| 青海煤系复杂地层环保冲洗液体系研究及应用 |
| 投稿时间：2021-03-31 修订日期：2021-03-31 点此下载全文 |
| 引用本文：鲍海山,张少林,赵光通,等.青海煤系复杂地层环保冲洗液体系研究及应用[J].钻探工程,2021,48(S1):233-238.BAO Haishan,ZHANG Shaolin,ZHAO Guangtong,et al. Research and application of environment-friendly drilling fluid system for complex Qinghai coal measures[J]. Drilling Engineering, 2021,48(S1):233-238. |
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| 中文摘要:为了更好地适应绿色勘查工作要求，推动地质钻探工作绿色发展，促进绿色勘查工作进步，通过室内实验研究，围绕研制的环保型冲洗液体系能否满足环境保护和钻探工程要求，开展了对环保冲洗液添加剂及体系优选实验，研制了适合青海煤系复杂地层的环保冲洗液体系，并成功在木里煤田综合工程地质勘查项目HF-4号钻孔进行了生产试验。通过室内实验研究和现场应用表明，研制的环保冲洗液体系生物毒性达到了国家环保排放标准EC50≥30000 mg/L，并解决了青海煤系复杂地层孔壁易失稳等技术难题，形成了一套适合青海煤系复杂地层的环保冲洗液体系，取得了良好的社会和经济效益，表明该项技术成果有着良好的推广应用前景。 |
| 中文关键词:煤系复杂地层 环保冲洗液 地质钻探 绿色勘查 废浆固化剂 |
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| Research and application of environment-friendly drilling fluid system for complex Qinghai coal measures |
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| Abstract:In order to better adapt to the requirements of green exploration， promote the green development of geological drilling， and promote the progress of green exploration， optimization experiment of environment-friendly drilling fluid additives and systems was carried out with the development of the environment-friendly drilling fluid system suitable for Qinghai coal measures complex strata through indoor experimental research focused on whether the environment-friendly drilling fluid system to be developed can meet the requirements of environmental protection and drilling engineering； and production test was successfully carried out in HF-4 borehole of the Muli Coalfield comprehensive engineering geological exploration project. Indoor experimental study and field application showed that the developed environment-friendly drilling fluid reaches the national environmental protection discharge standard for biotoxicity with EC50 ≥ 30000 mg/L， has solved the technical problems of hole wall instability in complex Qinghai Coal Measures， formed an environment-friendly drilling fluid system suitable for Qinghai coal measures complex formation， and achieved good economic and social benefits， indicating that the technical achievement has a good application prospect. |
| keywords:complex coal measures environment-friendly drilling fluid geological drilling green exploration waste mud solidifying agent |
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