CN107044260B - Drive casing appliances in a kind of screw drive fully mechanical top - Google Patents
Drive casing appliances in a kind of screw drive fully mechanical top Download PDFInfo
- Publication number
- CN107044260B CN107044260B CN201710097604.6A CN201710097604A CN107044260B CN 107044260 B CN107044260 B CN 107044260B CN 201710097604 A CN201710097604 A CN 201710097604A CN 107044260 B CN107044260 B CN 107044260B
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- screw thread
- mandrel
- slips
- tooth block
- slip
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- 230000033001 locomotion Effects 0.000 claims abstract description 8
- 241000239290 Araneae Species 0.000 claims description 18
- 238000012856 packing Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 15
- 230000000694 effects Effects 0.000 description 9
- 238000013461 design Methods 0.000 description 6
- 230000005484 gravity Effects 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 230000000916 dilatatory effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- 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
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/10—Slips; Spiders ; Catching devices
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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)
- Transmission Devices (AREA)
Abstract
Casing appliances is driven on a kind of screw drive fully mechanical top, and upper mandrel threaded upper ends connect top driving device, and upper mandrel lower end spline is connected with threaded drive systems；Threaded drive systems lower end of the bolt is connected with power-transmission system；Power-transmission system lower end is connected with slip system；Slip system lower end of the bolt is connected with pilot seal system；Slip system upper end is equipped with spring system.When work: the present invention uses screw-driven principle, and the rotary motion of top driving device is converted to the axial driving force of slips, makes slips along wedge surface distending, and then realizes the purpose of slips stretching internal surface of sleeve pipe.The present invention drives slips, no hydraulic power source, thus more environmentally friendly, safety using fully mechanical structure；There are staggered transverse direction and circumferential slip insert on slips, the ability that torque is driven on tool transmitting top can be increased；Meanwhile using this tool can also at any time revoling tube, lift casing, circulating mud, to improve casing job efficiency and safety, reduce drilling well overall cost.
Description
Technical field
The present invention relates to petroleum gas well cementation equipment technology field, in particular to a kind of screw drive fully mechanical top is driven
Casing appliances.
Background technique
The purpose of casing job is to insulate stratum, Reinforcing Shaft, prevent oil and gas leakage and establish gas channel etc., is
An extremely important link in oil and gas well drilling operation process.Casing appliances is the key that complete casing job
Property equipment, conventional setting of casing equipment specifically includes that the wellhead slip for grip sleeve, the hydraulic casing for casing spinner
The tools such as pincers, the open grouting device for mud to be discontinuously perfused, the casing elevator for promoting casing.
There are the following problems for above-mentioned routine setting of casing equipment: (1) utilizing casing tong spinner, the upper twist buckle of casing threads is not away from
Easily accurate control；(2) mud is perfused using interrupted provisions for grouting, cannot timely circulating mud as needed, especially in casing
When tripping in is hampered, it is necessary to reconnect kelly bar and establish mud circulation, remove desilting, affect tube efficiency of trapping；(3) set is utilized
Pipe elevator promotes casing, and the casing in wellbore cannot rotate；(4) there is also complicated for operation, operating efficiencies for conventional setting of casing equipment
It is low, the disadvantages of security reliability is not high.
To solve the above problems, having developed top both at home and abroad drives casing pipe running device, the form of the driving force according to suffered by slips is not
It together, can be by the tools sort are as follows: hydraulic drive type and mechanically driver type.China Patent No.: CN201420409069.5,
CN201120557017.9, CN200920105896.4 disclose hydraulic drive type casing appliances；China Patent No.:
CN201520506694.6, CN201510410640.4, CN201510312492.2 disclose mechanically driver type top and drive setting of casing
Tool.However, the hydraulic oil of above-mentioned fluid pressure type casing appliances is easy leakage pollution environment, and hydraulic system is by external environment
Be affected；And the above-mentioned mechanical casing appliances disadvantage that has that structure is complicated, in addition, the range of slips transmitting torque compared with
It is small, the use of operating conditions such as a variety of sleeve rotatings are not adapted to, are detained on casing.
