汶川地震断裂带科学钻探项目取心钻进技术

英文篇名：Coring Drilling Technology in Wenchuan Earthquake Fault Scientific Drilling Project
中文刊名：探矿工程(岩土钻掘工程)
英文刊名：Exploration Engineering(Rock & Soil Drilling and Tunneling)
作者：王稳石 ; 朱永宜 ; 贾军 ; 李前贵
英文作者：WANG Wen-shi1 ; ZHU Yong-yi1 ; JIA Jun2 ; LI Qian-gui3(1.The Institute of Exploration Techniques ; CAGS ; Langfang Hebei 065000 ; China ; 2.Beijing Institute of Exploration Engineering ; Beijing 100083 ; China ; 3.The Institute of Exploration Technology ; CAGS ; Chengdu Sichuan 611734 ; China)
中文关键词：汶川地震 ; 地震断裂带 ; 科学钻探 ; 复杂地层 ; 破碎地层 ; 取心钻进
英文关键词：Wenchuan earthquake ; earthquake fault ; scientific drilling ; complex formation ; broken formation ; coring drilling
出版日期：2012-09-25
机构：中国地质科学院勘探技术研究所;北京探矿工程研究所;中国地质科学院探矿工艺研究所;
年：2012
期：09
出版单位：探矿工程(岩土钻掘工程)

摘要

汶川地震断裂带科学钻探(WFSD)项目钻孔的主要目的之一是通过有效的技术手段,在极其破碎的地层中获取满足地学要求的原状岩心。通过在WFSD-2、WFSD-3两个钻孔采取隔液取心钻进、尖齿PDC小钻压取心钻进、孔底动力取心钻进、半合管无损出心等关键技术,高质量地达到了工程的取心要求,并有效地提高了难钻进、易堵心地层机械钻速和回次进尺。
Wenchuan earthquake's Fracture Scientific Drilling(WFSD) was carrying out in the serious broken formation,one of the purposes is obtaining original cores to meet the geosciences requirements.Technologies of isolated fluid coring drilling,polycrystalline diamond compact(PDC) with sharp teeth and low drilling weight coring drilling,bottom hole power coring drilling and split barrel undamaged coring were applied in WFSD-2 and WFSD-3.The results indicated that the rate of drilling speed and roundtrip footage were improved in the serious broken formation.What's even more important was that the high-quality original cores had been obtained by these improved drilling technologies.

引文

[1]张伟,贾军,等.汶川地震科学钻探项目的概况和钻探技术[J].探矿工程(岩土钻掘工程),2009,36(S1).
    [2]王稳石,朱永宜.科学钻探复杂地层取心钻进技术[J].探矿工程(岩土钻掘工程),2011,38(S1).
    [3]朱永宜,王稳石.松科一井(主井)取心钻进工艺[J].探矿工程(岩土钻掘工程),2008,35(9).
    [4]朱永宜.KZ型单动双管取心钻具的研制与应用[J].石油钻探技术,2006,34(3).