CN105443057B - Bearing torque formula Double-acting releasing tool - Google Patents
Bearing torque formula Double-acting releasing tool Download PDFInfo
- Publication number
- CN105443057B CN105443057B CN201510896790.0A CN201510896790A CN105443057B CN 105443057 B CN105443057 B CN 105443057B CN 201510896790 A CN201510896790 A CN 201510896790A CN 105443057 B CN105443057 B CN 105443057B
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- lower contact
- top connection
- wall
- releasing tool
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 239000000725 suspension Substances 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 210000003781 tooth socket Anatomy 0.000 claims description 25
- 238000003780 insertion Methods 0.000 claims description 19
- 230000037431 insertion Effects 0.000 claims description 19
- 238000005520 cutting process Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 abstract description 10
- 239000003129 oil well Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 238000010008 shearing Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 241000209094 Oryza Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000009850 completed effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 210000003739 neck Anatomy 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 210000000664 rectum Anatomy 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/08—Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
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)
- Earth Drilling (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The present invention provides a kind of bearing torque formula Double-acting releasing tool comprising：Top connection, inner wall are equipped with suspension step；Lower contact, sealing shroud are set to the lower part of the top connection, fixation are worn by the first shear screw between the lower contact and the top connection；Sliding sleeve, it, which is sealed, is arranged in the top connection and in the lower contact, the outer wall of the sliding sleeve is convexly equipped with step, the step is located at the top of the suspension step, the inner wall of the sliding sleeve is equipped with the sealing cone that card sets steel ball, the sliding sleeve is equipped with flowing hole in the top of the sealing cone, and fixation is worn by the second shear screw between the sliding sleeve and the lower contact.The present invention has mechanical and two kinds of modes of giving up of fluid pressure type simultaneously, simple in structure, and reliability is high, and it is strong to bear internal pressure capability.
Description
Technical field
The present invention relates to oil well technical field, especially a kind of releasing tool is specifically a kind of to be suitable for oil well pressure
It splits, recover the oil, the bearing torque formula Double-acting releasing tool of workover treatment.
Background technology
During oil well pressure break, oil recovery, well workover, completion practice, all kinds of releasing tools are often used, existing
Releasing tool is broadly divided into mechanical and two kinds of fluid pressure type by model split of giving up.
Being mainly characterized by by the way of rotation or upper lifting pipe post for existing mechanical releasing tool, makes on releasing tool
Shear pin between lower contact is cut, to complete action of giving up；The tool that shear pin is given up wherein is cut using rotation tubing string, is born
Power, to hold internal pressure capability larger, but cannot hold torque load, and complicated, and interior latus rectum is smaller；And it is cut using upper lifting pipe post
Follow closely the tool given up, structure is simpler, and interior latus rectum can be done larger, but shortcoming is, tubing string to hold internal pressure capability straight
It connects and is determined by shear pin shear strength, cause tubing string when work that cannot bear the interior pressure of 50MPa or more, the tubing string internal pressure during operation
When fluctuation, it be easy to cause malfunction of giving up.
Existing hydraulic releasing tool is mainly characterized by, and using pitching in tubing string, is set sliding sleeve, is then suppressed in tubing string
Pressure, sliding sleeve open switch of giving up, and so that tool is completed action of giving up, can bear the high internal pressure of 70MPa, and its shortcoming is structure
Complexity, of high cost, assembling difficulty is big, and it is very big that tool, which integrally bears power not, in the construction process to pressure, tripping in tool
Speed control require high, be easy to cause and give up in advance, reliability of giving up is not high.
Moreover, existing mechanical or fluid pressure type mode of giving up all is to use single method of giving up, once mistake of giving up
It loses, then can only replace releasing tool running string again, cumbersome, reliability is low.
In view of the above-mentioned problems of the prior art, the present inventor combines the design and use of related manufacturing field for many years
Experience is aided with too strong professional knowledge, is optimized to existing structure, provides a kind of bearing torque formula double acting and gives up work
Tool, to overcome drawbacks described above.
Invention content
The object of the present invention is to provide a kind of bearing torque formula Double-acting releasing tools, have mechanical and fluid pressure type two simultaneously
Mode of giving up is planted, simple in structure, reliability is high, and it is strong to bear internal pressure capability.
