CN106761577A - Oil field separates adopts technology tubular column - Google Patents
Oil field separates adopts technology tubular column Download PDFInfo
- Publication number
- CN106761577A CN106761577A CN201611206494.4A CN201611206494A CN106761577A CN 106761577 A CN106761577 A CN 106761577A CN 201611206494 A CN201611206494 A CN 201611206494A CN 106761577 A CN106761577 A CN 106761577A
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- China
- Prior art keywords
- valve
- oil
- ball
- standing valve
- packing element
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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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from 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
- E21B33/126—Packers; Plugs with fluid-pressure-operated elastic cup or skirt
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
-
- 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
- E21B34/12—Valve arrangements for boreholes or wells in wells operated by movement of casings or tubings
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- 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)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The oil field separate production process tubular column can be designed to be sequentially connected from top to bottom by an oil pipe, an oil well pump, an overflowing and overpressure fixed valve, a plurality of oil pipes, a long rubber sleeve packer, an eye tube, a tail tube and a dead plug; the packer can also be designed to be sequentially connected from top to bottom by an oil pipe, a long rubber sleeve packer, a plurality of oil pipes, an oil well pump, a blowout-preventing oil drain device, an eye tube, a tail tube and a dead plug; the packer in the process pipe column can be designed to be large in drift diameter due to the fact that the expansion principle is adopted, the packer in the process can be designed on a pump and under the pump, the process requirements of two modes of top-mining and bottom-mining can be met, the design convention of the packer in the existing separation mining process is broken, the long rubber sleeve sealing surface after setting is adopted to anchor with the friction force of a sleeve, slips which easily cause the risk of blocking a drill when deblocking are removed, the potential safety hazard is eliminated from the process source, and the risk of seal-knowing and fishing is reduced.
Description
Technical field
The present invention relates to oil field every adopting technical field, and in particular to one kind be applied to cased hole completion and the water outlet of reservoir top and
The oil field of the run-down place's water outlet of sleeve pipe is every excavating technology tubing string.
Background technology
With the continuity of oil field development time, down-hole casing breaks because set occur successively in the reasons such as corrosion, causes stratum with oil
Layer UNICOM, have impact on oil field normally exploitation even pollution stratum water source welding, add up to surpass 20,000 muzzles to current petrochina
Broken well.The technique more common for the broken well of set has casing patching, chemical plugging, secondary well cementation, packer every adopting, wherein insulating
Device is every excavating technology is simple, convenient construction, low cost account for covering brokenly more than the 80% of well improvement.Currently used for every the packer master for adopting
There are two kinds, one is traditional Y111, Y211, Y341 etc. conventional every packer is adopted, and its potted component is sat using compression
Envelope compression travel is short, it is poor to compress smaller packing effect；Secondly be the long-life such as Y141, Y453, Y445 every packer is adopted, it is such
Packer needs to enter to be set under supporting special setting tool is leading, then enters down after flow string band intubation is docked just
Often production using specific purpose tool when rising, it is necessary to carry out brill mill, complicated construction technique, high cost.
Generally carried out every adopting every excavating technology using packer for the broken well of oil field set (upper strata sleeve pipe run-down or upper strata water outlet),
Existing patent family product such as Water-isolation oil production packer ZL200520141928.8 etc., its potted component is sat using compression
Envelope indoor design positioning hydraulic cavities more long cause that sealing unit compression travel is short, it is poor to compress smaller packing effect；Packing
Device inside Aided design unidirectional self-lock mechanism (being locked with self-fastening button), corresponding solution sealing mechanism etc., by oil jacket annular space space
Limit such packer often body dimension relatively thin deblocking when easy-to-draw dropout or break and, while self-locking mechanism after long-term work
Unblock difficulty itself increased salvaging difficulty；Packing is set using what shaft bottom support can not realize optional position, for artificial well
Bottom is apart from oil well of the liquid level distance more than more than 20m and the well of artificial bottom of a well operating mode poor (there are settling sand or small falling object in shaft bottom)
It is inapplicable.Therefore, need badly and develop a kind of novel oilfield every excavating technology.
The content of the invention
It is an object of the invention to provide a kind of oil field every excavating technology tubing string, the process pipe string is adopted in construction is adopted first
Set without constraint expanding with potted component, and friction grappling is carried out using the sealing surface long for setting rear and casing-contact, it is real
Show the design without anchor packer, eliminated every the potential safety hazard for adopting tubing string bit freezing from technique source, realize one-trip string
Completion sets, produces, and does not influence normal oil recovery during packing, with longer effective with conventional Water-isolation oil production packer compared with
Packing face, and upper lifting pipe post is to be capable of achieving to unseal the oil field salvaged every excavating technology tubing string.
The technical solution adopted in the present invention is as follows：
A kind of oil field is every excavating technology tubing string, including the oil pipe, oil well pump, tail pipe, dead stifled being sequentially connected from top to bottom, described
Oil well pump and tail pipe between be also connected with overcurrent-overvoltage standing valve, the first long packing element packer and eye pipe in turn from top to bottom.
A kind of oil field is every excavating technology tubing string, including the tube oil pump tail pipe being sequentially connected from top to bottom is extremely blocked up, described
Oil pipe and oil well pump are connected with the second long packing element packer, are connected with blowout prevention draining between oil well pump and tail pipe in turn from top to bottom
Device and eye pipe.
