CN110067513A - A kind of whirling vibration casing guidance tripping in tool - Google Patents
A kind of whirling vibration casing guidance tripping in tool Download PDFInfo
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- CN110067513A CN110067513A CN201810064892.XA CN201810064892A CN110067513A CN 110067513 A CN110067513 A CN 110067513A CN 201810064892 A CN201810064892 A CN 201810064892A CN 110067513 A CN110067513 A CN 110067513A
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- piston rod
- piston cylinder
- lower contact
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- 238000007789 sealing Methods 0.000 claims abstract description 77
- 239000002184 metal Substances 0.000 claims description 5
- 230000013011 mating Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000009434 installation 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/08—Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
- E21B23/10—Tools specially adapted therefor
-
- 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
- E21B28/00—Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
- E21B7/208—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes using down-hole drives
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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)
- Earth Drilling (AREA)
Abstract
The present invention relates to a kind of whirling vibration casings to guide tripping in tool, including, the outer barrel assembly that top connection, outer cylinder form after connecting with lower contact, is suspended in lower contact and guide shoe connector, guide shoe with lower contact rotatable engagement, and the drive assembly being arranged in outer barrel assembly；The drive assembly includes piston cylinder assembly, guide sleeve and piston rod；The piston rod outer wall is circumferentially successively equipped at intervals with annular piston, piston rod deflector hole, "the" shape guide groove and spline housing from top to bottom；The piston cylinder assembly is mainly sequentially connected is formed from top to bottom between outer cylinder and piston rod by upper cylinder sleeve, upper piston cylinder, middle sealing drum and piston cylinder lower contact.The present invention generates the impact vibration up and down of certain frequency by hydraulic drive piston rod, static friction is changed into dynamic friction, the resistance during casing tripping in is effectively reduced, while the rotation reaming ability of guide shoe can be improved by causing the vibration of guide shoe to reduce stratum to the torsional resistance of end guide shoe.
Description
Technical field
The present invention relates to the completion casing tripping in tools of oil-gas exploration and development field of tool, in particular to are suitable for big position
Shifting, High angle, horizontal well middle sleeve tripping in a kind of whirling vibration casing guide tripping in tool.
Background technique
At present in oil-gas exploration and development field, extended reach well, horizontal well due to well-drilling borehole frictional resistance, wellbore it is not smooth,
The reasons such as wellbore instability caused by well track part dog-leg severity is excessive, mud property is poor cause completion casing tripping in difficult,
Usual way is drifting repeatedly to be carried out before casing tripping in, but still being unable to ensure casing being capable of smooth tripping in.Have patent at present:
A kind of labyrinth casing tripping in auxiliary device of 201410619944 .7 of application number and application number 201410466167.7 are a kind of
Salvagable casing tripping in guiding tool with drifting function is respectively screw rod and the rotation of turbine drives end guide shoe, realizes set
Pipe tripping in process reaming function, the torque that the driving of above structure can be generated is smaller, excessive can not turn when rotary guide shoe is hampered
When dynamic, the rotation reaming function of realizing guide shoe will be unable to；In addition when the frictional resistance that wellbore generates tripping in casing is excessive, even if drawing
Shoes can rotate, and casing is it is possible to design well depth can not be deep to down.
Summary of the invention
Present invention aim to address above-mentioned technical problems, provide a kind of whirling vibration casing guidance tripping in tool, pass through
Hydraulic drive piston rod generates the impact vibration up and down of certain frequency, and static friction is changed into dynamic friction, is effectively reduced under casing
Resistance during entering, while can be by causing the vibration of guide shoe to reduce stratum to the torsional resistance of end guide shoe, raising is drawn
The rotation reaming ability of shoes.