Summary of the invention
In order to overcome the disadvantages mentioned above of existing setting of casing equipment, it is entirely mechanical the purpose of the present invention: to provide a kind of screw drive
Casing appliances is driven on formula top, without providing additional power source, only top can be made to drive casing appliances with top driving device and complete rotation
Pivoted housing pipe lifts the operations such as casing, perfusion mud, circulating mud, and slip system can effectively transmit the torque that top is driven.
In order to achieve the above object, the technical scheme of the present invention is realized as follows:
Drive casing appliances, including the transmitting of upper mandrel 1, threaded drive systems 2, power in a kind of screw drive fully mechanical top
System 3, slip system 4, pilot seal system 5, spring system 6, it is characterized in that: the upper end outer surface of upper mandrel 1 is provided with outer
Screw thread, external screw thread drive to be formed with top and be threadedly coupled；The lower end inner surface of upper mandrel 1 is provided with internal screw thread, internal screw thread and spring system
System 6, which is formed, to be threadedly coupled；Lower mandrel 40 is hung in spring system 6；The upside of lower mandrel 40 is cased with power-transmission system 3；It is dynamic
Threaded drive systems 2 have been bolted on the upside of 3 system of power delivery system；Slip system 4 is housed on the downside of power-transmission system 3；Card
4 lower thread of tile system is connected with pilot seal system 5；
The upper end outer surface of the upper mandrel 1 is provided with taper thread 11, and taper thread 11 is threadedly coupled with top driving device formation；
The center outer surface of upper mandrel 1 is provided with external splines 12, and external splines 12 matches to form spline company with the spline of inner cylinder 24
It connects；The lower end inner surface of upper mandrel 1 is provided with internal screw thread 13, and internal screw thread 13 is threadedly coupled with the formation of lower tooth block 23；
The upper mandrel 1 and threaded drive systems 2 form spline and connects, the threaded drive systems 2 including inner cylinder 24,
Small bearing 25, small bearing (ball) cover 26, outer barrel 27；24 outer surface of inner cylinder is in ladder shaft-like, and the big axis outer surface of multi-diameter shaft is set
It is equipped with external screw thread, external screw thread is for connecting outer barrel 27；Threaded hole is arranged in the small axial end of multi-diameter shaft, and threaded hole is small for connecting
Bearing (ball) cover 26；The inner surface of inner cylinder 24 is provided with step, and step is provided with spline, spline and upper mandrel 1 in upside
External splines 12 cooperate transmitting rotary motion；Small bearing 25 is installed in step lower opening, and step is used to position small bearing 25,
Small bearing 25 is compressed by small bearing (ball) cover 26；
27 inner surface of outer barrel is provided with step, and internal screw thread, internal screw thread and inner cylinder are provided in the circular hole on the upside of step
24 form threaded connection；Big bearing 31 is installed in step lower opening, and step is for positioning big bearing 31；Hole end surface is arranged under step
There is threaded hole, bolt passes through threaded hole and is connected with big bearing (ball) cover 32；
The power-transmission system 3 includes big bearing 31, big bearing (ball) cover 32, slip spider 33, big round nut 34；Slip spider
33 inner surfaces are cased with lower mandrel 40, and 33 outer surface of slip spider is stepped；The oblique T-slot of opening is provided on the downside of slip spider 33,
Slips 41 is installed in oblique T-slot；It is provided with step 35 on the upside of oblique T-slot, external screw thread 36, external screw thread are provided on the upside of step 35
Big round nut 34 is connected on 36；Big bearing 31 is installed between step 35 and big round nut 34；Big bearing 31 is by big bearing end
Lid 32, the positioning of outer barrel 27, fastening；Power-transmission system 3 can be rotated relative to lower mandrel 40；
The slip system 4 includes lower mandrel 40, slips 41；The 40 top outer surface of lower mandrel is provided with external screw thread,
External screw thread is threadedly coupled with the formation of upper tooth block 20；It is provided with multi-diameter shaft on the downside of external screw thread, spring system 6 is installed outside multi-diameter shaft；
Outer wedge surface is arranged in the lower side external surface of lower mandrel 40, and 41 inside bottom surface of slips is provided with interior wedge surface；The interior wedge of slips 41
Face is installed in the outer wedge surface of lower mandrel 40；Slips 41 can radial distending after the wedge surface sliding of lower mandrel 40；41 appearance of slips
Face is staggeredly equipped with longitudinal slips 42, transverse and longitudinal slip insert 43.
