绳索取芯钻进工艺对气测录井的影响
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摘要
绳索取芯钻进工艺广泛应用于煤层气参数井中,为解决气测录井准确度易受影响的问题,本文着重从取芯作业和泥浆泵排量两个方面进行探讨。分析结果:取芯作业时钻井液的静止以及小排量泥浆泵过长的迟到时间是影响气测录井准确度的主要原因;通过加强循环、适当提高泵排量的方法可将其对准确度的影响降至最低。
Wire-line coring drilling technology is widely used in coalbed methane parameter wells. In order to solve the problem that the accuracy of gas logging is easily affected, this paper focuses on two aspects: coring operation and mud pump displacement. The analysis results show that the main reasons affecting the accuracy of gas logging are the static drilling fluid during coring operation and the long lateness of small displacement mud pump; the influence of the accuracy can be minimized by strengthening circulation and increasing pump displacement appropriately.
Wire-line coring drilling technology is widely used in coalbed methane parameter wells. In order to solve the problem that the accuracy of gas logging is easily affected, this paper focuses on two aspects: coring operation and mud pump displacement. The analysis results show that the main reasons affecting the accuracy of gas logging are the static drilling fluid during coring operation and the long lateness of small displacement mud pump; the influence of the accuracy can be minimized by strengthening circulation and increasing pump displacement appropriately.
引文
[1]张艳青,罗军,黄维安.绳索取芯技术在煤层气井古1井的应用[J].山东煤炭科技,2013(02):9-10.
[2]王彦龙.论泥浆气测录井在煤层气开发中的应用[J].煤田地质与勘探,1998,26(s1):17-19.
[3]赵联忠,谭效林,刘景辉.综合气测录井仪在煤层气钻井中的应用[J].山东煤炭科技,2010(06):17-18.
[4]芦城,杨亚娟.气测录井影响因素分析[J].青海石油,2010(01):99-103.
[5]马志侃.钻探工程学[M].中国矿业大学出版社,1998.
[6]佘明军,郑俊杰,李胜利.气测录井全烃曲线异常的判断及应用[J].录井工程,2010,21(01):48-50.
[2]王彦龙.论泥浆气测录井在煤层气开发中的应用[J].煤田地质与勘探,1998,26(s1):17-19.
[3]赵联忠,谭效林,刘景辉.综合气测录井仪在煤层气钻井中的应用[J].山东煤炭科技,2010(06):17-18.
[4]芦城,杨亚娟.气测录井影响因素分析[J].青海石油,2010(01):99-103.
[5]马志侃.钻探工程学[M].中国矿业大学出版社,1998.
[6]佘明军,郑俊杰,李胜利.气测录井全烃曲线异常的判断及应用[J].录井工程,2010,21(01):48-50.