CN204782785U - Radial jet sleeve pipe is windowed and is worn away drill bit - Google Patents
Radial jet sleeve pipe is windowed and is worn away drill bit Download PDFInfo
- Publication number
- CN204782785U CN204782785U CN201520500923.3U CN201520500923U CN204782785U CN 204782785 U CN204782785 U CN 204782785U CN 201520500923 U CN201520500923 U CN 201520500923U CN 204782785 U CN204782785 U CN 204782785U
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- drill bit
- cutting edge
- sleeve pipe
- main cutting
- radial jet
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Abstract
The utility model discloses a radial jet sleeve pipe is windowed and is worn away drill bit. Radial jet sleeve pipe is windowed and is worn away drill bit, the crown of drill bit is provided with a plurality of main cutting edges (1) and assists cutting edge (2), the crisscross interval of main cutting edge (1) and assistance cutting edge (2) sets up, all main cutting edges (1) is collectd the top that forms 120 degrees at the crown top and is pierced the angle, the body periphery of drill bit is provided with the guarantor footpath muscle (3) of a plurality of connections in main cutting edge (1) and assistance cutting edge (2) rear end, form between adjacent guarantor footpath muscle (3) chip groove (5), chip groove (5) extend to the rear end from the front end of drill bit body. The utility model provides a current drill bit of windowing be difficult to the wedging sleeve pipe, cutting edge avalanche and drill chip return arranges the scheduling problem that has some setbacks, having avoided frequent and having played to run the drilling tool into the well to change the drill bit of windowing for the success rate is implemented to this technology and efficiency improves greatly, has good economy and social.
Description
Technical field
The utility model belongs to the technical field of drilling well, is specifically related to a kind of radial jet casing sidetracking and wears away drill bit.
Background technology
Radial jet drilling process technology is the novel technique of a kind of oil formation improvement volume increase of rising in the world recent years.The principle of technique is: the coiled tubing using band nozzle, act on by the hydraulic drilling of high-pressure spray on the different directions in oil reservoir and get out multiple slim-hole, lateral penetration contaminated zone, former well is allowed to increase drainage area, increase earial drainage radius and the area of former well, thus reach the object reducing oil flow resistance, volume increase.In the operation process of this process implementing, need the multiple apertures getting out different directions on well in operation sleeve pipe, and be mostly to be completed by the drill bit of windowing of hilted broadsword sword at present, existing drill bit has obvious defect, as: not easily wedging sleeve pipe, blade avalanche etc., efficiency of windowing can be caused low, and the replacing that needs frequently to make a trip is windowed drill bit, even operation failure, this process implementing success rate and efficiency are reduced, and easily causes equipment damage and economic loss.
Above-mentioned discussion content object be to reader introduce may to below by the various aspects of technology relevant for the various aspects of the present utility model be described and/or advocate, believe that this discussion content contributes to for reader with background's information, to be conducive to understanding various aspects of the present utility model better, therefore, should be appreciated that it is discuss to read these with this angle, instead of admit prior art.
Utility model content
The purpose of this utility model is avoid deficiency of the prior art and provide a kind of radial jet casing sidetracking to wear away drill bit, and its easy wedging sleeve pipe, efficiency of windowing is high.
The purpose of this utility model is achieved through the following technical solutions:
A kind of radial jet casing sidetracking is provided to wear away drill bit, the bizet of drill bit is provided with some main cutting edges and auxiliary cutting edge, main cutting edge and auxiliary cutting edge interlock interval arrange, all main cutting edges collect formation 120 degree top at bizet top pierces angle, the body peripheral of drill bit is provided with the gauge muscle that some are connected to main cutting edge and auxiliary cutting edge rear end, form chip area between adjacent gauge muscle, described chip area extends to rear end from the front end of drill body.
Wherein, described main cutting edge and auxiliary cutting edge are three, the maintenance interval, front end of the auxiliary cutting edge of each bar.
Wherein, the rear end of described drill body is provided with connecting through hole, and connecting through hole is used for being connected with universal joint by bolt.
The beneficial effects of the utility model: after the utility model is lowered into position, drill bit top can prop up sleeve pipe, because top pierces, angle designs according to cannula curve, article 3, main cutting edge 1 and 3 auxiliary cutting edges almost can prop up sleeve pipe simultaneously, play the effect of righting drill bit, under the transmission of hydraulic motor of windowing, drill bit 3 main cutting edges and 3 auxiliary cutting edges continue rotary cutting sleeve pipe, until complete the operation of radial jet casing sidetracking.The utility model solves existing drill bit of windowing and is not easy wedging sleeve pipe, blade avalanche and drilling cuttings return the problems such as row has some setbacks, avoid the replacing that frequently makes a trip to window drill bit, this process implementing success rate and efficiency are improved greatly, there is good economic and social benefit.
Accompanying drawing explanation
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in accompanying drawing does not form any restriction of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the following drawings.
Fig. 1 is the structural representation that radial jet casing sidetracking wears away drill bit.
Fig. 2 is the left view of Fig. 1.
Detailed description of the invention
The technical solution of the utility model is understood better in order to make those skilled in the art, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, it should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Core of the present utility model is to provide a kind of radial jet casing sidetracking to wear away drill bit, and its easy wedging sleeve pipe, efficiency of windowing is high.
As depicted in figs. 1 and 2, radial jet casing sidetracking described in the utility model wears away drill bit, the bizet of drill bit is provided with some main cutting edges 1 and auxiliary cutting edge 2, main cutting edge 1 and auxiliary cutting edge 2 interlock interval arrange, described main cutting edge 1 and auxiliary cutting edge 2 are three, and angle, six 60 degree, cutting edge intervals is uniformly distributed.All main cutting edges 1 collect formation 120 degree top at bizet top pierces angle, the maintenance interval, front end of the auxiliary cutting edge 2 of each bar.The body peripheral of drill bit is provided with the gauge muscle 3 that some are connected to main cutting edge 1 and auxiliary cutting edge 2 rear end, gauge muscle 3 is along the body shaft of drill bit to setting, form chip area 5 between adjacent gauge muscle 3, described chip area 5 extends to rear end from the front end of drill body.The rear end of described drill body is provided with connecting through hole 4, and connecting through hole 4 is for being connected with universal joint by bolt.
After the utility model is lowered into position, drill bit top can prop up sleeve pipe, because top pierces, angle designs according to cannula curve, because top pierces, angle designs according to cannula curve, article 3, main cutting edge 1 and 3 auxiliary cutting edges almost can prop up sleeve pipe simultaneously, play the effect of righting drill bit, under the transmission of hydraulic motor of windowing, drill bit 3 main cutting edges and 3 auxiliary cutting edges continue rotary cutting sleeve pipe, until complete the operation of radial jet casing sidetracking.
The application operating process of the utility model in certain high angle hole radial jet operation is: (1) is by outer for radial jet casing sidetracking tubing string lower going-into-well; (2) what ground was assembled wears away drill bit, universal joint and hydraulic motor and connects coiled tubing, and function test qualified rear coiled tubing in ground will be worn away drill bit of windowing and be sent to commutator position, wear away drill bit and prop up sleeve pipe; (3) jet pump is driven on ground, and subsurface hydraulic motor rotarily drives wears away bit cutting sleeve pipe; (4) the casing sidetracking time obtained according to ground experiment retentively the parameter such as face-pumping pressure amount until windowed; (5) play coiled tubing radial jet casing sidetracking is worn away drill bit to take out of, terminate this casing sidetracking operation.
Set forth a lot of detail in description above so that fully understand the utility model, but the utility model can also adopt other to be different from other modes described here and implement, and therefore, can not be interpreted as the restriction to the utility model protection domain.
In a word; although the utility model illustrates above-mentioned preferred embodiment; but should illustrate; although those skilled in the art can carry out various change and remodeling; unless such change and remodeling deviate from scope of the present utility model, otherwise all should be included in protection domain of the present utility model.
Claims (3)
1. a radial jet casing sidetracking wears away drill bit, it is characterized in that: the bizet of drill bit is provided with some main cutting edges (1) and auxiliary cutting edge (2), main cutting edge (1) and the staggered interval of auxiliary cutting edge (2) are arranged, all main cutting edges (1) collect formation 120 degree top at bizet top pierces angle, the body peripheral of drill bit is provided with the gauge muscle (3) that some are connected to main cutting edge (1) and auxiliary cutting edge (2) rear end, chip area (5) is formed between adjacent gauge muscle (3), described chip area (5) extends to rear end from the front end of drill body.
2. radial jet casing sidetracking according to claim 1 wears away drill bit, it is characterized in that: described main cutting edge (1) and auxiliary cutting edge (2) are three, the maintenance interval, front end of the auxiliary cutting edge of each bar (2).
3. radial jet casing sidetracking according to claim 1 and 2 wears away drill bit, it is characterized in that: the rear end of described drill body is provided with connecting through hole (4), and connecting through hole (4) is for being connected with universal joint by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520500923.3U CN204782785U (en) | 2015-07-10 | 2015-07-10 | Radial jet sleeve pipe is windowed and is worn away drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520500923.3U CN204782785U (en) | 2015-07-10 | 2015-07-10 | Radial jet sleeve pipe is windowed and is worn away drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204782785U true CN204782785U (en) | 2015-11-18 |
Family
ID=54522854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520500923.3U Active CN204782785U (en) | 2015-07-10 | 2015-07-10 | Radial jet sleeve pipe is windowed and is worn away drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204782785U (en) |
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2015
- 2015-07-10 CN CN201520500923.3U patent/CN204782785U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CNOOC (China) Limited Zhanjiang Branch Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 China oil tower, 25 Chaoyangmen North Street, Dongcheng District, Beijing Co-patentee before: CNOOC (China) Limited Zhanjiang Branch Patentee before: China National Offshore Oil Corporation |
|
| CP03 | Change of name, title or address |