E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/24 (2006.01) E21B 17/00 (2006.01)
Patent
CA 2704561
A heater string for transmitting a heater fluid within a well, includes an inlet, an elongate tubular body and an inner tubular surface contiguous with the elongate body and contacting the heater fluid. The inner tubular surface includes a plasticized polyamide blend, allowing a reduction of the friction between the fluid and the string and thermal conductivity from the fluid toward the well, improving various functions of the string. The plasticizer may be a sulphonamide and include tougheners and reinforcement spines. Also, a hanger assembly for suspending the heater string includes an anchoring member, a nut mountable around the string and a connector body with a canalization communicating with the inlet of the string. The nut and connector body are securable together and abuttable against upstream-facing and downstream-facing surfaces of the anchoring member to enclose the anchoring member, allowing a secure hold on the heater string.
Best James Edward
Fulton Scott
Mestemacher Steve
Pugh Robert
Vandeponseele Angela Lee
E.i. Du Pont de Nemours And Company
Robic
Suncor Energy Inc.
Trican Well Service Ltd.
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