CN106894787A - A kind of single deck tape-recorder watt big orifice bridging plug and its set method - Google Patents
A kind of single deck tape-recorder watt big orifice bridging plug and its set method Download PDFInfo
- Publication number
- CN106894787A CN106894787A CN201710127538.2A CN201710127538A CN106894787A CN 106894787 A CN106894787 A CN 106894787A CN 201710127538 A CN201710127538 A CN 201710127538A CN 106894787 A CN106894787 A CN 106894787A
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- China
- Prior art keywords
- bridging plug
- single deck
- deck tape
- central tube
- big orifice
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
- E21B33/134—Bridging plugs
Abstract
The present invention relates to a kind of oil drilling and extracting equipment, particularly a kind of single deck tape-recorder watt big orifice bridging plug, including top connection, unidirectional tooth entirety slips, central tube, packing element, cone and guide shoe, central tube is axially hollow structure, packing element is sheathed on center pipe outer wall, the bottom section of cone is taper, in wedging the space between unidirectional tooth entirety slips and central tube, the upper lumen of the central tube has the diameter-changing cavity for placing solvable ball, the internal diameter of diameter-changing cavity from top to bottom reduces, central tube lower end is provided with groove uniform at 4, the boss being engaged with aforementioned grooves at 4 circumferentially and inside the lower end of guide shoe is circumferentially equipped with inside unidirectional tooth entirety slips, solvable ball is dissolvable in water electrolyte solution.Also disclose foregoing bridging plug sets method.The present invention grinds without boring, and only need to inject electrolyte solution just can be completely dissolved dissolvable ball, and the big orifice for leaving bridging plug is used for subsequent production.
Description
Technical field
The present invention relates to a kind of oil drilling and extracting equipment, particularly a kind of single deck tape-recorder watt big orifice bridging plug and its method is set.
Background technology
Currently, the separate stratum fracfturing exploitation of unconventionaloil pool is mainly based upon the staged fracturing of composite bridging plug, but multiple
Conjunction bridging plug is set after the completion of perforating and fracturing, and the later stage needs disposable boring to grind, still time-consuming；Simultaneously with unconventionaloil pool exploitation
Depth increases, and particularly in ultradeep well or inclined shaft, the difficulty ground using continuous tubing drill is increasing, therefore urgent need will be developed
A kind of bridging plug that need not bore mill, for staged fracturing of horizontal well.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency, there is provided a kind of single deck tape-recorder watt big orifice bridging plug, ground without boring, only need note
Entering electrolyte solution just can be completely dissolved dissolvable ball, and the big orifice for leaving bridging plug is used for subsequent production.
To realize above-mentioned technical purpose, the scheme that the present invention is provided is：A kind of single deck tape-recorder watt big orifice bridging plug, including above connect
Head, unidirectional tooth entirety slips, central tube, packing element, cone and guide shoe, central tube is axially hollow structure, and packing element is sheathed on center
Pipe outer wall, the bottom section of cone is taper, in the space between the unidirectional tooth entirety slips of wedging and central tube, the central tube
Upper lumen there is the diameter-changing cavity for placing solvable ball, the internal diameter of diameter-changing cavity from top to bottom reduces, and the section of the diameter-changing cavity is in cone
The conical surface for 15 °~30 ° is spent, 71mm is not less than at inner diameter of centerpipe minimum, central tube lower end is provided with groove uniform at 4, single
To circumferentially and inside the lower end of guide shoe being circumferentially equipped with the boss that is engaged with aforementioned grooves at 4 inside tooth entirety slips,
Solvable ball is dissolvable in water electrolyte solution.
And, the solvable ball is polymerized by the thermoplasticity that almag, water-soluble di acid and dihydroxylic alcohols are polymerized
Thing is made.
And, with central tube using being threadedly coupled, top connection upper end is provided with wedge-shaped protrusion uniform at 4 for the top connection,
Uniform groove is adapted at wedge-shaped protrusion and central tube lower end 4, and top connection lower end is the conical surface that taper is 30 °~50 °.
