CN202325476U - Novel drilling resistivity shell - Google Patents
Novel drilling resistivity shell Download PDFInfo
- Publication number
- CN202325476U CN202325476U CN2011204930711U CN201120493071U CN202325476U CN 202325476 U CN202325476 U CN 202325476U CN 2011204930711 U CN2011204930711 U CN 2011204930711U CN 201120493071 U CN201120493071 U CN 201120493071U CN 202325476 U CN202325476 U CN 202325476U
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- Prior art keywords
- antenna
- shell
- resistivity
- housing
- antennas
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Abstract
The utility model relates to a novel drilling resistivity shell, which mainly solves the problems existing in the prior art that when being fixed on an outer main body of a resistivity short joint through glue, measuring antennas, skeletons and ribs are easy to loosen or are eroded by slurry to cause the invalid whole shell. The novel drilling resistivity shell is characterized in that 5 pairs of antenna slots (1) are distributed on the outer surface of the shell (4) in the axial direction at intervals; a transmitting antenna and a receiving antenna are respectively installed in each pair of antenna slots (1); 27 strip-shaped gaps (2) are radially distributed in the radial direction of each pair of antenna slots and are parallel to the shell (4) in the radial direction; an annular groove is formed in the middle part of each strip-shaped gap (2); and an annular antenna (3) passes through the annular grooves. The novel drilling resistivity shell has the benefits that an annular multi-gap type antenna structure is adopted, the contact area of the antennas with the slurry is reduced, the quantity of the antenna skeletons, the antenna ribs and other accessories are reduced, the reliability and the sealing performance of the antennas are improved, and the service life of the antennas is prolonged.
Description
Technical field
The utility model relates to the housing of a kind of measuring apparatus in the oil drilling technical field, and is particularly a kind of novel with boring the resistivity housing.
Background technology
In the oil drilling technical field, the wireless drilling measuring technique is a kind of advanced measuring apparatus that generally adopts at present.With boring the resistivity housing is a key component in the measurement while-drilling instrument.Adopt the loop configuration design owing to measure antenna, and antenna, skeleton and rib be fixed on the resistivity pipe nipple outer body through glue, antenna and mud contact surface are bigger, thereby are prone to become flexible or by slurry erosion.Along with the instrument increase of the service time in the down-hole, because the erosion of underground vibrating and high-pressure slurry, thereby the glue of fixed antenna can become flexible gradually and causes the antenna damage.
Summary of the invention
The utility model technical problem to be solved is to overcome the measurement antenna, skeleton and the rib that exist in the background technology to be fixed on through glue and to be prone to problem loosening or that caused whole housing to lose efficacy by slurry erosion on the resistivity pipe nipple outer body; And provide a kind of novel with boring the resistivity housing; This is novel to adopt annular many clearance types antenna structure with boring the resistivity housing; Dwindled the contact area of antenna and mud; Reduce associate member quantity such as antenna frame and antenna rib, improved the reliability and the sealing of antenna, prolonged the application life of antenna.
The utility model solves its problem and can reach through following technical scheme: this is novel to comprise housing with boring the resistivity housing, and described housing outer surface axially spaced-apart is distributed with 5 pairs of sky wire casings, in every pair of sky wire casing transmitting antenna and reception antenna is installed respectively; Radial equipartition along every pair of sky wire casing has 27 bar shaped slits, slit and housing axially parallel; Article 27, the middle part in bar shaped slit has cannelure, has a loop aerial to pass in the cannelure.
Be marked with the high strength fluid sealant in the described cannelure that is installed with antenna.
The utility model and above-mentioned background compared with techniques can have following beneficial effect: this is novel with boring the resistivity housing owing to adopting said structure; Adopt annular many clearance types antenna structure; The contact area of antenna and mud is little; Associate member quantity such as antenna frame and antenna rib are few, improved the reliability and the sealing of antenna, prolonged the application life of antenna.Improve the sealing of resistivity body type antenna system; Structure is more reasonable, keeps in repair and safeguards convenient.
Description of drawings:
Accompanying drawing 1 is the structural representation of the utility model.
Among the figure: 1-days wire casings, 2-slit, 3-antenna, 4-housing.
