CN206233897U - Fractured horizontal well bridging plug - Google Patents
Fractured horizontal well bridging plug Download PDFInfo
- Publication number
- CN206233897U CN206233897U CN201621236230.9U CN201621236230U CN206233897U CN 206233897 U CN206233897 U CN 206233897U CN 201621236230 U CN201621236230 U CN 201621236230U CN 206233897 U CN206233897 U CN 206233897U
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- CN
- China
- Prior art keywords
- piston
- giving
- adapter sleeve
- fixture block
- slips
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
Fractured horizontal well bridging plug, it is characterised in that：Piston of giving up is connected by upper fixture block with central tube, and attachment cap is connected by lower fixture block with upper press ring, and upper fixture block and lower fixture block are fixed by setting piston, are set piston and are connected with piston of giving up by setting pin.Connection set upper side is connected by pin of giving up with piston of giving up；Open the threaded connection lower cone of valve in adapter sleeve lower end.Put forward unreeling and be fixedly connected with adapter sleeve by unsealing pin, carry unreeling threaded upper ends connection fishing head and basepipe seal, lock is installed with adapter sleeve locking in packing element axle.Slips lock is installed with adapter sleeve locking in upper cone.The utility model has the characteristics that：First, rear center's pipe of giving up is separated with fishing head, there is interior latus rectum after giving up；Second, increasing a slips lock, slips anchoring part is locked after the completion of setting, in anti-high pressure, anchor portion does not retract, it is ensured that packing element sealed reliable.
Description
Technical field
The utility model is related to a kind of oil and gas field downhole tool, more particularly to it is a kind of be applied to horizontal well bottom water plugging and
The fractured horizontal well bridging plug of selected layer fracture.
Background technology
At present, there are two, first in fractured horizontal well bridging plug used by home and abroad：Setting rear interior cavity of giving up is sealed by silk
Block, by side opening draining, the operations such as back-up sand, acidifying, pressure break can not be directly carried out after giving up, after need to having given up out, then weigh
New lower tubular column carries out the operations such as back-up sand, acidifying, pressure break, and flow chart is more, and duty cycle is long, used as high cost；Second：Bridging plug glue
, using a lock locking, in anti-upper end high pressure, packing element produces further compression, and slips part lower cone is moved down for cylinder and slips,
Again during anti-lower end high pressure, moved on the lower cone of slips part, packing element is compressed away from rollback, seal failure.
Utility model content
The purpose of this utility model is to overcome above technical deficiency, there is provided one kind send envelope instrument to set rear interior cavity of giving up to be had
Latus rectum, while increasing the fractured horizontal well bridging plug of slips lock.
The technical scheme of use is：
Fractured horizontal well bridging plug, mainly by top connection, cylinder barrel, central tube, piston of giving up, sets piston, fishing head, company
Connect cap, carry unreeling, upper press ring, packing element axle, packing element, lower pressure ring, adapter sleeve, upper cone, slips cover, slips, lower cone, fairlead
It is assembled into, it is characterised in that：
Piston of giving up is connected by upper fixture block with central tube, and attachment cap is connected by lower fixture block with upper press ring, upper fixture block and
Lower fixture block is fixed by setting piston, is set piston and is connected with piston of giving up by setting pin.Connection set upper side is by pin of giving up
Piston of following closely and give up is connected；Open the threaded connection lower cone of valve in adapter sleeve lower end.Put forward unreeling and consolidated with adapter sleeve by unsealing pin
Fixed connection, carries unreeling threaded upper ends connection fishing head and basepipe seal, and lock is installed in packing element axle with adapter sleeve locking.Upper cone
Interior installation slips lock and adapter sleeve locking.
The fractured horizontal well bridging plug course of work：Set, top connection connected pipes post is gone into the well behind arrival setting position, connecting tube
Line, injects highly pressurised liquid, and liquid stream promotes to set piston and cut and sets descending after pin, and upper fixture block and lower fixture block release connection, push away
Dynamic packing element axle is descending, and slips anchoring sleeve pipe is locked by slips and locked with adapter sleeve, and envelope that packing element is swollen, lock is locked with adapter sleeve, reaches seat
After seal pressure, piston of giving up is cut to be given up and give up after pin, top connection, cylinder barrel, central tube, piston of giving up, sets piston, upper card
Block, attachment cap, lower fixture block and following instrument are separated；Deblocking：Gone into the well with oil pipe connection fishing tool and catch fishing head, above propose cutting
Deblocking pin, it is up to put forward unreeling, tangles adapter sleeve, and adapter sleeve is disengaged with lower cone, after tangle packing element axle, packing element, slips are reclaimed,
Instrument is unsealed.