Following technical proposal can be used to realize in the above-mentioned purpose of the present invention：
The present invention provides a kind of bearing torque formula Double-acting releasing tool comprising：Top connection, inner wall are equipped with suspension step；
Lower contact, sealing shroud are set to the lower part of the top connection, pass through the first shearing spiral shell between the lower contact and the top connection
Nail wears fixation；It can seal and be arranged in the top connection and in the lower contact every the sliding sleeve of pressure, the outer wall of the sliding sleeve
It is convexly equipped with step, the step is located at the top of the suspension step, and the inner wall of the sliding sleeve is equipped with the sealed taper that card sets steel ball
Face, the sliding sleeve are equipped with flowing hole in the top of the sealing cone, are cut by second between the sliding sleeve and the lower contact
It cuts screw and wears fixation；The inner wall of the lower contact is equipped with limited step, and the limited step is located at the lower section of the sliding sleeve,
In the state that the second shear screw cutting and the relatively described lower contact of the sliding sleeve move down, the lower face of the sliding sleeve
Contact is on the limited step；The distance between the limited step and the sliding sleeve lower face are less than or equal to the sliding sleeve
Step and the distance between the suspension step.
In a preferred embodiment, the lower part outer wall of the top connection is along the circumferential direction equipped with multiple upper tooth sockets, described
The external wall of upper portion of lower contact is along the circumferential direction equipped with multiple lower tooth sockets, is formed with insertion section between the upper tooth socket two-by-two, and two
Be formed with lower insertion section between the two lower tooth sockets, the upper insertion site in the lower tooth socket, the lower insertion site in
In the upper tooth socket.
In a preferred embodiment, the inner wall of the lower contact be equipped with pressure-bearing step, the lower face of the top connection with
Between the pressure-bearing step formed pressure-bearing chamber, second shear screw cut and the relatively described lower contact of the sliding sleeve to
In the state of lower movement, the flowing hole is connected with the pressure-bearing chamber.
In a preferred embodiment, the outer wall of the top connection is recessed with sealed groove, is equipped in the sealed groove
Sealing ring.
In a preferred embodiment, the outer wall of the sliding sleeve is recessed with multiple sealed grooves, multiple sealed grooves
Inside it is respectively equipped with sealing ring.
In a preferred embodiment, the sealed groove of the sliding sleeve be four, the sealed groove of two sliding sleeves with
The inner wall of the top connection mutually reclines, and the sealed groove of two sliding sleeves and the inner wall of the lower contact mutually recline.
In a preferred embodiment, the upper end of the top connection is equipped with box thread, and the lower end of the lower contact is equipped with public affairs
Screw thread.
The characteristics of bearing torque formula Double-acting releasing tool of the present invention and advantage are：
1, there are two types of modes of giving up for present invention tool, and the mechanical mode of giving up that upper lifting pipe post breaks shear screw can be used,
The fluid pressure type that pitching in tubing string can also be used is given up mode, realizes that oil well is given up stable uncoupling, keeps the reliability given up big
It is big to improve；
2, the present invention is equipped with sliding sleeve in top connection and lower contact, while setting first is cut between top connection and lower contact
Screw is cut, and the second shear screw is set between lower contact and sliding sleeve, sliding sleeve is made to have the function of, every pressure, more existing skill can be born
The higher high internal pressure of art, preferably, the present invention can bear 70 megapascal (MPa) high internal pressure, the underground that can meet high working inner pressure is made
Industry requirement is made moreover, can be needed to individually adjust pulling force size when upper lifting is disconnected to give up according to operation with meeting different operating modes
Industry demand, it is applied widely；
3, the present invention is set by top connection, each tooth socket of lower contact and the bearing torque formula structure of each insertion section being mutually embedded
It sets, big load torque can be born, preferably, it can bear the torque load of 5800 Ns of rice (Nm), be suitable for more
The job requirements of hole condition.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the structural schematic diagram of bearing torque formula Double-acting releasing tool of the present invention；
Fig. 2 is schematic cross-sections of the A-A in Fig. 1 to cutting line；
Fig. 3 is structural schematic diagram when bearing torque formula Double-acting releasing tool of the present invention above carries uncoupling；
Structural schematic diagram when Fig. 4 is bearing torque formula Double-acting releasing tool pitching uncoupling of the present invention.
Drawing reference numeral explanation：
1 top connection, the upper tooth sockets of 1-1, insertion section on 1-1 ＇, the first cut grooves of 1-2,1-3 sealed grooves, 1-4 hang step,
2 lower contacts, tooth socket under 2-1, insertion section under 2-1 ＇, 2-2 fishing necks, the first screw holes of 2-3, the second screw holes of 2-4,2-5 limits
Step, 3 first shear screws, 4 sealing rings, 5 sealing rings, 6 sliding sleeves, 6-1 steps, 6-2 flowing holes, 6-3 sealing cones, 6-4 are close
Seal groove, the second cut grooves of 6-5,7 second shear screws, 8 steel balls, 9 pressure-bearing steps, 10 pressure-bearing chambers, H1 distances, H2 distances.
Specific implementation mode
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 describes, 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.
As shown in Figure 1, the present invention provides a kind of bearing torque formula Double-acting releasing tool comprising：Top connection 1, inner wall is set
There is suspension step 1-4；Lower contact 2, sealing shroud are set to the lower part of the top connection 1, the lower contact 2 and the top connection 1
Between fixation worn by the first shear screw 3；Sliding sleeve 6, sealing are arranged in the top connection 1 and in the lower contact 2,
The outer wall of the sliding sleeve 6 is convexly equipped with step 6-1, the step 6-1 and is located at the top of the suspension step 1-4, the sliding sleeve 6
Inner wall is equipped with the sealing cone 6-3 that card sets steel ball 8, and the sliding sleeve 6 is equipped with flowing hole 6-2 in the top of the sealing cone 6-3,
Fixation is worn by the second shear screw 7 between the sliding sleeve 6 and the lower contact 2.
Specifically, top connection 1 is internally provided with through-hole, the lower part outer wall of top connection 1 is radially recessed with the first cut groove 1-2,
The inside of lower contact 2 also is provided with through-hole, and is connected with the through-hole of top connection 1, and the top of lower contact 2 is radially provided with the first screw
The lower part of hole 2-3, lower contact 2 are radially provided with the second screw hole 2-4, the first screw hole 2-3 on the top of lower contact 2 and top connection
1 the first cut groove 1-2 is corresponding and wears fixation by the first shear screw 3, to bear between top connection 1 and lower contact 2
Pulling force, sliding sleeve 6 is cylindrical, and sliding sleeve 6 is arranged in the through-hole of top connection 1 and the through-hole of lower contact 2, enables the invention to bear
The sealing cone 6-3 of the high internal pressure of 70 megapascal (MPa), the setting of 6 inner wall of sliding sleeve is tapered from 1 one lateral lower contact of top connection, 2 sides,
To accept the steel ball 8 fallen, the outer wall of sliding sleeve 6 is radially recessed with the second cut groove 6-5, and the second cut groove 6-5 of sliding sleeve 6 is under
Second screw hole 2-4 of the lower part of connector 2 is corresponding and wears fixation by the second shear screw 7, to bear lower contact 2 and slide
Pulling force between set 6；
In one embodiment, the first cut groove 1-2 of top connection 1 and the second cut groove 6-5 of sliding sleeve 6 may respectively be along upper
The circumferencial direction of connector 1 and the spaced multiple grooves of the circumferencial direction of sliding sleeve 6, the first screw hole 2-3 of lower contact 2 and
Two screw hole 2-4 be also respectively along the circumferencial direction of top connection 1 and the spaced multiple through-holes of the circumferencial direction of sliding sleeve 6,
Quantity is identical as the quantity of the first cut groove 1-2 and the second cut groove 6-5 respectively, is worn respectively by multiple first shear screws 3
Set on multiple first screw hole 2-3 and the first corresponding cut groove 1-2, to bear cutting between top connection 1 and lower contact 2
Pulling force is cut, and pulling force size needed for uncoupling between top connection 1 and lower contact 2 is realized by adjusting the quantity of the first shear screw 3
Adjustment, meanwhile, be arranged in multiple second screw hole 2-4 and corresponding second respectively by multiple second shear screws 7
Cut groove 6-5, to bear the shearing strength between lower contact 2 and sliding sleeve 6, and by adjusting the quantity of the second shear screw 7 reality
Now between connector 2 and sliding sleeve 6 pulling force size needed for uncoupling adjustment；It is of course also possible to be had not according to job requirements selection
With the first shear screw 3 and the second shear screw 7 of anti-shearing force；
In another embodiment, the first cut groove 1-2 of top connection 1 and the second cut groove 6-5 of sliding sleeve 6 may respectively be edge
The annular groove of circumferencial direction setting, the first screw hole 2-3 and the second screw hole 2-4 of lower contact 2 are respectively along the circumferential direction
Spaced multiple through-holes, preferably, as shown in Figure 1, the first screw hole 2-3 is two and radial symmetric is arranged, the second spiral shell
Nail hole 2-4 is also that two and radial symmetric are arranged, make the first screw hole 2-3 and the first cut groove 1-2, the second screw hole 2-4 and
The alignment of second cut groove 6-5 is more convenient, and the installation between top connection 1, lower contact 2 and sliding sleeve 6 is easier.
