CN108843269A - A kind of easy assembling type combination packing element bridge plug - Google Patents
A kind of easy assembling type combination packing element bridge plug Download PDFInfo
- Publication number
- CN108843269A CN108843269A CN201810699932.8A CN201810699932A CN108843269A CN 108843269 A CN108843269 A CN 108843269A CN 201810699932 A CN201810699932 A CN 201810699932A CN 108843269 A CN108843269 A CN 108843269A
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- Prior art keywords
- sleeve
- packing element
- bridge plug
- wall
- limit sleeve
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- 238000012856 packing Methods 0.000 title claims abstract description 65
- 238000012545 processing Methods 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 240000002853 Nelumbo nucifera Species 0.000 claims description 20
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims description 20
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims description 20
- 229920001971 elastomer Polymers 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 12
- 229920000459 Nitrile rubber Polymers 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 238000012790 confirmation Methods 0.000 abstract description 3
- 238000004836 empirical method Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010306 acid treatment Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
- E21B33/1277—Packers; Plugs with inflatable sleeve characterised by the construction or fixation of the sleeve
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The present invention relates to oil field well technical field of tools, and disclose a kind of easy assembling type combination packing element bridge plug, including top connection, the bottom of top connection outer wall is connect with the screw top of limit sleeve inner cavity, the internal activity of top connection and limit sleeve is socketed with sliding sleeve, the outer wall of sliding sleeve and the junction for being located at top connection and limit sleeve are equipped with toroidal cavity, and one end of sliding sleeve is equipped with steel ball, and the external activity of limit sleeve is socketed with chovr body.The easy assembling type combines packing element bridge plug, by the way that pressure sensor is arranged in the access section of chovr body and limit sleeve, the pressure value between chovr body and limit sleeve is detected by pressure sensor and pressure value is transferred to central processing unit, successively pressure value judges the clamping firmness of chovr body and limit sleeve, the estimation mode for replacing traditional tonnage table to show, replace empirical method, can more scientific accurate confirmation chovr body and limit sleeve clamping it is whether firm, consequently facilitating efficiently carry out bridge plug salvage.
Description
Technical field
The present invention relates to oil field well technical field of tools, specially a kind of easy assembling type combines packing element bridge plug.
Background technique
Bridge plug is common a kind of downhole tool in oilfield process, can be carried out to certain layers of position of underground by bridge plug
Long-term or permanent closure, to reach relevant job requirements.The structure of bridge plug generally include to give up component, setting mechanism component,
Packing element component, anchor mechanism component and central tube, wherein component of giving up is connected to the upper end of central tube, setting mechanism component, glue
On central tube, bridge plug usually has two big functions for cartridge module and anchor mechanism assembly set：First is that being realized by packing element component
The sealing of oil jacket annulus；Second is that realizing anchoring of the oil pipe column on casing by anchor mechanism component.When underground is installed, by bridge
Plug decentralization sets packing element and slips could to complete bridge plug in underground to behind the predetermined position of underground by suppressing into central tube
Installation.
Bridge plug is divided into permanent type bridge plug and detachable bridge plug according to service life, wherein detachable bridge plug completes grease
After well separate stratum fracfturing, separate layer acid treatment, formation testing by layer construction, need to salvage bridge plug, the core technology of salvaging is to bridge plug
Deblocking, using specific purpose tool is salvaged, to giving up, part is reinstalled, then carries out hanged withdrawing to bridge plug, however, in practical life
It produces in operation, is difficult to be determined since whether the clamping of chovr body and limit sleeve to underground is firm, it can only be according to tonnage table
Show value and 2-3 tons of show value cataclysm of reference determine that bridge plug unseals, therefore often can generative center tube assembly and component of giving up
The case where disengaging, not only influences to salvage efficiency, and doing over again can also make troubles to salvaging process, and on the other hand, current salvaging is all
It is that the packing element after expansion is overcome with pipe friction resistance with mechanical force to carry out based on component and the central tube again splice grafting of giving up
Bridge plug is salvaged, and can not carry out off-load to the packing element after expansion.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of easy assembling types to combine packing element bridge plug, has the firm inspection of clamping
It surveys, the packing element quick relief after expansion, the advantages that structure is simple and easy to operate, solves due to the chovr body and limit to underground
Position set clamping it is whether firm is difficult to be determined, can only according to tonnage table show value and 2-3 tons of show value cataclysm of reference come
Determine bridge plug unseal, therefore often can generative center tube assembly and give up component be detached from the case where, not only influence salvage efficiency, do over again
It can also make troubles to salvaging process, on the other hand, current salvaging is all based on will give up component and center again splice grafting, with
Mechanical force overcomes the packing element after expansion and pipe friction resistance to carry out bridge plug salvaging, can not carry out off-load to the packing element after expansion
The problem of.
