河南古城油田多级段塞组合增效聚合物驱技术  

Multisage slug combinatron synergistic polymer flooding technology applied to Gucheng Oilfield in Henan

作　　者：张卓 ZHANG Zhuo(China Petroleum Chemical Co..Ltd.,Henan Oilfield Branch Exploration and Development Research Institute, Nanyang 473132,China)

机构地区：[1]中国石油化工股份有限公司河南油田分公司勘探开发研究院,河南南阳473132

出　　处：《化学工程师》2018年第12期42-44,共3页Chemical Engineer

摘　　要：古城油田泌125区是典型的高孔高渗油藏,层系开发存在注入剖面严重不均,层间渗透率级差较大,平面聚驱窜流严重。为了改善聚驱效果,设计了多级颗粒调驱段塞组合,对不同渗透率的油藏进行有效地调驱。岩心实验表明,聚合物和粘弹性颗粒复合体系能有效地调整高渗岩心优势通道,聚合物和聚合物微球复合体系在平均渗透率产生良好的封堵效果。多级段塞组合对双管并联岩心的分流调整能力强,高渗分流率降低,低渗分流率上升。一定程度封堵聚驱优势渗流通道的作用,抑制窜流,提高聚合物驱效果。Gucheng Oilfield B125 district is a typical high hole high permeability reservoirs, there are injection profile serious inequality in the development of series of strata, interlayer permeability differential is bigger, flat polymer channeling is serious. In order to improve polymer flooding effect, displacement of different permeability reservoir effectively. The combination of multistage slug is designed. And compared with polymer flooding effect.And compared with polymer flooding effect. Core experiments show that the polymer and viscoelastic particles com-posite system can effectively adjust the high permeability core advantage channel, polymer and polymer micro-spheres complex system in average permeability good sealing effect. The multi-stage slug combination has strong a-bility to adjust the shunt of the two-pipe parallel core, with the high permeability and the low permeability. The effect of the seepage channel of the polymer flooding can be blocked to a certain extent, which can inhibit the chan-neling and improve the polymer flooding effect.

关 键 词：多级段塞组合 封堵率 

分 类 号：TE345[石油与天然气工程—油气田开发工程]