Further, as shown in Fig. 2, the lower part outer wall of the top connection 1 is along the circumferential direction equipped with multiple upper tooth socket 1-1,
The external wall of upper portion of the lower contact 2 is along the circumferential direction equipped with multiple lower tooth socket 2-1, is formed between the upper tooth socket 1-1 two-by-two
Upper insertion section 1-1 ＇, are formed with lower insertion section 2-1 ＇ two-by-two between the lower tooth socket 2-1, the upper insertion section 1-1 ＇ are located at described
In lower tooth socket 2-1, the lower insertion section 2-1 ＇ are located in the upper tooth socket 1-1, and the bearing torque formula double acting of the present invention is made to give up work
Tool can bear the torque between top connection 1 and lower contact 2, especially suitable for needing the occasion of big load operation torque, preferably,
The present invention can bear the torque load of 5800 Ns of rice (Nm).
Further, the inner wall of the lower contact 2 is equipped with pressure-bearing step 9, the lower face of the top connection 1 and the pressure-bearing
Pressure-bearing chamber 10 is formed between step 9, is cut in second shear screw 7 and the relatively described lower contact 2 of the sliding sleeve 6 is downward
In the state of movement, the flowing hole 6-2 is connected with the pressure-bearing chamber 10, makes the fluid pressure in working string that can pass through
Flowing hole 6-2 is transmitted in pressure-bearing chamber 10, larger hydraulic coupling is generated between top connection 1 and lower contact 2, and transmission acts on
Make its cutting to the first shear screw 3, and realizes uncoupling between top connection 1 and lower contact 2.
Further, the inner wall of the lower contact 2 is located at the sliding sleeve equipped with limited step 2-5, the limited step 2-5
6 lower section, second shear screw 7 cut and the sliding sleeve 6 lower contact 2 moves down relatively in the state of, institute
The lower face contact of sliding sleeve 6 is stated on the limited step 2-5, moves down distance under action of hydraulic force to limit sliding sleeve 6, more
Further, the distance between the limited step 2-5 and 6 lower face of the sliding sleeve H2 are less than or equal to the platform of the sliding sleeve 6
The distance between rank 6-1 and the suspension step 1-4 H1.
Further, the outer wall of the top connection 1, which is recessed in sealed groove 1-3, the sealed groove 1-3, is equipped with sealing
Circle 5, to realize the sealing of top connection 1 and 2 contact position of lower contact, wherein the quantity of sealed groove 1-3 and sealing ring 5 can be right
It should be respectively set to multiple.The outer wall of the sliding sleeve 6 is recessed with multiple sealed groove 6-4, divides in multiple sealed groove 6-4
Not She You sealing ring 4, to realize the sealing of sliding sleeve 6 and top connection 1 and lower contact 2, preferably, the sealed groove of the sliding sleeve 6
6-4 is four, and the sealed groove 6-4 of two sliding sleeves 6 mutually reclines with the inner wall of the top connection 1, two sliding sleeves 6
Sealed groove 6-4 and the inner wall of the lower contact 2 mutually recline, and a sealing ring 4 is equipped in each sealed groove 6-4, equal to realize
Even sealing.
