Lawrence Livermore National Laboratory underground coal gasification data base. [US DOE-supported field tests; data]

A Review of Underground Coal Gasification Research and Development in the United States

“…The seam is 15 meters thick vertically in this small test.). Cena and Thorsness (1981) estimated negligible gas loss. Some product gas leaked up the coal seam to a surface outcrop, and up the outside of the production well, but not enough to significantly affect recovery.…”

“…Key general observations and conclusions about UCG are summarized. Cena and Thorsness (1981) created and populated a very detailed computer database for all DOE-funded UCG field tests through 1979, including all the Hanna and Hoe Creek tests, Pricetown I, and Rawlins I. The cited report on the database "results" is an extremely useful reference for these tests.…”

“…Fischer et al (1977) provides a contemporary description of Hanna II Phases 2 and 3. Cena and Thorsness (1981) provide concise descriptions of the operations, sketches, and consistently-calculated material and energy balances. Shafirovich et al (2011) include an intermediate level of detail on the geology, operations, and results.…”

“…Thorsness and Creighton (1983) review the tests briefly and analyze them in the context of an energy balance. Cena and Thorsness (1981) contains very brief descriptions and extensive results on the energy and material flows over periods within each test. Thorsness and Britten (1989) provide a brief review, emphasizing accomplishments and conclusions drawn.…”

Resources and economic analyses of underground coal gasification in India

“…The predicted gas compositions are compa-283 rable with the UCG pilot results considering the simplicity of the Table 4 Coal analyses [20,21]. The analyses of three Indian coal samples are tabulated in Table 7 303 [15].…”