Described overcurrent-overvoltage standing valve in push the ball mechanism, draining pin, standing valve top connection, standing valve at least including connecing
Head, valve ball, ball-handling snap, valve cover body, valve seat and standing valve lower contact composition, described standing valve center tap top connect
It is connected to and is connected with standing valve lower contact, is set in the cavity of standing valve top connection with standing valve top connection, standing valve center tap bottom
Mechanism of pushing the ball is equipped with, standing valve top connection top is extended on mechanism top of pushing the ball, and valve ball is provided with standing valve center tap, all
You are fixed on valve cover body top by ball by snap of controlling ball, and valve cover body bottom is provided with valve seat, and the diameter of valve ball is less than
Footpath in valve cover body, and more than valve seat middle through-hole internal diameter, the inside top of standing valve top connection is provided with blind hole, on standing valve
Joint middle part side is additionally provided with the oil leak hole of outer chamber in connection standing valve top connection, and oil leak hole is blocked by draining pin.
Described mechanism of pushing the ball is made up of pole cap, normal dog and push rod of pushing the ball, and push rod of pushing the ball is placed in standing valve top connection
Cavity in, push rod of pushing the ball is connected by the external screw thread on the outside of top with the internal thread of pole cap bottom inside, pole cap bottom outside
It is provided with normal dog.
The upper end outer wall that described standing valve center tap lower end inner wall has internal thread, standing valve lower contact has external screw thread, Gu
Determine valve center tap to be connected through a screw thread with standing valve lower contact, standing valve lower contact upper end inwall has internal thread, valve cover body leads to
The external screw thread for crossing its outer wall is connected with the internal thread of standing valve lower contact upper end inwall, under the upper end internal thread of standing valve lower contact
Step of the side with clamping valve seat, valve seat is connected between the upper end internal thread of standing valve lower contact and step.
The first described long packing element packer at least includes top connection, central tube, adapter sleeve, connector, piston switch, bullet
Spring abutment set, intermediate rubber cartridge module, slip cap, lower contact, steel ball, shear pin and ball seat are set, the upper end of described central tube passes through
Top connection is threaded with, the lower end of central tube has been connected through a screw thread lower contact, has been socketed with successively from top to bottom on central tube
Adapter sleeve, connector, spring socket sleeve, intermediate rubber cartridge module and slip cap, the upper end of adapter sleeve is by unsealing shear pin and top connection
It is connected, the lower end of adapter sleeve is connected with connector upper end periphery, and connector lower end inner headed face is connected with piston switch, connection
Head lower end periphery is threadedly coupled with the upper end inner headed face of spring socket sleeve, and vulcanization has Rubber cap-like outer cover for closure on described piston switch, living
The inside for filling in switch is equipped with sealing ring, is clamped with back-moving spring between piston switch and spring socket sleeve, the lower end of spring socket sleeve with
Intermediate rubber cartridge module upper end connects, and the lower end of intermediate rubber cartridge module is connected with slip cap, positioning step is provided with lower contact, institute
The ball seat stated is fixed at described positioning step by setting shear pin, and steel ball is provided with ball seat.
The second described long packing element packer at least includes top connection, central tube, adapter sleeve, connector, piston switch, bullet
Spring abutment set, intermediate rubber cartridge module, slip cap and lower contact, the upper end of described central tube have been connected through a screw thread top connection, in
The lower end of heart pipe has been connected through a screw thread lower contact, is socketed with adapter sleeve, connector, spring base on central tube successively from top to bottom
Set, intermediate rubber cartridge module and slip cap, the upper end of adapter sleeve are connected by unsealing shear pin with top connection, the lower end of adapter sleeve and company
Upper end of joint periphery is connected, and connector lower end inner headed face is connected with piston switch, connector lower end periphery and spring base
The upper end inner headed face threaded connection of set, vulcanization has Rubber cap-like outer cover for closure on described piston switch, and the inside of piston switch is equipped with sealing
Circle, is clamped with back-moving spring between piston switch and spring socket sleeve, the lower end of spring socket sleeve is connected with intermediate rubber cartridge module upper end,
The lower end of intermediate rubber cartridge module is connected with slip cap.
Described intermediate rubber cartridge module includes upper jacket, upper packing element fixed seat, sets packing element, lower jacket and lower rubber cylinder and fix
Seat, the upper end of described upper jacket is threadedly coupled with spring socket sleeve, and the lower end of upper jacket is threadedly coupled with upper packing element fixed seat, on
Vulcanization is fixed with and sets packing element between packing element fixed seat and lower rubber cylinder fixed seat, and steel belt framework, steel band bone are set with sealing cylinder
The outer round surface vulcanization of frame is fixed with cartridge, and the periphery of lower rubber cylinder fixed seat is connected with the upper end of lower jacket, lower jacket
Lower end be threadedly coupled with slip cap, the interior circular groove of slip cap is built with sealing ring.
Described oil well pump is directly connected to overcurrent-overvoltage standing valve, connects with the first long packing element packer again after spacer tubing
Connect, described tail pipe is generally 3~4 oil pipes.
Described oil pipe is directly connected to the second long packing element packer, is connected with oil well pump again after being spaced some oil pipes.