(2) technical solution
To realize the packing element quick relief after the firm detection of above-mentioned clamping, expansion and the simple and easy to operate mesh of structure
, the present invention provides the following technical solutions：A kind of easy assembling type combination packing element bridge plug, including top connection, the top connection outer wall
Bottom is connect with the screw top of limit sleeve inner cavity, and the internal activity of the top connection and limit sleeve is socketed with sliding sleeve, the cunning
The outer wall of set and the junction for being located at top connection and limit sleeve are equipped with toroidal cavity, and one end of the sliding sleeve is equipped with steel ball, described
The external activity of limit sleeve is socketed with chovr body, and the bottom of the sliding sleeve outer wall is equipped with flange, and the outer wall and limit sleeve of flange
Inner wall contact, the inner wall that the chovr body is located at flange is embedded with pressure sensor, one end of the sliding sleeve and upper center
The end thereof contacts of pipe, the lower part of the upper center tube are set as lower center tube, and the outer wall of the lower center tube offers sharp-crested card slot,
The internal activity of the sharp-crested card slot is socketed with unloading sleeve, and the inner wall fixing sleeve of the unloading sleeve is connected to sealing shroud pad, described close
The inside of big envelope pad and the external activity of lower center tube are socketed, and the external activity of the unloading sleeve is socketed with interior lotus pad, described interior
The external activity of lotus pad is socketed with packing element, and the external fixing sleeve that the unloading sleeve is located at interior lotus pad side is connected to hex nut.
Preferably, the output end of the pressure sensor is electrically connected with the input terminal of signal processor, the signal processing
The output end of device is electrically connected with the input terminal of central processing unit, the output end of the central processing unit and the input terminal electricity of display
Connection, the judgement comparison of the central processing unit is adjusted to be inputted by pressure condition.
Preferably, the top of the inner wall of the chovr body and pressure sensor is in same level, the pressure sensing
There are four the quantity of device is set, and four pressure sensors are distributed in the inner wall circular array of chovr body.
Preferably, the pressure input of the pressure condition input is defining when chovr body is clamped fastening with limit sleeve
Value, the value of defining are obtained by experiment and empirical data.
Preferably, the outside of the unloading sleeve sets that there are two big protrusion and two small protrusions, and four bulge clearances arrangements
On the periphery of unloading sleeve, the big protrusion of the unloading sleeve and small protrusion are circular section protrusion, and protrusion and small protrusion greatly
It joins end to end.
Preferably, the material of the interior lotus pad and packing element is respectively unexpansive rubber and expanded rubber, wherein unexpansive rubber
Glue is specially nitrile rubber.
Preferably, the unloading sleeve bevel edge reverse extending line in the sharp-crested card slot just intersects with the edge of hex nut.
Preferably, the material of the sealing sleeve gasket is identical material with the material of interior lotus pad, with a thickness of 1cm.
(3) beneficial effect
Compared with prior art, the present invention provides a kind of easy assembling types to combine packing element bridge plug, has following beneficial effect：
1, the easy assembling type combines packing element bridge plug, by the way that pressure sensor is arranged in the access section of chovr body and limit sleeve, leads to
Over-voltage force snesor detects the pressure value between chovr body and limit sleeve and pressure value is transferred to central processing unit, successively pressure
Value judges the clamping firmness of chovr body and limit sleeve, the estimation mode for replacing traditional tonnage table show replaces experience
Method, can more scientific accurate confirmation chovr body and limit sleeve clamping it is whether firm, consequently facilitating efficiently carry out bridge plug beat
Vatman makees.
