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Leakage plugging technology under pressure
Industry scope and technical conditions of leak plugging under pressure: Main technical principles: ...
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Technology of replacing oil and gas wellhead gate valve under pressure
Technology Introduction This technology has been applied on-site for nearly 2,000 well times, involv...
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Technology of drilling through gate valve plate of oil and gas wellhead under pressure and replacing gate valve under pressure
Technology introduction With the continuation of the development time of the gas field, due to vario...
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