CN202081886U - Pressure measuring device for wireless MWD (measurement while drilling) device - Google Patents
Pressure measuring device for wireless MWD (measurement while drilling) device Download PDFInfo
- Publication number
- CN202081886U CN202081886U CN2011201544230U CN201120154423U CN202081886U CN 202081886 U CN202081886 U CN 202081886U CN 2011201544230 U CN2011201544230 U CN 2011201544230U CN 201120154423 U CN201120154423 U CN 201120154423U CN 202081886 U CN202081886 U CN 202081886U
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- pressure sensor
- pressure
- cable
- drilling instrument
- instrument device
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Abstract
The utility model relates to the filed of petroleum drilling measurement, particularly to a pressure measuring device for a wireless MWD (measurement while drilling) device, which includes a stand pipe, a welded threaded sleeve, a pressure sensor, a connecting sleeve pipe and an output cable, wherein the welded threading sleeve is welded on the stand pipe and communicated with the inner cavity of the stand pipe; one end of the pressure sensor is fixedly connected with the welded threaded sleeve; the other end of the pressure sensor is fixedly connected with the connecting sleeve pipe; a fixing bracket is arranged in the connecting sleeve pipe; an interface circuit is installed on the fixing bracket; and a pressure signal is transferred to external data collecting equipment through the output cable via the interface circuit. The pressure measuring device is connected with the stand pipe conveniently and fast, and can be dismantled easily; a lengthened cable can be conveniently connected through a connecting piece, so that the long distance transmission of the pressure signal can be met; and through employing the sputtering thin film pressure sensor, the pressure measuring device is reliable in use and stable in performance.
Description
Technical field
The utility model relates to the oil drilling fields of measurement, is specifically related to a kind of wireless drilling instrument device for pressure measurement.
Background technology
The wireless drilling instrument is the device that petroleum industry is used to measure drilling parameter, and the mud pressure measurement is one of its major parameter.The wireless drilling instrument utilizes mud pulse generator to make downhole data grow the wireless transmission of distance by the mud in the drilling tool hydrophthalmia in the mode of pressure pulse, pressure sensor is by experiencing mud pressure variations in the standpipe on the ground, become the signal of telecommunication to be transferred to remote data processor this pressure change transitions, be transferred to the exclusive data processing instrument again, after decoding, convert concrete digital information to, be presented on the PC by software.
Also come with some shortcomings at this occasion pressure sensor commonly used at present, the one, the sensing element that pressure sensor adopts is a foil gauge, and foil gauge is bonded on the sensor base, comes off easily when experiencing mud pressure, and working life is short; The 2nd, the outer cable line length of pressure sensor and plug reaches 20 meters, and is extremely inconvenient during installation, also occurs reversing the damage phenomenon easily at the pressure sensor root, and its structure also is not easy to dismounting at any time.
The utility model content
The pressure sensor dismounting at the scene that the utility model is used always at present wireless drilling instrument, the deficiency that signal connects and application life, the aspect existed provide a kind of dismounting and convenient wireless drilling instrument device for pressure measurement of carrying signal than long distance be convenient to.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of wireless drilling instrument device for pressure measurement, comprise standpipe, the welding swivel nut, pressure sensor, branch sleeve and output cable, described welding swivel nut be welded on the described standpipe and with the standpipe intracavity inter-connection, described pressure sensor one end is fixedlyed connected with described welding swivel nut, the other end is fixedlyed connected with described branch sleeve, in described branch sleeve, be provided with fixed mount, interface circuit is installed on fixed mount, and pressure signal is transported to outside data acquisition equipment by interface circuit and by cable.Described interface circuit is used to amplify pressure signal is complementary its data acquisition equipment with the outside.
The supporting locking nut and the connector that is used to be connected jumper that cable protective sleeve, attached cable protective sleeve are arranged of described cable.Described pressure sensor is a sputtered thin film pressure transducer.
Described sputtered thin film pressure transducer adopts thin film technique manufacturing in modern age to form, utilize ion beam sputtering technology deposition film strain resistor on elastic body, replace the barbola work in the common metal sensor, eliminated the creep that glue-line causes, defective such as aging.Product has precision height, stable performance, temperature and floats little, reliability advantages of higher.
The housing of described pressure sensor is a stainless steel.
Described output cable comprises cable and the jumper that is connected with cable.
The beneficial effects of the utility model are: owing to adopt the welding swivel nut to make convenient and fast connection, the easy disassembling of pressure sensor and standpipe; Owing to adopt cable protective sleeve in the branch sleeve outlet, and shortened pressure sensor cable going along with, avoided occurring reversing the generation that damages phenomenon easily at the pressure sensor root; Owing to, avoiding having satisfied the long Distance Transmission demand of pressure signal again because of when directly the belt length cable brings inconvenience by the convenient jumper that connects of connector; Because it is reliable to use sputtered thin film pressure transducer that its assembly is used, stable performance.
Further, on described welding swivel nut, also be furnished with plug screw, can be when not needing the wireless drilling instrument, remove pressure sensor and seal detection mouth on the standpipe with plug screw.
Further, also is furnished with " O " RunddichtringO at the two ends of described pressure sensor.It can guarantee the abundant sealing of pressure sensor.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 passes through welding swivel nut and standpipe connection diagram for the utility model;
Fig. 3 is that the plug screw during the working pressure measurement mechanism does not use schematic diagram.
