煤层气聚合物钻井废液无害化处理研究  

RESEARCH ON NON-HAZARDOUS TREATMENT FOR COAL-SEAM GAS POLYMER WASTE DRILLING FLUID

作　　者：毛志新[1] 张太亮[2] 赵德银[2] 莫林[2] 郭威[2] 钟水清[2] 

机构地区：[1]中联煤层气国家工程研究中心有限责任公司 [2]西南石油大学

出　　处：《钻采工艺》2012年第3期82-85,13,共4页Drilling & Production Technology

基　　金：国家自然科学基金项目(编号:50674077);四川省教育厅重点项目"声化学复合催化氧化处理四川普光气田含硫废液研究"(编号:07ZA114)的资助

摘　　要：针对煤层气钻井液类型、钻井废液组成、特点及危害分析,根据煤层气钻井特点及煤层气废泥浆现场处理要求,提出了对煤层气钻井废液进行现场进行无害化处理优化工艺研究。通过对处理钻井废液各处理剂研究,得到处理无害化煤层气钻进废液的优化工艺条件:PC-1脱稳混凝剂加量为8000mg/L;QP混凝助剂加量为30mg/L;YH处理剂加量为1000mg/L,pH值为5～6,作用时间为50min。钻井废泥浆固化处理优化工艺:固化剂:FS为加量7%;破胶催化剂:CPCA加量为1.5%～2.0%。通过上述优化工艺对煤层气聚合物钻井废液处理后各项指标达到一级排放标准(GB8978-1996)。According to the analysis of coal-seam gas waste drilling fluid,including its chemical composition,property and harm,and based on the special requirement for treating waste drilling fluid and drilling characteristics,a non-hazardous treatment technology for waste drilling fluid was studied.The optimum technological conditions were gained by researching on waste drilling fluid treatment agent.The optimum conditions are:the dosage of PC-1 coagulant of 8000mg.L-1,QP coagulant of 30mg.L-1,YH agent of 1000mg.L-1,pH value of 5~6 and action time of 50min.The optimum conditions of waste mud solidification technology were:solidification agent FS of 7%,gel-break-catalytic agent CPCA of 1.5%~2.0%.The polymer waste drilling fluid was treated to meet the national standard GB8978-1996 I by above conditions.

关 键 词：聚合物钻井废浆 破胶混凝 废水深度氧化 废泥浆固化 

分 类 号：X741[环境科学与工程—环境工程]