2, the easy assembling type combines packing element bridge plug, by setting unloading sleeve and hex nut, is supplied by external impetus to hexagonal
Nut is turned, so that hex nut drives unloading sleeve to rotate in packing element, by the big protrusion and small protrusion outside unloading sleeve
The continuous internally inside of lotus pad and packing element is stirred, to carry out off-load to the expansive force of packing element and make packing element and tube wall
It loosens, so that the off-load to packing element is completed, convenient for taking out bridge plug.
3, the easy assembling type combines packing element bridge plug, by setting sealing shroud between the inner wall of unloading sleeve and the outer wall of lower center tube
Pad, packing element is in expansion process, by the extruding of outer pipe wall, and to generate between unloading sleeve, sealing sleeve gasket and lower center tube
It is close to attach state, so that being sealed between unloading sleeve and lower center tube, while packing element and outer pipe wall seal, and then realize
Sealing outside lower center tube between tubing wall, so that still not influence its in the case where possessing packing element unloading function original for bridge plug
The realization of function.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is unloading sleeve partial enlargement diagram of the present invention；
Fig. 3 is the cut away view of Fig. 2 of the present invention；
Fig. 4 is pressure sensor systems connection schematic diagram of the present invention；
Fig. 5 is enlarged diagram at the A of structure of the invention Fig. 1.
In figure：1, top connection；2, limit sleeve；3, sliding sleeve；4, toroidal cavity；5, steel ball；6, chovr body；7, flange；8, it presses
Force snesor；9, upper center tube；10, lower center tube；11, sharp-crested card slot；12, unloading sleeve；13, sleeve gasket is sealed；14, interior lotus pad；
15, packing element；16, hex nut；17, chamfering；18, signal processor；19, central processing unit；20, display；21, pressure condition
Input.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-5, a kind of easy assembling type combination packing element bridge plug, including top connection 1, the bottom of 1 outer wall of top connection and limit
The screw top connection of position 2 inner cavities of set, the internal activity of top connection 1 and limit sleeve 2 are socketed with sliding sleeve 3, the outer wall of sliding sleeve 3 and position
It is equipped with toroidal cavity 4 in the junction of top connection 1 and limit sleeve 2, one end of sliding sleeve 3 is equipped with steel ball 5, and the external of limit sleeve 2 lives
Dynamic to be socketed with chovr body 6, top connection 1, limit sleeve 2, sliding sleeve 3, toroidal cavity 4, steel ball 5 and chovr body 6 are disclosed
Bridge plug structure composition, between specifically details are not described herein again with work relationship for connection, the inner wall of chovr body 6 and pressure sensor 8
Top be in same level, there are four the quantity of pressure sensor 8 is set, and four pressure sensors 8 are in chovr body 6
Wall circular array distribution, by the interior wall circular well-distributed pressure sensor 8 in chovr body 6, so that four pressure sensors 8 will
Pressure value at chovr body 6 inner wall, four points is transferred to central processing unit 19, and the numerical value of four points must be made to be all larger than pressure
The input value of condition entry 21 can confirm the secured situation of clamping of chovr body 6 Yu limit sleeve 2, to prevent rotation stop junctor 6 and limit
The fastness uneven distribution of 2 annular clamping of set, the bottom of 3 outer wall of sliding sleeve is equipped with flange 7, and the outer wall of flange 7 and limit sleeve 2
Inner wall contact, the inner wall that chovr body 6 is located at flange 7 is embedded with pressure sensor 8, the output end and letter of pressure sensor 8
The input terminal electrical connection of number processor 18, the output end of signal processor 18 are electrically connected with the input terminal of central processing unit 19, in
The output end of central processor 19 is electrically connected with the input terminal of display 20, and the judgement comparison of central processing unit 19 is adjusted by pressure strip
21 input of part input, the pressure input of pressure condition input 21 are to define value when chovr body 6 is fastened with the clamping of limit sleeve 2,
The value of defining is obtained by experiment and empirical data, and the data that pressure sensor 8 detects are higher than the input value of pressure condition input 21,
Chovr body 6 and limit sleeve 2 be can determine whether to be clamped secured state, clamping that is on the contrary then judging chovr body 6 and limit sleeve 2 is in relaxation shape
