CN104533335B - Integral type oil and gas reservoir protects instrument assembly - Google Patents
Integral type oil and gas reservoir protects instrument assembly Download PDFInfo
- Publication number
- CN104533335B CN104533335B CN201410784832.7A CN201410784832A CN104533335B CN 104533335 B CN104533335 B CN 104533335B CN 201410784832 A CN201410784832 A CN 201410784832A CN 104533335 B CN104533335 B CN 104533335B
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- China
- Prior art keywords
- running tool
- fastening means
- packer
- ring
- central tube
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- 230000015572 biosynthetic process Effects 0.000 claims abstract description 42
- 238000002955 isolation Methods 0.000 claims abstract description 42
- 210000002445 nipple Anatomy 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims description 46
- 210000000078 claw Anatomy 0.000 claims description 36
- 238000007789 sealing Methods 0.000 claims description 23
- 238000013461 design Methods 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 13
- 238000012856 packing Methods 0.000 claims description 11
- 210000004907 gland Anatomy 0.000 claims description 10
- 239000000725 suspension Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 239000004576 sand Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 8
- 239000012530 fluid Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010008 shearing Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012546 transfer 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
- E21B33/126—Packers; Plugs with fluid-pressure-operated elastic cup or skirt
- E21B33/1265—Packers; Plugs with fluid-pressure-operated elastic cup or skirt with mechanical slips
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
- E21B33/1295—Packers; Plugs with mechanical slips for hooking into the casing actuated by fluid pressure
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
-
- 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
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/04—Ball valves
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)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses a kind of integral type oil and gas reservoir protects instrument assembly, its component parts to include seating nipple, running tool, formation isolation valves, fastening means, hanging packer and switching tools；Described seating nipple, formation isolation valves, fastening means and hanging packer are integrated with being threadedly coupled, described running tool is arranged in described seating nipple and through described formation isolation valves, the switching tools described in the lower end threaded connection of the running tool.It is an advantage of the invention that：Can be with the function of slipping out of the hand of entering and realize running tool, formation isolation valves and fastening means under sand control pipe one time；Can reduce completion, during well workover completion fluid leakage, so as to protect oil and gas reservoir not to be contaminated；Operation actual effect can be improved, is reduced the difficulty that completion cost and later stage well workover are processed, and is prevented the generation of the accidents such as blowout, well kick；The replacing of the hanging packer and formation isolation valves when being easy to keep in repair.
Description
Technical field
The present invention relates to oil field development production technical field, more particularly, it relates to a kind of be used for oil field development
The oil and gas reservoir protection instrument assembly of production.
Background technology
With the development of Offshore Oil Industry, the safety of the operation timeliness, operating cost and operation of oil field development production
Property increasingly become key issue, especially during completion and workover treatment, oil and gas reservoir protection instrument play of crucial importance
Effect.
During completion and workover treatment, in order to prevent the generation of the phenomenons such as blowout, well kick, needs are constantly into pit shaft
Completion fluid is poured into, if leak-proof measure is improper, not only completion fluid can pollute oil and gas reservoir, but also can increase completion cost；In addition,
If the density of completion fluid and the amount of pouring into are not enough, Oil/gas Well kill-job is failed, it is also possible to which well kick, or even blowout occur.Oil and gas reservoir is protected
The effect of nurse's tool, exactly prevents oil and gas reservoir from polluting and preventing the generation of blowout by the effect of its stratum safety valve.
At present, the oil-gas reservoir protection technology of international mainstream relative maturity, but due to oil and gas reservoir protection work used
Tool is the bottom for connecting hanging packer, so, once reservoir protection defective valve, just must be together with hanging packer and its underpart
Tubing string all rise, therefore, the later stage processes considerably complicated；Oil and gas reservoir protection instrument used by the country then many with sleeve type and
Based on simple flap valve, although have begun to recent years develop ball-type oil and gas reservoir protection instrument, but its security and actual effect
Poor, and the difficulty that later stage well workover is processed is also very big.So far, also do not find to be installed on oil and gas reservoir protection instrument
Hanging packer top and carry out the later stage process when motionless bottom tubing string be only individually replaced oil and gas reservoir protect instrument technical side
Case.
Content of the invention
The purpose of the present invention is exactly to solve the problems of above existing oil and gas reservoir protection instrument, and provides for this
A kind of together can enter down with sand control pipe, there is two way seal function and the integral type comprising hanging packer and formation isolation valves
Oil and gas reservoir protects instrument assembly.
The technical scheme is that：
A kind of integral type oil and gas reservoir protects instrument assembly, including seating nipple, also includes concentric with described seating nipple
The running tool of installation, formation isolation valves, fastening means, hanging packer and switching tools；Described seating nipple, stratum every
It is linked in sequence by screw thread from valve, fastening means and hanging packer and is integrated, described running tool is arranged on described
In seating nipple and through described formation isolation valves, the switching tools described in the lower end threaded connection of the running tool；
Described running tool, including running tool central tube, the upper end of the running tool central tube is provided with screw thread
Connection and the running tool top connection that is fixed by anti-rotation shear pin, the lower end of the running tool central tube is provided with
Threaded connection and the running tool lower contact that is fixed by fixing pin, are provided with the middle part of the running tool central tube and are sent
Enter tooling sleeve, on described running tool bushing, be provided with the slide block of fixing pin installation；Connect on the running tool
Running tool spring is provided between head and the running tool bushing, the outside of the running tool spring is provided with positioned at institute
The running tool overcoat of running tool top connection lower end is stated, feeding work between described slide block and running tool lower contact, is provided with
Tool elastic claw, is provided with running tool piston bush on the inside of described running tool elastic claw, described running tool piston bush leads to
Cross the shear pin of its upper end and its fixing pin of lower end fix with described running tool central tube and with shop bolt and
Lock ring is positioned；The piston of piston fixing pin installation is provided with described running tool piston bush；
Described formation isolation valves, including the ball valve that fixes on ball seat and by gland, the upper end of the ball valve
It is provided with the connected power transmission set of power transmission pin；The upper end of the power transmission set connects isolating valve elasticity by adapter sleeve
Pawl, the lower end of the power transmission set are bumped into the internal diameter of the gland, and the inner side of the power transmission set is provided with upper sleeve gasket, the power transmission
Isolating valve overcoat is provided with the outside of set, is set between the high spot on the outside of the inner side half the circumference of the sleeve where it joins the shoulder and the upper sleeve gasket of the power transmission set
It is equipped with spring；The upper end of the isolating valve elastic claw connects isolating valve top connection by force transmission joint；The lower end of the ball valve
The lower sleeve gasket for being bumped into the ball seat, the lower end connection isolating valve lower contact of the lower sleeve gasket, the lower sleeve gasket are installed
Outside half the circumference of the sleeve where it joins the shoulder and the isolating valve lower contact between be provided with lower spring；
Described fastening means, including heart axle, the top of the heart axle is provided with fastening means top connection, the heart axle
Middle part is provided with the spacing ring and fastening means elastic claw of spline installation, and the bottom of the heart axle is provided with fastening means
Joint；The outer tube that fixes with shear pin is provided with the outside of the fastening means top connection, and the top of the outer tube is provided with
Baffle ring, the lower end of the outer tube are set to A petal designs；The fastening means elastic claw is internally provided with by shear pin
The support ring that fixes with the heart axle, the lower end of the fastening means elastic claw are provided with left-handed foreign side's button；The fastening means
Guide shoe is installed in the bottom of lower contact, is provided with module sealing between the shoulder and the guide shoe of the fastening means lower contact；
Described hanging packer, including packer central tube, the threaded upper ends connection of the packer central tube and institute
Left-handed interior side's button that left-handed foreign side's button in fastening means mutually agrees with is stated, the bottom of left-handed interior side's button is provided with and described envelope
Every the packer piston bush of device central tube threaded connection, the external screw-thread connection gland of left-handed interior side's button, described packing
Packer piston is fixed with shear pin in device piston bush, is set between described packer piston and described packer central tube
Packer lock ring is equipped with, described packer piston order installs rule ring, packing element and lower rule ring；Under the lower rule ring
Portion is threadedly coupled upper cone, and the slips cage that bushing setting is fixed with shear pin in described epicone body, in described slips cage
Slips is installed；The centre position of the slips is provided with spring leaf, and the lower cone that fixes with pin is installed in the bottom of the slips,
The lower thread connection packer lower contact of the lower cone；Install between described lower cone and described packer lower contact
There are the solution seal ring that mutually fixes with the packer central tube, described solution seal ring lower end to be provided with to unseal the release of pin fixation
Ring；The B petal designs that mutually agrees with A petal designs in the fastening means are provided with the top of the packer central tube；
Described running tool top connection, running tool lower contact, running tool piston bush, piston and described feeding work
Between tool central tube, sealing is realized with O-ring seal.
Between force transmission joint and isolating valve top connection in the formation isolation valves, between power transmission set and isolating valve overcoat,
Between power transmission set and upper sleeve gasket, between isolating valve overcoat and ball seat and isolating valve lower contact and ball seat and lower sleeve gasket it
Between, sealing is realized using O-ring seal.
