期刊
JOURNAL OF UNCONVENTIONAL OIL AND GAS RESOURCES
卷 12, 期 -, 页码 1-5出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.juogr.2015.07.001
关键词
Variability; Frac flowback; Produced water; Wattenberg field
Wastewater from shale oil and gas wells is an issue that has received significant attention although limited research has been conducted on the variability of water production from hydraulically fractured wells. In this paper, sources of variability in flowback and produced water volumes from horizontal oil and gas wells were examined and correlations established. Horizontal wells in the Denver-Julesburg basin operated by Noble Energy were studied and results show that water production varies with time, location and wellbore length as expected. Additionally, production volume variation with fracturing fluid type and water source (fresh versus recycled) was explored. Results indicate that both of these variables should also be considered when developing a general model for water production. A guar based frac fluid resulted in greater water production when compared to a cellulose-derivative based fluid. Finally, wells fraced with a fresh water based fluid had significantly greater produced water volume than geospatially-paired wells with a 1/7-recycled/fresh blend based fluid. (C) 2015 Elsevier Ltd. All rights reserved.
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