CN205243457U - Multi -functional bridging plug starter - Google Patents
Multi -functional bridging plug starter Download PDFInfo
- Publication number
- CN205243457U CN205243457U CN201520946033.5U CN201520946033U CN205243457U CN 205243457 U CN205243457 U CN 205243457U CN 201520946033 U CN201520946033 U CN 201520946033U CN 205243457 U CN205243457 U CN 205243457U
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- China
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- hydraulic cylinder
- central tube
- top connection
- cylinder chamber
- wall
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Abstract
The utility model discloses a multi -functional bridging plug starter, including the center tube and connect the top connection and the ball seat at both ends about the center tube respectively, still include on hydraulic cylinders cover, hydraulic pressure cylinder liner, lock claw, piston piece down, on hydraulic cylinders cover inner wall tight cover simultaneously can endwise slip at top connection outer wall and center tube outer wall, forming between on hydraulic cylinders cover, top connection, the center tube three and going up the sealing cylinder chamber, wherein the through -hole that leads to last sealing cylinder chamber is seted up to the center tube, the empty cover in the center tube outside has lower hydraulic pressure cylinder liner and annular space each other forms cylinder chamber down, and wherein the center tube is offered and is led to cylinder chamber's through -hole down, set up piston piece and lock claw down among the cylinder chamber. The utility model provides an it is limited great to go into the degree of depth among the prior art under the instrument, and the formal operations of gunpowder blasting expect much, have a big risk, the low scheduling problem of stability. Furthermore, the utility model discloses the top connection has designed ball seat receiving means, can accept the ball seat of suppressing of upper portion instrument, has had the effect of accepting a section of thick bamboo.
Description
Technical field
The utility model relates to can bore bridging plug staged fracturing technology kit, and specifically multifunctional bridge plug startsDevice.
Background technology
At present, can bore bridging plug staged fracturing technology and obtain being applicable to a certain degree, but go back in practice of constructionExist some limitation. Wherein bridging plug setting tool, could be smooth to bridging plug as the starting drive that can bore bridging plug and setWhether set, set to put in place and have decisive role, at present, bridging plug setting tool is to connect upper bridging plug top, by electricityCable is conveyed into well, if in horizontal well, also needs ground to coordinate filling liquid to promote to advance, and is subject to cable gravity and performance shadowRing, at present cable at most can only means of delivery to 3500m left and right well depth, otherwise cable will have to break and take off risk, therefore, 3500mAbove deep-well cannot be implemented this technique, and the startup of bridging plug setting tool is by ground ignition control, light seatEnvelope tool interior gunpowder, makes its explosion produce pushed at high pressure piston, sets thereby make to bore bridging plug startup, and this needs specialPersonnel carry out installation and the associative operation of gunpowder, higher to technical staff's qualification requirement. Therefore, current bored bridging plug is satThe application of envelope instrument also has some limitations.
Utility model content
The purpose of this utility model is to provide multifunctional bridge plug starter, and in solution prior art, instrument depth of setting is limitedThe problems such as larger, that the formal operations of gunpowder explosion require is high, have a big risk, stability is low. And, on the utility model, connectHead has designed ball seat support structure, can accept the ball seat of suppressing of upper tool, has had both the effect of accepting cylinder. This is multi-functionalBridging plug starter, can be lowered in the above deep-well of 5000m and work, and is suppressed and is controlled its startup by ground, can make to bore bridging plugSet more accurate reliably, there is installation, simple to operate, dependable performance, widely used feature.
In order to reach above-mentioned purpose, the utility model has adopted following technical scheme, and multifunctional bridge plug starter, in comprisingCore barrel and be connected to top connection and the ball seat at the upper and lower two ends of central tube, also comprise hydraulic cylinder, lower hydraulic cylinder,Lock pawl, piston block, described upper hydraulic cylinder inwall is tightly placed in top connection outer wall and central tube outer wall simultaneously and can slides axially,Between described upper hydraulic cylinder, top connection, central tube three, form upper sealing cylinder chamber, wherein central tube is offered towards upper closeThe through hole in envelope cylinder chamber; Described central tube outside is set with lower hydraulic cylinder and annular space each other forms lower cylinder chamber, itsMiddle central tube is offered the through hole that leads to lower cylinder chamber, and piston block and lock pawl are set in described lower cylinder chamber, wherein locks pawl and is positioned at pistonPiece upper end and by shoulder axial limiting on central tube outer wall, described lock pawl lower end outer wall is offered elasticity outer lug boss pawl head,Lower hydraulic cylinder inwall is offered the reducing platform for coordinating elasticity outer lug boss pawl head, liquid on the butt of described lower hydraulic cylinder upper endDevice for pressing cylinder liner, lower end is connected with tail cover by connector, and wherein tail overlaps ball seat entirety empty set self inside, and ball seatTail cover lower surface can not be given prominence in lower surface.
Described upper hydraulic cylinder upper end is temporarily fixed in top connection by upper shear pin.
Between described upper hydraulic cylinder inwall and top connection and central tube outer wall, sealing ring is set, described lock pawl inside and outside wall withBetween lower hydraulic cylinder and central tube, sealing ring is all set; Described piston inside and outside wall also all arranges sealing ring.
Described top connection inwall has designed ball seat support structure.
Compared to prior art, the utlity model has following beneficial effect:
The utility model multifunctional bridge plug starter top connects to carry by coiled tubing goes into the well, and entering well depth can exceed5000m, compares and connects the setting tool that can only be lowered into 3500m position by cable at present, has certain advantage, baseOriginally can meet all needs that bore bridging plug fractured well in current oil field, compared to the seat of existing cable control gunpowder blasting typeThe working method of envelope instrument, the utility model is to be controlled and suppressed by coiled tubing ground, operate more accurate, and phaseFor the high standard requirement of gunpowder operation, the mode that pump truck is suppressed is also safer reliable, easy operating. Simultaneously multi-functionalWhat the top connection of bridging plug starter and central tube formed accept, and cylinder can accept that top falls suppresses ball seat, reduced the work of pipe stringTool quantity, has the feature of an instrument multi-functional.
Brief description of the drawings
Fig. 1 is the structural representation of multifunctional bridge plug starter of the present utility model.
In figure: tail cover 1, ball seat 2, connector 3, piston block 4, lower hydraulic cylinder 5, lock pawl 6, sealing ring 7, inCore barrel 8, upper hydraulic cylinder 9, top connection 10.
Detailed description of the invention
Relevant detailed description of the present utility model and technology contents, coordinate brief description of the drawings as follows, but accompanying drawing only provides referenceWith the use of explanation, be not used for the utility model to be limited.
According to Fig. 1, multifunctional bridge plug starter, comprises central tube 8 and is connected to the upper of the upper and lower two ends of central tubeJoint 10 and ball seat 2, also comprise hydraulic cylinder 9, lower hydraulic cylinder 5, lock pawl 6, piston block 4, described upper hydraulic pressureCylinder sleeve 9 inwalls are tightly placed in top connection outer wall and central tube 8 outer walls simultaneously and can slide axially, described upper hydraulic cylinder 9, onBetween joint 10, central tube 8 threes, form upper sealing cylinder chamber, wherein central tube 8 is offered the through hole that leads to upper sealing cylinder chamber;Described central tube 8 outsides are set with lower hydraulic cylinder 5 and annular space each other forms lower cylinder chamber, and wherein central tube leavesIf lead to the through hole in lower cylinder chamber, piston block 4 and lock pawl 6 are set in described lower cylinder chamber, wherein piston block 4 is enclosed within central tube 8Upper, and be temporarily connected with the pawl head of lock pawl 6 by lower shear pin, described lock pawl 6 lower end outer walls are offered elasticity outer lug boss pawl head,Lower hydraulic cylinder 5 inwalls are offered the reducing platform for coordinating elasticity outer lug boss pawl head, described lower hydraulic cylinder 5 upper end buttsUpper hydraulic cylinder 9, lower end is connected with tail cover 1 by connector 3, and wherein tail cover 1 is in overall ball seat 2 empty set selfPortion, there is certain distance in the two lower surface in the axial direction. When other instruments such as multifunctional bridge plug starter below and bridging plug connectAfter connecing, between tail cover and ball seat, can realize axial relative displacement. Described upper hydraulic cylinder 9 upper ends are temporarily fixing by upper shear pinIn top connection 10. The shear strength of described upper shear pin is less than lower shear pin, and when work, upper shear pin is first cut off, and upper fluid cylinder firstOpen. Described upper fluid cylinder promotes lower hydraulic cylinder after opening descending, locks pawl boss pawl head and lower hydraulic pressure after descending certain strokeThe touching of inboard wall of cylinder liner boss, lower hydraulic cylinder is limited, and lower cylinder chamber forces lower shear pin to be cut off. Described lower shear pin is cut off rear workChock moves down release lock pawl, drives connector and lower hydraulic cylinder to continue descending, and lock pawl elastic claw head is pushed back. On described,In the opening procedure of lower cylinder chamber, between tail cover and ball seat, constantly produce reverse axial displacement.
The shear strength of described upper shear pin is less than lower shear pin, and when work, upper shear pin is first cut off, and first upper fluid cylinder is opened. DescribedBetween upper hydraulic cylinder inwall and top connection and central tube outer wall, sealing ring is set, described lock pawl inside and outside wall and lower hydraulic cylinderBetween cover and central tube, sealing ring is all set; Described piston inside and outside wall also all arranges sealing ring. Described top connection inwall is establishedCount ball seat support structure.