Between described fastening means top connection and heart axle, between described support ring and heart axle and described connection work
Between tool lower contact and heart axle, sealing is realized with O-ring seals.
Piston bush, piston, upper rule ring, packing element, lower rule ring and solution seal ring and the packing in the hanging packer
Between device central tube, sealing is realized using O-ring seal.
Instant invention overcomes many defects of prior art, its advantage is：
(1) rational in infrastructure, be easy to operate, applied widely, can with enter and realize under sand control pipe one time running tool,
Layer isolating valve and the function of slipping out of the hand of fastening means.
(2) can reduce completion, during well workover completion fluid leakage, so as to protect oil and gas reservoir not to be contaminated, and prevent
The only generation of the accident such as blowout, well kick, while improving operation actual effect, reduces the difficulty that completion cost and later stage well workover are processed.
(3) formation isolation valves described in can pass through switching tools with the ball valve with two way seal function as core
The switch for realizing ball valve is above carried or transferred, and the big orifice structure design of the formation isolation valves can make the tubing string of routine work
Normal through not affecting to enter operation under sand control and completion tubular column.
(4) hanging packer described in can be set without the need for special setting tool, using setting suppressing after finishing
High pressure mode can close the lower channel of pressure transmission hole conducting, realize the hanging packer setting in tubing string and test envelope.
(5) fastening means described in is detained by left-handed side, spline and piston bush are realized and the hanging packer and stratum
The connection of isolating valve, not only can ensure that the rotating forward of instrument is sent into, and when being easy to keep in repair the hanging packer and stratum every
Replacing from valve.
Description of the drawings
Fig. 1 is schematic diagram of the integral type oil and gas reservoir protection instrument assembly of the present invention in sleeve pipe.
Fig. 2 is the structural representation of running tool in the present invention.
Fig. 3 is the structural representation of formation isolation valves in the present invention.
Fig. 4 is the structural representation of fastening means in the present invention.
Fig. 5 is the structural representation of hanging packer in the present invention.
Specific embodiment
For making technical scheme be easier to be understood, the present invention is made with specifically below in conjunction with accompanying drawing
Bright.
The present invention integral type oil and gas reservoir protection instrument assembly, including seating nipple 1, running tool 2, formation isolation valves 3,
Fastening means 4, hanging packer 5, switching tools 6.
Fig. 1 shows the integral type oil and gas reservoir protection installation situation of the instrument assembly in sleeve pipe of the present invention.
With reference to Fig. 1, the installation situation in figure is divided into three layers, and outermost layer is sleeve pipe 7；Intermediate layer is that order is arranged on the set
The screen casing of seating nipple 1, formation isolation valves 3, fastening means 4, hanging packer 5 and the connection hanging packer 5 in pipe 7
8；Innermost layer is mounted in the seating nipple 1 and the running tool 2 through the formation isolation valves 3 and the connection feeding
The switching tools 6 of instrument 2；Described seating nipple 1, running tool 2, formation isolation valves 3, fastening means 4, hanging packer 5 with
And switching tools 6 are between concentric installation, and each instrument in intermediate layer and are spiral shell and each instrument of innermost layer between
Line connects；The slips connected through in the hanging packer 5 in outermost layer and intermediate layer is given in the grappling of 7 inwall of described sleeve pipe
Realizing, intermediate layer and innermost layer connect through elastic claw and 1 inwall upper groove of the seating nipple in the running tool 2
Cooperation is achieved.
Fig. 2 shows the structure situation of running tool 2 in the present invention.
With reference to Fig. 2, described running tool 2 includes running tool central tube 25, the running tool central tube 25 upper
End is threadedly coupled running tool top connection 21 and is fixed by anti-rotation shear pin 23, the running tool central tube 25
Lower end is threadedly coupled running tool lower contact 222 and is fixed by fixing pin, in the running tool central tube 25
Portion is provided with running tool bushing 29；Slide block 210, the feeding are installed by fixing pin on described running tool bushing 29
Running tool spring 27 is installed between instrument top connection 21 and the running tool bushing 29, the running tool spring 27
The outside lower end for being located at the running tool top connection 21 is provided with running tool overcoat 26, the slide block 210 and running tool
Running tool elastic claw 214 is installed between lower contact 222, the inner side of the running tool elastic claw 214 is provided with running tool
Piston bush 218；Described running tool piston bush 218 by the fixing pin of the shear pin of its upper end and its lower end with described
Running tool central tube 25 mutually fix, and positioned with shop bolt 211 and lock ring 212；Described running tool piston
Piston is installed by piston fixing pin 219 in set 218, described running tool top connection 21, running tool lower contact 222,
Sealing is realized with O-ring seal between running tool piston bush 218, piston and described running tool central tube 25.
Described running tool 2 is connected with described seating nipple 1 by running tool elastic claw 214, and for described
Tool barrel 1 provides positive torque, described seating nipple 1, formation isolation valves 3, fastening means 4, hanging packer 5 when its outer layer etc.
After instrument is lowered into position, may be selected to take mechanically or hydraulically two ways to be slipped out of the hand.
The operation principle of the running tool 2 is as follows：
Described running tool elastic claw 214 is formed with described running tool overcoat 26, running tool lower contact 222 and is propped up
Support, it is possible to achieve enter under running tool 2.Due to described running tool piston bush 218 and described running tool central tube
O-ring seal is installed between 25, therefore plunger shaft can be formed between the two, described feeding work is made when suppressing by pressure transmission hole
When moving on tool piston bush 218, the running tool elastic claw 214 for driving described is moved up therewith, so that described feeding work
Tool elastic claw 214 withdraws.
214 another kind of retract mode of the running tool elastic claw is to rotate forward described running tool top connection 21
1/3 circle, and with the described anti-rotation shear pin 23 of resulting shearing force shearing and push described running tool top connection
21, the running tool central tube 25 so as to drive described is moved down, and the described running tool elastic claw 214 of order is relatively upper to be moved,
I.e. recoverable described running tool elastic claw 214.
Fig. 3 shows the structure situation of formation isolation valves 3 in the present invention.
With reference to Fig. 3, described formation isolation valves 3 include the ball valve that fixes on ball seat 312 and by gland 39
311, the upper end of the ball valve 311 connects power transmission set 35 by power transmission pin 310, and the upper end of the power transmission set 35 passes through adapter sleeve
34 connection isolating valve elastic claws 33, the lower end of the power transmission set 35 are bumped into the internal diameter of the gland 39, the isolating valve elastic claw
33 upper end connects isolating valve top connection 31 by force transmission joint 32, and the outside of the power transmission set 35 is provided with isolating valve overcoat
36, the inner side of the power transmission set 35 is provided with upper sleeve gasket 38, the inner side half the circumference of the sleeve where it joins the shoulder and the upper sleeve gasket 38 of the power transmission set 35
Spring 37 is provided between the high spot in outside, the lower end of the ball valve 311 is provided with the lower sealing for being bumped into the ball seat 312
Set 313, the lower end of the lower sleeve gasket 313 connect isolating valve lower contact 315, the outside half the circumference of the sleeve where it joins the shoulder of the lower sleeve gasket 313 and institute
State and between isolating valve lower contact 315, be provided with lower spring 314；Between described force transmission joint 32 and isolating valve top connection 31, institute
Between power transmission set 35 and upper sleeve gasket 38 between the power transmission set 35 that states and isolating valve overcoat 36, described, outside described isolating valve
Cover between 36 and ball seat 312 and between the isolating valve lower contact 315 and the ball seat 312 and lower sleeve gasket 313, adopt O
Sealing realized by type sealing ring.
One end of the formation isolation valves 3 is threadedly coupled with described running tool 2, its other end and described connection work
Tool 4 is threadedly coupled, and connects described hanging packer 5 by described fastening means 4.
The operation principle of the formation isolation valves 3 is as follows：
Described ball valve 311 is fixed by described gland 39 after the installation of ball seat 312, and described power transmission set 35 is by passing
Power pin 310 is connected with described ball valve 311, when described power transmission set 35 is moved up and down, it is possible to achieve the ball valve 311
Rotate, so as to control the switch of the formation isolation valves 3；As the upper/lower terminal of the ball valve 311 is separately installed with upper sealing
Set 38 and lower sleeve gasket 313, therefore remain to the ball valve under the pressure effect of spring 37 and lower spring 314 on described
311 sealing；As force transmission joint 32 is connected with power transmission set 35 by adapter sleeve 34, and described force transmission joint 32 is by outside which
Threaded connection isolating valve elastic claw 33, so, when moving on described switching tools 6, can be by a series of annexation band
Move on force transmission joint 32 in the dynamic formation isolation valves 3, and drive described ball valve 311 to rotate forward to closed mode, with
It, the elastic pawl seat that moves on described isolating valve elastic claw 33 and enter in the isolating valve top connection 31 realize moving spacing,
Now, described switching tools 6 continue above to carry；When under described switching tools 6
During pressure, then the force transmission joint 32 in the formation isolation valves 3 is driven to move down by a series of annexation, so that described
Ball valve 311 is rotated backward to open mode, and hereafter, described force transmission joint 32 continues to move down, and will drive described isolating valve bullet
Property elastic pawl seat abjection realization of the pawl 33 from the isolating valve top connection 31 move down spacing, now, the formation isolation valves 3
Internal big orifice is become due to the open mode of ball valve 311, described switching tools 6 can pass through the ball valve 311 of open mode after
Continuous decentralization.
