Study on the Feasibility of SRV in Coal Reservoir

Abstract:

In our country there is plenty of CBM (coalbed methane), but the state of CBM itself, unique output mechanism and low saturation, low permeability, low reservoir pressure and high gas content, et al. determine the low efficiency of it, so in order to improve CBM recovery, combined with the successful experience of north American shale gas reservoir by SRV(stimulated reservoir volume), the writer summarizes the implementation of SRV, deeply analyzes effectiveness and limitations of this new technology in CBM development. The results of practical research and theoretical analysis show that SRV in the coal reservoir can achieve the desired effect on the condition that there are great quantity of natural fractures, joints and bedding, weak structure surface development in the reservoir, the rock brittleness index is greater than 40 and horizontal principal stress difference is relatively smaller. Finally, simulating a well’s condition by the MEYER software, the result shows that SRV is feasible in coal reservoir, which will create important guiding significance and practical value for the exploration of CBM.

• Periodical: Advanced Materials Research (Volumes 986-987)
• Pages: 734-737
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.986-987.734
• Online since: July 2014
• Authors: Lin Lin Cheng*, Yuan Fang Cheng, Chong Chen, Dong Feng Zhu, Wen Biao Deng
• Keywords: Brittleness Index, CBM, In Situ Stress, Natural Fracture, SRV

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