王海峰, 范廷恩, 胡光义, 何明薇, 张显文, 高玉飞. 海上油田开发中后期砂岩储层构型剖析与表征[J]. 海洋地质与第四纪地质, 2020, 40(1): 114-125. DOI: 10.16562/j.cnki.0256-1492.2018111801
引用本文: 王海峰, 范廷恩, 胡光义, 何明薇, 张显文, 高玉飞. 海上油田开发中后期砂岩储层构型剖析与表征[J]. 海洋地质与第四纪地质, 2020, 40(1): 114-125. DOI: 10.16562/j.cnki.0256-1492.2018111801
WANG Haifeng, FAN Tingen, HU Guangyi, HE Mingwei, ZHANG Xianwen, GAO Yufei. Analysis and characterization of sandstone reservoir architecture in middle and late stages of offshore oilfield development[J]. Marine Geology & Quaternary Geology, 2020, 40(1): 114-125. DOI: 10.16562/j.cnki.0256-1492.2018111801
Citation: WANG Haifeng, FAN Tingen, HU Guangyi, HE Mingwei, ZHANG Xianwen, GAO Yufei. Analysis and characterization of sandstone reservoir architecture in middle and late stages of offshore oilfield development[J]. Marine Geology & Quaternary Geology, 2020, 40(1): 114-125. DOI: 10.16562/j.cnki.0256-1492.2018111801

海上油田开发中后期砂岩储层构型剖析与表征

Analysis and characterization of sandstone reservoir architecture in middle and late stages of offshore oilfield development

  • 摘要: 在油田开发中后期,砂层组或小层级别的砂岩储层内部构型剖析与表征逐渐成为储层研究的重点。在少井条件下充分挖掘地震资料信息,建立储层内部结构特征的地震响应关系,发展“以地震信息为导向,井震联合”的方法,成为海上油田储层构型研究的有效途径。通过井点处曲线形态、砂体厚度、垂向高程差异等信息对砂体期次的刻画,以及结构类敏感地震属性对砂体边界的预测,开展复合砂体的垂向分期与侧向划界,能够实现储层构型的剖析。结合海上油田的资料基础和开发特点,形成一套储层构型的结构和成因表征方法:分析沉积类型及其对砂体展布的控制机理,构建沉积模式;优选敏感地震属性,预测储层内部结构;标定井震资料的地质含义并转化为合理参数;综合多信息编制地质图件。

     

    Abstract: In the middle and late stages of oilfield development, analysis of internal architecture and characterization of sandstone reservoirs in a sandy sequence are significant to reservoir research. Under the circumstance of less well data, the effective way for offshore oilfield to carry out reservoir architecture research is to follow the principle of “well-seismic integration” “under the guidance of seismic survey” , established on the seismic response model to the internal structure characteristics of reservoirs. In order to effectively carry out reservoir research, it is required to make clear the vertical division of sequences using the shape of logging curves, sand body thickness and vertical elevation difference, and lateral recognition of boundaries for composite sand bodies, which are defined with structure sensitive seismic attributes. Combined with the data from development stage, we proposed in this paper a set of reservoir structure characterization and genetic characterization methods. Firstly, sedimentary models are constructed by revealing the types of sediments and controlling mechanism of sand body distribution; Secondly, internal structure of the reservoir is predicted by comparing and optimizing sensitive seismic attributes; Thirdly, well seismic data is transformed into reasonable parameters with clear geological meanings; Finally, geological maps are compiled by integration of multiple factors.

     

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