초록 ▼

An apparatus and method for communicating electricity from a well surface to a downhole well tool. An electrical conductor is positioned within a sheath, and fluid is placed within a passage extending through the sheath. Electricity is transmitted to the well tool through the conductor, and the flui

An apparatus and method for communicating electricity from a well surface to a downhole well tool. An electrical conductor is positioned within a sheath, and fluid is placed within a passage extending through the sheath. Electricity is transmitted to the well tool through the conductor, and the fluid prevents well fluid intrusion into the sheath interior. The fluid can be pressurized from the well surface to communicate hydraulic fluid pressure to the well tool and to provide structural rigidity to the cable system. A diverter between the sheath and the well tool can selectively direct electricity or hydraulic fluid pressure to selected portions of the well tool, or to other tools positioned in the well.

대표청구항 ▼

[ What is claimed is:] [1.] An apparatus for communicating electricity downhole to a well tool in a wellbore, comprising:a hollow sheath having a first end proximate to the well surface and having a second end extending downwardly to the tool, wherein said sheath has an exterior surface proximate to

[ What is claimed is:] [1.] An apparatus for communicating electricity downhole to a well tool in a wellbore, comprising:a hollow sheath having a first end proximate to the well surface and having a second end extending downwardly to the tool, wherein said sheath has an exterior surface proximate to the wellbore;an electrical conductor within said hollow sheath for communicating electricity to the tool; anda fluid within said hollow sheath.