40 lower end of lower mandrel is threaded with pilot seal system 5, pilot seal system 5 include protrusion-dispelling ring 50,
Packing element 51, guide head 52；Packing element 51 is installed between protrusion-dispelling ring 50 and guide head 52, and guide head 52 and lower 40 screw thread of mandrel connect
It connects；
40 top outer of lower mandrel is cased with spring system 6, and spring system 6 includes spherical ball 19, upper tooth block 20, bullet
Spring 21, check ring 22, lower tooth block 23；The upper tooth block 20 is in circular ring shape, and the inner surface of upper tooth block 20 is provided with internal screw thread, interior
Screw thread and the external screw thread on lower 40 top of mandrel are in mating connection；The bottom end of upper tooth block 20 is provided with the triangular bump with chamfering；
Upper 20 center bottom of tooth block compression has spring 21；
The contact of 21 bottom end of spring has check ring 22, and check ring 22 is in circular ring shape, the setting of 22 bottom end surface of check ring
There are semi-circular recesses, spherical ball 19 is installed in semi-circular recesses；19 downside of spherical ball is contacted with lower tooth block 23；
Lower tooth block 23 is internally provided with stepped hole, and ladder hole end surface is provided with semi-circular recesses, installation in semi-circular recesses
There is spherical ball 19；Ladder internal surface of hole is provided with annular groove, and sealing ring is equipped in annular groove, is combined in sealing ring
Lower mandrel 40；The top end surface of lower tooth block 23 is provided with the triangle concave block with chamfering, and triangle concave block can be with upper tooth block 20
Triangular bump intermeshing transmitting torque；The outer surface of lower tooth block 23 is provided with external screw thread, and external screw thread and upper mandrel 1 form spiral shell
Line connection.
Compared with the prior art, effect of the invention is: 1) this top drives casing appliances and uses fully mechanical structure, is not necessarily to
Additional power source is provided, is had the characteristics that safe and efficient；2) this top drives that casing appliances is structurally reasonable, convenience easy to operate；
3) it is simple to drive casing appliances structure for this top, thus can reduce processing and manufacturing difficulty, reduces production cost.
Detailed description of the invention
Fig. 1 is three dimensional structure diagram of the present invention.
Fig. 2 is plane half section structure diagram of the present invention.
Fig. 3 is three dimensional sectional view of the present invention.
Fig. 4 is upper core shaft structure schematic diagram.
Fig. 5 is spring system and threaded drive systems mounting structure schematic diagram.
Fig. 6 is that spring system three-dimensional cuts open structural schematic diagram.
Fig. 7 is that the upper tooth block of spring system and the three-dimensional before the engagement of lower tooth block cut open structural schematic diagram.
Fig. 8 is that the check ring three-dimensional of spring system cuts open structural schematic diagram.
Fig. 9 is that the three-dimensional of threaded drive systems cuts open structural schematic diagram.
Figure 10 is that the inner cylinder three-dimensional of threaded drive systems cuts open structural schematic diagram.
Figure 11 is that the outer barrel three-dimensional of threaded drive systems cuts open structural schematic diagram.
Figure 12 is that the three-dimensional of power-transmission system cuts open structural schematic diagram.
Figure 13 is that the slip spider three-dimensional of power-transmission system cuts open structural schematic diagram.
Figure 14 is that the three-dimensional of slip system cuts open structural schematic diagram.
Figure 15 is the partial schematic diagram of slip system slip insert.
Figure 16 is that pilot seal system three-dimensional cuts open structural schematic diagram.
