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A connection structure of a drill collar of an instrument while drilling and the male and female joints of the drill collar nipple

A technology of drilling equipment and connection structure, which is applied in the direction of electrical connection, connection and seismic connector combined with liquid connection, which can solve the problems of inability to replace conductive slip rings and large volume of drill collar connection plugs, etc. number, ease of assembly, and reduced maintenance costs

Active Publication Date: 2020-11-06
CHINA NAT OFFSHORE OIL CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the above two connection methods, the conductive slip ring is directly installed on the drill collar connector, and is integrated with the drill collar connector, which results in a large volume of the drill collar connector and makes the conductive slip ring impossible to replace

Method used

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  • A connection structure of a drill collar of an instrument while drilling and the male and female joints of the drill collar nipple
  • A connection structure of a drill collar of an instrument while drilling and the male and female joints of the drill collar nipple
  • A connection structure of a drill collar of an instrument while drilling and the male and female joints of the drill collar nipple

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[0031] In order to make the purpose, technical solution and advantages of the application clearer, the embodiments of the application will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0032] Such as figure 1 , Figure 4 and Figure 5 As shown, the embodiment of the present application provides a connection structure of a drill collar of an instrument while drilling, including a butt male 1 and a butt female 2, the butt male 1 is coaxially sleeved in the butt female 2, and the butt male 1 and the docking female head 2 can be relatively rotated. An electrical passage 31 is provided in the docking male connector 1 , and an electrical passage 32 is provided in the docking female connector 2 . A multi-core coaxial electrical female connector 4 is provided inside the docki...

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Abstract

The present application discloses a connection structure of a drill collar of an instrument while drilling and a male and female joint of the drill collar. Relatively rotatable with the butt female, the butt male and the butt female are respectively provided with electrical passages, and one of the butt male and the butt female is provided with a multi-core electrical channel connected to the electrical passage The other is provided with a multi-core coaxial electrical female connector connected to the electrical channel, the butt male connector is coaxially sleeved in the butt female connector, and the multi-core coaxial electrical male connector The connector is plugged and matched with the multi-core coaxial electrical female connector; the application is small in size and easy to assemble.

Description

technical field [0001] The application relates to the technical field of electrical connection of drilling instruments, in particular to a connection structure of drill collars of drilling instruments and male and female joints of drill collar nipples. Background technique [0002] In the research and development of the formation pressure measurement and sampling instrument while drilling, a drill collar connection plug is needed to establish electrical connection and liquid connection between two drill collar sub-sections. Among them, there are generally two traditional methods of electrical connection, one is to install a plug-in connector in the center of the connector of the two instruments to connect; the other is to install a conductive ring on the step surface of the male butt joint of the drill collar to realise. In the above two connection methods, the conductive slip ring is directly installed on the drill collar connector, and is integrated with the drill collar ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B17/02H01R13/02H01R24/38
CPCH01R24/38H01R2201/14H01R13/005H01R39/08E21B17/028H01R13/5202H01R39/64
Inventor 冯永仁鲍忠利余强秦小飞郑毅吴兴方赵中会郑金松
Owner CHINA NAT OFFSHORE OIL CORP
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