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Drilling Fluid and Lost Circulation Control
Release time:2017-11-9 14:49:44 Read:466

To tackle with complexities in deep and high H2S wells in Sichuan region, a series of drilling fluid technologies have been developed through years of research, including collapse-prevention technique during gas drilling transforming to conventional drilling when encountering high angle structure, deep and ultra-deep well drilling fluid system applicable to HTHP, salt-gypsum pollution prevention, slim hole drilling, high deviated and horizontal wells, reservoir damage prevention drilling (completion) fluid system to mitigate carbonate and low-permeability reservoir damage, and lost circulation control technique to prevent mud lost in sensitive, fractured and cavernous formations. In addition, bag plugging tool, plugging bellow and leakage zone tester have been successfully developed and widely applied in the field, all welcomed by customers. 



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