Experimental Study of Induced Polarization Effect in Unconventional Reservoir Rocks

• 作者: Haiyan Fu Michael S. Zhdanov Vladimir Burtman
• 来源期刊: 地质材料(英文)
• 学科: 地球科学
• 关键词: UNCONVENTIONAL Energy RESOURCES EM EXPLORATION Induced POLARIZATION Effective MEDIUM
• 年，卷（期）: dzclyw_2014,（4）
• 页码范围: 117-128
• 页数: 12页
• 分类号: P61

摘要

Unconventional hydrocarbon reserves substantially surpass those of conventional resources and therefore are extremely economically attractive. However, exploration and production of uncon-ventional reserves is challenging. This paper demonstrates that one can observe significant induced polarization effects in shale reservoir rocks, which can be used in exploration for unconventional reserves. The generalized effective-medium theory of induced polarization (GEMTIP) was used to model the complex resistivity of shale rocks. We demonstrate that GEMTIP modeling provides an evaluation of mineral composition and volume fractions in rock samples. We have conducted spectral induced polarization (IP) measurements using different types of shale rocks to test the feasibility of the IP method and GEMTIP modeling for studying unconventional hydrocarbon (HC) reservoir rocks.