CN208918498U - A kind of fishing device for the drill collar that falls off in large diameter drilling - Google Patents
A kind of fishing device for the drill collar that falls off in large diameter drilling Download PDFInfo
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- CN208918498U CN208918498U CN201821496178.XU CN201821496178U CN208918498U CN 208918498 U CN208918498 U CN 208918498U CN 201821496178 U CN201821496178 U CN 201821496178U CN 208918498 U CN208918498 U CN 208918498U
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- sleeve
- drill collar
- falls
- cannulated
- fishing device
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Abstract
The utility model provides a kind of fishing device for the drill collar that falls off in large diameter drilling, including cannulated sleeve, conical sleeve and righting sleeve；The bottom end of cannulated sleeve is fixedly connected with the top of conical sleeve, and the bottom end of conical sleeve is fixedly connected with the top of righting sleeve；Cannulated sleeve, conical sleeve and righting sleeve coaxial arrangement；Cannulated sleeve top is equipped with screw thread, and the die nipple being arranged straight down is equipped with inside cannulated sleeve, and die nipple and cannulated sleeve are coaxially disposed.A kind of fishing device for the drill collar that falls off in large diameter drilling of the utility model, pass through coaxial sequentially connected cannulated sleeve, conical sleeve and righting sleeve, cooperate die nipple, rectangular aperture and semicircular opening, it may be implemented concurrently to give birth to inclined drilling tool and quickly salvaged to being broken in big diameter borehole, have the characteristics that operate convenient and reliable performance.
Description
Technical field
The utility model belongs to geological drilling field, more particularly, to a kind of beating for the drill collar that falls off in large diameter drilling
Fish out device.
Background technique
Heavy caliber drilling well generally refers to open-hole aperture in 500mm or more drilling well.Heavy caliber drilling well is opened in subterranean resource at present
Hair, basic engineering construction and processing, underground industrial plants build etc. fields using more and more extensive.Because of large diameter drilling drilling tool
It is big from the open-hole aperture that great, torque is big, is formed, in drilling process once because drilling tool is off quality, drilling tool is tired, revolving speed
Bit pressure controls the reasons such as unreasonable, is very easy to that the drilling tools fracture accidents such as drilling rod, drill collar occur, while again because aperture is big, drilling tool
It is easy inclination and is difficult to be tracked salvaging.
Drilling tool fracture accident is higher in drilling field occurrence frequency, for the processing scheme relative abundance of such accident, at
Function case is also very much, but the overwhelming majority is the processing for the small-bore probing drilling tool fracture accident of open-hole φ 500mm or less, generally
Be not related to drilling tool in open-hole run-off the straight and be difficult to be tracked salvaging such case.
Summary of the invention
In view of this, the utility model is directed to a kind of fishing device for the drill collar that falls off in large diameter drilling, lead to
Coaxial sequentially connected cannulated sleeve, conical sleeve and righting sleeve are crossed, cooperation die nipple, rectangular aperture and semicircular opening can
It concurrently gives birth to inclined drilling tool to realize and is quickly salvaged to being broken in big diameter borehole, there is the convenient and reliable performance of operation
The characteristics of.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of fishing device for the drill collar that falls off in large diameter drilling, including cannulated sleeve, conical sleeve and supporting positive cover
Cylinder；The bottom end of cannulated sleeve is fixedly connected with the top of conical sleeve, and the bottom end of conical sleeve and the top of righting sleeve are fixed
Connection；Cannulated sleeve, conical sleeve and righting sleeve coaxial arrangement；Cannulated sleeve top is equipped with screw thread, sets inside cannulated sleeve
There is the die nipple being arranged straight down, die nipple and cannulated sleeve are coaxially disposed；Righting sleeve side wall is equipped with the square for extending through bottom end
The outer of shape opening, rectangular aperture vertical direction is equipped with semicircular opening.
Further, die nipple length is less than the length of cannulated sleeve.
Further, rectangular aperture width is 400mm, and rectangular aperture height is 2000mm.
Further, the diameter of semicircular opening is 300mm.
Further, the vertical range of the semicircular opening center of circle to righting sleeve bottom end is 350mm.
Further, righting sleeve diameter is 920mm.
Compared with the existing technology, a kind of fishing device for the drill collar that falls off in large diameter drilling of the utility model, has
Following advantage:
A kind of fishing device for the drill collar that falls off in large diameter drilling of the utility model passes through coaxial sequentially connected sky
Heart sleeve, conical sleeve and righting sleeve, cooperation die nipple, rectangular aperture and semicircular opening, may be implemented to big diameter borehole
Middle fracture is concurrently given birth to inclined drilling tool and is quickly salvaged, and has the characteristics that operate convenient and reliable performance.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.
In the accompanying drawings:
Fig. 1 is a kind of fishing device structural representation for the drill collar that falls off in large diameter drilling of the utility model embodiment
Figure.
Description of symbols:
1- screw thread；2- die nipple；3- cannulated sleeve；4- conical sleeve；5- righting sleeve；6- rectangular aperture；7- semicircle is opened
Mouthful.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more of the features.It is in the description of the present invention, unless another
It is described, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State the concrete meaning of term in the present invention.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, a kind of fishing device for the drill collar that falls off in large diameter drilling, including cannulated sleeve 3, taper sheath
Cylinder 4 and righting sleeve 5；The bottom end of cannulated sleeve 3 is fixedly connected with the top of conical sleeve 4, the bottom end of conical sleeve 4 and righting
The top of sleeve 5 is fixedly connected；Cannulated sleeve 3, conical sleeve 4 and righting sleeve 5 are coaxially disposed；3 top of cannulated sleeve is equipped with
Screw thread 1, the die nipple 2 being arranged straight down is equipped with inside cannulated sleeve 3, and die nipple 2 and cannulated sleeve 3 are coaxially disposed；Righting sleeve 5
Side wall is equipped with the rectangular aperture 6 for extending through bottom end, and the outer of 6 vertical direction of rectangular aperture is equipped with semicircular opening 7.
