u0441u0436u0438u043cu0430u0435u043cu044bu0435 objects having a desired internal pressure, in combination with drilling fluid to form a variable density drilling mud

摘要

the u0441u0436u0438u043cu0430u0435u043cu044bu0439 object that can be used in u0431u0443u0440u043eu0432u043eu043c slurry and drilling systems for regulating the density of drilling fluid.u0441u0436u0438u043cu0430u0435u043cu044bu0439 object includes a shell that enters into the inner region.u0441u0436u0438u043cu0430u0435u043cu044bu0439 object has an internal pressure exceeding the value of about 200 pounds per square inch at atmospheric pressure and chosen for the outdoor pressurein which the external pressure exceeds the internal pressure, reduce u0441u0436u0438u043cu0430u0435u043cu043eu0433u043e objectthe shell is designed to reduce local stresses in the u0441u0436u0438u043cu0430u0435u043cu043eu043c facility when it expands and contracts.