水敏性低渗透稠油薄油层压裂改造方法  

Fracturing Treatment of Water-Sensitive Low-Permeability Heavy Oil Thin-Layer Reservoir

作　　者：蒋海岩[1] 刘召[1] 袁士宝[1] 田相雷 张丁涌 

机构地区：[1]西安石油大学石油工程学院,陕西西安710065 [2]中石化胜利油田分公司,山东东营257068

出　　处：《新疆大学学报（自然科学版）》2017年第3期299-302,共4页Journal of Xinjiang University(Natural Science Edition)

基　　金：国家自然科学基金资助(51674198);陕西省自然基金(2016JM5031);陕西省教育厅科学研究计划项目(16JS095)

摘　　要：低渗敏感稠油油藏存在着原油流动性差、地层容易受伤害的特点,采用常规开采模式开发后,产液量下降快、含水高,后期注汽压力高、质量差,导致开发效果不理想.针对该类油藏特点及开发历程,本文进行岩石力学敏感性分析,然后结合数值模拟以及前期改造经验开展论证,最终确定以压裂为主并结合防砂的工艺手段,结合油藏特征优化施工参数与压裂体系配方,形成压裂+防砂复合改造技术模式.在现河该类区块施工后实现了原油增产、油层改造的效果,为该类油藏的开发提供借鉴经验.Low permeable and sensitive heavy oil reservoir has some characteristics including large crude oil viscosity, particularly vulnerable. After the conventional production pattern, production effects were not desirable for the quickly decreasing fluid production, high water cut, high injection pressure and poor quality in the late stage of steaming. According to the oil reservoir characteristics and development history, sensitivity analysis should primarily be carried out, and demonstration should be launched combined with numerical simulation and the early reconstruction experience. Ultimately, fracturing and sand control technology model that determine the main fracturing and sand control technology, combined with optimization of construction parameters and fracturing system formula of reservoir characteristics will be formed. After the construction of this kind of block of Xianhe, the effect of oil production and oil layer reconstruction has been realized,which can provide reference for the development of such reservoirs.

关 键 词：低渗油藏 稠油 压裂防砂 油层改造 

分 类 号：TE345[石油与天然气工程—油气田开发工程]