Sinian gas sources and effectiveness of primary gas-bearing system in Sichuan Basin, SW China

ZHAO Wenzhi,XIE Zengye,WANG Xiaomei,SHEN Anjiang,WEI Guoqi,WANG Zecheng,WANG Kun

Fig. 6. Source-reservoir-seal assemblages in the Sinian-Cambrian Systems of central Sichuan Basin. Z1d—Sinian Doushantuo Formation; Z2dn1+2—Deng1 and Deng2 Members in the Sinian Dengying Formation; Z2dn3—Deng3 Member in the Sinian Dengying Formation; Z2dn4—Deng4 Member in the Sinian Dengying Formation; —C1q—Lower Cambrian Qiongzhusi Formation; —C1c—Lower Cambrian Canglangpu Formation; —C1l—Lower Cambrian Longwangmiao Formation; —C2g—Middle Cambrian Gaotai Formation; —C3x—O—Upper Cambrian Xixiangchi Formation-Ordovician System; P1l—Lower Permian Liangshan Formation; P1q—P1m—Lower Permian Qixia and Maokou Formations; P2l—Upper Permian Longtan Formation.