CN205154021U - Drill bit is sprayed to rotation type - Google Patents
Drill bit is sprayed to rotation type Download PDFInfo
- Publication number
- CN205154021U CN205154021U CN201520838682.3U CN201520838682U CN205154021U CN 205154021 U CN205154021 U CN 205154021U CN 201520838682 U CN201520838682 U CN 201520838682U CN 205154021 U CN205154021 U CN 205154021U
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- injector head
- stator
- drill bit
- blind hole
- hole
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Abstract
The utility model provides a drill bit is sprayed to rotation type belongs to the well drilling field. This drill bit is sprayed to rotation type includes top connection, stator, rotor and injector head, the stator is opened has the central through hole, is equipped with the step at the lower extreme of through -hole, be equipped with helical blade on the rotor, the lower extreme of top connection is connected with the upper end of stator, helical blade on the rotor is located the central through hole of stator, the other end of rotor wear out behind the lower extreme of stator with the rear end of injector head is connected.
Description
Technical field
The utility model belongs to drilling applications, is specifically related to a kind of rotary spray drill bit.
Background technology
Radially horizontal well drilling technology utilizes high-pressure water jet radially to get out the drilling technology of multiple horizontal branch well in certain one deck position of oil reservoir or multiple layers of position.This technology not only may be used for the exploitation of new well but also is applicable to carrying out the transformation of old well, is conducive to the volume increase carrying out oil sheet, Low permeable oil and gas reservoirs and coal bed gas.Jet bit is one of core tool of radially horizontal well technology, and its effect not only will carry out brokenly rock, is also necessary for branching hose advance and provides power.The jet bit that current radially horizontal well technology uses all carries out fragmentation in continuous direct projection stream impact failure mode to rock stratum, when the instantaneous impact of Jetstream fluid is greater than the breaking strength of rock, rock will be broken, but under continuous stream floodage, because water cushion effect reduces the instantaneous impact of Jetstream fluid, reduce efficiency of breaking rock.
Utility model content
The purpose of this utility model is that the jet bit efficiency of breaking rock solving existing radially horizontal well is lower, and the problem that well is little provides a kind of rotary spray drill bit.
The utility model is achieved through the following technical solutions:
A kind of rotary spray drill bit, comprises top connection, stator, rotor and injector head;
Described stator has central through hole, is provided with step in the lower end of through hole;
Described rotor is provided with helical blade;
The lower end of described top connection is connected with the upper end of stator; Described epitrochanterian helical blade is positioned at the central through hole of stator, is connected after the other end of rotor passes the lower end of stator with the rear end of described injector head.
Described rotor comprises the helical blade, conical section, large footpath section and the path section that connect successively from top to bottom;
Have with path section the central blind hole be communicated with in described conical section, large footpath section, the cecum of described blind hole is positioned at conical section, and the openend of blind hole is positioned at the bottom face of path section;
Described conical section has four inclined holes, and described blind hole is communicated with rotor exterior by described inclined hole;
Described inclined hole tilts to helical blade direction.
The lead angle of described helical blade is 45-60 °
The large footpath section of described rotor and the transition position of path section form step, between this step and the step of stator lower end, be provided with thrust bearing.
The external cylindrical surface of the large footpath section of described rotor has groove, in groove, is provided with sealing ring.
Blind hole is provided with in the inside of described injector head, the openend of blind hole is positioned on the rear end face of injector head, the inwall of openend is provided with screw thread, is provided with screw thread in the lower end of the path section of described rotor, be connected with the rear end of injector head by screw thread after path section passes stator; The cecum of described blind hole is positioned at the front end of injector head; Blind hole openend on described stator is communicated with the openend of the blind hole of injector head inside;
Be provided with main injection orifice in the front end of described injector head, it is connected with the cecum of blind hole;
The circumference at the middle part of described injector head is evenly provided with four secondary spray-holes, and described secondary spray-hole is by the ft connection of the blind hole in injector head and injector head.
Each described secondary spray-hole all tilts to the rear end of injector head, and the central axis angle of its central axis and injector head is 30 °.
The lower end of described top connection and the upper end of stator are by screwed connection, and the upper end of described top connection is connected with flexible pipe.
Compared with prior art, the beneficial effects of the utility model are:
(1) injector head of the present utility model can rotate, and weakens water cushion effect, improves efficiency of breaking rock;
(2) the secondary spray-hole of injector head produces backward jet, advances the utility model to advance;
(3) injector head can rotate, the well more rounding that secondary spray-hole backward jet is formed, and well is larger, improves oil recovery.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of rotary spray drill bit of the utility model;
In figure: 1. top connection, 2. stator, 3. rotor, 4. thrust bearing, 5. injector head.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, a kind of rotary spray drill bit of the utility model, comprise top connection 1, stator 2, rotor 3, thrust bearing 4 and injector head 5, wherein, rotor 3 top is set to helical blade, and lead angle is 45-60 °, bottom is set to Step Shaft, Step Shaft lower end is set to screw thread, and Step Shaft inside is set to blind hole, and in the middle part of rotor 3, circumference evenly arranges four inclined holes connection rotor 3 outsides and blind hole; Injector head 5 inside arranges a blind hole, blind hole port is set to screw thread, and injector head 5 front end arranges a main injection orifice, and in the middle part of injector head 5, circumference evenly arranges four secondary spray-holes, secondary spray-hole central axis and injector head 5 central axis angle are 30 °, secondary spray-hole Way out deflection injector head rear end; Thrust bearing 4 is arranged on the step of rotor 3 Step Shaft, rotor 3 lower end and injector head 5 upper end screwed connection; In stator 2, bore end is set to step surface, and rotor 3 and thrust bearing 4 insert stator 2 inner chamber; Top connection 1 lower end and stator 2 upper end screwed connection, top connection 1 upper end is connected with flexible pipe.