To achieve the goals above, the present invention takes following technical scheme:
A kind of whirling vibration casing guidance tripping in tool, including, the outer cylinder that top connection, outer cylinder form after connecting with lower contact is total
At being suspended in lower contact and guide shoe connector, guide shoe with lower contact rotatable engagement, and the driving being arranged in outer barrel assembly
Assembly；Wherein:
The drive assembly includes piston cylinder assembly, guide sleeve and piston rod；
The piston rod inner is the cylindrical body of through-hole structure, and piston rod outer wall is circumferentially successively equipped at intervals with cyclic annular work from top to bottom
Plug, piston rod deflector hole, "the" shape guide groove, piston-rod lower end portion are equipped with axial splines set；
The piston cylinder assembly is between outer cylinder and piston rod, mainly by upper cylinder sleeve, upper piston cylinder, middle sealing drum and piston cylinder
Lower contact is sequentially connected composition from top to bottom, and there are axis between upper piston cylinder, middle sealing drum and piston cylinder lower contact and outer cylinder
To gap；Upper cylinder sleeve is located at top connection and outer cylinder connecting inner, the cylindrical portion structure of upper inboard wall of cylinder liner and piston rod upper end
Dynamic sealing cooperation is constituted with outer cylinder upper end inner wall at cooperation, upper cylinder sleeve or upper piston drum outer wall is slidingly sealed；Middle sealing drum with
Upper piston cylinder interconnecting piece is equipped with interior convex edge, interior convex edge last week to being distributed with along axial middle sealing drum runner, while the convex edge with
Annular piston on piston rod constitutes axial limiting cooperation；The relative inner of upper piston cylinder and upper cylinder sleeve and middle sealing drum interconnecting piece
On be respectively equipped with hole and upper piston cylinder lower opening on circumferentially distributed upper piston cylinder, on upper piston cylinder hole and upper piston cylinder lower opening with
Axial gap penetrates through between upper piston cylinder, middle sealing drum and piston cylinder lower contact and outer cylinder；It is circumferentially distributed in piston cylinder lower contact
There are piston cylinder lower contact hole, axis between piston cylinder lower contact hole and upper piston cylinder, middle sealing drum and piston cylinder lower contact and outer cylinder
It is penetrated through to gap；Guiding be set in convex edge in middle sealing drum, piston cylinder lower contact, piston rod outer wall piston rod deflector hole and
In the annular space formed between "the" shape guide groove, connected firmly outside guide sleeve with the sealing of middle sealing drum, internal and piston rod
Slide axially sealing cooperation, guide sleeve barrel be equipped with the guide sleeve runner that is radially connected with piston rod deflector hole and with middle sealing
The guide sleeve runner of middle sealing drum runner conducting on cylinder, is also circumferentially with ball, ball and work on guide sleeve inner wall
"the" shape guide groove on stopper rod outer wall constitutes guide and limit cooperation；
Annular piston on the piston rod is located in the belt cavity of upper cylinder sleeve, upper piston cylinder and guide sleeve composition, and piston
It blocks and cooperates with hole on the upper piston cylinder of upper piston cylinder and upper piston cylinder lower opening respectively at bar uplink and downlink stop, while ball
Limit cooperation is constituted with the lower dead center of the "the" shape guide groove on piston rod outer wall and top dead centre respectively；
The guide shoe inner nosepiece wall be equipped with the axial mating spline housing in piston-rod lower end portion, in guide shoe connector and piston rod
Engaging portion is along the guide shoe connector runner being axially arranged with piston cylinder lower contact hole and the perforation of guide shoe runner.
Above scheme further comprises:
Buffer gasket is equipped between the top connection and upper cylinder sleeve；The piston-rod lower end inner hole is fixed by sealing ring and circlip
There is nozzle.
Centralizer is set in outer cylinder lower end outer wall, the centralizer upper end is got out of a predicament or an embarrassing situation limit by outer cylinder, and lower end is hung by preventing
Screw limit.
Lower thrust ring is fixedly connected with by screw thread and anti-turn screw in the middle part of guide shoe connector, lower contact and guide shoe connector and under
The pairing portion of thrust ring is respectively equipped with upper bearing (metal) and lower bearing；Lower gasket ring is equipped in piston cylinder lower contact and lower contact engaging portion.
Ball inside the guide sleeve is defined by tapped through hole and guiding ball seat.
The guide shoe connector runner is located between the key of spline housing, for semicircle.