Beneficial effects of the present invention are as follows：
1st, the present invention is first every the packer set using potted component expanding in excavating technology, and utilization packing long
Device packing element forms big section and effectively insulates face, on the premise of realizing that one-trip string completes to set, produce, greatly improved and insulates into
Power；
2nd, the packer in the technique without any position constraint there is longer compression travel can obtain larger compression ratio,
It is enough to ensure that sealing unit fully sets and produces effective contact seal section long, good sealing effect with sleeve pipe；
3rd, the packer in the technique controls locking, the gas pressure relief slot control deblocking on central tube using piston switch,
Design difficulty of processing is greatly reduced on the premise of realizing electrodeless differential self-locking, while ensure that packer bulk strength, is dropped
Accident rate is salvaged in low whole process pipe string later stage deblocking；
4th, the technique is supported and set without shaft bottom and do not influenceed by casing coupling, is capable of achieving the seat of optional position in pit shaft
Envelope, deblocking, pit shaft strong adaptability；
5th, the packer in the technique is simple as a result of extension Principle internal structure, therefore may be designed as big orifice,
Packer in technique can design can be designed under pump again on pump, can meet every above adopting down and adopt under upper two ways
Technological requirement, i.e. present invention process tubing string can be designed as (from top to bottom)：Oil pipe+oil well pump+overcurrent-overvoltage standing valve+oil pipe
Some+long packing element packer+eye pipe+tail pipe+dead stifled；It is also designed to (from top to bottom)：Oil pipe+long packing element packer (is needed
Remove the steel ball of inside, set shear pin, ball seat)+oil pipe is some+oil well pump+blowout control drip+eye pipe+tail pipe+dead stifled；
6th, the technique broken first early stage every in excavating technology design packer " sealing unit+slips " design it is normal
Rule, employ packing element sealing surface long after setting carries out grappling with sleeve friction power, and bit freezing wind is easily caused when eliminating deblocking
The slips of danger, potential safety hazard is eliminated from technique source, is significantly reduced deblocking and is salvaged risk, while reducing design processing
Difficulty, simplify working procedure, improve efficiency of construction.
Brief description of the drawings
Fig. 1 is a kind of structural representation one of oil field every excavating technology tubing string；
Fig. 2 is a kind of structural representation two of oil field every excavating technology tubing string；
Fig. 3 is the structural representation of overcurrent-overvoltage standing valve；
Fig. 4 is the structural representation of long packing element packer.
Description of reference numerals
1- oil pipes, 2- oil well pumps, 3- overcurrent-overvoltages standing valve, the long packing element packers of 4.1- first, the long packing element types of 4.2- second
Packer, 5- pipe, 6- tail pipes, 7- are extremely blocked up, 301- pole caps, 302- normal dogs, 303- push the ball push rod, 304- drainings pin,
The top connection of 305- standing valves, 306- standing valves center tap, 307- valve balls, 308- ball-handlings snap, 309- valves cover body, 310- are all
That seat, the lower contact of 311- standing valves, 401- top connections, 402- central tubes, 403- deblockings shear pin, 404- adapter sleeves, 405- connections
Head, 406-O types circle, 407- Rubber cap-like outer cover for closure, 408- piston switch, 409- back-moving springs, 410- spring socket sleeves, 411- upper jackets,
The upper packing element fixed seats of 412-, 413- set packing element, 414- steel belt frameworks, 415- cartridges, 416- lower jackets, 417- lower rubber cylinders
Fixed seat, 418- slip caps, 419- sealing rings, 420- lower contacts, 421- steel balls, 422- set shear pin, 423- ball seats.
Explanation is further explained to the present invention below in conjunction with the accompanying drawings：
Specific embodiment
Embodiment 1：
As shown in figure 1, the invention provides a kind of oil field every excavating technology tubing string, including the oil pipe being sequentially connected from top to bottom
1st, oil well pump 2, tail pipe 6, extremely stifled 7, are also connected with overcurrent-overvoltage in turn and consolidate from top to bottom between described oil well pump 2 and tail pipe 6
Determine the long packing element packer 4.1 of valve 3 first and eye pipe 5.
As shown in figure 3, described overcurrent-overvoltage standing valve 3 is at least including on mechanism of pushing the ball, draining pin 304, standing valve
Under joint 305, standing valve center tap 306, valve ball 307, ball-handling snap 308, valve cover body 309, valve seat 310 and standing valve
Joint 311 is constituted, and the described top of standing valve center tap 306 is connected with and standing valve top connection 305, standing valve center tap 306
Bottom is connected with standing valve lower contact 311, and mechanism of pushing the ball is provided with the cavity of standing valve top connection 305, mechanism top of pushing the ball
Extend the top of standing valve top connection 305, valve ball 307 is provided with standing valve center tap 306, valve ball 307 is by ball-handling
Snap 308 is fixed on the top of valve cover body 309, and the bottom of valve cover body 309 is provided with valve seat 310, and the diameter of valve ball 307 is small
In the internal diameter of valve cover body 309, and more than the middle through-hole internal diameter of valve seat 310, the inside top of standing valve top connection 305 is provided with blind
Hole, the middle part side of standing valve top connection 305 is additionally provided with the oil leak hole of outer chamber in connection standing valve top connection 305, oil leak hole
Blocked by draining pin 304.
As shown in figure 4, the first described long packing element packer 4.1 at least includes top connection 401, central tube 402, adapter sleeve
404th, connector 405, piston switch 408, spring socket sleeve 410, intermediate rubber cartridge module, slip cap 418, lower contact 420, steel ball
421st, shear pin 422 and ball seat 423 are set, the upper end of described central tube 402 has been connected through a screw thread top connection 401, central tube
402 lower end has been connected through a screw thread lower contact 420, is socketed with adapter sleeve 404, connection on central tube 402 successively from top to bottom
First 405, spring socket sleeve 410, intermediate rubber cartridge module and slip cap 418, the upper end of adapter sleeve 404 by unseal shear pin 403 with it is upper
Joint 401 is connected, and the lower end of adapter sleeve 404 is connected with the upper end periphery of connector 405, the lower end inner headed face of connector 405 and work
Plug switch 408 is connected, and the lower end periphery of connector 405 is threadedly coupled with the upper end inner headed face of spring socket sleeve 410, described work
The inside that vulcanization has Rubber cap-like outer cover for closure 407, piston switch 408 on plug switch 408 is equipped with sealing ring, piston switch 408 and spring base
Back-moving spring 409 is clamped between set 410, the lower end of spring socket sleeve 410 is connected with intermediate rubber cartridge module upper end, middle packing element group
The lower end of part is connected with slip cap 418, and positioning step is provided with lower contact 420, and described ball seat 423 is by setting shear pin
422 are fixed at described positioning step, and steel ball 421 is provided with ball seat 423.
Described intermediate rubber cartridge module includes upper jacket 411, upper packing element fixed seat 412, sets packing element 413, lower jacket 416
With lower rubber cylinder fixed seat 417, the upper end of described upper jacket 411 is threadedly coupled with spring socket sleeve 410, the lower end of upper jacket 411
It is threadedly coupled with upper packing element fixed seat 412, vulcanization is fixed with and sets between upper packing element fixed seat 412 and lower rubber cylinder fixed seat 417
Packing element 413, is set with steel belt framework 414 in sealing cylinder 413, the outer round surface vulcanization of steel belt framework 414 is fixed with cartridge
415, the upper end of the cylindrical and lower jacket 416 of lower rubber cylinder fixed seat 417 is connected, lower end and the screw thread of slip cap 418 of lower jacket 416
Connection, the interior circular groove of slip cap 418 is built with sealing ring 419.
During construction, only need to be by this packer with being connected in oil extraction in oil field tubing string, its tubing string may be designed as (from well head extremely
Underground)：The some 4.1+ pipe 5+ tail pipes 6+ of+the first long packing element packer of oil pipe 1+ oil well pump 2+ overcurrent-overvoltage standing valve 3+ oil pipes
Dead stifled 7, standing valve of the prior art is replaced by can excessively stream, over-pressed overcurrent-overvoltage standing valve 3；Oil pipe is suppressed, and works as pressure
Start to packer during 5MPa, 10MPa when packer setting, 15MPa when set shear pin 422 and cut, steel ball 421 and ball seat 423
Fall into tail pipe, lower oil well pump, sucker rod simultaneously touch pump, and now overcurrent-overvoltage standing valve is seated on ball seat, install production wellhead and
Can start after oil pumper it is normal recover the oil, without any position constraint there is longer compression travel can obtain inside the packer
Larger compression ratio, it is sufficient to ensure that sealing unit fully sets, good sealing effect；The adapter sleeve 404 of the packer upper end passes through
Deblocking shear pin 403 is threadedly coupled with top connection 401, deblocking shear pin is cut when needing to salvage, by putting on joint in continuation
401, the first described long packing element packer is risen with flow string, you can complete inspection pump or fishing.
Embodiment 2：
As shown in Fig. 2 a kind of oil field is every excavating technology tubing string, including the tail pipe of 1 oil well pump of oil pipe 2 being sequentially connected from top to bottom
6 dead stifled 7, described oil pipe 1 and oil well pump 2 is connected with the second long packing element packer 4.2, from upper between oil well pump 2 and tail pipe 6
Under be connected with blowout control drip and eye pipe 5 in turn.
The second described long packing element packer 4.2 at least includes top connection 401, central tube 402, adapter sleeve 404, connector
405th, piston switch 408, spring socket sleeve 410, intermediate rubber cartridge module, slip cap 418 and lower contact 420, described central tube 402
Upper end be connected through a screw thread top connection 401, the lower end of central tube 402 has been connected through a screw thread lower contact 420, central tube
It is socketed with adapter sleeve 404, connector 405, spring socket sleeve 410, intermediate rubber cartridge module and slip cap on 402 successively from top to bottom
418, the upper end of adapter sleeve 404 is connected by unsealing shear pin 403 with top connection 401, lower end and the connector 405 of adapter sleeve 404
Upper end periphery connection, the lower end inner headed face of connector 405 is connected with piston switch 408, the lower end periphery of connector 405 and bullet
The upper end inner headed face threaded connection of spring abutment set 410, vulcanization has Rubber cap-like outer cover for closure 407, piston switch on described piston switch 408
408 inside is equipped with sealing ring, and back-moving spring 409, spring socket sleeve 410 are clamped between piston switch 408 and spring socket sleeve 410
Lower end be connected with intermediate rubber cartridge module upper end, the lower end of intermediate rubber cartridge module is connected with slip cap 418；Described middle packing element
Component includes upper jacket 411, upper packing element fixed seat 412, sets packing element 413, lower jacket 416 and lower rubber cylinder fixed seat 417, described
The upper end of upper jacket 411 be threadedly coupled with spring socket sleeve 410, the lower end of upper jacket 411 connects with the upper screw thread of packing element fixed seat 412
Connect, vulcanization is fixed with and sets packing element 413 between upper packing element fixed seat 412 and lower rubber cylinder fixed seat 417, suit in sealing cylinder 413
The outer round surface vulcanization for having steel belt framework 414, steel belt framework 414 is fixed with cartridge 415, outside lower rubber cylinder fixed seat 417
Circle is connected with the upper end of lower jacket 416, and the lower end of lower jacket 416 is threadedly coupled with slip cap 418, the interior circular groove of slip cap 418
Built with sealing ring 419.
During construction, only need to be by this packer with being connected in oil extraction in oil field tubing string, its tubing string may be designed as (from well head extremely
Underground)：Oil pipe 1+ the second long packing element packer 4.2+ oil pipes are some+and oil well pump 2+ blowout control drips+eye pipe 5+ tail pipes 6+ extremely blocks up
7, the technique has broken the design routine of the existing packer " sealing unit+slips " every in excavating technology design, employs and sets
Packing element sealing surface long carries out grappling with sleeve friction power afterwards, the slips of bit freezing risk is easily caused when eliminating deblocking, from work
Skill source eliminates potential safety hazard, significantly reduces deblocking and salvages risk, while reducing design difficulty of processing, simplifying and apply
Work operation, improve efficiency of construction.
