CN207004477U - Solvable bridging plug staged fracturing tool - Google Patents
Solvable bridging plug staged fracturing tool Download PDFInfo
- Publication number
- CN207004477U CN207004477U CN201720615205.XU CN201720615205U CN207004477U CN 207004477 U CN207004477 U CN 207004477U CN 201720615205 U CN201720615205 U CN 201720615205U CN 207004477 U CN207004477 U CN 207004477U
- Authority
- CN
- China
- Prior art keywords
- bridging plug
- plug body
- shear pin
- snap
- retaining ring
- 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.)
- Expired - Fee Related
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Abstract
A kind of solvable bridging plug staged fracturing tool,Including bridging plug body,The cylindrical structural of perforate centered on described bridging plug body,The left end of bridging plug body is provided with startup shear pin,Start shear pin side on bridging plug body and be provided with the snap in snap seat,Positioning shear pin is provided between described snap seat and snap,The packing element in the glue tube base of both sides is provided with the middle part of bridging plug body,The outside of both sides glue tube base compresses and is provided with interior retaining ring and outer retaining ring successively on bridging plug body,Retaining ring is pressed in snap seat outside left side,The outer side compression of the outer retaining ring in right side is provided with upper cone on bridging plug body,Described upper cone is arranged on bridging plug body by surely following closely,The outer side compression of upper cone is provided with slips on bridging plug body,Bridging plug body right-hand member is provided with shear pin,The utility model bores the process for grinding bridging plug after reducing pressure break compared with prior art,Improve the yield that pressure break efficiency improves oil and natural gas,It can be promoted the use of on oil field.
Description
Technical field
The utility model belongs to exploits oil, gas and water from well；The method of soluble or solubilized material or slurry of mineral or
Equipment technical field, and in particular to solvable bridging plug staged fracturing tool.
Background technology
Casing window sidetracking well technology answers old well by implementing casing window sidetracking to old well, abandoned well, accident well
It is living, reach the recycling for recovering production capacity and scrapping resource.The popularization and application of casing sidetracking directional well drilling technology, improve and push away
The development of drilling technology has been moved, has turned into oil field saving and taps the latent power, improves the important means and main path of crude output.Current old well
Eye window sidetracking has been widely used in the exploration, exploitation, increasing the storage in oil field in terms of production, yet with all many originals
Cause, slim-hole orientation window sidetracking also has certain difficulty in construction, especially in side-drilling windowing technique, wellbore trajectory control
Many technical problems also be present in terms of system and the completion technique in later stage.
At present in oilfield exploitation procedure, perforating technology, hydraulic fracturing technology turn into general yield-increasing technology, but right
The transformation degree of oil reservoirs is low, perforation, pressure break scope and small scale, and the construction of individual well, which will be passed through, is repeated several times construction, and efficiency is low,
Face cost is high, it is impossible to reaches the requirement of volume increase, and the process for boring mill bridging plug is carried out after pressure break, can not effectively improve pressure break
Efficiency.
The content of the invention
Technical problem to be solved in the utility model is overcome the deficiencies in the prior art, there is provided it is a kind of it is reasonable in design,
Solvable bridging plug staged fracturing simple in construction, easy to operate, that ground can be discharged to as fracturing liquid is counter, effectively improves pressure break efficiency
Instrument.
Technical scheme is used by solving above-mentioned technical problem：Including bridging plug body, centered on described bridging plug body
The cylindrical structural of perforate, the left end of bridging plug body are provided with startup shear pin, and starting shear pin side on bridging plug body is provided with peace
Snap in snap seat, positioning shear pin is provided between described snap seat and snap, peace is provided with the middle part of bridging plug body
Packing element in the glue tube base of both sides, the outside of both sides glue tube base compresses and is provided with interior retaining ring and outer shield successively on bridging plug body
Ring, retaining ring is pressed in snap seat outside left side, and side compression is provided with upper cone, described epicone to the outer retaining ring in right side outside on bridging plug body
Body is arranged on bridging plug body by surely following closely, and side compression is provided with slips outside upper cone on bridging plug body, and bridging plug body right-hand member is set
It is equipped with shear pin.
Bridging plug body of the present utility model, start shear pin, snap, positioning shear pin, snap seat, outer retaining ring, interior retaining ring, packing element
Seat, upper cone, steady nail, slips, shear pin are made up of soluble magnesium aluminium alloy.
Packing element of the present utility model is packing element made of soluble rubber.
The solvable bridging plug staged fracturing tool of the utility model is made of magnesium alloy and soluble elastomeric material, therefore with
Electrochemical reaction occurs for pit shaft salting liquid, and 0~24 as a child starts to dissolve, and mush shape is thoroughly dissolved as after 7~10 days, with pressure
Split liquid and return and be discharged to ground, reduce the process that mill bridging plug is bored after pressure break compared with prior art, improve pressure break efficiency, extend oil
The service life of well, reduces construction cost, improves the yield of oil and natural gas, can be promoted the use of on oil field.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model one embodiment.
In figure：1st, bridging plug body；2nd, shear pin is started；3rd, snap；4th, shear pin is positioned；5th, snap seat；6th, outer retaining ring；7th, interior shield
Ring；8th, glue tube base；9th, packing element；10th, upper cone；11st, steady nail；12nd, slips；13rd, shear pin.
Embodiment
The utility model is further described with reference to the accompanying drawings and examples, but the utility model is not limited to these
Embodiment.
