西南石油大学学报（自然科学版）2024，Vol.46Issue(4)：65-73,9.DOI:10.11885/j.issn.1674-5086.2024.04.16.02
超深缝洞型碳酸盐岩储层精准定位技术探索实践
Technology for Precise Positioning of Ultra-deep Fracture-porous Carbonate Reservoirs
摘要
Abstract
The fracture-porous carbonate reservoirs in the Tarim Basin is deeply buried,and have small storage spaces and strong heterogeneity,bringing difficulties to accurate location of reservoirs and precise positioning of reservoir spaces.This poses great challenges for well-targeting and optimizing drilling trajectories,and limits well deployment and rapid production.To address these challenges,a study on precise reservoir positioning driven by VSP(Vertical Seismic Profile)was conducted using pre-stacked seismic data such as gathers and velocity fields,as well as VSP data collected during drilling operations.By optimizing the processing work-flow,the timeliness of delivering results within 72 hours was ensured,and precise positioning of the reservoir was achieved without affecting the drilling speed.This method has been successfully applied in the real-time tracking of more than 120 wells,resulting in an improvement in the direct drilling encounter rate of the reservoirs from 60％to 80％,and increasing in the success rate of drilling to over 90％.It provides valuable insights for reservoir prediction and precise positioning in similar fracture-porous reservoirs.关键词
缝洞型/碳酸盐岩/VSP/驱动处理/偏移/归位Key words
fracture-porous/carbonate/VSP/driven processing/migration/positioning分类
能源科技引用本文复制引用
李国会,郭越,孙甲庆,丁尧..超深缝洞型碳酸盐岩储层精准定位技术探索实践[J].西南石油大学学报（自然科学版）,2024,46(4):65-73,9.基金项目
中国石油重大科技专项(2023ZZ16YJ02) （2023ZZ16YJ02）