Mandrel on 1., 2. screw thread drive systems, 3. power-transmission systems, 4. slip systems, 5. pilot seal systems, 6. springs
System, 11. taper threads, 12. external splines, 13. internal screw threads, 19. spherical balls, tooth block on 20., 21. springs, 22. spring catch
Circle, 23. lower tooth blocks, 24. inner cylinders, 25. small bearings, 26. small bearing (ball) covers, 27. outer barreies, 31. big bearings, 32. big bearings
End cap, 33. slip spiders, 34. big round nuts, 35. steps, 36. external screw threads, 40. lower mandrels, 41. slips, 42. longitudinal slip inserts,
43. 50. protrusion-dispelling ring of lateral slip insert, 51. packing elements, 52. guide heads.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing.
Referring to Fig.1 ~ 3, casing appliances, including upper mandrel 1, threaded drive systems are driven in a kind of screw drive fully mechanical top
2, power-transmission system 3, slip system 4, pilot seal system 5, spring system 6.The upper end outer surface of upper mandrel 1 is provided with outer
Screw thread, external screw thread drive to be formed with top and be threadedly coupled.The lower end inner surface of upper mandrel 1 is provided with internal screw thread, internal screw thread and spring system
System 6, which is formed, to be threadedly coupled.Lower mandrel 40 is hung in spring system 6.The upside of lower mandrel 40 is cased with threaded drive systems 2.Spiral shell
2 lower end of the bolt of line drive system is connected with power-transmission system 3；Slip system 4 is installed in power-transmission system 3；Slips system
4 lower threads of uniting are connected with pilot seal system 5.Wherein, upper mandrel 1 plays connection top driving device, the work of carrying gravity, torque
With；Threaded drive systems 2, which play, provides driving force for slips, drives 41 diameter distending of slips, has the function that stretching internal surface of sleeve pipe；
Power-transmission system 3 plays the role of transmitting axial load, prevents slips from threaded drive systems 2 being followed to rotate；Slip system 4 rises
The effects of being acted on to executing agency, being used for stretching internal surface of sleeve pipe, complete some column casing jobs；Pilot seal system 5 plays
The effect of guidance and sealing casing appliances；Spring system 6 plays transmitting torque, carrying gravity, and slip system 4 is made to restore former
The effect of beginning state.The present invention will be described in further detail below.
Referring to Fig. 4, the upper end outer surface of upper mandrel 1 is provided with taper thread 11, and taper thread 11 with top driving device for connecting.
The center outer surface of upper mandrel 1 has rectangle external splines 12 along annular design, and external splines 12 is matched with the spline of inner cylinder 24
Spline connection is formed, to transmit the rotary motion of top driving device.The lower end inner surface design of upper mandrel 1 has internal screw thread 13, interior
Screw thread 13 is threadedly coupled with the formation of lower tooth block 23.
Referring to Fig. 5, Fig. 9 ~ Figure 10, upper mandrel 1 forms spline with threaded drive systems 2 and connect.Threaded drive systems 2 include
Inner cylinder 24, outer barrel 27, small bearing 25, small bearing (ball) cover 26.24 outer surface of inner cylinder is in ladder shaft-like, the big axis of multi-diameter shaft
Outer surface is provided with external screw thread, and external screw thread is threadedly coupled with the formation of outer barrel 27, thus the rotary motion that top driving device will be rotated,
It is converted into the axial movement of outer barrel 27.12 threaded holes are arranged in the small axial end of 24 multi-diameter shaft of inner cylinder, and threaded hole is used for
Connect small bearing (ball) cover 26.The inner surface of inner cylinder 24 is provided with step, and interior circumferentially design has spline, spline on the upside of step
It is fitted with the external splines 12 of mandrel 1 in slot, so that mandrel 1 is formed spline with inner cylinder 24 and connect, driven to transmit top
The rotary motion of device.Small bearing 25 is installed in the downside of 24 step of inner cylinder, and positioned with step, fasten small bearing 25；
Small bearing 25 is made of a pair of of tapered roller bearing, so that outer barrel 27 be enable to rotate relative to lower mandrel 40.
Referring to Fig.1 1,27 inner surface of outer barrel is provided with step, and internal screw thread, internal screw thread are provided in the circular hole on the upside of step
For being threadedly coupled with the formation of inner cylinder 24.Positioning is equipped with big bearing 31 in circular hole on the downside of step, and big bearing 31 is by a pair
Tapered roller bearing is constituted, and big bearing 31 can be such that power drive system rotates relative to lower mandrel 40.The end face of step is provided with
Threaded hole, bolt pass through the big bearing (ball) cover 32 that threaded hole is connected with power-transmission system 3.
