水力喷砂射孔技术在地浸钻孔成井中的应用
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- 英文论文题名：Application of sand jet perforation technology in in-situ leaching well building
- 论文作者：吉宏斌 ; 范正辉 ; 崔裕禄
- 英文论文作者：JI Hong-bin ; FAN Zheng-hui ; CUI Yu-lu ; Tianshan Uranium Industry Co. ; Ltd. ; CNNC
- 年：2015
- 作者机构：新疆中核天山铀业有限公司;
- 论文关键词：水力喷砂射孔 ; 地浸钻孔 ; PVC井管 ; 钻进液 ; 污染
- 英文论文关键词：sand jet perforation ; in-situ leaching well ; PVC casing ; drilling liquid ; pollution
- 会议召开时间：2015-09-21
- 会议录名称：中国核科学技术进展报告（第四卷）——中国核学会2015年学术年会论文集第1册（铀矿地质分卷、铀矿冶分卷）
- 语种：中文
- 分类号：TE257.1
- 学会代码：EGVD
- 会议名称：中国核学会2015年学术年会
- 会议地点：中国四川绵阳
- 主办单位：中国核学会
- 学会名称：中国核学会
- 页数：12
- 文件大小：1028k
- 原文格式：O
- 会议级别：全国
摘要
在某多层矿体开采钻孔工艺研究中,为了定位开启全孔水泥固井钻孔与目标矿层的水力联系,并修复钻孔施工过程中钻进液对矿层渗透性的损伤,开展了水力喷砂射孔技术应用研究,利用高压水射流加砂(磨料)通过喷射工具完成射穿套管和地层。首先试验了模拟钻孔井筒结构的地表打靶,在掌握水力喷砂射孔对PVC材质的损伤程度以及最佳砂比等技术参数基础上,分别在试-05等6个钻孔进行射孔试验。结果表明,高压水砂射流可以在井下有效击穿PVC套管和水泥环,未造成对PVC套管的破坏性损伤,并部分清理出渗入地层的钻进泥浆,改善了钻孔周围含矿含水层的渗透性。
During the study process for the drilling technology in multilayer ore body mining in Mengqiguer deposit,in order to build the hydraulic connection accurately between the ore bearing aquifer and the cemented leaching well,and recover the aquifer permeability,the sand jet perforation technology was introduced,which uses high-pressure water with sand to cut the casing and surrounding stratum by jetting tool.Before the underground application,an ground experiment had been conducted using a well model.On the basis of mastering the damage-degree of PVC casing and optimum technical parameter of sand ratio,field sand jet perforation applied experiment was carried out in six wells.Results show that the high-pressure water with sand can cut the casing is stratum effectively,and the PVC casing was not destroyed.The mud infiltrating into surrounding aquifer can also be cleared by the high-pressure water,and hence the aquifer permeability is enhanced.
During the study process for the drilling technology in multilayer ore body mining in Mengqiguer deposit,in order to build the hydraulic connection accurately between the ore bearing aquifer and the cemented leaching well,and recover the aquifer permeability,the sand jet perforation technology was introduced,which uses high-pressure water with sand to cut the casing and surrounding stratum by jetting tool.Before the underground application,an ground experiment had been conducted using a well model.On the basis of mastering the damage-degree of PVC casing and optimum technical parameter of sand ratio,field sand jet perforation applied experiment was carried out in six wells.Results show that the high-pressure water with sand can cut the casing is stratum effectively,and the PVC casing was not destroyed.The mud infiltrating into surrounding aquifer can also be cleared by the high-pressure water,and hence the aquifer permeability is enhanced.
引文
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[2]李克向.保护油气井钻井完井技术[M].北京:石油工业出版社.1996.
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[4]陈平.钻井与完井工程[M].北京:石油工业出版社.2004.
[5]袁吉诚.中国射孔技术的现状与发展[J].测井技术,2002.26(5):421-425.
[6]刘河秀.超正压射孔工艺技术[J].钻采工艺,2002,25(4):102-103.
[7]荣学艺.国外新型射孔技术:复合水动力射孔[J].国外油田工程,2010,26(12):29-31.
[8]纪松,宫建.高温高压中测试联作对孔技术研究与应用[J].复杂油气藏,2013(3):76-78.
[9]胡风涛.水力喷射射孔工具的研制和应用[J].石油机械,2000,28(10):39-41.
[10]庄伟.水力喷砂射孔理论与实验研究[D].东营:中国石油大学,2008.
[11]孙家枢.金属的磨损[M].北京:冶金工业出版社,1992:478-506.
[12]牛继磊,李根生,宋剑,等.磨料射流射孔增产技术研究与应用[J].石油钻探技术,2003,3l(5):55-57.
[13]胡风涛.水力喷射射孔工具的研制与应用[J].石油机械,2000,28(10):39-41.
[14]王步娥,舒晓晖,尚绪兰,等.水力喷射射孔技术研究与应用[J].石油钻探技术,2005(3):51-54.
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[16]李根生,牛继磊,刘泽凯,等.水力喷砂射孔机理实验研究[J].石油大学学报(自然科学版),2002,26(2):31-34.