CN112922553A - Drilling tool oscillator for well drilling - Google Patents
Drilling tool oscillator for well drilling Download PDFInfo
- Publication number
- CN112922553A CN112922553A CN202110376601.2A CN202110376601A CN112922553A CN 112922553 A CN112922553 A CN 112922553A CN 202110376601 A CN202110376601 A CN 202110376601A CN 112922553 A CN112922553 A CN 112922553A
- Authority
- CN
- China
- Prior art keywords
- hole
- drilling tool
- valve
- drilling
- fixed valve
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 50
- 238000007789 sealing Methods 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 3
- 239000011435 rock Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B28/00—Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/24—Drilling using vibrating or oscillating means, e.g. out-of-balance masses
Abstract
The invention provides a drilling tool oscillator for well drilling, which comprises a body, wherein a flow passage is arranged in the body, an eccentric joint used for being connected with a screw drilling tool and a movable valve fixedly connected with the eccentric joint are also arranged in the body, a fixed valve is fixedly arranged in the body, the movable valve and the fixed valve are abutted, the fixed valve is provided with a first through hole along the axial direction of the fixed valve, the movable valve is provided with a second through hole along the axial direction of the movable valve, the axial lead of the first through hole and the axial lead of the second through hole have a distance S, and an overflowing hole with periodically changed overflowing area is formed between the first through hole and the second through hole when the movable valve rotates. The invention can reduce the phenomenon of 'stick-slip' of the drilling tool, reduce the torsional vibration frequency and intensity of the drilling tool, prolong the service life of the drilling tool, improve the construction efficiency and reduce the production cost.
Description
Technical Field
The invention relates to the technical field of oil and gas drilling equipment, in particular to a drilling tool oscillator for well drilling.
Background
During the exploitation process of petroleum and natural gas, boreholes with different diameters are drilled from the ground by a drilling machine to reach an appointed oil-gas layer, and when the boreholes are drilled into a hard rock layer in the drilling process, the drilling tool is low in crushing efficiency, the drilling tool is prone to phenomena such as adhesion and sliding, the drilling efficiency is low, and the service life of the drilling tool is short.
Disclosure of Invention
The invention aims to provide a drilling tool oscillator for well drilling aiming at the defects of the prior art, and the specific scheme is as follows:
the utility model provides a drilling tool oscillator for well drilling, includes the body, this internal runner that is equipped with still is equipped with in this body and is used for the eccentric joint be connected with the screw rod drilling tool and with eccentric joint fixed connection' S traveling valve, this internal standing valve that has still set firmly, traveling valve, standing valve butt, first through-hole has been seted up along its axial to the standing valve, and the second through-hole has been seted up along its axial to the traveling valve, there is interval S in the axial lead of first through-hole, second through-hole axial lead, when the traveling valve rotates form the discharge orifice of area period change that flows between first through-hole, the second through-hole.
On the basis, steps corresponding to each other are arranged between the inner wall of the body and the fixed valve, and sealing gaskets are arranged at the steps.
Compared with the prior art, the invention has outstanding substantive characteristics and remarkable progress, and particularly has the following advantages:
according to the invention, the screw drilling tool drives the eccentric joint 2 and the traveling valve 3 to rotate, and as the distance S exists between the axial lead of the first through hole and the axial lead of the second through hole, the overflowing hole between the traveling valve 3 and the fixed valve 4 is periodically changed between the maximum overflowing area and the minimum overflowing area during the operation, so that the fluid pressure behind the drilling tool oscillator for drilling is changed, and when the pressure behind the drilling tool oscillator for drilling is changed, the rear oscillating mechanism is driven to work to generate oscillating shock waves, so that the drilling tool is driven to oscillate and impact on a rock stratum, the rock stratum is broken by the drilling tool, the phenomenon of 'stick-slip' of the drilling tool is reduced, the torsional vibration frequency and intensity of the drilling tool can be reduced, the service life of the drilling tool is prolonged, the construction efficiency is improved, and the production cost.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a sectional view taken along a-a in fig. 1, showing a state in which an area of an overflowing hole is minimized.
Fig. 3 is a sectional view taken along a-a in fig. 2, showing a state in which the area of the overflowing hole is maximized.
In the figure: 1. a body; 2. an eccentric joint; 3. a traveling valve; 4. a fixed valve; 5. a gasket; 6. a first through hole; 7. a second through hole; 8. and (4) an overflowing hole.
Detailed Description
The technical solution of the present invention is further described in detail by the following embodiments.
Examples
As shown in fig. 1-3, the present invention provides a drilling tool oscillator for drilling, which includes a body 1, a flow channel is provided in the body 1, an eccentric joint 2 for connecting with a screw drill and a traveling valve 3 fixedly connected with the eccentric joint 2 are further provided in the body 1, a fixed valve 4 is further fixedly provided in the body 1, the traveling valve 3 and the fixed valve 4 are abutted, the fixed valve 4 is provided with a first through hole 6 along an axial direction thereof, the traveling valve 3 is provided with a second through hole 7 along the axial direction thereof, a space S is provided between an axial line of the first through hole 6 and an axial line of the second through hole 7, and an overflowing hole 8 with a periodically changing overflowing area is formed between the first through hole 6 and the second through hole 7 when the traveling valve 3 rotates.
In order to prevent the drilling fluid from flowing out from the gap between the fixed valve 4 and the inner wall of the body 1, steps corresponding to each other are arranged between the inner wall of the body 1 and the fixed valve 4, and a sealing gasket 5 is arranged at the steps.
The invention has the specific working principle that: in the using process of the invention, the screw drilling tool drives the eccentric joint 22 and the traveling valve 33 to rotate, because the distance S exists between the axial lead of the first through hole 6 and the axial lead of the second through hole 7, the flow through hole 8 between the traveling valve 33 and the fixed valve 44 is periodically changed between the maximum flow through area and the minimum flow through area when the screw drilling tool is in operation, so that the fluid pressure behind the drilling tool oscillator is changed, and when the pressure behind the drilling tool oscillator is changed, the rear oscillating mechanism is driven to work to generate oscillating shock waves to drive the drilling tool to oscillate and impact the rock stratum, so as to assist the drilling tool to break the rock stratum, reduce the phenomenon of 'stick slip' of the drilling tool, reduce the torsional vibration frequency and intensity of the drilling tool, prolong the service life of the drilling tool, improve the construction efficiency and reduce the production cost.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (2)
1. A drilling tool oscillator for drilling a well, comprising: including body (1), be equipped with the runner in body (1), still be equipped with in body (1) and be used for eccentric joint (2) be connected with the screw rod drilling tool and with eccentric joint (2) fixed connection' S traveling valve (3), fixed valve (4) have still set firmly in body (1), traveling valve (3), fixed valve (4) butt, first through-hole (6) have been seted up along its axial in fixed valve (4), and second through-hole (7) have been seted up along its axial in traveling valve (3), there is interval S in the axial lead of first through-hole (6), second through-hole (7) axial lead, when traveling valve (3) rotate form overflowing hole (8) of flowing area periodic variation between first through-hole (6), second through-hole (7).
2. The drilling tool oscillator of claim 1, wherein: the inner wall of the body (1) and the fixed valve (4) are provided with corresponding steps, and a sealing gasket (5) is arranged at the step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110376601.2A CN112922553A (en) | 2021-04-08 | 2021-04-08 | Drilling tool oscillator for well drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110376601.2A CN112922553A (en) | 2021-04-08 | 2021-04-08 | Drilling tool oscillator for well drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112922553A true CN112922553A (en) | 2021-06-08 |
Family
ID=76173691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110376601.2A Pending CN112922553A (en) | 2021-04-08 | 2021-04-08 | Drilling tool oscillator for well drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112922553A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888553A (en) * | 2016-04-13 | 2016-08-24 | 长江大学 | Three-dimensional vibration hydraulic oscillator |
| WO2016150113A1 (en) * | 2015-03-25 | 2016-09-29 | 东方宝麟科技发展(北京)有限公司 | Positive displacement motor drill and rock breaking well drilling method therefor |
| CN208073362U (en) * | 2018-02-01 | 2018-11-09 | 中国石油化工股份有限公司华北油气分公司石油工程技术研究院 | A kind of hydro powered assembly, hydroscillator and well drilling pipe column |
| CN108868615A (en) * | 2018-07-06 | 2018-11-23 | 河南易发石油工程技术有限公司 | A kind of hydroscillator pulse generating device |
| RU2732322C1 (en) * | 2019-12-25 | 2020-09-15 | Общество с ограниченной ответственностью "Фирма "Радиус-Сервис" | Oscillator for a drill string |
| WO2020221010A1 (en) * | 2019-04-30 | 2020-11-05 | 中国石油化工股份有限公司 | Reaction torque automatic balancing device for screw drilling tool, and drilling pipe string and method |
-
2021
- 2021-04-08 CN CN202110376601.2A patent/CN112922553A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016150113A1 (en) * | 2015-03-25 | 2016-09-29 | 东方宝麟科技发展(北京)有限公司 | Positive displacement motor drill and rock breaking well drilling method therefor |
| CN105888553A (en) * | 2016-04-13 | 2016-08-24 | 长江大学 | Three-dimensional vibration hydraulic oscillator |
| CN208073362U (en) * | 2018-02-01 | 2018-11-09 | 中国石油化工股份有限公司华北油气分公司石油工程技术研究院 | A kind of hydro powered assembly, hydroscillator and well drilling pipe column |
| CN108868615A (en) * | 2018-07-06 | 2018-11-23 | 河南易发石油工程技术有限公司 | A kind of hydroscillator pulse generating device |
| WO2020221010A1 (en) * | 2019-04-30 | 2020-11-05 | 中国石油化工股份有限公司 | Reaction torque automatic balancing device for screw drilling tool, and drilling pipe string and method |
| RU2732322C1 (en) * | 2019-12-25 | 2020-09-15 | Общество с ограниченной ответственностью "Фирма "Радиус-Сервис" | Oscillator for a drill string |
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| 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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210608 |