Advance Search
WANG Yongjian, PAN Jianxu, LIU Xianwei. Study on comprehensive evaluation of low permeability sandstone reservoirs ofcoal-derived gas in Huaibei Coalfield[J]. COAL SCIENCE AND TECHNOLOGY, 2019, (5).
Citation: WANG Yongjian, PAN Jianxu, LIU Xianwei. Study on comprehensive evaluation of low permeability sandstone reservoirs ofcoal-derived gas in Huaibei Coalfield[J]. COAL SCIENCE AND TECHNOLOGY, 2019, (5).

Study on comprehensive evaluation of low permeability sandstone reservoirs ofcoal-derived gas in Huaibei Coalfield

More Information
  • Available Online: April 02, 2023
  • Published Date: May 24, 2019
  • Coal-derived gas is an important supplement to natural gas resources. The Huaibei Coalfield is rich in coal-derived gas resources and has great exploration potential. However, the study of low permeability sandstone reservoirs is limited, and there is also less reservoir evaluation. In order to effectively evaluate sandstone low-porosity and low-permeability reservoirs of Shanxi Formation, Lower Shihezi Formation and Upper Shihezi Formation in Huaibei Coalfield, the sedimentary facies, pore permeability characteristics, pore structure, pore types and diagenesis were comprehensively evaluated by means of pore permeability test, rock slice analysis and scanning electron microscope. The results show that from the perspective of pore permeability and pore structure, the Upper Shihezi Formation is the best, followed by the Shanxi Formation, and the Lower Shihezi Formation is poor. From the perspective of the degree and type of pore development, the Upper Shihezi Formation has the most developed pores, mainly primary pore and secondary dissolution pore, followed by Shanxi Formation, mainly secondary dissolution pore, while the Lower Shihezi Formation has poor pore development. Comprehensive evaluation shows that sandstone reservoirs in Upper Shihezi Formation have the best development. Type Ⅰ reservoirs account for 22.65%, Type Ⅱ reservoirs account for 50.32%, and Type Ⅲ reservoirs represent 27.03%;This was followed by Shanxi sandstone reservoirs, where Type I reservoirs account for 21.7%, Type Ⅱ reservoirs account for 42.05%, and Type Ⅲ reservoirs shares another 36.25%; The sandstone reservoir of Lower Shihezi Formation is poorer, with Type Ⅰ reservoir accounting for 2.91%, Type Ⅱ reservoir accounting for 38.85%, and Type Ⅲ reservoir accounting for 58.24%.
  • Related Articles

    [1]CHENG Fangming, NAN Fan, LUO Zhenmin, KANG Xiaofeng. Research progress and development trend of gas explosion suppression materials and mechanism[J]. COAL SCIENCE AND TECHNOLOGY, 2021, 49(8): 114-124.
    [2]WANG Yan, LIN Sen, LI Zhong, LI Lu, WEN Xiaoping, JI Wentao. Research on synergistic effect of inert gas on methane explosion suppression performance of KHCO3 cold aerosol[J]. COAL SCIENCE AND TECHNOLOGY, 2021, 49(2): 145-152. DOI: 10.13199/j.cnki.cst.2021.02.018
    [3]HUANG Guangli, MA Xinghua, YAN Peng. Study on distribution laws of gas and hydrogen sulfide from coal seam affected by abandoned oil wells[J]. COAL SCIENCE AND TECHNOLOGY, 2020, 48(4).
    [4]WANG Yan, QI Yingquan, WEN Xiaoping, WANG Wei, GAN Xiangyang, PEI Bei, JI Wentao. Influence study of coal dust composition on the lower explosion limit of hybrid mixture of gas and coal dust[J]. COAL SCIENCE AND TECHNOLOGY, 2020, 48(2).
    [5]SI Junhong, XU Min, ZHENG Kaikai, CHU Tingxiang. Characteristics and early warning technology for gas-oil explosion inHuanglong Mining Area[J]. COAL SCIENCE AND TECHNOLOGY, 2019, (8).
    [6]LEI Hongyan. Experimental study on rapid determination of critical value of drilling cutting gas desorption index K1[J]. COAL SCIENCE AND TECHNOLOGY, 2019, (8).
    [7]Jia Baoshan Xiao Minghui Yin Bin Li Chunmiao Li Zongxiang Li Shouguo, . Symbolic associated gas of left coal oxidation in goaf affected to gas explosion[J]. COAL SCIENCE AND TECHNOLOGY, 2017, (4).
    [8]Wang Wencai Zhang Pei Ren Chunyu Shang Dong Guo Zhenkun Chen Zheng, . Experiment study and application of indicated gas determination to fire area in outcrop of coalfield[J]. COAL SCIENCE AND TECHNOLOGY, 2016, (3).
    [9]Shi Liang Yin Weifeng Wang Bin, . Practices on gas control based on CO2 blasting and permeability improvement technology[J]. COAL SCIENCE AND TECHNOLOGY, 2015, (12).
    [10]Analysis and Control of Harmful Gas Over Limit During Gateway Driving Along Goaf[J]. COAL SCIENCE AND TECHNOLOGY, 2011, (12).

Catalog

    Article views (116) PDF downloads (255) Cited by()
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return