CN212079286U - Drill collar type azimuth gamma measuring instrument - Google Patents
Drill collar type azimuth gamma measuring instrument Download PDFInfo
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- CN212079286U CN212079286U CN201922423598.6U CN201922423598U CN212079286U CN 212079286 U CN212079286 U CN 212079286U CN 201922423598 U CN201922423598 U CN 201922423598U CN 212079286 U CN212079286 U CN 212079286U
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- drill collar
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- sensor
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Abstract
The utility model discloses a drill collar formula position gamma measuring instrument mainly by: the device comprises a drill collar (1), a gamma sensor (2), a pulser (4) and a control core assembly (3), wherein the gamma sensor (2) and the control core assembly (3) are both arranged inside the side wall of the drill collar (1), the pulser (4) is arranged in a central hole of the drill collar (1), and the gamma sensor (2) is connected with the control core assembly (3) through a cable; the drill collar type azimuth gamma measuring instrument is arranged inside the side wall of the drill collar, and the gamma sensor is closer to the stratum, so that the measuring precision is improved, and more accurate geological parameters can be obtained; the control core assembly wirelessly transmits the upper gamma value, the lower gamma value and the natural gamma value transmitted by the gamma sensor to the pulser through magnetic coupling, so that the problems of wire passing and sealing which need to be considered during wired transmission are avoided; the gamma measurement direction attenuation of the drill collar is reduced, the reverse shielding effect is good, and the gamma layering effect is good.
Description
Technical Field
The utility model relates to an oil field surveys the field, in particular to drill collar formula position gamma measuring instrument.
Background
In recent years, as development of oilfield surveys is continuously advanced, oil drilling systems develop various forms of azimuth gamma measurement systems for acquiring azimuth gamma parameters.
The existing gamma sensor is arranged in the center of a borehole and is far away from a measured rock stratum, the measured data is inaccurate or the gamma sensor is positioned on the side wall of a drill collar, but the gamma sensor is poor in wire transmission tightness with MWD (measurement while drilling), and leakage can be caused to damage an instrument.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a drill collar formula position gamma measuring instrument has solved the problem of mentioning in the background art.
The utility model discloses a realize like this, a drill collar formula position gamma measuring instrument, this drill collar formula position gamma measuring instrument mainly by: the device comprises a drill collar, a gamma sensor, an pulser and a control core assembly, wherein the gamma sensor and the control core assembly are arranged inside the side wall of the drill collar, the pulser is arranged in a central hole of the drill collar, and the gamma sensor is connected with the control core assembly through a cable.
The utility model discloses a further technical scheme is: and a wireless transmission module is arranged in the control core assembly.
The utility model discloses a further technical scheme is: the wireless transmission module is a magnetic coupling wireless transmission device.
The utility model discloses a further technical scheme is: the wireless transmission module includes: a transmitting coil assembly and a transmitting circuit board assembly electrically connected to each other.
The utility model discloses a further technical scheme is: and a wireless receiving module is arranged in the pulser.
The utility model discloses a further technical scheme is: the wireless receiving module includes: a receiving coil assembly and a receiving circuit board assembly electrically connected to each other.
The utility model has the advantages that: the drill collar type azimuth gamma measuring instrument is arranged inside the side wall of the drill collar, the gamma sensor is closer to the stratum, the measuring precision is improved, and more accurate geological parameters can be obtained; the control core assembly wirelessly transmits the upper gamma value, the lower gamma value and the natural gamma value transmitted by the gamma sensor to the pulser through magnetic coupling, so that the problems of wire passing and sealing which need to be considered during wired transmission are avoided; the gamma measurement direction attenuation of the drill collar is reduced, the reverse shielding effect is good, and the gamma layering effect is good.
Drawings
FIG. 1 is a schematic diagram of an overall structure of a collar-type azimuth gamma measuring instrument according to the present invention;
FIG. 2 is a schematic structural diagram of a wireless transmission module of a collar-type azimuth gamma measuring instrument according to the present invention;
FIG. 3 is a schematic structural diagram of a wireless transmission module of a collar-type azimuth gamma measuring instrument.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
It should be noted that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the efficacy and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
The first embodiment is as follows: fig. 1 shows a collar-type azimuth gamma measuring instrument, which mainly consists of: the device comprises a drill collar 1, a gamma sensor 2, a pulser 4 and a control core assembly 3, wherein the gamma sensor 2 and the control core assembly 3 are both arranged inside the side wall of the drill collar 1, the pulser 4 is arranged in a central hole of the drill collar 1, and the gamma sensor 2 is connected with the control core assembly 3 through a cable; a wireless transmission module is arranged in the control core assembly 3; the wireless transmission module is a magnetic coupling wireless transmission device; the wireless transmission module includes: a transmitting coil assembly 53 and a transmitting circuit board assembly 54 electrically connected to each other; a wireless receiving module is arranged in the pulser 4; the wireless receiving module includes: a receiving coil block 51 and a receiving circuit board block 52 electrically connected to each other; the drill collar type azimuth gamma measuring instrument is arranged inside the side wall of the drill collar, the gamma sensor is closer to the stratum, the measuring precision is improved, and more accurate geological parameters can be obtained; the control core assembly wirelessly transmits the upper gamma value, the lower gamma value and the natural gamma value transmitted by the gamma sensor to the pulser through magnetic coupling, so that the problems of wire passing and sealing which need to be considered during wired transmission are avoided; the gamma measurement direction attenuation of the drill collar is reduced, the reverse shielding effect is good, and the gamma layering effect is good.
The gamma sensor 2 is arranged on the side wall of the drill collar 1, compared with the gamma sensor arranged in an inner hole of the drill collar, the gamma sensor 2 is closer to the stratum, the measurement precision is improved, more accurate geological parameters can be obtained, the gamma value acquired by the gamma sensor 2 is transmitted to the control engine component 3 through a cable, and the control engine component 3 wirelessly transmits the upper gamma value, the lower gamma value and the natural gamma value transmitted by the gamma sensor 2 to the pulser 4 through magnetic coupling; the wireless transmission module is processed by the transmitting circuit board assembly 54 after receiving the gamma value signals collected by the gamma sensor, wirelessly transmits the gamma value signals to the receiving coil assembly 51 through the transmitting coil assembly 53, and transmits the gamma value signals to the pulser or the ground after being processed by the receiving circuit board assembly 52, so that the problems of wire passing and sealing which need to be considered in the process of wire transmission are solved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a drill collar formula position gamma measuring instrument which characterized in that, this drill collar formula position gamma measuring instrument mainly by: the device comprises a drill collar (1), a gamma sensor (2), a pulser (4) and a control core assembly (3), wherein the gamma sensor (2) and the control core assembly (3) are arranged inside a side wall of the drill collar (1), the pulser (4) is arranged in a central hole of the drill collar (1), and the gamma sensor (2) is connected with the control core assembly (3) through a cable.
2. A collar-type orientation gamma measuring instrument according to claim 1, wherein said control engine assembly (3) has a wireless transmission module disposed therein.
3. The collar-type orientation gamma measuring instrument of claim 2, wherein the wireless transmission module is a magnetically coupled wireless transmission device.
4. The collar-type azimuth gamma measuring instrument as claimed in claim 3, wherein said wireless transmission module comprises: a transmitting coil assembly (53) and a transmitting circuit board assembly (54) electrically connected to each other.
5. A collar-type azimuth gamma measuring instrument according to claim 4, wherein a wireless receiving module is arranged in the pulser (4).
6. The collar-type azimuth gamma measuring instrument as claimed in claim 5, wherein said wireless receiving module comprises: a receiving coil assembly (51) and a receiving circuit board assembly (52) electrically connected to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922423598.6U CN212079286U (en) | 2019-12-26 | 2019-12-26 | Drill collar type azimuth gamma measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922423598.6U CN212079286U (en) | 2019-12-26 | 2019-12-26 | Drill collar type azimuth gamma measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212079286U true CN212079286U (en) | 2020-12-04 |
Family
ID=73565509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922423598.6U Active CN212079286U (en) | 2019-12-26 | 2019-12-26 | Drill collar type azimuth gamma measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212079286U (en) |
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2019
- 2019-12-26 CN CN201922423598.6U patent/CN212079286U/en active Active
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