封隔注浆分层成井技术在水文地质勘查中的应用研究
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摘要
封隔注浆分层成井技术为多层水文地质钻孔分层成井提供了一种快速高效的新工艺。传统分层成井方法耗时长、效果差、止水效果不稳定,尤其是在细颗粒或钻孔结构不稳定的地层分层成井困难,易发生钻孔事故等问题。文章通过室内试验和野外施工,探索出封隔注浆分层成井。以HQ56水文地质孔为例,研究了分层成井、分段振荡洗井,并进行了分层抽水试验。研究表明,封隔注浆分层成井技术止水可靠,分层抽水试验数据准确。该技术尤其适用于细颗粒或钻孔结构不稳定地层快速分层成井。
The technology of injecting cement for the stratified well completion can provide a new rapid and high effective technology for the stratified well completion on a multi-layer hydrogeologic well.The problems of time-consuming,bad effect,unstable effect of sealing water,difficult construction and high failure rate of the stratified well completion for the stratum of fine grained or unstable drilling structure resulting from traditional methods of the stratified well completion are considered,and the technology of injecting cement for the stratified well completion is developed through laboratory tests and drilling construction.On the basic of the expounding principle and the process of the technology of injecting cement for the stratified well completion,the application example of the HQ56 hydrogeologic well from the stratified well completion,segment wellflushing and stratified pumping test of the hydrogeologic well is analyzed.The results show that application of the technology of injecting cement for the stratified well completion to seal water is reliable and the data from the stratified pumping test is accurate.The technology is especially suitable for the rapid stratified well completion on the stratum of fine grained or unstable drilling structure.
The technology of injecting cement for the stratified well completion can provide a new rapid and high effective technology for the stratified well completion on a multi-layer hydrogeologic well.The problems of time-consuming,bad effect,unstable effect of sealing water,difficult construction and high failure rate of the stratified well completion for the stratum of fine grained or unstable drilling structure resulting from traditional methods of the stratified well completion are considered,and the technology of injecting cement for the stratified well completion is developed through laboratory tests and drilling construction.On the basic of the expounding principle and the process of the technology of injecting cement for the stratified well completion,the application example of the HQ56 hydrogeologic well from the stratified well completion,segment wellflushing and stratified pumping test of the hydrogeologic well is analyzed.The results show that application of the technology of injecting cement for the stratified well completion to seal water is reliable and the data from the stratified pumping test is accurate.The technology is especially suitable for the rapid stratified well completion on the stratum of fine grained or unstable drilling structure.
引文
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[2]常林祯,杨文轩,徐树,等.分层止水技术在污染场地环境调查中的应用[J].探矿工程(岩土钻掘工程),2017,44(7):24-28.[CHANG L Z,YANG WX,XU S,et al.Application of stratified water shutoff technology in environmental investigation of contaminated sites[J].Exploration Engineering(Rock&Soil Drilling and Tunneling),2017,44(7):24-28.(in Chinese)]
[3]王明明,卢颖,解伟.CMT监测井在黑河流域地下水监测中的应用[J].中国环境监测,2016,32(6):141-145.[WANG M M,LU Y,XIE W.Application of CMT monitoring well on monitoring groundwater in Heihe River Basin[J].Environment Monitoring of China,2016,32(6):141-145.(in Chinese)]
[4]郑继天,王建增,蔡五田,等.地下水污染调查多级监测井建造及取样技术[J].水文地质工程地质,2009,36(3):128-131.[ZHENG J T,WANG J Z,CAI W T,et al.Construction of multi-level monitoring well and sampling technology for groundwater contamination investigation[J].Hydrogeology&Engineering Geology,2009,36(3):128-131.(in Chinese)]
[5]何计彬,潘德元,李炳平,等.深井分层真空抽水试验及机理分析[J].探矿工程(岩土钻掘工程),2017,44(1):18-23.[HE J B,PAN D Y,LI B P,et al.Deep well stratified vacuum pumping test and the mechanism analysis[J].Exploration Engineering(Rock&Drillingand Tunneling),2017,44(1):18-23.(in Chinese)]
[6]王晓燕,安永会,邵新民,等.封隔震荡洗井新技术在水文地质勘查中的应用研究[J].水文地质工程地质,2017,44(4):30-33.[WANG X Y,AN Y H,SHAO X M,et al.Application of the new technology of well-flushing with parker to hydrogeological exploration[J].Hydrogeology&Engineering Geology,2017,44(4):30-33.(in Chinese)]
[7]秦金立,陈作,杨同玉,等.鄂尔多斯盆地水平井多级滑套分段压裂技术[J].石油钻探技术,2015,43(1):7-12.[QIN J L,CHEN Z,YANG T Y,et al.Technology of staged fracturing with multi-stage sleeves for horizontal wells in the Ordos Basin[J].Petroleum Drilling Techniques,2015,43(1):7-12.(in Chinese)]
[8]付亚荣.分层采油多级封隔器坐封模型[J].石油机械,2016,44(10):90-92.[FU Y R.Setting model of multiple packer for separate layer production[J].China Petroleum Machinery,2016,44(10):90-92.(in Chinese)]
[9]王治国,王在强,巨亚锋.K344-108型小直径封隔器的改进与应用[J].石油机械,2010,38(8):40-43.[WANG Z G,WANG Z Q,JU Y F.Improvement and application of model K344-108small-diameter packer[J].China Petroleum Machinery,2010,38(8):40-43.(in Chinese)]
[10]李文鹏,安永会.黑河流域重点地区水文地质调查成果报告[R].保定:中国地质调查局水文地质工程地质调查中心,2016.[LI W P,AN Y H.Results report on hydrogeological investigation of Heihe River Basin[R].Baoding:Center for Hydrogeology and Environmental Geology,CGS,2016.(in Chinese)]
[11]赵捷,徐宗学,左德鹏.黑河上中游潜在蒸散发模拟及变化特征分析[J].水科学进展,2015,26(5):614-623.[ZHAO J,XU Z X,ZUO D P.Estimation of potential evapotranspiration and its variability in the upper and middle reaches of the Heihe River basin[J].Advances in Water Science,2015,26(5):614-623.(in Chinese)]
[12]卢颖,郭建强.基于多元统计方法的张掖盆地地下水化学特征分析[J].干旱区资源与环境,2016,30(5):129-134.[LU Y,GUO J Q.Hydrochemical characteristics of groundwater of Zhangyebasin[J].Journal of Arid Land Resources and Environment,2016,30(5):129-134.(in Chinese)]
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