含油污泥在油田开发中的应用研究

APPLIED RESEARCH OF OILY SLUDGE IN OILFIELD DEVELOPMENT

在油田生产过程中，沉降析出的罐底含油污泥的外排，由于含油污泥量大、矿化度高、含油多，对周边环境污染严重。现介绍一种新的研究成果，即将含油污泥经化学处理后变成稠化油污泥调剖剂，用于高渗透注水井调剖，封堵强吸水孔道。现场应用表明，该技术增油降水效果显著，较好地解决了污泥的污染与利用问题，为油田治理污泥污染找到一条经济有效的途径。

During production of an oilfield, the oily sludge settled at the bottom of the tank must be expelled. Because it is with great amount of slurry and oil,with high salinity, the oily sludge contaminates the environment seriously. This paper introduces a new technique,that is,change the oily sludge into a kind of viscous profile controlling agent through chemical treatment,and then use the agent to conduct profile control in high permeability injectors so as to plug the strong injectivity pore passages. Field application indicates:this technique is effective for increasing oil production and decreasing water output,and has better solved the problem of contamination and utilization of oily sludge. It has provided an economic and effective way for treating the contamination of oily sludge.