CN105804679B - Continuously circulating water horizontal well wellbore treatments process pipe string device is realized using plain tubing - Google Patents
Continuously circulating water horizontal well wellbore treatments process pipe string device is realized using plain tubing Download PDFInfo
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- CN105804679B CN105804679B CN201610310099.4A CN201610310099A CN105804679B CN 105804679 B CN105804679 B CN 105804679B CN 201610310099 A CN201610310099 A CN 201610310099A CN 105804679 B CN105804679 B CN 105804679B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 238000011282 treatment Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000008569 process Effects 0.000 title claims abstract description 9
- 239000004576 sand Substances 0.000 claims abstract description 63
- 238000005406 washing Methods 0.000 claims abstract description 18
- 238000007790 scraping Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims description 26
- 239000012530 fluid Substances 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 238000013461 design Methods 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000001727 in vivo Methods 0.000 claims 1
- 238000004080 punching Methods 0.000 claims 1
- 230000004087 circulation Effects 0.000 abstract description 25
- 238000010276 construction Methods 0.000 abstract description 9
- 238000005086 pumping Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010959 steel Substances 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/10—Valve arrangements in drilling-fluid circulation systems
- E21B21/106—Valve arrangements outside the borehole, e.g. kelly valves
-
- 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
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/02—Scrapers specially adapted therefor
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Cyclones (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to a kind of technology corollary apparatus established using oil field plain tubing and continuously circulated, play a significant role in horizontal well wellbore treatments neighborhood.I.e. one kind realizes continuously circulating water horizontal well wellbore treatments process pipe string device using plain tubing.It include hydraulic self-control commutation well head, hydraulic self-control commutation well head centrally through reversal valve, supporting connection broken sand scraping cyclone sand washing device and hydraulic self-control commutation well head on rotary hose plug-in quick connector.Utilize plain tubing, pass through the ingenious cooperation of commutate well head and reversal valve, when making up a joint can auto-changing circulation canal, create the execution conditions without termination of pumping, continuously circulated, it is particularly suitable for the various construction needs for needing continuously to circulate of horizontal well wellbore treatments, while being inherently eliminated net horizontal section and burying card tubing string risk, significantly simplify operation procedure, reduce labor intensity, construction efficiency is improved, reduces construction cost.
Description
Technical field
The present invention relates to one kind can utilize oil field plain tubing to establish continuous circulation（It is positive, reverse）Technology
Corollary apparatus, plays a significant role in horizontal well wellbore treatments neighborhood.I.e. one kind realizes that continuously circulating water is put down using plain tubing
Well shaft treatment process tubular column unit.
Background technology
Important technical of the horizontal well as extra-low-permeability reservoir and development late stage agent for improving oilfield recovery, in China
Each oil field is promoted rapidly, however, also exactly because the own structural characteristics and productive prospecting of horizontal well determine, more perforations
The horizontal well of section, during extraction, pressure break burning into sand easily goes out with production liquation, is deposited on net horizontal section, forms very long sand bridge,
Even sand buries whole tubing string, and some can also form hard cementing sand bridge in the multiple factor effect such as well liquid, temperature, pressure；Separately
Outside, couch in net horizontal section flow string in borehole wall lower end, stress form changes, frictional resistance increases, the contracting of object settling height
These short etc. factors all easily cause tubing string to meet card or buried by sand, and accident as processing is complicated more than Vertical Well, difficulty is controlled
It is more.
The tool tubular column that domestic each oil field uses at present is based on plain tubing, with plain tubing sand washing or link screw rod
Drilling tool bores grinding card, and elemental operation program is torn open by root（Connect）Rise（Put）, routine work rule is to tear open（Connect）It must stop when single
Pump, it is impossible to continuous circulation, not only complicated, efficiency and its low, it is often more important that be faced with suspended matter secondary precipitation card and bury
Therefore the great risk of tubing string, usually causes wellbore treatments to become more sophisticated, severeer, so, realize that plain tubing is established and connect
Continuous circulation, it has also become improve the key problem in technology of horizontal well wellbore treatments.
The content of the invention
The purpose of the present invention is provide one kind for above-mentioned deficiency and realize continuously circulating water horizontal well well using plain tubing
Cylinder treatment process tubular column unit, i.e., using conventional plain tubing, create it is a kind of when well head connection is single can auto-changing follow
Ring passage, realizes the corollary apparatus of the specific function without termination of pumping, continuously circulated.
The present invention technical solution be：One kind realizes continuously circulating water horizontal well wellbore treatments technique using plain tubing
Tubular column unit, it is characterised in that including hydraulic self-control commutation well head, hydraulic self-control commutation well head centrally through reversal valve,
Rotary hose plug-in quick connector on broken sand scraping cyclone sand washing device and hydraulic self-control the commutation well head of supporting connection.
The plain tubing continuously circulates reversal valve and is equipped with what is matched with sand-flushing pipe column including central tube upper and lower ends
Top connection and lower contact, center tubes are interior to be equipped with one section of stifled body（Make to penetrate through in pipe）, stifled body both ends have upper and lower mistake
Liquid window；Be set with outside central tube both ends band sealing, middle concave is empty, can allow center pipe plug body connect up and down or the sliding sleeve of partition and
Support the Rectangular Spring and spring socket sleeve of the sliding sleeve.
Described hydraulic self-control commutation well head is made of two parts, the well head main cylinder first, hydraulic self-control commutates, inside it
Equipped with upper and lower seal rubber sleeve, coordinate with circulation pipe string, two liquid in-outs of A, C are built into while realizing that Seal Oil covers annular space
Circulation canal, the male joint with connection A, C pipeloop on the well head main cylinder wall of respective channel, upper and lower seal rubber sleeve
For hydraulic packing form, there is hydraulic pressure water injection interface on the well head main cylinder wall of each corresponding seal rubber sleeve, pass through three direct bank remittance services
Integrate as hydraulic pressure water injection interface, be connected with high-pressure rubber pipe with circulation water filling port, pressure fluid is provided by pump truck；Second, hydraulic self-control changes
To well head voltage stabilizing buffer, including liquid inlet and outlet interface, hydro-cushion piston is housed in fluid cylinder, piston is supported by support spring, can
The seal pressure of setting well head is adjusted by adjusting rod and pressure gauge；Relief valve is used for suppressing pump or pump truck pressure is larger running into
Automatic drainage is depressured during fluctuation situation, to protect equipment not to be damaged.
The broken sand scraping cyclone sand washing device includes the spiral skiving blade band of Surface hardening treatment, reasonable size is arranged in pairs or groups
Eddy flow restraint slot, the broken sand shovel of duckbilled form containing cross head design of paving weldering hard alloy and compound grate sand cover.
The rotary hose plug-in quick connector include inside stud with sealing ring the main body of inserting hermetically sealed connector,
Locking steelball, locking set, support spring and the interior unidirectional valve valve group set.
The present invention relates to three big subject contents：1st, using conventional plain tubing, create a kind of in well head connection（Or dismounting）
When single can auto-changing circulation canal, realize the corollary apparatus of the specific function without termination of pumping, continuously circulated；2nd, have compared with
Height crushes cementing sand bridge, cleaning tube wall ability and sand washing, the broken sand scraping cyclone sand washing device of sand carrying effect；3rd, can be significantly simple
Change operation procedure, reduce labor intensity, improve the plug-in quick connector of construction efficiency.
It is an advantage of the invention that：
1st, using plain tubing, by the ingenious cooperation of commutate well head and reversal valve, when making up a joint can auto-changing follow
Ring passage, creates without termination of pumping, continuous circulation（It is positive, reverse）Execution conditions, be particularly suitable at horizontal well pit shaft
The various construction needs for needing continuously to circulate are managed, while being inherently eliminated net horizontal section and burying card tubing string risk, significantly
Simplify operation procedure, reduce labor intensity, improve construction efficiency, reduce construction cost.
2nd, for sand washing operation, when running into hard cementing sand bridge, sand bridge can effectively be crushed, and by the bur on tube wall
Thorough scraping is removed clean.
3rd, operation is ground for screw rod pump drill, brill can be made to grind effect and improve more than 3 times.
Brief description of the drawings
Fig. 1 is that plain tubing continuous circulation process tubing string of the present invention assembles schematic diagram.
Fig. 2 is hydraulic self-control commutation well head and reversal valve fit structure schematic diagram.
Fig. 3 is hydraulic self-control commutation shaft collar schematic diagram.
Fig. 4 is structure of reversing valve schematic diagram.
Fig. 5 is hydraulic self-control voltage stabilizing buffer structure figure.
Fig. 6 is broken sand scraping cyclone sand washing device structure chart.
Fig. 7 is plug-in rotary hose quick connector structure chart.
Fig. 8 is Fig. 3 contour structures schematic diagrams.
Embodiment
It is as follows referring to Fig. 1, parts title：Well head top connection 4, well head lower contact 6, ring flange 15, casing 21, elevator
28, rotary hose 43, rotary hose plug-in quick connector 45, hydraulic self-control commutation well head 46, breaks sand scraping cyclone sand washing device 47,
Oil pipe 49.
One kind realizes that continuously circulating water horizontal well wellbore treatments process pipe string device, including hydraulic self-control change using plain tubing
Plain tubing to well head 46 and through 46 center of hydraulic self-control commutation well head continuously circulates reversal valve 42.Hydraulic self-control commutation well
46 upper end water receiving tengential belt plug-in quick connectors 45 of mouth, the broken sand scraping cyclone sand washing device of 46 times terminations of hydraulic self-control commutation well head
47.It is automatic when making up a joint using conventional plain tubing, the ingenious cooperation of commutated by hydraulic self-control well head 46 and reversal valve 42
Circulation canal is converted, without termination of pumping, realizes continuous circulation（It is reversely or positive）, routinely followed from eliminating plain tubing in sheet
A variety of drawbacks of ring.
Referring to Fig. 1-3,8, parts title is as follows：Referring to Fig. 1, well head top connection 4, well head lower contact 6, ring flange 15,
Casing 21, elevator 28, rotary hose 43, rotary hose plug-in quick connector 45, hydraulic self-control commutation well head 46, breaks sand scraping rotation
Flow sand washing machine 47, oil pipe 49.Referring to Fig. 2, main cylinder 1, gum cover 2, annular space 3, well head top connection 4, hydraulic pressure water injection interface 5, center
Pipe 7, ring flange 15, elevator 28.Referring to Fig. 3, gum cover 2, annular space 3, well head top connection 4, ring flange 15, gland 16, splicing sleeve 17,
Liquid-passing hole 18, cover for seat 19, spacer ring 29.It is as follows referring to Fig. 8, parts title：Main cylinder 1, well head top connection 4, hydraulic pressure water filling connect
Mouth 5, ring flange 15, pressure regulation bar 36, pressure gauge 38.
Hydraulic self-control commutation well head 46 includes main cylinder 1, main cylinder 1 be lined between the upper and lower every seal rubber sleeve 2, gum cover 2
There is annular space 3 between 1 wall of main cylinder, have between two gum covers 2 on corresponding 1 side wall of main cylinder and connect on the well head communicated with the external world
First 4, there is the hydraulic pressure water injection interface 5 communicated with gum cover annular space 3 on 1 side wall of main cylinder, have and its interior phase on 1 bottom pipeline of main cylinder
Logical well head lower contact 6,1 bottom of main cylinder carry the ring flange 15 being connected with well head.2 both ends of gum cover carry metal backup shoe 16,
3 face of gum cover annular space is lined with I-shaped splicing sleeve 17, and liquid window 18 was carried on splicing sleeve 17.
Hydraulic self-control commutation well head 46 is to realize second key matching component that plain tubing not termination of pumping continuously circulates.It
It is made of two parts：First is hydraulic self-control commutation well head main cylinder 1, its inside is equipped with upper and lower seal rubber sleeve 2, with circulation pipe
Column coordinates, and two liquid in-out circulation canals of A, C, the main cylinder of well head of respective channel are built into while realizing that Seal Oil covers annular space
Pin thread well head top connection 4, well head lower contact 6 with connection pipeloop on body wall.Upper and lower seal rubber sleeve 2 is hydraulic packing
Form, has hydraulic pressure water injection interface on 1 wall of well head main cylinder of each corresponding seal rubber sleeve 2, is collected by threeway for one
Hydraulic pressure water injection interface 5, is connected, pressure fluid is provided by pump truck with high-pressure rubber pipe with hydraulic pressure water injection interface 5.Second is hydraulic self-control
Commutate well head voltage stabilizing buffer（See Fig. 5）, cylinder body 34 is entered by inlet 53 by the band press liquid that circulation liquid injection port is introduced, is passed through
Liquid outlet 54 is injected separately into the hydraulic pressure ring control of commutation well head upper-lower seal gum cover, and compression gum cover embraces circulation pipe string, closes oil jacket
Annular space.The size of sealing pressure is set by pressure regulation bar 36, pressure gauge 38 and support spring 37.When rise put tubing string cross box cupling by
Cause small-scale pressure oscillation in the change of outside diameter, by 35 steady pressure of dummy piston, when chance suppresses pump or pump truck pressure is dashed forward
When so increasing to over setting pressure values, relief valve 39 can brake discharge opeing pressure release, to protect seal not to be damaged.Have on fluid cylinder 34
Inlet 53, liquid outlet 54.
Referring to Fig. 1,4, parts title is as follows：Parts title is as follows：Well head top connection 4, well head lower contact 6, flange
Disk 15, casing 21, elevator 28, rotary hose 43, rotary hose plug-in quick connector 45, hydraulic self-control commutation well head 46, breaks sand
Scraping cyclone sand washing device 47, oil pipe 49.Central tube 7, upper and lower connector 8,9, blocks up body 10, crosses liquid window 11, spring 12, sliding sleeve
13, cross pendular ring sky 14, cover for seat 19.
Reversal valve 42 includes central tube 7, the upper and lower connector 8,9 of band connection oil pipe on central tube 7；Have one in central tube 7
The stifled body 10 of section, blocking up on the tube wall of 10 both sides of body circumferentially has multiple liquid windows 11 excessively（Window）；Central tube is cased with bullet on 7 outer surface
The sliding sleeve 13 that spring 12 and one section of both ends for being cased with being abutted against with spring 12 all seal, sliding sleeve 13 and central tube had between 7 outer surface
Pendular ring sky 14, spring 12 carry cover for seat 19；There is sealing fluid injection pipe fitting on hydraulic self-control commutation well head 46.
Reversal valve 42 is to realize plain tubing not termination of pumping, first continuously circulated key matching component, its central tube 7
Upper and lower ends are equipped with the upper and lower connector 8,9 to match with sand-flushing pipe column, and one section of stifled body 10 is equipped with 7 body of central tube（Make in pipe
It cannot penetrate through）, stifled 10 both ends of body have upper and lower liquid window 11 excessively（Window）；Be set with outside central tube 7 both ends band sealing,
Middle concave is empty, and center pipe plug body can be allowed to connect up and down or the sliding sleeve 13 of partition and the Rectangular Spring 12 and spring base that support the sliding sleeve
Set 19.When sliding sleeve 13 acts on from external force, under the action of support spring 12, the sealing at 13 both ends of sliding sleeve is just blocked in
The outer end of dropping window on heart pipe plug body, liquid can be around 10 up/down perforation of stifled body at this time.When sliding sleeve 13 is subject to lifting force to compress
Spring 12 and uplink, 13 times sealings of sliding sleeve are just blocked in corresponding 10 position of center pipe plug body（Position between upper dropping window）When,
While isolated around the outer collarette control passage of center pipe plug body 10,10 dropping window of stifled body is open to be connected with outside pipe, works as releasing
To sliding sleeve 13 when above pushing away active force, under the action of support spring 12,13 return of sliding sleeve recovers through windowing around stifled again
Circulation in the pipe of body 10.
The circulation approach of liquid during rising, put tubing string：From outer before reversal valve 42 does not enter into commutation well head
In the case of power effect, reversal valve sliding sleeve 13 blocks under the support of spring 12 and crosses the outer of liquid window 11 up and down in center pipe plug body
End, inside are built into the peripheral channel that can bypass stifled body 10, and liquid can bypass stifled body 10 by upper and lower windowing 11 at this time, up and down
Perforation, A-B circulation canals are formed with ground rotary hose.
Prepare connection when reversal valve 42 is transferred and is sat on wellhead lifting-clamping（Or dismounting）When single, the sliding sleeve 13 of reversal valve
Moved up by pushes compression springs 12 on seal rubber sleeve on commutation well head, just card is enclosed in center pipe plug body both ends to the sealing of 13 lower end of sliding sleeve
Between windowing 11, while center pipe plug body upper end 11 passage of windowing is disconnected, open center pipe plug body lower end window 11 is just
The good well head pipeloop interface between two seal rubber sleeve 2 of well head that commutates is corresponding to be penetrated through, by original rotary hose circulation canal
It is automatically converted to well head A-C circulation canals to continue circulation, reversal valve blocks up window on body 10 and disconnected water source at this time, can put safely
Heart connects（Unload）It is single.
Connect（Unload）It is complete it is single after continue to carry, put tubing string, after reversal valve sliding sleeve 13 is by seal rubber sleeve 2 under the well head that commutates, solution
Except gum cover 2 can under spring force automatically reset and be connected with rotary hose 43 to the active force of sliding sleeve 13, sliding sleeve 13, again
Recover A-B circulations.Often connect（Dismounting）It is single to act in this way, continuously circulated so as to achieve the purpose that not termination of pumping is realized.
It is as follows referring to Fig. 5, parts title：Voltage stabilizing buffer 33, fluid cylinder 34, hydro-cushion piston 35, pressure regulation bar 36, branch
Support spring 37, pressure gauge 38, relief valve 39, inlet 53, liquid outlet 54.
Voltage stabilizing buffer 33 is carried on sealing fluid injection pipe fitting, voltage stabilizing buffer 33 includes fluid cylinder 34, is equipped with fluid cylinder 34
Hydro-cushion piston 35,35 left end of hydro-cushion piston are connected with the pressure regulation bar 36 for stretching out fluid cylinder 34, and piston 35 is by support spring
37 supports connect, and have pressure gauge 38, relief valve 39 on fluid cylinder 34.
It is as follows referring to Fig. 6, parts title：Oblique fire liquid outlet 20, top connection 22, skiving blade band 23, eddy flow restraint slot 24,
Grate sand cover 25, breaks sand shovel 26, hard alloy 27.
15 connecting sleeve 21 of ring flange, the broken sand scraping cyclone sand washing device 47 of the connection of casing 21；Broken sand scraping cyclone sand washing device
47 include top connection 22 connected in sequence, helical form skiving blade band 23 and eddy flow restraint slot 24, grate sand cover 25, broken sand shovel 26.It is broken
Sand shovels 26 lower ends and breaks sand shovel containing cross-head type for duckbilled, and interior is taper, and surface paving welds hard alloy 27.Grate sand cover 25 is shell-like,
Oblique fire liquid outlet 20 is separated between having multiple tracks circumferentially.More for horizontal well perforation section, it is serious that oil reservoir spits sand, in addition by well liquid into
Divide, the effect of temperature, pressure, very long and hard cementing sand bridge is easily formed in net horizontal section, hinders sand-flushing pipe column to pass through
This problem, devises the broken sand scraping cyclone sand washing device 47 for integrating brokenly the various functions such as sand, scraping, swirl injection.
The left end that cyclone sand washing device 47 includes be the top connection 22 that is connected with circulation pipe string, maximum diameter it is cylindrical spread all over by
The helical form skiving blade band 23 of Surface hardening treatment, can play the role of scraper any bur on casing wall is thorough
Remove clean.Due to gap very little between skiving blade band 23 and casing wall, with skiving blade band 23 with raw eddy flow restraint slot 24（Spiral shell
Revolve groove）The huge discharge sand cleaning fluid that high pressure is injected can be made in order and rush at shaft bottom for rotating high pressure cyclone in one direction, with sinking
Sand takes it out pit shaft after being sufficiently stirred.Duckbilled is equipped with the right end of sand washing machine and breaks sand shovel 26 containing cross-head type, breaks sand shovel surface
Paving weldering hard alloy 27, has the function of the drawbacks of good positioning smashs to pieces, overcomes beveled tip to lie prone along slope.In broken sand shovel 26 and skiving blade
Reacting cycle import position is equipped with grate sand cover 25 between band 23, and grate sand cover 25 is shell-like, is separated between having multiple tracks circumferentially and slants out liquid
Mouth 20, further to crush, can prevent lump from entering and blocks circulation canal by larger object every keeping away outside.
It is as follows referring to Fig. 7, parts title：Locking steelball 30, valve group support spring 31, unidirectional valve valve group 32, main set
Body 40, locking set 41, Lock spring 55.
