Underground one-way locking device
A technology of one-way locking and locking of blocks, applied in the field of formation exploration, can solve the problem of the interruption of wireless communication in the downhole of the relay receiving short section, and achieve the effect of improving the quality
Inactive Publication Date: 2014-08-06
CHINA NAT OFFSHORE OIL CORP +1
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The technical problem to be solved by the present invention is to overcome the defect that the up-and-down movement of the relay receiving sub-section easily leads to the interruption of underground wireless communication
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0032] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention.
[0033] Such as figure 1 with figure 2 As shown, the downhole one-way locking device of the embodiment of the present invention mainly includes a flat shaft 3, an outer sleeve 4, a moving sleeve 5, a pressure ring 6, a locking block 7, a spring 8, and the like.
[0034] Such as image 3 As shown, the flat shaft 3 includes a thicker first portion 31 and a thinner second portion 32 , wherein the first portion 31 is located at the first end of the flat shaft 3 , and the second portion 32 is located at the second end of the flat shaft 3 . Between the first part 31 and the second part 32, an outwardly protruding shoulder 33 is included, and the shoulder 33 includes a not...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an underground one-way locking device. The defect that the interruption of underground wireless communication is easily caused by a relay receiving short section is overcome. In the underground one-way locking device, a flat shaft comprises a thicker first part and a thinner second part; a ledge which is protruded outward is arranged between the two parts; a plane which extends to an end face of the second part is arranged on an outer surface of the second part; the ledge and the second part pass through an outer sleeve and are inserted into a moving sleeve; a window is arranged on a side wall of the outer sleeve; a groove is arranged in the moving sleeve along an axial direction; a spring hole is formed in the groove; a spring is placed in the spring hole; a locking block is placed in the groove of the moving sleeve; one end of the locking block is in contact with the moving sleeve; a blind hole is distributed in a first surface and is corresponding to the spring hole in the moving sleeve; a locking slot is formed in a second surface; and a guiding slope which is matched with a slope of the outer sleeve is arranged on a side wall of the locking block with the locking slot. The interruption of underground wireless communication caused by relay receiving short section movement is avoided in the underground one-way locking device, and the quality of wireless communication is greatly promoted.
Description
technical field [0001] The invention relates to formation exploration technology, in particular to an underground one-way locking device. Background technique [0002] For the low-frequency electromagnetic wave manometer direct-reading test system, in a new environment, the establishment of wireless communication takes a long time. After the wireless communication is established, the position of the relay receiving short section is required to be relatively fixed and no longer change, so as to ensure the communication quality of the wireless communication. [0003] At present, in the process of wireless transmission, the relay receiving sub-section tends to move up and down, which changes the position of the relay receiving sub-section, thus easily causing interruption of downhole wireless communication. However, to establish wireless communication again requires a certain amount of time to stabilize, which seriously affects the quality of communication and progress of the ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/06E21B47/12
Inventor 田志宾
Owner CHINA NAT OFFSHORE OIL CORP