CN2906031Y - Plunger type micro-reaming while drilling tool - Google Patents
Plunger type micro-reaming while drilling tool Download PDFInfo
- Publication number
- CN2906031Y CN2906031Y CN 200620099992 CN200620099992U CN2906031Y CN 2906031 Y CN2906031 Y CN 2906031Y CN 200620099992 CN200620099992 CN 200620099992 CN 200620099992 U CN200620099992 U CN 200620099992U CN 2906031 Y CN2906031 Y CN 2906031Y
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- CN
- China
- Prior art keywords
- plunger
- cutting
- teeth
- combination
- tungsten carbide
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- Expired - Fee Related
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Abstract
The utility model relates to a plunger-type tool for expanding hole along with a drill, which primarily comprises a body unit, a positioning briquetting unit and a cutting plunger unit. The cutting plunger unit comprises a tungsten carbide sintered body, shake damping teeth, cutting teeth, a preset rectangular slanting nozzle, a release spring with a inner-placed plunger, a plunger body steel core and a spring press cap. The tungsten carbide sintered body and the plunger body steel core are sintered to form a cutting plunger; a rectangular slanting nozzle is preset and the shake damping teeth and the cutting teeth are inlaid in the teeth hole which is preset on the cutting surface; the release spring with a inner-placed plunger is connected to the plunger through the screw thread after placing inside the cutting plunger chamber. This utility model is of simple structure, easy operation and can decrease the possibility of bit balling of the reaming tools.
Description
Technical field
The utility model relate to oil-gas field development in the petroleum industry, the enlarging while drilling device that uses in the ore deposit probing, particularly a kind of plunger type is with boring little reaming tool.
Background technology
At present, along with exploration, development field constantly enlarge, casing window sidetracking, old well are deepened, The Application of Technology such as slim-hole is crept into, complex area probing have become the important technical of producing in each Oilfield Company oil gas increasing the storage.These technology owing to exist a variety of causes, need carry out hole enlargement to well in present application process, are lowered to difficulty and cementing quality and cannot say for sure problem appearance such as card to reduce in the wellbore construction process bit freezing, sleeve pipe.For solving the reaming hole problem, having developed with the gear wheel re-drill bit is the first generation underreamer instrument of representative, finds in the use that this re-drill bit short, easy lost cone in application life, drilling speed wait problem slowly.In recent years, along with the expansion in reaming hole field, the underreamer instrument that develops into of novel superhard material provides wide development space simultaneously.Each big downhole tool manufacturing company is all studied for this reason, and has obtained some achievements.In the reaming hole in oil field creeps into, obtained using preferably as diplocardia (off-centre) re-drill bit, reduced down hole problem, improved drilling well timeliness and cementing quality.But this drill bit in drilling process, mainly show as torque-on-bit big, sprain that it is serious to jump, drill bit and drill string have all been caused infringement in various degree; Owing to this drill bit pilot bit and reaming hole partly are made of one in addition, make drill bit not have commutativity to the adaptive capacity difference and the drill bit on stratum, the work stress of diplocardia drill bit has determined that the well that it gets out is the screw type well simultaneously, cause wellbore quality relatively poor, brought potential safety hazard to follow-up work.Developed and set upright re-drill bit (joint) for addressing the above problem domestic certain company, though to certain help of the solution of the problems referred to above, owing to still adopt monolateral cutting during reaming hole, instrument is subjected to force unbalance, therefore can not fundamentally address the above problem.External certain company has developed concentric collapsible reamer, though the stressed balance that reached of instrument, cutting teeth can not get effective cleaning, the mud drum phenomenon usually occurs, has influenced reaming hole efficient.
Summary of the invention
The purpose of this utility model is to provide a kind of plunger type with boring little reaming tool, solves poor, the instrument discontinuity equalization of ground adaptability that present reaming hole instrument exists, and problems such as mud drum easily take place.
