E3S Web Conf.
Volume 352, 20227th International Conference on Energy Science and Applied Technology (ESAT 2022)
|Number of page(s)||4|
|Section||Fossil Energy & Geological Engineering|
|Published online||27 June 2022|
Application of combined test string of RD bypass pressure test valve and RD safety circulation valve
Market Development Center of Oil Test and Production Branch of Daqing Oilfield Co., Ltd. China
At present, in the test construction of high temperature, high pressure and high hydrogen sulfide wells, in order to simplify the pipe string structure and improve the process success rate, the combination of RD safety circulation valve and OMNI multiple circulation valve is often used to carry out the triple operation of perforation+acid fracturing+test, which can realize the operation of one opening and one closing. However, due to the complex structure, high failure rate and high construction cost of the OMNI multi-cycle valve, most operators are unwilling to use it, but without the pipe string of the OMNI multi-cycle valve, the slurry replacement operation cannot be completed. This paper introduces an RD bypass pressure test valve which can replace OMNI multi-cycle valve. It can not only realize the function of slurry replacement, but also increase the success rate of operation because of its simple structure, so it is more and more favored by users.
Key words: Hydrogen sulfide / test / RD safety circulation valve / Omni multiple circulation valve / RD bypass pressure test valve
© The Authors, published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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