The Mechanism of Secondary Pores in the Reservoir of Funing Formation in Gaoyou Depression of Subei Basin
- Received Date: 2004-07-17
- Rev Recd Date: 2004-10-18
- Publish Date: 2005-09-10
-
Key words:
- Gaoyou dep ression /
- low permeability /
- secondary pores /
- formation /
- preservation
Abstract: The secondary pores that account for a great p roportion of the Funing Formation in Gaoyou Depression is the main part of reservoir spaces. The development mechanism of secondary pores may have three types: the first is the leakage ofwater from ground; the second is dissolution from the thermal evolution of organic matter in mudstones; the third is dissolution related to the clays. The interactions of all factors have important effect on secondary pores.Based on the analysis ofmechanism of secondary pore, the method used to calculate secondary pore is got from the datum of AC, EDN, and CNL. Above of all, the formation of Fu 3 Member is the best in Funing Formation and the secondary porosity is the highest, so the area to be exp lored should be located in the region from the south of Shanian to the north of Fumin.
| Citation: | SHI Zheng-fei, ZHANG Zhen-cheng, YE Shao-dong, CAI Xiao-ming, SUN Jian-meng. The Mechanism of Secondary Pores in the Reservoir of Funing Formation in Gaoyou Depression of Subei Basin[J]. Acta Sedimentologica Sinica, 2005, 23(3): 429-436.
|
DownLoad: