水力脉冲解堵优化技术在长庆油田的应用

长庆油田属于特低渗透油田,由于解堵液和工艺缺陷,解堵效果不理想。经研究长6储层物性、敏感性,对解堵液、工序、施工参数等进行优化,解除了射孔炮眼和近井地层的机械杂质堵塞,清除了浮化物、蜡质和沥青等有机物堵塞,助排剂加快了井液返排时间,控制低渗储层水锁效应的发生,增强了解堵效果。

Application of Optimize Broken Down Technology by Hydraulic Pulse in Changqing Oilfield

Changing oilfield belongs to low permeability that makes broken down result not be reasonable for shortage of broke down fluid and technique. By studying physical property and sensibility of Chang6 reservoir,it is optimized of broken down fluid,procedure and operation parameters to remove the plug of mechanical dirt at perforated hole and formation near well bore and to clean the organic material plug of emulsion, waxy and asphalt. Cleanup addictive speeds up flow back time of fluid in well, controls the appearance of water lock effect in low percolation reservoir and enhances broken down result.