Construction method of optical fiber television logging instrument for detecting fish top detection
A construction method and TV technology, which is applied in the directions of surveying, earthwork drilling and wellbore flushing, etc., can solve problems such as the inability to guarantee the success rate of optical fiber TV logging, achieve low logging success rate, improve cleanliness, and reduce turbidity degree of effect
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[0016] The present invention will be further described below:
[0017] The implementation steps of the on-site construction method of the optical fiber TV logging detection fish top described in the present invention are as follows:
[0018] Firstly, a tubing string with a bell-mouth at the end and a well-flushing function with a tubing centralizing device is lowered to the target position through special equipment, and then the tubing is lifted by 0.4-0.5 meters.
[0019] After completion, the wellhead sealing device is installed, and then the visible light logging instrument is lowered from the tubing, that is, the instrument for detecting the top of the fish by optical fiber TV logging. While running, keep the instrument in working condition. In the process of lowering, it should be noted that hot water should be injected while the instrument is lowered. The purpose of this is to prevent wax deposits and suspended matter from adhering to the camera and dead oil lumps from ...
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