In Fig. 1-Fig. 3,1, standpipe, 2, the welding swivel nut, 3, pressure sensor, 4, branch sleeve; 5, fixed mount, 6, cable protective sleeve, 7, connector, 8, " O " RunddichtringO, 9, interface circuit; 10, locking nut, 11, cable, 12, jumper, 13, plug screw.
The specific embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used to explain the utility model, is not to be used to limit scope of the present utility model.
To shown in Figure 3, a kind of wireless drilling instrument device for pressure measurement comprises standpipe 1, welding swivel nut 2, pressure sensor 3, branch sleeve 4 and output cable as Fig. 1, and described output cable comprises cable 11 and the jumper 12 that is connected with cable.Welding swivel nut 2 be welded on the standpipe 1 and with standpipe 1 intracavity inter-connection, described pressure sensor 3 one ends are fixedlyed connected with described welding swivel nut 2, the other end is fixedlyed connected with described branch sleeve 4, two ends at pressure sensor 3 also are furnished with " O " RunddichtringO 8, to guarantee the abundant sealing of pressure sensor 3.Be provided with fixed mount 5 in described branch sleeve 4, interface circuit 9 is installed on fixed mount 5, pressure signal is transported to outside data acquisition equipment by interface circuit 9 by cable 11, jumper 12.
The described cable 11 supporting locking nuts 10 and the connector 7 that is used to be connected jumper 12 that cable protective sleeve 6, attached cable protective sleeve are arranged.Described pressure sensor 3 is sputtered thin film pressure transducers.
The housing of described pressure sensor 3 is stainless steels.
On described welding swivel nut 2, also be furnished with plug screw 13, can be when not needing the wireless drilling instrument, remove pressure sensor and seal detection mouth on the standpipe with plug screw 13.
Two ends at described pressure sensor 3 also are furnished with " O " RunddichtringO 8.It can guarantee the abundant sealing of pressure sensor 3.
Wireless drilling instrument of the present utility model also comprises jumper 12 with device for pressure measurement.Can make things convenient for the signal long-distance transmissions.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. wireless drilling instrument device for pressure measurement, comprise standpipe (1), welding swivel nut (2), pressure sensor (3), branch sleeve (4) and output cable, it is characterized in that: described welding swivel nut (2) be welded on that described standpipe (1) is gone up and with standpipe (1) intracavity inter-connection, described pressure sensor (3) one ends are fixedlyed connected with described welding swivel nut (2), the other end is fixedlyed connected with described branch sleeve (4), in described branch sleeve (4), be provided with fixed mount (5), interface circuit (9) is installed on fixed mount (5), and pressure signal is transported to outside data acquisition equipment by interface circuit (9) by output cable.
2. wireless drilling instrument device for pressure measurement according to claim 1 is characterized in that: the supporting locking nut (10) and the connector that is used to be connected jumper (12) (7) that cable protective sleeve (6), attached cable protective sleeve (6) are arranged of described cable (11).
3. wireless drilling instrument device for pressure measurement according to claim 1 is characterized in that: also be furnished with " O " RunddichtringO (8) at the two ends of described pressure sensor (3).
4. according to claim 1,2 or 3 described wireless drilling instrument device for pressure measurement, it is characterized in that: described pressure sensor (3) is a sputtered thin film pressure transducer.
5. according to claim 1,2 or 3 described wireless drilling instrument device for pressure measurement, it is characterized in that: described output cable comprises cable (11) and the jumper (12) that is connected with cable (11).
6. according to claim 1,2 or 3 described wireless drilling instrument device for pressure measurement, it is characterized in that: the housing of described pressure sensor (3) is a stainless steel.
7. according to claim 1,2 or 3 each described wireless drilling instrument device for pressure measurement, it is characterized in that: on described welding swivel nut (2), also be furnished with plug screw (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201544230U CN202081886U (en) | 2011-05-16 | 2011-05-16 | Pressure measuring device for wireless MWD (measurement while drilling) device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201544230U CN202081886U (en) | 2011-05-16 | 2011-05-16 | Pressure measuring device for wireless MWD (measurement while drilling) device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202081886U true CN202081886U (en) | 2011-12-21 |
Family
ID=45342522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201544230U Expired - Lifetime CN202081886U (en) | 2011-05-16 | 2011-05-16 | Pressure measuring device for wireless MWD (measurement while drilling) device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202081886U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522922A (en) * | 2016-11-23 | 2017-03-22 | 中国石油集团长城钻探工程有限公司 | Measurement while drilling tool for coiled tubing drilling |
| CN107503741A (en) * | 2017-09-11 | 2017-12-22 | 中国矿业大学 | It is a kind of for coal mine gob temperature sensing with boring thermometric drilling tool |
-
2011
- 2011-05-16 CN CN2011201544230U patent/CN202081886U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522922A (en) * | 2016-11-23 | 2017-03-22 | 中国石油集团长城钻探工程有限公司 | Measurement while drilling tool for coiled tubing drilling |
| CN106522922B (en) * | 2016-11-23 | 2019-06-25 | 中国石油集团长城钻探工程有限公司 | A kind of continuous pipe drilling well measurement while drilling tool |
| CN107503741A (en) * | 2017-09-11 | 2017-12-22 | 中国矿业大学 | It is a kind of for coal mine gob temperature sensing with boring thermometric drilling tool |
| CN107503741B (en) * | 2017-09-11 | 2023-08-15 | 中国矿业大学 | While-drilling measurement Wen Zuanju for coal mine underground goaf temperature detection |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111221 |