Fig. 4 shows the structure situation of fastening means 4 in the present invention.
With reference to Fig. 4, described fastening means 4 includes that heart axle 44, the top of the heart axle 44 are provided with fastening means and connect
41, the outside of the fastening means top connection 41 is provided with the outer tube 43 that fixes with shear pin, the top of the outer tube 43
Baffle ring 42 is installed, the lower end of the outer tube 43 is set to A petal designs 411；Installed by spline 47 at the middle part of the heart axle 44
Spacing ring 48 and fastening means elastic claw 49, the lower end of described fastening means elastic claw 49 are provided with left-handed foreign side's button 412, institute
The inside for stating fastening means elastic claw 49 is provided with the support ring 410 that fixes by shear pin with heart axle 44；The heart axle 44
Bottom fastening means lower contact 414 is installed, guide shoe 416, the connection are installed in the bottom of the fastening means lower contact 414
Module sealing 415 is provided between the shoulder of instrument lower contact 414 and the guide shoe 416；Described fastening means top connection 41,
With O-ring seals reality between described support ring 410 and described fastening means lower contact 414 and described heart axle 44
Now seal.
One end of the fastening means 4 connects described formation isolation valves 3 by described fastening means top connection 41, its
The other end is then by left-handed foreign side's button 412 and the A petals knot of 43 lower end of the outer tube of 49 lower end of fastening means elastic claw
Structure 411 connects supporting hanging packer 5 at the top of which.
The operation principle of the fastening means 4 is as follows：
During the removing of the fastening means 4, described fastening means elastic claw 49 is primarily subjected to described suspension
The pressure of the bottoms such as packer 5, screen casing 8, sleeve pipe 7, described outer tube 43 are primarily subjected to described hanging packer 5, screen casing 8
Due to the moment of torsion that friction is produced between described sleeve pipe 7, when described fastening means 4 and described hanging packer 5 are realized connecting
When connecing, its module sealing 415 will be bumped in the central tube of the hanging packer 5, to block in the outstanding packer hanging device 5
Outer intercommunication.
When needing to slip out of the hand, annular space that can be between described sleeve pipe 7 and the outer tube 43 of the fastening means 4 is suppressed, and is made
Described support ring 410 under pressure promotion imposes shearing force to the shear pin being fixed on heart axle 44 and moves up
Into making its lower surface completely into the cannelure inside the fastening means elastic claw 49, now, the fastening means elasticity
The opening portion of 49 lower end of pawl due to lose the support force of the support ring 410 and to contract and with its at the top of supporting described in
Hanging packer 5 is disengaged, so as to realize slipping out of the hand for the fastening means elastic claw 49.
The another kind method of slipping out of the hand of the fastening means elastic claw 49 is given by rotating forward described running tool 2
Realize：Due to A petal design 411 and which at the top of supporting suspension envelope of the outer tube 43 in the fastening means 4 by its lower end
It is connected every device 5, and described hanging packer 5 passes through slips anchoring in the inwall of described sleeve pipe 7, therefore, when the connection work
Have 4 tops running tool 2 rotate forward when, the outer tube 43 in the fastening means 4 does not turn, now, the fastening means top connection 41, heart
Axle 44 and fastening means elastic claw 49 are then rotated forward together with described running tool 2, when positive torque reaches certain value, by institute
The outer tube 43 that states is fixed on the shear pin of the fastening means top connection 41 to be cut off, and hereafter, described running tool 2 continues
A fixing turn is rotated forward, the left-handed supporting connection from the top of with which of foreign side's button 412 of 49 lower end of fastening means elastic claw is made
The hanging packer 5 left-handed interior side button 52 in back-off disengage, so as to realize slipping out of the hand.
Fig. 5 shows the structure situation of hanging packer 5 in the present invention.
