CN201236628Y - Anti-slanting drill means - Google Patents
Anti-slanting drill means Download PDFInfo
- Publication number
- CN201236628Y CN201236628Y CNU200820109925XU CN200820109925U CN201236628Y CN 201236628 Y CN201236628 Y CN 201236628Y CN U200820109925X U CNU200820109925X U CN U200820109925XU CN 200820109925 U CN200820109925 U CN 200820109925U CN 201236628 Y CN201236628 Y CN 201236628Y
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- friction plate
- central tube
- cylindrical shell
- cylinder body
- seal
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Abstract
An inclining prevention well-drilling device aims to overcome the shortcomings of the prior inclining prevention well-drilling device that the prior inclining prevention well-drilling device has a complex structure, and bearings or rolling balls of the drilling device are vulnerable to damage. The utility model is characterized in that an upper friction plate (5) is fixedly mounted at the lower end of a central tube (2); the axis of an eccentric splice (15) at the lower end of an outer cylinder (8) is parallel to the axis of a cylinder body (14) at the upper end, and the two axes are different from each other; an upper stabilizer (11) and a lower stabilizer (7) are fixedly mounted outside the cylinder body (14); a sealing element (9) and a lower friction plate (6) are mounted inside the cylinder body (14), and the lower friction plate (6) is fixedly connected with the cylinder body (14); the central tube (2) on which the upper friction plate (5) is fixedly mounted is positioned inside a hole on the cylinder body (14); and a lower guide sleeve (4), a damping spring (10), an upper guide sleeve (12) and an upper sealing element (3) are mounted in sequence from bottom to top on the external circumference of the central tube (2), and a sealing gland (13) is fixedly connected with the cylinder body (14). The utility model has the beneficial effect of drilling and controlling the inclining of the well when operating at normal drilling pressure and rotational speed.
Description
Affiliated technical field
The utility model relates to the drilling rig that a kind of drilling engineering uses, and especially relates to a kind of inclination-proof drilling well apparatus that prevents institute's drilling well eye deflection.
Background technology
Drilling well is the basic means of subterranean resource exploration and developments such as petroleum gas.In the drillng operation engineering, in order to control hole deviation, normally used anti-deflection drilling tool combination mainly comprises pendulum assembly, packed hole assembly, eccentric drilling device etc.Under given conditions, above-mentioned drilling assembly has certain anti-tiltedly effect, but its anti-oblique effect is subjected to the influence of drill-well operation parameter bigger, and having to sometimes with sacrifice speed is that cost exchanges less hole deviation rate for.
There also have multiple eccentric type drilling well preventing slant to put in recent years to be open, as: disclosed Chinese invention patent on March 1st, 2006 " the vertical drilling preventing slant is put " is (CN1243904C), 2007 disclosed Chinese invention patent application on May 2, " automatic anti-oblique well drilling tool " (CN1955437A), 2007 disclosed Chinese invention patent application on August 29, " automatic inclination-proof drilling well apparatus " (CN101025075A), disclosed Chinese utility model patent on February 1st, 2006 " automatic anti-oblique device " ((CN2755265Y), above-mentioned drilling well preventing slant is put by eccentric structures such as eccentric block or pistons, adopt bearing or roll structure to reduce frictional resistance, prevent institute's drilling well eye deflection in drilling engineering.Because in drilling operation course, the impurity in the stressed complexity of drill string, well is many, fluid course obstruction easily, bearing or ball narrow in the said apparatus damage easily, make preventing slant put cisco unity malfunction, influence normally carrying out of drillng operation.
The utility model content
There is complex structure in order to overcome existing inclination-proof drilling well apparatus, bearing or ball are fragile, influence the deficiency of device operate as normal, the utility model provides a kind of inclination-proof drilling well apparatus, it is less that the anti-oblique effect of this inclination-proof drilling well apparatus is influenced by drilling parameters such as the pressure of the drill, rotating speed, has the bit side force size and do not change with the pressure of the drill substantially and bit side force direction continuous characteristic that changes in rotary course.
The technical scheme that its technical problem that solves the utility model adopts is: inclination-proof drilling well apparatus comprises central tube, centralizer, the central tube center is a through hole, the central tube upper end is connected with drill string by joint, the central tube cylindrical is a step axle broad in the middle small in ends, is installed with upper friction plate on the lower end cylindrical of central tube middle bench; The urceolus upper end is an eccentric joint for cylindrical shell, lower end, lower end eccentric joint axis and disalignment parallel with tubular axis; Cylindrical shell excircle upper end is installed with stabilizer, and the bottom is installed with down stabilizer; The cylindrical shell endoporus is up big and down small shoulder hole, in the shoulder hole of bottom seal is installed, and the top of seal is equipped with down friction plate, and following friction plate is fixedlyed connected with cylindrical shell; The central tube that is installed with upper friction plate is arranged in the cylindrical shell endoporus, and the upper friction plate lower surface contacts with following friction plate upper surface; The upper end excircle of central tube middle bench is equipped with down fairlead, damping spring from the bottom to top successively, goes up fairlead, goes up seal; The gland that is positioned at the seal top is fixedlyed connected with cylindrical shell.
The beneficial effects of the utility model are, and are simple in structure, are easy to make, and can creep under normal the pressure of the drill and speed conditions, and hole deviation is controlled within the small range.
Description of drawings
Fig. 1 is the utility model inclination-proof drilling well apparatus schematic diagram.
Among the figure: 1. joint, 2. central tube is 3. gone up seal, 4. descends fairlead, 5. upper friction plate, 6. descend friction plate, 7. descend stabilizer, 8. urceolus, 9. seal, 10. damping spring, 11. last stabilizer, fairlead on 12., 13. glands, 14. cylindrical shells, 15. eccentric joints.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
The utility model inclination-proof drilling well apparatus comprises central tube 2, urceolus 8, and central tube 2 upper ends are connected with drill string by joint 1.
Central tube 2 centers are through hole, and central tube 2 cylindricals are step axle broad in the middle small in ends, are installed with upper friction plate 5 on the lower end cylindrical of central tube 2 middle benches.
Urceolus 8 upper ends are that cylindrical shell 14, lower end are eccentric joint 15, lower end eccentric joint 15 axis and the parallel and disalignment of cylindrical shell 14 axis, and eccentric joint 15 is connected with drill bit with drill bit or by short circuit.
The central tube 2 that is installed with upper friction plate 5 is arranged in cylindrical shell 14 endoporus, and upper friction plate 5 lower surfaces contact with following friction plate 6 upper surfaces, and upper friction plate 5, following friction plate 6 are the disc type friction plate.The upper end excircle of central tube 2 middle benches is equipped with down fairlead 4, damping spring 10 from the bottom to top successively, goes up fairlead 12, goes up seal 3, and the gland 13 that is positioned at seal 3 tops is fixedlyed connected with cylindrical shell 14.
The utility model inclination-proof drilling well apparatus, upper friction plate 5 is fixedly connected with pressure-bearing central tube 2, and following friction plate 6 is fixedly connected with urceolus 8, passes through frictional drive, pressure-bearing central tube 2 drives urceolus 8 rotations, and the eccentric joint 15 of urceolus 8 bottoms directly or by short circuit is connected with drill bit.According to the drilling technology needs, determine the eccentric throw of eccentric joint 15 axis and cylindrical shell 14 axis; Set drill string and pass to the peak torque of drill bit by adjusting the pressure of the drill and spring rate, thereby can avoid drill teeth to bear moment of torsion, protect drill bit effectively and prolong its application life above its load-bearing capacity.Because urceolus 8 is pressurized not, there is not the problem of pressurized unstability, very little by the flexural deformation that the pressure of the drill causes, average and the pressure of the drill size in one week of bit side force are irrelevant substantially; Inclination-proof drilling well apparatus and centrifugal force based on the anti-oblique principle design of drill bit revolution are irrelevant, so it can normally creep into any rotating speed class, in the hole axis rotation, drill bit will revolve round the sun around hole axis at urceolus 8.
Claims (3)
1. an inclination-proof drilling well apparatus comprises central tube, centralizer, and the central tube center is a through hole, and the central tube upper end is connected with drill string by joint, it is characterized in that:
Central tube (2) cylindrical is a step axle broad in the middle small in ends, is installed with upper friction plate (5) on the lower end cylindrical of central tube (2) middle bench;
Urceolus (8) upper end is eccentric joint (15) for cylindrical shell (14), lower end, lower end eccentric joint (15) axis and the parallel and disalignment of cylindrical shell (14) axis;
Cylindrical shell (14) excircle upper end is installed with stabilizer (11), and the bottom is installed with down stabilizer (7);
Cylindrical shell (14) endoporus is up big and down small shoulder hole, and seal (9) is installed in the hole, and the top of seal (9) is equipped with down friction plate (6), and following friction plate (6) is fixedlyed connected with cylindrical shell (14);
The central tube (2) that is installed with upper friction plate (5) is arranged in cylindrical shell (14) endoporus, and upper friction plate (5) lower surface contacts with following friction plate (6) upper surface; The upper end excircle of central tube (2) middle bench is equipped with down fairlead (4), damping spring (10) from the bottom to top successively, goes up fairlead (12), goes up seal (3), and the gland (13) that is positioned at seal (3) top is fixedlyed connected with cylindrical shell (14).
2. inclination-proof drilling well apparatus according to claim 1 is characterized in that: described upper friction plate (5), following friction plate (6) are the disc type friction plate.
3. inclination-proof drilling well apparatus according to claim 2 is characterized in that: described cylindrical shell (14) endoporus has 3 shoulder holes at least, and seal (9) is installed in the shoulder hole of bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820109925XU CN201236628Y (en) | 2008-08-13 | 2008-08-13 | Anti-slanting drill means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820109925XU CN201236628Y (en) | 2008-08-13 | 2008-08-13 | Anti-slanting drill means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201236628Y true CN201236628Y (en) | 2009-05-13 |
Family
ID=40649367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820109925XU Expired - Fee Related CN201236628Y (en) | 2008-08-13 | 2008-08-13 | Anti-slanting drill means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201236628Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787837A (en) * | 2011-05-18 | 2012-11-21 | 上海市基础工程有限公司 | Process for detecting and controlling verticality of bored pile drill pipe |
-
2008
- 2008-08-13 CN CNU200820109925XU patent/CN201236628Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787837A (en) * | 2011-05-18 | 2012-11-21 | 上海市基础工程有限公司 | Process for detecting and controlling verticality of bored pile drill pipe |
| CN102787837B (en) * | 2011-05-18 | 2015-10-14 | 上海市基础工程集团有限公司 | Measuring for verticality and Controlling Technology in bored pile drilling rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20090914 |