探矿工程-岩土钻掘工程
探礦工程-巖土鑽掘工程
탐광공정-암토찬굴공정
Exploration Engineering (Rock & Soil Drilling and Tunneling)
2015年
8期
39-42
,共4页
深孔钻探%绳索取心钻进%钻进参数%福建煤田
深孔鑽探%繩索取心鑽進%鑽進參數%福建煤田
심공찬탐%승색취심찬진%찬진삼수%복건매전
deep hole drilling%wire-line core drilling%drilling parameters%Fujian coalfield
福建煤田地质构造复杂，断层发育，岩层极其破碎且较松软，泥岩受挤压破碎为薄片状或烂泥状，给钻探施工造成许多困难，比如泥页岩水化膨胀，孔壁失稳导致孔内坍塌严重等。采用绳索取心技术，优选金刚石钻头，科学确定泥浆配比和钻进参数，成功解决了这些孔内技术难题，提高了钻探效率，降低了生产成本，取得的施工经验可供该矿区或该类地层的钻探施工借鉴。
福建煤田地質構造複雜，斷層髮育，巖層極其破碎且較鬆軟，泥巖受擠壓破碎為薄片狀或爛泥狀，給鑽探施工造成許多睏難，比如泥頁巖水化膨脹，孔壁失穩導緻孔內坍塌嚴重等。採用繩索取心技術，優選金剛石鑽頭，科學確定泥漿配比和鑽進參數，成功解決瞭這些孔內技術難題，提高瞭鑽探效率，降低瞭生產成本，取得的施工經驗可供該礦區或該類地層的鑽探施工藉鑒。
복건매전지질구조복잡，단층발육，암층겁기파쇄차교송연，니암수제압파쇄위박편상혹란니상，급찬탐시공조성허다곤난，비여니혈암수화팽창，공벽실은도치공내담탑엄중등。채용승색취심기술，우선금강석찬두，과학학정니장배비화찬진삼수，성공해결료저사공내기술난제，제고료찬탐효솔，강저료생산성본，취득적시공경험가공해광구혹해류지층적찬탐시공차감。
The geological structure is complex in Fujian coalfield with fault development, fractured and loose rock forma-tions and thin sheet or muddy mudstone by being extrusion, which cause many difficulties for drilling; such as mud shale hydration expansion and severe hole collapse led by hole wall instability, etc.By the use of wire-line core drilling technolo-gy, optimum the diamond bit and scientific ratio of mud and drilling parameters, the technical difficulties in holes were suc-cessfully solved.The drilling efficiency is improved and the production cost is reduced.
