缅甸伊洛瓦底盆地探井压裂测试实践及认识

Myanmar Irrawaddy Basin Exploratory Testing Practices and Knowledge of Fracturing

在伊洛瓦底盆地缅甸国家石油公司的首次探井压裂工作中,确定了工区内的走滑挤压地应力状态(Ⅲ型);根据小型压裂测试,调整了主加砂压裂方案,在DST3层设计中全程组合陶粒方案,保障加砂作业的安全顺利实施;压后产出了高凝、高粘中质油,认为受低渗及高粘及多相渗流影响,非达西渗流特征显著、流动阻力会更大,是完井测试低产出及压后供给能力不足的重要因素;受低渗及多相渗流影响,高含水饱和度的储层压后见效的可能性低,是压裂选井、选层工作中值得重视的问题。

In the Irrawaddy basin Myanma oil and gas exploration well fracturing work for the first time,make sure that the work area of the strike-slip compression stress state(Ⅲ type);under the small fracturing test,adjust the main sand fracturing program,in the design of the whole combination DST3 layer ceramic plans,ensuring the operational safety sand smooth implementation.After the output of a high-pressure condensate,high viscosity Intermediate oil,that by hypotonic and multiphase flow and viscous effects,a significant non-Darcy flow characteristics,flow resistance will be greater,is the completion and after pressure testing low output insufficient supply capacity an important factor;under hypotonic and multiphase seepage,high water saturation of the reservoir pressure after the effective possibility is low,is fracturing well selection,layer selection work worthy of attention.