CN106948771A - A kind of anti-brake tool of spiral hydraulic pressurization - Google Patents
A kind of anti-brake tool of spiral hydraulic pressurization Download PDFInfo
- Publication number
- CN106948771A CN106948771A CN201710136408.5A CN201710136408A CN106948771A CN 106948771 A CN106948771 A CN 106948771A CN 201710136408 A CN201710136408 A CN 201710136408A CN 106948771 A CN106948771 A CN 106948771A
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- China
- Prior art keywords
- mandrel
- hydraulic pressurization
- spiral
- outer sleeve
- drill bit
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Classifications
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- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/086—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder
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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)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The present invention relates to a kind of spiral anti-brake tool of hydraulic pressurization.Technical scheme is：The spiral anti-brake tool of hydraulic pressurization is made up of prevention spiral brake apparatus and hydraulic pressurization units；Helical axis and screw-casing of the spiral anti-brake apparatus with each other, helical axis top connecting mandrel, screw-casing top connection outer sleeve set spring between outer sleeve and mandrel；Hydraulic pressurization units are mainly made up of pressurizing piston, mandrel and outer sleeve, and pressurizing piston is connected with mandrel, and action of hydraulic force passes to drill bit in pressurizing piston in drill string；Realized and worked under the permanent moment of torsion of drill bit and permanent the pressure of the drill by the present invention, improve bit speed.
Description
Technical field
The present invention relates to oil, natural gas extraction, drilling tool field, especially a kind of anti-braking of spiral hydraulic pressurization
Instrument.
Background technology
With the development of petroleum exploration and development, the Holes of Complicated Wells such as deep-well, horizontal well increases, when running into soft or hard staggeredly stratum,
Easily there is the sliding phenomenon of card, cause drill bit and the frequent of drilling tool to suppress jump and torsional oscillation, cause drill bit to collapse tooth, damage, down-hole equipment
The damage of combination, reduces drill bit rate of penetration and efficiency of breaking rock, drilling cost increase.It is such issues that in order to solve, external
The AST instruments of TOMAX companies, by the combination of helical spline and disc spring, can effectively absorb the sliding caused change in torque of card, and
Drill bit can be lifted up.But in directional well, due to the influence of drilling tool frictional resistance, make the transfer lag of the pressure of the drill and extremely unstable
It is fixed, it is suddenly big or suddenly small, easily there is " false the pressure of the drill " phenomenon.And in order to prevent the viscous card of drilling tool, typically require that driller's " point is sent " bores, this
More exacerbate the unstability of the pressure of the drill.
Based on this, in order to prevent that bit freezing, stick-slip and phenomenon of torsional vibration from occurring in drill bit, the de- pressure of solution drill bit is asked with the pressure of the drill shakiness
Topic, the present invention proposes a kind of spiral anti-brake tool of hydraulic pressurization.
The content of the invention
The invention aims to make up the deficiencies in the prior art, there is provided a kind of spiral anti-braking work of hydraulic pressurization
Tool, to solve the problem of drill bit stick-slip in drilling process, bouncing of drilling tool phenomenon and difficult horizontal well drilling tool pressurization.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of anti-braking of spiral hydraulic pressurization
Instrument, prevention spiral brake apparatus and hydraulic pressurization units, it is characterized in that：
Helical axis and screw-casing of the spiral anti-brake apparatus with each other, helical axis top connecting mandrel, screw-casing
Top connects outer sleeve, and spring is set between outer sleeve and mandrel；
Hydraulic pressurization units are mainly made up of pressurizing piston, mandrel and outer sleeve, and pressurizing piston is arranged on mandrel and overcoat
Between cylinder, the top of pressurizing piston is connected with drill string inner high voltage area, and pressurizing piston bottom is connected with annular space low-pressure area, forms hydraulic pressure
Power is acted in pressurizing piston, and pressurizing piston is connected with mandrel；
It is characterized in that：Described hydraulic pressurization units can include first stage piston or multi-level piston, realize that one-level is pressurizeed
Or multistage pressuring machine.
It is characterized in that：The pressurizing piston and the connected mode of mandrel can be floating type or fixed connection.
When drill bit, which runs into card, to be slided, moment of torsion increase, drill speed is relatively slack-off, anti-brake tool lower end rotating speed and drill bit one
Cause, top rotating speed is consistent with drilling rod, and speed discrepancy occurs in instrument, and helical spline shaft can relatively rotate with helical spline set, rotation
Turning rear screw splined shaft can be moved upwards, and now disc spring can be compressed, and drill bit can somewhat be lifted upwards, and drill bit can be spent rapidly
Card skating area, disc spring recovers normal position, and drill bit recovers normal drilling, can reduce torque-on-bit amplitude of variation again, can be effective
Protect drill bit and drilling tool；Simultaneously because in drill string drilling fluid effect, hydraulic thrust is produced in pressurizing piston, to drill bit apply
Flexible hydraulic the pressure of the drill, its pressure of the drill is true and constant.
A kind of spiral anti-brake tool of hydraulic pressurization that the present invention is provided, the structure more than, with following
Beneficial effect：
1st, using the integrated hydraulic pressurization units on the basis of anti-brake apparatus, the stick-slip and bouncing of drilling tool that can solve drill bit are asked
Topic, while can also apply flexible hydraulic the pressure of the drill to drill bit, makes drill bit realize the permanent moment of torsion work of permanent the pressure of the drill, drilling efficiency is higher.
2nd, using floating seal, inside and outside differential pressure is balanced well, it is ensured that prolonged seal operation.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is a kind of front view structure schematic cross-sectional view of the invention.
Fig. 2 is 2 grades of piston structure schematic cross-sectional views of the invention.
In figure：Helical axis 1, screw-casing 2, outer sleeve 3, top connection 4, mandrel 5, spring 6, pressurizing piston 7, inlet opening 8 is living
Cylinder 9, outage 10 beyond the Great Wall.
Embodiment
In such as Fig. 1, a kind of spiral anti-brake tool of hydraulic pressurization, including helical axis 1, screw-casing 2, outer sleeve 3, above connect
First 4, mandrel 5, spring 6, pressurizing piston 7, wherein inlet opening 8, helical axis 1 and screw-casing 2 coordinate each other, and the top of helical axis 1 connects
Connect mandrel 5, connection outer sleeve 3 in the top of screw-casing 2 sets spring 6 between outer sleeve 3 and mandrel 5, mandrel 5 and outer sleeve 3 it
Between be additionally provided with pressurizing piston 7, pressurizing piston 7 is in the top of spring 6, the connection top connection 4 of the top of outer sleeve 3.
Top connection 4 is threadedly attached in below drilling rod, is rotated with drilling rod, helical axis 1 is connected to power drilling tool and drill bit
Top, drill string torque is delivered to helical axis 1 by screw-casing 2 through screw mechanism, because helical axis 1 is acted on by external resistance, spiral shell
The rotation of the meeting opposed helical of spin axis 1 set 2 rises, and band moving mandrel 5 rises, and compresses the spring 6 between mandrel 5 and outer sleeve 3, tool shaft
To contraction, when spring force and moment of torsion are in balance, moment of torsion may proceed to downward transmission,.When sliding card, bit freezing occur for drill bit, bore
Head moment of torsion increase, drill speed reduction, when moment of torsion increases, helical axis 1 can be rotated against with screw-casing 2, and along spiral
Direction is moved upwards, now compression spring 6, because helical axis 1 is moved upwards, drives drill bit to be lifted up, the now torsion of drill bit
Square diminishes, and disc spring 6 sets back, and rotating speed recovers, and terminates drill chuck and slides, drilling continues.When running into card cunning again, weight may proceed to
Multiple above-mentioned action.The moment of torsion of drill bit can be controlled within small size excursion, and can prevent that drill chuck cunning etc. from causing well
Bit freezing, be effectively protected drill bit and drilling tool, the service life of increase drill bit and drilling tool.Connected between pressurizing piston 7 and mandrel 5
For floating connection, sealing life is longer.
In the course of the work, drill string inner high voltage drilling fluid is acted in pressurizing piston 7 instrument, so as to act on helical axis 1
On, it is delivered on drill bit.Drill bit the pressure of the drill is provided by hydraulic pressurization units, and constant the pressure of the drill is provided for drill bit, and spring 6 is mainly used to
The reaction torque of drill bit is adjusted, the permanent moment of torsion work of drill bit is realized, therefore the spiral anti-brake tool of hydraulic pressurization can realize drill bit
In permanent the pressure of the drill and permanent torque conditions work, there is great function to reduction drill bit stick-slip and bouncing of drilling tool problem, so as to protect drill bit to carry
High drilling efficiency.
As in Fig. 2, hydraulic pressurization units are provided with 2 grades of pressurizing pistons, by increasing the series of pressurizing piston to increase liquid
Active area is pressed, to adjust the size of drill bit the pressure of the drill.
The above embodiments are only the preferred technical solution of the present invention, and are not construed as the limitation for the present invention, this Shen
Please in embodiment and feature in embodiment in the case where not conflicting, can mutually be combined.The protection model of the present invention
Enclose the equivalent side of technical characteristic in the technical scheme that should be recorded with claim, including the technical scheme of claim record
Case is protection domain.Equivalent i.e. within this range is improved, also within protection scope of the present invention.
Claims (3)
1. a kind of anti-brake tool of spiral hydraulic pressurization, including prevention spiral brake apparatus and hydraulic pressurization units, it is characterized in that：
Helical axis (1) and screw-casing (2) of the spiral anti-brake apparatus with each other, helical axis (1) top connecting mandrel
(5), screw-casing (2) top connection outer sleeve (3), sets spring (6) between outer sleeve (3) and mandrel (5)；
Hydraulic pressurization units are mainly made up of pressurizing piston (12), mandrel (5) and outer sleeve (3), and pressurizing piston (7) is arranged on core
Between axle (5) and outer sleeve (3).
2. a kind of spiral anti-brake tool of hydraulic pressurization according to claim 1, it is characterized in that：Described hydraulic pressurization
Device can include first stage piston or multi-level piston, realize one-level pressurization or multistage pressuring machine.
3. a kind of spiral anti-brake tool of hydraulic pressurization according to claim 1, it is characterized in that：The pressurizing piston
(7) connected mode with mandrel (5) can be floating type or fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710136408.5A CN106948771A (en) | 2017-03-09 | 2017-03-09 | A kind of anti-brake tool of spiral hydraulic pressurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710136408.5A CN106948771A (en) | 2017-03-09 | 2017-03-09 | A kind of anti-brake tool of spiral hydraulic pressurization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106948771A true CN106948771A (en) | 2017-07-14 |
Family
ID=59467191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710136408.5A Pending CN106948771A (en) | 2017-03-09 | 2017-03-09 | A kind of anti-brake tool of spiral hydraulic pressurization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106948771A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780198A (en) * | 2021-01-05 | 2021-05-11 | 西安石油大学 | Hydraulic pressurizer suitable for slim hole |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2263923B (en) * | 1992-01-23 | 1995-11-01 | Paul Bernard Lee | Improved adjustable drilling mechanism |
| CN201288514Y (en) * | 2008-10-24 | 2009-08-12 | 中国石化集团胜利石油管理局黄河钻井总公司 | Novel hydraulic presser |
| CN202325252U (en) * | 2011-11-24 | 2012-07-11 | 中国石油天然气集团公司 | Constant torque drill bit protector |
| CN204386510U (en) * | 2014-12-22 | 2015-06-10 | 四川省贝特石油技术有限公司 | The constant device of a kind of new and effective rotating speed the pressure of the drill |
| CN204941339U (en) * | 2015-07-31 | 2016-01-06 | 江汉石油钻头股份有限公司 | A kind of anti-brake tool |
| CN205936390U (en) * | 2016-07-01 | 2017-02-08 | 中国石油集团渤海钻探工程有限公司 | Nearly drill bit rotary vibration drilling tool |
-
2017
- 2017-03-09 CN CN201710136408.5A patent/CN106948771A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2263923B (en) * | 1992-01-23 | 1995-11-01 | Paul Bernard Lee | Improved adjustable drilling mechanism |
| CN201288514Y (en) * | 2008-10-24 | 2009-08-12 | 中国石化集团胜利石油管理局黄河钻井总公司 | Novel hydraulic presser |
| CN202325252U (en) * | 2011-11-24 | 2012-07-11 | 中国石油天然气集团公司 | Constant torque drill bit protector |
| CN204386510U (en) * | 2014-12-22 | 2015-06-10 | 四川省贝特石油技术有限公司 | The constant device of a kind of new and effective rotating speed the pressure of the drill |
| CN204941339U (en) * | 2015-07-31 | 2016-01-06 | 江汉石油钻头股份有限公司 | A kind of anti-brake tool |
| CN205936390U (en) * | 2016-07-01 | 2017-02-08 | 中国石油集团渤海钻探工程有限公司 | Nearly drill bit rotary vibration drilling tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780198A (en) * | 2021-01-05 | 2021-05-11 | 西安石油大学 | Hydraulic pressurizer suitable for slim hole |
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Application publication date: 20170714 |