CN107013185A - A kind of NEW TYPE OF COMPOSITE bridging plug - Google Patents

A kind of NEW TYPE OF COMPOSITE bridging plug Download PDF

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Publication number
CN107013185A
CN107013185A CN201610159243.9A CN201610159243A CN107013185A CN 107013185 A CN107013185 A CN 107013185A CN 201610159243 A CN201610159243 A CN 201610159243A CN 107013185 A CN107013185 A CN 107013185A
Authority
CN
China
Prior art keywords
central tube
base
packing
centrum
positioning centrum
Prior art date
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.)
Withdrawn
Application number
CN201610159243.9A
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Chinese (zh)
Inventor
张华�
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Jiage Technology Co Ltd
Original Assignee
Chengdu Jiage Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chengdu Jiage Technology Co Ltd filed Critical Chengdu Jiage Technology Co Ltd
Priority to CN201610159243.9A priority Critical patent/CN107013185A/en
Publication of CN107013185A publication Critical patent/CN107013185A/en
Withdrawn legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/10Sealing or packing boreholes or wells in the borehole
    • E21B33/13Methods or devices for cementing, for plugging holes, crevices, or the like
    • E21B33/134Bridging plugs

Abstract

The invention discloses a kind of NEW TYPE OF COMPOSITE bridging plug, including central tube, throw-out collar is arranged with successively from top to bottom on the excircle of central tube, upper positioning centrum, packing element, lower positioning centrum and spacer ring, spacer ring is fixedly connected with central tube, throw-out collar, upper positioning centrum, packing element and lower positioning centrum can along central tube axial movement, upper positioning centrum is circumferentially with multiple top bases, one end of top base is abutted with throw-out collar, lower positioning centrum is circumferentially with multiple bottom bases, one end of bottom base is abutted with spacer ring, ceramic card tile is equipped with the excircle of top base and bottom base;The NEW TYPE OF COMPOSITE bridging plug of the present invention, purpose of horizon is quickly sent to by cable or coiled tubing, carries out gunpowder or waterpower is setting, realize packing payzone or non-object layer, is reached change wellbore conditions, is realized packing purpose, reaches subsequent construction requirement.Quick milling, flowback effect can be realized after the completion of construction, operating efficiency is improved.

Description

A kind of NEW TYPE OF COMPOSITE bridging plug
Technical field
The invention belongs to oil exploration equipment technical field, and in particular to a kind of NEW TYPE OF COMPOSITE bridging plug.
Background technology
During oil and gas well testing, when meeting many series of strata stratum, the interlayer of each oil-gas-water layer has differences needs and divided Layer test, is layered the measures such as volume increase, now just needs to use closure layering tool.For a long time, domestic and international oil field is adopted extensively With the bridging plug of milling metal material can be bored as Oil/gas Well layer position separating device.The bridging plug of existing metal material is deposited after construction operation In easy card, the shortcomings of milling is difficult is bored, once there is accident in construction, is handled also fairly cumbersome.Particularly as used for inclined shaft, The technique such as the layering of horizontal well or the pressure break of section, acidifying, closure water, due to being influenceed by its special casing programme, this kind of well It is even more easily to occur the problems such as eccentric wear milling sleeve pipe, bit freezing, drilling cuttings return row's difficulty, and ask when boring except metal bridging plug Dealt with after topic than straight well complicated.
The content of the invention
Present invention aim to address above mentioned problem, there is provided a kind of rational in infrastructure, NEW TYPE OF COMPOSITE bridging plug that the milling time is short.
The technical scheme is that:A kind of NEW TYPE OF COMPOSITE bridging plug, including central tube and the solvable ball in central tube, in The inclined-plane of sealing surface can be formed with solvable ball by being provided with heart pipe;Be arranged with successively from top to bottom on the excircle of central tube throw-out collar, Upper positioning centrum, packing element, lower positioning centrum and spacer ring, spacer ring are fixedly connected with central tube, throw-out collar, upper positioning centrum, glue Cylinder and lower positioning centrum can along central tube axial movement, upper positioning centrum is circumferentially with multiple top bases, top base One end is abutted with throw-out collar, and lower positioning centrum is circumferentially with multiple bottom bases, and one end of bottom base is abutted with spacer ring, top base With ceramic card tile is equipped with the excircle of bottom base;Covered with protective case on the packing element excircle, one end of protective case Abutted with upper positioning centrum, the other end is abutted with lower positioning centrum.
Preferably, the surface of the ceramic card tile is provided with zigzag protuberant bar, and the protuberant bar is along the circumferentially disposed of central tube.
Preferably, the ceramic card tile is separately mounted on top base and bottom base by fixing screws.
Preferably, backing pin is additionally provided with the central tube, backing pin is located above solvable ball.
The beneficial effects of the invention are as follows:NEW TYPE OF COMPOSITE bridging plug provided by the present invention is new by this by cable or coiled tubing Type composite bridge plug is quickly sent to purpose of horizon, carries out gunpowder or waterpower is setting, realize packing payzone or non-object layer, reach Change wellbore conditions, realize packing purpose, reach subsequent construction requirement.Quick milling, the row of returning can be realized after the completion of construction Effect, improves operating efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the NEW TYPE OF COMPOSITE bridging plug of the present invention;
Fig. 2 is the schematic diagram that NEW TYPE OF COMPOSITE bridge plug seat of the invention is honored as a queen.
Description of reference numerals:1st, central tube;2nd, solvable ball;3rd, throw-out collar;4th, upper positioning centrum;5th, packing element;6th, it is lower fixed Position centrum;7th, spacer ring;8th, top base;9th, bottom base;10th, ceramic card tile;11st, wall cushion rubber is scraped;12nd, anti-rotation pin; 13rd, protective case;14th, sleeve pipe;15th, fixing screws;16th, backing pin.
Embodiment
The present invention is described further with specific embodiment below in conjunction with the accompanying drawings:
As shown in Figure 1 to Figure 2, from upper on NEW TYPE OF COMPOSITE bridging plug of the invention, including central tube 1, the excircle of central tube 1 Throw-out collar 3, upper positioning centrum 4, packing element 5, lower positioning centrum 6, spacer ring 7, spacer ring 7 and central tube 1 are down arranged with successively Be fixedly connected, throw-out collar 3, it is upper positioning centrum 4, packing element 5 and it is lower positioning centrum 6 can along central tube 1 axial movement, on Positioning centrum 4 is circumferentially with multiple top bases 8, and one end of top base 8 abuts with throw-out collar 3, and top base 8 can be along upper fixed The generatrix direction movement of position centrum 4;Lower positioning centrum 6 is circumferentially with multiple bottom bases 9, one end of bottom base 9 and spacer ring 7 are abutted, and bottom base 9 can be moved along the generatrix direction of lower positioning centrum 6.
After throw-out collar 3 is moved from left to right in Fig. 1 (moving from top to bottom in correspondence real work), packing element can be promoted Generatrix direction of the top base 8 of 5 both sides along upper positioning centrum 4 is moved, generatrix direction of the bottom base 9 along lower positioning centrum 6 It is mobile, compress packing element 5 after the upper positioning centrum 4 of the both sides of packing element 5 and the lower positioning stress of centrum 6, make the middle part of packing element 5 to Outer process, while top base 8 and bottom base 9 can be fixed with the inwall of the sleeve pipe 14 of underground, so as to realize that packing element 5 exists Setting in sleeve pipe 14, as shown in Figure 2.
Ceramic card tile 10 is equipped with the excircle of top base 8 and bottom base 9, ceramic card tile 10 passes through fixing screws 15 are separately mounted on top base 8 and bottom base 9, and the surface of ceramic card tile 10 is provided with zigzag protuberant bar, the projection Bar is circumferentially disposed along central tube 1, and protuberant bar causes when the top of ceramic card tile 10 is embedded in 14 inwall of sleeve pipe and covered The inwall of pipe 14 formation linear contact lay, increases stress point, fixed effect is more preferable.
It is arranged with the excircle of spacer ring 7 and scrapes wall cushion rubber 11, is scraped wall cushion rubber 11 and spacer ring 7 passes through anti-rotation pin 12 and center Pipe 1 is fixedly connected, and the external diameter for scraping wall cushion rubber 11 is equal to the internal diameter of sleeve pipe 14, and wall cushion rubber 11 is scraped during going into the well to be removed The sordid things such as the greasy dirt on the inwall of sleeve pipe 14, facilitate the setting of the NEW TYPE OF COMPOSITE bridging plug.
Covered with protective case 13 on the excircle of packing element 5, one end of protective case 13 is abutted with upper positioning centrum 4, and the other end is with Positioning centrum 6 abuts.Protective case 13 is deformed in extruding, is tightly encased the packing element 5 after deformation, is played and bear pressure and guarantor Packing element 5 is protected, packing element 5 is sealedly acted on.Protective case 13 is polytetrafluoroethylene (PTFE) material, while packing element 5 can be protected to exist It is not scratched in stress extruding, and plays pressure-bearing effect.
It is provided with to be provided with solvable ball 2 and backing pin 16, central tube 1 in central tube 1 and the inclined-plane of sealing surface can be formed with solvable ball 2, Backing pin 16 is located at the solvable top of ball 2, spacing for being carried out to solvable ball 2;Complete after seal pack, tripping in instrument is sprayed Sand perforation, so as to carry out staged fracturing, completes after pressure break, anti-flushing well is carried out, in the presence of discharge opeing is returned, for sealed Solvable ball 2 is gradually dissolved, it is achieved thereby that the full-bore of central tube 1, also achieves the big orifice of pit shaft, it is follow-up Production and construction provide it is convenient.
The NEW TYPE OF COMPOSITE bridging plug easily bores milling, and the chip ground off is gently small, is easier to go out, and can prevent bit freezing.It is particularly suitable for use in The operations such as inclined shaft, the separate stratum fracfturing of horizontal well, acidifying, closure water, overcome metal bridging plug and easily block, bore milling difficulty, bore milling The shortcomings of time, time-consuming.Wherein after packing element Expansion sealing, isolation wellbore fluid and pressure, packing payzone or non-can be reached Target zone, reaches change wellbore conditions, realizes packing purpose.
One of ordinary skill in the art will be appreciated that embodiment described here is to aid in reader and understands the present invention's Principle, it should be understood that protection scope of the present invention is not limited to such especially statement and embodiment.This area it is common Technical staff can make according to these technical inspirations disclosed by the invention various does not depart from the other various specific of essence of the invention Deformation and combination, these deformations and combination are still within the scope of the present invention.