Screw thread 1 is 210mm sleeve, the diameter of cannulated sleeve 3 and salvaged brill for connecting 127mm drilling rod, cannulated sleeve 3
Quickly diameter matches.
As shown in Figure 1,2 length of die nipple is less than the length of cannulated sleeve 3.
As shown in Figure 1,6 width of rectangular aperture is 400mm, 6 height of rectangular aperture is 2000mm.
As shown in Figure 1, the diameter of semicircular opening 7 is 300mm.
As shown in Figure 1, the vertical range of 7 center of circle of semicircular opening to 5 bottom end of righting sleeve is 350mm.
As shown in Figure 1,5 diameter of righting sleeve is 920mm.
In the practical application of the utility model, carry out drill collar salvaging the step of:
Step 1: the slow tripping in of speed is reduced after near this fishing device of tripping in fracture depth, if fishing device is met
It is suitable with fracture drill collar top depth to hinder depth, illustrates that drill collar is likely to lean against the borehole wall, righting sleeve 5 completely rides on one side
On drill collar, this fishing device, slow tripping in again after fine rotation certain angle are at this time promoted by a small margin, until salvaging dress
After depth of setting is set significantly beyond drill collar top depth, illustrate that the drill collar leaned to has been positioned at the rectangular aperture 6 of righting sleeve 5
It is interior, this fishing device is rotated again, is dragged in righting sleeve 5 using semicircular opening 7 by drill collar is broken, during dragging on
Bit bouncing phenomenon is obvious, and bit bouncing phenomenon is substantially reduced after dragging on；
Step 2: continuing slow this fishing device of tripping in after ensuring that fracture drill collar enters righting sleeve 5, utilizing taper sheath
Drill collar is imported into cannulated sleeve 3 by the inner slope of cylinder 4, until being hampered, illustrates that die nipple 2 has entered in drill collar；
Step 3: being repeated several times this fishing device of fine rotation, using 2 thread making of die nipple, brill is slightly above mentioned when bit bouncing is serious
Whether tool, close observation weight total indicator reading become larger；
Step 4: if weight total indicator reading becomes larger, and it is consistent with drilling tool weight is broken to increase weight, illustrate thread making at
Function, this fishing device that pulls out of hole salvage drill collar and drill bit, if pointer does not change, repeat the above steps.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (6)
1. a kind of fishing device for the drill collar that falls off in large diameter drilling, it is characterised in that: including cannulated sleeve (3), taper
Sleeve (4) and righting sleeve (5)；The bottom end of the cannulated sleeve (3) is fixedly connected with the top of the conical sleeve (4), institute
The bottom end for stating conical sleeve (4) is fixedly connected with the top of the righting sleeve (5)；The cannulated sleeve (3), the taper sheath
Cylinder (4) and the righting sleeve (5) coaxial arrangement；Cannulated sleeve (3) top is equipped with screw thread (1), the cannulated sleeve (3)
Inside is equipped with the die nipple (2) being arranged straight down, and the die nipple (2) and the cannulated sleeve (3) are coaxially disposed；The supporting positive cover
Cylinder (5) side wall is equipped with the rectangular aperture (6) for extending through bottom end, and the outer of rectangular aperture (6) vertical direction is equipped with half
Circular open (7).
2. a kind of fishing device for the drill collar that falls off in large diameter drilling according to claim 1, it is characterised in that: institute
State the length that die nipple (2) length is less than the cannulated sleeve (3).
3. a kind of fishing device for the drill collar that falls off in large diameter drilling according to claim 1, it is characterised in that: institute
Stating rectangular aperture (6) width is 400mm, and rectangular aperture (6) height is 2000mm.
4. a kind of fishing device for the drill collar that falls off in large diameter drilling according to claim 3, it is characterised in that: institute
The diameter for stating semicircular opening (7) is 300mm.
5. a kind of fishing device for the drill collar that falls off in large diameter drilling according to claim 4, it is characterised in that: institute
The vertical range for stating semicircular opening (7) center of circle to the righting sleeve (5) bottom end is 350mm.
6. a kind of fishing device for the drill collar that falls off in large diameter drilling according to claim 5, it is characterised in that: institute
Stating righting sleeve (5) diameter is 920mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821496178.XU CN208918498U (en) | 2018-09-13 | 2018-09-13 | A kind of fishing device for the drill collar that falls off in large diameter drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821496178.XU CN208918498U (en) | 2018-09-13 | 2018-09-13 | A kind of fishing device for the drill collar that falls off in large diameter drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208918498U true CN208918498U (en) | 2019-05-31 |
Family
ID=66705465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821496178.XU Active CN208918498U (en) | 2018-09-13 | 2018-09-13 | A kind of fishing device for the drill collar that falls off in large diameter drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208918498U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456667A (en) * | 2020-05-14 | 2020-07-28 | 中勘资源勘探科技股份有限公司 | Be used for colliery ground heavy-calibre drilling tool fishing device |
-
2018
- 2018-09-13 CN CN201821496178.XU patent/CN208918498U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456667A (en) * | 2020-05-14 | 2020-07-28 | 中勘资源勘探科技股份有限公司 | Be used for colliery ground heavy-calibre drilling tool fishing device |
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