Sequence Stratigraphy of the Palaeogene in the HGZ Area of Qaidam Basin  

作　　者：Wu Yinye Hou Yu＇an Guo Bincheng Cui Huajuan 

机构地区：[1]Research Institute of Petroleum Exploration and Development of PetroChina, Beijing 100083, China [2]China University of Geosciences, Beijing 100083, China

出　　处：《Petroleum Science》2007年第3期14-20,30,共8页石油科学（英文版）

基　　金：Supported by the Project of "Ktqq-2005-013" from PetroChina, China National Petroleum Corporation(CNPC)

摘　　要：Sequence stratigraphy can be used to predict the oil and gas reservoir bodies and to choose the oil targets. Fan delta and sublacustrine fan systems are developed in the HGZ Area, which is located in front of the Altun Mountain in the west of the Qaidam Basin. On the basis of seismic and well drilling data, the deposits in the area were studied by using sequence stratigraphy and reservoir prediction techniques. Various reservoir prediction techniques used under the constraint of high resolution sequence framework could help to improve the precision of reservoir prediction and to recognize the pinch out line of sand layers, the distribution of isolated sandstone bodies and the types of oil pools. The study of sequence stratigraphy makes reservoir prediction more effective by dividing different scales of sequences and distinguishing the system tracts and parasequence sets, and indicates the internal relationship between oil/gas and sedimentary bodies in different system tracts with evolution in time and space.Sequence stratigraphy can be used to predict the oil and gas reservoir bodies and to choose the oil targets. Fan delta and sublacustrine fan systems are developed in the HGZ Area, which is located in front of the Altun Mountain in the west of the Qaidam Basin. On the basis of seismic and well drilling data, the deposits in the area were studied by using sequence stratigraphy and reservoir prediction techniques. Various reservoir prediction techniques used under the constraint of high resolution sequence framework could help to improve the precision of reservoir prediction and to recognize the pinch out line of sand layers, the distribution of isolated sandstone bodies and the types of oil pools. The study of sequence stratigraphy makes reservoir prediction more effective by dividing different scales of sequences and distinguishing the system tracts and parasequence sets, and indicates the internal relationship between oil/gas and sedimentary bodies in different system tracts with evolution in time and space.

关 键 词：sequence stratigraphy RESERVOIR systems tract parasequence sets exploration targets Qaidam Basin 

分 类 号：P539.2[天文地球—古生物学与地层学]