中国煤炭地质
中國煤炭地質
중국매탄지질
COAL GEOLOGY OF CHINA
2013年
11期
59-62
,共4页
松散地层%钻孔设计%冲洗液%钻进方法%钻具改进%堵漏方法
鬆散地層%鑽孔設計%遲洗液%鑽進方法%鑽具改進%堵漏方法
송산지층%찬공설계%충세액%찬진방법%찬구개진%도루방법
loose bed%borehole design%flush fluid%drilling method%drilling tool improvement%leak stopping method
宋家营勘查区位于河北唐山丰南区，存在着新生界厚度大，流沙层、卵石层、砂砾层松散破碎，部分钻孔漏失严重；煤层埋藏深、层数多、层位变化大等问题，给提高钻探施工质量和效益带来了不便。为解决这些问题，作者从钻孔设计入手，针对不同的地层采用相适应钻探工艺和技术措施，对长期沿用钻探方法进行改进，使钻进方法更具有针对性；对不同的地层配制了不同的冲洗液，对地层漏失根据情况采用恰当的堵漏方法，大大减少了因堵漏增加的成本。从而使钻进效率由过去的287m/台月，提高到440m/台月，台月效率提高了53.3%，大大降低了钻探成本。
宋傢營勘查區位于河北唐山豐南區，存在著新生界厚度大，流沙層、卵石層、砂礫層鬆散破碎，部分鑽孔漏失嚴重；煤層埋藏深、層數多、層位變化大等問題，給提高鑽探施工質量和效益帶來瞭不便。為解決這些問題，作者從鑽孔設計入手，針對不同的地層採用相適應鑽探工藝和技術措施，對長期沿用鑽探方法進行改進，使鑽進方法更具有針對性；對不同的地層配製瞭不同的遲洗液，對地層漏失根據情況採用恰噹的堵漏方法，大大減少瞭因堵漏增加的成本。從而使鑽進效率由過去的287m/檯月，提高到440m/檯月，檯月效率提高瞭53.3%，大大降低瞭鑽探成本。
송가영감사구위우하북당산봉남구，존재착신생계후도대，류사층、란석층、사력층송산파쇄，부분찬공루실엄중；매층매장심、층수다、층위변화대등문제，급제고찬탐시공질량화효익대래료불편。위해결저사문제，작자종찬공설계입수，침대불동적지층채용상괄응찬탐공예화기술조시，대장기연용찬탐방법진행개진，사찬진방법경구유침대성；대불동적지층배제료불동적충세액，대지층루실근거정황채용흡당적도루방법，대대감소료인도루증가적성본。종이사찬진효솔유과거적287m/태월，제고도440m/태월，태월효솔제고료53.3%，대대강저료찬탐성본。
The Songjiaying exploration area is located in Fengnan District, Tangshan, Hebei. The area has thick and loose Cenozoic quicksand, pebble, sandy gravel layers. Part of boreholes seriously loss of circulation, multiple coal seams deeply buried with variable horizons, thus brought about problems on drilling quality and efficiency. To answer the purpose, starting with borehole design, in allu-sion to different strata use corresponding drilling technology and technical measures. To improve drilling method used leftover a long period of time, make drilling method more pertinence. Different flush fluid formulae for different strata, using well chosen leak stopping method according to leak situation, greatly reduced leak stopping cost. Thus boost up drilling efficiency from past 287m/rig · month to 440m/rig·month, about 53.3%and greatly reduced drilling cost.
