Wellbore wax and sand control tubular column used for oil field oil extraction
A sand control pipe and wellbore technology, which is applied in earth-moving drilling, wellbore/well components, isolation devices, etc., can solve the problems of high pipe lifting operation cost, affecting oil well production, serious sand production, etc., to reduce the risk of operation pollution and Operational safety risks, saving wellbore maintenance costs, and preventing corrosion of tubing and casing
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[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and examples, but the given examples are not intended to limit the present invention.
[0023] Such as figure 1 As shown, the embodiment of the present invention includes an oil extraction pipe structure and a casing 1, and the casing 1 is coated on the outside of the oil extraction pipe structure, wherein, it also includes a circulation heating pipeline, an external circulation channel and an oil pump circulation passage, and the circulation heating pipeline is set At the upper end of the oil suction pipe structure, the circulation heating pipeline includes the connected first circulation heating pipeline 2, the second circulation heating pipeline 3 and the third circulation heating pipeline 4, the first circulation heating pipeline 2, the second circulation heating ...
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