CN201661248U - Drilling bit and drilling string vibration absorption tool - Google Patents
Drilling bit and drilling string vibration absorption tool Download PDFInfo
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- CN201661248U CN201661248U CN2010201472026U CN201020147202U CN201661248U CN 201661248 U CN201661248 U CN 201661248U CN 2010201472026 U CN2010201472026 U CN 2010201472026U CN 201020147202 U CN201020147202 U CN 201020147202U CN 201661248 U CN201661248 U CN 201661248U
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Abstract
The utility model relates to a drilling bit and drilling string vibration absorption tool, which is used for petroleum natural gas well drilling and geological exploration well drilling. The utility model can effectively relief the damage of the drilling bit vertical vibration to a drilling bit and a drilling string, and can solve the problems of drilling bit buffering and efficiency improvement on the drilling bit in the deep well drilling and PDC drilling bit well drilling process. The utility model has the technical scheme that the upper part of the vibration absorption tool is a drilling collar connecting block, the lower part is a drilling bit connecting block, splines are arranged inside the drilling collar connecting block and the drilling bit connecting block, a spring is arranged between the drilling collar connecting block and the drilling bit connecting block, well drilling liquid passages are formed in the splines, and the upper end and the lower end of the spring are respectively fixed on the drilling collar connecting block and the drilling bit connecting block. The vertical vibration and the movable load of the drilling bit are relieved through the mechanical buffering effect of the spring of the vibration absorption tool on the drilling bit, the service life of the drilling bit and the drilling string is prolonged, at the same time, the integrated performance and the work efficiency of the drilling bit are improved, and the utility model is used in the petroleum natural gas well drilling and geological exploration well drilling engineering.
Description
Technical field
The utility model relates to a kind of drill bit, drill stem vibration damping instrument that is used for oil and gas well drilling and geological prospecting drilling well, belongs to drilling tool.
Background technology
The oscillation phenomenon of drill string is the complex situations that often run in the straight well drilling well.Particularly Exploration Domain is more and more broader, and under the situation that the situations such as lithology hardness on the stratum of boring become increasingly complex, the vibration problem of drill string also more and more is difficult to solve.The vibration of drill string not only has influence on the efficiency of construction of drilling well, also can cause the accidents such as rupture failure of drill string when frequently taking place tempestuously, thereby strengthen construction cost, causes economic loss.In the vibration of drill string, the stressed key factor with fatigue failure of drill string is studied in extensional vibration (abbreviation longitudinal vibration) normally people.The extensional vibration of drill string usually makes the pressure of the drill not be added in equably on the drill bit, drill bit is beated because of the thermal agitation of the pressure of the drill and is jumped out of the shaft bottom, produce shock loading and may make bit bearing and the too early destruction of tooth, for the PDC drill bit, drill bit dynamic loading effect is more obvious to the influence in cutting teeth life-span.In addition, when drillstring vibrations is relatively more serious, often cause the judder of rig and derrick, ground installation is also had certain destruction.In drilling process, the force-bearing situation of drill string and working environment are abominable unusually, it is an extremely complicated dynamic system, in this case, the vibration that we will alleviate drill string is the extensional vibration in the straight well especially, guarantees that the working life safe, that improve DRILL-STRING SYSTEM of drill bit just becomes extremely important.
In the actual well drilled process, use the fluid power pressurizer can slow down dynamic loading to a certain extent.But the fluid power pressurizer presses loss-rate higher, and its application has bigger limitation when deep drilling.On the other hand, the fluid power pressurizer to the PDC drill bit creep into poor for applicability, its reason is that PDC drill bit water hole is many, flow area is big, the fluid power pressurizer lacks enough bit pressure drops.Therefore the approach of seeking other with regard to needs solves drill bit buffering, the synergy problem in deep drilling and the PDC drill bit drilling process.At present, the longitudinal vibration that alleviates drill bit, drill string is the important topic of drilling tool research.