The middle sealing drum runner is circle.
The outer cylinder upper end is connect by external screw thread with top connection, and lower end is connect by internal screw thread with lower contact；On described
Cylinder sleeve, upper piston cylinder, middle sealing drum, piston cylinder lower contact pass sequentially through threaded connection；Guide shoe connector lower end passes through screw thread and draws
Shoes connection.
Positioning screw is equipped between middle sealing drum lower part and guide sleeve.
The piston upper seal of cooperation, upper cylinder sleeve or upper piston drum outer wall are slidingly sealed in upper inboard wall of cylinder liner and piston rod
Equipped with the piston cylinder upper seal cooperated with outer cylinder upper end inner wall dynamic sealing；It is equipped with and upper piston cylinder at piston rod annular piston
Sealing ring in the piston of cooperation is sealed, piston lower seal is equipped in piston rod and the guide sleeve portion of being slidably matched, in middle sealing drum
It is equipped under piston cylinder and seals with guide sleeve engaging portion.
The present invention has the advantages that being recycled by establishing during casing tripping in, realizing the axially reciprocating of piston rod
And rotation, and axial vibration impact force is generated, the resistance during casing tripping in is effectively reduced, improves the rotation reaming energy of guide shoe
Power improves setting ability and safety of the casing in extended reach well and horizontal well.
Detailed description of the invention
Fig. 1 is that whirling vibration casing guidance tripping in tool piston is in lower terminal overall structure diagram；
Fig. 2 is that whirling vibration casing guidance tripping in tool piston is in upper terminal overall structure diagram；
Fig. 3 is cross-sectional view at A-A in Fig. 1；
Fig. 4 is Fig. 2 cross-sectional view at C-C；
Fig. 5 is Fig. 1 or Fig. 2 cross-sectional view at B-B；
Fig. 6 is 11 structure chart of guide sleeve；
Fig. 7 be in Fig. 6 guide sleeve 11 along D to E-E to external helicoid flow-conveying groove expanded view；
Fig. 8 is 10 structure chart of piston rod；
Fig. 9 be Fig. 8 piston rod 10 along H to G-G to guide groove portion expanded view；
Figure 10 is middle 9 structure chart of sealing drum；
Figure 11 is the right view structure chart of middle sealing drum 9；
After Figure 12 is guide sleeve 11 and middle sealing drum 9 is assembled together, E-E moves towards cross-sectional view along Fig. 7.
In figure: 1. top connections, 2. buffer gaskets, cylinder sleeve on 3. are sealed on 4. piston cylinders, are sealed on 5. pistons, living on 6.
Plug tube, 7. outer cylinders seal in 8. pistons, sealing drum in 9., 10. piston rods, 11. guide sleeves, seal under 12. pistons, 13. guiding
Ball seat, 14. ball, 15. positioning screws seal under 16 piston cylinders, 17. piston cylinder lower contacts, 18. centralizers, 19. underlays
Ring, 20. upper bearing (metal)s, 21. lower contacts, 22. it is anti-hang screw, 23. lower bearings, 24. anti-turn screws, 25. lower thrust rings, 26. nozzles,
27. guide shoe connector, 28. guide shoes, hole on 29. upper piston cylinders, 30. piston rod epicoeles, sealing drum runner in 31., 32. guide sleeves
Runner, 33. piston cylinder lower contact holes, 34. guide shoe connector runners, 35. piston rod cavity of resorptions, 36. guide sleeve runners, 37. piston rods
Relative to ball position when in lower terminal, relative to ball position, 39. upper pistons when 38. piston rods are in upper terminal
Cylinder lower opening, 40. piston rod deflector holes.
Specific embodiment
The present invention will be further described by Fig. 1 to Figure 11 in explanation with reference to the accompanying drawing.
Referring to Fig.1 with 2, a kind of whirling vibration casing guides tripping in tool, including, top connection 1, outer cylinder 7 and lower contact 21
The outer barrel assembly formed after connection, be suspended in lower contact 21 and with the guide shoe connector 27 of 21 rotatable engagement of lower contact, guide shoe 28,
And the drive assembly in outer barrel assembly is set.