And, the cone is sheathed on the outer wall of central tube by the first lock ring, and the guide shoe is arranged by the second lock ring
In the outer wall of central tube, the inside and outside wall of the first lock ring and the second lock ring is buttless thread structure, and outer wall thread pitch is more than
Buttless thread and center pipe outer wall buttless thread teeth directional are conversely, the first lock in inner thread pitch, the first lock ring and the second lock ring
Ring and the outer buttless thread of the second lock ring are with cone, guide shoe buttless thread teeth directional conversely, cone and guide shoe and center pipe outer wall sawtooth
Screw thread teeth directional is identical, and the inwall of the first lock ring and the second lock ring coordinates with central tube outer wall thread, and the first lock ring and second is locked
The outer wall of ring coordinates with the inner thread of cone and guide shoe respectively.
And, the cone is connected by the first startup pin with central tube, and cone has the first tightening pin with the first lock ring
Nail connection；The guide shoe has the second tightening pin to be connected with the second lock ring, the central tube lower end 4 at groove interval outside
Wall is provided with pin hole at 4, and pin hole is connected with guide shoe by the second startup pin.
And, the both ends external diameter of the packing element is less than middle part external diameter, and the outside at packing element both ends is arranged with packing element gear
Ring；Ring-like projection is provided with the inside of packing element both ends.
And, the two ends of the packing element are respectively provided with back band, and the back band is made up of inside and outside back band, pass through between inside and outside back band
Back band pin is connected.
And, round section joint ring is provided between the packing element and central tube, it is cased with holding on the round section joint ring and stays ring.
And, the unidirectional tooth entirety slips outer surface is provided with equally distributed stress concentration groove vertically；It is described unidirectional
Tooth entirety slips bottom surface is provided with one 5 °~10 ° of the conical surface.
The present invention also provides a kind of method that sets of use single deck tape-recorder watt big orifice bridge plugging Oil/gas Well, including following step
Suddenly.
Step one, the elastic pawl one end on setting tool is contacted with the guide shoe on single deck tape-recorder watt big orifice bridging plug, elasticity
Shear joint end contact on the other end and setting tool of ratchet.
Step 2, single deck tape-recorder watt big orifice bridging plug, end face and the single deck tape-recorder watt of setting sleeve are directed at by the setting sleeve in setting tool
The top connection of big orifice bridging plug is in contact, and is fixed the position of setting sleeve and single deck tape-recorder watt big orifice bridging plug by pull bar.
Step 3, single deck tape-recorder watt big orifice bridging plug is transferred to the precalculated position in sleeve pipe by cable or coiled tubing.
Step 4, starts setting tool, and setting sleeve pushes the top connection end face of single deck tape-recorder watt big orifice bridging plug, shear joint band
Cone, the first lock ring, the second lock ring, the back of the body on the guide shoe and center pipe outer wall of elastic pawl promotion single deck tape-recorder watt big orifice bridging plug
Circle, packing element baffle ring and packing element are up, the annular space of packing single deck tape-recorder watt big orifice bridging plug and sleeve pipe, and grappling single deck tape-recorder watt big orifice bridge
Plug, disconnection pull bar is fixedly connected with shear joint, setting tool is separated with single deck tape-recorder watt big orifice bridging plug.
Step 5, the setting tool that with single deck tape-recorder watt big orifice bridging plug will separate proposes ground, delivers solvable ball to single deck tape-recorder watt
In the diameter-changing cavity of top connection one end of big orifice bridging plug, completion is set, carry out pressing crack construction.
Step 6, after pressing crack construction, solvable ball voluntarily dissolves in the presence of formation fluid.
The beneficial effects of the present invention are：Ground without boring, only need to inject electrolyte solution just can be completely molten by dissolvable ball
Solution, the big orifice for leaving bridging plug is used for subsequent production；Latus rectum is big in bridging plug, meets the continuous oil pipe operation of general requirements；
It is applied widely when needing to bore mill bridging plug under special operation condition, it is also possible to bored and ground off.
Brief description of the drawings
Fig. 1 is big orifice bridging plug assembly figure.
Fig. 2 is bridging plug and setting tool connection diagram.
Fig. 3 is the structural representation of central tube.
Fig. 4 is the axial, cross-sectional view of unidirectional tooth entirety slips.
Fig. 5 is the longitudinal section view of unidirectional tooth entirety slips.
Fig. 6 is the axial, cross-sectional view of guide shoe.
Fig. 7 is the longitudinal section view of guide shoe.
Fig. 8 is the structural representation of top connection.
Fig. 9 is the structural representation of packing element.
Figure 10 is the structural representation of back band.
