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水力压裂至今一直是低孔渗储层改造的最有效措施。为了提高低孔渗油田压裂开发的整体效益和效果,为油层改造有针对性地提供施工层位和准确的储层参数,本文以胜利油气区渤南-孤北地区中生界、上古生界的低孔低渗储层为研究目标,探索、研究偶极横波测井资料在低孔低渗储层评价及改造中发挥的作用。本文充分利用偶极横波测井资料提供的纵、横波数据,结合其他常规测井资料及压裂、试油资料,建立适合本区低孔低渗油藏特性的岩石力学参数计算模型和压裂预测模型,对所改造层位进行压裂高度及施工压力参数预测,为优选压裂层位和方案设计提供依据。现场应用表明,本文提出的方法预测结果与现场压裂、试油验证结果一致性较好。
Hydraulic fracturing has so far been the most effective measure to retrofit low porosity and permeability reservoirs. In order to improve the overall efficiency and effectiveness of fracturing in low porosity and permeability oilfields and to provide targeted reservoir strata and accurate reservoir parameters for oilfield reconstruction, this paper takes the Mesozoic and Paleozoic in the Bonan-Gubei area of Shengli oil and gas region, Low porosity and low permeability reservoirs as research objectives, to explore and study the role of dipole transverse shear log data in the evaluation and reconstruction of low porosity and low permeability reservoirs. This paper makes full use of the longitudinal and transverse wave data provided by dipole-S-wave log data, combined with other conventional well logging data and fracturing and oil testing data to establish a rock mechanics parameter calculation model and fracturing Prediction model, predict the fracturing height and construction pressure parameters of the altered horizon, and provide the basis for optimizing the fracturing horizon and scheme design. Field application shows that the proposed method proposed in this paper is in good agreement with the field fracturing and oil testing.