CN202706984U - Insertion pipe bridge plug of fast change layer - Google Patents
Insertion pipe bridge plug of fast change layer Download PDFInfo
- Publication number
- CN202706984U CN202706984U CN 201220273786 CN201220273786U CN202706984U CN 202706984 U CN202706984 U CN 202706984U CN 201220273786 CN201220273786 CN 201220273786 CN 201220273786 U CN201220273786 U CN 201220273786U CN 202706984 U CN202706984 U CN 202706984U
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- sliding sleeve
- intubate
- urceolus
- slip
- central tube
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Abstract
The utility model relates to an insertion pipe bridge plug of a fast change layer. An upper contact is connected with a sealing insertion pipe by a bridge pipe, a sealing piston is arranged in a sealing outer cylinder, a safety pin, a force transfer cylinder, a locking ring and a fishing head are arranged in a rubber cylinder press cap, an external central pipe is connected below the rubber cylinder press cap, a spacing ring is annularly arranged between rubber cylinders, the fishing head is connected with the upper contact of a central pipe by a de-locking pin, a rubber cylinder seat is connected with an upper cone, the upper cone is positioned outside the central pipe, a dual-way slip and a slip spring are arranged in a slip sleeve, a lower cone is connected with the central pip, a slip sleeve cap is connected with the slip sleeve, a ball seat controls a hanging locking block, a locking ball controls the positioning of a sliding sleeve, and the lower contact is connected with a sliding sleeve outer cylinder. The insertion pipe bridge plug is convenient to construct, and has good plugging effect and long service life.
Description
Technical field
The utility model relates to the oil field development technical field, especially relates to a kind of intubate bridging plug that fast changes layer that oil well uses.
Background technology
Along with the propelling of oil mining and the reinforcement of water filling, oil reservoir water outlet or water logging are day by day serious, the workload of control hydromining oil increases gradually, and oil field scheme commonly used is that flow string carries packer every adopting or after lower bridging plug carries out temporary plugging, descending flow string production again at present.All there is certain defect in this two schemes: 1, packer is when adopting, and packer bears the flow string wriggling, is easy to lose envelope, and the life-span is short; 2, packer is when adopting production inspection pump, and oil reservoir directly is communicated with up and down, and the water-sensitive oil reservoir is easily contaminated; 3, in the bridging plug temporary plugging scheme, beat bridging plug and lower flow string must carry out step by step, workload is large, if control wet concentration fault mistake occurs, can't adjust, and must trip out flow string, seal again, and workload further increases, and cost increases.
Summary of the invention
In view of the defective that above-mentioned prior art exists, the utility model purpose be propose in order to overcome above-mentioned shortcoming to change flexibly layer production, can free production control oil reservoir and protect the bottom plugged zone when producing or check pump, not disturbed by supernatant liquid and pollute a kind of intubate bridging plug that fast changes layer.
The technical solution of the utility model is: top connection is connected through bridge pipe with the sealing intubate, set to place in the urceolus and set piston, safety pin, the power transmission cylinder, lock ring, fishing head is loaded in the rubber cylinder pressing cap, exterior central tube connects the rubber cylinder pressing cap below, the spacer ring ring is between packing element, fishing head links to each other with the central tube top connection through the deblocking pin, glue tube base links to each other with upper cone, upper cone is positioned at outside the central tube, place bi-directional slip and slips spring in the slip sleeve, lower cone is connected with central tube, and slip sleeve and cap connect slip sleeve, and lock dog is hung in ball seat control, lock ball control sliding sleeve position, lower contact is connected with the sliding sleeve urceolus.
Because the utilization of technique scheme, the utility model compared with prior art has following advantages: flow string and bridging plug seal tubing string are gone into the well synchronously, construct convenient, after bridging plug sets, can produce oil reservoir by flexible choice, and can adjust aborning temporarily, the adjustment workload is little, individual layer is produced or during the inspection pump, and the bottom oil reservoir all can be not disturbed and be polluted, and this is to water-sensitive oil reservoir particular importance, bridging plug is with respect to every adopting for the tubing string, it is not affected by string creep, and plugging effect is better, and the life-span is longer.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is bridging plug agent structure cross-sectional schematic of the present utility model;
Fig. 3 is control shift sleeve structure cross-sectional schematic of the present utility model;
The specific embodiment
Shown in Fig. 1-3: the utility model: top connection 1 is threaded through bridge pipe 2 with sealing intubate 4, set urceolus 3 interior placements and set piston 5, safety pin 6, power transmission cylinder 7, lock ring 8, rubber cylinder pressing cap 9, fishing head 10 is loaded in the rubber cylinder pressing cap 9, exterior central tube 14 is through being threadedly connected to rubber cylinder pressing cap 9 belows, spacer ring 16 encircles between packing element 15, can slide at upper cone 18 inner chambers in exterior central tube 14 bottoms, packing element 15, spacer ring 16, central tube 13, fishing head 10 links to each other with central tube top connection 12 through deblocking pin 11, upper cone 18 is positioned at outside the central tube 13, can be in central tube 13 outer slips, bi-directional slip 20 can be promoted and radial motion by upper cone 18, slip sleeve 19 is accommodated bi-directional slip 20 and slips spring 21, slips spring 21 makes bi-directional slip 20 shrink the footpath under free state, packing element is also lower to link to each other through screw thread with upper cone 18 glue tube base 17 for supporting, lower cone 22 is threaded connection with central tube 13, can support bi-directional slip 20, hang lock dog 25 locking sealing intubate 4 with central tube 13 and can carry bridging plug main body and bottom tubing string weight, connect slip sleeve 19 on slip sleeve and the cap 23, lock dog 25 is hung in ball seat 24 controls, the pin 26 of giving up, bridge joint short oil pipe 27, control intubate 28, leading cone 37, sliding sleeve urceolus 29, urceolus bypass 31 is communicated with the bottom oil reservoir, but sliding sleeve 33 surge motion control urceolus bypass 31 on off states, lock ball 32 control sliding sleeves 33 axial locations, sliding sleeve bypass 34 is positioned at and is communicated with urceolus bypass 31 and oil reservoir on the sliding sleeve 33, support spring 35 supports sliding sleeve 33 and can expand and help it to reset, lower contact 36 is threaded through sliding sleeve bridge pipe 38 with sliding sleeve urceolus 29, sliding sleeve urceolus 29 tops are threaded with bridge joint short oil pipe 27, and all there is sealing ring 39 the flat thread junction.
