At the Changning block and at Luzhou block, genetic mechanism of low-resistivity shale its impact on reservoir quality are currently a hot topic world-wide scale. Shale with resistivity lower than 20 Ω·m is widely developed Wufeng-Longmaxi Formation in Southern Sichuan Basin, bringing considerable challenge for prediction using electromagnetic method. This paper discusses mechanisms qualities t...

China hosts rich shale gas resources. The Longmaxi Formation (LF) in the Sichuan Basin is one of important regions for exploration and extraction. Here, we investigate pore structure factors influencing gas-bearing characteristics pores reservoirs LF. We employed scanning electron microscopy (SEM), X-ray diffraction analysis (XRD), content testing, saturation testing based on nuclear magnetic r...

As an essential component in shale, OM (organic matter) grains and their arrangements may play roles affecting the anisotropy of reservoir. However, are commonly treated as evenly distributed isotropic medium current studies, few works have been done to investigate detailed arrangement characteristics. In this study, terrestrial marine shale samples were collected from three different plays Chi...

In order to analyze the organic matter (OM) composition, this study carefully identified OM types of 66 samples from Well A in Dingshan area under microscope, and made an effort obtain semi-quantitative statistics contents different bio-precursor derived OM. The results content obtained microscope showed a strong positive relationship (R2 = 0.85) with TOC analyzed by carbon–sulfur analyzer. con...