The bearing torque formula Double-acting releasing tool of the present invention when mounted, first installs sealing ring, then in each sealed groove
Sliding sleeve 6 is inserted into the through-hole of lower contact 2, then the lower part of top connection 1 is inserted into the through-hole of lower contact 2, and makes insertion section
1-1 ＇ are inserted into lower tooth socket 2-1, in lower insertion section 2-1 ＇ insertions in tooth socket 1-1, are then sheared in the first screw hole 2-3 and first
It is inserted into the first shear screw 3 in slot 1-2 to fix, and is inserted into the second shearing spiral shell in the second screw hole 2-4 and the second cut groove 6-5
Nail 7 is fixed, meanwhile, the upper end of the top connection 1 is equipped with box thread, can be connected with the working string above releasing tool, described
The lower end of lower contact 2 is equipped with male thread, can be connected with the power tool string below releasing tool, so completes installation.
The bearing torque formula Double-acting releasing tool of the present invention is mainly used for assisting oil well pressure break, oil recovery, well workover, completion etc.
Operation is connected with various downhole tools as auxiliary tool at work and transfers to shaft bottom together, when underground mining tool
When operation needs to transmit high torque, as shown in Fig. 2, tubing string can be rotated, by the tooth socket of top connection 1 and lower contact 2 with insert
The mutually embedded structure for entering portion, realizes the transmission of torque；When downhole tool needs uncoupling, ground installation upper lifting pipe can be passed through
Column breaks each shear screw of the present invention, to make bearing torque formula Double-acting releasing tool uncoupling, alternatively, passing through ground installation pair
Pitching is carried out in tubing string, and internal pressure is then beaten in tubing string, to make its uncoupling, is described as follows：
When downhole tool needs to give up, mechanical mode of giving up can be used, as shown in figure 3, above being carried by ground installation
Tubing string in operation pit shaft, upper lifting power is transmitted to by shaft column in the top connection 1 of the present invention, when the drawing of upper lifting pipe post
When power is more than the Shear power of the first shear screw 3, the first shear screw 3 can be cut, and the first shear screw 3 is cut
Afterwards, under gravity, lower contact 2 is moved down with sliding sleeve 6, top connection 1 under a stretching force in lower contact 2 and sliding sleeve 6 it
Between continue to move up, until the step 6-1 of sliding sleeve 6 is suspended on the suspension step 1-4 of top connection 1, then the pulling force of upper lifting pipe post is logical
Cross top connection 1, sliding sleeve 6 and act on the second shear screw 7, when pulling force be more than the second shear screw 7 Shear power when, second
Shear screw 7 is also cut, and top connection 1 and 2 last uncoupling of lower contact are completed action of giving up, then driven by upper lifting pipe post
Top connection 1 and sliding sleeve 6 move upwardly together, it is proposed oil well together；Wherein, the Shear power of the first shear screw 3 can be with
Equal to the Shear power of the second shear screw 7, the Shear power of certain first shear screw 3 can not also be equal to the second shearing spiral shell
The Shear power of nail 7, while according to operation needs, the Shear power of the first shear screw 3 and the second shear screw 7 can be adjusted
Become larger or become smaller, realizes and give up to meet the disconnected shear screw of lifting on different work operating mode lower tubular column；
When the use fluid pressure type mode of giving up, which is realized, gives up, as shown in figure 4, by ground installation, steel is put into tubing string
Ball 8, steel ball 8 finally enter sliding sleeve 6 and set on the sealing cone 6-3 of sliding sleeve 6, then, by the pump pressure equipment on ground, to
Internal pressure is beaten in working string, when internal pressure reaches certain value, steel ball 8 is applied to and can be cut more than second with the hydraulic coupling on sliding sleeve 6
The Shear power of screw 7 is cut, the second shear screw 7 can be cut, and after the second shear screw 7 is cut, sliding sleeve 6 is in hydraulic coupling
It continues in top connection 1 and lower contact 2 and moves down under effect, until the lower end of sliding sleeve 6 contradicts the limited step 2-5 to lower contact 2
On, at this point, the flowing hole 6-2 on sliding sleeve 6 is moved down into just at the pressure-bearing chamber 10 between top connection 1 and lower contact 2, and with hold
Press chamber 10 to be connected to, the fluid pressure in working string is transmitted to pressure-bearing chamber 10 by flowing hole 6-2, and top connection 1 with