With reference to Fig. 5, described hanging packer 5 includes that its top is provided with the packer central tube 56 of B petal designs 50,
Left-handed interior side's button that the threaded upper ends connection of the packer central tube 56 is mutually agreed with left-handed foreign side's button 412 in fastening means 4
52, the bottom of left-handed interior side's button 52 is provided with the packer piston bush being threadedly coupled with described packer central tube 56
53, the external screw-thread connection gland 51 of left-handed interior side's button 52；Fixed with shear pin in described packer piston bush 53
Packer piston 54, is provided with packer lock ring 55 between described packer piston 54 and described packer central tube 56,
Described 54 lower end of packer piston order installs rule ring 57, packing element 58, lower rule ring 59, the lower thread of the lower rule ring 59
Connection upper cone 510；Bushing installation slips cage 511 fixed with shear pin, described slips cage in described upper cone 510
Slips 513 is installed in 511, spring leaf 514 is installed in the centre position of the slips 513, and lower cone is installed in the bottom of the slips 513
Body 515 is simultaneously fixed with pin；The lower thread connection packer lower contact 518 of the lower cone 515, described lower cone 515
The solution seal ring 517 that is mutually fixed with described packer central tube 56 is installed between described packer lower contact 518, described
517 lower end of solution seal ring by unseal pin 520 fix release ring 519；Described packer piston bush 53, packer piston
54th, upper rule ring 57, between packing element 58, lower rule ring 59 and solution seal ring 517 and described packer central tube 56 using O-shaped close
Sealing is realized in seal.
B petal design 50 and left-handed interior side button 52 and the connection work of the described hanging packer 5 by its upper end
On tool 4, the connection with the fastening means 4 is realized in the cooperation of A petal designs 411 and left-handed foreign side button 412.
The operation principle of the hanging packer 5 is as follows：
Described hang hanging packer 5 and realize setting using suppressing mode in special, its setting procedure is：When one
After each instrument in formula oil and gas reservoir protection instrument assembly is respectively mounted cooperation in place, with the pressure transmission hole of the setting instrument and institute
State pressure transmission hole on the packer central tube 56 in hanging packer 5 relative and by pitching, suppress that to act on pressure described
Packer piston 54 on and promote which to proceed to cut off the shear pin of the fixation packer piston 54, now, institute
The packer piston 54 that states continues to move ahead and promotes described upper rule ring 57, packing element 58, lower rule ring 59, upper cone 510 descending, directly
Shear pin to the fixation slips cage 511 is cut off, and is subject to the slips 513 in the slips cage 511 described
There is radial displacement in the active force of upper cone 510 and lower cone 515, so as to bite the inwall of described sleeve pipe 7, described so as to coordinate
Packing element 58 is fully sealed with 7 inwall of described sleeve pipe, realizes the Integral seat sealed of the hanging packer 5.When needing in work progress
When wanting the hanging packer 5 to unseal, enter corresponding unsealing tool under only needing and can achieve its deblocking.
The integral type oil and gas reservoir protection instrument assembly of the present invention can with entering under sand control pipe one time, when its in place after, can
Directly suppress in sand control pipe and realize setting and described running tool 2, formation isolation valves 3 for the hanging packer 5
The function such as slip out of the hand with fastening means 4.
Formation isolation valves 3 in the integral type oil and gas reservoir protection instrument assembly of the present invention, with two way seal function
Ball valve 311 be core, can be simple to operate by above carrying or transfer the switch that switching tools 6 realize the ball valve 311；Separately
Outward, described formation isolation valves 3 take big orifice structure design, can make the tubing string of routine work normal through not affecting to prevent
Enter operation under sand and completion tubular column.
Hanging packer 5 in the integral type oil and gas reservoir protection instrument assembly of the present invention, without the need for special setting tool
Can be set, set the lower channel for closing pressure transmission hole conducting by high pressure is suppressed after finishing, realize the hanging packer 5
Setting in tubing string and test envelope.
The integral type oil and gas reservoir of the present invention protects the fastening means 4 of instrument assembly, is detained by left-handed side, spends spline and work
The connection and replacing of the hanging packer 5 and formation isolation valves 3 realized by plug sleeve, it is ensured that instrument is rotated forward to be sent into, convenient every
Later stage from valve is changed.
The integral type oil and gas reservoir protection instrument assembly of the present invention, by described running tool 2 and fastening means 4
The connection of ectonexine instrument is realized in fit on, in real time job, under the sand control pipe that can constitute with screen casing 8 with sleeve 7 one time
Enter, and certain moment of torsion can be transmitted under special circumstances；Between the running tool 2, formation isolation valves 3, fastening means 4 according to
The connected mode of left-handed side's button and spline between secondary threaded connection and the fastening means 4 and hanging packer 5, Ke Yi
Under enter during provide turn round and supply pressure, be easy in case of emergency build the pressure by annular space or rotate forward slip out of the hand.
The integral type oil and gas reservoir protection instrument assembly of the present invention, after being lowered into position, can pass through tubing string in operation process
Interior pitching, building the pressure carries out setting for the hanging packer 5；After testing sealed knot beam, can be by building the pressure while pushing realization in tubing string
Running tool is slipped out of the hand；After acting sand control service aid, described formation isolation valves 3 are automatically switched off, and realize two-way leakproof, blowout prevention
Function.
