By a News Reporter-Staff News Editor at China Weekly News -- A new study on Alkanes - Methane is now available. According to news originating from Xuzhou, People’s Republic of China, by VerticalNews correspondents, research stated, “Coal permeability and in-situ stress state are important parameters for coalbed methane (CBM) exploration and development; however, the distribution pattern of the Upper Permian CBM reservoir permeability is poorly understood in the western Guizhou region, SW China. In the present study, based on measured injection/falloff and in-situ stress data in the Upper Permian coal seams of western Guizhou region, the present-day in-situ stress field, and its correlation with coal permeability were investigated.”
Financial supporters for this research include National Science and Technology Major Project, National Natural Science Foundation of China, China Postdoctoral Science Foundation, Fundamental Research Funds for the Central Universities, Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD).
Our news journalists obtained a quote from the research from the China University of Mining and Technology, “The orientation of the horizontal maximum principal stress (S-Hmax) indicated a dominant similar to NW-SE-trending. In addition, the present-day in-situ stress field showed an important control on coal permeability. The permeability in the Upper Permian coal seams decreased exponentially with the increased effective in-situ stress magnitude. By utilizing the finite element method (FEM), the present-day in-situ stress field in the western Guizhou was numerically analyzed based on a geomechanical two-dimensional (2D) model. Distribution of coal permeability in the Upper Permian CBM reservoir was predicted based on the relationship between coal permeability and effective in-situ stress magnitude. The results indicated that, in the western Guizhou region, vertically, coal permeability was relatively high and widely distributed shallower than approximately 780m below ground level (bgl), whereas, it was extremely low and regularly varied with burial depth deeper than approximately 780m bgl. Laterally, the distribution pattern of coal permeability was characterized by strong heterogeneity due to well-developed faults and folds. High values of the Upper Permian coal permeability were located in regions around Nayong-Zhijin, Panxian-Anlong and along Shuicheng-Liuzhi- Ziyun.”
According to the news editors, the research concluded: “The present study may provide geological references for the CBM reservoir productivity and subsequent analysis (e.g., wellbore stability, hydraulic fracturing design, and fault reactivation studies, etc.) in the western Guizhou region.”
For more information on this research see: Characteristics of in-situ stress state and prediction of the permeability in the Upper Permian coalbed methane reservoir, western Guizhou region, SW China. Journal of Petroleum Science and Engineering , 2018;165():199-211. Journal of Petroleum Science and Engineering can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Journal of Petroleum Science and Engineering - http://www.journals.elsevier.com/journal-of-petroleum-science-and-engineering/)
The news correspondents report that additional information may be obtained from W. Ju, China Univ Min & Technol, Sch Resources & Geosci, Xuzhou 221116, People’s Republic of China. Additional authors for this research include Z.B. Yang, Y. Qin, T.S. Yi and Z.G. Zhang.
The direct object identifier (DOI) for that additional information is: https://doi.org/10.1016/j.petrol.2018.02.037. This DOI is a link to an online electronic document that is either free or for purchase, and can be your direct source for a journal article and its citation.
Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2018, NewsRx LLC
CITATION: (2018-05-08), Recent Research from China University of Mining and Technology Highlight Findings in Methane (Characteristics of in-situ stress state and prediction of the permeability in the Upper Permian coalbed methane reservoir, western Guizhou region, SW ...), China Weekly News, 469, ISSN: 1945-5976, BUTTER® ID: 015645781
From the newsletter China Weekly News.
https://www.newsrx.com/Butter/#!Search:a=15645781
This is a NewsRx® article created by NewsRx® and posted by NewsRx®. As proof that we are NewsRx® posting NewsRx® content, we have added a link to this steemit page on our main corporate website. The link is at the bottom left under "site links" at https://www.newsrx.com/NewsRxCorp/.
We have been in business for more than 20 years and our full contact information is available on our main corporate website.
We only upvote our posts after at least one other user has upvoted the article to increase the curation awards of upvoters.
NewsRx® offers 195 weekly newsletters providing comprehensive information on all professional topics, ranging from health, pharma and life science to business, tech, energy, law, and finance. Our newsletters report only the most relevant and authoritative information from qualified sources.
@newsrx you're on the @abusereports naughty list!
If you do not stop, your account will be rendered invisible on Steemit. Bad Steemian! Bad!
Downvoting a post can decrease pending rewards and make it less visible. Common reasons:
Submit