Sealed electrical conductor method and arrangement for use with a well bore in hazardous areas

A method of positioning an arrangement to conduct electrical power from a non-hazardous area through power source electrical conductor means to downhole electrical conductor means wherein the downhole electrical conductor means extends through a barrier in a well head in a hazardous area comprising:

• extending downhole electrical conductor means with rigid tube means thereon through the barrier;
• positioning rigid seal means to sealably secure the downhole electrical conductor means with the barrier;
• supporting a splice fitting adjacent the well head for providing an enclosure to receive the downhole electrical conductor means therein;
• enclosing the downhole electrical conductor means with a conduit portion which extends from the barrier to the splice fitting;
• and
• positioning rigid seal means to sealably engage the conduit portion with the barrier and with the splice fitting.

In an arrangement to conduct electrical power from a non-hazardous area through power source electrical conductor means to downhole electrical conductor means wherein the downhole conductor means extend through a barrier in a wellhead in a hazardous area including:

• rigid conduit means extending into the hazardous area from an adjacent non-hazardous area with the power source electrical conductor means therein for conducting electrical power to the downhole electrical conductor means;
• first seal fitting means on said rigid conduit means within the hazardous area, said seal fitting means having a vent therein;
• first splice fitting means connected to said first seal fitting means adjacent the wellhead for receiving the ends of said power source electrical conductor means and the ends of said downhole electrical conductor means therein for splicing them together;
• second splice fitting means connected to said rigid conduit means outside the hazardous area for receiving therein the ends of an electric conductor from a power source and the ends power source electrical conductor means in said rigid conduit means for splicing them together;
• second seal fitting means connected to said second splice fitting means, said seal fitting means having a vent therein;
• and
• each said first and second seal fitting means having seal means therein within eighteen inches, respectively, of said first and second splice fitting means.