CN202220566U - Wired communication screw - Google Patents
Wired communication screw Download PDFInfo
- Publication number
- CN202220566U CN202220566U CN2011203238329U CN201120323832U CN202220566U CN 202220566 U CN202220566 U CN 202220566U CN 2011203238329 U CN2011203238329 U CN 2011203238329U CN 201120323832 U CN201120323832 U CN 201120323832U CN 202220566 U CN202220566 U CN 202220566U
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- CN
- China
- Prior art keywords
- groove
- screw
- screw rod
- cable
- drill
- 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 - Fee Related
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- Earth Drilling (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a wired communications screw belonging to the field of well drilling tools. According to the technical scheme of the utility model, the tube wall of the lower end portion of a screw body is provided with a groove and the outside of the groove is in a connection operation with a sealing cover plate. The external surface of the screw body is also provided with a groove arranged along the upper part of the above groove. The wired communication screw adopts a special structural design, wherein the rear capping of a measuring instrument is arranged in the groove. After a cable is well arranged in the groove, the groove is filled with a wear-resistant and waterproof glue to be leveled up. Therefore, the measuring instrument, the cable and the screw body are integrated into one piece. A measuring signal is transmitted to an upper signal transmitting device through the cable and then is transmitted to the ground so as to realize the measurement of parameters near a drill bit measured through following the drill. The wired communication screw is used for the near-drill-bit measurement of parameters, such as the well drilling deviation angle, the stratum resistivity, the stratum gamma value and the like. Compared with the wireless transmission mode, the wired transmission mode reduces the attenuation and the interference of signals and has a great significance on drilling safety, geological prediction, oil reservoir judgment and so on.
Description
Technical field
The utility model relates to a kind of wire communication screw rod in the drilling tool field.
Background technology
Under the situation of using screw rod, carry out measurement while drilling in oil, the natural gas drilling process, the detecting location of sensor, can creep into the rock stratum, bottom more and play accurate detection and prevention effect more near the understratum actual conditions the closer to the drill bit survey data.Existing application process is by two kinds: one of which, carry out wireless transmission between sensor and the treatment circuit, and the wireless signal serious interference, just present filtering technique can not guarantee the accuracy of communication data; Its two, put sensor and rectification circuit into same pipe nipple, be connected screw rod top because it is apart from shaft bottom (8-10 rice at least) far away, the actual conditions gap at testing result and drill bit place is bigger, it is slow to judge, poorer to the oil sheet effect.
The utility model content
The utility model is exactly to deficiency of the prior art, provides a kind of tight nearly drill bit to carry out the matching used wire communication screw rod of measurement while drilling.
The utility model is realized through following technical scheme: offer groove on the tube wall of screw rod body bottom, groove is outside to be connected cooperation with seal cover board, offers groove along this external surface of screw rod on groove top.
Such scheme also comprises: said groove comprises the straight-line groove and the ring-shaped groove of connection.
Be connected with seal by screw between groove and the seal cover board.Space in straight-line groove and the ring-shaped groove behind the laying cable is filled with wear-resisting Waterproof glue line.
The utility model owing to adopted special structural design; Alignment measurement instrument rear seal-cover in the groove; The good cable of cloth and filling and leading up in the groove with wear-resisting marine glue, measuring apparatus, cable and screw rod body are become one after, measuring-signal passes to the upper signal transmitter through cable; And then be delivered to ground, realize measuring with boring nearly bit parameter.Be used to carry out drilling well hole deviation, formation resistivity, the isoparametric nearly drill bit measurement of stratum γ value, compare decay and interference that wire transmission has reduced signal with wireless transmission, drilling safety, geologic prediction, oil reservoir judgement etc. are significant.
Description of drawings
The structural representation of a kind of typical application embodiment of Fig. 1 the utility model.
Wherein: 1, surface grooves, 2, the joint cannelure, 3, cable, 4, screw, 5, seal, 6, the screw rod body, 7, seal cover board, 8, drill bit.
The specific embodiment
Below in conjunction with the Figure of description and the specific embodiment, the utility model is further described.
With reference to accompanying drawing 1, a kind of wire communication screw rod, screw rod body 6 outside tube walls are provided with the sealed chamber that groove-like is held measuring apparatus and circuit board, and sealed chamber is provided with seal cover board 7, and sealed chamber is near the screw rod bottom of drill bit 8.The cable 3 that transmits measuring-signal is embedded in the ring-shaped groove 2 of surperficial straight-line groove 1 and screw rod joint end face of screw rod body 6.
Be equipped with space, cable 3 back in ring-shaped groove 2 and the straight-line groove 1 and be filled with wear-resisting marine glue.Be provided with screw 4 and seal 5 between sealed chamber and the seal cover board 7.
Claims (4)
1. wire communication screw rod is characterized in that: offer groove on the tube wall of screw rod body bottom, groove is outside to be connected cooperation with seal cover board, offers groove along this external surface of screw rod on groove top.
2. wire communication screw rod according to claim 1 is characterized in that: said groove comprises the straight-line groove and the ring-shaped groove of connection.
3. wire communication screw rod according to claim 1 and 2 is characterized in that: be connected with seal by screw between groove and the seal cover board.
4. wire communication screw rod according to claim 2 is characterized in that: the space in straight-line groove and the ring-shaped groove behind the laying cable is filled with wear-resisting Waterproof glue line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203238329U CN202220566U (en) | 2011-08-31 | 2011-08-31 | Wired communication screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203238329U CN202220566U (en) | 2011-08-31 | 2011-08-31 | Wired communication screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202220566U true CN202220566U (en) | 2012-05-16 |
Family
ID=46042593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203238329U Expired - Fee Related CN202220566U (en) | 2011-08-31 | 2011-08-31 | Wired communication screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202220566U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953690A (en) * | 2011-08-31 | 2013-03-06 | 中国石油化工股份有限公司 | Wired communication screw rod |
| CN103256037A (en) * | 2013-04-01 | 2013-08-21 | 德州联合石油机械有限公司 | Working parameter measurement device for oil drilling positive displacement motors |
| US10975689B1 (en) | 2019-09-18 | 2021-04-13 | Institute Of Geology And Geophysics, Chinese Academy Of Sciences | Near bit wireless constant current short distance transmission method and device |
-
2011
- 2011-08-31 CN CN2011203238329U patent/CN202220566U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953690A (en) * | 2011-08-31 | 2013-03-06 | 中国石油化工股份有限公司 | Wired communication screw rod |
| CN103256037A (en) * | 2013-04-01 | 2013-08-21 | 德州联合石油机械有限公司 | Working parameter measurement device for oil drilling positive displacement motors |
| US10975689B1 (en) | 2019-09-18 | 2021-04-13 | Institute Of Geology And Geophysics, Chinese Academy Of Sciences | Near bit wireless constant current short distance transmission method and device |
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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: 20120516 Termination date: 20200831 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |