Ion and Stable Isotope Geochemistry of Produced Water in Coalbed Methane Wells in the Tiefa Basin.

The potential geochemical information in the produced water of coalbed methane (CBM) wells is conducive to the exploration and development of CBM in the case that the produced water is primitive formation water. A total of 58 produced water samples collected from 13 CBM wells in the Daxing Mine, Tiefa Basin, were investigated. Ionic composition tests and stable isotope analysis were conducted to explore the geochemical characteristics and sources of produced water as well as the method for determining whether the produced water is primitive formation water.

Evolution of Composition and Methane Occurrence of Bituminous Coal after Igneous Intrusion: A Case Study of Daxing Coal Mine, Tiefa Basin, China.

Since 1987, there have been 10 coal and gas outbursts in Daxing Coal Mine, Tiefa Basin. It was reported that these outbursts were related to igneous intrusion. To study the influence of igneous intrusion into bituminous on coal bed methane (CBM) occurrence, eight coal samples were collected at different distances (0.

Chemical Characteristics and Development Significance of Trace Elements in Produced Water with Coalbed Methane in Tiefa Basin.

Coalbed methane (CBM) is an unconventional natural gas resource. CBM mining releases a large amount of coproduced water, and the trace elements of CBM coproduced water can provide a basis for the exploration and development of CBM. The contents of eight major trace elements in the produced water from wellhead were tested and analyzed based on seven CBM wells in Tiefa Basin.