The drive assembly includes piston cylinder assembly, guide sleeve 11 and piston rod 10.
Be the cylindrical body of through-hole structure referring to Fig. 8 and 9, inside the piston rod 10,10 outer wall of piston rod it is circumferential from upper and
Under be successively equipped at intervals with annular piston, piston rod deflector hole 40, "the" shape guide groove, 10 lower end of piston rod is equipped with axial flower
Key set.
Referring to attached Fig. 1 and 2, the piston cylinder assembly is between outer cylinder 7 and piston rod 10, mainly by upper cylinder sleeve 3, upper work
Plug tube 6, middle sealing drum 9 and piston cylinder lower contact 17 are sequentially connected composition, and upper piston cylinder 6, middle sealing drum 9 and work from top to bottom
There are axial gaps between plug tube lower contact 17 and outer cylinder 7.Upper cylinder sleeve 3 is located at top connection 1 and 7 connecting inner of outer cylinder, upper cylinder sleeve 3
The cylindrical portion composition of inner wall and 10 upper end of piston rod is slidingly sealed cooperation, upper cylinder sleeve 3 or 6 outer wall of upper piston cylinder with outside
7 upper end inner walls of cylinder constitute dynamic sealing cooperation.Referring to attached drawing 10-12, middle sealing drum 9 is equipped with interior convex edge with 6 interconnecting piece of upper piston cylinder,
Interior convex edge last week is to the middle sealing drum runner 31 being distributed with along axial direction, while the annular piston on the convex edge and piston rod 10 is constituted
Axial limiting cooperation.It is respectively equipped on upper piston cylinder 6 and the relative inner of 9 interconnecting piece of upper cylinder sleeve 3 and middle sealing drum circumferentially distributed
Upper piston cylinder on hole 29 and upper piston cylinder lower opening 39, on upper piston cylinder hole 29 and upper piston cylinder lower opening 39 with upper piston cylinder 6,
Axial gap penetrates through between middle sealing drum 9 and piston cylinder lower contact 17 and outer cylinder 7.Work is circumferentially distributed in piston cylinder lower contact 17
Plug tube lower contact hole 33, piston cylinder lower contact hole 33 and upper piston cylinder 6, middle sealing drum 9 and piston cylinder lower contact 17 and outer cylinder 7 it
Between axial gap penetrate through.Referring to Fig. 6-7, guide sleeve 11 is located at convex edge, piston cylinder lower contact 17, piston rod 10 in middle sealing drum 9
In the annular space formed between the piston rod deflector hole 40 and "the" shape guide groove of outer wall, 11 outside of guide sleeve and middle sealing
9 sealing of cylinder connects firmly, and internal slide axially with piston rod 10 seals cooperation, and 11 barrel of guide sleeve is equipped with and piston rod deflector hole 40
The guide sleeve runner 32 be radially connected and the guide sleeve runner 36 with middle sealing drum runner 31 conducting on middle sealing drum 9, are leading
Ball 14 is also circumferentially on 11 inner walls of set, ball 14 is led with the "the" shape guide groove composition on 10 outer wall of piston rod
Cooperate to limit.
Referring to Fig.1,8 and 10, the annular piston on the piston rod 10 is located at upper cylinder sleeve 3, upper piston cylinder 6 and guide sleeve 11
Composition belt cavity in, and at 10 uplink and downlink stop of piston rod respectively with hole 29 and upper work on the upper piston cylinder of upper piston cylinder 6
Plug tube lower opening 39 block cooperation, while ball 14 respectively with the lower dead center of the "the" shape guide groove on 10 outer wall of piston rod and
Top dead centre constitutes limit cooperation.
Referring to Fig. 5,27 inner wall of guide shoe connector be equipped with the axial mating spline housing in 10 lower end of piston rod,
Guide shoe connector 27 connects with 10 engaging portion of piston rod along the guide shoe penetrated through with piston cylinder lower contact hole 33 and guide shoe runner is axially arranged with
Head runner 34.
It is further: buffer gasket 2 is equipped between the top connection 1 and upper cylinder sleeve 3；The 10 lower end inner hole of piston rod is logical
It crosses sealing ring and circlip is fixed with nozzle 26.
It is further: centralizer 18 to be set in 7 lower end outer wall of outer cylinder, 18 upper end of centralizer is got out of a predicament or an embarrassing situation by outer cylinder 7
Limit, lower end is by preventing that hanging screw 22 limits.
It is further: lower thrust ring 25 being fixedly connected with by screw thread and anti-turn screw 24 in the middle part of guide shoe connector 27, is connect under
First 21 are respectively equipped with upper bearing (metal) 20 and lower bearing 23 with the pairing portion of guide shoe connector 27 and lower thrust ring 25；In piston cylinder lower contact
17 and 21 engaging portion of lower contact be equipped with lower gasket ring 19.
Further: the ball 14 inside the guide sleeve 11 is defined by tapped through hole and guiding ball seat 13.
Further: the guide shoe connector runner 34 is located between the key of spline housing, for semicircle.
Further: the middle sealing drum runner 31 is circle.
Further: 7 upper end of outer cylinder is connect by external screw thread with top connection 1, and lower end passes through internal screw thread and lower contact
21 connections；The upper cylinder sleeve 3, upper piston cylinder 6, middle sealing drum 9, piston cylinder lower contact 17 pass sequentially through threaded connection；Guide shoe connects
First 27 lower end is connect by screw thread with guide shoe 28.
It is further: positioning screw 15 is equipped between middle 9 lower part of sealing drum and guide sleeve 11.
It is further: be slidingly sealed the piston upper seal 5 of cooperation in upper 3 inner wall of cylinder sleeve and piston rod 10, upper cylinder sleeve 3 or
6 outer wall of person's upper piston cylinder is equipped with the piston cylinder upper seal 4 cooperated with 7 upper end inner wall dynamic sealing of outer cylinder；In 10 annular of piston rod
It is equipped with sealing ring 8 in the piston cooperated with the sealing of upper piston cylinder 6 at piston, is set in piston rod 10 and 11 portion of being slidably matched of guide sleeve
There is piston lower seal 12, seals 16 in the case where middle sealing drum 9 is equipped with piston cylinder with 11 engaging portion of guide sleeve.
Typical case embodiment
Shown in Fig. 1,2, top connection 1 and the casing of G.I.H are connected through a screw thread when use, outer cylinder 7 and 1 spiral shell of top connection
Line connection, 18 sets of centralizer outside 7 lower end of outer cylinder, can be limited with unrestricted choice, 18 upper end of centralizer by 7 lower end step of outer cylinder
Position, lower part is by preventing that hanging screw 22 limits.Lower contact 21 is connect by screw thread with outer cylinder 7,21 inner hole upper and lower ends of lower contact difference
Equipped with upper bearing (metal) 20 and lower bearing 23, it is able to bear axial and radial force, realizes that guide shoe connector 27 is opposite with respect to lower contact 21
It rotates and bears axial force.Lower thrust ring 25 by screw thread mounted in 27 middle part of guide shoe connector, installed by screw thread by anti-turn screw 24
In lower 25 outer circle threaded hole of thrust ring, prevent lower thrust ring 25 from loosening after tightening.Lower bearing 23 is able to bear 10 institute of piston rod
The impact force axially downwards generated, and guide shoe 28 is passed to by lower thrust ring 25.Equipped with slow between top connection 1 and upper cylinder sleeve 3
Washer 2 is rushed, can compensate for error in length when axial assemble, and the upward impact force of damper piston bar 10 can be played.Upper cylinder half
It covers and seals 5 on 3 inner holes installation piston, cylinder sleeve 3 can move axially in reciprocal fashion on 10 opposing pistons of piston rod.Middle sealing drum 9 with
Upper piston cylinder 6 is connected through a screw thread, and (i.e. annular piston) is mounted in upper cylinder sleeve 3 and upper piston cylinder 6 at 10 top maximum diameter of piston rod
With middle sealing drum 9 formed it is intracavitary, can move back and forth and be freely rotated along axis.17 upper end of piston cylinder lower contact and middle sealing
Cylinder 9 is connected through a screw thread.Positioning screw 15 is tightened with guide sleeve 11 by screw thread after passing through middle 9 lower outside through-hole of sealing drum,
The flowing hole 31 of the guide sleeve runner 36 and middle sealing drum 9 that ensure guide sleeve 11 rushes neat (referring to Fig.1 2).7 lower end of outer cylinder connects under
First 21 are connected through a screw thread, and lower gasket ring 19 is mounted between piston cylinder lower contact 17 and lower contact 21, play and are fixed piston
The effect of cylinder lower contact 17 and upper piston cylinder 6.See that Fig. 5,10 lower end of piston rod and 27 inner hole of guide shoe connector pass through spline nested structure
Connection can move back and forth to axial and transfer torque to guide shoe 28.When piston rod 10 is in lower final position shown in Fig. 1,
The liquid for flowing through nozzle 26 generates pressure drop, and 10 internal bore pressures of piston rod is caused to be higher than the lower end pressure of nozzle 26, and 26 lower end of nozzle is low
Pressure area connects through hole 29 on guide shoe connector runner 34, piston cylinder lower contact hole 33, upper piston cylinder and 10 top hydraulic cavities 30 of piston rod
It is logical, it keeps uniform pressure (low pressure).Guide sleeve runner of 10 inner hole of piston rod through middle part piston rod deflector hole 40 Yu guide sleeve 11
32 are connected to, and are directed laterally to set runner 36(by guide sleeve 11 and see Fig. 7) and middle sealing drum 9 flowing hole 31(see Figure 10-12)
See Fig. 2 with piston rod cavity of resorption 35() be connected to, form higher-pressure region, push 11 uplink of piston rod, the liquid in piston rod epicoele 30 by
Hole 29 is discharged on the upper piston of 6 upper side of upper piston cylinder.Be oriented to ball seat 13 by being threadably mounted at 11 lower end inside of guide sleeve,
14 outside of ball and the concave spherical of guiding ball seat 13 cooperate, the "the" shape guide groove of ball 14 inside and piston rod 10
Cooperation.When piston rod 10 is in lower terminal, it is in the position 37 marked in Fig. 9 relative to ball 14, when 11 uplink of piston rod
14 opposing pistons bar 11 of ball arrow meaning line-of-road movement along Fig. 9, until position 38 in Fig. 9.When 11 uplink of piston rod
Under ball 14 acts on, piston rod 11, which is rotated clockwise, goes to the position Fig. 4 by the position Fig. 3, and rotation angle is the angle α in figure, and is led to
Crossing guide shoe lower contact 27 drives guide shoe 28 to rotate clockwise, and realizes reaming function.11 uplink process of piston rod, above-mentioned higher-pressure region stream
Road is connected to always, it is ensured that pressure can reach piston rod cavity of resorption 35, until piston rod 10 reaches upper terminal.
It is shown in fig. 2, the channel of inner hole and guide sleeve 11 is closed, such as Fig. 4 institute after piston rod 10 reaches terminal
Show.38 pointed locations in Fig. 9 are in relative to piston rod 10 in ball 14.Piston rod cavity of resorption 35 is by under upper piston cylinder at this time
Hole 39, piston cylinder lower contact hole 33, guide shoe connector runner 34 are connected to the low-pressure area of 26 lower end of nozzle, high in 10 hole of piston rod
Under the action of pressure, 10 downlink of piston rod, before reaching lower terminal, piston rod deflector hole 40 and guide sleeve runner 32 are to maintain closing
, as shown in Figure 4.Meanwhile under the effect of ball 14, while piston rod 11 is along downlink, rotate clockwise by the position Fig. 4
The position Fig. 3 is gone to, rotation angle is the angle β in figure, and drives guide shoe 28 to rotate clockwise by guide shoe lower contact 27, realizes reaming
Function.Centering sealing drum 9 generates impact force when piston rod 10 comes downwards to lower terminal, and passes through piston cylinder lower contact 17, lower gasket ring
19, lower contact 21, lower bearing 21, lower thrust ring 25, guide shoe connector 27 pass to guide shoe 28.
In cycles, circulation the above process occurs under the liquid effects for flowing through nozzle 26, generates the axial direction of certain frequency
Impact force, and guide shoe 28 is driven to rotate reaming.
Claims (10)
1. a kind of whirling vibration casing guides tripping in tool, including, group after top connection (1), outer cylinder (7) and lower contact (21) connection
At outer barrel assembly, be suspended in lower contact (21) and with the guide shoe connector (27) of lower contact (21) rotatable engagement, guide shoe (28),
And the drive assembly in outer barrel assembly is set；It is characterized by:
The drive assembly includes piston cylinder assembly, guide sleeve (11) and piston rod (10)；
It is the cylindrical body of through-hole structure inside the piston rod (10), piston rod (10) outer wall is circumferential, and successively interval is set from top to bottom
There are annular piston, piston rod deflector hole (40), "the" shape guide groove, piston rod (10) lower end is equipped with axial splines set；
The piston cylinder assembly between outer cylinder (7) and piston rod (10), mainly by upper cylinder sleeve (3), upper piston cylinder (6), in
Sealing drum (9) and piston cylinder lower contact (17) are sequentially connected composition, and upper piston cylinder (6), middle sealing drum (9) and work from top to bottom
There are axial gaps between plug tube lower contact (17) and outer cylinder (7)；Upper cylinder sleeve (3) is located in top connection (1) and outer cylinder (7) combination
Portion, the cylindrical portion composition of upper cylinder sleeve (3) inner wall and piston rod (10) upper end are slidingly sealed cooperation, upper cylinder sleeve (3) or
Upper piston cylinder (6) outer wall and outer cylinder (7) upper end inner wall constitute dynamic sealing cooperation；Middle sealing drum (9) and upper piston cylinder (6) interconnecting piece
Equipped with interior convex edge, interior convex edge last week is to being distributed with along axial middle sealing drum runner (31), while the convex edge and piston rod (10)
On annular piston constitute axial limiting cooperation；Upper piston cylinder (6) and upper cylinder sleeve (3) and middle sealing drum (9) interconnecting piece it is opposite
Hole (29) and upper piston cylinder lower opening (39) on circumferentially distributed upper piston cylinder are respectively equipped on inside, on upper piston cylinder hole (29) and
Upper piston cylinder lower opening (39) axis between upper piston cylinder (6), middle sealing drum (9) and piston cylinder lower contact (17) and outer cylinder (7)
It is penetrated through to gap；Piston cylinder lower contact hole (33), piston cylinder lower contact hole (33) are circumferentially distributed in piston cylinder lower contact (17)
Axial gap penetrates through between upper piston cylinder (6), middle sealing drum (9) and piston cylinder lower contact (17) and outer cylinder (7)；Guide sleeve
(11) be located at the interior convex edge of middle sealing drum (9), piston cylinder lower contact (17), piston rod (10) outer wall piston rod deflector hole (40) and
In the annular space formed between "the" shape guide groove, guide sleeve (11) is external to be connected firmly with middle sealing drum (9) sealing, it is internal and
Piston rod (10), which slides axially, seals cooperation, and guide sleeve (11) barrel is equipped with and leads with what piston rod deflector hole (40) was radially connected
The guide sleeve runner (36) that middle sealing drum runner (31) on set runner (32) He Yuzhong sealing drum (9) is connected, in guide sleeve
(11) it is also circumferentially on inner wall ball (14), the "the" shape guide groove structure in ball (14) and piston rod (10) outer wall
Cooperate at guide and limit；
Annular piston on the piston rod (10) is located at going in ring for upper cylinder sleeve (3), upper piston cylinder (6) and guide sleeve (11) composition
In cavity, and at piston rod (10) uplink and downlink stop respectively with hole (29) and upper piston cylinder on the upper piston cylinder of upper piston cylinder (6)
Lower opening (39) blocks cooperation, while ball (14) lower dead center with the "the" shape guide groove on piston rod (10) outer wall respectively
Limit cooperation is constituted with top dead centre；
Guide shoe connector (27) inner wall be equipped with the axial mating spline housing in piston rod (10) lower end, in guide shoe connector
(27) with piston rod (10) engaging portion along the guide shoe connector being axially arranged with piston cylinder lower contact hole (33) and the perforation of guide shoe runner
Runner (34).
