The liner of the well for use in the construction of an assembly of liner of well of underground coal gasification (UCG); installation of liner of well of underground coal gasification; and method of underground coal gasification in a coal seam is provided with a pou00e7 The fuel injection, a well production, and a channel of the inner layer between injection well and production well

摘要

Summary segment of shaft liner for use in the construction of an assembly of liner of well of underground coal gasification (UCG); installation of liner of well of underground coal gasification; and method of underground coal gasification in a coal seam with An injection well.A well production, and a channel of the inner layer between injection well and production well of the invention refers to compositions and methods for the construction of an assembly of liner of well of underground coal gasification (UCG).In particular, describes a segment of shaft liner for use in the construction of a mounting shaft liner of UCG to transport gas from product to a well production. It also is described a system and method for the production of UCG product gas.