oil gravity meaning in English

油比重

Tncyclic diterpanes c20 , c21 and c23 distribution also has relationship with oil gravity , oil and gas production , as well as oil pool formation timing and oil source . rising - patterned oil originates from fengcheng formation , while peak - patterned oil from xiawuerhe formation . four types of migration and accumulation models are put forward : ( l ) fault controlled migration and accumulation along ridge far from source region ; ( 2 ) fault and unconformity controlled migration and accumulation around source region ; ( 3 ) fault controlled migration and accumulation in the slopes within source region ; ( 4 ) biogenetic and low temperature catalyzed gas migration and accumulation in middle and shallow formation
受挤压背景控制，研究区内海西期形成的断裂，全部为逆断裂，活动期长，可以延续到印支期和燕山期，断开层位可以从石炭系上延至诛罗系，它们对区域构造、沉积、油气运聚有显著的控制作用；而燕山期形成的断裂多为小型正断裂，部分为株罗系和白要系内部断裂，部分从徐罗系断至白圣系。