2. whirling vibration casing according to claim 1 guides tripping in tool, it is characterised in that: the top connection (1) and
Buffer gasket (2) are equipped between upper cylinder sleeve (3)；Piston rod (10) lower end inner hole is fixed with nozzle by sealing ring and circlip
(26).
3. whirling vibration casing according to claim 1 or 2 guides tripping in tool, it is characterised in that: in outer cylinder (7) lower end
Centralizer (18) are arranged in portion's outer wall, and centralizer (18) upper end is got out of a predicament or an embarrassing situation limit by outer cylinder (7), and screw (22) are hung by preventing in lower end
Limit.
4. whirling vibration casing according to claim 3 guides tripping in tool, it is characterised in that: in guide shoe connector (27)
Portion is fixedly connected with lower thrust ring (25) by screw thread and anti-turn screw (24), in lower contact (21) and guide shoe connector (27) and lower thrust
The pairing portion of ring (25) is respectively equipped with upper bearing (metal) (20) and lower bearing (23)；It is tied in piston cylinder lower contact (17) and lower contact (21)
Conjunction portion is equipped with lower gasket ring (19).
5. whirling vibration casing according to claim 4 guides tripping in tool, it is characterised in that: in the guide sleeve (11)
The ball (14) in portion is defined by tapped through hole and guiding ball seat (13).
6. whirling vibration casing according to claim 5 guides tripping in tool, it is characterised in that: the guide shoe connector runner
(34) between the key of spline housing, for semicircle.
7. whirling vibration casing according to claim 6 guides tripping in tool, it is characterised in that: the middle sealing drum runner
It (31) is circle.
8. whirling vibration casing according to claim 7 guides tripping in tool, it is characterised in that: outer cylinder (7) upper end
It is connect by external screw thread with top connection (1), lower end is connect by internal screw thread with lower contact (21)；The upper cylinder sleeve (3), upper piston
Cylinder (6), middle sealing drum (9), piston cylinder lower contact (17) pass sequentially through threaded connection；Guide shoe connector (27) lower end by screw thread with
Guide shoe (28) connection.
9. whirling vibration casing according to claim 8 guides tripping in tool, it is characterised in that: middle sealing drum (9) lower part
Positioning screw (15) are equipped between guide sleeve (11).
10. whirling vibration casing according to claim 1 guides tripping in tool, it is characterised in that: in upper cylinder sleeve (3) inner wall
Be slidingly sealed the piston upper seal (5) of cooperation with piston rod (10), upper cylinder sleeve (3) or upper piston cylinder (6) outer wall be equipped with
The piston cylinder upper seal (4) of outer cylinder (7) upper end inner wall dynamic sealing cooperation；It is equipped with and upper work at piston rod (10) annular piston
Sealing ring (8) in the piston of plug tube (6) sealing cooperation, in the case where piston rod (10) and guide sleeve (11) portion of being slidably matched are equipped with piston
Sealing ring (12) seals (16) in the case where middle sealing drum (9) and guide sleeve (11) engaging portion are equipped with piston cylinder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810064892.XA CN110067513A (en) | 2018-01-23 | 2018-01-23 | A kind of whirling vibration casing guidance tripping in tool |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810064892.XA CN110067513A (en) | 2018-01-23 | 2018-01-23 | A kind of whirling vibration casing guidance tripping in tool |
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| CN110067513A true CN110067513A (en) | 2019-07-30 |
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| CN201810064892.XA Pending CN110067513A (en) | 2018-01-23 | 2018-01-23 | A kind of whirling vibration casing guidance tripping in tool |
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