State, one end of sliding sleeve 3 and the end thereof contacts of upper center tube 9, the lower part of upper center tube 9 is set as lower center tube 10, lower center tube 10
Outer wall offer sharp-crested card slot 11, the 12 bevel edge reverse extending line of unloading sleeve in sharp-crested card slot 11 just with hex nut 16
Edge intersection, convenient for when external interior screw socket tool is socketed in the outside of hex nut 16, along the bevel edge of unloading sleeve 12
Extended line slides to the outside of hex nut 16, is docked convenient for hex nut 16 with external tool, the inside of sharp-crested card slot 11
Movable sleeve is connected to unloading sleeve 12, and the outside of unloading sleeve 12 sets that there are two big protrusion and two small protrusions, and four bulge clearance cloth
Set on the periphery of unloading sleeve 12, the big protrusion of unloading sleeve 12 and small protrusion are circular section protrusion, and big protrusion with it is small convex
It rises and joins end to end, arranged by the big protrusion of unloading sleeve 12 and small bulge clearance, so that when being rotated to unloading sleeve 12, packing element
The appearance volume change of the different location discontinuity of 15 inner cavities, reciprocating rotation unloading sleeve more than 12 times can be to the progress off-load of packing element 15
Deblocking processing, the inner wall fixing sleeve of unloading sleeve 12 are connected to sealing shroud pad 13, seal sleeve gasket 13 inside and lower center tube 10 it is outer
Portion's pivot bush unit, the external activity of unloading sleeve 12 are socketed with interior lotus pad 14, seal the material of sleeve gasket 13 and the material of interior lotus pad 14
For identical material, with a thickness of 1cm, nitrile rubber has the characteristic of good oil resistant, water resistant, solvent resistant and anti-high pressure oil, energy
Enough after the expansion of packing element 15 squeezes, sealed to being realized between unloading sleeve 12 and lower center tube 10, the external activity set of interior lotus pad 14
It is connected to packing element 15, the material of interior lotus pad 14 and packing element 15 is respectively unexpansive rubber and expanded rubber, wherein unexpansive rubber has
Body is nitrile rubber, and the expanded rubber of packing element 15 is disclosed technical products, may expand several times after its water suction or oil suction
To decades of times, unexpansive rubber herein is to refer specifically to be widely used in traditional packing element to make differentiation with expanded rubber
Rubber, without referring to all unexpansive rubber, the external fixing sleeve that unloading sleeve 12 is located at 14 sides of interior lotus pad is connected to hexagonal spiral shell
Mother 16.
When work, according to the prior art to give up belonging to top connection 1, limit sleeve 2 and sliding sleeve 3 component and chovr body 6 and
Center tube assembly belonging to upper center tube 9 carries out splice grafting, so that generating extruding between the flange 7 at limit sleeve 2 and chovr body 6
Power, and detected by the pressure sensor of flange 78, while pressure data is transferred to signal processing by pressure sensor 8
Device 18, signal processor 18 is transferred to central processing unit 19 after pressure data is changed system, then is handled by central processing unit 19
Judge whether that the pressure value for being higher than 21 input of pressure condition input illustrates if being higher than the input value of pressure condition input 21 afterwards
Chovr body 6 and limit sleeve 2 are clamped securely, if illustrating chovr body 6 and limit sleeve 2 lower than the input value of pressure condition input 21
Clamping up to ideal firmness, does not need further to adjust, the off-load for packing element 15, by the incoming interior screw socket tool in outside to six
Angle nut 16 carries out screw socket clamping, is then rotated by screw socket tool in oil pressure actuated and hex nut 16 is driven to rotate, so that six
Angle nut 16 drives the rotation of unloading sleeve 12, drives interior lotus pad 14 in the inside of packing element 15 by the big protrusion and small protrusion of unloading sleeve 12
Constantly rotation, due to compression of the interior lotus pad 14 after the expansion of packing element 15, when the small protrusion of unloading sleeve 12 is rotated to former big
When raised position, due to there are the volume differences successively compressed, the inner wall that packing element 15 is located at herein will appear loosening, and reciprocating rotary is more
Outside air intervention can carry out off-load to packing element 15 and packing element 15 is loosened after secondary.
