Non-explosive power source for actuating a subsurface tool

摘要

Power sources and methods for applying a force to an object include use of thermite in a quantity sufficient to generate a thermite reaction, and a gas producing substance disposed in association with the thermite. The gas producing substance produces a gas when the thermite reaction occurs. The thermite reaction, the gas, or combinations thereof provide a force to the object. The gas can slow the thermite reaction to enable slower or continuous application of force while being non-extinguishing of the thermite reaction. The gas can further control heat transfer from the thermite reaction to adjacent objects.

主权项

1. A power source for actuating a subsurface tool, the power source comprising:
a quantity of thermite sufficient to generate a thermite reaction when heated in excess of an ignition temperature; and a gas producing substance disposed in association with the thermite, wherein the gas producing substance produces a gas when the thermite reaction occurs, wherein the gas slows the thermite reaction, and wherein the gas, the thermite reaction, or combinations thereof, produces a pressure actuating a subsurface tool.