缝洞型碳酸盐岩油藏储层类型动静态识别方法——以塔里木盆地奥陶系为例

发布时间：2018-12-30 14:06

【摘要】：塔里木盆地奥陶系碳酸盐岩储层非均质性和各向异性极强,成因机理复杂,不同成因、机理及尺度的孔、洞、缝常伴生发育,单一的静态方法(钻井、岩心、测井和地震等)探测范围较小及精度不够准确,难以精细划分储层类型。在以动窥静,动静结合的思路下,深入剖析了145口井的动静态资料及其在不同储层类型中的响应特征,最终确定以试井渗透率、井储系数、井控半径、酸压停泵压力、累积产液压降曲线、钻井放空漏失、地震反射特征和测井曲线为主体,建立碳酸盐岩油藏储层类型识别模板,并划分出3种储层类型,即洞穴+裂缝孔洞型、洞穴型和裂缝-孔洞型。该方法克服了以往依靠单因素识别储层类型的局限性,拓展了动静态方法结合的研究思路,为碳酸盐岩油藏储层类型的识别提供了依据。
[Abstract]:Ordovician carbonate reservoir in Tarim Basin has strong heterogeneity and anisotropy, complex genetic mechanism, various genesis, mechanism and scale of pores, holes and fractures, and single static method (drilling, core, core). The range of logging and seismic exploration is small and the precision is not accurate, it is difficult to classify reservoir types accurately. In this paper, the dynamic and static data of 145 wells and their response characteristics in different reservoir types are deeply analyzed under the idea of dynamic peep-static, static and static combination. Finally, well test permeability, well reservoir coefficient, well control radius, acid pressure stop pump pressure are determined. Based on the cumulative hydraulic pressure drop curve, drilling leakage, seismic reflection characteristics and logging curves, the identification template of carbonate reservoir type is established, and three reservoir types, i.e. cave fracture porosity type, are divided into three types. Cave type and fissure-hole type. This method overcomes the limitation of single factor identification of reservoir types in the past, expands the research idea of combining dynamic and static methods, and provides the basis for the identification of carbonate reservoir types.
【作者单位】：山东胜软科技股份有限公司胜软油气勘探开发研究院;
【基金】：国家重大科技专项“大型油气田及煤层气开发”(编号:2011ZX05004) 中国石油天然气股份公司重大科技专项“塔北碳酸盐岩油藏重大开发试验”(编号:2014E-2015)联合资助
【分类号】：P618.13

【相似文献】