The specific embodiment:
To be described further the utility model below in conjunction with accompanying drawing:
As shown in Figure 1, this is novel to comprise housing 4 with boring the resistivity housing, and described housing 4 external surface axially spaced-aparts are distributed with 5 pairs of sky wire casings 1, in every pair of sky wire casing 1 transmitting antenna and reception antenna are installed respectively; Radial equipartition along every pair of sky wire casing 1 has 27 bar shaped slits 2, slit 2 and housing 4 axially parallels; Article 27, the middle part in bar shaped slit 2 has cannelure, has antenna 3 to pass in the cannelure, is marked with fluid sealant in the described cannelure that is installed with antenna 3; Described antenna 3 is respectively nearly reception antenna, reception antenna far away, nearly transmitting antenna, middle transmitting antenna, transmitting antenna far away from top to bottom.Nearly transmitting antenna is used to measure shallow resistance, and middle transmitting antenna is used for measuring dark resistance, and transmitting antenna far away is used to measure dark resistance.The emission plug-in unit is installed in the axial hole of housing and is received plug-in unit; Components and parts such as radiating circuit plate, circuit board for receiving, power supply circuit board and main control board are installed on the plug-in unit; And realize linking between internal circuit and the housing match circuit, and then the measurement of realization electromagnetic resistivity through H cable.
Claims (2)
1. one kind novelly comprises housing (4) with boring the resistivity housing, and it is characterized in that: described housing (4) external surface axially spaced-apart is distributed with 5 pairs of sky wire casings (1), in every pair of sky wire casing (1) transmitting antenna and reception antenna is installed respectively; Radial equipartition along every pair of sky wire casing (1) has 27 bar shaped slits (2), slit (2) and housing (4) axially parallel; Article 27, the middle part of bar shaped slit (2) has cannelure, has a loop aerial (3) to pass in the cannelure.
2. according to claim 1 a kind of novel with boring the resistivity housing, it is characterized in that: be marked with high-intensity fluid sealant in the described cannelure that is installed with antenna (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204930711U CN202325476U (en) | 2011-12-01 | 2011-12-01 | Novel drilling resistivity shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204930711U CN202325476U (en) | 2011-12-01 | 2011-12-01 | Novel drilling resistivity shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202325476U true CN202325476U (en) | 2012-07-11 |
Family
ID=46437458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204930711U Expired - Fee Related CN202325476U (en) | 2011-12-01 | 2011-12-01 | Novel drilling resistivity shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202325476U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937020A (en) * | 2012-11-27 | 2013-02-20 | 北京华航无线电测量研究所 | Resistivity electronic cabin provided with elastic supporting structure |
| CN102996122A (en) * | 2012-11-27 | 2013-03-27 | 北京华航无线电测量研究所 | Electronic cabin with axial and peripheral adjustable resistivity |
| CN103367866A (en) * | 2013-08-06 | 2013-10-23 | 中国石油集团长城钻探工程有限公司钻井技术服务公司 | Magnetic dipole antenna and device for measuring orientated electrical resistivity of stratum |
| CN107313771A (en) * | 2017-07-07 | 2017-11-03 | 贝兹维仪器(苏州)有限公司 | A kind of nearly bit measuring instrument with resistivity measurement function |
| CN112164856A (en) * | 2020-08-13 | 2021-01-01 | 中国石油天然气集团有限公司 | Azimuth antenna skeleton structure and three-degree-of-freedom frame type winding tool |
-
2011
- 2011-12-01 CN CN2011204930711U patent/CN202325476U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937020A (en) * | 2012-11-27 | 2013-02-20 | 北京华航无线电测量研究所 | Resistivity electronic cabin provided with elastic supporting structure |
| CN102996122A (en) * | 2012-11-27 | 2013-03-27 | 北京华航无线电测量研究所 | Electronic cabin with axial and peripheral adjustable resistivity |
| CN102937020B (en) * | 2012-11-27 | 2015-05-06 | 北京华航无线电测量研究所 | Resistivity electronic cabin provided with elastic supporting structure |
| CN102996122B (en) * | 2012-11-27 | 2015-12-23 | 北京华航无线电测量研究所 | One has axially circumferential adjustable resistor rate electronic compartment |
| CN103367866A (en) * | 2013-08-06 | 2013-10-23 | 中国石油集团长城钻探工程有限公司钻井技术服务公司 | Magnetic dipole antenna and device for measuring orientated electrical resistivity of stratum |
| CN103367866B (en) * | 2013-08-06 | 2016-04-27 | 中国石油集团长城钻探工程有限公司 | Magnetic-dipole antenna and the device for the directed resistivity measurement in stratum |
| CN107313771A (en) * | 2017-07-07 | 2017-11-03 | 贝兹维仪器(苏州)有限公司 | A kind of nearly bit measuring instrument with resistivity measurement function |
| CN107313771B (en) * | 2017-07-07 | 2023-09-26 | 贝兹维仪器(苏州)有限公司 | Near-bit measuring instrument with resistivity measuring function |
| CN112164856A (en) * | 2020-08-13 | 2021-01-01 | 中国石油天然气集团有限公司 | Azimuth antenna skeleton structure and three-degree-of-freedom frame type winding tool |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20201201 |