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Li Z.,Down Hole Operation Service Company | Ma J.,Down Hole Operation Service Company | Li J.,Down Hole Operation Service Company | Wang D.,Down Hole Operation Service Company | Gao L.,Down Hole Operation Service Company
Well Testing | Year: 2014

In perforating process to oil and gas wells, it exists that equipment parts damage or man-made factors lead to no sealing at junction between Christmas tree and tubing head for lack of effective means to check sealing at connection of the wellhead tree and tubing head, which results in oil and gas leakage after perforation, producing serious accident. So, a series of testing tool to check wellhead tree tightness has been developed. The tools are mainly two kinds of the tubing hanger packer and tubing plug, which has features of reasonable structural design, convenient operation. Through the laboratory test, its safe and reliable is verified, and the products are formed, which have been popularly promoted.

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