The docking and positioning structure of the multi-core joint of the logging instrument
A positioning structure and logging tool technology, which is applied in the directions of measurement, connection, borehole/well components, etc., can solve problems such as difficult docking of multi-core logging instruments, and achieve good positioning effect, difficult docking, and high strength
Active Publication Date: 2015-12-16
WUHAN HAIWANG MECHANICAL & ELECTRICAL ENGTECH
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[0008] The purpose of the present invention is to provide a multi-core joint docking positioning structure for logging tools to solve the problem of difficult docking between multi-core logging tools, especially small-diameter tools
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[0024] Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail:
[0025] Such as Figure 1~4 As shown, the docking and positioning structure of the multi-core joint of the logging instrument designed in the present invention includes a male joint body 1 and a female joint body 9. The outer circular wall of the male joint body 1 is provided with a threaded connection ring 2 that rotates with it. The connecting ring 2 adopts a split structure and is integrated into one body during installation. The inner circular wall of the female connector body 9 is provided with threads that match the threaded connecting ring 2, thereby connecting the male connector body 1 and the female connector body 9 as a whole. . An O-ring 16 matched with the inner wall of the female joint body 9 is also arranged on the outer wall of the male joint body 1. Two O-rings 16 are provided to prevent downhole liquid or moisture from erod...
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A multi-core connector butt-joint positioning structure of a logging instrument comprises a male connector body and a female connector body, wherein a threaded connecting ring is arranged on the outer circular wall face of the male connector body, the inner circular wall face of the female connector body is provided with threads matched with the threaded connecting ring, a male connector retaining ring is detachably fixed in the inner cavity of the male connector body, a male connector plug-in part is detachably fixed in the inner cavity of the male connector retaining ring, and an outward-protruding male connector positioning half ring is arranged at the front end of the male connector retaining ring. A female connector retaining ring is detachably fixed in the inner cavity of the female connector body, a female connector plug-in part is detachably fixed in the inner cavity of the female connector retaining ring, and an outward-protruding female connector positioning half ring is arranged at the front end of the female connector retaining ring. When the male connector body and the female connector body are connected integrally, the male connector plug-in part and the female connector plug-in part are in a plug-in matched mode, and the male connector positioning half ring and the female connector positioning half ring are combined to form a whole circular ring. The positioning structure is good in structural strength and large in rigidity, and the problem of difficult butt joint of multi-core logging instruments is solved.
Description
technical field [0001] The invention relates to a docking technology of a downhole logging instrument, in particular to a docking and positioning structure of a multi-core joint of a logging instrument. Background technique [0002] At present, many well logging instruments are very long and heavy. In order to facilitate transportation, they must be assembled in multiple sections. The segments can be threaded together without the internal ferrule being misaligned with the rotation of the thread. [0003] The positioning structure of the multi-core joint of the traditional logging tool has the following problems: [0004] 1. Some positioning structures are too weak. If the two sections are connected by shaking too much, the internal structure will be damaged and the two sections cannot be connected, which seriously affects the logging efficiency. [0005] 2. Some positioning structures adopt the form of positioning pins. It is necessary to find out the position of the pin a...
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IPC IPC(8): E21B47/00H01R13/631H01R24/00
Inventor 李伟孙扬喆刘情超
Owner WUHAN HAIWANG MECHANICAL & ELECTRICAL ENGTECH