Cross-well sand-body identification in the oilfield development late stage
XU Liheng1, MA Yaojun2,3, ZHU Suihui3,4, WANG Zengcun5, LI Zhengxi5, and LIANG Yu1
1. Research Institute of Exploration and Development, Daqing Oilfield Company, PetroChina, Daqing, Heilongjiang 163712, China; 2. Oil Production Plant 5, Qinghai Oilfield Company, PetroChina, Delingha, Qinghai 816400, China; 3. School of Geosciences and Technology, Southwest Petroleum University, Chengdu, Sichuan 610500, China; 4. Northwest Sichuan Gas Field, Southwest Oil and Gas Field Company, PetroChina, Mianyang, Sichuan 621700, China; 5. Laojunmiao Production Plant, Yumen Oilfield Company, PetroChina, Jiuquan, Gansu 735019, China
Abstract：After more than 50 years of the exploration and development,Daqing Changyuan Oilfield is now in the stage of dense well pattern and single-bed production.The development geological task is to identify the connectivity of sand bodies and the narrow channel boundary between wells.Based on high-density 3D seismic data and well development information,a sand body prediction model for typical Changyuan Block is established with integrated well-seismic data inversion.Single-channel boundary of composite sands and narrow channel sandbodies between wells are identified by the geologic statistics inversion.It is concluded that the integrated well-seismic data inversion synthesizes the advantages of vertical and lateral high density information,and it is suitable for cross-well sand body identification in the oilfield development late stage.
徐立恒, 马耀军, 朱遂珲, 王增存, 李正喜, 梁宇. 油田开发后期井间砂体识别[J]. 石油地球物理勘探, 2019, 54(2): 390-397.
XU Liheng, MA Yaojun, ZHU Suihui, WANG Zengcun, LI Zhengxi, and LIANG Yu. Cross-well sand-body identification in the oilfield development late stage. Oil Geophysical Prospecting, 2019, 54(2): 390-397.
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