Fractured horizontal well bridge plug technology performance indications：
Set 20 ± 2MPa of pressure
Pressure difference≤70MPa in work
Lower pressure difference≤the 70MPa of work
40-60KN of solution seal pressure
Operating temperature≤150 DEG C
Fractured horizontal well bridging plug is applied to oil and gas well bottom water plugging and selected layer fracture.
The utility model has the characteristics that：First, rear center's pipe of giving up is separated with fishing head, there is interior latus rectum after giving up；
Second, increasing a slips lock, slips anchoring part is locked after the completion of setting, in anti-high pressure, anchor portion does not retract, and protects
Card packing element sealed reliable.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present utility model.
Specific embodiment
Fractured horizontal well bridging plug, mainly by top connection 1, cylinder barrel 2, central tube 3, piston 4 of giving up, set piston 5, salvage
First 7, attachment cap 8, carry unreeling 10, upper press ring 11, packing element axle 12, packing element 13, lower pressure ring 14, adapter sleeve 16, upper cone 17, slips
Cover 18, slips 20, lower cone 21, fairlead 22 are assembled into, it is characterised in that：
Piston 4 of giving up is connected by upper fixture block 6 with central tube 3, and attachment cap 8 is connected by lower fixture block 9 with upper press ring 11, on
Fixture block 6 and lower fixture block 9 are fixed by setting piston 5, are set piston 5 and are connected with piston 4 of giving up by setting pin 25.Adapter sleeve 16
Upper end is connected by pin 24 of giving up with piston 4 of giving up；Open the threaded connection lower cone 21 of valve in the lower end of adapter sleeve 16.Put forward unreeling 10
It is fixedly connected with adapter sleeve 16 by unsealing pin 23, carries the threaded upper ends of unreeling 10 connection fishing head 7 and sealed with central tube 3, glue
Lock 15 is installed in cylinder axle 12 to be locked with adapter sleeve 16.Slips lock 19 is installed in upper cone 17 to be locked with adapter sleeve 16.
Claims (1)
1. fractured horizontal well bridging plug is mainly by top connection (1), cylinder barrel (2), central tube (3), piston of giving up (4), sets piston
(5), fishing head (7), attachment cap (8), carry unreeling (10), upper press ring (11), packing element axle (12), packing element (13), lower pressure ring (14),
Adapter sleeve (16), upper cone (17), slips cover (18), slips (20), lower cone (21), fairlead (22) are assembled into, its feature
It is：
Piston (4) of giving up is connected by upper fixture block (6) with central tube (3), and attachment cap (8) is by lower fixture block (9) and upper press ring
(11) connect, upper fixture block (6) and lower fixture block (9) are fixed by setting piston (5), set piston (5) by set pin (25) and
Piston (4) of giving up is connected；Adapter sleeve (16) upper end is connected by pin of giving up (24) with piston of giving up (4)；Under adapter sleeve (16)
Open the threaded connection lower cone (21) of valve in end；Put forward unreeling (10) and be fixedly connected with adapter sleeve (16) by unsealing pin (23), carry
Unreeling (10) threaded upper ends connect fishing head (7) and are sealed with central tube (3), and lock (15) and adapter sleeve are installed in packing element axle (12)
(16) lock；Slips lock (19) is installed in upper cone (17) to be locked with adapter sleeve (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621236230.9U CN206233897U (en) | 2016-11-18 | 2016-11-18 | Fractured horizontal well bridging plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621236230.9U CN206233897U (en) | 2016-11-18 | 2016-11-18 | Fractured horizontal well bridging plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206233897U true CN206233897U (en) | 2017-06-09 |
Family
ID=58990317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621236230.9U Active CN206233897U (en) | 2016-11-18 | 2016-11-18 | Fractured horizontal well bridging plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206233897U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965292A (en) * | 2018-01-12 | 2018-04-27 | 大庆市天德忠石油科技有限公司 | A kind of big orifice bridge plug |
| CN112228005A (en) * | 2020-09-27 | 2021-01-15 | 齐齐哈尔亚盛机械制造有限公司 | Low setting force bridge plug capable of fishing for well lifting and pressure relief |
-
2016
- 2016-11-18 CN CN201621236230.9U patent/CN206233897U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965292A (en) * | 2018-01-12 | 2018-04-27 | 大庆市天德忠石油科技有限公司 | A kind of big orifice bridge plug |
| CN112228005A (en) * | 2020-09-27 | 2021-01-15 | 齐齐哈尔亚盛机械制造有限公司 | Low setting force bridge plug capable of fishing for well lifting and pressure relief |
| CN112228005B (en) * | 2020-09-27 | 2023-03-14 | 齐齐哈尔亚盛机械制造有限公司 | Low setting force bridge plug capable of fishing for well lifting and pressure relief |
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| GR01 | Patent grant |