Thermally conductive cements and methods for use thereof

A method for cementing a subterranean well, comprising:

• preparing a pumpable composition, the pumpable composition comprising:
• water;
• a cement;
• and
• a particulate additive for increasing thermal conductivity, wherein the particulate additive has a particle size between 50 and 470 μm, and is present in the composition at a concentration between 20% and 75% by weight of cement;
• placing the pumpable composition in the subterranean well.

A method for installing electrical cables, comprising:

• preparing a pumpable composition, the pumpable composition comprising:
• water;
• a cement;
• and
• a particulate additive for increasing thermal conductivity, wherein the particulate additive has a particle size between 50 and 470 μm, and is present in the composition at a concentration between 20% and 75% by weight of cement;
• encasing the electrical cables with the pumpable composition.