探矿工程-岩土钻掘工程
探礦工程-巖土鑽掘工程
탐광공정-암토찬굴공정
EXPLORATION ENGINEERING (DRILLING & TUNNELING)
2015年
5期
40-45
,共6页
水文地质深孔%抽水试验%套管止水%洗井%提拔套管
水文地質深孔%抽水試驗%套管止水%洗井%提拔套管
수문지질심공%추수시험%투관지수%세정%제발투관
deep hydrogeological hole%pumping test%water stop by casing%well washing%casing pulling
以河南省禹州市张得区煤详查钻探项目ZK2208钻孔为例，通过采用合理的成井结构、套管异径双重止水、焦磷酸钠＋CO2洗井、钻机＋千斤顶提拔长观孔内套管等各种工艺措施，有效解决了顺利下入套管、一次性有效止水、有效洗井、顺利提拔套管等各种施工技术难题，顺利完成了1300多米水文地质深孔的施工，达到了地质设计与有关规范的要求。
以河南省禹州市張得區煤詳查鑽探項目ZK2208鑽孔為例，通過採用閤理的成井結構、套管異徑雙重止水、焦燐痠鈉＋CO2洗井、鑽機＋韆斤頂提拔長觀孔內套管等各種工藝措施，有效解決瞭順利下入套管、一次性有效止水、有效洗井、順利提拔套管等各種施工技術難題，順利完成瞭1300多米水文地質深孔的施工，達到瞭地質設計與有關規範的要求。
이하남성우주시장득구매상사찬탐항목ZK2208찬공위례，통과채용합리적성정결구、투관이경쌍중지수、초린산납＋CO2세정、찬궤＋천근정제발장관공내투관등각충공예조시，유효해결료순리하입투관、일차성유효지수、유효세정、순리제발투관등각충시공기술난제，순리완성료1300다미수문지질심공적시공，체도료지질설계여유관규범적요구。
Take the example of ZK2208 in detailed survey project of Yuzhou of Henan Province, with rational well drilling structure, water stop by different diameter casings, well washing by sodium pyrophosphate and CO2 , casing pulling for long term observation hole with drill and jack, the difficulties of casing running, one trial effective water stop, effective well washing and smooth casing pulling have been overcome, a deep hydrogeological hole of more than 1300m in depth has been completed according to the geological design and related regulations.
