Petroleum equipment tubular connection

Details Petroleum equipment tubular connection Petroleum equipment tubular connection

1988-03-21

1989-03-21

Arola, Dave W.

Pipe joints or couplings

With lubrication

285333, 285355, 285915, 523176, 156327, F16L 700

Patent

active

048137146

ABSTRACT:
An anaerobic sealant composition is employed to seal a pipe joint between pin and box members intended for use in petroleum drilling operations. The composition is applied to one or both of the members. The members are then joined and the composition cured into a solid form which bonds to the members and fills the space between them. The constituents of the composition can be selectively varied to control its lubricity which also affects the make up torque. Additionally, the concentration of the sealant composition can be selectively varied to control the break out torque of the joint to which it is applied, and preferably make the break out torque substantially greater than the make up torque. Excellent seals can be obtained using lower grade pipe, and the pin and box members can be made up with the application of lower torque to the assembly without reducing the sealing capabilty of the connection. The preferred composition also serves as a rust and corrosion inhibitor for the joint.

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