The conduit flexu00ecvel not connected for flexu00ecvel active transport of fluid under pressure, and flexu00ecvel injection of mud in rotary drilling

摘要

"The conduit flexu00ecvel not connected for the realization of flexu00ecvel active transport of fluid under pressure and injection flexu00ecvel mud for rotary drilling.The flexible conduit is not attached (1) for flexible dynamic transport of fluid under pressure.Notably flexible (110) injection of mud for oil drilling rotating, comprises from inside to outside an internal polymer sheath (2),At least two ply armor Crusades (4, 6) consisting of wire (4 - 2.6 - 2) wound spirally with the angles of opposite frame a and B close to the angle of balance of 55 0 and average centered on a value close to the said value of angle of balance and a sheathPolymeric external (8); the conduit comprises a layer antifluu00eancia,Performed by at least one winding (9) of the edges together a strip of high mechanical characteristics and by the fact that the angles of the frame a and B of the cross plies of armor (4.6) are different.