1
Bernard J Eastlund, Kenneth J Schmitt, Ronald M Bass, John M Harrison: Method and system for introducing electric current into a well. Production Technologies International, Vinson & Elkins, January 5, 1988: US04716960 (310 worldwide citation)

An invention for supplying power to a well. In one embodiment power heats a tubing from adjacent the surface to a selected level to prevent the formation of solids. The tubing is heated by passing an electric current therethrough. In one form the tubing is insulated from the wellhead and the casing ...


2
Eastlund Bernard J, Schmitt Kenneth J, Bass Ronald M, Harrison John M: Methode et systeme pour electrifier un forage, Method and system for introducing electric current into a well. Production Technologies International, SMART & BIGGAR, July 24, 1990: CA1271980

ABSTRACT OF THE DISCLOSURE A method and system for supplying power to a well. In one embodiment power is used for heating a well tubing from adjacent the surface down to a selected level to prevent the formation of solids such as paraffin or hydrates. The tubing is heated at least in part by passing ...


3
THERMAL CONDITIONING OF FISHBONES. March 23, 2017: US20170081950-A1

The present disclosure relates to a particularly effective well configuration that can be used for SAGD and other steam based oil recovery methods. Fishbone multilateral wells are combined with SAGD, effectively expanding steam coverage, but the fishbones are preheated to mitigate plugging problems, ...