Wherein, 1, solvable ball, 2, top connection, the 3, first outer back band, the 4, first back band pin, back band in 5, first, 6,
One packing element baffle ring, 7, packing element, 8, round section joint ring, 9, hold and stay ring, the 10, second packing element baffle ring, back band in 11, second, 12, second back of the body
Circle pin, the 13, second outer back band, the 14, first tightening pin, the 15, first lock ring, the 16, cone, 17, first startup pin, 18,
Unidirectional tooth entirety slips, 19, guide shoe, the 20, second tightening pin, the 21, second lock ring, 22, second starts pin, and 23, central tube,
24th, setting sleeve, 25, elastic pawl, 26, shear joint, 27, shear pin, 28, pull bar, 29, diameter-changing cavity, 30, groove, 31, pin
Nail, 32, slips internal boss, 33, guide shoe internal boss, 34, wedge-shaped protrusion, 35, ring-like projection.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described.
The present embodiment provides a kind of single deck tape-recorder watt big orifice bridging plug, as shown in Fig. 1 ~ Fig. 2, including top connection 2, unidirectional tooth entirety
Slips 18, central tube 23, packing element 7, cone 16 and guide shoe 19, central tube 23 are axially hollow structure, and packing element 7 is sheathed on central tube
23 outer walls, the bottom section of cone 16 is taper, described in the space between the unidirectional tooth entirety slips 18 of wedging and central tube 23
The upper lumen of central tube 23 has the diameter-changing cavity 29 for placing solvable ball 1, as shown in figure 3, the internal diameter of diameter-changing cavity 29 is from top to bottom
Reduce, it is 15 °~30 ° of the conical surface that the section of the diameter-changing cavity 29 is tapered, and the minimum place of the internal diameter of central tube 23 is not less than 71mm, center
The lower end of pipe 23 is provided with groove 30 uniform at 4, as shown in Fig. 4 ~ Fig. 7, inside unidirectional tooth entirety slips 18 circumferentially and guide shoe 19
Lower end inside be circumferentially equipped with the boss being engaged with aforementioned grooves 30 at 4（Slips internal boss 32, guide shoe internal boss
33）, solvable ball 1 is dissolvable in water electrolyte solution.
The thermoplastic polymer system that the solvable ball 1 is polymerized by almag, water-soluble di acid and dihydroxylic alcohols
Into can pressure-resistant 50~100MPa, 80~177 DEG C of heatproof, and being dissolved by electrolyte solution.
When needing to bridging plug top payzone pressure break, pitching pumps solvable ball 1 to the diameter-changing cavity 29 on the top of central tube 23, close
Being honored as a queen carries out pressure break.After the completion of measure, certain density electrolyte solution is added in displacement fluid, solvable ball 1 will be certain
Time in dissolved, leave the big orifice of bridging plug for subsequent production.
Further, the top connection 2 is used with central tube 23 and is threadedly coupled, as shown in figure 8, the upper end of top connection 2 is provided with 4
The uniform wedge-shaped protrusion 34 in place, uniform groove 30 is adapted at wedge-shaped protrusion 34 and the lower end 4 of central tube 23, and effect is to bore mill bridge
During plug, four grooves 30 for not having the bottom of Zuan Mowan rear center pipe 23 with the preceding paragraph form wedging function, when can prevent from boring mill
A upper bridging plug spins, and cannot bore mill.The lower end of top connection 2 is the conical surface that taper is 30 °~50 °, with back band coordinate, make it is interior,
Outer back band is easy to strut.
Further, the cone 16 is sheathed on the outer wall of central tube 23 by the first lock ring 15, and the guide shoe 19 passes through
Second lock ring 21 is sheathed on the outer wall of central tube 23, and the inside and outside wall of the first lock ring 15 and the second lock ring 21 is buttless thread knot
Structure, and outer wall thread pitch is more than inner thread pitch, buttless thread and central tube 23 in the first lock ring 15 and the second lock ring 21
Outer wall buttless thread teeth directional is conversely, the first lock ring 15 and the outer buttless thread of the second lock ring 21 and cone 16, the buttless thread of guide shoe 19
Teeth directional conversely, cone 16 and guide shoe 19 are identical with the outer wall buttless thread teeth directional of central tube 23, the first lock ring 15 and the second lock ring 21
Inwall coordinate with the outer wall thread of central tube 23, the outer wall of the first lock ring 15 and the second lock ring 21 respectively with cone 16 and guide shoe
19 inner thread coordinates.
The outer wall thread that cone 16 matches with lock ring will not occur relative displacement when bridging plug sets generation axial movement, and
The internal thread that central tube 23 matches with lock ring can then occur unidirectional irreversible upstream displacement.Buttless thread and center on lock ring inwall
Buttless thread on the outer wall of pipe 23 is engaged, and lock ring will be locked on central tube 23, and holding pushes load prevents resilience.
Further, the cone 16 is connected by the first startup pin 17 with central tube 23, the lock ring of cone 16 and first
15 have the first tightening pin 14 to connect, and the first startup pin 17 is used to fix cone 16, and when shearing force reaches setting value, this
One startup pin 17 is cut, and cone 16 just can be moved in the axial direction；The lock ring 21 of the guide shoe 19 and second has the second tightening pin
Nail 20 is connected, the lower end of the central tube 23 4 at the interval outer wall of groove 30 be provided with pin hole 31 at 4, pin hole 31 with
Guide shoe 19 is connected by the second startup pin 22, and fashionable midway sets under preventing bridging plug.
Further, the both ends external diameter of the packing element 7 is less than middle part external diameter, as shown in figure 9, the both ends of packing element 7 is outer
Side is arranged with packing element baffle ring（First packing element baffle ring 6 and the second packing element baffle ring 10）, the first packing element baffle ring 6 and the second packing element baffle ring
10 are respectively sleeved in the small place of the two ends external diameter of packing element 7, for pushing down the two ends of packing element 7, better seal.The both ends of packing element 7 it is interior
Side is provided with ring-like raised 35, similar to round section joint ring structure, further center seal pipe 23 after being set for packing element 7.
Further, the two ends of the packing element 7 are respectively provided with back band, and as shown in Figure 10, the back band is made up of inside and outside back band
（The outer back band 3 of back band 5 and second in first, the outer back band 13 of back band 11 and second in second）, back band pin is passed through between inside and outside back band
Nail（First back band pin 4, the second back band pin 12）Connection.
Further, round section joint ring 8 is provided between the packing element 7 and central tube 23, is cased with holding on the round section joint ring 8 and is stayed ring
9.This holds and stays ring 9 that the gap of packing element 7 and central tube 23 is further sealed in 7 pressure-bearing of packing element with round section joint ring 8.
Further, unidirectional tooth entirety slips 18 outer surface is provided with equally distributed stress concentration groove vertically, really
Protect uniform force after slips rupture；Unidirectional tooth entirety slips 18 bottom surface is provided with one 5 °~10 ° of the conical surface, is easy to slips to break
Slid in and out after splitting.
Step one, the one end of elastic pawl 25 on setting tool is contacted with the guide shoe 19 on single deck tape-recorder watt big orifice bridging plug,
The end contact of shear joint 26 on the other end and setting tool of elastic pawl 25.
Step 2, single deck tape-recorder watt big orifice bridging plug, the end face and list of setting sleeve 24 are directed at by the setting sleeve 24 in setting tool
The top connection 2 of slips big orifice bridging plug is in contact, and is consolidated the position of setting sleeve 24 and single deck tape-recorder watt big orifice bridging plug by pull bar 28
It is fixed.
Step 3, single deck tape-recorder watt big orifice bridging plug is transferred to the precalculated position in sleeve pipe by cable or coiled tubing.
Step 4, starts setting tool, and setting sleeve 24 pushes the end face of top connection 2 of single deck tape-recorder watt big orifice bridging plug, and shearing connects
First 26 promote the cone 16, first on the guide shoe 19 and the outer wall of central tube 23 of single deck tape-recorder watt big orifice bridging plug to lock with elastic pawl 25
Ring 15, the second lock ring 21, back band, packing element baffle ring and packing element 7 are up, the annular space of packing single deck tape-recorder watt big orifice bridging plug and sleeve pipe, and
Grappling single deck tape-recorder watt big orifice bridging plug, disconnection pull bar 28 is fixedly connected with shear joint 26, makes setting tool logical greatly with single deck tape-recorder watt
Footpath bridging plug is separated.
Step 5, the setting tool that with single deck tape-recorder watt big orifice bridging plug will separate proposes ground, delivers solvable ball 1 to single deck tape-recorder watt
In the diameter-changing cavity 29 of one end of top connection 2 of big orifice bridging plug, completion is set, carry out pressing crack construction.
Step 6, after pressing crack construction, solvable ball 1 voluntarily dissolves in the presence of formation fluid.
Operation principle：After predetermined level is pumped into, cable igniting, cable setting tool transmitting thrust to setting sleeve 24
On, setting sleeve 24 props up the upper surface of top connection 2, while pull bar 28 is up with shear joint 26 by shear pin 27, shearing
Joint 26 cuts the second startup pin 22 and promotes guide shoe 19 up with elastic pawl 25, and guide shoe 19 drives the second lock ring 21, list
Simultaneously up to tooth entirety slips 18, unidirectional tooth entirety slips 18 promotes the cutting of 16 and first lock ring of cone 15 first to start pin
17 is up, in the presence of axial force, back band 11, the inside and outside back of the body in the second outer back band 13 and second of the up extruding bottom of cone 16
Circle is expanded outwardly upwards simultaneously, and the packing element baffle ring 10 of packing element 7 and second is simultaneously up under responsive to axial force, and with a little drum
Rise, while the outer back band 3 of back band 5 and first and the first packing element baffle ring 6 in the first of the extruding of packing element 7 bottom, above-mentioned part is simultaneously
Continue to extrude unidirectional tooth entirety slips 18, unidirectional tooth entirety slips 18 reaches unidirectional tooth entirety slips under the support of guide shoe 19
After 18 rupture force value, unidirectional tooth entirety slips 18 is displaced outwardly, and is engaged sleeve pipe, the blow-up of packing element 7, sealing sleeve pipe, while cone 16
The first lock ring 15, guide shoe 19 is driven to drive the second lock ring 21 to be locked on central tube 23, reach the shear pin 27 on pull bar 28
Force value after, setting tool is slipped out of the hand with bridging plug, completes to set.When needing to bridging plug top payzone pressure break, pitching pumping ball 1 is arrived
On the diameter-changing cavity 29 on the top of central tube 23, pressure break is carried out after sealing.After the completion of measure, added in displacement fluid certain density
Electrolyte solution, solvable ball 1 will dissolve within the regular hour, leave the big orifice of bridging plug for subsequent production.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvement or deformation can also be made, these are improved or deformation also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of single deck tape-recorder watt big orifice bridging plug, including top connection, unidirectional tooth entirety slips, central tube, packing element, cone and guide shoe,
Central tube is axially hollow structure, and packing element is sheathed on center pipe outer wall, and the bottom section of cone is taper, wedges unidirectional tooth entirety
In space between slips and central tube, it is characterised in that：The upper lumen of the central tube has the reducing for placing solvable ball
Chamber, the internal diameter of diameter-changing cavity from top to bottom reduces, and it is 15 °~30 ° of the conical surface that the section of the diameter-changing cavity is tapered, and inner diameter of centerpipe is most
Small place is not less than 71mm, and central tube lower end is provided with groove uniform at 4, inside unidirectional tooth entirety slips circumferentially and under guide shoe
End is internal to be circumferentially equipped with the boss being engaged with aforementioned grooves at 4, and solvable ball is dissolvable in water electrolyte solution.
2. a kind of single deck tape-recorder watt big orifice bridging plug according to claim 1, it is characterised in that：The solvable ball is closed by magnalium
The thermoplastic polymer that gold, water-soluble di acid and dihydroxylic alcohols are polymerized is made.
3. a kind of single deck tape-recorder watt big orifice bridging plug according to claim 1, it is characterised in that：The top connection is adopted with central tube
With threaded connection, top connection upper end is provided with wedge-shaped protrusion uniform at 4, uniform groove at wedge-shaped protrusion and central tube lower end 4
It is adapted, top connection lower end is the conical surface that taper is 30 °~50 °.
4. a kind of single deck tape-recorder watt big orifice bridging plug according to claim 1, it is characterised in that：The cone passes through the first lock ring
The outer wall of central tube is sheathed on, the guide shoe is sheathed on the outer wall of central tube, the first lock ring and the second lock ring by the second lock ring
Inside and outside wall be buttless thread structure, and outer wall thread pitch is more than inner thread pitch, in the first lock ring and the second lock ring
Buttless thread is with center pipe outer wall buttless thread teeth directional conversely, the first lock ring and the outer buttless thread of the second lock ring and cone, guide shoe
Buttless thread teeth directional conversely, cone and guide shoe are identical with center pipe outer wall buttless thread teeth directional, the first lock ring and the second lock ring
Inwall coordinates with central tube outer wall thread, the outer wall of the first lock ring and the second lock ring respectively with cone and the inner thread of guide shoe
Coordinate.
