CN203321506U - Wireless MWD (Measurement While Drilling) apparatus deploying and retracting device - Google Patents
Wireless MWD (Measurement While Drilling) apparatus deploying and retracting device Download PDFInfo
- Publication number
- CN203321506U CN203321506U CN2013203574600U CN201320357460U CN203321506U CN 203321506 U CN203321506 U CN 203321506U CN 2013203574600 U CN2013203574600 U CN 2013203574600U CN 201320357460 U CN201320357460 U CN 201320357460U CN 203321506 U CN203321506 U CN 203321506U
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- drilling
- spring
- joint
- nut
- sleeve pipe
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Abstract
The utility model relates to the technical field of petroleum well logging, particularly to a wireless MWD (Measurement While Drilling) apparatus deploying and retracting device, wherein an inner rod is connected to the inner side of a nut; a sleeve is connected to the outer side of the nut; the outer side of the inner rod is sleeved with a joint; a grabber is connected to the right end of the inner rod; a spring is mounted on the inner rod in a sleeving way; the left end of the spring is propped against the joint; the right end of the spring is propped against the grabber; the grabber is arranged in a casing pipe; the left end of the casing pipe is connected onto the joint; the opening in the right end of the casing pipe is designed into a cone, and the diameter of the opening end is less than the drift diameter of the interior of the casing pipe. The wireless MWD (Measurement While Drilling) apparatus deploying and retracting device, disclosed by the utility model, reduces corrosion and scour of the wireless MWD apparatus during the construction, prevents the malfunction that the apparatus can not work normally caused by disconnection of a lateral pin, and overcomes the defects that the existing wireless MWD apparatus can rapidly abrade components around the lateral pin and the apparatus can not work normally when the lateral pin is disconnected under a well.
Description
Technical field:
The utility model relates to a kind of petroleum well logging technology field, particularly a kind of wireless measuring instrument while drilling draw off gear.
Background technology:
At present, directional well and horizontal well have become the important channel of Efficient Development oil gas field.Wireless measuring instrument while drilling is a kind of advanced well track Real-Time Monitoring instrument generally adopted in current directional well and horizontal well drilling industry.Existing wireless measuring instrument while drilling instrument string is to realize by the lateral pin of instrument string afterbody when being lowered to drilling tool and tripping out, but the drawback of lateral pin is easily at the lateral pin place, to form new eddy current, and parts around Fast Wearing, easily cause instrument can't realize normal folding and unfolding.Even when lateral pin disconnects in down-hole, cause instrument to work, increase drilling period, increase cost of drilling engineering.
The utility model content:
The technical problems to be solved in the utility model is to provide a kind of wireless measuring instrument while drilling draw off gear, and this device has been realized reducing the corrosion of wireless measuring instrument while drilling in construction and washed away, and prevents from disconnecting because of lateral pin the fault that causes the instrument cisco unity malfunction.Easily parts around lateral pin place Fast Wearing of existing wireless measuring instrument while drilling have been overcome, if lateral pin disconnects the deficiency that causes instrument to work in down-hole.
Technical solution adopted in the utility model is: a kind of wireless measuring instrument while drilling draw off gear comprises sleeve pipe, sleeve, nut and interior bar; Bar in the inboard connection of nut, nut outside branch sleeve, interior bar outside cover joint, interior bar right-hand member connects grabs, and on interior bar, is set with spring, and the spring left end withstands on joint, the spring right-hand member withstands on grabs, grab and be placed in sleeve pipe, the sleeve pipe left end is connected on joint, and sleeve pipe right-hand member exit is designed to taper makes port of export diameter be less than the inside pipe casing latus rectum.
The beneficial effects of the utility model are: the utility model is owing to having adopted spring and having grabbed the mode of removing lateral pin, thereby have and reduce the function that the corrosion of wireless measuring instrument while drilling in construction washed away, prevent from disconnecting because of lateral pin the fault that causes the instrument cisco unity malfunction.
The accompanying drawing explanation:
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.
The specific embodiment:
As shown in Figure 1, a kind of wireless measuring instrument while drilling draw off gear, comprise sleeve pipe 1, sleeve 2, nut 3 and interior bar 4; Bar 4 in the inboard connection of nut 3, nut 3 outside branch sleeves 2, interior bar 4 outside cover joints 6, interior bar 4 right-hand members connect grabs 7, on interior bar 4, is set with spring 5, and spring 5 left ends withstand on joint 6, spring 5 right-hand members withstand on grabs on 7, grab 7 and be placed in sleeve pipe 1, sleeve pipe 1 left end is connected on joint 6, and sleeve pipe 1 right-hand member exit is designed to taper makes port of export diameter be less than the inner latus rectum of sleeve pipe 1.
Be understandable that, above about specific descriptions of the present utility model, only for being described, the utility model not is limited to the described technical scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can modify or be equal to replacement the utility model, to reach identical technique effect; Use needs as long as meet, all within protection domain of the present utility model.
Claims (1)
1. a wireless measuring instrument while drilling draw off gear, comprise sleeve pipe (1), sleeve (2), nut (3) and interior bar (4); It is characterized in that: bar (4) in the inboard connection of nut (3), nut (3) outside branch sleeve (2), interior bar (4) outside cover joint (6), interior bar (4) right-hand member connects grabs (7), be set with spring (5) on interior bar (4), spring (5) left end withstands on joint (6), spring (5) right-hand member withstands on grabs on (7), grabbing (7) is placed in sleeve pipe (1), it is upper that sleeve pipe (1) left end is connected to joint (6), and sleeve pipe (1) right-hand member exit is designed to taper makes port of export diameter be less than the inner latus rectum of sleeve pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203574600U CN203321506U (en) | 2013-06-18 | 2013-06-18 | Wireless MWD (Measurement While Drilling) apparatus deploying and retracting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203574600U CN203321506U (en) | 2013-06-18 | 2013-06-18 | Wireless MWD (Measurement While Drilling) apparatus deploying and retracting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203321506U true CN203321506U (en) | 2013-12-04 |
Family
ID=49660869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203574600U Expired - Fee Related CN203321506U (en) | 2013-06-18 | 2013-06-18 | Wireless MWD (Measurement While Drilling) apparatus deploying and retracting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203321506U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594050A (en) * | 2020-04-26 | 2020-08-28 | 西安石油大学 | Casing while drilling system and method |
-
2013
- 2013-06-18 CN CN2013203574600U patent/CN203321506U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594050A (en) * | 2020-04-26 | 2020-08-28 | 西安石油大学 | Casing while drilling system and method |
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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: 20131204 Termination date: 20140618 |
|
| EXPY | Termination of patent right or utility model |