Top connection 10 is connected to central tube 8 tops, and upper hydraulic cylinder 9 is enclosed within outside top connection 10, and three forms annular seal space,Pitching, to ball seat 2, blocks lower passage, and first the inlet opening of the central tube 8 upper end bottoms of thread enters in the time suppressing from oil pipeLiquid, in promotion, hydraulic cylinder 9 moves down, and upper hydraulic cylinder 9 lower end steps coordinate with lower hydraulic cylinder 5 upper ends, withIn time, promotes one piece and moves down, and hydraulic cylinder 5 moves after certain stroke instantly, and its inner inclined platform is encountered lock pawl 6 pawlsLimited, and stop mobilely, in the time that oil pipe continues to suppress, central tube 8 middle part inlet openings start feed liquor, make lower hydraulic pressureCylinder sleeve 5 plays pressure with the annular seal space of lock pawl 6 and piston block 4 three's compositions, and pressure promotes piston block 4 and cuts off shear pin,Piston block 4 is moved down, separate with lock pawl 6, while continuing to suppress, piston block 4 promotes connector 3, and connector 3 drives lower liquidDevice for pressing cylinder liner 5, makes its inner inclined platform that lock pawl 6 pawl heads are pushed back and be moved down, and connector 3 connects the tail cover 1 of bottom simultaneouslyMove down, because ball seat 2 is connected with central tube 8, therefore, tail cover 1 forms reciprocal relative displacement with ball seat 2, fromAnd provide and start the stroke setting to bridging plug. When reaching after the required stroke of bridging plug, lower hydraulic cylinder 5 continues to move down and will exposeSealing ring 7, will lose and be sealed and matched between lower hydraulic cylinder 5 and lock pawl 6, thereby make multifunctional bridge plug setting tool insidePressure release, finishes the work and trips out smoothly.
The foregoing is only preferred embodiment of the present utility model, non-in order to limit the scope of the claims of the present utility model, otherUse the equivalence of patent spirit of the present utility model to change, all should all belong to the scope of the claims of the present utility model.
Claims (5)
1. multifunctional bridge plug starter, comprise central tube and be connected to top connection and the ball seat at the upper and lower two ends of central tube, it is characterized in that, also comprise hydraulic cylinder, lower hydraulic cylinder, lock pawl, piston block, described upper hydraulic cylinder inwall is tightly placed in top connection outer wall and central tube outer wall simultaneously and can slides axially, between described upper hydraulic cylinder, top connection, central tube three, form upper sealing cylinder chamber, wherein central tube is offered the through hole that leads to upper sealing cylinder chamber, described central tube outside is set with lower hydraulic cylinder and annular space each other forms lower cylinder chamber, wherein central tube is offered the through hole that leads to lower cylinder chamber, piston block and lock pawl are set in described lower cylinder chamber, wherein locking pawl is positioned at piston block upper end and passes through shoulder axial limiting on central tube outer wall, described lock pawl lower end outer wall is offered elasticity outer lug boss pawl head, lower hydraulic cylinder inwall is offered the reducing platform for coordinating elasticity outer lug boss pawl head, hydraulic cylinder on the butt of described lower hydraulic cylinder upper end, lower end is connected with tail cover by connector, wherein tail cover is ball seat entirety empty set self inside, and tail cover lower surface can not be given prominence in ball seat lower surface.
2. multifunctional bridge plug starter according to claim 1, is characterized in that, described upper hydraulic cylinder upper end is temporarily fixed in top connection by upper shear pin.
3. multifunctional bridge plug starter according to claim 1, is characterized in that, the elasticity outer lug boss pawl head inwall of described lock pawl lower end is temporarily fixed on piston block by lower shear pin.
4. multifunctional bridge plug starter according to claim 1, is characterized in that, between described upper hydraulic cylinder inwall and top connection and central tube outer wall, sealing ring is set, and between described lock pawl inside and outside wall and lower hydraulic cylinder and central tube, sealing ring is all set; Described piston inside and outside wall also all arranges sealing ring.
5. multifunctional bridge plug starter according to claim 1, is characterized in that, described top connection inwall has designed ball seat support structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520946033.5U CN205243457U (en) | 2015-11-24 | 2015-11-24 | Multi -functional bridging plug starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520946033.5U CN205243457U (en) | 2015-11-24 | 2015-11-24 | Multi -functional bridging plug starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205243457U true CN205243457U (en) | 2016-05-18 |
Family
ID=55942537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520946033.5U Expired - Fee Related CN205243457U (en) | 2015-11-24 | 2015-11-24 | Multi -functional bridging plug starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205243457U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868675A (en) * | 2018-06-05 | 2018-11-23 | 杰瑞能源服务有限公司 | Bridge plug is hydraulic to surge setting tool and bridge plug sets method |
| CN110485957A (en) * | 2019-08-20 | 2019-11-22 | 成都若克石油技术开发有限公司 | Disposable setting tool |
-
2015
- 2015-11-24 CN CN201520946033.5U patent/CN205243457U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868675A (en) * | 2018-06-05 | 2018-11-23 | 杰瑞能源服务有限公司 | Bridge plug is hydraulic to surge setting tool and bridge plug sets method |
| CN108868675B (en) * | 2018-06-05 | 2024-03-19 | 杰瑞能源服务有限公司 | Bridge plug hydraulic setting tool and bridge plug setting method |
| CN110485957A (en) * | 2019-08-20 | 2019-11-22 | 成都若克石油技术开发有限公司 | Disposable setting tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20191124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |