CN214660132U

CN214660132U - Multi-probe type azimuth gamma drill collar

Info

Publication number: CN214660132U
Application number: CN202120629856.0U
Authority: CN
Inventors: 郝汉; 张炜; 肖加奇
Original assignee: Weihai Sea Ice Energy Technology Co ltd
Current assignee: Weihai Sea Ice Energy Technology Co ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-11-09
Anticipated expiration: 2031-03-29

Abstract

Many probe formula position gamma drill collar, including no magnetism body, the resistance to compression urceolus, gamma probe, probe shell and suspension disc, no magnetism body has a cylindric shell structure, set up flutedly on no magnetism body's the lateral wall, detection subassembly and locating component are located no magnetism body recess, locating component includes the ray shielding piece, polyether ether ketone resin, the ray shielding piece is located between independent split type subassembly and the no magnetism body recess, gamma probe has independent split type protection component, independent split type protection component includes end cap and probe shell on the probe, the integrated accelerometer of resistance to compression urceolus, group battery and wire tube, set up 2 centralizers between accelerometer and the group battery. The utility model discloses carry out the fluting to the drill collar post outside and handle, carry out independent split type protection to gamma probe, circuit board cover plate independent design reading mouth, drill collar upper portion carries out the design of general formula, has realized along with boring simplification, the universalization of position gamma logging equipment, has improved instrument measurement accuracy and position imaging nature simultaneously.

Description

Multi-probe type azimuth gamma drill collar

Technical Field

The utility model relates to a logging-while-drilling device in oil gas exploration exploitation drilling construction, concretely relates to many probes formula position gamma drill collar.

Background

In recent years, in the field of logging while drilling in the drilling industry, the azimuth gamma logging while drilling technology is widely applied. The orientation gamma logging while drilling is to detect the natural radioactivity of the stratum by utilizing a plurality of detectors in the process of drilling, the measured data has orientation characteristics, not only can the conventional natural gamma application be realized, but also more importantly, the orientation gamma imaging can be carried out on the stratum by the aid of geological guidance, and the stratum can be better evaluated.

At present, a large-diameter drill collar is mostly adopted for domestic drilling, a drill collar body needs to be grooved during directional gamma-ray logging while drilling, a plurality of probes are placed in the drill collar, and a cover plate is covered. The slotting position of the drill collar is close to the drill bit, the vibration of the drill bit can influence the data acquisition of the probe, and the design has strict requirements on the strength, the sealing property and the shock absorption of the cover plate and has high maintenance difficulty; the matched circuit board is also designed by slotting the body and arranging the cover plate in a matched manner, and if data needs to be read, the cover plate needs to be opened, so that the operation is complicated; and the prior while-drilling azimuth gamma equipment in China is mostly designed independently or in a whole set, so that the cost is high in the actual operation and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem to prior art exists provides a many probes formula position gamma drill collar.

The utility model provides a technical scheme that its technical problem adopted is:

a multi-probe type azimuth gamma drill collar comprises a non-magnetic body, a pressure-resistant outer barrel, a gamma probe, a probe shell and a hanging disc, wherein the non-magnetic body is provided with a cylindrical shell structure, a groove is formed in the side wall of the non-magnetic body, a detection assembly and a positioning assembly are positioned in the groove of the non-magnetic body, the positioning assembly comprises a ray shielding block and polyether-ether-ketone resin, the ray shielding block is positioned between an independent split type assembly and the groove of the non-magnetic body, the gamma probe is provided with an independent split type protection assembly, the independent split type protection assembly comprises an upper probe plug and a probe shell, a lower probe plug is positioned in the groove of the non-magnetic body, both the upper probe plug and the lower probe plug are provided with sealing rubber rings, the gamma probe is firstly installed with a damping silica gel pad and then sent into the probe shell, the upper probe plug and the lower probe plug are screwed in to complete the installation of the independent split type protection assembly, the hanging disc is arranged in the non-magnetic body, hang disc upper portion and be connected with four core sliding rings, it is connected with the resistance to compression urceolus through the upper portion conversion head to hang the disc lower part, hang the disc pass through the holding ring realize with do not have the location between the magnetic body, the inside telescopic link that sets up of magnetic body, telescopic link one end is connected with hanging the disc, the telescopic link other end is connected with follow-up equipment, telescopic link adopts four core sliding ring communications with the communication mode of gamma probe, the integrated accelerometer of resistance to compression urceolus, group battery and spool, set up 2 centralizers between accelerometer and the group battery.

The independent split type protection assembly is parallel to the radial direction of the non-magnetic body.

Ray shielding blocks are arranged between the independent split type protection assembly and the inner wall of the groove of the non-magnetic body, and the independent split type protection assembly is connected with the non-magnetic body through screws.

The suspension disc is provided with two sealing rubber rings in the radial direction, the connection modes are threaded connection, and grooves are formed in the surface of the suspension disc and used for mounting the plug pin seat to be connected with the circuit board.

The middle part of above-mentioned no magnetism body is provided with 2 recesses, and 2 recesses contained angle each other is 120 for installation communication board and main control board, fluting surface are provided with the sealing washer recess for installation sealing rubber circle, are provided with countersunk screw hole on the communication main control apron, are used for being connected between communication main control apron and the no magnetism body.

Above-mentioned no magnetism body upper portion is provided with 3 recesses, 3 recesses contained angle each other is 120 for the installation position circuit board, terminal circuit board, power control panel, the fluting surface is provided with the sealing washer recess, be used for installing the sealing rubber circle, be provided with the through-hole on the circuit reading mouth apron, be used for installing reading mouth end cap, be provided with 2 sealing rubber circles on the reading mouth end cap, reading mouth end cap below is provided with the contact pin baffle, be used for the location contact pin seat, be provided with the countersunk screw hole on the circuit reading mouth apron, be used for circuit reading mouth apron and be connected between the no magnetism body.

The inside transition ring that sets up of above-mentioned no magnetism body, the transition ring adopts the design of trapezoidal pore for change the diameter of mud water conservancy diversion passageway, mud is after the transition ring, and the diameter can increase.

The utility model discloses carry out the fluting to the drill collar post outside and handle, carry out independent split type protection to gamma probe, circuit board cover plate independent design reading mouth, drill collar upper portion carries out the design of general formula, has realized along with boring simplification, the universalization of position gamma logging equipment, has improved instrument measurement accuracy and position imaging nature simultaneously.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the inner structure of the non-magnetic body of the present invention;

FIG. 3 is a schematic view of the internal structure of the probe housing of the present invention;

fig. 4 is a schematic top view of the present invention;

fig. 5 is a schematic top view of the internal structure of the present invention;

FIG. 6 is a schematic view of the structure of section C-C of FIG. 4;

fig. 7 is a schematic structural view of the pressure-resistant outer cylinder of the present invention.

In the figure, 1 is a non-magnetic body, 2 is an upper plug of a probe, 3 is a compression-resistant outer cylinder, 4 is a probe shell, 5 is a lower plug of the probe, 6 is an accelerometer, 7 is a shock-absorbing silica gel pad, 8 is a centralizer, 9 is a centralizer, 10 is a reading plug, 11 is a pin baffle, 12 is a circuit reading cover plate, 13 is a wire hole plug, 14 is a battery pack, 15 is a wire pipe, 16 is a communication main control cover plate, 17 is a transition ring, 18 is a positioning short cylinder, 19 is a hanging disc, 20 is a pin sleeve, 21 is a lower connection of a pin, 22 is a four-core slip ring, 23 is a ray shielding block, 24 is a telescopic connecting rod, 25 is a positioning ring, 26 is an upper conversion head, and 27 is a gamma probe.

Detailed Description

As shown in fig. 1, 2, 3, 4, 5, 6 and 7, the multi-probe type azimuth gamma drill collar comprises a non-magnetic body 1, an upper probe plug 2, a probe shell 4, a lower probe plug 5, a shock-absorbing silica gel pad 7, a read plug 10, a pin baffle 11, a circuit read plug cover plate 12, a wire through hole plug 13, a communication main control cover plate 16, a transition ring 17, a positioning short tube 18, a suspension disc 19, a pin sleeve 20, a lower pin connection 21, a four-core slip ring 22, a ray shielding block 23, a positioning ring 25, an upper conversion head 26 and a gamma probe 27.

The non-magnetic body 1 is a cylindrical shell which is machined by taking non-magnetic stainless steel N1310B as a material, and NC50 drill rod threads are arranged at the upper end and the lower end of the non-magnetic body. The side wall of the non-magnetic body 1 is provided with a groove, a slurry flow guide channel is arranged in the groove, the independent split type assembly comprises an upper probe plug 2 and a probe shell 4, a lower probe plug 5 is located in the groove, the upper probe plug 2 and the lower probe plug 5 are both provided with sealing rubber rings, the probe is firstly installed with a damping silica gel pad 7 and then is sent into the probe shell 4, and the upper probe plug 2 and the lower probe plug 5 are screwed in the probe to complete the installation of the independent split type assembly. The independent split type component is parallel to the radial direction of the non-magnetic body. The ray shielding plate 23 is arranged between the independent split type component and the inner wall of the groove of the non-magnetic body, and the independent split type component is fixedly connected with the non-magnetic body 1 through a screw. The non-magnetic body 1 is internally provided with a suspension disc 19, the upper part of the non-magnetic body is connected with a four-core slip ring 22, the lower part of the non-magnetic body is connected with an upper conversion head 26, two sealing rubber rings are arranged in the radial direction of the non-magnetic body, and the connection modes are threaded connection. The surface of the plug pin is provided with a slot for installing the plug pin seat and connecting with a circuit board. The suspension disc 19 is positioned with respect to the nonmagnetic body 1 by means of a positioning ring 25. The telescopic connecting rod is arranged in the non-magnetic body 1, one end of the telescopic connecting rod is connected with the hanging disc, the other end of the telescopic connecting rod is connected with subsequent equipment, the telescopic connecting rod is communicated with the azimuth gamma in a four-core sliding ring 22 mode, and rubber sealing rings are arranged at two ends of the telescopic connecting rod. The middle part of no magnetism body 1 is provided with 2 recesses, and 2 recesses contained angle each other is 120 for installation communication board and main control board, and the fluting surface is provided with the sealing washer recess for installation sealing rubber circle, is provided with countersunk screw hole on the communication main control apron 16, is used for being connected between communication main control apron 16 and no magnetism body 1. The upper portion of the non-magnetic body 1 is provided with 3 grooves, the included angle between the 3 grooves is 120 degrees, the grooves are used for installing an azimuth circuit board, a terminal circuit board and a power supply control board, sealing ring grooves are formed in the surfaces of the grooves and used for installing sealing rubber rings, through holes are formed in a circuit reading cover plate 12 and used for installing a

reading plug

10, 2 sealing rubber rings are arranged on the reading plug, and a contact pin baffle 11 is arranged below the reading plug and used for positioning a contact pin base. The circuit reading cover plate 12 is provided with a countersunk screw hole for connecting the circuit reading cover plate 12 and the non-magnetic body 1. The transition ring 17 is arranged in the non-magnetic body 1, the design of a trapezoidal pore passage is adopted for changing the diameter of the slurry guide channel, and the diameter of slurry can be increased after the slurry passes through the transition ring 17. The compression-resistant outer barrel 3 is designed by integrating the accelerometer 6, the battery pack 14 and the wire passing pipe 15, and the centralizer 8 and the centralizer 9 are arranged, so that the problem of centering of the whole string of compression-resistant outer barrels in the installation process is solved, and the installation difficulty is optimized. And the compression-resistant outer cylinder 3 is connected with the hanging disc 19 through the upper conversion head 26 in a threaded connection mode, so that the whole instrument string is integrated, and the disassembly is more convenient. After the probe, the probe shell and the upper and lower plugs are installed, the probe shell and the upper and lower plugs are screwed into the nonmagnetic body 1 through screws, and after the installation and debugging of each circuit board are finished, the circuit board is installed into a corresponding circuit board groove, the cover plate is covered, and the reading plug 10 is screwed in. Each circuit board and the wiring of the pressure-resistant outer barrel pass through the wiring hole with the inner diameter of 8mm, and the wiring hole plug 13 is screwed in after the wiring is finished. The pressure-resistant outer cylinder is connected with the hanging disc 19 through an upper conversion head 26, and the whole instrument string is fed into the body through a special drawing tool.

