PNST脉冲中子全谱测井仪在冀东油田的新应用
|
摘要
至2017年底PNST脉冲中子全谱测井仪在冀东油田应用83井次,依据测井资料综合分析选层,措施后增油5. 17×104t。2017年之前,在冀东南堡油田PNST剩余油测井资料的措施符合率只有70%。南堡油田主力开发层系的砂岩储层富含钙质,针对性地研究与应用了PNST碳氧比测井解释的钙质校正方法。应用钙质校正方法后,PNST剩余油饱和度测井成果为南堡油田制订堵水、补孔方案提供了有效依据,90%以上的井措施后明显增油。测井实例表明,在冀东南堡油田PNST测井资料能够准确区分油水层和判断油层水淹程度。
By the end of 2017,the Pulsed Neutron Spectral Tool(PNST) has already been applied in 83 wells in Jidong oilfield. The measures based on the comprehensive analysis with its logging data have been taken,and the increase of the oil production by 5. 17 × 104 t has been obtained. Before 2017,the efficient rate of the measures based on PNST logging interpretations of remaining oil in Jidong Nanpu oilfield was only 70%. The calcium correction method for interpreting the PNST C/O logging was studied and applied in Nanpu oilfield,where the large amount of calcium exists in its mainly developed sandstone reservoirs. After applying the correction method,the oil saturation interpretation results of PNST logging provided an effective basis for formulating measures of water shutoff and re-perforation for Nanpu oilfield,and oil production increased significantly in more than 90% wells following the measures. The field examples showed that the PNST logging data can accurately distinguish oil and water layers and determine water flooded degree of oil layer in Jidong Nanpu oilfield.
By the end of 2017,the Pulsed Neutron Spectral Tool(PNST) has already been applied in 83 wells in Jidong oilfield. The measures based on the comprehensive analysis with its logging data have been taken,and the increase of the oil production by 5. 17 × 104 t has been obtained. Before 2017,the efficient rate of the measures based on PNST logging interpretations of remaining oil in Jidong Nanpu oilfield was only 70%. The calcium correction method for interpreting the PNST C/O logging was studied and applied in Nanpu oilfield,where the large amount of calcium exists in its mainly developed sandstone reservoirs. After applying the correction method,the oil saturation interpretation results of PNST logging provided an effective basis for formulating measures of water shutoff and re-perforation for Nanpu oilfield,and oil production increased significantly in more than 90% wells following the measures. The field examples showed that the PNST logging data can accurately distinguish oil and water layers and determine water flooded degree of oil layer in Jidong Nanpu oilfield.
引文
[1]郑华,董建华,刘宪伟. PNST脉冲中子全谱测井仪[J].测井技术,2011,35(1):83-88.
[2]郑华,刘宪伟,董建华,等. PNST脉冲中子全谱测井仪在大庆油田的应用[J].测井技术,2013,37(5):541-546.
[3]董兰芳. PNST脉冲中子全谱测井仪在高尚堡油田浅南区的应用[J].石油管材与仪器,2015,1(6):48-51.
[4]吕俊涛.脉冲中子全谱测井技术及其在冀东油田的应用[J].石油管材与仪器,2016,2(3):53-57.
[5]肖勇. PNST脉冲中子全谱测井技术在冀东油田的应用[J].石油管材与仪器,2016,2(5):87-91.
[6]陈芙,轩玲玲,董金平,等.碳氧比能谱测井技术在南堡陆地浅层油藏的应用[J].内蒙古石油化工,2011,37(10):176-178.
[7]郑华,梁庆宝,沈付建,等.利用PNST测井资料评价示踪陶粒压裂裂缝Ⅰ:能谱[J].测井技术,2016,40(6):739-745.
[8]郑华,梁庆宝,王峰,等.利用PNST测井评价示踪陶粒压裂裂缝Ⅱ:时间谱[J].测井技术,2017,41(1):26-32.
[9]朱光有,张水昌,王拥军,等.渤海湾盆地南堡大油田的形成条件与富集机制[J].地质学报,2011,85(1):97-113.
[10]司兆伟,孔祥生,梁忠奎,等.低对比度油气层形成机理新认识与测井解释方法研究[J].测井技术,2016,40(1):56-59.
[2]郑华,刘宪伟,董建华,等. PNST脉冲中子全谱测井仪在大庆油田的应用[J].测井技术,2013,37(5):541-546.
[3]董兰芳. PNST脉冲中子全谱测井仪在高尚堡油田浅南区的应用[J].石油管材与仪器,2015,1(6):48-51.
[4]吕俊涛.脉冲中子全谱测井技术及其在冀东油田的应用[J].石油管材与仪器,2016,2(3):53-57.
[5]肖勇. PNST脉冲中子全谱测井技术在冀东油田的应用[J].石油管材与仪器,2016,2(5):87-91.
[6]陈芙,轩玲玲,董金平,等.碳氧比能谱测井技术在南堡陆地浅层油藏的应用[J].内蒙古石油化工,2011,37(10):176-178.
[7]郑华,梁庆宝,沈付建,等.利用PNST测井资料评价示踪陶粒压裂裂缝Ⅰ:能谱[J].测井技术,2016,40(6):739-745.
[8]郑华,梁庆宝,王峰,等.利用PNST测井评价示踪陶粒压裂裂缝Ⅱ:时间谱[J].测井技术,2017,41(1):26-32.
[9]朱光有,张水昌,王拥军,等.渤海湾盆地南堡大油田的形成条件与富集机制[J].地质学报,2011,85(1):97-113.
[10]司兆伟,孔祥生,梁忠奎,等.低对比度油气层形成机理新认识与测井解释方法研究[J].测井技术,2016,40(1):56-59.