Issue: 3(34), 2014. Series: Multi-Topic

BENDING LOADS ON DRILL PIPE UNDER INCLINED DIRECTIONAL WELL DRILLING

UDK: 624.042.1:622.24.053.6

Filatov V. A., Kaminskii I. A.

The authors consider the scope of application of inclined directional well drilling. This technology is characteristic first of all for cluster drilling on land and offshore drilling platforms. Value of bending force is estimated as well as torque on a ten-meter plot of a number of drill pipes depending on the well curvature, modulus of elasticity of the pipe material and axial moment of inertia of its cross-section. The article shows the dependence of curve voltage under constant well curvature from the outside diameter of drill pipes and provides recommendations on use of pipes of certain nominal diameter with different well curvature.