5. a kind of single deck tape-recorder watt big orifice bridging plug according to claim 4, it is characterised in that：The cone starts by first
Pin is connected with central tube, and cone has the first tightening pin to be connected with the first lock ring；The guide shoe and the second lock ring have second tight
Rationed marketing nail connection, the central tube lower end 4 at the interval outer wall of groove be provided with pin hole at 4, pin hole leads to guide shoe
Cross the second startup pin connection.
6. a kind of single deck tape-recorder watt big orifice bridging plug according to claim 1, it is characterised in that：The both ends external diameter of the packing element
Less than middle part external diameter, the outside at packing element both ends is arranged with packing element baffle ring；Ring-like projection is provided with the inside of packing element both ends.
7. a kind of single deck tape-recorder watt big orifice bridging plug according to claim 1, it is characterised in that：The two ends of the packing element are respectively provided with
Back band, the back band is made up of inside and outside back band, is connected by back band pin between inside and outside back band.
8. a kind of single deck tape-recorder watt big orifice bridging plug according to claim 1, it is characterised in that：Between the packing element and central tube
Round section joint ring is provided with, is cased with holding on the round section joint ring and is stayed ring.
9. a kind of single deck tape-recorder watt big orifice bridging plug according to claim 1, it is characterised in that：Outside the unidirectional tooth entirety slips
Surface is provided with equally distributed stress concentration groove vertically；The unidirectional tooth entirety slips bottom surface is provided with one 5 °~10 ° of cone
Face.
10. it is a kind of using as in claim 1 ~ 9 any single deck tape-recorder watt big orifice bridge plugging Oil/gas Well set method, including such as
Lower step：
Step one, the elastic pawl one end on setting tool is contacted with the guide shoe on single deck tape-recorder watt big orifice bridging plug, elastic pawl
The other end and setting tool on shear joint end contact；
Step 2, single deck tape-recorder watt big orifice bridging plug is directed at by the setting sleeve in setting tool, and the end face of setting sleeve is logical greatly with single deck tape-recorder watt
The top connection of footpath bridging plug is in contact, and is fixed the position of setting sleeve and single deck tape-recorder watt big orifice bridging plug by pull bar；
Step 3, single deck tape-recorder watt big orifice bridging plug is transferred to the precalculated position in sleeve pipe by cable or coiled tubing；
Step 4, starts setting tool, and setting sleeve pushes the top connection end face of single deck tape-recorder watt big orifice bridging plug, and shear joint is with bullet
Property ratchet promote single deck tape-recorder watt big orifice bridging plug guide shoe and center pipe outer wall on cone, the first lock ring, the second lock ring, back band,
Packing element baffle ring and packing element are up, the annular space of packing single deck tape-recorder watt big orifice bridging plug and sleeve pipe, and grappling single deck tape-recorder watt big orifice bridging plug, break
Being fixedly connected for pull bar and shear joint is opened, setting tool is separated with single deck tape-recorder watt big orifice bridging plug；
Step 5, the setting tool that with single deck tape-recorder watt big orifice bridging plug will separate proposes ground, delivers solvable ball logical greatly to single deck tape-recorder watt
In the diameter-changing cavity of top connection one end of footpath bridging plug, completion is set, carry out pressing crack construction；