The utility model mainly by adopting three cutting plunger distribution equalizing structures, mainly makes up three parts by body combination, location briquetting combination, cutting plunger and forms, and body makes up and comprises that mainly body 1, instrument set upright wear-resistant block 14, drilling tool junction button 15 up and down; Location briquetting combination mainly comprises location briquetting 2, briquetting bolt 3, bolt 7 etc. resets; The combination of cutting plunger mainly comprises cutting plunger 4, tungsten carbide sintered body 6, damping tooth 8, cutting teeth 9, the oblique nozzle 10 of presetting system rectangle, the built-in back-moving spring 11 of plunger, plunger body steel core 12, spring pressure cap 13; Cutting plunger 4 is sintered into one by tungsten carbide sintered body 6 and plunger body steel core 12, preset the oblique nozzle 10 of rectangle, the reservation perforation is arranged on the cutting face, damping tooth 8 and cutting teeth 9 difference welding-ons are to reserving in the perforation, cutting plunger 4 inner chambers are equipped with built-in back-moving spring 11, and spring pressure cap 13 is connected with cutting plunger 4 by screw thread.
The utility model adopts the tungsten carbide sintered body in cutting plunger cutting end, has strengthened cutting plunger anti-impact erosion ability, has improved cutting plunger working life; Adopt the oblique nozzle mode of presetting system rectangle on the cutting plunger, when reaming hole,, reduced the possibility of reaming hole instrument mud drum, improved with boring reaming hole efficient by jet cooling and cleaning cutting teeth; After the reaming hole instrument quits work, under the effect of built-in back-moving spring, will cut plunger body and regain.This tool construction is simple, and is easy to operate, carries out with brill reaming hole efficient height at soft formation, and can guarantee downhole safety.
Description of drawings
Fig. 1 is the utility model structural representation
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description.
As shown in Figure 1, the utility model adopts three cutting plunger distribution equalizing structures, is made of three parts such as body combination, location briquetting combination, the combinations of cutting plunger, and the body combination comprises that mainly body 1, instrument set upright wear-resistant block 14, drilling tool junction button 15 etc. up and down; Location briquetting combination mainly comprises location briquetting 2, briquetting bolt 3, bolt 7 etc. resets; Its difference with the prior art mainly is to cut the plunger combination, and the combination of the utility model cutting plunger mainly comprises cutting plunger 4, tungsten carbide sintered body 6, damping tooth 8, cutting teeth 9, the oblique nozzle 10 of presetting system rectangle, the built-in back-moving spring 11 of plunger, plunger body steel core 12, spring pressure cap 13.
Cutting plunger 4 is sintered into one by tungsten carbide sintered body 6 and plunger body steel core 12, and preset the oblique nozzle 10 of rectangle, on the cutting face, reserve perforation, damping tooth 8 and cutting teeth 9 are distinguished welding-ons to reserving in the perforation, make above-mentioned each unit form an integral body, the built-in back-moving spring 11 of plunger is packed into behind cutting plunger 4 inner chambers,, make back-moving spring 11 bear certain precompression with being threaded onto on the plunger 4 of spring pressure cap 13.The bolt 7 that resets further compresses back-moving spring 11 with the bolt tip that resets by the bolt slot that resets that cuts plunger 4, makes cutting plunger 4 be in the recovery state, prevents to cut the circumferential rotation of plunger 4 simultaneously.
Because this instrument adopts three plunger distribution equalizing structures, therefore, the instrument stress balance; This instrument is made up of three parts such as body, location briquetting, cutting plungers, is independently mutually, is convenient to change; The tungsten carbide sintered body is adopted in cutting plunger cutting end, has strengthened cutting plunger anti-impact erosion ability; When the reaming hole instrument was not worked, by the control drilling fluid displacement, the cutting plunger was in contraction state under the effect of pre-pressure of the spring; When wanting reaming hole, rotary drill column, and by strengthening drilling fluid displacement, the cutting plunger stretches out under the effect of drilling tool inside and outside differential pressure, drilling fluid forms jet by the oblique nozzle of rectangle in the cutting plunger, cleans the cooling cutting teeth, starts working, the bolt that resets this moment further compresses back-moving spring, and has limited the circumferential rotation of cutting plunger by the reseting groove on the cutting plunger; Termination of pumping when instrument is not worked, the cutting plunger reclaims under the effect of back-moving spring.This structure can farthest improve anti-impact erosion ability, the stability of tool work and the cleansing power of cutting teeth of cutting, thereby has reached the purpose of efficient reaming hole.
The utility model operating principle is as follows: during reaming hole, rotary drill column, strengthen drilling fluid displacement, the cutting plunger stretches out under the effect of drilling tool inside and outside differential pressure, drilling fluid forms jet by the oblique nozzle of rectangle in the cutting plunger, cleans the cooling cutting teeth, starts working, the bolt that resets this moment further compresses back-moving spring, and has limited the circumferential rotation of cutting plunger by the reseting groove on the cutting plunger; When instrument is not worked, termination of pumping, the cutting plunger reclaims under the effect of back-moving spring.
Claims (1)
1. a plunger type is with boring little reaming tool, adopt three cutting plunger distribution equalizing structures, mainly make up three parts by body combination, location briquetting combination, cutting plunger and forms, body makes up and comprises that mainly body (1), instrument set upright wear-resistant block (14), drilling tool junction button (15) up and down; Location briquetting combination mainly comprises location briquetting (2), briquetting bolt (3), the bolt that resets (7); It is characterized in that: the combination of cutting plunger mainly comprises cutting plunger (4), tungsten carbide sintered body
(6), damping tooth (8), cutting teeth (9), the oblique nozzle of presetting system rectangle (10), the built-in back-moving spring of plunger (11), plunger body steel core (12), spring pressure cap (13); Cutting plunger (4) is sintered into one by tungsten carbide sintered body (6) and plunger body steel core (12), preset the oblique nozzle of rectangle (10), the reservation perforation is arranged on the cutting face, damping tooth (8) and cutting teeth (9) difference welding-on are to reserving in the perforation, cutting plunger (4) inner chamber is equipped with built-in back-moving spring (11), and spring pressure cap (13) is connected with cutting plunger (4) by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620099992 CN2906031Y (en) | 2006-03-31 | 2006-03-31 | Plunger type micro-reaming while drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620099992 CN2906031Y (en) | 2006-03-31 | 2006-03-31 | Plunger type micro-reaming while drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2906031Y true CN2906031Y (en) | 2007-05-30 |
Family
ID=38114665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620099992 Expired - Fee Related CN2906031Y (en) | 2006-03-31 | 2006-03-31 | Plunger type micro-reaming while drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2906031Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615196A (en) * | 2013-12-12 | 2014-03-05 | 西南石油大学 | Plunger type significantly-variable-diameter reaming-while-drilling tool |
| CN103758450A (en) * | 2014-01-17 | 2014-04-30 | 北京市市政工程研究院 | Self-drilling anchor rod boring device capable of reaming at the same time |
-
2006
- 2006-03-31 CN CN 200620099992 patent/CN2906031Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615196A (en) * | 2013-12-12 | 2014-03-05 | 西南石油大学 | Plunger type significantly-variable-diameter reaming-while-drilling tool |
| CN103758450A (en) * | 2014-01-17 | 2014-04-30 | 北京市市政工程研究院 | Self-drilling anchor rod boring device capable of reaming at the same time |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081212 Address after: Hongyan Karamay Road, the Xinjiang Uygur Autonomous Region No. 80, zip code: 834000 Patentee after: Western Drilling Kelamayi Drilling Technology Institute Address before: Hongyan Karamay Road, the Xinjiang Uygur Autonomous Region No. 80, zip code: 834000 Patentee before: Research Inst of Drilling Technology, Xinjiang Petroleum Administration |
|
| ASS | Succession or assignment of patent right |
Owner name: WEST DRILLING KARAMAY DRILLING CRAFT RESEARCH INST Free format text: FORMER OWNER: DRILLING WELL TECHNOLOGY INSTITUTE, PETROLEUM ADMINISTRATION BUREAU, XINJIANG Effective date: 20081212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070530 Termination date: 20150331 |
|
| EXPY | Termination of patent right or utility model |