Summary of the invention
The purpose of this utility model is: in order to alleviate the damage of drill bit longitudinal vibration to drill bit, drill string effectively, solve drill bit buffering, synergy problem in deep drilling and the PDC drill bit drilling process, the spy provides a kind of drill bit, drill stem vibration damping instrument.
In order to achieve the above object, the technical scheme that the utility model solves this technical problem is: a kind of drill bit, drill stem vibration damping instrument, form by contiguous block, spline, spring, its architectural feature is: this vibration dampening tool top is the drill collar contiguous block, the bottom is the drill bit contiguous block, inside at drill collar contiguous block and drill bit contiguous block is provided with spline, and spline can be consistent the rotation of drill collar contiguous block and drill bit contiguous block by transfer torque; Being symmetrically installed with spring between drill collar contiguous block and the drill bit contiguous block, is to be threaded between drill collar contiguous block and the drill collar.The top and bottom of spring are separately fixed on drill collar contiguous block and the drill bit contiguous block, between drill collar contiguous block and the drill collar is to be threaded, between drill bit contiguous block and the drill bit is to be threaded, the diameter of spline lower end is used for carrying the weight of drill bit and drill bit contiguous block greater than the diameter of spline when making a trip.
In drilling process, drill collar, linkage, drill bit rotate in the shaft bottom, and spring in the raw.When running into shaft bottom injustice, drill bit generation longitudinal vibration, drill bit will upwards be beated, be fixed on the spring stress compression on the drill collar contiguous block, spring trends towards recovering the spring natural length by compression, so spring produces downward thrust to the drill bit contiguous block, the drill bit contiguous block is to be threaded with drill bit, downward thrust has been alleviated the longitudinal vibration of drill bit, alleviated the damage of longitudinal vibration, increased the life-span of drill string, improved drill bit job stability and combination property drill bit, drill string.
The present invention has following beneficial effect compared with the prior art: (1) this vibration dampening tool upper spring has alleviated the damage of longitudinal vibration to drill bit, drill string to the mechanical damping effect of drill bit, has increased the life-span of drill bit and drill string; (2) the mechanical damping effect of spring has reduced the drill bit dynamic loading, has improved the drill bit job stability, the working life of bit cutting tooth, thus improved drill bit combination property and operating efficiency, saved drilling cost.
Description of drawings:
Fig. 1 is the structural representation of a kind of drill bit of the utility model, drill stem vibration damping instrument.
Fig. 2 is the A-A sectional view of this vibration dampening tool Fig. 1.
Among the figure: 1, drill collar contiguous block 2, drill bit contiguous block 3, spline 4, spring 5, drilling fluid passage.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and embodiments.
According to Fig. 1, shown in Figure 2, a kind of drill bit, drill stem vibration damping instrument, comprise drill collar contiguous block 1, drill bit contiguous block 2, spline 3, between drill collar contiguous block 1 and drill bit contiguous block 2, be provided with spring 4, the top and bottom of spring 4 are separately fixed on drill collar contiguous block 1 and the drill bit contiguous block 2, and drill collar contiguous block 1 and drill bit contiguous block 2 inside are splines 3.The characteristics of this programme are: linkage is divided into drill collar contiguous block 1, drill bit contiguous block two parts about in the of 2, is provided with spring 4 between drill collar contiguous block 1 and the drill bit contiguous block 2, and spring can hinder drill bit and drill bit contiguous block 2 is upwards beated.In the drilling process, drill collar contiguous block 1, drill bit contiguous block 2 rotate in the shaft bottom with drill bit, when running into the shaft bottom injustice, when drill bit has the trend of upwards beating or longitudinal vibration takes place, spring 4 is subjected to force compresses, drill bit contiguous block 2 and drill bit are produced downward thrust, alleviated the longitudinal vibration of drill bit, alleviated the damage of longitudinal vibration drill bit, drill string.The diameter of spline lower end can carry the weight of drill bit and drill bit contiguous block 2 greater than the diameter of spline when making a trip.Have drilling fluid passage 5 in the spline 3, drilling fluid can enter the shaft bottom by the drilling fluid passage.
The actual Shi Buxu that puts into production of the utility model changes the original structure of drill collar, has bigger engineering using value.
Claims (3)
1. a drill bit, drill stem vibration damping instrument are made up of contiguous block, spline, spring, and it is characterized in that: this vibration dampening tool top is drill collar contiguous block (1), and the bottom is drill bit contiguous block (2); Be provided with spline (3) at drill collar contiguous block (1) and drill bit contiguous block (2) inside; Between drill collar contiguous block (1) and drill bit contiguous block (2), spring (4) is installed.
2. according to claims 1 described vibration dampening tool, it is characterized in that: have drilling fluid passage (5) in the spline (3), the lower end diameter of spline (3) is greater than the diameter of spline.
3. according to claims 1 described vibration dampening tool, it is characterized in that: the top and bottom of spring (4) are separately fixed on drill collar contiguous block (1) and the drill bit contiguous block (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201472026U CN201661248U (en) | 2010-03-26 | 2010-03-26 | Drilling bit and drilling string vibration absorption tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201472026U CN201661248U (en) | 2010-03-26 | 2010-03-26 | Drilling bit and drilling string vibration absorption tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201661248U true CN201661248U (en) | 2010-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201472026U Expired - Fee Related CN201661248U (en) | 2010-03-26 | 2010-03-26 | Drilling bit and drilling string vibration absorption tool |
Country Status (1)
| Country | Link |
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| CN (1) | CN201661248U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104781504A (en) * | 2012-09-06 | 2015-07-15 | 罗比特摇动工具有限公司 | Method for surveying drill holes, drilling arrangement, and borehole survey assembly |
| CN105386730A (en) * | 2015-12-01 | 2016-03-09 | 西南石油大学 | Directional well and horizontal well drill stem extension tool and using method thereof |
| CN107592999A (en) * | 2017-09-28 | 2018-01-19 | 贵州宏源泰康生态科技发展有限公司 | Proportion of crop planting loosening device |
| CN108301787A (en) * | 2018-02-07 | 2018-07-20 | 中国石油集团西部钻探工程有限公司 | The reciprocating absorbing tool of external spring |
-
2010
- 2010-03-26 CN CN2010201472026U patent/CN201661248U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104781504A (en) * | 2012-09-06 | 2015-07-15 | 罗比特摇动工具有限公司 | Method for surveying drill holes, drilling arrangement, and borehole survey assembly |
| US10370954B2 (en) | 2012-09-06 | 2019-08-06 | Robit Oyj | Method for surveying drill holes, drilling arrangement, and borehole survey assembly |
| CN105386730A (en) * | 2015-12-01 | 2016-03-09 | 西南石油大学 | Directional well and horizontal well drill stem extension tool and using method thereof |
| CN107592999A (en) * | 2017-09-28 | 2018-01-19 | 贵州宏源泰康生态科技发展有限公司 | Proportion of crop planting loosening device |
| CN108301787A (en) * | 2018-02-07 | 2018-07-20 | 中国石油集团西部钻探工程有限公司 | The reciprocating absorbing tool of external spring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SICHUAN CHUANSHI.CHRIDA DIAMOND BIT Co.,Ltd. Assignor: Southwest Petroleum University Contract record no.: 2011510000046 Denomination of utility model: Drilling bit and drilling string vibration absorption tool Granted publication date: 20101201 License type: Exclusive License Record date: 20110510 |
|
| EC01 | Cancellation of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: SICHUAN CHUANSHI.CHRIDA DIAMOND BIT Co.,Ltd. Assignor: Southwest Petroleum University Contract record no.: 2011510000046 Date of cancellation: 20170331 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20190326 |