Embodiment 3：
On the basis of embodiment 1, described mechanism of pushing the ball is by pole cap 301, normal dog 302 and 303 groups of push rod of pushing the ball
Into push rod 303 of pushing the ball is placed in the cavity of standing valve top connection 305, and push rod 303 of pushing the ball is by the external screw thread and bar on the outside of top
The internal thread connection of the bottom inside of cap 301, the bottom outside of pole cap 301 is provided with normal dog 302.
The upper end outer wall that the described lower end inner wall of standing valve center tap 306 has internal thread, standing valve lower contact 311 has outer spiral shell
Line, standing valve center tap 306 is connected through a screw thread with standing valve lower contact 311, and the upper end inwall of standing valve lower contact 311 has interior spiral shell
Line, valve cover body 309 is connected by the external screw thread of its outer wall with the internal thread of the upper end inwall of standing valve lower contact 311, standing valve
The upper end internal thread lower section of lower contact 311 has the step of clamping valve seat 310, and valve seat 310 is connected to standing valve lower contact
Between 311 upper end internal thread and step.
The assembling process of overcurrent-overvoltage standing valve 3 of the present invention is：
The upper end of push rod 303 (threaded) that will push the ball is threadedly coupled with pole cap 301, then from the top of standing valve top connection 305
Endoporus is inserted, and will be positioned using special dress snap instrument when the lower surface of pole cap 301 is concordant with the upper surface of standing valve top connection 305
Underthrust is further continued in the press-in peripheral groove of pole cap 301 of snap 302, until normal dog 302 blocks to the top of standing valve top connection 305
In the groove of side, the draining pin 304 that sealing ring will be loaded onto thereafter is screwed in from the side opening of standing valve top connection 305, is now completed
Install part.
First valve seat 310 is loaded in its medial center hole from the top of standing valve lower contact 311, then valve cover body
The upper internal threaded of 309 screw-in standing valve lower contact 311 is compacted up to valve seat 310, thereafter will using special dress snap instrument
Ball-handling snap 308 loads the upper inner hole of valve cover body 309, now completes lower part and installs.
Standing valve center tap 306 is threadedly coupled with standing valve lower contact 311, then valve ball 307 from standing valve
The top of joint 306 is put into, and now valve ball 307 is stopped by ball-handling snap 308；Then by standing valve top connection 305 and standing valve
Center tap 306 is threadedly coupled, that is, complete all installation processes.
Embodiment 4：
On the basis of embodiment 1, the first described long packing element packer 4.1 at least includes top connection 401, central tube
402nd, adapter sleeve 404, connector 405, piston switch 408, spring socket sleeve 410, intermediate rubber cartridge module, slip cap 418, lower contact
420th, steel ball 421, set shear pin 422 and ball seat 423, the upper end of described central tube 402 has been connected through a screw thread top connection
401, the lower end of central tube 402 has been connected through a screw thread lower contact 420, is socketed with connection on central tube 402 successively from top to bottom
Set 404, connector 405, spring socket sleeve 410, intermediate rubber cartridge module and slip cap 418, the upper end of adapter sleeve 404 is cut by deblocking
Nail 403 is connected with top connection 401, and the lower end of adapter sleeve 404 is connected with the upper end periphery of connector 405, in the lower end of connector 405
Disc is connected with piston switch 408, and the lower end periphery of connector 405 is threadedly coupled with the upper end inner headed face of spring socket sleeve 410,
The inside that vulcanization has Rubber cap-like outer cover for closure 407, piston switch 408 on described piston switch 408 is equipped with sealing ring, piston switch 408
Back-moving spring 409 is clamped between spring socket sleeve 410, the lower end of spring socket sleeve 410 is connected with intermediate rubber cartridge module upper end, in
Between the lower end of packing element component be connected with slip cap 418, positioning step is provided with lower contact 420, described ball seat 423 is by sitting
Envelope shear pin 422 is fixed at described positioning step, and steel ball 421 is provided with ball seat 423；Described intermediate rubber cartridge module includes
Upper jacket 411, upper packing element fixed seat 412, set packing element 413, lower jacket 416 and lower rubber cylinder fixed seat 417, described upper jacket
411 upper end is threadedly coupled with spring socket sleeve 410, and the lower end of upper jacket 411 is threadedly coupled with upper packing element fixed seat 412, gluing
Vulcanization is fixed with and sets packing element 413 between cylinder fixed seat 412 and lower rubber cylinder fixed seat 417, and steel band bone is set with sealing cylinder 413
Frame 414, the outer round surface vulcanization of steel belt framework 414 is fixed with cartridge 415, the cylindrical and lower shield of lower rubber cylinder fixed seat 417
The upper end connection of set 416, the lower end of lower jacket 416 is threadedly coupled with slip cap 418, and the interior circular groove of slip cap 418 is built with close
Seal 419.
The assembling process of the first long packing element packer 4.1 of the present invention is：
First adapter sleeve 404 is set with from the top of central tube 402, then top connection 401 is threadedly coupled with central tube 402,
Deblocking shear pin 403 is screwed in behind alignment adapter sleeve 404 and the shear pin hole of top connection 401；O-ring 406 is first loaded into connector 405
, from the bottom of central tube 402 be set with connector 405 again then and be threadedly coupled with adapter sleeve 404 by interior groove；Rubber cap-like outer cover for closure 407
Cure on piston switch 408, sealing ring is first loaded onto inside piston switch 408 and then from the bottom of central tube 402 suit, it is stagnant
Afterwards again successively from the bottom of central tube 402 suit back-moving spring 409, spring socket sleeve 401, and by spring socket sleeve 401 and connector 405
Threaded connection, now completes upper part and installs.
First by steel belt framework 414 (typically about 100 or so) in sequence one by one cylindric frock (with set packing element
413 grade external diameters) cylindrical place arrange blend rubber bar binding, then welded at two ends；Packing element 413 will be set (not cold
But) in upper packing element fixed seat 412 and lower rubber cylinder fixed seat 417,414 sets of the steel belt framework that then will be welded loads to be sat for vulcanization
Sealing cylinder 413, finally again respectively by upper jacket 411 and upper packing element fixed seat 412, lower jacket 416 and the spiral shell of lower rubber cylinder fixed seat 417
Line is connected；Wait sets after packing element 413 is cooled down and cartridge 415 is vulcanized into position corresponding in the outer round surface of steel belt framework 414 again
Put, now complete the installation of intermediate rubber cartridge module.
Sealing ring first is loaded onto in the outer surface of ball seat 423, is then loaded to positioning step from the endoporus of lower contact 420, then
Shear pin 422 will be set to be screwed in from the hole of lower contact 420 up to withstanding in the outer surface groove of ball seat 423, lower part is now completed and installed.
Again by mounted packing element component under central tube 402 after the external screw thread root of spring socket sleeve 401 loads sealing ring
Portion is set with, and upper jacket 411 is threadedly coupled with spring socket sleeve 401；First load sealing ring in the interior circular groove of slip cap 418
419th, external screw thread root loads sealing ring, is then set with and is threadedly coupled with lower jacket 416 from the bottom of central tube 402 again；Finally
Lower contact 420 is threadedly coupled with central tube 402 and is put into steel ball from the top of central tube 402 and completes all installation processes.
Embodiment 5：
First long packing element packer 4.1 of the present invention, the second long packing element packer 4.2 use piston switch 408
It is internal to control locking (piston switch 408 is opened when tubing pressure is more than 5MPa), the gas pressure relief slot on central tube to control deblocking
Without positioning hydraulic cavities, self-locking mechanism and solution sealing mechanism etc., design is greatly reduced on the premise of electrodeless differential self-locking is realized
Difficulty of processing, while ensure that packer bulk strength, reduces later stage deblocking and salvages accident rate.
Packer of the present invention is supported and set without shaft bottom not to be influenceed by casing coupling, is capable of achieving to appoint in pit shaft
Meaning position sets, unseals, pit shaft strong adaptability；The packer has been broken every adopting class packer " sealing unit+card first simultaneously
Watt " design routine, employ after setting packing element sealing surface (can reach more than 1m) long carries out grappling with sleeve friction power, goes
The slips of bit freezing risk is easily caused when having fallen deblocking, potential safety hazard is eliminated from design source, significantly reduced deblocking and beat
Risk is dragged for, working procedure is simplified, efficiency of construction is improve.
Embodiment 6：
On the basis of embodiment 1, oil field of the present invention may be designed as (from top to bottom) every excavating technology tubing string：Oil pipe
Some 4.1+ pipe 5+ tail pipes 6+ of+the first long packing element packer of 1+ oil well pump 2+ overcurrent-overvoltage standing valve 3+ oil pipes extremely stifled 7；According to
The run-down position of sleeve pipe and can set packer effectively set section and calculate and decide tubing length, it is ensured that long packing element packer 4 is sat
It is encapsulated in specified location.Described oil well pump 2 is directly connected to overcurrent-overvoltage standing valve 3, after spacer tubing again with the first long packing element type
Packer 4.1 is connected, and described tail pipe 6 is generally 3~4 oil pipes.
The operation process of the process pipe string is following (with 51/2As a example by the broken well construction of the set of 〞 oil pipe completions)：
1st, connection and under enter process pipe string
Carry out engineering log first, determine the run-down position of sleeve pipe and can set packer effectively set section, then calculate
And decide tubing length, it is ensured that long packing element packer 4 is set in specified location.Then using 118mm gauguste cutters drifting to packing
Below device setting position at 20m~30m, by accompanying drawing 1 connect and under enter process pipe string to design attitude.
2nd, set packer
Connection pump truck is suppressed from oil pipe, when pressurization reaches 5MPa, the quilt of piston switch 408 in long packing element packer 4
Hydraulic coupling promotes compression reseting spring 409 to move downward, while Rubber cap-like outer cover for closure 407 also leaves taper hole slot with piston switch 408,
Liquid passes sequentially through piston switch 408 and enters middle with the gap of central tube 402 with the gap of spring socket sleeve 410 and spring socket sleeve 410
Packing element component, causes and sets packing element 413, steel belt framework 414, cartridge 415 bulging together, then drive lower jacket 416, under
The constantly sliding upwards of packing element fixed seat 417, slip cap 418；As the cartridge 415 that gradually rises of pressure constantly expands finally
It is close to internal surface of sleeve pipe, completes to set when pressure reaches 10MPa；Now continue to improve pressure, set when pressure is to 15MPa and cut
Nail 422 is cut, and steel ball 421 and ball seat 423 fall into tail pipe, now the reduction of oil pipe instantaneous pressure, shows that instrument sets and will completely
Oil jacket annular space is completely separated in setting position.
3rd, it is normal to recover the oil
Lower oil well pump, sucker rod simultaneously touch pump, and now the pole cap 301 of overcurrent-overvoltage standing valve 3 is collided descending compressing positioning
Snap 302 bounces back, and now pole cap 301, push rod 303 of pushing the ball, normal dog 302 are descending together until the lower surface of pole cap 301 connects
The upper blind bore end face of standing valve top connection 305 is touched, normal dog 302 enters the lower channel of the upper blind bore of standing valve top connection 305
Interior, push rod 303 of pushing the ball in the process promotes valve ball 307 to press off ball-handling snap 308 and falls into valve after being contacted with valve ball 307
On seat 310, now overcurrent-overvoltage standing valve 3 is equivalent to conventional standing valve.Can start just after production wellhead and oil pumper are installed
Often recover the oil, the oil of bottom oil layer is plucked out of after passing through the design long packing element packer 4 into oil pipe through eye pipe 5 into oil well pump 2.
4th, pump or salvaging are examined
When needing inspection pump or salvaging, oil pumper and production wellhead are laid down, act sucker rod, then above carried flow string and first cut
The disconnected deblocking of long packing element packer 4 shear pin 403, then proceedes to propose now top connection 401, central tube 402 and constantly moves up, when
The bottom gas pressure relief slot of central tube 402 is by sealing ring 419 and enters intermediate rubber cartridge module internal pressure after slip cap walks endoporus 418 times
Laid down, set packing element 413, steel belt framework 414, cartridge 415 and bounce back together, when the outer surface of upper step of central tube 402
When operation is at the interior step of adapter sleeve 404, drive adapter sleeve 404, connector 405, spring socket sleeve 410, back-moving spring 409,
Piston switch 408, Rubber cap-like outer cover for closure 407, upper jacket 411, upper packing element fixed seat 412, set packing element 413, steel belt framework 414, close
Sealing cylinder 415, lower jacket 416, lower rubber cylinder fixed seat 417, slip cap 418 are up together, realize deblocking packer overall process,
The design long packing element packer 4.1 is risen with whole process pipe string, completes inspection pump or fishing.
Described long packing element packer 4.1 is designed below oil well pump 2, can meet the technological requirement under above adopting.
Embodiment 7：
On the basis of embodiment 2, oil field of the present invention may be designed as (from top to bottom) every excavating technology tubing string：Oil pipe
1+ the second long packing element packer 4.2+ oil pipes are some+and oil well pump 2+ blowout control drips+eye pipe 5+ tail pipes 6+ extremely stifled 7, removes described
The first long packing element packer 4.1 inside steel ball 421, set the second described long packing element type be after shear pin 422, ball seat 423
Packer 4.2；According to the run-down position of sleeve pipe and can set packer effectively set section and calculate and decide tubing length, it is ensured that it is long
Tubing Packer 4 is set in specified location.Described oil pipe 1 is directly connected to the second long packing element packer 4.2, if interval drier oil
Guan Houzai is connected with oil well pump 2.
The second described long packing element packer 4.2 is designed in the top of oil well pump 2, can meet the technological requirement adopted under.
Claims (10)
1. a kind of oil field is every excavating technology tubing string, including the oil pipe (1), oil well pump (2), tail pipe (6), dead being sequentially connected from top to bottom
Stifled (7), it is characterised in that：Overcurrent-overvoltage is also connected with turn from top to bottom between described oil well pump (2) and tail pipe (6) to fix
Valve (3), the first long packing element packer (4.1) and eye pipe (5).
2. a kind of oil field is every excavating technology tubing string, including the oil pipe (1), oil well pump (2), tail pipe (6), dead being sequentially connected from top to bottom
Stifled (7), it is characterised in that：Described oil pipe (1) and oil well pump (2) is connected with the second long packing element packer (4.2), oil well pump
(2) blowout control drip and eye pipe (5) are connected with turn from top to bottom and tail pipe (6) between.
3. a kind of oil field according to claim 1 is every excavating technology tubing string, it is characterised in that：Described overcurrent-overvoltage standing valve
(3) push the ball mechanism, draining pin (304), standing valve top connection (305), standing valve center tap (306), valve ball are at least included
(307), ball-handling snap (308), valve cover body (309), valve seat (310) and standing valve lower contact (311) composition, described consolidates
Determine to be connected with the top of valve center tap (306) and be connected with fixation with standing valve top connection (305), standing valve center tap (306) bottom
Valve lower contact (311), mechanism of pushing the ball is provided with the cavity of standing valve top connection (305), and fixation is extended on mechanism top of pushing the ball
Valve top connection (305) top, is provided with valve ball (307) in standing valve center tap (306), valve ball (307) is locked by controlling ball
Spring (308) is fixed on valve cover body (309) top, and valve cover body (309) bottom is provided with valve seat (310), valve ball (307)
Diameter be less than valve cover body (309) internal diameter, and more than valve seat (310) middle through-hole internal diameter, standing valve top connection (305)
Inside top is provided with blind hole, and standing valve top connection (305) middle part side is additionally provided with connection standing valve top connection (305) interior exocoel
The oil leak hole of body, oil leak hole is blocked by draining pin (304).
4. a kind of oil field according to claim 3 is every excavating technology tubing string, it is characterised in that：Described mechanism of pushing the ball is by pole cap
(301), normal dog (302) and push rod of pushing the ball (303) are constituted, and push rod of pushing the ball (303) is placed in the chamber of standing valve top connection (305)
In body, push rod of pushing the ball (303) is connected by the external screw thread on the outside of top with the internal thread of pole cap (301) bottom inside, pole cap
(301) bottom outside is provided with normal dog (302).
5. a kind of oil field according to claim 3 is every excavating technology tubing string, it is characterised in that：Described standing valve center tap
(306) lower end inner wall has an internal thread, and the upper end outer wall of standing valve lower contact (311) has an external screw thread, standing valve center tap (306) with
Standing valve lower contact (311) is connected through a screw thread, and standing valve lower contact (311) upper end inwall has internal thread, valve cover body (309)
It is connected with the internal thread of standing valve lower contact (311) upper end inwall by the external screw thread of its outer wall, standing valve lower contact (311)
Upper end internal thread lower section has the step of clamping valve seat (310), and valve seat (310) is connected to standing valve lower contact (311)
Between upper end internal thread and step.
