CN203081290U - Radial well casing pipe drilling device - Google Patents
Radial well casing pipe drilling device Download PDFInfo
- Publication number
- CN203081290U CN203081290U CN 201320034958 CN201320034958U CN203081290U CN 203081290 U CN203081290 U CN 203081290U CN 201320034958 CN201320034958 CN 201320034958 CN 201320034958 U CN201320034958 U CN 201320034958U CN 203081290 U CN203081290 U CN 203081290U
- Authority
- CN
- China
- Prior art keywords
- pressure hose
- small screw
- oil pipe
- casing pipe
- radial well
- 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 - Lifetime
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Abstract
The utility model discloses a radial well casing pipe drilling device in the technical field of drilling down-hole tools and aims to solve the problems that a window cutting drill is low in work efficiency due to the fact that a high-pressure hose can not effectively transfer pressure in the prior art. The radial well casing pipe drilling device comprises a steering device. The upper end of the steering device is connected with a first oil pipe through a changing buckle joint. A continuous oil pipe is arranged inside the first oil pipe. The lower end of the continuous oil pipe is connected with a high-pressure hose. A guiding channel communicating the top with the side wall of the steering device is further arranged inside the steering device. A cardan joint is arranged inside the guiding channel in a penetrating mode. The upper end of the cardan joint is connected with a small screw, and the lower end of the cardan joint is connected with the windowing cutting drill. A weighing rod is further arranged between the small screw and the high-pressure hose. The upper end of the weighing rod is connected with the lower end of the high-pressure hose. The lower end of the weighing rod is connected with the upper end of the small screw. The radial well casing pipe drilling device can effectively avoid distortion of the high-pressure hose, ensures that the window cutting drill can bear enough forward pushing force, and remarkably improves work efficiency of casing pipe drilling.
Description
Technical field
The utility model relates to a kind of drilling well downhole tool, and particularly a kind of radial well cased bore-bole device is applicable to underground mining fields such as oil, natural gas.
Background technology
Jetting radial bore technology is a new technique that can compare favourably with horizontal well, because of it has stronger rock-breaking drilling ability, can realize in sleeve pipe by vertically turning to for 90 ° to horizontal direction, thereby can solve a LOW PERMEABILITY RESERVOIR exploitation difficult problem effectively.Its groundwork principle is by utilizing the hydraulic drilling effect of high-pressure water jet, get out 4-6 the small well of level in same oil reservoir, thereby increases the earial drainage radius of former well, reaches the purpose of volume increase, augmented injection.It has overcome the long short shortcoming of the technology of waterpower deep penetration in the past radial hole, radical length can be extended to 100 meters, and diameter reaches 25 to 50 millimeters, and operating expenses is low, and the efficiency of construction height is a kind of breakthrough to conversion LOW PERMEABILITY RESERVOIR development scheme.Mill sidetracking yet all needing implements window to forge to sleeve pipe before implementing jetting radial bore technology,, directly have influence on cycle, the cost of drilling well, when serious even can cause scrapping of a bite well as windowing of one of casing side tracking key technology.How to guarantee the one-time success rate of casing sidetracking, the high efficiency that raising is windowed, be one of problem of puzzlement oil field SIDETRACKING TECHNOLOGY always.
A kind of radial well cased bore-bole device is arranged in the prior art, comprise steering gear, the upper end of steering gear is connected with first oil pipe by becoming the snapping head, is provided with coiled tubing in first oil pipe, and the lower end of coiled tubing is connected with high-pressure hose; The inside of steering gear also offers the guide channel that is communicated with steering gear top and sidewall, is equipped with universal joint in the guide channel, and the upper end of universal joint is connected with small screw, and the lower end is connected with the drill bit of windowing, and the upper end of small screw directly is connected with the lower end of high-pressure hose.During work, can stability and high efficiency work for making the drill bit of windowing, need apply a constant forward direction motive force to it, in conventional device, this source pressure is in two aspects: be the gravity of small screw on the one hand, the transmission by universal joint is transformed into horizontal impulse; Be on the other hand coiled tubing by high-pressure hose indirectly to the drill bit applied pressure of windowing.
Its weak point is: because high-pressure hose is a kind of flexible member, distortion easily deforms after being subjected to the pushing of coiled tubing and small screw, can't effectively transmit the applied pressure of coiled tubing to the drill bit of windowing, cause windowing drill bit operating efficiency and success rate are lower.
The utility model content
The purpose of this utility model overcomes deficiency of the prior art, provides a kind of cased bore-bole success rate, the radial well cased bore-bole device of the drill bit high efficiency of windowing.
The purpose of this utility model is achieved in that radial well cased bore-bole device, comprises steering gear, and the upper end of described steering gear is connected with first oil pipe by becoming the snapping head, is provided with coiled tubing in first oil pipe, and the lower end of coiled tubing is connected with high-pressure hose; The inside of described steering gear also offers the guide channel that is communicated with steering gear top and sidewall, be equipped with universal joint in the guide channel, the upper end of described universal joint is connected with small screw, the lower end is connected with the drill bit of windowing, also be provided with weighted lever between described small screw and the high-pressure hose, the upper end of described weighted lever is connected with the lower end of high-pressure hose, and the lower end of described weighted lever is connected with the upper end of small screw.
