断棱刻画在沈家铺油田油藏描述中的应用

Application of fault edge depiction in reservoir description of Shenjiapu Oilfield

孙建 季岭 王庆魁 何娇娇 吕中锋

中国石油大港油田公司第三采油厂，河北 沧州 061035

No.3 Oil Production Plant, Dagang Oilfield Company, PetroChina, Cangzhou 061035, China

在黄骅坳陷孔南地区沈家铺油田油藏描述中，将钻井、地震、建模、动态分析多种技术相结合，对目的层断棱进行精细刻画。通过密井网的井震联合进行精细地层划分对比，确定井上断点位置；利用多种地震属性识别断裂系统，并加大地震测线解释密度，结合生产动态资料分析，进行断层精细刻画及层位追踪，确定断层面的形态；将地震解释成果直接输入到建模软件中，快速建立起高精度的三维断层模型，依据密井网单砂层划分结果绘制微构造图，并确定单砂层在断层面的交线位置，从而精细刻画断棱的形态。现场应用效果表明，运用该方法进行断棱刻画，解释精度高，能为断块开发调整提供可靠依据。

In the reservoir description of Shenjiapu Oilfield in Kongnan Area of Huanghua Depression, the formation fault edges are fine depicted by the combination of drilling, seismic, and modeling technologies with dynamic analysis. According to the data of dense well pattern and combination of well and seismic data, the formation correlations are carried on elaborately and the position of fault point is located. Using many kinds of seismic attributes, faults system can be distinguished. Using dense seismic interpretation and combining with field performance data, faults can be described in detail and fault plane pattern can be ascertained. The seismic interpretation results are put directly into the modeling software and 3D fault model is built. The micro structure is mapped according to the results of single sand layers of dense well pattern and the line position of single sand layer on fault planes is determined, then the form of fault edge is fine depicted. The field application results show that the method of fault edge depiction has high accuracy and it can provide reliable basis for reservoir development and adjustment.

10.6056/dkyqt201405018