CN204082062U - A kind of barefoot laterally drilling whipstock hanger - Google Patents
A kind of barefoot laterally drilling whipstock hanger Download PDFInfo
- Publication number
- CN204082062U CN204082062U CN201420500223.XU CN201420500223U CN204082062U CN 204082062 U CN204082062 U CN 204082062U CN 201420500223 U CN201420500223 U CN 201420500223U CN 204082062 U CN204082062 U CN 204082062U
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- China
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- piston
- base tube
- top connection
- slips
- cone
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of hard formation Multilateral Wells downhole tool, particularly a kind of barefoot laterally drilling whipstock hanger.The top connection lower end inner wall of this device connects base tube, between base tube and top connection, piston is installed, piston by sealing ring respectively with top connection, seal between base tube, piston is connected with top connection by shear pin, base tube has the hole be connected with piston upper end, piston withstands in cone, between piston and cone, inverted-proof ring is installed, cone lower end withstands on slips, slips is arranged on slip spider, slips external surface is provided with holdfast, slip spider is fixed on base tube by clench nail, base tube lower end connects guide shoe, guide shoe bottom inside wall is designed with the ball seat matched with ball.The utility model achieves upper and lower play when effectively preventing whipstock sidetracking from constructing, and improves the efficiency of construction of barefoot laterally drilling, simplifies construction technology, shortens construction period, reduces cost and drops into.
Description
Technical field:
The utility model relates to a kind of hard formation Multilateral Wells downhole tool, particularly a kind of barefoot laterally drilling whipstock hanger.
Background technology:
The first squeeze method of the many employings of existing barefoot laterally drilling re-uses unsettled SIDETRACKING TECHNOLOGY produce artificial bottom of a well after cement paste time is solidifying after.Usually, this method can be implemented smoothly in conventional stratum.But when hard formation especially migmatitic granite stratum is constructed because formation hardness is higher than cement hardness, stable fulcrum can not be provided to drilling tool during unsettled sidetracking, drill bit play is violent, usually bore cement and do not bore stratum and cause side tracking point constantly to change, dimpling is slow, often needs repeated multiple times, more than ten talentes consuming time dimpling success reluctantly, efficiency of construction is extremely low, and the cycle is long, and cost has high input.In addition, mature and stable barefoot laterally drilling whipstock hanger is not had now.
Utility model content:
The technical problems to be solved in the utility model is to provide a kind of barefoot laterally drilling whipstock hanger, the arrangement achieves upper and lower play when effectively preventing whipstock sidetracking from constructing, improve the efficiency of construction of barefoot laterally drilling, simplify construction technology, shorten construction period, reduce cost and drop into.Upper and lower play when overcoming the construction of existing hard formation whipstock sidetracking, the deficiency that efficiency of construction is low, the cycle is long.
Technical solution adopted in the utility model is: a kind of barefoot laterally drilling whipstock hanger, comprises top connection, base tube and ball, top connection lower end inner wall connects base tube, between base tube and top connection, piston is installed, piston by sealing ring respectively with top connection, seal between base tube, piston is connected with top connection by shear pin, base tube has the hole be connected with piston upper end, piston withstands in cone, between piston and cone, inverted-proof ring is installed, cone lower end withstands on slips, slips is arranged on slip spider, slips external surface is provided with holdfast, slip spider is fixed on base tube by clench nail, base tube lower end connects guide shoe, guide shoe bottom inside wall is designed with the ball seat matched with ball.
The beneficial effects of the utility model are: the utility model establishes the mode of holdfast on slips external surface owing to have employed, thus there is the function of upper and lower play when effectively preventing whipstock sidetracking from constructing, improve the efficiency of construction of barefoot laterally drilling, simplify construction technology, shorten construction period, reduce cost and drop into.
