摘要
塔中 4油田的油气来自于满加尔坳陷下古生界烃源岩和塔中地区中上奥陶统烃源岩 ,天然气主要来源于寒武系—下奥陶统烃源岩。石炭系自上而下有三套储盖组合 :含灰岩段和CI储盖组合 ;中泥岩段和CⅡ储盖组合 ;下泥岩段和CⅢ储盖组合。塔中 4油田最初形成于晚海西期 ,燕山期经历了又一次重要的成藏过程 ,喜山期还有一次改造再分配的过程。塔中 4井的成功是在大漠腹地寻找油气树立的一座丰碑。正确认识塔中
The oil and gas of Tz4 oil field mainly comes f ro m the source rock of lower Paleozoic erathem in Manjiaer Depression and middle a nd upper Ordovician in central Tarim Basin. The natural gas mainly comes from th e sourc erock of Cambrian system and lower Ordovician series. There are three re servoir and caprock assemblages in Carboniferous system from above to below: lim y rock member and C Ⅰ assemblage, middle shale member and C Ⅱ assembla ge , lower shale member and C Ⅲ assemblage. Tz4 oil field is originally form ed at later Hercynian. Then it experienced destruction at Yanshanian. Last it wa s reconstructed and reallocated in Himalayan. The success of Tz4 well is a miles tone in finding oil and gas in the hinterland of Tarim Desert. It is of great si gnificance for the analysis of the petroleum accumulation and reallocation proce ss of middle Tarim area as well as the whole craton area of Tarim Basin to corre ctly comprehend the dynamic process of petroleum accumulation of Tz4 oil field.
出处
《新疆石油学院学报》
2003年第4期1-4,共4页
Journal of Xinjiang Petroleum Institute
关键词
塔中4油田
石炭系
油气成藏
Tz4 oil field
Carboniferous
reservoir accumu lation
