测试压裂分析技术在渤海B油田的应用  

Application of Mini-frac Analytical Technique in B Oilfield of Bohai

作　　者：张彬奇 

机构地区：[1]中海石油〈中国〉有限公司天津分公司,天津300452

出　　处：《探矿工程（岩土钻掘工程）》2017年第6期33-37,共5页Exploration Engineering:Rock & Soil Drilling and Tunneling

基　　金：国家科技重大专项"海上稠油油田高效开发示范工程"(编号:2011ZX05057)

摘　　要：测试压裂分析技术是水力压裂施工前获取储层物性参数和分析压裂液性质的手段,是压裂施工顺利进行的技术保证。结合渤海某油田沙河街油藏压裂工程,介绍了测试压裂应用过程和理论基础,并简单介绍几种求取地层闭合压力的数学方法。闭合压力是压裂施工关键参数之一,不同数学计算方法推导出的闭合压力不尽相同,现场压裂工程师要根据实际测试结果选取可靠的数值。压降曲线拟合是在模型中反推出地层关键参数的方法,拟合完毕即得到针对施工地层的压裂模型,在此基础上进行主压裂设计和裂缝预测是较为准确的,以此进行施工也是安全的。The mini-frac analytical technique is a means of obtaining the reservoir physical parameters and the analysis on fracturing fluid properties before the hydraulic fracturing construction and is also the technical assurance of smooth fracturing construction. This paper introduces the application process and theoretical basis of the test fracturing from the field con- struction work and briefly introduces several mathematical methods to find the formation closure pressure. Closure pressure is one of the key parameters of fracturing construction, which are not the same for being derived from different mathematical methods; the reliable values should be selected according to the actual test results. The pressure drop curve fitting is a method to reversely calculate the key formation parameters in the model. After fitting, the fracturing model for the construc- tion stratum is obtained. On this basis, the main fracturing design and the fracture prediction are relatively accurate, the construction is also safe.

关 键 词：高压低渗油藏 水力压裂 测试压裂 挤注测试 裂缝闭合压力 

分 类 号：TE242[石油与天然气工程—油气井工程]