Claims (4)

1. a kind of NEW TYPE OF COMPOSITE bridging plug, it is characterised in that:Solvable ball including central tube (1) and in central tube (1) (2) inclined-plane of sealing surface can be formed with solvable ball (2) by, being provided with central tube (1);On the excircle of central tube (1) from On be down arranged with throw-out collar (3), upper positioning centrum (4), packing element (5), lower positioning centrum (6) and spacer ring (7) successively, Spacer ring (7) is fixedly connected with central tube (1), throw-out collar (3), upper positioning centrum (4), packing element (5) and lower positioning centrum (6) can along central tube (1) axial movement, upper positioning centrum (4) is circumferentially with multiple top bases (8), upper base One end of seat (8) is abutted with throw-out collar (3), lower to position centrum (6) and be circumferentially with multiple bottom bases (9), bottom base (9) One end abutted with spacer ring (7), ceramic card tile (10) is equipped with the excircle of top base (8) and bottom base (9); Covered with protective case (13) on packing element (5) excircle, one end of protective case (13) is abutted with upper positioning centrum (4), The other end is abutted with lower positioning centrum (6).
2. NEW TYPE OF COMPOSITE bridging plug according to claim 1, it is characterised in that:The surface of the ceramic card tile (10) Provided with zigzag protuberant bar, the protuberant bar is circumferentially disposed along central tube (1).
3. NEW TYPE OF COMPOSITE bridging plug according to claim 1, it is characterised in that:The ceramic card tile (10) passes through solid Determine screw (15) to be separately mounted on top base (8) and bottom base (9).
4. NEW TYPE OF COMPOSITE bridging plug according to claim 1, it is characterised in that:Gear is additionally provided with the central tube (1) Sell (16), backing pin (16) is located above solvable ball (2).
CN201610159243.9A 2016-03-18 2016-03-18 A kind of NEW TYPE OF COMPOSITE bridging plug Withdrawn CN107013185A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610159243.9A CN107013185A (en) 2016-03-18 2016-03-18 A kind of NEW TYPE OF COMPOSITE bridging plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610159243.9A CN107013185A (en) 2016-03-18 2016-03-18 A kind of NEW TYPE OF COMPOSITE bridging plug

Publications (1)

Publication Number Publication Date
CN107013185A true CN107013185A (en) 2017-08-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610159243.9A Withdrawn CN107013185A (en) 2016-03-18 2016-03-18 A kind of NEW TYPE OF COMPOSITE bridging plug

Country Status (1)

Country Link
CN (1) CN107013185A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108412455A (en) * 2018-02-08 2018-08-17 江苏晶通石油技术有限公司 A kind of solvable bridge plug and application method
CN112855074A (en) * 2021-03-01 2021-05-28 大庆市亚盛油田技术开发有限公司 Mechanical temporary bridge plug

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108412455A (en) * 2018-02-08 2018-08-17 江苏晶通石油技术有限公司 A kind of solvable bridge plug and application method
CN112855074A (en) * 2021-03-01 2021-05-28 大庆市亚盛油田技术开发有限公司 Mechanical temporary bridge plug

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Application publication date: 20170804