低孔低渗砂岩储层废弃钻井液环境污染土壤深度研究  

Research on Soil Depth of Environmental Pollution from Abandoned Drilling Fluid in Low Porosity and Low Permeability Sandstone Reservoirs

作　　者：胡登平 李银生 黄欣悦 叶志强 贺波[1] Hu Dengping;Li Yinsheng;Huang Xinyue;Ye Zhiqiang;He Bo(Shaanxi Yanchang Petroleum(Group)Co.,Ltd.Oil&Gas Exploration Company,Yan'an 716000,China)

机构地区：[1]陕西延长石油(集团)有限责任公司油气勘探公司,陕西延安716000

出　　处：《环境科学与管理》2024年第8期50-53,共4页Environmental Science and Management

摘　　要：在油气田勘探开采过程中,废弃钻井液的泄露会污染油气田生态环境,造成土壤的理化性质改变、植物枯萎等现象,为便于控制污染,提出低孔低渗砂岩储层废弃钻井液环境污染土壤深度研究。分析储层废弃钻井液环境污染特性,根据废弃钻井液滤失量与时间的关系构建废弃钻井液滤失量计算模型,构造废弃钻井液污染土壤深度估算公式,实现了储层废弃钻井液环境污染土壤深度的分析。实验数据显示:在不同实验工况背景下,应用提出方法获得的废弃钻井液污染土壤深度估算误差最小值为2%,充分证实了提出方法应用性能佳。In the process of exploring oil and gas fields,the leakage of waste drilling fluid will pollute the ecological environment of oil and gas fields,resulting in the change of physical and chemical properties of soil and the wilting of plants,etc.In order to facilitate the control of pollution,the study analyzes the environmental pollution of waste drilling fluid in low porosity and low permeability sandstone reservoir.The environmental pollution characteristics of reservoir waste drilling fluid were analyzed,and the calculation model of waste drilling fluid filtration loss was established according to the relationship between waste drilling fluid filtration loss and time.The estimation formula of waste drilling fluid pollution soil depth was constructed to realize the analysis of environmental pollution soil depth of reservoir waste drilling fluid.The experimental data show that under different experimental conditions,the minimum error of estimating the depth of soil contaminated by waste drilling fluid obtained by the proposed method is 2%,which fully confirms the good application performance of the proposed method.

关 键 词：钻井液 低孔低渗砂岩储层 污染深度 环境污染 

分 类 号：X53[环境科学与工程—环境工程]