Step 6, after pressing crack construction, solvable ball voluntarily dissolves in the presence of formation fluid.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710127538.2A CN106894787A (en) | 2017-03-06 | 2017-03-06 | A kind of single deck tape-recorder watt big orifice bridging plug and its set method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710127538.2A CN106894787A (en) | 2017-03-06 | 2017-03-06 | A kind of single deck tape-recorder watt big orifice bridging plug and its set method |
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| CN112682002A (en) * | 2020-12-30 | 2021-04-20 | 中石化石油工程技术服务有限公司 | All-metal soluble bridge plug |
| CN113833431A (en) * | 2020-06-23 | 2021-12-24 | 中国石油天然气股份有限公司 | Connecting device of setting tool |
| CN114016932A (en) * | 2021-11-05 | 2022-02-08 | 中煤科工集团西安研究院有限公司 | Cable disconnecting device, cable conveying assembly and timing recovery method |
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| CN116892378A (en) * | 2023-09-11 | 2023-10-17 | 大庆信辰油田技术服务有限公司 | Soluble bridge plug special for oil and gas well production increase |
| CN109505558B (en) * | 2018-08-14 | 2024-04-26 | 中国石油天然气集团有限公司 | Easy drilling bridge plug |
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| CN107255023A (en) * | 2017-08-18 | 2017-10-17 | 中国石油集团川庆钻探工程有限公司 | Exempt to bore bridging plug with the big orifice for setting function of giving up |
| CN107724995A (en) * | 2017-11-28 | 2018-02-23 | 西安石油大学 | A kind of mechanical-set half dissolving bridging device and its fracturing process |
| CN108104765A (en) * | 2018-02-09 | 2018-06-01 | 四机赛瓦石油钻采设备有限公司 | A kind of solvable bridge plug of single deck tape-recorder whole pottery |
| CN108716379A (en) * | 2018-07-25 | 2018-10-30 | 百勤能源科技（惠州）有限公司 | A kind of solvable bridge plug of big orifice |
| CN109505558B (en) * | 2018-08-14 | 2024-04-26 | 中国石油天然气集团有限公司 | Easy drilling bridge plug |
| CN109505558A (en) * | 2018-08-14 | 2019-03-22 | 中国石油集团西部钻探工程有限公司 | Easily bore bridge plug |
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| CN109267964A (en) * | 2018-08-31 | 2019-01-25 | 西安威尔格德能源技术有限公司 | A kind of metal variable diameter sealed soluble press-fracturing bridge plug |
| CN109267964B (en) * | 2018-08-31 | 2023-08-29 | 西安威尔格德能源技术有限公司 | Metal reducing sealing soluble fracturing 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 |
| CN109083616A (en) * | 2018-11-02 | 2018-12-25 | 陕西航天德林科技集团有限公司 | A kind of solvable bridge plug |
| CN109083616B (en) * | 2018-11-02 | 2024-01-12 | 陕西航天德林科技集团有限公司 | Soluble bridge plug |
| CN110067529A (en) * | 2019-05-24 | 2019-07-30 | 北京易联结科技发展有限公司 | A kind of solvable bridge plug of single deck tape-recorder watt |
| CN110185414A (en) * | 2019-07-05 | 2019-08-30 | 山东博赛特石油技术有限公司 | A kind of solvable bridge plug of outer expanding |
| CN110185414B (en) * | 2019-07-05 | 2024-03-19 | 山东博赛特石油技术有限公司 | External expansion type soluble bridge plug |
| CN115443368B (en) * | 2020-05-07 | 2024-01-23 | 贝克休斯油田作业有限责任公司 | Chemical injection system for well completion |
| CN115443368A (en) * | 2020-05-07 | 2022-12-06 | 贝克休斯油田作业有限责任公司 | Chemical injection system for completing a wellbore |
| CN113833431A (en) * | 2020-06-23 | 2021-12-24 | 中国石油天然气股份有限公司 | Connecting device of setting tool |
| CN112647891A (en) * | 2020-12-24 | 2021-04-13 | 中石化石油工程技术服务有限公司 | Full-soluble bridge plug |
| CN112682002B (en) * | 2020-12-30 | 2022-12-09 | 中石化石油工程技术服务有限公司 | All-metal soluble bridge plug |
| CN112682002A (en) * | 2020-12-30 | 2021-04-20 | 中石化石油工程技术服务有限公司 | All-metal soluble bridge plug |
| CN112576231A (en) * | 2021-02-24 | 2021-03-30 | 四川省威沃敦化工有限公司 | All-metal soluble fracturing sectionalizer |
| CN114016932B (en) * | 2021-11-05 | 2023-11-21 | 中煤科工集团西安研究院有限公司 | Cable disengaging device, cable conveying assembly and timing recovery method |
| CN114016932A (en) * | 2021-11-05 | 2022-02-08 | 中煤科工集团西安研究院有限公司 | Cable disconnecting device, cable conveying assembly and timing recovery method |
| CN116892378B (en) * | 2023-09-11 | 2023-12-19 | 大庆信辰油田技术服务有限公司 | Soluble bridge plug special for oil and gas well production increase |
| CN116892378A (en) * | 2023-09-11 | 2023-10-17 | 大庆信辰油田技术服务有限公司 | Soluble bridge plug special for oil and gas well production increase |
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Application publication date: 20170627 |