黔南-桂中地区泥盆系层序地层格架中的储集体特征研究

基金项目:

中国地质调查局《中国岩相古地理编图》(基[2009]01-12-13)

Reservoir characteristics within the Devonian sequence stratigraphic framework in the southern Guizhou-central Guangxi region

1. Chengdu Institute of Geology and Mineral Resources, Chengdu 610081, Sichuan, China;
2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059, Sichuan, China

摘要: 通过对黔南坳陷和桂中坳陷的地层对比和分析,识别出了8种层序界面标志,共划分两个超(二级)层序SS1和SS2,并讨论了各体系域特征。在层序格架中对研究区内的储集体类型进行了总结,主要包括生物礁(滩)储集体、白云岩储集体和缝洞型储集体等3种类型。对层序格架中储集体的成因类型进行了总结归纳:有利的储集体主要有TST礁滩灰岩储集体、HST礁滩灰岩、白云岩储集体。
- 黔南凹陷 /
- 桂中凹陷 /
- 泥盆系 /
- 层序地层格架 /
- 储集体
Abstract: Eight sequence boundaries are recognized for the South Guizhou depression and Central Guangxi depression,including two supersequences(second-order sequences) SS1 composed of lowstand systems tract(LST),transgressive systems tract(TST) and highstand systems tract(HST),and SS2 composed of transgressive systems tract(TST) and highstand systems tract(HST).The reservoir rocks within the above-mentioned sequence stratigraphic framework consist of organic reef(bank) reservoirs,dolostone reservoirs and fissure-type reservoirs.The favourable reservoir rocks include the organic reef(bank) limestone reservoirs in the transgressive systems tract,organic reef(bank) limestone reservoirs and dolostone reservoirs in the highstand systems tract.
- South Guizhou depression /
- Central Guangxi depression /
- Devonian /
- sequence stratigraphic framework /
- reservoir rock