CN202970480U - Mono-cone bit for ultrahigh pressure drilling - Google Patents
Mono-cone bit for ultrahigh pressure drilling Download PDFInfo
- Publication number
- CN202970480U CN202970480U CN 201220558678 CN201220558678U CN202970480U CN 202970480 U CN202970480 U CN 202970480U CN 201220558678 CN201220558678 CN 201220558678 CN 201220558678 U CN201220558678 U CN 201220558678U CN 202970480 U CN202970480 U CN 202970480U
- Authority
- CN
- China
- Prior art keywords
- drilling fluid
- super
- ultrahigh pressure
- pressure drilling
- pressure
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
A mono-cone bit for ultrahigh pressure drilling comprises a bit body, a drilling fluid flow channel, a cone, an ultrahigh pressure nozzle, a shaft neck and ultrahigh pressure drilling fluid flow channels, wherein the drilling fluid flow channel is arranged in the cavity of the bit body, the ultrahigh pressure drilling fluid flow channels are arranged on the cavity of the bit body and the cone, and the ultrahigh pressure nozzle is arranged on the ultrahigh pressure drilling fluid flow channels. The mono-cone bit for ultrahigh pressure drilling has the advantages of simple technical design, advanced functions and good integrity; since the ultrahigh pressure nozzle is close to the bottom of a well, so that energy loss under a flooding non-free jet flow state is small, effective separation between ultrahigh pressure drilling fluid and common drilling fluid is realized, the ultrahigh pressure drilling fluid provided by a boosting pump at the lower part of a drill stem flows into the ultrahigh pressure nozzle through the ultrahigh pressure drilling fluid flow channels and is sprayed out through the ultrahigh pressure nozzle, and functions of cleaning the bottom of the well and assisting in breaking rocks are achieved; and the mono-cone bit is widely applied to petroleum ultrahigh pressure drilling engineering.
Description
Technical field
The utility model relates to petroleum drilling bit, particularly a kind of super-pressure drilling well single-cone rotary drill bit.
Background technology
Traditional single-cone rotary drill bit, its structure are generally bit body, drilling fluid runner, gear wheel, axle journal formation.For petroleum drilling engineering contributes, but it exists following shortcoming or deficiency simultaneously: be only 1. a cover drilling fluid runner in Bit Cavity, can not meet the demand of superhigh pressure jetting drilling well; 2. drilling liquid flow track pitch shaft bottom is far away, and under the submerged non-free jet state, energy loss is large; Super-pressure drilling fluid and normal pressure drilling fluid are effectively isolated.
Summary of the invention
The purpose of this utility model is to provide a kind of improved super-pressure drilling well single-cone rotary drill bit, the structure that adopts super-pressure drilling fluid runner and super-pressure nozzle to combine with traditional drilling fluid runner, the super-pressure drilling fluid directive stratum that booster pump is provided, the power conversion of superhigh pressure liquid is become the energy of fractured rock, the shortcoming or the deficiency that effectively overcome or avoid existing in described prior art.
The described super-pressure drilling well of utility model single-cone rotary drill bit comprises bit body, drilling fluid runner, gear wheel, super-pressure nozzle, axle journal, super-pressure drilling fluid runner.Described bit body inner chamber is provided with the drilling fluid runner, and bit body inner chamber and gear wheel are provided with super-pressure drilling fluid runner, on this super-pressure drilling fluid runner, the super-pressure nozzle is installed.
Wherein, described drilling fluid runner is connected with the drilling well surface pump.Described super-pressure drilling fluid runner top is connected with the booster pump of drill string bottom, and the bottom is connected with the super-pressure nozzle.Between described super-pressure drilling fluid runner and booster pump, between super-pressure drilling fluid runner and super-pressure nozzle, sealing device is installed.Described super-pressure nozzle is fixed together by being threaded with axle journal.
The utility model has following advantage compared with prior art:
1, technical design is simple, and function is advanced, good integrity;
2, the super-pressure nozzle is near apart from the shaft bottom, and under the submerged non-free jet state, energy loss is little;
3, realized effective isolation of super-pressure drilling fluid and normal pressure drilling fluid;
4, the super-pressure drilling fluid that provides of the booster pump of drill string bottom, is sprayed by the super-pressure nozzle to the super-pressure nozzle by super-pressure drilling fluid runner, plays bottom-hole cleaning and auxiliary rock function.
Description of drawings
Fig. 1 is a kind of example structure schematic diagram of the present utility model.
The specific embodiment
Consult Fig. 1, a kind of super-pressure drilling well single-cone rotary drill bit, comprise bit body 1, drilling fluid runner 2, gear wheel 3, super-pressure nozzle 4, axle journal 5, super-pressure drilling fluid runner 6, it is characterized in that described bit body 1 inner chamber is provided with drilling fluid runner 2, bit body 1 inner chamber and gear wheel 3 are provided with super-pressure drilling fluid runner 6, on this super-pressure drilling fluid runner 6, super-pressure nozzle 4 are installed.
Drilling fluid runner 2 is connected with the drilling well surface pump.Super-pressure drilling fluid runner 6 tops are connected with the booster pump of drill string bottom, and the bottom is connected with super-pressure nozzle 4.Between super-pressure drilling fluid runner 6 and booster pump, between super-pressure drilling fluid runner 6 and super-pressure nozzle 4, sealing device is installed.Super-pressure nozzle 4 is fixed together by being threaded with axle journal 5.
During use, the drilling fluid of drilling fluid runner 2 is from surface pump, and the drilling fluid of super-pressure drilling fluid runner 6 is from the booster pump of drill string bottom.The super-pressure drilling fluid that the booster pump of drill string bottom provides to super-pressure nozzle 4, by 4 ejections of super-pressure nozzle, plays bottom-hole cleaning and auxiliary rock function by super-pressure drilling fluid runner 6.
Claims (5)
1. super-pressure drilling well single-cone rotary drill bit, comprise bit body, drilling fluid runner, gear wheel, super-pressure nozzle, axle journal, super-pressure drilling fluid runner, it is characterized in that described bit body inner chamber is provided with the drilling fluid runner, bit body inner chamber and gear wheel are provided with super-pressure drilling fluid runner, on this super-pressure drilling fluid runner, the super-pressure nozzle are installed.
2. super-pressure drilling well single-cone rotary drill bit according to claim 1, is characterized in that described drilling fluid runner is connected with the drilling well surface pump.
3. super-pressure drilling well single-cone rotary drill bit according to claim 1 is characterized in that described super-pressure drilling fluid runner top is connected with the booster pump of drill string bottom, and the bottom is connected with the super-pressure nozzle.
4. according to claim 1 or 3 described super-pressure drilling well single-cone rotary drill bits is characterized in that between described super-pressure drilling fluid runner and booster pump, sealing device are installed between super-pressure drilling fluid runner and super-pressure nozzle.
5. according to claim 1 or 3 described super-pressure drilling well single-cone rotary drill bits, is characterized in that described super-pressure nozzle is fixed together by being threaded with axle journal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220558678 CN202970480U (en) | 2012-10-29 | 2012-10-29 | Mono-cone bit for ultrahigh pressure drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220558678 CN202970480U (en) | 2012-10-29 | 2012-10-29 | Mono-cone bit for ultrahigh pressure drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202970480U true CN202970480U (en) | 2013-06-05 |
Family
ID=48511568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220558678 Expired - Fee Related CN202970480U (en) | 2012-10-29 | 2012-10-29 | Mono-cone bit for ultrahigh pressure drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202970480U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806168A (en) * | 2014-01-26 | 2015-07-29 | 北京加华维尔能源技术有限公司 | Novel hydraulic roller bit |
-
2012
- 2012-10-29 CN CN 201220558678 patent/CN202970480U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806168A (en) * | 2014-01-26 | 2015-07-29 | 北京加华维尔能源技术有限公司 | Novel hydraulic roller bit |
| CN104806168B (en) * | 2014-01-26 | 2019-04-02 | 北京加华维尔能源技术有限公司 | A kind of novel hydropower structure rock bit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104695892B (en) | A kind of independent hydraulically-controlled type compression packer | |
| CN201460734U (en) | High-pressure water jet coal seam drilling and reaming system | |
| CN203856412U (en) | High-pressure water jet drilling and cutting integrated drill bit | |
| WO2012023052A3 (en) | High efficiency hydraulic drill bit | |
| CN202900225U (en) | Stage-number-unlimited intelligent well cementation sliding sleeve layered fracturing reconstruction process pipe column | |
| CN106837327A (en) | A kind of water-saving and synergistic automatic control hydraulic cutterhead | |
| CN105317380B (en) | A kind of variable-flow bores and rushes unitary nozzle | |
| CN103993837B (en) | A kind of water conservancy punching high-low pressure changes drill bit automatically | |
| CN205154021U (en) | Drill bit is sprayed to rotation type | |
| CN202970480U (en) | Mono-cone bit for ultrahigh pressure drilling | |
| CN202105746U (en) | Spray head for cleaning oil-water well | |
| CN205297350U (en) | From booster -type PDC drill bit | |
| CN201991503U (en) | Nozzle-built-in hydraulic jet | |
| CN203420679U (en) | Large-displacement composite lifting system for deep well and ultra-deep well | |
| CN205778536U (en) | A kind of drilling in coal anti-blocking instrument of jet deslagging | |
| CN102409979B (en) | Stone-crushing drill bit | |
| CN202047782U (en) | Swabbing steel wire rope spray-prevention device | |
| CN105903586A (en) | Combined double-jet nozzle | |
| CN204920925U (en) | Accurate eccentric water filling tool of oil -field flooding well | |
| CN208502674U (en) | A kind of two-way injection core bit of reduction chip hold down effect | |
| CN104806168B (en) | A kind of novel hydropower structure rock bit | |
| CN203383743U (en) | One-way non-return drill rod for coal mine | |
| CN202832413U (en) | Middle and shallow layer gas well liquid drainage process pipe column | |
| CN201593406U (en) | Sand jet perforator structure for improving use life | |
| CN106930700A (en) | A kind of auto-pressurizing PDC drill bit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131029 |