The utility model before use, successively coiled tubing, high-pressure hose, weighted lever, small screw, universal joint and the drill bit of windowing are assembled, assembly after the assembling is transferred to first oil pipe then, guide effect through steering gear inner orientation passage, the location drilling position starts the drill bit drive unit of windowing at last and implements the cased bore-bole operation.Compared with prior art the beneficial effects of the utility model are: owing to set up weighted lever between small screw and high-pressure hose, can effectively avoid the high-pressure hose torsional deformation, guaranteed simultaneously to window and born enough forward direction motive forces on the drill bit, significantly improved the operating efficiency of cased bore-bole.
As further improvement of the utility model, described small screw is connected with weighted lever by locking screw respectively with high-pressure hose, guarantees reliable connection the between weighted lever and small screw, the high-pressure hose, effectively prevents to get loose.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Wherein, 1 steering gear; 101 guide channels; 2 become the snapping head; 3 first oil pipes; 4 coiled tubings; 5 small screws; 6 high-pressure hoses; 7 universal joints; 8 drill bits of windowing; 9 weighted levers.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1, radial well cased bore-bole device comprises steering gear 1, and the upper end of steering gear 1 is connected with in first oil pipe, 3, the first oil pipes 3 by change snapping head 2 and is provided with coiled tubing 4, and the lower end of coiled tubing 4 is connected with high-pressure hose 6; The inside of steering gear 1 also offers the guide channel 101 that is communicated with steering gear 1 top and sidewall, be equipped with universal joint 7 in the guide channel 101, the upper end of universal joint 7 is connected with small screw 5, the lower end is connected with the drill bit 8 of windowing, also be provided with weighted lever 9 between small screw 5 and the high-pressure hose 6, the upper end of weighted lever 9 is connected with the lower end of high-pressure hose 6, the lower end of weighted lever 9 is connected with the upper end of small screw 5, the diameter of weighted lever 9 should be less than the internal diameter of first oil pipe 3, to guarantee that weighted lever 9 can stretch into first oil pipe, 3 inside smoothly.For guaranteeing reliable connection the between weighted lever 9 and small screw 5, the high-pressure hose 6, effectively prevent to get loose, small screw 5 is connected with weighted lever 9 by locking screw respectively with high-pressure hose 6.
The utility model is not limited to the foregoing description; on the basis of the disclosed technical scheme of the utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in protection domain of the present utility model.
Claims (2)
1. radial well cased bore-bole device comprises steering gear, and the upper end of described steering gear is connected with first oil pipe by becoming the snapping head, is provided with coiled tubing in first oil pipe, and the lower end of coiled tubing is connected with high-pressure hose; The inside of described steering gear also offers the guide channel that is communicated with steering gear top and sidewall, be equipped with universal joint in the guide channel, the upper end of described universal joint is connected with small screw, the lower end is connected with the drill bit of windowing, it is characterized in that, also be provided with weighted lever between described small screw and the high-pressure hose, the upper end of described weighted lever is connected with the lower end of high-pressure hose, and the lower end of described weighted lever is connected with the upper end of small screw.
2. radial well cased bore-bole device according to claim 1 is characterized in that described small screw is connected with weighted lever by locking screw respectively with high-pressure hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320034958 CN203081290U (en) | 2013-01-23 | 2013-01-23 | Radial well casing pipe drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320034958 CN203081290U (en) | 2013-01-23 | 2013-01-23 | Radial well casing pipe drilling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203081290U true CN203081290U (en) | 2013-07-24 |
Family
ID=48827141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320034958 Expired - Lifetime CN203081290U (en) | 2013-01-23 | 2013-01-23 | Radial well casing pipe drilling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203081290U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868676A (en) * | 2018-05-31 | 2018-11-23 | 中国石油集团长城钻探工程有限公司 | It is a kind of cross casing penetrate side-wall coring tool |
| CN109332740A (en) * | 2018-10-23 | 2019-02-15 | 中国石油天然气集团有限公司 | Drilling radial hole device with traction device |
| CN110067507A (en) * | 2018-01-23 | 2019-07-30 | 中石化石油工程技术服务有限公司 | A kind of flexible pressuring device suitable for radial bore operation |
| CN110821433A (en) * | 2019-12-27 | 2020-02-21 | 胜利油田高原石油装备有限责任公司 | Radial windowing and drilling device for underground casing of oil-water well |
-
2013
- 2013-01-23 CN CN 201320034958 patent/CN203081290U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067507A (en) * | 2018-01-23 | 2019-07-30 | 中石化石油工程技术服务有限公司 | A kind of flexible pressuring device suitable for radial bore operation |
| CN108868676A (en) * | 2018-05-31 | 2018-11-23 | 中国石油集团长城钻探工程有限公司 | It is a kind of cross casing penetrate side-wall coring tool |
| CN109332740A (en) * | 2018-10-23 | 2019-02-15 | 中国石油天然气集团有限公司 | Drilling radial hole device with traction device |
| CN110821433A (en) * | 2019-12-27 | 2020-02-21 | 胜利油田高原石油装备有限责任公司 | Radial windowing and drilling device for underground casing of oil-water well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130724 |
|
| CX01 | Expiry of patent term |