CN107313728B - Drill string stabilizer for slowing down shock - Google Patents
Drill string stabilizer for slowing down shock Download PDFInfo
- Publication number
- CN107313728B CN107313728B CN201710529274.3A CN201710529274A CN107313728B CN 107313728 B CN107313728 B CN 107313728B CN 201710529274 A CN201710529274 A CN 201710529274A CN 107313728 B CN107313728 B CN 107313728B
- Authority
- CN
- China
- Prior art keywords
- drill string
- centralizing
- compression spring
- upper body
- stabilizer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003381 stabilizer Substances 0.000 title claims abstract description 27
- 230000035939 shock Effects 0.000 title claims abstract description 13
- 230000006835 compression Effects 0.000 claims description 27
- 238000007906 compression Methods 0.000 claims description 27
- 238000005553 drilling Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 6
- 230000000116 mitigating effect Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Images
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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1042—Elastomer protector or centering means
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (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 invention relates to a drill string stabilizer for slowing down the shock, which can effectively solve the problem that a drill string enters a slim hole and a well wall bump in the drilling process and the tripping process of the drill string stabilizer.
Description
Technical Field
The invention relates to the field of petroleum drilling engineering, in particular to a drill string stabilizer for slowing down shock.
Background
In the drilling construction process, in order to ensure that a drilled well forms a well according to engineering design requirements, a proper drill string stabilizer can be connected into a drill string according to the design requirements, but the conventional drill string stabilizer does not have the functions of anti-jamming and anti-jamming, the drill string stabilizer can be put into the drilled well along with a drill string, when the drill meets a small well and a rock block protruding in the well is drilled, the drill string stabilizer connected into the drill string can be clamped, the drill string is clamped due to the fact that the drill string is put into the drilled well by strong impact under the condition that the ground is unknown, when the ground instrument reacts and an operator finds out, the drill string is clamped, particularly, the drill string stabilizer is put into the drilled well under the complex condition, and the situation is easy to occur, so that the brand-new drill string stabilizer is designed.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a drill string stabilizer for mitigating jarring, which can effectively solve the problems that the drill string enters a small borehole and a borehole wall bump in the drilling process and the tripping process of the drill string stabilizer.
The technical scheme includes that the device comprises an upper body, a spring, a centralizing body and a lower body, wherein the upper part of the upper body is a cylinder with a step arranged inside, the lower part of the upper body is a polygon body, a first compression spring, the centralizing body and a second compression spring are sequentially sleeved on the polygon body, a male thread arranged at the lower end of the upper body is screwed with a female thread arranged at the upper end of the lower body, the inner wall of the centralizing body is the polygon body and matched with the polygon body at the lower part of the upper body, protruding spiral bodies are uniformly distributed on the outer wall of the centralizing body, and a first compression spring and a second compression spring are respectively arranged on two step surfaces at the upper end and the lower end of the centralizing body, so that the centralizing body can be kept in the middle of the polygon body at the lower part of the upper body.
The invention has novel and unique structure, simplicity, reasonableness and good use effect, improves the safety of tools, prolongs the service life, can quickly and effectively lift and lower the drill column to remove the drill column accident, meets the actual requirements on the site, effectively improves the drilling safety environment and the production work efficiency, and is an innovation on the drill column stabilizer.
Drawings
FIG. 1 is a schematic cross-sectional view of the structure of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in the figure 1-2, the invention comprises an upper body, a spring, a centralizing body and a lower body, wherein the upper part of the upper body is a cylinder with a step arranged inside, the lower part of the upper body is a polygon body, a first compression spring 2a, the centralizing body 3 and a second compression spring 2b are sequentially sleeved on the polygon body, a male buckle thread arranged at the lower end part of the upper body is screwed with a female buckle thread arranged at the upper end part of the lower body 6, the inner wall of the centralizing body 3 is a polygon body and matched with the polygon body at the lower part of the upper body, protruding spiral bodies 5 are uniformly distributed on the outer wall of the centralizing body 3, a first compression spring 2a and a second compression spring 2b are respectively arranged on two step surfaces at the upper end and the lower end of the centralizing body 3, the centralizing body 3 can be kept in the middle part of the polygon body at the lower part of the upper body, after a drill string stabilizer is connected on a drill string, the drill string moves downwards along with the drill string, when encountering a slim hole, the centralizing body 3 is blocked, the first compression spring 2a is compressed, hard collision with the slim hole is relieved, when the centralizing body 3 is clamped at the slim hole, the drill string lifting body moves upwards along with the drill string, the first compression spring 2a is pressed upwards and collides with the centralizing body 3 upwards, the drill string is unlocked, when the drill string is lifted, the slim hole is encountered at an upper well section, the centralizing body 3 compresses the second compression spring 2b, hard collision with the slim hole is relieved, when the centralizing body 3 is clamped at the slim hole, the drill string is released downwards, the upper body presses the second compression spring 2b downwards along with the drill string, the centralizing body 3 is collided downwards, and the drill string is unlocked, and in normal drilling, because the centralizing body 3 is sleeved at the lower part of the upper body, impact vibration of the drill string to a well wall can be reduced.
In order to ensure the use effect, the upper body is internally provided with a through hole, and the upper end part is provided with a female thread buckle which is convenient to be connected with a drill stem.
The lower body 6 is a hollow cylinder with threads at two ends, the excircle of the upper end part is step-shaped, the female thread of the upper end part is connected with the male thread of the lower end part of the upper body, and the female step limits the righting body 3 sleeved outside the upper body and the first compression spring 2a and the second compression spring 2b sleeved outside the upper body from falling out, so that the righting body, the first compression spring 2a and the second compression spring are sleeved inside the upper body and the second compression spring 2b, and the upper body and the lower body are guaranteed to be sleeved in a specified range.
The lower part of the upper body and the inner wall of the centralizing body 3 are both 6-8 prisms.
The number of the spiral bodies 5 is 3-5.
The surface of the spiral body 5 is provided with holes for embedding the alloy teeth 4, the alloy teeth 4 are cylinders and are pressed in the holes on the spiral body 5 through tight fit, and the purpose is to increase the wear resistance of the spiral body 5.
The using condition of the shock-absorbing and shock-reducing drill string stabilizer is that the assembled shock-absorbing and shock-reducing drill string stabilizer is connected to a drill string according to design requirements, when the drill string is drilled downwards, the drill string descends along with the drill string, when encountering a slim hole, the centralizing body 3 is blocked, the upper spring 2a is compressed, hard collision with the slim hole is reduced, when the centralizing body 3 is clamped at the slim hole, the drill string upper lifting body ascends along with the drill string, presses the upper spring 2a and upwards hits the centralizing body 3, and the drill string is unlocked. When the drill string is lifted up, the upper well section is blocked by the small well hole, the centralizing body 3 compresses the lower spring 2b to slow down the hard collision with the small well hole, and when the centralizing body 3 is clamped at the small well hole, the drill string lower and upper body presses the spring 2b down along with the drill string and collides the centralizing body 3 down to release the clamping. When drilling normally, because the centralizing body 3 is sleeved on the lower part of the upper body, the impact vibration of the drill string on the well wall can be reduced. Through the application of the shock absorption and mitigation impact drill string stabilizer on the drill string, the problem that shock absorption and mitigation impact are performed in the past is well solved, the safety of a tool is improved, and the service life is prolonged.
The invention has novel and unique structure, is simple and reasonable, enhances the shock absorption and shock mitigation capability of the drill string stabilizer in the drilling process, enhances the safety, can timely and effectively reduce the probability of drill sticking, improves the difficult problem of field operability, reduces the occurrence of underground engineering accidents of well drilling, is convenient to use, has good effect, is innovation on the well drilling stabilizer, and has good economic and social benefits.
Claims (6)
1. A drill string stabilizer for slowing down shock comprises an upper body, a spring, a centralizing body and a lower body, and is characterized in that the upper part of the upper body (1) is a cylinder with a step arranged inside, the lower part of the upper body is a polygon body, a first compression spring (2 a), the centralizing body (3) and a second compression spring (2 b) are sequentially sleeved on the polygon body, a male buckle thread arranged at the lower end part of the upper body (1) and a female buckle thread arranged at the upper end part of the lower body (6) are screwed together, the inner wall of the centralizing body (3) is a polygon body which is matched with the polygon body at the lower part of the upper body (1), protruding spiral bodies (5) are uniformly distributed on the outer wall, the first compression spring (2 a) and the second compression spring (2 b) are respectively arranged on the two step surfaces at the upper end and the lower end of the centralizing body (3), the centralizing body (3) can be kept in the middle of the polygon at the lower part of the upper body (1), when a drill string stabilizer is connected to a drill string, the centralizing body (3) descends along with a drill string, when encountering a slim hole, the centralizing body (3) is blocked, the first compression spring (2 a) is compressed, hard collision with the slim hole is slowed down, when the centralizing body (3) is blocked at the slim hole, the drill string is lifted up by the upper body (1) along with the drill string, the first compression spring (2 a) is upwards pressed and the centralizing body (3) is upwards collided, the centralizing body (3) is unblocked, when the drill string is lifted up, the upper body (1) is blocked at the upper well section along with the drill string, the centralizing body (3) compresses the second compression spring (2 b) to slow down collision with the slim hole, when the centralizing body (3) is blocked at the slim hole, the drill string is lowered down by the upper body (1) along with the drill string, the second compression spring (2 b) is pressed down and the centralizing body (3) And the card is unlocked.
2. A shock absorbing drill string stabiliser as claimed in claim 1 in which the upper body (1) has a through hole therein and the upper end is provided with a female thread for connection to a drill string.
3. The shock-absorbing stabilizer for a drill string as claimed in claim 1, wherein the lower body (6) is a hollow cylinder with threads at both ends, the outer circle of the upper end is stepped, the female thread of the upper end is connected with the male thread of the lower end of the upper body (1), and the female step limits the centralizing body (3) sleeved outside the upper body (1) and the sleeved first compression spring (2 a) and second compression spring (2 b) from falling out to ensure that they are sleeved in a specified range.
4. The shock absorbing stabilizer for a drill string as claimed in claim 1, wherein the lower part of the upper body (1) and the inner wall of the centralizing body (3) are both 6-8 prisms.
5. The shock absorbing drill string stabiliser as claimed in claim 1 wherein the number of said screws (5) is 3-5.
6. The shock absorbing drill string stabiliser as claimed in claim 1, wherein the helical body (5) has holes in its surface for receiving the teeth (4), and the teeth (4) are cylindrical and are press-fitted into the holes in the helical body (5) with a tight fit in order to increase the wear resistance of the helical body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710529274.3A CN107313728B (en) | 2017-07-01 | 2017-07-01 | Drill string stabilizer for slowing down shock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710529274.3A CN107313728B (en) | 2017-07-01 | 2017-07-01 | Drill string stabilizer for slowing down shock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107313728A CN107313728A (en) | 2017-11-03 |
| CN107313728B true CN107313728B (en) | 2023-03-03 |
Family
ID=60181399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710529274.3A Active CN107313728B (en) | 2017-07-01 | 2017-07-01 | Drill string stabilizer for slowing down shock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107313728B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA872671A (en) * | 1971-06-08 | L. Downen Jim | Apparatus for the simultaneous application to an oil well fish of the direct strain of a drill string and an independent jarring blow | |
| DE960261C (en) * | 1952-08-08 | 1957-03-21 | Nuesse & Graefer K G Maschf | Drill bit guide for rotary drilling in mining with expandable guide parts that are elastically attached to the borehole wall |
| US4169505A (en) * | 1978-10-10 | 1979-10-02 | Neal William C | Kick-over apparatus |
| SU973790A1 (en) * | 1980-11-27 | 1982-11-15 | за витель -- - -у : V , | Hydraulic apparatus |
| US5377751A (en) * | 1992-01-29 | 1995-01-03 | Rickert Precision Industries | Apparatus and method for centralizing downhole pipe and blast joints |
| CN201180486Y (en) * | 2007-12-25 | 2009-01-14 | 中国石化集团胜利石油管理局钻井工艺研究院 | Stabilizer used for slim-hole well drilling |
| CN202544754U (en) * | 2012-05-07 | 2012-11-21 | 盐城华亚石油机械制造有限公司 | Screw drilling tool |
| US10100588B2 (en) * | 2012-11-29 | 2018-10-16 | Per Angman | Mixed form tubular centralizers and method of use |
| CN105781444B (en) * | 2016-04-29 | 2018-06-29 | 中国石油大学(北京) | One kind subtracts torsion drop resistance stabilizer |
-
2017
- 2017-07-01 CN CN201710529274.3A patent/CN107313728B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107313728A (en) | 2017-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106368712B (en) | A kind of full face rock tunnel boring machine cutterhead with impact function | |
| US2661928A (en) | Hammer drill | |
| CN103161427B (en) | Multifunctional continuous circulating safety valve | |
| CN203321391U (en) | Clamping block type impact power transmission mechanism for wire line coring impact rotary drilling | |
| CN107313728B (en) | Drill string stabilizer for slowing down shock | |
| CN103291236B (en) | A kind of wire line coring rotary-percussive drilling blocking piece type impacts the mechanism that passes on Gong | |
| RU124304U1 (en) | DRILLING HYDROMECHANICAL SHOCK MECHANISM OF BILATERAL ACTION | |
| CN109057843B (en) | High-elongation impact-resistant anchor rod of anchoring section and anchoring method thereof | |
| CN205532665U (en) | Anchor rope lets presses anti -shock mounting | |
| CN109281627B (en) | Multisection hinge type anti-top dead spring card positioning mechanism | |
| CN2893127Y (en) | Hydraulic safety joint | |
| CN112593884B (en) | Underground continuous downward jarring unclamping device and method | |
| CN106522900B (en) | A kind of two-way blowout-preventing ball seat for the control of well wellbore fluids | |
| CN112727517B (en) | Step-by-step buffering tensile anchor rod adapting to deformation of block-tied rock mass | |
| CN214170487U (en) | Underground continuous downward jarring stuck releasing device | |
| CN213297863U (en) | Spherical spiral wing stabilizer | |
| CN107620572B (en) | A kind of major diameter two-stage combined type artificial diamond compact drill bit | |
| CN106363822A (en) | Steel chisel beneficial for labor protection | |
| CN207033364U (en) | A kind of drilling string stabilizer for slowing down jarring | |
| US3095047A (en) | Hammer drill | |
| SU751956A1 (en) | Drilling tool vibration damping apparatus | |
| CN211370351U (en) | Flow guiding type anti-drop valve | |
| CN208473732U (en) | A kind of structure for preventing damper screw thread to be buckled to | |
| CN205577841U (en) | Oil gas well is water conservancy hammer in pit | |
| CN201843553U (en) | Pyriform device for crushing underground fallen blocks while drilling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |