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Sinochem News Network recently, the "complex deep and shale oil high-efficiency water-based drilling and completion fluid technology and large-scale application" independently developed by PetroChina Bohai Drilling Mud Company won the second prize of Tianjin Science and Technology Progress Award
Based on the idea of "inhibiting hydration - causing sealing and plugging - density support" to coordinate and stabilize the wellbore, the company has carried out technical research on high-efficiency surface hydration inhibitors and plugging agents, and cooperated with high-temperature and salt-resistant drilling fluid treatment agents to solve complex deep and The problem of borehole stability in long horizontal wells in shale oil
This technology has solved the technical problems in the development of shale oil horizontal wells, such as low cutting efficiency, low rock breaking efficiency, and wellbore trajectory control, and achieved a major breakthrough in the completion technology of high temperature and high pressure drilling fluid in deep drilling in Qinghai and Tarim
In addition, the research results have won 8 national invention patents, and 77 wells have been successfully promoted and applied in Tarim, Qinghai and Dagang shale oil markets, creating 27 technical indicators such as the deepest horizontal well in Dagang Oilfield and the longest horizontal section of shale oil.