In conclusion the easy assembling type combines packing element bridge plug, by the way that pressure is arranged in the access section of chovr body 6 and limit sleeve 2
Sensor 8 detects the pressure value between chovr body 6 and limit sleeve 2 by pressure sensor 8 and pressure value is transferred to centre
Device 19 is managed, successively pressure value judges the clamping firmness of chovr body 6 Yu limit sleeve 2, replaces what tradition tonnage table showed to estimate
Meter mode, i.e., substitution empirical method, can more scientific accurate confirmation chovr body 6 and limit sleeve 2 clamping it is whether firm, thus just
In efficiently progress bridge plug salvage；By setting unloading sleeve 12 and hex nut 16, supplied by external impetus to hexagonal spiral shell
Mother 16 is turned, so that hex nut 16 drives unloading sleeve 12 to rotate in packing element 15, by the big protrusion outside unloading sleeve 12
It is stirred with the continuous internally inside of lotus pad 14 and packing element 15 of small protrusion, so that the expansive force to packing element 15 carries out off-load simultaneously
So that packing element 15 and tube wall loosen, so that the off-load to packing element 15 is completed, convenient for taking out bridge plug；Pass through the inner wall in unloading sleeve 12
Sealing sleeve gasket 13 is set between the outer wall of lower center tube 10, packing element 15 by the extruding of outer pipe wall, and makes in expansion process
Close attaching state is generated between unloading sleeve 12, sealing sleeve gasket 13 and lower center tube 10, so that unloading sleeve 12 and lower center
It seals, while packing element 15 and outer pipe wall seal, and then is realized between 10 outside of lower center tube and tubing wall between pipe 10
Sealing, so that bridge plug does not still influence the realization of its original function in the case where possessing packing element unloading function；It solves due to underground
Chovr body 6 and limit sleeve 2 clamping it is whether firm be difficult to be determined, can only be according to tonnage table show value and show value cataclysm
2-3 tons of reference come determine bridge plug unseal, therefore often can generative center tube assembly and give up component be detached from the case where, not only influence
Efficiency is salvaged, doing over again can also make troubles to salvaging process, and on the other hand, current salvaging, which is all based on, will give up component in
Heart pipe splice grafting again overcomes the packing element 15 after expansion and pipe friction resistance to carry out bridge plug salvaging with mechanical force, can not be to swollen
The problem of packing element 15 after swollen carries out off-load.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of easy assembling type combines packing element bridge plug, including top connection (1), it is characterised in that：The bottom of top connection (1) outer wall
It is connect with the screw top of limit sleeve (2) inner cavity, the internal activity of the top connection (1) and limit sleeve (2) is socketed with sliding sleeve
(3), the outer wall of the sliding sleeve (3) and it is located at the junction of top connection (1) and limit sleeve (2) equipped with toroidal cavity (4), the cunning
The one end for covering (3) is equipped with steel ball (5), and the external activity of the limit sleeve (2) is socketed with chovr body (6), sliding sleeve (3) outer wall
Bottom be equipped with flange (7), and the outer wall of flange (7) is contacted with the inner wall of limit sleeve (2), and the chovr body (6) is located at flange
(7) inner wall at is embedded with pressure sensor (8), one end of the sliding sleeve (3) and the end thereof contacts of upper center tube (9), described
The lower part of upper center tube (9) is set as lower center tube (10), and the outer wall of the lower center tube (10) offers sharp-crested card slot (11), institute
The internal activity for stating sharp-crested card slot (11) is socketed with unloading sleeve (12), and the inner wall fixing sleeve of the unloading sleeve (12) is connected to sealing shroud
It pads (13), the inside of sealing sleeve gasket (13) and the external activity of lower center tube (10) are socketed, outside the unloading sleeve (12)
Portion's movable sleeve is connected to interior lotus pad (14), and the external activity of the interior lotus pad (14) is socketed with packing element (15), the unloading sleeve (12)
External fixing sleeve positioned at interior lotus pad (14) side is connected to hex nut (16).
2. a kind of easy assembling type according to claim 1 combines packing element bridge plug, it is characterised in that：The pressure sensor (8)
Output end be electrically connected with the input terminal of signal processor (18), the output end and central processing unit of the signal processor (18)
(19) input terminal electrical connection, the output end of the central processing unit (19) is electrically connected with the input terminal of display (20), described
The judgement comparison of central processing unit (19) is adjusted by pressure condition input (21) input.
