Drilling two well cementing Changqing market high rate of cement
China oil network news as of now, Bohai drilling second Changqing market this year to complete the surface, cementing technology sets, 272 wells, cementing quality pass rate of 100%, excellent rate of 94.44%, the high quality rate increased 1.35 percentage points.
According to the cementing temperature, small clearance, casing sealed length leakage construction difficulties, the company optimized cement slurry system with low density, high strength, effectively solve the leakage problem. At the same time, the company uses the technology of injection, back extrusion and horizontal well return to improve displacement efficiency. Through the wellhead pressure control and other scientific measures, the construction of the whole well cementing has been guaranteed. Up to now, the company has completed the use of positive injection back extrusion technology 83 times construction wells, cementing quality rate of 96.7%.
To effectively solve the cementing problems in construction, strengthen the supervision of the key links of the key blocks, the company strict quality materials into the well in advance, safety supervision, send technicians in wells, put before the construction of centralizer, mud performance adjustment work, ensure the construction control.
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