6. a kind of oil field according to claim 1 is every excavating technology tubing string, it is characterised in that：Described the first long packing element type packing
Device (4.1) at least include top connection (401), central tube (402), adapter sleeve (404), connector (405), piston switch (408),
Spring socket sleeve (410), intermediate rubber cartridge module, slip cap (418), lower contact (420), steel ball (421), set shear pin (422) and
Ball seat (423), the upper end of described central tube (402) has been connected through a screw thread top connection (401), the lower end of central tube (402)
Lower contact (420) has been connected through a screw thread, adapter sleeve (404), connector has been socketed with central tube (402) successively from top to bottom
(405), spring socket sleeve (410), intermediate rubber cartridge module and slip cap (418), the upper end of adapter sleeve (404) is by unsealing shear pin
(403) it is connected with top connection (401), the lower end of adapter sleeve (404) is connected with connector (405) upper end periphery, connector
(405) lower end inner headed face is connected with piston switch (408), and connector (405) lower end periphery is upper with spring socket sleeve (410)
End inner headed face threaded connection, vulcanization has Rubber cap-like outer cover for closure (407), the inside of piston switch (408) on described piston switch (408)
Equipped with sealing ring, back-moving spring (409), spring socket sleeve (410) are clamped between piston switch (408) and spring socket sleeve (410)
Lower end be connected with intermediate rubber cartridge module upper end, the lower end of intermediate rubber cartridge module is connected with slip cap (418), lower contact (420)
Positioning step is inside provided with, described ball seat (423) is fixed at described positioning step by setting shear pin (422), ball seat
(423) steel ball (421) is provided with.
7. a kind of oil field according to claim 2 is every excavating technology tubing string, it is characterised in that：Described the second long packing element type packing
Device (4.2) at least include top connection (401), central tube (402), adapter sleeve (404), connector (405), piston switch (408),
Spring socket sleeve (410), intermediate rubber cartridge module, slip cap (418) and lower contact (420), the upper end of described central tube (402) lead to
Cross and be threaded with top connection (401), the lower end of central tube (402) has been connected through a screw thread lower contact (420), central tube
(402) be socketed with successively from top to bottom on adapter sleeve (404), connector (405), spring socket sleeve (410), intermediate rubber cartridge module and
Slip cap (418), the upper end of adapter sleeve (404) is connected by unsealing shear pin (403) with top connection (401), adapter sleeve (404)
Lower end is connected with connector (405) upper end periphery, and connector (405) lower end inner headed face is connected with piston switch (408), even
Joint (405) lower end periphery is threadedly coupled with the upper end inner headed face of spring socket sleeve (410), on described piston switch (408)
The inside that vulcanization has Rubber cap-like outer cover for closure (407), piston switch (408) is equipped with sealing ring, piston switch (408) and spring socket sleeve
(410) back-moving spring (409) is clamped between, the lower end of spring socket sleeve (410) is connected with intermediate rubber cartridge module upper end, intermediate rubber
The lower end of cartridge module is connected with slip cap (418).
8. a kind of oil field according to claim 6 or 7 is every excavating technology tubing string, it is characterised in that：Described middle packing element group
Part includes upper jacket (411), upper packing element fixed seat (412), sets packing element (413), lower jacket (416) and lower rubber cylinder fixed seat
(417), the upper end of described upper jacket (411) is threadedly coupled with spring socket sleeve (410), the lower end of upper jacket (411) and gluing
Cylinder fixed seat (412) threaded connection, vulcanization is fixed with and sets between upper packing element fixed seat (412) and lower rubber cylinder fixed seat (417)
Packing element (413), is set with steel belt framework (414) in sealing cylinder (413), the outer round surface vulcanization of steel belt framework (414) is fixed with
Cartridge (415), the upper end of the cylindrical and lower jacket (416) of lower rubber cylinder fixed seat (417) is connected, under lower jacket (416)
End is threadedly coupled with slip cap (418), and the interior circular groove of slip cap (418) is built with sealing ring (419).
9. a kind of oil field according to claim 1 is every excavating technology tubing string, it is characterised in that：Described oil well pump (2) and mistake
Flow through pressure standing valve (3) to be directly connected to, be connected with the first long packing element packer (4.1) again after spacer tubing, described tail pipe (6)
Generally 3~4 oil pipes.
10. a kind of oil field according to claim 2 is every excavating technology tubing string, it is characterised in that：Described oil pipe (1) and second
Long packing element packer (4.2) is directly connected to, and is connected with oil well pump (2) again after being spaced some oil pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611206494.4A CN106761577A (en) | 2016-12-23 | 2016-12-23 | Oil field separates adopts technology tubular column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611206494.4A CN106761577A (en) | 2016-12-23 | 2016-12-23 | Oil field separates adopts technology tubular column |
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| Publication Number | Publication Date |
|---|---|
| CN106761577A true CN106761577A (en) | 2017-05-31 |
Family
ID=58919766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611206494.4A Pending CN106761577A (en) | 2016-12-23 | 2016-12-23 | Oil field separates adopts technology tubular column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106761577A (en) |
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| CN107013190A (en) * | 2017-06-03 | 2017-08-04 | 中国石油化工股份有限公司 | Steam flooding well flow string and implementation |
| CN109854201A (en) * | 2019-04-01 | 2019-06-07 | 华鼎鸿基石油工程技术(北京)有限公司 | One kind is every adopting packer and every adopting construction method |
| CN110735607A (en) * | 2019-12-02 | 2020-01-31 | 延长油田股份有限公司南泥湾采油厂 | A kind of oil well pump cross bridge pressure setting packer device and application method |
| CN112283361A (en) * | 2020-11-21 | 2021-01-29 | 阜宁县石油机械有限公司 | Oil drainage overpressure fixed valve |
| CN112761596A (en) * | 2021-01-13 | 2021-05-07 | 孙伟峰 | Pressure guide structure of pump |
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| CN112761596A (en) * | 2021-01-13 | 2021-05-07 | 孙伟峰 | Pressure guide structure of pump |
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