3. a kind of easy assembling type according to claim 1 combines packing element bridge plug, it is characterised in that：The chovr body (6) it is interior
The top of wall and pressure sensor (8) is in same level, there are four the quantity of the pressure sensor (8) is set, and four
Pressure sensor (8) is distributed in the inner wall circular array of chovr body (6).
4. a kind of easy assembling type according to claim 2 combines packing element bridge plug, it is characterised in that：The pressure condition input
(21) pressure input is to define value when chovr body (6) and limit sleeve (2) clamping fastens, and the value of defining is by experiment and experience
Data obtain.
5. a kind of easy assembling type according to claim 1 combines packing element bridge plug, it is characterised in that：Outside the unloading sleeve (12)
Portion sets that there are two big protrusion and two small protrusions, and four bulge clearances are arranged in the periphery of unloading sleeve (12), the unloading sleeve
(12) big protrusion and small protrusion is circular section protrusion, and big protrusion joins end to end with small protrusion.
6. a kind of easy assembling type according to claim 1 combines packing element bridge plug, it is characterised in that：The interior lotus pad (14) and glue
The material of cylinder (15) is respectively unexpansive rubber and expanded rubber, wherein unexpansive rubber is specially nitrile rubber.
7. a kind of easy assembling type according to claim 1 combines packing element bridge plug, it is characterised in that：In the sharp-crested card slot (11)
Unloading sleeve (12) bevel edge reverse extending line just intersect with the edge of hex nut (16).
8. a kind of easy assembling type according to claim 1 combines packing element bridge plug, it is characterised in that：Sealing sleeve gasket (13)
Material is identical material with the material of interior lotus pad (14), with a thickness of 1cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810699932.8A CN108843269B (en) | 2018-06-29 | 2018-06-29 | A kind of easy assembling type combination packing element bridge plug |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810699932.8A CN108843269B (en) | 2018-06-29 | 2018-06-29 | A kind of easy assembling type combination packing element bridge plug |
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| Publication Number | Publication Date |
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| CN108843269A true CN108843269A (en) | 2018-11-20 |
| CN108843269B CN108843269B (en) | 2019-05-03 |
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| CN201810699932.8A Active CN108843269B (en) | 2018-06-29 | 2018-06-29 | A kind of easy assembling type combination packing element bridge plug |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424995A (en) * | 2019-08-06 | 2019-11-08 | 安徽钢铮机电有限公司 | A kind of hollow grouting device and application method of multisection type slip casting |
| CN110630227A (en) * | 2019-10-22 | 2019-12-31 | 东营市瑞丰石油技术发展有限责任公司 | Running tool, layered oil production pipe column and layered oil production pipe column running method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IE801190L (en) * | 1979-06-11 | 1980-12-11 | Dow Chemical Co | Bridge plug tool |
| CN201330579Y (en) * | 2009-01-15 | 2009-10-21 | 孔宪春 | Mechanical type bridging plug |
| US20100263876A1 (en) * | 2009-04-21 | 2010-10-21 | Frazier W Lynn | Combination down hole tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110424995A (en) * | 2019-08-06 | 2019-11-08 | 安徽钢铮机电有限公司 | A kind of hollow grouting device and application method of multisection type slip casting |
| CN110630227A (en) * | 2019-10-22 | 2019-12-31 | 东营市瑞丰石油技术发展有限责任公司 | Running tool, layered oil production pipe column and layered oil production pipe column running method |
| CN110630227B (en) * | 2019-10-22 | 2024-05-03 | 东营市瑞丰石油技术发展有限责任公司 | Running tool, layered oil production string and layered oil production string running method |
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| CN108843269B (en) | 2019-05-03 |
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Effective date of registration: 20190425 Address after: 163000 No. 19 Changxin Street, Jeanhu Road Economic and Technological Development Zone, Daqing City, Heilongjiang Province Patentee after: DAQING DANNUO PETROLEUM TECHNOLOGY DEVELOPMENT CO., LTD. Address before: Room 103, Unit 2, Building 8, Tangren Center, Jeanhu Road District, Daqing City, Heilongjiang Province Patentee before: Men Yuqing |