Terry Ruel C: Method of pyrolysis of coal in situ. In Situ Technology, Burton Crandell & Polumbus, December 9, 1975: US3924680 (254 worldwide citation)

A method of pyrolysis of coal in situ includes the steps of establishing a pair of passages between a sub-surface coal formation and the surface with the coal passages being adapted to separately remove liquids and gases from the coal formation, establishing a sump at the bottom of the passages whic ...

Terry Ruel C, Stoddard Xerxes T: Method of extracting immobile hydrocarbons. Ruel C Terry, Xerxes T Stoddard, Polumbus Gary M, May 6, 1975: US3881551 (194 worldwide citation)

A method of extracting immobile hydrocarbons includes the steps of sinking spaced wells into the hydrocarbon formation, fracturing the formation near the bottom of the wells to establish subsurface communication between the wells, passing a heated fluid through the wells and the hydrocarbon formatio ...

Terry Ruel C, Sutherland John A: Hydrocarbon sweep process. Allied Chemical Corporation, Henry Patrick L, Plaut Jonathan, June 11, 1974: US3815678 (3 worldwide citation)

This invention relates to a process for freeing hydrocarbons, especially heavy or immobile hydrocarbons (such as undriven hydrocarbons, for example those of high viscosity and gravity), from underground formations. More particularly, this invention relates to a process for bringing to the earth's su ...



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