Injector head of the present utility model can rotate, and weakens water cushion effect, extra-high efficiency of breaking rock; Injector head can rotate, the well more rounding that secondary spray-hole backward jet is formed, and well is larger, improves oil recovery.
Technique scheme is a kind of embodiment of the present utility model, for those skilled in the art, on the basis that the utility model discloses principle, be easy to make various types of improvement or distortion, and the structure be not limited only to described by the above-mentioned specific embodiment of the utility model, therefore previously described just preferred, and not there is restrictive meaning.
Claims (8)
1. a rotary spray drill bit, is characterized in that: described rotary spray drill bit comprises top connection, stator, rotor and injector head;
Described stator has central through hole, is provided with step in the lower end of through hole;
Described rotor is provided with helical blade;
The lower end of described top connection is connected with the upper end of stator; Described epitrochanterian helical blade is positioned at the central through hole of stator, is connected after the other end of rotor passes the lower end of stator with the rear end of described injector head.
2. rotary spray drill bit according to claim 1, is characterized in that: described rotor comprises the helical blade, conical section, large footpath section and the path section that connect successively from top to bottom;
Have with path section the central blind hole be communicated with in described conical section, large footpath section, the cecum of described blind hole is positioned at conical section, and the openend of blind hole is positioned at the bottom face of path section;
Described conical section has four inclined holes, and described blind hole is communicated with rotor exterior by described inclined hole;
Described inclined hole tilts to helical blade direction.
3. rotary spray drill bit according to claim 2, is characterized in that: the lead angle of described helical blade is 45-60 °
4. rotary spray drill bit according to claim 3, is characterized in that: the large footpath section of described rotor and the transition position of path section form step, between this step and the step of stator lower end, be provided with thrust bearing.
5. rotary spray drill bit according to claim 4, is characterized in that: on the external cylindrical surface of the large footpath section of described rotor, have groove, in groove, be provided with sealing ring.
6. rotary spray drill bit according to claim 5, it is characterized in that: be provided with blind hole in the inside of described injector head, the openend of blind hole is positioned on the rear end face of injector head, the inwall of openend is provided with screw thread, be provided with screw thread in the lower end of the path section of described rotor, be connected with the rear end of injector head by screw thread after path section passes stator; The cecum of described blind hole is positioned at the front end of injector head; Blind hole openend on described stator is communicated with the openend of the blind hole of injector head inside;
Be provided with main injection orifice in the front end of described injector head, it is connected with the cecum of blind hole;
The circumference at the middle part of described injector head is evenly provided with four secondary spray-holes, and described secondary spray-hole is by the ft connection of the blind hole in injector head and injector head.
7. rotary spray drill bit according to claim 6, is characterized in that: each described secondary spray-hole all tilts to the rear end of injector head, and the central axis angle of its central axis and injector head is 30 °.
8. according to the arbitrary described rotary spray drill bit of claim 1 to 7, it is characterized in that: the lower end of described top connection and the upper end of stator are by screwed connection, and the upper end of described top connection is connected with flexible pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520838682.3U CN205154021U (en) | 2015-10-28 | 2015-10-28 | Drill bit is sprayed to rotation type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520838682.3U CN205154021U (en) | 2015-10-28 | 2015-10-28 | Drill bit is sprayed to rotation type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205154021U true CN205154021U (en) | 2016-04-13 |
Family
ID=55689729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520838682.3U Active CN205154021U (en) | 2015-10-28 | 2015-10-28 | Drill bit is sprayed to rotation type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205154021U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105920767A (en) * | 2016-06-13 | 2016-09-07 | 西安新竹防灾救生设备有限公司 | Rotary type fire extinguishing agent nozzle |
| CN105927160A (en) * | 2016-06-21 | 2016-09-07 | 宜昌神达石油机械有限公司 | Rotary jet flow PDC drill bit |
| CN107120061A (en) * | 2017-05-15 | 2017-09-01 | 中国石油天然气股份有限公司 | Tubing string |
| CN108468510A (en) * | 2018-06-05 | 2018-08-31 | 张成功 | A kind of downhole tool rotating device |
-
2015
- 2015-10-28 CN CN201520838682.3U patent/CN205154021U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105920767A (en) * | 2016-06-13 | 2016-09-07 | 西安新竹防灾救生设备有限公司 | Rotary type fire extinguishing agent nozzle |
| CN105927160A (en) * | 2016-06-21 | 2016-09-07 | 宜昌神达石油机械有限公司 | Rotary jet flow PDC drill bit |
| CN107120061A (en) * | 2017-05-15 | 2017-09-01 | 中国石油天然气股份有限公司 | Tubing string |
| CN108468510A (en) * | 2018-06-05 | 2018-08-31 | 张成功 | A kind of downhole tool rotating device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |