摘要
以双河油田IV5-11层系为例,由聚合物性能、地层的渗透率、吸水能力、产液能力等指标计算得到聚表二元复合驱的注采能力与注采井距的关系。同时,考虑聚合物在地层中的粘浓关系、热稳定性、剪切降解等规律,以及表面活性剂在地下的稳定性等性能指标可求得二元复合体系的有效作用区间。进而得到聚表二元复合驱井距的合理范围。
Taking layer system IVS-11 of Shuanghe oilfield as an example, the relationship between injection-production capability and injection-production well spacing of polymer/surfactant flooding are obtained according to the computation of indexes such as polymer characteristic, permeability of layer, water absorption and fluid production. Effective area of polymer/surfactant muhisystem can be gained by considering the laws such as viscosity-concentration relationship, thermostability and shear degradation of polymer and surfactant stability in formation. Rational well spacing for polymer/surfactant flooding is obtained.
出处
《吐哈油气》
2010年第3期279-282,共4页
Tuha Oil & Gas
关键词
二元复合驱
井距
注入压力
注入速度
渗透率
polymer/surfactant flooding
well space
injection pressure
injection rate
permeability