Setting piston 5 is positioned at and sets urceolus 3 inner chambers, under the highly pressurised liquid effect, at first cut off the safety pin 6 that fixedly sets urceolus 3 and power transmission cylinder 7, continue to carry out power transmission cylinder 7 and rubber cylinder pressing cap 9 downwards, and bridging plug set finish after by below step stop all the time at the inner chamber that sets urceolus 3.
Rubber cylinder pressing cap 9 can be set piston and be pushed away for 5 times, and is descending along fishing head 10 and central tube 13, compression packing element 15 and upper cone 18, the inner integrated lock ring 8 of rubber cylinder pressing cap 9 can with the axial anti-back threaded engagement of fishing head 10 outsides, formation self-locking after bridging plug sets and finishes.
Exterior central tube 14 is through being threadedly connected to rubber cylinder pressing cap 9 belows, its overcoat packing element 15 and spacer ring 16, and can slide at the inner chamber of upper cone 18 in its underpart.
Packing element 15 can promote 18 times enforcements of upper cone bi-directional slip 20 and stretch out the grappling sleeve pipe before compression, can form sealing after it is compressed, and the blocking-up up and down outside of oil reservoir is communicated with.
Central tube 13 is face and contact sealing state with sealing intubate 4, and oil reservoir was through the bridging plug internal communication about face contact sealing of its long section had effectively stoped.
Hang lock dog 25 and be fixed wtih sealing intubate 4 and central tube 13, set front weight of carrying bridging plug main body and bottom tubing string, and fettered by ball seat 24.Complete when the bridging plug compression, after the pin 26 of giving up was cut off, ball seat 24 dropped to control intubate 28 bottoms, hangs lock dog 25 and is released, and sealing intubate 4 is separated with central tube, and the top connection 1, the control intubate 28 that link to each other with sealing intubate 4 screw threads can trip out when needed at any time.
Among Fig. 3: the sliding sleeve urceolus 29 of control sliding sleeve, control intubate 28, lock ball 32, sliding sleeve 33, compressed support spring 22, lower then 23 a composition cock system.Control has flowing hole 24 on the intubate 28, and sliding sleeve urceolus 29 interior settings are hung locked grooves 30, and lock ball 32 diameters are greater than the minor diameter of the tapered hole of opening on the wall thickness of sliding sleeve 33 and the sliding sleeve 33, less than sliding sleeve 33 wall thickness, sliding sleeve urceolus 29 interior suspension locked groove 30 degree of depth sums.Urceolus bypass 31, sliding sleeve bypass 34, control intubate 28 consist of the fluid course of bridging plug bottom oil reservoir and oil pipe inside, and are held open state before control intubate 28 is extracted.Sliding sleeve bypass 34, sliding sleeve 33, control intubate 28 form the communicating passage of bottom oil reservoir and oil pipe inside.
After control intubate 28 is extracted out, compressed support spring 22 is expanded gradually and is resetted, lock ball 32 loses the radial constraint of sealing intubate 16, partly stretch out along the tapered hole on the sliding sleeve 33, sliding sleeve 33 loses under the expansion reset response that is suspended on support spring 35 of sliding sleeve urceolus 29 and is up to limited the stopping of sliding sleeve urceolus 29 upper step, this moment, sliding sleeve 33 blocked the urceolus bypass 31 on the sliding sleeve urceolus, and oil reservoir is through the liquid road of bridging plug internal communication about having blocked.
When sealing intubate 4 promotes control intubate 28 and advances to lock ball 32, can't radial displacement by sliding sleeve urceolus 29 inner wall limit because of lock ball 32, control intubate 28 will promote lock ball 32 and sliding sleeve 33 integral body are descending; When lock ball 32 went downwards to suspension locked groove 30 place, to hanging in the locked groove 30, sliding sleeve 33 formed suspension with sliding sleeve urceolus 29 through lock ball 32 to lock ball 32 with radial dilatation.Control intubate 28 passes that lock ball 32 is descending until sealing intubate 4 is spacing by step, seals intubate 4 and the sealing of central tube 13 formation faces this moment, blocking-up up and down oil reservoir through the liquid road of bridging plug internal communication.
Urceolus bypass 31,34 alignment of sliding sleeve bypass are with the fluid course of control intubate flowing hole 24 formation bridging plug bottom oil reservoirs and oil pipe inside.
If at sealing intubate 4 tops access eye pipe, then after control intubate 28 is passed lock ball 32, oil reservoir can pass through urceolus bypass 31, sliding sleeve bypass 34, control intubate flowing hole 24, sealing intubate 4 inner chambers, eye pipe and is communicated with up and down during pump in inspection, the realization bilayer closes to be adopted.
Certainly above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the people who is familiar with technique can understand content of the present utility model and according to this enforcement, can not limit protection domain of the present utility model with this.All equivalent transformation or modifications of doing according to the Spirit Essence of the utility model main technical schemes all should be encompassed within the protection domain of the present utility model.
Claims (4)
- One kind fast change the layer the intubate bridging plug, it is characterized in that: top connection is connected through bridge pipe with the sealing intubate, set to place in the urceolus and set piston, safety pin, the power transmission cylinder, lock ring, fishing head is loaded in the rubber cylinder pressing cap, exterior central tube connects the rubber cylinder pressing cap below, the spacer ring ring is between packing element, fishing head links to each other with the central tube top connection through the deblocking pin, glue tube base links to each other with upper cone, upper cone is positioned at outside the central tube, places bi-directional slip and slips spring in the slip sleeve, and lower cone is connected with central tube, slip sleeve and cap connect slip sleeve, lock dog is hung in ball seat control, lock ball control sliding sleeve position, and lower contact is connected with the sliding sleeve urceolus.
- 2. a kind of intubate bridging plug that fast changes layer according to claim 1 is characterized in that: sliding sleeve urceolus, control intubate, lock ball, sliding sleeve, compressed support spring, a lower then composition cock system; Control has flowing hole on the intubate, and the suspension locked groove is set in the sliding sleeve urceolus, and the lock ball diameter is greater than the minor diameter of the tapered hole of opening on the wall thickness of sliding sleeve and the sliding sleeve, less than hanging lock groove depth sum in sliding sleeve wall thickness, the sliding sleeve urceolus.
- 3. a kind of intubate bridging plug that fast changes layer according to claim 1 is characterized in that: the alignment of urceolus bypass, sliding sleeve bypass consists of the fluid course of bridging plug bottom oil reservoir and oil pipe inside with control intubate flowing hole.
- 4. a kind of intubate bridging plug that fast changes layer according to claim 3 is characterized in that: central tube with seal intubate and be face and contact sealing state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220273786 CN202706984U (en) | 2012-06-11 | 2012-06-11 | Insertion pipe bridge plug of fast change layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220273786 CN202706984U (en) | 2012-06-11 | 2012-06-11 | Insertion pipe bridge plug of fast change layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202706984U true CN202706984U (en) | 2013-01-30 |
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ID=47587293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220273786 Expired - Lifetime CN202706984U (en) | 2012-06-11 | 2012-06-11 | Insertion pipe bridge plug of fast change layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202706984U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074491A (en) * | 2014-07-09 | 2014-10-01 | 中国石油集团渤海钻探工程有限公司 | Oil pipe bridge plug |
| CN104879078A (en) * | 2014-03-02 | 2015-09-02 | 山东兆鑫石油工具有限公司 | Releasing apparatus |
| CN109025898A (en) * | 2018-10-11 | 2018-12-18 | 天津市玛特瑞科技有限公司 | A kind of solvable bridge plug |
| CN113187434A (en) * | 2020-01-14 | 2021-07-30 | 胜利油田利丰稠油技术开发有限公司 | Composite material fast drilling cannula bridge plug |
-
2012
- 2012-06-11 CN CN 201220273786 patent/CN202706984U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879078A (en) * | 2014-03-02 | 2015-09-02 | 山东兆鑫石油工具有限公司 | Releasing apparatus |
| CN104879078B (en) * | 2014-03-02 | 2017-06-06 | 山东兆鑫石油工具有限公司 | A kind of releasing device |
| CN104074491A (en) * | 2014-07-09 | 2014-10-01 | 中国石油集团渤海钻探工程有限公司 | Oil pipe bridge plug |
| CN109025898A (en) * | 2018-10-11 | 2018-12-18 | 天津市玛特瑞科技有限公司 | A kind of solvable bridge plug |
| CN113187434A (en) * | 2020-01-14 | 2021-07-30 | 胜利油田利丰稠油技术开发有限公司 | Composite material fast drilling cannula bridge plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |