The time-frequency electromagnetic （TFEM） method combines frequency-domain sounding with time-domain sounding to form a comprehensive system so that it is possible to select different frequencies and induce waves ac...The time-frequency electromagnetic （TFEM） method combines frequency-domain sounding with time-domain sounding to form a comprehensive system so that it is possible to select different frequencies and induce waves according to the objective depth to be explored. During processing not only resistivity but also polarization information can be provided so we can study resistivity as well as predict oil-bearing characteristics simultaneously. Timedomain resistivity information is obtained by pseudo-2D resistivity inversion and frequencydomain IP information is obtained using the Cole-Cole model. Some successful applications in western China show that it provides unique results in an overthrust zone, deep igneous rock investigation, and hydrocarbon prediction.展开更多
时频电磁法(Time and Frequency Electric Method,简称TFEM)作为一种新的勘探技术已逐渐应用于实际生产,它对油气有利区预测、钻井成功率提高等方面具有重要的促进作用。为了提高TFEM方法解释的可靠性,降低勘探的风险,在以往的极化率电...时频电磁法(Time and Frequency Electric Method,简称TFEM)作为一种新的勘探技术已逐渐应用于实际生产,它对油气有利区预测、钻井成功率提高等方面具有重要的促进作用。为了提高TFEM方法解释的可靠性,降低勘探的风险,在以往的极化率电阻率(Induced Polarizability and Resistivity,简称IPR)解释系统的基础上,加入振幅(Amplitude)和相位(Phase),形成了幅相-极化率电阻率(Amplitude and Phase–Induced Polarizability and Resistivity,简称AP-IPR)解释系统。该新系统不仅丰富了解释参数,提高了油气指向性;而且它规范了解释流程,缩短了解释周期,提高了解释的准确性,赢得了更大的应用范围。展开更多
基金supported by the Project supported by the Jiangsu Province Carbon Peak Carbon Neutral Technology Innovation Project in China(BE2022034)the Sinopec Science and Technology Research Project(No.P21079-3 and No.P22090)the Shengli Oilfi eld Company Science and Technology Research Project(No.YKS2201).
文摘The time-frequency electromagnetic （TFEM） method combines frequency-domain sounding with time-domain sounding to form a comprehensive system so that it is possible to select different frequencies and induce waves according to the objective depth to be explored. During processing not only resistivity but also polarization information can be provided so we can study resistivity as well as predict oil-bearing characteristics simultaneously. Timedomain resistivity information is obtained by pseudo-2D resistivity inversion and frequencydomain IP information is obtained using the Cole-Cole model. Some successful applications in western China show that it provides unique results in an overthrust zone, deep igneous rock investigation, and hydrocarbon prediction.
文摘时频电磁法(Time and Frequency Electric Method,简称TFEM)作为一种新的勘探技术已逐渐应用于实际生产,它对油气有利区预测、钻井成功率提高等方面具有重要的促进作用。为了提高TFEM方法解释的可靠性,降低勘探的风险,在以往的极化率电阻率(Induced Polarizability and Resistivity,简称IPR)解释系统的基础上,加入振幅(Amplitude)和相位(Phase),形成了幅相-极化率电阻率(Amplitude and Phase–Induced Polarizability and Resistivity,简称AP-IPR)解释系统。该新系统不仅丰富了解释参数,提高了油气指向性;而且它规范了解释流程,缩短了解释周期,提高了解释的准确性,赢得了更大的应用范围。
