UWB Borehole Logging Tool to Explore the Electrical and Structural Properties of Near-wellbore Fluid-filled Areas
In this paper,we studied the feasibility for the UWB Borehole Electromagnetic Logging Tool(BELT)considered in 1 to be applied for detecting the size of the zone of penetration of mud filtrate in the native rock of oil and gas reservoir and measuring the dielectric spectra of this zone.To this end there were studied the amplitude ratio and phase difference for the sounding pulse spectrum at the output of receiving antennas,spaced along the borehole,as a function of range of the flushed zone and enclosing rock.Such computer simulations were carried out to cover a number of realistic radial profiles for the petrophysical properties of the near-wellbore area.In this case,the radial profiles of respective complex dielectric constant were calculated on the basis of the dielectric model substantiated in 2,provided the temperature,salinity of brine water,and the petrophysical parameters of the near-wellbore area are known.There was studied relationship between the amplitude ratio and phase difference of the spectrum components of sounding pulses,on the one hand,and the petrophysical parameters of the near-wellbore area,on the other hand.The complex dielectric spectra in the near-wellbore area were shown to be retrieved with the use of the BELT proposed.
M.I.Epov V.L.Mironov K.V.Muzalevskiy I.N.Yeltsov
Trofimuk Institute of Petroleum Geology and Geophysics SB RAS,the Russian Federation Kirensky Institute of Physics,SB RAS Reshetnev Siberian State Aerospace University,the Russian Feder
国际会议
Progress in Electromagnetics Research Symposium 2011(2011年电磁学研究新进展学术研讨会)
苏州
英文
59-62
2011-09-01（万方平台首次上网日期，不代表论文的发表时间）