Drilling liner hanger releasing device and method adopting cable tie trigger communication control
A liner hanger and communication control technology, applied in the field of oil and gas field drilling, can solve the problems of blind construction and complex downhole, and achieve the effect of simple operation
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[0022] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer ” refer to directions toward or away from the geometric center of a particular part, respectively.
[0023] Such as figure 1 and figure 2 Shown is a liner hanger reversing device 19 and its pipe string connection method controlled by communication with a cable trigger. The liner hanger reverse buckle device 19 includes an upper joint 1, a motor outer shell 3, a motor inner shell 4, a coupling sleeve 5, a downhole battery 6, a sealing ring, a motor rotor 8, a downhole circuit...
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