碳酸盐岩缝洞型油藏注水井储量损失原因及治理对策——以塔河油田A区为例  

Reasons for reserve losses of injection wells in Carbonate fractured-vuggy reservoirs and countermeasures for treatment:a case study of Block A in Tahe Oilfield

作　　者：郭媛[1] GUO Yuan(No.2 Oil Production Plant of of Northwest Oilfield Company,SINOPEC,Luntai 841604,Xinjiang,China)

机构地区：[1]中国石化西北油田分公司采油二厂,新疆轮台841604

出　　处：《石油地质与工程》2024年第1期104-109,共6页Petroleum Geology and Engineering

摘　　要：注水替油为塔河油田缝洞型油藏稳产的重要方式之一,近年来,注水替油失效井占比逐年提升,注水井储量损失问题日益凸显。根据单井生产特征和地质特征,通过能量指示曲线、注水指示曲线定量化分析各阶段储量变化,动静态结合并融合数模、建模一体化技术,分析了储量损失的本质原因,并针对不同储量损失类型提出不同的治理对策,恢复失控储量,提高产能。储量损失主要分为远端储量损失和体内储量损失两大类,其中,针对远端储量损失以恢复远端供液为目标,针对体内储量损失以扩大井周动用为目标。实际治理效果与数模预测方案吻合,治理效果显著。Water flooding to replace oil is one of the important ways to stabilize the production of fracture-vuggy reservoirs in Tahe Oilfield.In recent years,the proportion of water injection wells that fail to replace oil has been increasing year by year,and the reserve losses in water injection wells has become prominent.Based on the production characteristics and geological characteristics of single wells,the quantitative analysis of reserve changes in each stage is carried out through energy indicator curves and water injection indicator curves.The dynamic and static combination,and integration of geological modeling and numerical simulation are used to analyze the reasons for reserve losses.According to different types of reserves losses,different countermeasures are put forward to recover out-of-control reserves and increase production capacity.Reserve losses are mainly divided into two categories:remote reserve losses and internal reserve losses.As for the remote reserve losses,the goal is to restore the remote fluid supply,while for the internal reserves losses,the goal is to expand the production reserves around the well.The actual treatment effect is consistent with the prediction scheme of numerical simulation,and the treatment effect is good.

关 键 词：塔河油田 缝洞型油藏 定量化分析 建模数模一体化 储量损失 

分 类 号：TE313.3[石油与天然气工程—油气田开发工程]