inclined-plane is identical with the angle of inclination on the inclined-plane of described wedge key.
8. according to claim 1 or 2 or 3 or 4 or 7 described self off-connecting auto desealing pipeline packers, it is characterized in that: described first backplate and first clamping plate wear the tube wall left end that is fixed in described center tube by screw; Described second backplate and second clamping plate wear the tube wall right-hand member that is fixed in described center tube by screw.
9. self off-connecting auto desealing pipeline packer according to claim 5 is characterized in that: described first backplate and first clamping plate wear the tube wall left end that is fixed in described center tube by screw; Described second backplate and second clamping plate wear the tube wall right-hand member that is fixed in described center tube by screw.
10. self off-connecting auto desealing pipeline packer according to claim 6 is characterized in that: described first backplate and first clamping plate wear the tube wall left end that is fixed in described center tube by screw; Described second backplate and second clamping plate wear the tube wall right-hand member that is fixed in described center tube by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101320760A CN100363677C (en) | 2005-12-21 | 2005-12-21 | Self off-connecting auto desealing pipeline packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101320760A CN100363677C (en) | 2005-12-21 | 2005-12-21 | Self off-connecting auto desealing pipeline packer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1786546A CN1786546A (en) | 2006-06-14 |
| CN100363677C true CN100363677C (en) | 2008-01-23 |
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ID=36784115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101320760A Expired - Fee Related CN100363677C (en) | 2005-12-21 | 2005-12-21 | Self off-connecting auto desealing pipeline packer |
Country Status (1)
| Country | Link |
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| CN (1) | CN100363677C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315299A (en) * | 2014-09-15 | 2015-01-28 | 道雨耐节能科技(上海)有限公司 | Non-excavation airbag type pipeline repair device |
| CN110345333A (en) * | 2019-07-26 | 2019-10-18 | 中石化南京工程有限公司 | A kind of novel long-distance oil & gas pipeline robs maintenance construction method |
| CN114618933A (en) * | 2022-03-01 | 2022-06-14 | 哈尔滨工业大学（威海） | Combined type inflation sealing method and device for pipe stamping deformation process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87215056U (en) * | 1987-11-01 | 1988-08-17 | 大庆石油管理局第四采油厂 | Packer cabable of flushing borehole |
| GB2383108A (en) * | 2001-11-03 | 2003-06-18 | Martyn James Smith | Pipe blocking device |
| FR2852661A1 (en) * | 2003-03-18 | 2004-09-24 | Andre Frey | Inaccessible sewage pipe rehabilitation system, has inflatable rings with casing made of elastomer material, circular projecting lug in internal wall of rings, and metallic flanges locked against rings |
| CN2725515Y (en) * | 2004-09-24 | 2005-09-14 | 大庆油田有限责任公司 | Packer used for deep well pressure cracking |
-
2005
- 2005-12-21 CN CNB2005101320760A patent/CN100363677C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87215056U (en) * | 1987-11-01 | 1988-08-17 | 大庆石油管理局第四采油厂 | Packer cabable of flushing borehole |
| GB2383108A (en) * | 2001-11-03 | 2003-06-18 | Martyn James Smith | Pipe blocking device |
| FR2852661A1 (en) * | 2003-03-18 | 2004-09-24 | Andre Frey | Inaccessible sewage pipe rehabilitation system, has inflatable rings with casing made of elastomer material, circular projecting lug in internal wall of rings, and metallic flanges locked against rings |
| CN2725515Y (en) * | 2004-09-24 | 2005-09-14 | 大庆油田有限责任公司 | Packer used for deep well pressure cracking |
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| Publication number | Publication date |
|---|---|
| CN1786546A (en) | 2006-06-14 |
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Granted publication date: 20080123 Termination date: 20121221 |