Earth heat exchange system

A bottom member for an earth bore heat loop system, the bottom member comprising

• a body,
• a first bore through the body extending from a first opening of the body to a second opening of the body, the first opening and the second opening each sized and configured for receipt therein of an end of heat loop pipe,
• a second bore having at least one opening on the body, the second bore sized and configured for securement thereat of an end of coil tubing, and
• the second bore not in fluid communication with the first bore.

A method for emplacing filler material in an earth heat loop wellbore, the method comprising

• installing a heat loop in an earth heat loop wellbore with coil tubing, the earth heat loop wellbore extending down into the earth in the wellbore, the heat loop comprising heat loop pipe and a bottom member, the heat loop pipe extending down to the bottom member on one side thereof and up from the bottom member on another side thereof, the bottom member comprising a body, a first bore through the body extending from a first opening of the body to a second opening of the body, the first opening and the second opening each sized and configured for receipt therein of an end of heat loop pipe, a second bore having at least one opening on the body, the second bore sized and configured for securement thereat of an end of coil tubing, the second bore not in fluid communication with the first bore, the coil tubing releasably secured in the second bore of the bottom member,
• disposing the heat loop so that a lower end thereof extends down into the wellbore,
• moving the heat loop into the wellbore by injecting the coil tubing into the wellbore, the coil tubing pushing on the bottom member to push the heat loop down into the wellbore,
• releasing the coil tubing from the bottom member,
• raising the coil tubing within the wellbore and pumping wellbore filler material out from a lower end of the coil tubing into the earth heat loop wellbore, and
• removing the coil tubing from the earth heat loop wellbore.