Downhole Cable Termination Systems

摘要

Downhole cable termination apparatus for terminating a cable which is to extend into a downhole environment from a tubing hanger to electrical equipment, the apparatus comprising: an electrical contact for electrical engagement with a conductor of the cable to form a termination, which, in use, is to be electrically insulated by an insulating portion; and a housing defining a chamber for receiving the insulating portion and in which the internal pressure is isolated from pressure in the downhole environment.

主权项

1. A downhole cable termination apparatus for terminating a cable that is to extend into a downhole environment from a tubing hanger to electrical equipment, the downhole cable termination apparatus comprising:
an electrical contact for electrical engagement with a conductor of the cable to form a termination, the termination, in use, being electrically insulated by an insulating portion; a housing defining a chamber for receiving the insulating portion and in which the internal pressure is isolated from pressure in the downhole environment, wherein the housing is arranged to provide an annular cavity between the insulating portion and the housing; and a compensation chamber for accommodating changes of a volume of the annular cavity, the compensation chamber being in fluid communication with the chamber for receiving the insulating portion, the compensation chamber being comprised in the housing.