QHD32-6堵水酸化联作技术选编.ppt

堵水酸化联作工艺技术研究 Research on Water Shutoff－Acidizing Joint Operation Technology in QHD32-6 Oil Field ;概述 Introduction 储层特点及伤害因素、开采现状、 Reservoir Character，Formation Damage Factors and Production Behavior 堵水酸化酸型及浓度确定 Determining of Acid type and Concentration 堵水酸化添加剂单项性能评价、酸液配方体系优选、性能评价 Acidizing additives perfomance evaluation, Acid formulae design and its performance evaluation 酸流动效果评价 Acid flow test 堵剂体系合成、性能评价和流动效果评价 Development of water shutoff agent，perfomance evaluation and core flow test 堵水酸化注入强度和速度研究 Determining of Injection Rate and Intensity 施工参数选择 Determining of Job parameters 实施工艺及方案 Operation Technology and job Programme 结论Conclusions;概述－立项背景Backgroud;概述－主要工作Main work of the study;储层分析及伤害机理 堵水酸化堵剂体系研究 堵剂岩心流动试验研究 堵水酸化酸型、添加剂 配方体系研究 岩心酸流动试验研究 注入强度和速度研究 堵水酸化实施工艺研究 堵液候凝条件和关井条件研究 实施方案研究;概述－技术关键Technical Keys;概述－研究思路Research Approach;储层特点、伤害因素Reservoir Behavoir，Factors of Formation Damage;储层岩芯电镜扫描分析The SEM Analysis of Reservoir Cores;?一定水敏性伤害 晶格膨胀或分散堵塞孔喉 Water Sensitivity Damage ?一定流速敏感性 微粒运移 Velocity Sensitivity ?一定盐敏性 粘土矿物缩聚、分散、脱落，运移堵塞孔喉 Salt Sensitivity ?一定碱敏性 粘土矿物解离和胶结物溶解后释放出微粒 Alkali Sensitivity ?酸敏性 产生氢氧化铁沉淀 Acid Sensitivity ?较强的出砂趋势 Sanding Tendency;储层伤害机理 The Mechanism of Formation Damage;开采特点Production Behaviour;出水类型－边水推进Type of Water Out－Edge Water;出水类型－边水推进Type of Water Out－Edge Water;出水类型－边水推进Type of Water Out－Edge Water;出水类型－底水锥进Type of Water Out－Coning of Bottom Water;出水类型－底水锥进Type of Water Out－Coning of Bottom Water;出水类型－底水锥进Type of Water Out－Coning of Bottom Water;出水类型－水窜？Type of Water Out－water Breakthrough ;已采取的增产措施Stimulations have Practiced;(1) QHD32-6油田地质条件复杂，多断层、河流相沉积、岩石疏松、多油水系统、重(稠）油。整个构造具有埋藏浅；幅度低，规模大，断层发育和局部圈闭多等特点。 The geologic setting of QHD32-6 Oil Field is complicated which is much fault, fluvial facies, unconsolidated rock, multi-oil-water system and heavy crude. The whole structure has the property of shallow depth, small range, large scale, growth fault, and p