CN207499830U - A kind of flexibility ultra-short radius boring bar tool - Google Patents
A kind of flexibility ultra-short radius boring bar tool Download PDFInfo
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- CN207499830U CN207499830U CN201721686692.5U CN201721686692U CN207499830U CN 207499830 U CN207499830 U CN 207499830U CN 201721686692 U CN201721686692 U CN 201721686692U CN 207499830 U CN207499830 U CN 207499830U
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- drill bit
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Abstract
The utility model discloses a kind of flexible ultra-short radius boring bar tool, including nipple, fixed pin, ball rod, ball-and-socket housing, club housing, torsion pass spring, bearing ball-and-socket, drill bit；Bearing ball-and-socket, ball rod, ball-and-socket housing, club housing and fixed pin, which cooperate to form, is hinged section, wherein：Bearing ball-and-socket is built in the ball-and-socket housing being mutually inserted, and ball rod is mutually inserted and is fixedly connected with club housing；Several sections that are hinged are serially connected, and head and the tail both ends are fixedly connected respectively with nipple, drill bit, form the flexible shaft structure of tool；It is sleeved on outside flexible shaft structure outside torsion pass spring is multiple.The utility model transmits torsion and Tensile or Compressive Loading by using mutually independent structure, in casing in ultra-short radius bore operation, life tools are long, it is big to transmit load, can one-time continuous drill the rock of casing, cement sheath and certain depth, the overall efficiency that ultra-short radius drills in casing can be effectively improved.
Description
Technical field
The utility model is related to oil gas field pit shaft engineering technical field of tools more particularly to a kind of flexible ultra-short radius drillings
Tool.
Background technology
Ultra-short radius drilling technique can provide a plurality of gas channel for oil well in casing, increase drainage area, effectively carry
The high rate of oil and gas recovery；Compared with traditional perforating technology, ultra-short radius drilling technique can not only obtain deeper oil gas in casing
Channel, while avoid the pollution to stratum and the destruction to casing and cement sheath, obvious effect of increasing production.The prior art is directed to
The different attribute of casing, cement sheath and formation rock carries out operation using two kinds of flexible drill strings, and boring a hole needs repeatedly to remove
Bore, casing cement sheath milling tool therein, plastic deformation and load transmission realized by same structure because structure size by
Space limitation in casing, excessive tool plastic deformation frictional resistance frequently result in life tools and do not grow, and then cause casing
The overall construction efficiency of interior ultra-short radius drilling is relatively low.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of flexible ultra-short radius boring bar tool, by using mutually solely
Vertical structure transmits torque and Tensile or Compressive Loading, extends life tools, increases the ability for transmitting load, can one-time continuous drill
The rock of casing, cement sheath and certain depth can effectively improve the overall efficiency that ultra-short radius drills in casing.
Technical solution is used by the utility model solves its technical problem：A kind of flexibility ultra-short radius boring bar tool,
Including nipple, fixed pin, ball rod, ball-and-socket housing, club housing, torsion pass spring, bearing ball-and-socket, drill bit；Bearing ball-and-socket,
Ball rod, ball-and-socket housing, club housing and fixed pin, which cooperate to form, is hinged section, wherein：Bearing ball-and-socket is built in mutually
The ball-and-socket housing of grafting is simultaneously fixedly connected by fixed pin, and ball rod ball head split-phase can be one for ball-and-socket housing ball-and-socket part
Determine to be freely rotated in range, ball rod is mutually inserted and passes through fixed pin and is fixedly connected with club housing, is hinged section both ends point
It is not ball-and-socket housing and ball rod；Several sections that are hinged are serially connected, and head and the tail both ends are ball rods and are connect respectively with screw thread
Head, drill bit are fixedly connected by fixed pin, are formed the flexible shaft structure of tool, can be transmitted Tensile or Compressive Loading and circulating fluid；
It is sleeved on outside flexible shaft structure outside torsion pass spring is multiple, nipple is fixed in one end, and the other end is fixed on drill bit, realizes that screw thread connects
The torque of head to drill bit transmits.
Above-mentioned technical proposal can advanced optimize as follows：
The nipple is hollow cylinder；The big end endoporus of cylinder is the connection spiral shell for connecting overhead power input unit
Line can input circulation fluid；On the outside of big end cylinder in the middle part of cylinder, axial uniformly distributed multiple connector spring card slots；The small end of cylinder
External cylindrical surface is connector spring supporting face, the multiple symmetrical fixed connector pin holes of radial equipartition on the cylinder of big end.
The revolving body that the ball rod is made of orbicule and rhabodoid, centre are club runners；Rhabodoid end side
Uniformly distributed two club boss, single club boss retain 1/4 for sidewall end face ring bodies on wall；It hangs down among club boss side surfaces
Directly in the fixation bulb pin hole of revolving body axis direction arrangement perforation.
The ball-and-socket housing is shell-like revolving body, and lateral surface is ball-and-socket spring supporting face, and one end medial surface is hemispherical shell
Body spherical surface, uniformly distributed two ball-and-socket boss, single ball-and-socket boss retain 1/4 for sidewall end face ring bodies on other end side wall；In ball
Nest boss side surfaces intermediate vertical is in the fixation ball-and-socket shell pin hole of revolving body axis direction arrangement perforation.
The bearing ball-and-socket is hollow revolving body, and centre is ball-and-socket runner, and endoporus axial arranged hemispherical ball-and-socket in both ends is held
Pressure surface, revolving body middle part radial equipartition run through 4 fixation ball-and-socket pin holes of side wall.
The drill bit is the revolving body on mushroom pinnacle, and one end is mushroom head, and the other end is bit sub；In mushroom head,
Uniformly distributed multiple hydrophthalmias；Mushroom cone outboard shafts are made to uniformly multiple round bottom section slots, half as drill bit spring card slot, half
For sink；Bit sub external cylindrical surface is drill bit spring supporting face, the multiple fixation brills through side wall of radial equipartition on cylinder
Head pin hole.
The mushroom head is formed by diamond and sintering cemented carbide.
The utility model has following advantageous effect relative to the prior art：A kind of flexibility ultra-short radius boring bar tool
Torque is transmitted using spring structure, bit pressure is transmitted using section string is hinged, circulation fluid can be transmitted by being hinged the intermediate perforation of section string,
Tool rotary drilling in predetermined trajectory, long lifespan, the ability for transmitting load is big, can one-time continuous drill casing, cement sheath and
The rock of certain depth can effectively improve the overall efficiency that ultra-short radius drills in casing.
Description of the drawings
Fig. 1 is a kind of flexible ultra-short radius boring bar tool structure diagram；
Fig. 2 is screw-thread joint structure schematic diagram；
Fig. 3 is ball rod structure diagram；
Fig. 4 is ball-and-socket housing structure diagram；
Fig. 5 is socket arrangement schematic diagram；
Fig. 6 is drill bit structure schematic diagram.
In upper figure：1- nipples, 101- connection screw threads, 102- connector spring card slots, 103- connector pin holes, 104- connectors
Spring supporting face, 2- fixed pins, 3- ball rods, 301- club boss, 302- orbicules, 303- bulb pin holes, 304- club streams
Road, 4- ball-and-socket housings, 401- ball-and-socket boss, 402- ball-and-socket shell pin holes, 403- ball-and-socket spring supportings face, 404- housing spherical surfaces, 5-
Club housing, 6- torsion pass springs, 7- bearing ball-and-sockets, 701- pressure-bearing ball-and-sockets face, 702- ball-and-socket runners, 703- ball-and-socket pin holes, 8- are bored
Head, 801- drill bit pin holes, 802- drill bit spring supportings face, 803- drill bit spring card slots, 804- bit ports, 805- mushroom heads.
Specific embodiment
It elaborates below in conjunction with the accompanying drawings to the utility model：
As shown in Figure 1, a kind of flexible ultra-short radius boring bar tool that the utility model is mentioned, including nipple 1, is fixed
Pin 2, ball rod 3, ball-and-socket housing 4, club housing 5, torsion pass spring 6, bearing ball-and-socket 7, drill bit 8；Support ball-and-socket 7, ball rod 3,
Ball-and-socket housing 4, club housing 5 and fixed pin 2, which cooperate to form, is hinged section, wherein：Bearing ball-and-socket 7, which is built in, to be mutually inserted
Ball-and-socket housing 4 and be fixedly connected by fixed pin 2,3 ball head split-phase of ball rod can be one for 4 ball-and-socket part of ball-and-socket housing
Determine to be freely rotated in range, ball rod 3 is mutually inserted and passes through fixed pin 2 and is fixedly connected with club housing 5, is hinged section both ends
It is ball-and-socket housing 4 and ball rod 3 respectively；Several sections that are hinged are serially connected, head and the tail both ends be ball rod 3 and respectively with spiral shell
Line connector 1, drill bit 8 are fixedly connected by fixed pin 2, form the flexible shaft structure of tool, can transmit Tensile or Compressive Loading and cycle
Drilling fluid；More than 6, torsion pass spring is outer to be sleeved on outside flexible shaft structure, and nipple 1 is fixed in one end, and the other end is fixed on drill bit 8,
The torque for realizing nipple 1 to drill bit 8 transmits.
As shown in Fig. 2, the nipple 1 is hollow cylinder；The big end endoporus of cylinder is connection overhead power input
The connection screw thread 101 of device, can input circulation fluid；On the outside of big end cylinder in the middle part of cylinder, axial uniformly distributed multiple connector springs
Card slot 102；The small end external cylindrical surface of cylinder is connector spring supporting face 104, and radial equipartition is multiple right on the cylinder of big end
The fixation of title connector pin hole 103.
As shown in figure 3, the revolving body that the ball rod 3 is made of orbicule 302 and rhabodoid, centre is club runner
304；Uniformly distributed two club boss 301, single club boss 301 retain 1/ for sidewall end face ring bodies in rhabodoid end sidewalls
4；In 301 side intermediate vertical of club boss in the fixation bulb pin hole 303 of revolving body axis direction arrangement perforation.
As shown in figure 4, the ball-and-socket housing 4 is shell-like revolving body, lateral surface is ball-and-socket spring supporting face 403, in one end
Side is hemispherical housing spherical surface 404, and two ball-and-socket boss 401 are evenly distributed on other end side wall, and single ball-and-socket boss 401 is side wall
End face ring bodies retention 1/4；In 401 side intermediate vertical of ball-and-socket boss in the fixation ball of revolving body axis direction arrangement perforation
Nest shell pin hole 402.
As shown in figure 5, the bearing ball-and-socket 7 is hollow revolving body, centre is ball-and-socket runner 702, both ends endoporus axial direction cloth
Hemispherical ball-and-socket pressure-bearing surface 701 is put, revolving body middle part radial equipartition runs through 4 fixation ball-and-socket pin holes 703 of side wall.
As shown in fig. 6, the drill bit 8 is the revolving body on mushroom pinnacle, one end is mushroom head 805, and the other end is drill bit
Handle 802；In mushroom head 805, uniformly distributed multiple hydrophthalmias 804；Axial uniformly distributed multiple round bottom section slots on the outside of 805 cone of mushroom head,
Half is as drill bit spring card slot 803, and half is as sink；802 external cylindrical surface of bit sub is drill bit spring supporting face 802,
Radial equipartition multiple fixations through side wall drill bit pin hole 801 on cylinder.
The mushroom head（805）Formed by diamond and sintering cemented carbide, it both with diamond hardness with it is wear-resisting
Property, and intensity and toughness with hard alloy.
A kind of flexible ultra-short radius boring bar tool that the utility model is mentioned, it is as follows using process：It is ultrashort in casing
During radius drilling construction, flexibility ultra-short radius boring bar tool is threadedly attached in power drilling tool lower end, tripping in tool string is straight
To flexible ultra-short radius boring bar tool sleeve side walls are touched across steering gear；Certain magnitude is applied using automatic pressurizing device
Bit pressure starts power drilling tool, and torque is transmitted by torsion pass spring 6, and bit pressure is transferred to drill bit 8 by being hinged section string；Circulation fluid
It is returned in casing along annular space again by flexible ultra-short radius boring bar tool intermediate flow channel to drill bit 8, drilling cuttings edge plays torsion pass spring 6
Helical openings it is counter go out in casing；Stop drilling until flexible ultra-short radius boring bar tool fully enters steering gear, take out all
In tool string to casing, then creep into next hole.
Claims (7)
1. a kind of flexibility ultra-short radius boring bar tool, it is characterized in that：Including nipple（1）, fixed pin（2）, ball rod（3）、
Ball-and-socket housing（4）, club housing（5）, torsion pass spring（6）, bearing ball-and-socket（7）, drill bit（8）；Support ball-and-socket（7）, ball rod
（3）, ball-and-socket housing（4）, club housing（5）And fixed pin（2）The composition that cooperates is hinged section, wherein：Support ball-and-socket（7）It is interior
It is placed in the ball-and-socket housing being mutually inserted（4）And by fixed pin（2）It is fixedly connected, ball rod（3）Ball head split-phase is for ball-and-socket shell
Body（4）Ball-and-socket part can be freely rotated in a certain range, ball rod（3）It is mutually inserted and passes through fixed pin（2）With club
Housing（5）It is fixedly connected, it is ball-and-socket housing respectively to be hinged section both ends（4）And ball rod（3）；Several sections that are hinged are serially connected in one
It rises, head and the tail both ends are ball rods（3）And respectively with nipple（1）, drill bit（8）Pass through fixed pin（2）It is fixedly connected, forms
The flexible shaft structure of tool can transmit Tensile or Compressive Loading and circulating fluid；Torsion pass spring（6）Flexible shaft structure is sleeved on outside multiple
Outside, nipple is fixed in one end（1）, the other end is fixed on drill bit（8）, realize nipple（1）To drill bit（8）Torque pass
It passs.
2. a kind of flexible ultra-short radius boring bar tool according to claim 1, it is characterized in that：The nipple（1）It is
Hollow cylinder；The big end endoporus of cylinder is the connection screw thread for connecting overhead power input unit（101）, circulation fluid can be inputted；
On the outside of big end cylinder in the middle part of cylinder, axial uniformly distributed multiple connector spring card slots（102）；The small end external cylindrical surface of cylinder is to connect
Head spring supporting face（104）, the multiple symmetrical fixed connector pin holes of radial equipartition on the cylinder of big end（103）.
3. a kind of flexible ultra-short radius boring bar tool according to claim 1, it is characterized in that：The ball rod（3）Be by
Orbicule（302）With the revolving body of rhabodoid composition, centre is club runner（304）；It is two uniformly distributed in rhabodoid end sidewalls
Club boss（301）, single club boss（301）For sidewall end face ring bodies retention 1/4；In club boss（301）In side
Between perpendicular to revolving body axis direction arrangement perforation fixation bulb pin hole（303）.
4. a kind of flexible ultra-short radius boring bar tool according to claim 1, it is characterized in that：The ball-and-socket housing（4）It is
Shell-like revolving body, lateral surface are ball-and-socket spring supporting faces（403）, one end medial surface is hemispherical housing spherical surface（404）, the other end
Uniformly distributed two ball-and-socket boss on side wall（401）, single ball-and-socket boss（401）For sidewall end face ring bodies retention 1/4；It is convex in ball-and-socket
Platform（401）Side intermediate vertical is in the fixation ball-and-socket shell pin hole of revolving body axis direction arrangement perforation（402）.
5. a kind of flexible ultra-short radius boring bar tool according to claim 1, it is characterized in that：The bearing ball-and-socket（7）It is
Hollow revolving body, centre are ball-and-socket runners（702）, the axial arranged hemispherical ball-and-socket pressure-bearing surface of both ends endoporus（701）, in revolving body
Portion's radial equipartition runs through 4 fixation ball-and-socket pin holes of side wall（703）.
6. a kind of flexible ultra-short radius boring bar tool according to claim 1, it is characterized in that：The drill bit（8）It is mushroom
The revolving body on shape pinnacle, one end are mushroom heads（805）, the other end is bit sub；In mushroom head（805）It is interior, uniformly distributed multiple hydrophthalmias
（804）；Mushroom head（805）Axial uniformly distributed multiple round bottom section slots on the outside of cone, half is as drill bit spring card slot（803）, half
Number is as sink；Bit sub external cylindrical surface is drill bit spring supporting face（802）, radial equipartition is multiple through side wall on cylinder
Fixed drill bit pin hole（801）.
7. a kind of flexible ultra-short radius boring bar tool according to claim 6, it is characterized in that：The mushroom head（805）By
Diamond and sintering cemented carbide form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721686692.5U CN207499830U (en) | 2017-12-07 | 2017-12-07 | A kind of flexibility ultra-short radius boring bar tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721686692.5U CN207499830U (en) | 2017-12-07 | 2017-12-07 | A kind of flexibility ultra-short radius boring bar tool |
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| Publication Number | Publication Date |
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| CN207499830U true CN207499830U (en) | 2018-06-15 |
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| CN201721686692.5U Active CN207499830U (en) | 2017-12-07 | 2017-12-07 | A kind of flexibility ultra-short radius boring bar tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806332A (en) * | 2017-12-07 | 2018-03-16 | 中国石油大学(华东) | A kind of flexible ultra-short radius boring bar tool |
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2017
- 2017-12-07 CN CN201721686692.5U patent/CN207499830U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806332A (en) * | 2017-12-07 | 2018-03-16 | 中国石油大学(华东) | A kind of flexible ultra-short radius boring bar tool |
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