Embodiment 1
In Fig. 1, the solvable bridging plug staged fracturing tool of the present embodiment includes：
The cylindrical structural of perforate centered on bridging plug body 1, it is provided with the left end of bridging plug body 1 and starts shear pin 2, is started
Shear pin 2 when suppressing, could Cut Block offset nail, prevent setting in advance, start the side of shear pin 2 on bridging plug body 1 and be provided with
Snap 3 in snap seat 5, snap 3 and snap seat 5 ensure setting reliability, and will not unseal automatically, in snap
Positioning shear pin 4 is installed, for positioning shear pin 4 after preset pressure is reached, positioning shear pin 4 plays operation, prevents between seat 5 and snap 3
Pressure is unrestrictedly amplified, and the middle part of bridging plug body 1 is provided with the packing element 9 in both sides glue tube base 8, and packing element 9 is setting in expansion
Afterwards, sleeve pipe and lower layer position are blocked, the outside of both sides glue tube base 8 compresses successively on bridging plug body 1 is provided with interior retaining ring 7 and outer
Retaining ring 6, interior retaining ring 7 and outer retaining ring 6 prevent snap seat 5 and glue tube base from radial deformation occurs, and retaining ring 6 is pressed in snap seat outside left side
5, on bridging plug body 1 the outer 6 outer side compression of retaining ring in right side be provided with upper cone 10, upper cone 10 can make slips 12 in peripheral force
The lower expansion of effect and sleeve pipe grappling, upper cone 10 are installed on bridging plug body 1 by surely following closely 11, upper cone 10 on bridging plug body 1
Outer side compression is provided with slips 12, the rivet sleeve of slips 12, and the right-hand member of bridging plug body 1 is provided with shear pin 13, in order that pressure break is completed
Afterwards, electrochemical reaction occurs for the utility model and pit shaft salting liquid, the bridging plug body 1 of the present embodiment, start shear pin 2, snap 3,
Position shear pin 4, snap seat 5, outer retaining ring 6, interior retaining ring 7, glue tube base 8, upper cone 10, surely nail 11, slips 12, shear pin 13 is by solvable
Property magnesium alloy be made, packing element 9 is packing element made of soluble rubber, and 0~24 as a child starts to dissolve, after 7~10 days thoroughly
Mush shape is dissolved as, ground is discharged to as fracturing liquid returns, the process for grinding bridging plug is bored after reducing pressure break, improves pressure break efficiency.
The course of work of the present utility model is as follows：
The utility model disengages with perforating appliances, each section of pressure break is blocked, after the completion of pressure break, because the utility model is adopted
It is made of magnesium alloy and soluble elastomeric material, therefore electrochemical reaction occurs with pit shaft salting liquid, 0~24 as a child started
Dissolving, is thoroughly dissolved as mush shape after 7~10 days, ground is discharged to as fracturing liquid returns, and the work for grinding bridging plug is bored after reducing pressure break
Sequence, improve pressure break efficiency.
Claims (3)
1. a kind of solvable bridging plug staged fracturing tool, including bridging plug body, it is characterised in that：Opened centered on described bridging plug body
The cylindrical structural in hole, the left end of bridging plug body are provided with startup shear pin, and starting shear pin side on bridging plug body is provided with installation
Snap in snap seat, positioning shear pin is provided between described snap seat and snap, installation is provided with the middle part of bridging plug body
Packing element in the glue tube base of both sides, the outside of both sides glue tube base compresses and is provided with interior retaining ring and outer shield successively on bridging plug body
Ring, retaining ring is pressed in snap seat outside left side, and side compression is provided with upper cone, described epicone to the outer retaining ring in right side outside on bridging plug body
Body is arranged on bridging plug body by surely following closely, and side compression is provided with slips outside upper cone on bridging plug body, and bridging plug body right-hand member is set
It is equipped with shear pin.
2. solvable bridging plug staged fracturing tool according to claim 1, it is characterised in that：Described bridging plug body, start
Shear pin, snap, positioning shear pin, snap seat, outer retaining ring, interior retaining ring, glue tube base, upper cone, steady nail, slips, shear pin are by solubility
Magnesium alloy is made.
3. solvable bridging plug staged fracturing tool according to claim 1, it is characterised in that：Described packing element is soluble rubber
Packing element made of glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720615205.XU CN207004477U (en) | 2017-05-28 | 2017-05-28 | Solvable bridging plug staged fracturing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720615205.XU CN207004477U (en) | 2017-05-28 | 2017-05-28 | Solvable bridging plug staged fracturing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207004477U true CN207004477U (en) | 2018-02-13 |
Family
ID=61445516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720615205.XU Expired - Fee Related CN207004477U (en) | 2017-05-28 | 2017-05-28 | Solvable bridging plug staged fracturing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207004477U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868734A (en) * | 2018-04-24 | 2018-11-23 | 中国石油天然气股份有限公司 | Gas well solvable packer multiple fracturing completion integral partial pressure tubular column and method |
| CN110055047A (en) * | 2019-04-26 | 2019-07-26 | 天津市玛特瑞科技有限公司 | A kind of quick-dissolving agent and preparation method accelerating the dissolution of magnesium alloy completion tool |
-
2017
- 2017-05-28 CN CN201720615205.XU patent/CN207004477U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868734A (en) * | 2018-04-24 | 2018-11-23 | 中国石油天然气股份有限公司 | Gas well solvable packer multiple fracturing completion integral partial pressure tubular column and method |
| CN110055047A (en) * | 2019-04-26 | 2019-07-26 | 天津市玛特瑞科技有限公司 | A kind of quick-dissolving agent and preparation method accelerating the dissolution of magnesium alloy completion tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 Termination date: 20190528 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |