| 加纳水井钻完井施工技术 |
| 投稿时间：2020-09-29 修订日期：2021-01-15 点此下载全文 |
| 引用本文：李保红,欧阳昊.加纳水井钻完井施工技术[J].钻探工程,2021,48(5):106-112.LI Baohong,OUYANG Hao. Water well drilling and completion technique in Ghana[J]. Drilling Engineering, 2021,48(5):106-112. |
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| 中文摘要:饮用水问题是关系到加纳人民健康和社会经济发展的重要问题。为解决这一问题，包括中国在内的世界多国政府和世界组织提供资金，建设了一批水井项目以改善该国的饮用水现状。湖北省地质工程有限公司在加纳历经21年的野外工作，克服各种技术问题，共完成4000多口水文水井的施工任务，积累了丰富的水文水井施工经验。本文介绍了加纳的水文地质概况及当地的施工技术要求，提出了一套适合于当地环境的施工机械设备配套方案。针对该国花岗岩、千枚岩和石英砂岩3大类地层特点，各提出了一套含开孔、钻进、扩孔和下滤管、投滤料等工序的钻完井施工工艺技术方案。 |
| 中文关键词:水井 饮用水 钻井工艺 完井工艺 加纳 |
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| Water well drilling and completion technique in Ghana |
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| Abstract:Potable water supply is a vital problem that relates to the human health and social and economic development in Ghana. In order to solve this problem， many governments including China and international organizations initiated a couple of water well construction projects to improve the situation. Hubei Geological Engineering Co.， Ltd has overcome a variety of difficulties， completed over 4000 water wells in Ghana， and accumulated rich experiences in 21 years. In the paper， firstly the hydrological and geological settings， and the technical requirements of water wells in the country are introduced. Then， a set of drilling equipment which is suitable for the local conditions is put forwarded. For each of the 3 main rock types in Ghana， namely granite， phyllite， and quartz sandstone， a well drilling and well completion solution， covering open hole drilling， pilot hole drilling， reaming， RIH of screen pipes and backfilling gravel material is provided respectively. |
| keywords:water well potable water drilling technique well completion technique Ghana |
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