| 张超.苏丹国水利大坝勘察——水上钻探施工流程[J].矿产勘查,2010,1(6):576-579 |
| 苏丹国水利大坝勘察——水上钻探施工流程 |
| Hydropower dam investigation in Sudan ——The technique process of offshore drilling |
| 投稿时间：2010-09-10 |
| DOI： |
| 中文关键词: 钻探平台 平台定位 钻进 苏丹 |
| 英文关键词: drilling platform platform positioning drilling Sudan |
| 基金项目: |
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| 中文摘要: |
| 华北有色工程院苏丹公司(NCGEI)相继承揽了苏丹国北部、南部总计10个尼罗河水利大坝的勘察工作。在这些勘察工作中,尼罗河水上勘察的工作占主要部分,所以也就决定了水上勘察的重要性。水上勘察,施工难度大,水流湍急,定位难,钻进取芯难。为了解决这一难题,根据多年的施工经验和不懈的探索精神,创造了一套完整的水上钻探流程；包括如何根据钻探设备的重量来设计钻探平台,保证平台的稳定性,实用性,以及平台上的一些基础设施的安全使用；如何制造经济适用的锚,并根据孔位的位置抛锚定位等水上钻探应注意的事项等。 |
| 英文摘要: |
| North China Geo-engineering investigation institute(NCGEI) successively contracted with Sudan to investigate totally 10 hydropower dams over Nile River in North and south Sudan. The offshore drilling work on Nile River plays the head role and takes much more important place in investigation. The offshore investigation implements difficulties with the swift water running, borehole positioning and coring. To overcome these difficulties,based on the years construction experience, research and exploration, we found a complete offshore drilling process system which consists of:the drilling platform design based on the drilling machineries weight to ensure the platform stability and practicality, the safe facility operation, the economic and applicable anchors fabrication, platform locating refered to anchors dropping positions, as well as offshore drilling notifications, etc. |
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