When entering flow string under the later stage, formation isolation valves 3 described in tieback do not affect the normal production order.
When later stage workover treatment needs to change described formation isolation valves 3, can enter down described running tool 2 is carried out back
Receive, left-handed side's button (left-handed foreign side's button 412 and the left side for making described fastening means 4 be connected at both with described hanging packer 5
52) place disengages medial rotation side's button, to realize being individually replaced for the formation isolation valves 3.
Due to the present invention integral type oil and gas reservoir protection instrument assembly can with sand control pipe one time under enter, and have two-way
Sealing function, the connected mode of particularly described fastening means and formation isolation valves and hanging packer be easy to disengage with more
Change, compared to prior art, operation actual effect is good, safe, simple to operate, applied widely, with good practicality and
High is technical.
Above by reference to drawings and Examples, the technical scheme of instrument assembly is protected to carry out to integral type oil and gas reservoir of the present invention
Schematic description, the description be not restricted.Those skilled in the art will be understood that in actual applications, in the present invention
The facilities of each instrument may occur some changes, and other staff under its enlightenment are likely to make similar Design.
Specifically：Without departing from the design aim of the present invention, all obvious changes or similar Design, wrap
It is contained within protection scope of the present invention.
Claims (8)
1. a kind of integral type oil and gas reservoir protects instrument assembly, including seating nipple, it is characterized in that：It also includes and described work
The running tool of the concentric installation of cylinder, formation isolation valves, fastening means, hanging packer and switching tools；Described work
Cylinder, formation isolation valves, fastening means and hanging packer are linked in sequence by screw thread and are integrated, and described running tool is arranged
In described seating nipple and through described formation isolation valves, the switch work described in the lower end threaded connection of the running tool
Tool；Described running tool, including running tool central tube, the upper end of the running tool central tube be provided with threaded connection and
The running tool top connection that is fixed by anti-rotation shear pin, the lower end of the running tool central tube are provided with screw thread company
The running tool lower contact for connecing and being fixed by fixing pin, is provided with running tool in the middle part of the running tool central tube
Bushing, is provided with the slide block of fixing pin installation on described running tool bushing；The running tool top connection and institute
State and between running tool bushing, be provided with running tool spring, the outside of the running tool spring is provided with positioned at the feeding
The running tool overcoat of instrument top connection lower end, is provided with running tool elasticity between described slide block and running tool lower contact
Pawl, is provided with running tool piston bush on the inside of described running tool elastic claw, described running tool piston bush is by thereon
The fixing pin of the shear pin at end and its lower end is fixed with described running tool central tube and is given with shop bolt and lock ring
To position；The piston of piston fixing pin installation is provided with described running tool piston bush.
2. integral type oil and gas reservoir according to claim 1 protects instrument assembly, it is characterized in that：Described formation isolation
Valve, including the ball valve that fixes on ball seat and by gland, the upper end of the ball valve be provided with power transmission pin and its
The power transmission set of connection；The upper end of the power transmission set connects isolating valve elastic claw by adapter sleeve, and the lower end of the power transmission set is bumped into
The internal diameter of the gland, the inner side of the power transmission set are provided with upper sleeve gasket, and the outside of the power transmission set is provided with outside isolating valve
Set, is provided with spring between the high spot on the outside of the inner side half the circumference of the sleeve where it joins the shoulder and the upper sleeve gasket of the power transmission set；The isolating valve
The upper end of elastic claw connects isolating valve top connection by force transmission joint；The lower end of the ball valve is provided with and is bumped under the ball seat
Sealing shroud, the lower end connection isolating valve lower contact of the lower sleeve gasket, the outside half the circumference of the sleeve where it joins the shoulder of the lower sleeve gasket and the isolating valve
Lower spring is provided between lower contact.
3. integral type oil and gas reservoir according to claim 1 protects instrument assembly, it is characterized in that：Described fastening means,
Including heart axle, the top of the heart axle is provided with fastening means top connection, is provided with spline installation in the middle part of the heart axle
Spacing ring and fastening means elastic claw, the bottom of the heart axle is provided with fastening means lower contact；Connect on the fastening means
The outside of head is provided with the outer tube that fixes with shear pin, and the top of the outer tube is provided with baffle ring, and the lower end of the outer tube sets
It is set to A petal designs；The fastening means elastic claw is internally provided with the support that fixes by shear pin with the heart axle
Ring, the lower end of the fastening means elastic claw are provided with left-handed foreign side's button；Guide shoe is installed in the bottom of the fastening means lower contact,
Module sealing is provided between the shoulder and the guide shoe of the fastening means lower contact.
