水平井蒸汽驱温度场与黏度场平面物理模拟

Experimental Investigation of Temperature and Viscosity Fields of Steam Flooding Development of Horizontal Wells

罗艳艳 程林松 高山 王宏远

Luo Yanyan Cheng Linsong Gao Shan Wang Hongyuan

中国石油大学(北京)石油工程学院,北京 102249; 石油工程教育部重点实验室(中国石油大学(北京)),北京 102249; 中国石油辽河油田分公司SAGD开发项目管理部,辽宁盘锦 124010

College of Petroleum Engineering, China University of Petroleum(Beijing), Beijing, 102249, China; MOE Key Laboratory of Petroleum Engineering(China University of Petroleum(Beijing)), Beijing, 102249, China; SAGD Project Managing Department of Liaohe Oilfield Company, PetroChina, Panjin, Liaoning, 124010, China

为了明确均质与非均质储层水平井正对排状井网蒸汽驱过程中温度场和黏度场的变化规律,进行了驱替实验研究。利用实验室平面物理模型中布置的高精度温度传感器,测量了驱替过程中不同时间点模型温度场的分布,得到了水平井正对排状井网蒸汽驱时的蒸汽腔形状、蒸气腔发育规律、含水上升规律及最终采收率。根据黏温关系,利用插值得到了黏度场分布及变化规律。实验对比了水平注采井间存在高渗带时,高渗带对蒸汽腔发育、含水上升规律和最终采收率的影响。实验结果表明,存在高渗带且低渗带与高渗带渗透率之比为1∶8时,均质模型最终采收率比非均质模型高17.14%。

Displacement experiments were carried out in order to clarify the change of temperature and viscosity fields in the process of steam flooding development of horizontal wells in row pattern of homogeneous and heterogeneous reservoirs.Temperature distribution in this model at different time during displacement process was measured with high-precision temperature sensor put in the plane physical model.And the steam chamber shape,steam chamber growth rule,water-cut ascending rule and the ultimate recovery of horizontal wells during steaming flooding in row pattern were obtained.According to the viscosity-temperature relationship from the model,an interpolation method can be employed to obtain the distribution and change of viscosity field.The effects of high permeability zone on temperature field,water cut ascending and ultimate recovery are compared.The results showed that the ultimate recovery of homogeneous model is 17.14% greater than that of heterogeneous one when high permeability zones exist and the ratio of low-permeability zone to high-permeability zone is 1∶8.The experiment results can provide a guideline in the development of heavy oil reservoirs.

国家重点基础研究发展计划("973"计划)项目"CO2驱油中的渗流力学理论"(编号:2011CB707305)、国家科技重大专项"海上稠油热采综合评价方法研究"(编号:2011ZX05024-005-006)和"薄层稠油和超稠油开发技术"(编号:2011ZX05012-004)部分内容。

https://doi.org/10.3969/j.issn.1001-0890.2012.01.015