Larger hydraulic coupling is generated between lower contact 2, when the hydraulic coupling is more than the Shear power of the first shear screw 3, the first shearing
Screw 3 is cut, and lower contact 2 is moved downwardly together with sliding sleeve 6, until the step 6-1 of sliding sleeve 6 is suspended to the suspension platform of top connection 1
At rank 1-4, sliding sleeve 6 stops falling, and lower contact 2 continues to fall, and top connection 1 and 2 uncoupling of lower contact realize action of giving up；Work as well
Operation is completed in lower tool, when needing downhole tool salvaging producing well, can into tubing string tripping in fishing tool, and by beating
Fishing combined tool hook is located at the fishing neck 2-2 of lower contact 2, you can it completes to salvage, it is easy to operate；
Certainly, in actual operation, the mechanical of shear screw can also be broken using upper lifting pipe post to throw with into tubing string
The fluid pressure type of ball is combined, common to realize operation of giving up, for example, break the first shear screw 3 by upper lifting pipe post, and pass through to
Steel ball 8 is put into tubing string, while injecting internal pressure, is realized the cutting of the second shear screw 7, is achieved in and gives up.
The characteristics of bearing torque formula Double-acting releasing tool of the present invention and advantage are：
1, there are two types of modes of giving up for present invention tool, and the mechanical mode of giving up that upper lifting pipe post breaks shear screw can be used,
The fluid pressure type that pitching in tubing string can also be used is given up mode, realizes that oil well is given up stable uncoupling, keeps the reliability given up big
It is big to improve；
2, the present invention is equipped with sliding sleeve 6 in top connection 1 and lower contact 2, while being arranged between top connection 1 and lower contact 2
First shear screw 3, and the second shear screw 7 is set between lower contact 2 and sliding sleeve 6, so that sliding sleeve 6 is had the function of every pressure, energy
It bears compared with the higher high internal pressure of the prior art, preferably, the present invention can bear 70 megapascal (MPa) high internal pressure, high work can be met
The underground work requirement of internal pressure, moreover, can be needed to individually adjust pulling force size when upper lifting is disconnected to give up according to operation, to meet
Different operating mode job requirements, it is applied widely；
3, the present invention is set by top connection 1, each tooth socket of lower contact 2 and the bearing torque formula structure of each insertion section being mutually embedded
It sets, big load torque can be born, preferably, it can bear the torque load of 5800 Ns of rice (Nm), be suitable for more
The job requirements of hole condition.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, has in any technical field
Usual skill, in the range of not departing from technical solution of the present invention, when the technology contents using the disclosure above make it is a little
The equivalent embodiment of equivalent variations is changed or is modified to, as long as being the content without departing from technical solution of the present invention, according to the present invention
Technical spirit to any simple modification, equivalent change and modification made by above example, still fall within the technology of the present invention side
In the range of case.
Claims (7)
1. a kind of bearing torque formula Double-acting releasing tool, which is characterized in that the bearing torque formula Double-acting releasing tool includes：
Top connection, inner wall are equipped with suspension step；
Lower contact, sealing shroud are set to the lower part of the top connection, are cut by first between the lower contact and the top connection
It cuts screw and wears fixation；
It can seal and be arranged in the top connection and in the lower contact, the outer wall of the sliding sleeve is convexly equipped with every the sliding sleeve of pressure
Step, the step are located at the top of the suspension step, and the inner wall of the sliding sleeve is equipped with the sealing cone that card sets steel ball, described
Sliding sleeve is equipped with flowing hole in the top of the sealing cone, is worn by the second shear screw between the sliding sleeve and the lower contact
If fixed；
The inner wall of the lower contact is equipped with limited step, and the limited step is located at the lower section of the sliding sleeve, is cut described second
Cut that screw is cut and in the state that the relatively described lower contact of the sliding sleeve moves down, the lower face contact of the sliding sleeve is described
On limited step；The distance between the limited step and the sliding sleeve lower face are less than or equal to step and the institute of the sliding sleeve
State the distance between suspension step.
