Katharine G. Dahm

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Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing this collection of information. Send comments regarding this burden estimate or any other aspect of(More)
Coalbed methane (CBM) or coalbed natural gas (CBNG) is an unconventional natural gas resource with large reserves in the United States (US) and worldwide. Production is limited by challenges in the management of large volumes of produced water. Due to salinity of CBM produced water, it is commonly reinjected into the subsurface for disposal. Utilization of(More)
In rats with Nitrosoguanidine induced carcinomas of the gastric stump, heterotopic ossifications are found freqently. The following stages of differentiation during the desmal ossification in the stump carcinomas are demonstrated: 1. Osteoblasts, 2. Osteoid, 3. Woven bone, 4. Lamellar bone. --The islands of metaplastic bone cells are predominantly located(More)
Produced water is a byproduct of oil and gas production and represents the largest volume waste stream in the oil and gas industry. Due to the high demand for water and the costs associated with current produced water disposal practices, energy companies and local water users are interested in cost-effective alternatives for beneficial use of produced(More)
Production of unconventional gas resources commonly requires the use of hydraulic fracturing and chemical production well additives. Concern exists for the use of chemical compounds in gas wells due to the risk of groundwater contamination. This study focuses on a proposed method of identifying groundwater contamination from gas production. The method(More)