FIELD: induction logging services engineering.
SUBSTANCE: method for determining specific electric resistance of layered formation around well shaft, infiltrated with well fluid, includes operation of calculation of first value of indications of device for induction logging services by solving for each layer of formation of Maxwell equations system for electromagnetic field by means of one-dimension model of concentric cylinder, not considering effect from formation layers and direction of logging services device relatively to layers in formation. For each layer of formation equivalent specific resistance is determined, which produces for homogenous environment value of device indications equal to first value. For several logging points Maxwell equations are solved by one-dimension model of layers, using equivalent specific resistances, calculated before. Also, effect from formation layers and logging services device direction relatively to formation layers is taken into consideration to provide for calculated diagram of induction logging services of device.
EFFECT: higher speed of operation.
2 cl, 5 dwg
