水基钻井固废分类资源化处置利用浅论

A Brief Discussion on Classified Resource Disposal and Utilization of Water-based Drilling Solid Waste

基于中国石油西南油气田目前水基钻井固废均送当地制砖厂处置利用存在的处置费用高、潜在安全环保风险大的问题,在简要分析西南油气田水基钻井固废的产生量、来源、特性、组成性质等基础上,提出了依据不同水基钻井液体系对钻井固废进行分类的方法,并重点论述了气体水基钻井固废、聚合物钻井液体系固废、磺化钻井液体系固废3种水基钻井液体系所产生固废的污染物性质,相应的资源化处置利用方法第1优选分别为:直接/生物处理土壤利用、生物处理土壤利用、制烧结砖/生物处理土壤利用等,提出了相关结论建议,对油气勘探钻井环保决策管理和研究具有一定参考价值。

Based on the problems of high disposal cost,high potential safety and high environmental risks existing in the current treatment and utilization of water-based drilling solid wastes in Southwest PetroChina Oil and Gas Field,this paper briefly analyzed the production,source,characteristics and composition of water-based drilling solid wastes in Southwest PetroChina Oil and Gas Field.On the basis of composition properties,a method to classify drilling solid waste based on different water-based drilling fluid systems is proposed,and emphatically discussed on the pollutant properties of solid waste generated by the three types of water-based drilling fluid systems,such as the gas water-based drilling solid waste,polymer drilling fluid system solid waste,and sulfonated drilling fluid system solid.The correspondence of resource disposal and utilization methods for different drilling fluid systems are as follows:direct/biologically treated soil utilization,biologically treated soil utilization,sintered brick/biologically treated soil utilization etc.The relevant conclusions and suggestions are of guiding significance to the managers and workers of environmental protection decision-making in oil and gas exploration drilling.