2. bearing torque formula Double-acting releasing tool according to claim 1, which is characterized in that the lower part outer wall of the top connection
Multiple upper tooth sockets are along the circumferential direction equipped with, the external wall of upper portion of the lower contact is along the circumferential direction equipped with multiple lower tooth sockets, two-by-two institute
State and be formed with insertion section between tooth socket, be formed with lower insertion section between the lower tooth socket two-by-two, the upper insertion site in
In the lower tooth socket, the lower insertion site is in the upper tooth socket.
3. bearing torque formula Double-acting releasing tool according to claim 1, which is characterized in that the inner wall of the lower contact is equipped with
Pressure-bearing step forms pressure-bearing chamber, in second shear screw between the lower face of the top connection and the pressure-bearing step
In the state that cutting and the relatively described lower contact of the sliding sleeve move down, the flowing hole is connected with the pressure-bearing chamber.
4. bearing torque formula Double-acting releasing tool according to claim 1, which is characterized in that the outer wall of the top connection is recessed
There is sealed groove, sealing ring is equipped in the sealed groove.
5. bearing torque formula Double-acting releasing tool according to claim 1, which is characterized in that the outer wall of the sliding sleeve is recessed with
Multiple sealed grooves are respectively equipped with sealing ring in multiple sealed grooves.
6. bearing torque formula Double-acting releasing tool according to claim 5, which is characterized in that the sealed groove of the sliding sleeve is
Four, the sealed groove of two sliding sleeves and the inner wall of the top connection mutually recline, the sealed groove of two sliding sleeves with
The inner wall of the lower contact mutually reclines.
7. bearing torque formula Double-acting releasing tool according to claim 1, which is characterized in that the upper end of the top connection is equipped with
The lower end of box thread, the lower contact is equipped with male thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510896790.0A CN105443057B (en) | 2015-12-08 | 2015-12-08 | Bearing torque formula Double-acting releasing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510896790.0A CN105443057B (en) | 2015-12-08 | 2015-12-08 | Bearing torque formula Double-acting releasing tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105443057A CN105443057A (en) | 2016-03-30 |
| CN105443057B true CN105443057B (en) | 2018-10-16 |
Family
ID=55553638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510896790.0A Active CN105443057B (en) | 2015-12-08 | 2015-12-08 | Bearing torque formula Double-acting releasing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105443057B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649564A (en) * | 2016-03-31 | 2016-06-08 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Tool string for one-drill-trip window sidetrack drilling of open-hole horizontal well and technological method |
| CN107288563B (en) * | 2016-03-31 | 2023-04-25 | 中国石油天然气股份有限公司 | Releasing tool |
| CN106545306B (en) * | 2016-10-28 | 2019-04-02 | 中国石油化工股份有限公司 | A kind of machine liquid one dropper |
| CN108222854B (en) * | 2016-12-21 | 2019-06-11 | 中国石油天然气股份有限公司 | Stress joint |
| CN107269241A (en) * | 2017-07-12 | 2017-10-20 | 天津盛鑫华瑞石油技术有限公司 | Can guide type hydraulic releasing tool |
| CN109138857B (en) * | 2018-10-17 | 2024-08-20 | 中国石油化工股份有限公司 | Hydraulic micro-rotation safety joint for downhole tubular column |
| CN109098678B (en) * | 2018-10-19 | 2024-01-26 | 中石化江汉石油工程有限公司 | Releasing nipple for horizontal well conveying tractor perforating tool |
| CN114439381A (en) * | 2020-11-06 | 2022-05-06 | 中国石油化工股份有限公司 | Releasing device and perforating pipe string comprising same |
| CN115075758A (en) * | 2021-03-10 | 2022-09-20 | 中国石油化工股份有限公司 | Hydraulic composite releasing device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3948322A (en) * | 1975-04-23 | 1976-04-06 | Halliburton Company | Multiple stage cementing tool with inflation packer and methods of use |
| CN101871332A (en) * | 2010-07-02 | 2010-10-27 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Multi-way releasing device |
| CN201778707U (en) * | 2010-08-12 | 2011-03-30 | 中国石油天然气股份有限公司 | Dual-functional safety releasing gadget capable of being plugged into butt joint |
| CN102926694A (en) * | 2012-12-03 | 2013-02-13 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Mechanical releasing device for coiled-tubing fracturing |
| CN103912229A (en) * | 2014-04-01 | 2014-07-09 | 四机赛瓦石油钻采设备有限公司 | Coiled tubing hydraulic releasing device |
| CN204532187U (en) * | 2015-04-21 | 2015-08-05 | 中国石油天然气集团公司 | Hydraulic shear pin completion tubular column running tool |
| CN105003227A (en) * | 2015-08-03 | 2015-10-28 | 中国石油集团川庆钻探工程有限公司 | Separable hydraulic sliding sleeve for oil-gas well |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8066059B2 (en) * | 2005-03-12 | 2011-11-29 | Thru Tubing Solutions, Inc. | Methods and devices for one trip plugging and perforating of oil and gas wells |
-
2015
- 2015-12-08 CN CN201510896790.0A patent/CN105443057B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3948322A (en) * | 1975-04-23 | 1976-04-06 | Halliburton Company | Multiple stage cementing tool with inflation packer and methods of use |
| CN101871332A (en) * | 2010-07-02 | 2010-10-27 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Multi-way releasing device |
| CN201778707U (en) * | 2010-08-12 | 2011-03-30 | 中国石油天然气股份有限公司 | Dual-functional safety releasing gadget capable of being plugged into butt joint |
| CN102926694A (en) * | 2012-12-03 | 2013-02-13 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Mechanical releasing device for coiled-tubing fracturing |
| CN103912229A (en) * | 2014-04-01 | 2014-07-09 | 四机赛瓦石油钻采设备有限公司 | Coiled tubing hydraulic releasing device |
| CN204532187U (en) * | 2015-04-21 | 2015-08-05 | 中国石油天然气集团公司 | Hydraulic shear pin completion tubular column running tool |
| CN105003227A (en) * | 2015-08-03 | 2015-10-28 | 中国石油集团川庆钻探工程有限公司 | Separable hydraulic sliding sleeve for oil-gas well |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105443057A (en) | 2016-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105443057B (en) | Bearing torque formula Double-acting releasing tool | |
| CN209228337U (en) | A kind of dissolvable bridge plug | |
| CA2760149C (en) | Shearing mechanisms for downhole tools | |
| CN101906946B (en) | Hydraulic expansion-type rotary liner hanger | |
| CN210598918U (en) | Soluble bridge plug beneficial to quick dissolution | |
| EA034062B1 (en) | Balanced thread form and tubulars employing the same | |
| CN105888639A (en) | Feeding-controlling full-bore sliding sleeve sectional fracturing tube column | |
| CN109138918A (en) | Anchoring type full-soluble fracturing ball seat and use method thereof | |
| AU2012272305A1 (en) | Sleeve fracturing assembly, device using the same and method for using the same | |
| US20140060854A1 (en) | Hydraulic Disconnect Apparatus and Method of Use | |
| CN206707664U (en) | A kind of screw rod hydraulic returnable fishing tool | |
| CN206972216U (en) | The more cluster full-bore fracturing sliding bushs of ball-throwing type | |
| CN110219587B (en) | Rotary driving system of underground torque self-balancing cabled drilling tool | |
| CN107542422A (en) | The milling method and combined type junk mill and application method of different hole diameters | |
| CN203347718U (en) | Running tool for hydraulic packer | |
| CN203547574U (en) | Safety joint of sliding sleeve | |
| CN203022674U (en) | Die tap for salvaging tripping drill pipe under shaft | |
| CN203796187U (en) | DSHT double-shouldered high torque drill pipe connector | |
| CN209067164U (en) | Anchoring type full-soluble fracturing ball seat | |
| CN108301789B (en) | Casing pulling device and casing pulling method | |
| CN204082062U (en) | A kind of barefoot laterally drilling whipstock hanger | |
| CN207568531U (en) | A kind of length adjustable breaks de- sucker-rod fishing tool | |
| CN202170760U (en) | Downhole hydraulic safety connector | |
| CN205532417U (en) | Releasing tool | |
| CN205908282U (en) | Dissolve bridging plug entirely |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |