CN107842307B - Torsion impactor for well drilling and method - Google Patents
Torsion impactor for well drilling and method Download PDFInfo
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- CN107842307B CN107842307B CN201711191005.7A CN201711191005A CN107842307B CN 107842307 B CN107842307 B CN 107842307B CN 201711191005 A CN201711191005 A CN 201711191005A CN 107842307 B CN107842307 B CN 107842307B
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- pressure
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- 238000005553 drilling Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 239000012530 fluid Substances 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000011435 rock Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims 1
- 210000002445 nipple Anatomy 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000003116 impacting effect Effects 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005755 formation reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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
- E21B1/00—Percussion drilling
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- 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
- E21B10/00—Drill bits
- E21B10/36—Percussion drill bits
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- 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 torsion impactor for well drilling and a method. The technical scheme is as follows: the filter screen is arranged at the lower part of the inner side of the upper joint, the upper disc is arranged at the joint of the upper joint and the outer cylinder, the upper disc is provided with two valve holes A, the inner side of the outer cylinder is provided with a center hole, the outer side of the center hole is provided with an impact block, the bottom of the impact block is provided with an impact block bottom bearing sheet, the outer side of the impact block is provided with a fixed valve block, the lower part of the impact block bottom bearing sheet is provided with a lower disc, the upper part of the fixed valve block is provided with an inlet disc, the two sides of the inlet disc are symmetrically arranged, two liquid guide holes are respectively formed in the two sides, a first liquid guide hole B and a second liquid guide hole C are formed in the lower disc, and four elliptical pressure relief holes are formed in the lower disc. The invention has the beneficial effects that: the invention adopts a mode of directly impacting the tool body to realize high-frequency torsion impact on the drill bit, and the impact hammer directly acts on the drilling tool body, so the structure is simpler, the use is more reliable, and the service life is greatly prolonged.
Description
Technical Field
The invention relates to a drilling tool, in particular to a torsion impactor for drilling and a method.
Background
Drilling deep well hard formations, ultra-hard formations and highly abrasive formations has been a worldwide and common problem to date. In the stratum well drilling, the mechanical drilling speed is slow, the bouncing drilling is serious, the straight well is difficult to prevent and correct inclination, the drilling tool has many accidents, the drill bit and the centralizer are seriously worn, the well diameter is not good, and the like. The stratum is hard, the abrasiveness is strong, the lithology changes greatly, the drillability is poor, only 1-2 meters are drilled in one day sometimes, and the drilling efficiency is very low. The drilling effect of many types of drill bits is poor and the service life is short due to the fact that the stratum is heterogeneous, the number of interlayers is large, hardness and softness are staggered, poor bouncing and drilling are serious, and drilling tool accidents are frequent. The teeth of the insert cone bit are quickly broken by impact and quickly worn; the diamond bit has small bit pressure and poor penetration, the bit pressure is large, the torque is too large, and the phenomenon of 'stick-slip' happens all the time, namely bit braking-drill column severe torsion-drill column and part of drill column release torque to accelerate rotation. This phenomenon is not effective in cutting the formation and is prone to drill string back-off. At present, the torque impact tools developed to solve the above problems have different methods for realizing torque impact, and from the viewpoint of driving modes, the torque impact tools can be divided into a drilling fluid indirect driving type and a drilling fluid direct driving type.
Disclosure of Invention
The invention aims to provide a torsion impactor for well drilling and a method thereof aiming at the defects in the prior art.
The invention provides a torque impactor for well drilling, which adopts the technical scheme that: the pipe joint comprises a short section, the short section comprises an upper joint and an outer cylinder, a drill rod female buckle is arranged at the upper end of the upper joint, a drill bit female buckle is arranged at the lower end of the outer cylinder, the upper joint and the outer cylinder are connected through threads, an upper disc, a lower disc, a fixed valve block, an impact block, an inlet disc, the impact block, an impact block bottom bearing sheet and a filter screen are arranged in the short section, the filter screen is arranged at the lower part of the inner side of the upper joint, the upper disc is arranged at the joint of the upper joint and the outer cylinder, two valve holes A are formed in the upper disc, a central hole is formed in the inner side of the outer cylinder, the impact block is arranged outside the central hole, the impact block bottom bearing sheet is arranged at the bottom of the impact block, the fixed valve block is arranged on the outer side of the impact block, the fixed valve block is connected with the outer cylinder through a valve block positioning pin, the lower disc is arranged at the lower part of the impact block bottom bearing sheet, and the lower disc is connected with the bottom of the fixed valve block through a lower disc fixing bolt, the upper part of the fixed valve block is provided with an inlet disc, the two sides of the inlet disc are symmetrically arranged, two liquid guide holes, a first liquid guide hole B and a second liquid guide hole C are respectively arranged on the two sides, and four elliptical pressure relief holes are formed in the lower disc.
And the containing cavities formed among the two valve holes A, the first liquid guide hole B, the second liquid guide hole C, the pressure relief hole, the impact block and the fixed valve block form a first pressure cavity a and a second pressure cavity B.
The first pressure chamber a and the second pressure chamber b can be switched between a high pressure chamber and a low pressure chamber.
The upper disc is fixed with the impact block through screws, and the upper disc and the inlet disc of the fixed valve block are in plane contact sealing.
The first liquid guide hole B is communicated with the first pressure cavity a; the second liquid guide hole C is communicated with the second pressure chamber b.
The inlet disc, the lower disc and the upper disc are made of tungsten steel.
The invention provides a using method of a torque impactor for well drilling, which comprises the following steps:
the upper part of an upper joint is connected with a drill rod through a drill rod female buckle, the lower part of an outer cylinder is connected with a drill bit through a drill bit female buckle, the device is put into a well through wellhead equipment, most drilling fluid passes through a central hole and generates certain pressure drop, the power of the device comes from the pressure drop, when the drilling fluid is filtered by a filter screen and then enters a first fluid guide hole B on an inlet disc sheet at the upper part of a fixed valve block through a valve hole A of an upper disc sheet, a pressure relief hole at the bottom of a pressure cavity a is sealed, the pressure cavity a becomes a high-pressure cavity, and the pressure pushes an impact block to rotate anticlockwise to impact the fixed valve block to impact the outer cylinder anticlockwise; at the moment, the first liquid guide hole B is closed, the valve hole A is communicated with the second liquid guide hole C on the inlet disc, the pressure relief hole at the bottom of the pressure cavity B is closed, the pressure cavity B becomes a high-pressure cavity, the pressure pushes the impact block to rotate clockwise and impact the fixed valve block to impact the outer cylinder clockwise, so that the drill bit is subjected to impact force of clockwise rotation, and the teeth of the drill bit can cut stratum rocks better; the rotational impact of the impact block is a high frequency impact.
The invention has the beneficial effects that: the invention is provided with an inlet disc, a lower disc and an upper disc, prevents drilling fluid from eroding a valve hole, has better plane sealing effect, plays the role of a sliding bearing, can stably work for a long time, and saves devices such as an impeller, a turbine, a screw motor and the like for converting the drilling fluid into torque compared with a tool indirectly driven by the drilling fluid.
Drawings
FIG. 1 is a cross-sectional view of the structure of the present invention;
FIG. 2 is a cross-sectional view taken at the F-F position of the present invention;
FIG. 3 is a cross-sectional view taken at a D-D location of the present invention;
FIG. 4 is a cross-sectional view taken at the E-E position of the present invention;
FIG. 5 is a schematic structural view of a lower disc;
in the figure: the device comprises an outer cylinder 1, a valve block positioning pin 2, a fixed valve block 3, an inlet disc 4, a lower disc 5, a lower disc fixing bolt 6, an impact block 7, an upper disc 8, a screw 9, an impact block bottom bearing sheet 10, an upper joint 11 and a filter screen 12.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Referring to fig. 1, the torsion impactor for drilling provided by the invention comprises a short section, wherein the short section comprises an upper joint 11 and an outer cylinder 1, the upper end of the upper joint 11 is provided with a drill rod box, the lower end of the outer cylinder 1 is provided with a drill bit box, the upper joint 11 is in threaded connection with the outer cylinder 1, the short section internally comprises an upper disc 8, a lower disc 5, a fixed valve block 3, an impact block 7, an inlet disc 4, an impact block 7, an impact block bottom bearing sheet 10 and a filter screen 12, the lower part of the inner side of the upper joint 11 is provided with the filter screen 12, the joint of the upper joint 11 and the outer cylinder 1 is provided with the upper disc 8, the upper disc 8 is provided with two valve holes a, the inner side of the outer cylinder 1 is provided with a central hole, the outer side of the central hole is provided with the impact block 7, the bottom bearing sheet 10 of the impact block 7 is provided with the impact block bottom, the outer side of the impact block 7 is provided with the fixed valve block 3, the fixed valve block 3 is connected with the outer cylinder 1 through a valve block positioning pin 2, be equipped with down disc 5 in the lower part of impact block bottom bearing piece 10, lower disc 5 is connected with the bottom of fixed valve piece 3 through lower disc fixing bolt 6, upper portion at fixed valve piece 3 is equipped with entry disc 4, the both sides of entry disc 4 set up for the symmetry, two drain holes have been seted up respectively in both sides, first drain hole B and second drain hole C for leading-in high-pressure drilling fluid, it has four oval pressure release holes to open on lower disc 5, the pressure release hole is used for the pressure release when high-pressure chamber converts the low-pressure chamber into.
Referring to fig. 3, the first pressure chamber a and the second pressure chamber B are formed by the two valve holes a, the first liquid guide hole B, the second liquid guide hole C, and the pressure relief hole, the impact block 7, and the holding chamber formed between the fixed valve block 3.
In addition, the first pressure cavity a and the second pressure cavity b can be switched between a high-pressure cavity and a low-pressure cavity, high-pressure drilling fluid pushes the impact block to move towards the direction of the low-pressure cavity to impact the fixed valve block, meanwhile, the high-pressure cavity and the low-pressure cavity are mutually converted, the impact block moves again to impact the fixed valve block again, and the operation is repeated in a circulating mode.
Referring to fig. 2, upper disc 8 is fixed to impact block 7 by screws 9, and upper disc 8 is sealed in planar contact with inlet disc 4 of fixed valve block 3.
With reference to fig. 3 and 4, the first liquid guide hole B is communicated with the first pressure chamber a; the second liquid guide hole C is communicated with the second pressure chamber b.
The inlet disk 4, the lower disk 5 and the upper disk 8 are made of tungsten steel, so that the service life is prolonged.
The device comprises an upper disc, a lower disc, a fixed valve block, an impact block, an inlet disc, a bottom bearing, a positioning pin, a fixing screw, a filter screen and the like.
The invention provides a using method of a torque impactor for well drilling, which comprises the following steps:
firstly, the upper part of an upper joint 11 is connected with a drill rod through a drill rod female fastener, the lower part of an outer cylinder 1 is connected with a drill bit through a drill bit female fastener, the device is put into a well through wellhead equipment, most drilling fluid passes through a central hole and generates certain pressure drop, the power of the device comes from the pressure drop, when the drilling fluid is filtered by a filter screen 12 and then enters a first fluid guide hole B on an inlet disc 4 at the upper part of a fixed valve block 3 through a valve hole A of an upper disc 8, a pressure relief hole at the bottom of a pressure cavity a is sealed, the pressure cavity a becomes a high-pressure cavity, and the pressure pushes an impact block to rotate anticlockwise to impact the fixed valve block 3 to impact the outer cylinder anticlockwise; at the moment, the first liquid guide hole B is closed, the valve hole A is communicated with the second liquid guide hole C on the inlet disc 4, the pressure relief hole at the bottom of the pressure cavity B is closed, the pressure cavity B becomes a high-pressure cavity, the pressure pushes the impact block 7 to rotate clockwise and impacts the fixed valve block 3 to impact the outer cylinder clockwise, so that the drill bit is subjected to impact force of clockwise rotation, and the teeth of the drill bit can cut stratum rocks better by the impact force; the rotary impact of the impact block 7 is high-frequency impact, so that the drill bit can be timely removed, the stratum in front of the teeth of the drill bit can be impact-cut, and the cutting efficiency is improved.
The invention is provided with an inlet disc, a lower disc and an upper disc, prevents drilling fluid from eroding a valve hole, has better plane sealing effect, plays the role of a sliding bearing, can stably work for a long time, and saves devices such as an impeller, a turbine, a screw motor and the like for converting the drilling fluid into torque compared with a tool indirectly driven by the drilling fluid.
The above description is only a few of the preferred embodiments of the present invention, and any person skilled in the art may modify the above-described embodiments or modify them into equivalent ones. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.
Claims (7)
1. The utility model provides a torsion impacter for well drilling, includes nipple joint, characterized by: the short section comprises an upper joint (11) and an outer cylinder (1), the upper end of the upper joint (11) is a drill rod female buckle, the lower end of the outer cylinder (1) is a drill bit female buckle, the upper joint (11) is in threaded connection with the outer cylinder (1), the short section comprises an upper disc (8), a lower disc (5), a fixed valve block (3), an impact block (7), an inlet disc (4), an impact block bottom bearing sheet (10) and a filter screen (12) in the inner side, the lower portion of the inner side of the upper joint (11) is provided with the filter screen (12), the upper disc (8) is arranged at the joint of the upper joint (11) and the outer cylinder (1), the upper disc (8) is provided with two valve hole discs A, the inner side of the outer cylinder (1) is provided with a center hole (13), the outer side of the center hole (13) is provided with the impact block (7), the bottom bearing sheet (10) of the impact block (7) is arranged at the bottom, the outer side of the impact block (7) is provided with the fixed valve block (3), the fixed valve block (3) is connected with the outer barrel (1) through the valve block positioning pin (2), a lower disc (5) is arranged on the lower portion of a bearing sheet (10) at the bottom of the impact block, the lower disc (5) is connected with the bottom of the fixed valve block (3) through a lower disc fixing bolt (6), an inlet disc (4) is arranged on the upper portion of the fixed valve block (3), two sides of the inlet disc (4) are symmetrically arranged, two liquid guide holes are respectively formed in two sides, a first liquid guide hole B and a second liquid guide hole C are formed in the two sides, and four elliptical pressure relief holes are formed in the lower disc (5).
2. The torsional impactor for drilling according to claim 1, wherein: the containing cavities formed among the two valve holes A, the first liquid guide hole B, the second liquid guide hole C, the pressure relief hole, the impact block (7) and the fixed valve block (3) form a first pressure cavity a and a second pressure cavity B.
3. The torsional impactor for drilling as claimed in claim 2, wherein: the first pressure chamber a and the second pressure chamber b can realize the conversion between a high pressure chamber and a low pressure chamber.
4. The torsional impactor for drilling according to claim 1, wherein: the upper disc (8) is fixed with the impact block (7) through a screw (9), and the upper disc (8) is in plane contact sealing with the inlet disc (4) of the fixed valve block (3).
5. The torsional impactor for drilling as claimed in claim 2, wherein: the first liquid guide hole B is communicated with the first pressure cavity a, and the second liquid guide hole C is communicated with the second pressure cavity B.
6. The torsional impactor for drilling according to claim 1, wherein: the inlet disk (4), the lower disk (5) and the upper disk (8) are made of tungsten steel.
7. A method of using a torsional impactor for drilling according to any one of claims 1 to 6, comprising the steps of:
firstly, the upper part of an upper joint (11) is connected with a drill rod through a drill rod female buckle, the lower part of an outer cylinder (1) is connected with a drill bit through a drill bit female buckle, the device is put into a well through wellhead equipment, most drilling fluid passes through a central hole and generates certain pressure drop, the power of the device comes from the pressure drop, when the drilling fluid is filtered by a filter screen (12) and then enters a first liquid guide hole B on an inlet disc (4) at the upper part of a fixed valve block (3) through a valve hole A of an upper disc (8), a pressure relief hole at the bottom of a pressure cavity a is closed, the pressure cavity a becomes a high-pressure cavity, and the impact block is pushed by pressure to rotate anticlockwise to impact the fixed valve block (3); at this moment, the first liquid guide hole B is closed, the valve hole A is communicated with the second liquid guide hole C on the inlet disc (4), the pressure relief hole at the bottom of the pressure cavity B is closed, the pressure cavity B becomes a high-pressure cavity, the pressure pushes the impact block (7) to rotate clockwise and impact the fixed valve block (3), the drill bit is subjected to impact force rotating clockwise, the impact force enables the teeth of the drill bit to cut stratum rocks better, and the rotary impact of the impact block (7) is high-frequency impact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711191005.7A CN107842307B (en) | 2017-11-24 | 2017-11-24 | Torsion impactor for well drilling and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711191005.7A CN107842307B (en) | 2017-11-24 | 2017-11-24 | Torsion impactor for well drilling and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107842307A CN107842307A (en) | 2018-03-27 |
| CN107842307B true CN107842307B (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711191005.7A Active CN107842307B (en) | 2017-11-24 | 2017-11-24 | Torsion impactor for well drilling and method |
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| Country | Link |
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| CN (1) | CN107842307B (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203430420U (en) * | 2013-08-28 | 2014-02-12 | 杨明合 | Novel torque percussion drilling tool |
| CN203701951U (en) * | 2014-01-22 | 2014-07-09 | 中国石油大学(华东) | Torsion impact generator |
| CN103883247B (en) * | 2014-05-06 | 2016-01-06 | 西南石油大学 | A kind of high-frequency reciprocating torsion generator |
| CN204371096U (en) * | 2014-12-26 | 2015-06-03 | 陈元 | One is surged circumferential torsional impact generator |
| CN204920776U (en) * | 2015-08-05 | 2015-12-30 | 四川川石金刚石钻头有限公司 | Drill bit hydraulic pulse impacter |
| CN106639864B (en) * | 2015-10-30 | 2018-11-16 | 中石化石油工程技术服务有限公司 | A kind of vibratory impulse pipe nipple |
| CN105604489B (en) * | 2016-01-26 | 2017-12-29 | 于世江 | The positive and negative drill hammer power generator of hydraulic pressure high frequency and application process |
| CN205840769U (en) * | 2016-07-06 | 2016-12-28 | 中国石油大学(华东) | A kind of underground hydraulic rotary impact device |
| CN108708672B (en) * | 2016-07-14 | 2019-09-06 | 蔡银花 | A kind of circumferential direction axial vacuum impact speed-raising tool |
| CN106837181A (en) * | 2017-03-16 | 2017-06-13 | 天津市高原瑞丰工贸有限公司 | A kind of drilling well knob drill hammer |
| CN206636507U (en) * | 2017-03-16 | 2017-11-14 | 天津市高原瑞丰工贸有限公司 | A kind of drilling well knob drill hammer |
-
2017
- 2017-11-24 CN CN201711191005.7A patent/CN107842307B/en active Active
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| CN107842307A (en) | 2018-03-27 |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200508 Address after: 100101 Beijing City, Chaoyang District Hui Street No. six twelfth floor Applicant after: Qin Limin Address before: 100101 Beijing, Beichen West Road, No. 8 Beichen world center, block A, No. 703, No. Applicant before: SINOPEC OILFIELD SERVICE Corp. Applicant before: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Applicant before: DRILLING WELL ENGINEERING TECHNOLOGY COMPANY OF SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20210618 Address after: 100101 twelfth floor, No. 16, Huixin East Street, Chaoyang District, Beijing Applicant after: SINOPEC OILFIELD SERVICE Corp. Applicant after: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Applicant after: DRILLING WELL ENGINEERING TECHNOLOGY COMPANY OF SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Address before: 100101 twelfth floor, No. 16, Huixin East Street, Chaoyang District, Beijing Applicant before: Qin Limin |
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