2 ~ Figure 13 referring to Fig.1, power-transmission system 3 include big round nut 34, big bearing 31, big bearing (ball) cover 32, slips
Seat 33.33 inner surface of slip spider is cased with lower mandrel 40；33 outer surface of slip spider is stepped.Design has opening on the downside of slip spider 33
Oblique T-slot, six slips 41 are installed in oblique T-slot, when slips 41 is slided along lower mandrel 40, oblique T-slot can make slips 41
Upper end also distending.It is provided with slip spider step 35 on the upside of oblique T-slot, slip spider external screw thread is provided on the upside of slip spider step 35
36, slip spider external screw thread 36 is externally connected with big round nut 34.Big bearing 31 be installed on slip spider step 35 and big round nut 34 it
Between, big bearing 31 is positioned and is fastened by big bearing (ball) cover 32.Big bearing 32 is made of a pair of of tapered roller bearing.Big bearing 31
Power-transmission system 3 can be made to rotate relative to lower mandrel 40, to prevent power-transmission system 3 from lower mandrel 40 being followed to rotate.
4, Figure 15 referring to Fig.1, slip system 4 include lower mandrel 40, slips 41.Lower 40 tip designs of mandrel have multi-diameter shaft,
Cascaded surface upper outside surfaces are provided with one section of external screw thread, and external screw thread is externally connected with tooth block 20.Design has one section on the downside of cascaded surface
External screw thread, external screw thread are externally connected with round nut, and round nut is for installing, positioning big bearing 31.Outside lower 40 top multi-diameter shaft of mandrel
Spring system 6 is installed.Setting is fitted with a slips on each wedge surface there are six wedge surface on the downside of lower 40 outer surface of mandrel
41.41 inside bottom surface of slips is provided with interior wedge surface.The interior wedge surface of slips 41 is installed in the outer wedge surface of lower mandrel 40, and slips
41 can slide along wedge surface.Due to the wedge effect of wedge surface, slips 41 can radially distending, make 41 stretching internal surface of sleeve pipe of slips, from
And realize casing clamping, rotation.In addition, 41 outer surface interlaced arrangement of slips has 42 tooth of lateral slip insert 43 and longitudinal slips；It is horizontal
It can increase lateral frictional force to longitudinal slip insert interlaced arrangement, so that the upper button ability that casing appliances is driven on top is improved,
And the transmission capacity of torque.Lower 40 lower thread of mandrel is connected with pilot seal system 5.
Referring to Fig.1 6, pilot seal system 5 includes protrusion-dispelling ring 50, packing element 51, guide head 52；Packing element 51 is installed on protrusion-dispelling ring
Between 50 and guide head 52, guide head 52 is threadedly coupled with lower mandrel 40.Protrusion-dispelling ring 50 is used to limit big when packing element 51 is pressurized
Deformational behavior, to prevent mud from revealing.Packing element 51 is to have self-sealing function in leather cup shape.Guide head 52 is for guiding slips system
It unites 4 sleeve pipe annular spaces.
Referring to Fig. 5, Fig. 6, lower 40 top outer of mandrel is cased with spring system 6, and spring system 6 includes spherical ball 19, on
Tooth block 20, spring 21, check ring 22, lower tooth block 23.Upper tooth block 20 is in circular ring shape, and the inner surface of upper tooth block 20 is provided with interior spiral shell
Line, internal screw thread are matched with the external screw thread on lower 40 top of mandrel, are formed and are threadedly coupled.The bottom end of upper tooth block 20 is provided with band chamfering
Triangular bump, triangular bump convenient for guidance insertion lower tooth block 23 triangle cavity in.
Referring to Fig. 6, Fig. 7, upper 20 center bottom of tooth block compression has spring 21, and the contact of 21 bottom end of spring has check ring 22.
Check ring 22 is in circular ring shape, and 22 bottom end surface of check ring is provided with semi-circular recesses, is equipped with spherical shape in semi-circular recesses
Ball 19, the effect of spherical ball 19 are at the beginning, to prevent lower mandrel 40 from mandrel 1 being followed to rotate.
Referring to Fig. 8,19 downside of spherical ball is contacted with lower tooth block 23.Lower tooth block 23 is internally provided with stepped hole, stepped hole
End face is provided with semi-circular recesses, and spherical ball 19 is equipped in semi-circular recesses, and the effect of spherical ball 19 is initial
When, prevent lower mandrel 40 from mandrel 1 being followed to rotate.Ladder internal surface of hole is provided with annular groove, is equipped in annular groove close
Seal is combined with lower mandrel 40 in sealing ring；Sealing ring is for when preventing circulating mud, mud to be missed from lower tooth block 23.Lower tooth
The top end surface of block 23 is provided with the triangle concave block with chamfering, and triangle concave block can be mutual with the triangular bump of upper tooth block 20
Engagement, to transmit the torque of top driving device.The outer surface of lower tooth block 23 is provided with external screw thread, and external screw thread is used for spring system
6 are installed in mandrel 1.
The main operational principle that casing appliances is driven on a kind of screw drive fully mechanical top of the invention is: 1) slips 41 is radial
Dilating principle: casing appliances protrudes into internal surface of sleeve pipe, and top drives rotation and drives the upper rotation of mandrel 1 (due to the effect of spring 21, at this time
Axial force suffered by lower mandrel 40 is smaller, and upper tooth block 20 is separated with lower tooth block 23, and lower mandrel 40 does not rotate), upper mandrel 1 passes through spline
Connection drives inner cylinder 24 to rotate, and inner cylinder 24 moves axially outer barrel 27 by screw thread, and the axial movement of outer barrel 27 pushes
Slips 41 slides (due to the effect of big bearing 31, slip system 4 cannot follow mandrel 1 to rotate) along wedge surface, due to wedge surface
Dilating effect expands slips 41 outward, thus stretching internal surface of sleeve pipe.2) principle is detained on: after 41 stretching internal surface of sleeve pipe of slips, being mentioned
Casing appliances is risen, at this point, being greater than 21 elastic force of spring in casing gravity, upper tooth block 20 and the lower tooth block 23 of spring system 6 are nibbled
It closes, so that the torque for pushing up drive passes to lower mandrel 40, is detained in realization.3) 41 radial contraction principle of slips: when the single tripping in of casing
After, start top driving device, allows it to reversely rotate, move up outer barrel 27, to pull up slips 41, make slips
41 radial contractions, at this point, under the action of the spring 21, the upper tooth block 20 and lower tooth block 23 of spring system 6 separate.4) casing recycles
Mud principle: since cup packer 51 has self-sealing function, circulating mud at any time can be needed according to scene.
Claims (1)
1. casing appliances is driven on a kind of screw drive fully mechanical top, including upper mandrel (1), threaded drive systems (2), power pass
Delivery system (3), slip system (4), pilot seal system (5), spring system (6), it is characterized in that: outside the upper end of upper mandrel (1)
Surface is provided with external screw thread, and external screw thread drives to be formed with top and be threadedly coupled；The lower end inner surface of upper mandrel (1) is provided with internal screw thread,
Internal screw thread is formed with spring system (6) and is threadedly coupled；Lower mandrel (40) are hung in spring system (6)；Lower mandrel (40) it is upper
Side is cased with power-transmission system (3)；Threaded drive systems (2) have been bolted on the upside of power-transmission system (3) system；Power passes
Slip system (4) are housed on the downside of delivery system (3)；Slip system (4) lower thread is connected with pilot seal system (5)；
The upper end outer surface of the upper mandrel (1) is provided with taper thread, and taper thread is threadedly coupled with top driving device formation；Upper mandrel
(1) center outer surface is provided with external splines (12), and external splines (12) matches to form spline with the spline of inner cylinder (24)
Connection；The lower end inner surface of upper mandrel (1) is provided with internal screw thread (13), and internal screw thread (13) and lower tooth block (23) form screw thread and connect
It connects；
The upper mandrel (1) forms spline with threaded drive systems (2) and connect, and the threaded drive systems (2) include inner cylinder
(24), small bearing (25), small bearing (ball) cover (26), outer barrel (27)；Inner cylinder (24) outer surface is in ladder shaft-like, multi-diameter shaft
Big axis outer surface is provided with external screw thread, and external screw thread is for connecting outer barrel (27)；Threaded hole, spiral shell is arranged in the small axial end of multi-diameter shaft
Pit is for connecting small bearing (ball) cover (26)；The inner surface of inner cylinder (24) is provided with step, and step is provided with spline in upside
Slot, external splines (12) the mutual cooperation transmitting rotary motion of spline and upper mandrel (1)；Small bearing (25) is installed on step lower opening
Interior, for positioning small bearing (25), small bearing (25) is compressed step by small bearing (ball) cover (26)；
Outer barrel (27) inner surface is provided with step, and internal screw thread, internal screw thread and inner cylinder are provided in the circular hole on the upside of step
(24) it is formed and is threadedly coupled；Big bearing (31) is installed in step lower opening, and step is for positioning big bearing (31)；Nose end under step
Face is provided with threaded hole, and bolt passes through threaded hole and is connected with big bearing (ball) cover (32)；
The power-transmission system (3) includes big bearing (31), big bearing (ball) cover (32), slip spider (33), big round nut (34)；
Slip spider (33) inner surface is cased with lower mandrel (40), and slip spider (33) outer surface is stepped；It is provided on the downside of slip spider (33)
The oblique T-slot of opening is equipped with slips (41) in oblique T-slot；It is provided with step (35) on the upside of oblique T-slot, on the upside of step (35)
It is provided with external screw thread (36), big round nut (34) is connected on external screw thread (36)；Big bearing (31) is installed on step (35) and big
Between round nut (34)；Big bearing (31) is by big bearing (ball) cover (32), outer barrel (27) positioning, fastening；Power-transmission system (3)
It can be rotated relative to lower mandrel (40)；
The slip system (4) includes lower mandrel (40), slips (41)；Lower mandrel (40) the top outer surface is provided with outer spiral shell
Line, external screw thread are formed with upper tooth block (20) and are threadedly coupled；It is provided with multi-diameter shaft on the downside of external screw thread, spring system is installed outside multi-diameter shaft
It unites (6)；Outer wedge surface is arranged in the lower side external surface of lower mandrel (40), and slips (41) inside bottom surface is provided with interior wedge surface；Slips
(41) interior wedge surface is installed in the outer wedge surface of lower mandrel (40)；Slips (41) can be radial after the wedge surface sliding of lower mandrel (40)
Distending；Slips (41) outer surface is staggeredly equipped with longitudinal slip insert (42), lateral slip insert (43)；
Lower mandrel (40) lower end is threaded with pilot seal system (5), and pilot seal system (5) includes protrusion-dispelling ring
(50), packing element (51), guide head (52)；Packing element (51) is installed between protrusion-dispelling ring (50) and guide head (52), guide head (52)
It is threadedly coupled with lower mandrel (40)；
Lower mandrel (40) top outer is cased with spring system (6), and spring system (6) includes spherical ball (19), upper tooth block
(20), spring (21), check ring (22), lower tooth block (23)；The upper tooth block (20) is in circular ring shape, the interior table of upper tooth block (20)
Face is provided with internal screw thread, and internal screw thread is connect with the external screw thread on lower mandrel (40) top；The bottom end of upper tooth block (20) is provided with band and falls
The triangular bump at angle；Upper tooth block (20) center bottom compression has spring (21)；
The contact of spring (21) bottom end has check ring (22), and check ring (22) is in circular ring shape, check ring (22) bottom end surface
Semi-circular recesses are provided with, spherical ball (19) are installed in semi-circular recesses；Spherical ball (19) downside and lower tooth block (23)
Contact；
Lower tooth block (23) is internally provided with stepped hole, and ladder hole end surface is provided with semi-circular recesses, is equipped in semi-circular recesses
Spherical ball (19)；Ladder internal surface of hole is provided with annular groove, and sealing ring is equipped in annular groove, is combined in sealing ring
Lower mandrel (40)；The top end surface of lower tooth block (23) is provided with the triangle concave block with chamfering, and triangle concave block can be with upper tooth block
(20) triangular bump intermeshing transmitting torque；The outer surface of lower tooth block (23) is provided with external screw thread, external screw thread and upper core
Axis (1), which is formed, to be threadedly coupled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710097604.6A CN107044260B (en) | 2017-02-22 | 2017-02-22 | Drive casing appliances in a kind of screw drive fully mechanical top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710097604.6A CN107044260B (en) | 2017-02-22 | 2017-02-22 | Drive casing appliances in a kind of screw drive fully mechanical top |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107044260A CN107044260A (en) | 2017-08-15 |
| CN107044260B true CN107044260B (en) | 2018-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710097604.6A Expired - Fee Related CN107044260B (en) | 2017-02-22 | 2017-02-22 | Drive casing appliances in a kind of screw drive fully mechanical top |
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| Country | Link |
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| CN (1) | CN107044260B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973023A (en) * | 2017-12-28 | 2019-07-05 | 中石化石油工程技术服务有限公司 | A kind of telescopic setting of casing segmentation tool |
| CN107965274A (en) * | 2018-01-08 | 2018-04-27 | 西南石油大学 | Spline slip-type drill string coupling arrangement |
| CN108625785B (en) * | 2018-05-14 | 2019-08-02 | 西南石油大学 | A kind of electromagnetic type top drive casing appliances driving head |
| CN110965942A (en) * | 2019-12-18 | 2020-04-07 | 河北华北石油荣盛机械制造有限公司 | Top drive casing running device |
| CN110939391B (en) * | 2019-12-22 | 2021-06-29 | 黑龙江北方双佳钻采机具有限责任公司 | Mechanical type outer card top drive casing running device |
| CN111456629A (en) * | 2020-04-14 | 2020-07-28 | 西安石油大学 | Diameter-variable external-clamping type top-drive casing pipe lowering device |
| CN111706269B (en) * | 2020-06-30 | 2021-07-09 | 四川盐业地质钻井大队 | Reducer and feeding method for feeding surface casing based on non-drilling time well cementation |
| CN112539039A (en) * | 2020-11-27 | 2021-03-23 | 中石化石油机械股份有限公司研究院 | Top drive lower casing sealing device |
| CN112814570B (en) * | 2021-03-12 | 2022-11-01 | 西安石油大学 | Self-driven rotary casing running tool |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101487377B (en) * | 2009-02-26 | 2011-09-07 | 中国石油天然气集团公司 | Method for top-driving casing job of drilling apparatus |
| CN201372722Y (en) * | 2009-02-26 | 2009-12-30 | 中国石油天然气集团公司 | Top drive casing running device |
| US8919452B2 (en) * | 2010-11-08 | 2014-12-30 | Baker Hughes Incorporated | Casing spears and related systems and methods |
| CN103437707B (en) * | 2013-08-30 | 2016-08-10 | 中国石油集团川庆钻探工程有限公司 | It is applicable to the guiding retaining mechanism of sleeve pipe driving head |
| CN103628818B (en) * | 2013-11-28 | 2015-07-15 | 西南石油大学 | Well drilling top drive running casing tool driving head |
| CN203729878U (en) * | 2013-12-20 | 2014-07-23 | 彭广盛 | Mechanical top-drive casing running device |
| CN104234627B (en) * | 2014-09-17 | 2016-08-17 | 中国石油天然气集团公司 | Casing pipe running device and the method for operation is driven based on top |
| CN104775760B (en) * | 2015-04-24 | 2017-04-19 | 西南石油大学 | Multi-hydraulic-cylinder driving type top-drive casing pipe feeding tool |
| CN104975810B (en) * | 2015-07-14 | 2017-03-29 | 黑龙江北方双佳钻采机具有限责任公司 | Drive casing pipe running device in fully mechanical wild card top |
| CN206477792U (en) * | 2017-02-22 | 2017-09-08 | 西南石油大学 | Drive casing appliances in a kind of screw drive fully mechanical top |
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2017
- 2017-02-22 CN CN201710097604.6A patent/CN107044260B/en not_active Expired - Fee Related
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| CN107044260A (en) | 2017-08-15 |
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