46 upper end of hydraulic self-control commutation well head is connected with rotary hose plug-in quick connector 45, and rotary hose plug-in is quick
Connector 45 includes the main body 40 of inserting hermetically sealed connector that inside studs with sealing ring, and locking set is connected outside main 40 right end of body
41, equipped with a locking steelball 30 for enclosing retractable and in main 40 inner surface of body dew between locking set 41 and main body 40
Go out, main body 40 is internally provided with unidirectional valve valve group 32, unidirectional valve valve group 32 is supported with valve group support spring 31, for blocking
43 withdrawing fluid of rotary hose, main 40 left end water receiving tengential belt 43 of body.Connect for plain tubing（Unload）It is single again and again to pound
Oily nonyl, handling short circuit this troublesome operation process, design one kind can significantly simplify procedures, and reduce labor intensity, improve
Work efficiency, cuts down the plug-in quick connector of construction cost.Referring to Fig. 7, rotary hose plug-in quick connector：Rotary hose
45 left end of plug-in quick connector is the oily nonyl connector 44 of oily nonyl form, for connecting rotary hose 43.Right end is for connection to
The sealing locking set 41 of reversal valve box cupling（Or locking set）, in locking of the lower end of locking set 41 equipped with a circle retractable
Steel ball 30, to falling into after connecting or just in the lock slots of reversal valve 42, is covering 41 Hes with reversal valve 42 by the locking of outside
Lock spring 55 is locked or unlocked to constrain it, and unidirectional valve valve group is internally provided with oily nonyl connector 44, and bullet is supported with valve group
Spring 31 supports unidirectional valve valve group 32 to be used for blocking 43 withdrawing fluid of rotary hose.When connecting rotary hose 43, one is only needed to carry, one puts i.e.
Can, you can it is safe and convenient, fast, it is the critical component for improving construction efficiency.
Claims (1)
1. one kind realizes continuously circulating water horizontal well wellbore treatments process pipe string device using plain tubing, it is characterised in that including liquid
Press automatic control commutation well head（46）, hydraulic self-control commutate well head（46）Centrally through reversal valve（42）, broken sand scraping eddy flow punching
Sand device（47）, hydraulic self-control commutation well head（46）On the rotary hose plug-in quick connector that connects（45）；
The reversal valve（42）Including central tube（7）, central tube（7）Upper and lower ends are connected with top connection（8）And lower contact
（9）, central tube（7）It is equipped with one section of stifled body in vivo（10）, block up body（10）Both ends have upper and lower liquid window excessively（11）；Center
Pipe（7）Both ends band sealing, middle concave sky, the sliding sleeve that center pipe plug body can be allowed to connect or separate up and down are set with outside（13）And support
The sliding sleeve（13）Rectangular Spring（12）And spring socket sleeve（19）；
The hydraulic self-control commutation well head（46）It is made of two parts, the well head main cylinder first, hydraulic self-control commutates（1）, in it
Portion is equipped with upper and lower seal rubber sleeve（2）, the male joint with connection A, C pipeloop on the well head main cylinder wall of respective channel,
Upper and lower seal rubber sleeve（2）For hydraulic packing form, in each corresponding seal rubber sleeve（2）Well head main cylinder wall on have hydraulic pressure
Water filling port, is collected for hydraulic pressure water injection interface by threeway（5）, pressure fluid provides by pump truck；The well head second, hydraulic self-control commutates
Voltage stabilizing buffer（33）, including into liquid interface（53）, go out liquid interface（54）, fluid cylinder（34）It is interior that hydro-cushion piston is housed（35）,
Hydro-cushion piston（35）By support spring（37）Support, can pass through pressure regulation bar（36）And pressure gauge（38）To adjust setting well head
Seal pressure；Fluid cylinder（34）With relief valve（39）；
The broken sand scraping cyclone sand washing device（47）Spiral skiving blade band including Surface hardening treatment（23）, eddy flow restraint slot
（24）, paving weldering hard alloy（27）Duckbilled form containing cross head design broken sand shovel（26）With compound grate sand cover（25）；
The rotary hose plug-in quick connector（45）The main body of inserting hermetically sealed connector of sealing ring is studded with including inside
（40）, locking steelball（30）, locking set（41）, valve group support spring（31）And the interior unidirectional valve valve group set（32）.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610082975 | 2016-02-06 | ||
| CN2016100829752 | 2016-02-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105804679A CN105804679A (en) | 2016-07-27 |
| CN105804679B true CN105804679B (en) | 2018-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610310099.4A Active CN105804679B (en) | 2016-02-06 | 2016-05-12 | Continuously circulating water horizontal well wellbore treatments process pipe string device is realized using plain tubing |
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| CN (1) | CN105804679B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761549A (en) * | 2016-12-01 | 2017-05-31 | 中国石油天然气股份有限公司 | Self-balancing positive and negative bidirectional continuous circulation operation device |
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