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)
2014年
7期
20-23
,共4页
建槽%磁测量系统%靶区%中靶
建槽%磁測量繫統%靶區%中靶
건조%자측량계통%파구%중파
cavity development%magnetic ranging system%target area%target-hitting
随着钻井采矿技术的应用从石油、盐井向天然碱井、煤层气等行业的日益拓展,钻进靶区面积越来越小,这对传统的中靶测量技术提出了严峻的挑战。不同时期的钻井测量技术,需要对应不同大小的靶区,以实现较高的连通率。针对MWD导向和高精度磁中靶导向技术,分析了各自的误差大小,提出了对靶区尺寸的基本要求。
隨著鑽井採礦技術的應用從石油、鹽井嚮天然堿井、煤層氣等行業的日益拓展,鑽進靶區麵積越來越小,這對傳統的中靶測量技術提齣瞭嚴峻的挑戰。不同時期的鑽井測量技術,需要對應不同大小的靶區,以實現較高的連通率。針對MWD導嚮和高精度磁中靶導嚮技術,分析瞭各自的誤差大小,提齣瞭對靶區呎吋的基本要求。
수착찬정채광기술적응용종석유、염정향천연감정、매층기등행업적일익탁전,찬진파구면적월래월소,저대전통적중파측량기술제출료엄준적도전。불동시기적찬정측량기술,수요대응불동대소적파구,이실현교고적련통솔。침대MWD도향화고정도자중파도향기술,분석료각자적오차대소,제출료대파구척촌적기본요구。
As the applications of drilling mining technology are extended from petroleum and salt well to trona solution and CBM mining industries, the thin or weak ledges can provide only a smaller target area, which makes the target-hitting more and more difficult.Different kinds of ranging technology depend on different size of target cavities so as to realize the con-nection between the drilling well and target well.In this paper, the analysis is focused on the deviation errors produced by MWD and rotary magnet ranging system, and the appropriate size of the cavity development is proposed.