... Natural remanent magnetization (NRM) is the part of rock magnetism, which leads to more complex magnetic data inversion and interpretation. The conventional inversion methods focus on reducing the influence of the remanent magnetization and recovering the depth and shape of magnetic sources...

... applications. but in this paper we demonstrate its implementation and performance in 3D magnetic inversion. For inversions with Theory and Method petrophysical information, we constrain the upper and lower bounds of physical properties by adding indicator functions. A geophysical forward modeling problem has...

...Research on the magnetic structure of the South China Sea based on the three-dimensional magnetic inversion with variable inclination and declination Liting Jing1*, Ming Hu1, Yongtao Wang2 1 State Key Laboratory of Marine Geology, Tongji University 2 BGP China National Petroleum Corporation Summary...

... Anisotropic magnetic susceptibility (AMS), as an intrinsic property, has been used widely in geological studies based on direct sample measurements. However, its application through geophysical data interpretations is rare despite its influence on the induced magnetization has been noted...

... In this paper, we develop a method of jointly inverting airborne gravity gradiometry (AGG) and total magnetic intensity (TMI) data in the presence of remanent magnetization. The goal is to obtain structurally similar 3D density and magnetization models. In addition, in the areas with remanent...

... In oil & gas exploration, magnetic anomaly caused by reverse remanent magnetism is often ignored. With the exploration step moving to the fine stage, this problem needs to be paid great attention by the processing and interpretation researcher. In large area data processing, it is difficult...

... at the 2020 SEG Annual Meeting. reservoir characterization objective function cluster center upstream oil & gas constraint cluster center machine learning fcm physical property fcm algorithm fuzzy c-mean inversed result geophysics magnetization artificial intelligence priori...

... ABSTRACT We propose a technique to reconstruct the magnetic anomaly from a dike in a way that the influence of the induced magnetization, remanent magnetization, and geological dip are completely removed, resulting in a new totally symmetric anomaly that could avoid the need of reduction...

... ABSTRACT We propose the use of the amplitude of the magnetic vector (B) for qualitative interpretation at low latitudes. The B is computed from transforming the total-field anomaly into the three orthogonal components in the x-, y-, and z-directions. The B generates a maximum over the source...

... ABSTRACT We present a method to constrain magnetic inversions by magnetotelluric (MT) sounding data at sparse locations for the purpose of imaging volcanic units in the gas exploration. Magnetic data are a cost-efficient means to map volcanic units but lack the necessary depth information. MT...

... ABSTRACT A simple relation exists between the depth to basement and gravity or pseudo-gravity fields. Based on this relation, a method to recover the density (or magnetization) contrast function and the basement morphology under sedimentary basins is developed. Use of this method is possible...

... ABSTRACT Anisotropic magnetic susceptibility (AMS) contains information about the internal structure of magnetic geologic units and may have the potential to provide information about their formation history and subsequent geologic processes to witch these units were subjected. We examine...

... ABSTRACT Magnetization inversion provides an effective way of interpreting magnetic data complicated by remanence. The magnetization directions recovered from magnetization inversion contain important information that is useful for geology differentiation. However, assessing the uncertainty...

...Forward modelling of long-wavelength magnetic anomalies from the upper mantle Forward modelling of long-wavelength magnetic anomalies from the upper mantle Chijioke M. Idoko * , Department of Geology, Southern Illinois University Carbondale James A. Conder 1 , Department of Geology, Southern...

... ABSTRACT The effect of remanence has long been recognized as an obstacle for the interpretation and modeling of magnetic data. In this paper, we propose a Cooperative Magnetic Inversion (CMI) algorithm for the 3-D inversion of magnetic data affected by remanent magnetization. The CMI algorithm...

... ABSTRACT Potential field exploration generates a large amount of data, which require special techniques of high-adaptability and high-speed to process meaningfully. This paper proposed an inversion method for gravity gradiometry data, generalized from magnetic dipole localization method...

... ABSTRACT The convertional approaches for apparent magnetization mapping usually neglect effects of remanence, resulting in large geologic deviation or occurrence of negative magnetization when the subsurface contains strong remanent magnetization. We present a space-domain inversion approach...

... remanent magnetization seg seg international exposition magnetic anomaly forward computed inversion magnetization south australia tmi image multiple magnetization annual meeting magnetic field data anomaly reference list magnetization body reservoir characterization magnetization...

...3D joint inversion of magnetic amplitude and gravity gradiometry data in spherical coordinates Haoran Wang*1,2, Yaoguo Li2 and Chao Chen2 1 Institute of Geophysics & Geomatics, China University of Geosciences (Wuhan); 2Center for Gravity, Electrical and Magnetic Studies, Department of Geophysics...

...Robust parametric inversion using adaptive quenched simulated annealing Richard Krahenbuhl Yaoguo Li Center for Gravity, Electrical & Magnetic Studies (CGEM), Dept. of Geophysics, Colorado School of Mines SUMMARY There is a class of inverse problems in applied geophysics that is well described...