石油科学通报2024，Vol.9Issue(3)：408-421,14.DOI:10.3969/j.issn.2096-1693.2024.03.030
哈拉哈塘油田塔河北区块奥陶系断裂发育特征及断控区储层类型与分布预测
Fault characteristics,reservoir types and distribution prediction in a fault-controlled area in the Ordovician strata of the Tahebei Block,Halahatang Oilfield
摘要
Abstract
The heterogeneity of Ordovician carbonate reservoirs in the Halahatang Oilfield,Tarim Basin is complex,so it is important to carry out evaluation and prediction research.Based on geological and seismic data from the Halahatang Oilfield,this paper studies carbonate fracture-vuggy reservoir location,reservoir spatial distribution,reservoir and fault matching relationship,and inter-well connectivity.On this basis,according to the actual drilling,logging data and production dynamic analysis,the fracture-cavity carving of carbonate reservoirs in the fault-controlled area is carried out.The results show that the fault system evolution of the Halahatang oilfield includes four stages:Early Caledonian to Middle Caledonian,Late Caledonian to Early Hercynian,Late Hercynian and Yanshan.Fault trends and multiple stages of fault development are the main controlling factors for the generation of the fault systems.The increase of the horizontal slip of the fault block will give the strike-slip faults better connectivity.The plane diffusing width of the fault is controlled by the intensity of fault activity and the development degree of deep through-source branch faults.In addition,in order to clarify the spatial morphology and distribution characteristics of carbonate reservoirs in buried hill karst areas,interlayer karst areas and fault-controlled karst areas,targeted reservoir prediction is carried out.Based on inversion results,multi-attribute comprehensive prediction is carried out by combining the data such as attributes,sedimentation and drilling.The prediction results show that the fracture zone in the buried-hill karst area of the Tahebei block of the Halahatang Oilfield has good overall source permeability,connectivity and diffusion-solubility,which is conducive to the formation of large-scale solution pore-fracture-cave reservoirs,and the plane distribution of the reservoirs is continuous with the best reservoir quality,which is the key area of oil and gas exploration and development in the future.The study reveals the development characteristics of Ordovician faults and the distribution areas of favorable reservoirs in the fault-controlled area of the Tahebei Block,Halahatang Oilfield,in order to provide a basis for effectively guiding carbonate oil and gas exploration and development in the deep-ultra-deep fault-controlled areas.关键词
奥陶系/断裂系统/碳酸盐岩/储层预测/哈拉哈塘油田Key words
Ordovician/fault system/carbonate/reservoir prediction/Halahatang Oilfield分类
天文与地球科学引用本文复制引用
陈利新,王胜雷,姜振学,朱光有,苏洲,侯佳凯..哈拉哈塘油田塔河北区块奥陶系断裂发育特征及断控区储层类型与分布预测[J].石油科学通报,2024,9(3):408-421,14.基金项目
国家科技重大专项"大型油气田及煤层气开发"课题"塔中、库车地区深层-超深层油气成藏过程及有利勘探目标"(2017ZX05008-004-001)资助 （2017ZX05008-004-001）