Accompanying drawing illustrates:
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention:
As shown in Figure 1, a kind of barefoot laterally drilling whipstock hanger, comprises top connection 1, base tube 2 and ball 3, top connection 1 lower end inner wall connects base tube 2, piston 5 is installed between base tube 2 and top connection 1, piston 5 by sealing ring 4 respectively with top connection 1, seal between base tube 2, piston 5 is connected with top connection 1 by shear pin 6, base tube 2 has the hole be connected with piston 5 upper end, piston 5 lower end withstands in cone 8, inverted-proof ring 7 is installed between piston 5 and cone 8, cone 8 lower end withstands on slips 9, slips 9 is arranged on slip spider 11, slips 9 external surface is provided with holdfast 10, slip spider 11 is fixed on base tube 2 by clench nail 12, base tube 2 lower end connects guide shoe 13, guide shoe 13 bottom inside wall is designed with the ball seat matched with ball 3.
During use, top connection 1 connects whipstock and goes into the well to assigned address, and pitching 3 builds the pressure, and shear pin 6 is cut off, and piston 5 pushes cone 8 motion and sets slips 9, and the holdfast 10 on slips 9 penetrates stratum deeply.After slips 9 sets completely, pressure release top tubing string is given up, under enter milling cone carry out sidetracking construction.Outstanding feature of the present utility model is that slips 9 is long-pending large with formation-engaging surfaces, can provide powerful frictional force; Holdfast 10 penetrates stratum deeply, upper and lower play when can effectively prevent whipstock sidetracking from constructing.Therefore this hanger has outstanding holdfast effect, can meet the requirement of barefoot laterally drilling load impacting.
Be understandable that, above about specific descriptions of the present utility model, the technical scheme described by the utility model embodiment is only not limited to for illustration of the utility model, those of ordinary skill in the art is to be understood that, still can modify to the utility model or equivalent replacement, to reach identical technique effect; Needs are used, all within protection domain of the present utility model as long as meet.
Claims (1)
1. a barefoot laterally drilling whipstock hanger, comprises top connection (1), base tube (2) and ball (3), it is characterized in that: top connection (1) lower end inner wall connects base tube (2), piston (5) is installed between base tube (2) and top connection (1), piston (5) by sealing ring (4) respectively with top connection (1), seal between base tube (2), piston (5) is connected with top connection (1) by shear pin (6), base tube (2) has the hole be connected with piston (5) upper end, piston (5) lower end withstands in cone (8), inverted-proof ring (7) is installed between piston (5) and cone (8), cone (8) lower end withstands on slips (9), slips (9) is arranged on slip spider (11), slips (9) external surface is provided with holdfast (10), slip spider (11) is fixed on base tube (2) by clench nail (12), base tube (2) lower end connects guide shoe (13), guide shoe (13) bottom inside wall is designed with the ball seat matched with ball (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420500223.XU CN204082062U (en) | 2014-09-02 | 2014-09-02 | A kind of barefoot laterally drilling whipstock hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420500223.XU CN204082062U (en) | 2014-09-02 | 2014-09-02 | A kind of barefoot laterally drilling whipstock hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204082062U true CN204082062U (en) | 2015-01-07 |
Family
ID=52174793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420500223.XU Expired - Fee Related CN204082062U (en) | 2014-09-02 | 2014-09-02 | A kind of barefoot laterally drilling whipstock hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204082062U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397419A (en) * | 2019-08-12 | 2019-11-01 | 西华大学 | A kind of air drilling barefoot laterally drilling set packer |
| CN110410026A (en) * | 2019-08-12 | 2019-11-05 | 西华大学 | A kind of air drilling naked eye windowing wedge deflection tool hanging tool |
-
2014
- 2014-09-02 CN CN201420500223.XU patent/CN204082062U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397419A (en) * | 2019-08-12 | 2019-11-01 | 西华大学 | A kind of air drilling barefoot laterally drilling set packer |
| CN110410026A (en) * | 2019-08-12 | 2019-11-05 | 西华大学 | A kind of air drilling naked eye windowing wedge deflection tool hanging tool |
| CN110397419B (en) * | 2019-08-12 | 2021-07-13 | 西华大学 | Open hole sidetracking setting device for air drilling |
| CN110410026B (en) * | 2019-08-12 | 2021-07-13 | 西华大学 | Open hole window-opening slope guide suspension tool for air drilling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20150902 |
|
| EXPY | Termination of patent right or utility model |