4. integral type oil and gas reservoir according to claim 1 protects instrument assembly, it is characterized in that：Described suspension packing
Device, including packer central tube, the threaded upper ends connection of the packer central tube and left-handed foreign side's button in the fastening means
The left-handed interior side's button for mutually agreeing with, the bottom of left-handed interior side's button are provided with the envelope being threadedly coupled with described packer central tube
Every device piston bush, the external screw-thread connection gland of left-handed interior side's button is solid with shear pin in described packer piston bush
Determine packer piston, between described packer piston and described packer central tube, be provided with packer lock ring, described
Packer piston order installs rule ring, packing element and lower rule ring；The lower thread connection upper cone of the lower rule ring, described
Epicone body in the slips cage fixed with shear pin of bushing setting, slips is installed in described slips cage；In the slips
Meta is installed and is equipped with spring leaf, and the lower cone that fixes with pin, the lower thread of the lower cone are installed in the bottom of the slips
Connection packer lower contact；It is provided between described lower cone and described packer lower contact and the packer central tube
The solution seal ring that mutually fixes, described solution seal ring lower end are provided with to unseal the release ring of pin fixation；The packer central tube
Top be provided with the B petal designs that mutually agrees with A petal designs in the fastening means.
5. integral type oil and gas reservoir according to claim 1 protects instrument assembly, it is characterized in that：On described running tool
Between joint, running tool lower contact, running tool piston bush, piston and described running tool central tube, with O-shaped sealing
Sealing realized by circle.
6. integral type oil and gas reservoir according to claim 2 protects instrument assembly, it is characterized in that：In the formation isolation valves
Force transmission joint and isolating valve top connection between, between power transmission set and isolating valve overcoat, between power transmission set and upper sleeve gasket, isolate
Between valve overcoat and ball seat and between isolating valve lower contact and ball seat and lower sleeve gasket, sealing is realized using O-ring seal.
7. integral type oil and gas reservoir according to claim 3 protects instrument assembly, it is characterized in that：On described fastening means
Between support ring and heart axle between joint and heart axle, described and between described fastening means lower contact and heart axle, with O
Shape sealing ring realizes sealing.
8. integral type oil and gas reservoir according to claim 4 protects instrument assembly, it is characterized in that：In the hanging packer
Piston bush, between piston, upper rule ring, packing element, lower rule ring and solution seal ring and the packer central tube, using O-shaped close
Sealing is realized in seal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410784832.7A CN104533335B (en) | 2014-12-16 | 2014-12-16 | Integral type oil and gas reservoir protects instrument assembly |
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| CN201410784832.7A CN104533335B (en) | 2014-12-16 | 2014-12-16 | Integral type oil and gas reservoir protects instrument assembly |
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| CN104533335B true CN104533335B (en) | 2017-03-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566153A (en) * | 2019-09-26 | 2019-12-13 | 中海油能源发展股份有限公司工程技术分公司 | reservoir protection device capable of being opened in two directions |
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| CN107829710B (en) * | 2017-09-12 | 2019-12-06 | 中国海洋石油集团有限公司 | Annular valve plate type underground safety device |
| CN108204220A (en) * | 2017-12-25 | 2018-06-26 | 中海油能源发展股份有限公司 | A kind of deep water formation isolation valves completion tool |
| CN111364956A (en) * | 2020-03-18 | 2020-07-03 | 中国海洋石油集团有限公司 | Sand control injection allocation integrated packer |
| CN111502587B (en) * | 2020-04-15 | 2021-12-17 | 中国海洋石油集团有限公司 | Remotely opened stratum isolation tool for deep well |
| CN114482891B (en) * | 2020-10-23 | 2024-06-18 | 中国石油化工股份有限公司 | Friction setting sand prevention pipe column and friction setting packer and method |
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| CN101936145A (en) * | 2010-09-06 | 2011-01-05 | 中国海洋石油总公司 | Ball valve type oil reservoir protective valve and operation method thereof |
| CN202900205U (en) * | 2012-10-23 | 2013-04-24 | 中国石油天然气股份有限公司 | Multifunctional oil testing and well completion integrated pipe column |
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| CN110566153A (en) * | 2019-09-26 | 2019-12-13 | 中海油能源发展股份有限公司工程技术分公司 | reservoir protection device capable of being opened in two directions |
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Effective date of registration: 20170109 Address after: 100027 Beijing city Dongcheng District Dongzhimen Street No. 6 Applicant after: CNOOC Energy Technology Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Applicant before: China National Offshore Oil Corporation Applicant before: CNOOC Energy Technology Co., Ltd. |
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