Claims

1. A multi-probe type azimuth gamma drill collar is characterized by comprising a non-magnetic body, a compression-resistant outer barrel, a gamma probe, a probe shell and a hanging disc, wherein the non-magnetic body is of a cylindrical shell structure, a groove is formed in the side wall of the non-magnetic body, a detection assembly and a positioning assembly are positioned in the groove of the non-magnetic body, the positioning assembly comprises a ray shielding block and polyether-ether-ketone resin, the ray shielding block is positioned between an independent split type assembly and the groove of the non-magnetic body, the gamma probe is provided with an independent split type protection assembly, the independent split type protection assembly comprises an upper probe plug and a probe shell, a lower probe plug is positioned in the groove of the non-magnetic body, the upper probe plug and the lower probe plug are both provided with sealing rubber rings, the gamma probe is firstly installed with a damping silica gel pad and then sent into the probe shell, and is screwed into the upper probe plug and the lower probe plug to complete the independent split type protection assembly installation, it arranges in inside no magnetism body to hang the disc, it is connected with four core sliding rings to hang disc upper portion, it is connected with the resistance to compression urceolus through the upper portion crossover sub in the disc lower part of hanging, it realizes and does not have the location between the magnetism body through the holding ring to hang the disc, the inside telescopic link that sets up of no magnetism body, telescopic link one end is connected with hanging the disc, the telescopic link other end is connected with follow-up equipment, telescopic link adopts four core sliding ring communications with gamma probe's communication mode, the integrated accelerometer of resistance to compression urceolus, group battery and spool, set up 2 centralizer between accelerometer and the group battery.

2. The multi-probe azimuth gamma drill collar as claimed in claim 1, wherein the independent split protection component is parallel to the radial direction of the nonmagnetic body.

3. The multi-probe azimuth gamma drill collar as claimed in claim 1, wherein a ray shielding block is arranged between the independent split type protection assembly and the inner wall of the groove of the non-magnetic body, and the independent split type protection assembly is connected with the non-magnetic body through a screw.

4. The multi-probe azimuth gamma drill collar as claimed in claim 1, wherein two sealing rubber rings are arranged in the radial direction of the suspension disk, the connection modes are threaded connection, and grooves are formed in the surface of the suspension disk and used for mounting the pin holder to be connected with a circuit board.

5. The multi-probe azimuth gamma drill collar as claimed in claim 1, wherein the middle of the non-magnetic body is provided with 2 grooves, the included angle between the 2 grooves is 120 degrees, the grooves are used for mounting the communication board and the main control board, the grooved surface is provided with a sealing ring groove for mounting a sealing rubber ring, and the communication main control cover plate is provided with a countersunk screw hole for connecting the communication main control cover plate and the non-magnetic body.

6. The multi-probe type azimuth gamma drill collar as claimed in claim 1, wherein the upper portion of the non-magnetic body is provided with 3 grooves, the 3 grooves have an included angle of 120 degrees with each other, and are used for mounting an azimuth circuit board, a terminal circuit board and a power control board, the grooved surface is provided with a sealing ring groove for mounting a sealing rubber ring, the circuit reading cover plate is provided with a through hole for mounting a reading plug, the reading plug is provided with 2 sealing rubber rings, a pin baffle is arranged below the reading plug for positioning a pin base, and the circuit reading cover plate is provided with a countersunk screw hole for connecting the circuit reading cover plate with the non-magnetic body.

7. The multi-probe azimuth gamma drill collar as claimed in claim 1, wherein a transition ring is arranged in the nonmagnetic body, and the transition ring is designed with a trapezoidal duct.