电导阵列探针测井仪评价机采井堵水效果的应用
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摘要
大庆油田目前已进入高含水和特高含水开发阶段,油井含水过高容易造成注采井的无效循环、影响开发效果,急需对部分特高含水层位进行封堵。传统的阻抗式产出剖面测井仪含水率计受井筒流态等因素影响较大,测试结果可信度低。针对上述问题,讲述了电导阵列探针产出剖面测井仪工作原理及技术指标,论述了其在机采井堵水方案设计和效果评价上的应用。应用表明:电导阵列探针产出剖面测井仪含水率测试精度较高,对机采井进行堵水前应采用电导阵列探针产出剖面测井解释结果确定堵水目的层位。进行机械堵水的机采井宜用井口量油法确定堵水后产液量和含水率;进行化学堵水的机采井应再次进行产出剖面测试以评价堵水效果。
Daqing Oilfield has entered the stage of high water cut and extra high water cut development. The high water content of the oil well is easy to cause the ineffective circulation of the injection and production wells, which affects the development effect. So it is urgent to shut off some extra high aquifers. The traditional impedance pattern probe production profile logging instrument is greatly affected by factors such as the wellbore flow state, and the test results have low credibility. In view of the above problems, the working principle and technical indicators of the conductivity array needle probe production profile logging instrument are described, and its application in scheme design and the effect evaluation of the water shutoff of the mechanical production wells are discussed. The application shows that the accuracy of moisture content test of the conductive array needle probe production profile logging instrument is relatively high. Before the water shutoff of the machine production well, the conductive array needle probe production profile logging interpretation results should be used to determine the water shutoff target horizon. For mechanical oil production wells, it is advisable to use the wellhead oil method to determine the liquid production and water content after mechanical water shutoff. The mechanical production wells for chemical water shutoff should be tested again to determine the water shutoff effect.
Daqing Oilfield has entered the stage of high water cut and extra high water cut development. The high water content of the oil well is easy to cause the ineffective circulation of the injection and production wells, which affects the development effect. So it is urgent to shut off some extra high aquifers. The traditional impedance pattern probe production profile logging instrument is greatly affected by factors such as the wellbore flow state, and the test results have low credibility. In view of the above problems, the working principle and technical indicators of the conductivity array needle probe production profile logging instrument are described, and its application in scheme design and the effect evaluation of the water shutoff of the mechanical production wells are discussed. The application shows that the accuracy of moisture content test of the conductive array needle probe production profile logging instrument is relatively high. Before the water shutoff of the machine production well, the conductive array needle probe production profile logging interpretation results should be used to determine the water shutoff target horizon. For mechanical oil production wells, it is advisable to use the wellhead oil method to determine the liquid production and water content after mechanical water shutoff. The mechanical production wells for chemical water shutoff should be tested again to determine the water shutoff effect.
引文
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[13] 王百,吕亿明,甘庆明,等.长庆低渗透油田水平井机械堵水工艺[J].大庆石油地质与开发,2014,33(1):111-115.
[2] 冯雪龙,寇明富,熊寿辉,等.套管漏失封堵技术探讨[J].钻采工艺,2018,41(2):127-129.
[3] 王金友,刘宗宗,陈佳丽,等.采油井分层监测及产液控制技术研究及应用[J].钻采工艺,2017,2(2):44-46.
[4] 崔剑.产液剖面资料在封堵措施过程中的应用[J].石油管材与仪器,2016,2(2):98-100.
[5] 房乾,郑旭,倪莉,等.阻抗式产出剖面测井仪动态测全水机构设计及应用[J].石油仪器,2014,28 (5):63-66.
[6] 房乾,朱庆军,陈蕾,等.一种新型阵列探针产出剖面测井仪[J].石油仪器,2012,26(6):46-48.
[7] 朱庆军.阵列探针测井在油田开发动态监测中的应用[J].石油管材与仪器,2015,1(4):57-60.
[8] 胡金海,刘兴斌,刘继新,等.阵列电导探针流体成像仪在油水两相下的实验[J].石油仪器,2013,27(1):18-20.
[9] 王淑萍.阵列探针产出剖面测井仪性能评价[J].大庆石油地质与开发,2016,35(4):152-155.
[10] 房乾,张先华,张宇,等.一种单芯遥测电导阵列探针产出剖面测井仪的研制[J].石油管材与仪器,2018,4(2):16-19.
[11] 杨志鹏,王金友,王俊亮,等.机采井机械细分可调堵水技术[J].大庆石油地质与开发,2001,20(6):39-40.
[12] 刚振宝,卫秀芬.大庆油田机械堵水技术回顾与展望[J].特种油气藏,2006,13(2):9-11,18.
[13] 王百,吕亿明,甘庆明,等.长庆低渗透油田水平井机械堵水工艺[J].大庆石油地质与开发,2014,33(1):111-115.