Zyfra Geonaft – ENG

• Geosteering modeling based on synthetic well log curves, which are planned to be recorded during drilling
• Forming up reports on the geosteering progress
• Well path optimization in terms of wellbore stability
• Data visualization in the threedimensional space
• Forming up the final report

• Integrating the structural subsurface model, petrophysical and logging data within the concept of well placement
• Real-time well path adjustment based on synthetic and actual log data comparison
• Interwell correlation analysis
• Petrophysical data analysis
• Geomechanical model construction

• Creating a geosteering model with synthetic logs
• Construction of pre-drill geosteering model and real-time model updating during drilling
• Creating geosteering progress reports and further drilling recommendations

• Creating a geosteering model with synthetic logs
• Construction of pre-drill geosteering model and real-time model updating during drilling
• Creating geosteering progress reports and further drilling recommendations

• Custom objects visualization.
• Easy-to-use navigation tool.
• Preparation and printing of images for daily reports.

• Direct and easy import of surfaces from Petrel.
• Real-time update of the well path and dip data according to the actual drilling information.
• Local and regional dips comparison.

• Can be used to independently define the dip angles with high accuracy.
• Creates a geosteering model based on up-to-date technology using the Azimuthal Borehole Images.
• Defines the trajectory of the well relative to the reservoir with high precision.

• Using the azimuthal logging data allows to define the angle between wellbore and geological stratifications.
• Minimizes geosteering costs.

• Real-time data streaming into all Geonaft modules.
• Supports WITSML data format – an international industry standard for real-time data transfer.

• Minimizes «human error» during the data upload process.
• Decreases the decision-making time, which in turn, improves drilling efficiency and well placement.

• 3D Geomechanical models construction, based on Finite Element Method
• Stress tensors determination for further wellbore stability analysis, hydrofracture simulation, sand production prediction, and any other geomechanical problem
• Stress tensors determination throughout the field with any complexity of geological structure and rock properties heterogeneity

• 3D Petrophysical models construction, based on well logs: stochastic and deterministic methods
• Principal stresses calculation, determination of stress profiles along arbitrary wellbore
• Wellbore stability analysis, based on principal stresses determined with 3D Geomechanical model
• 3D visualization of input and output data; principal stresses visualization as vectors

• Overburden pressure calculation.
• Pore Pressure and Fracture Gradient
• Pore pressure prediction and calibration.

• Taking into account centroid and fluid buoyancy effects, including hydrocarbon column height.
• Eaton’s and Miller’s methods for pore pressure prediction.
• Matthews-Kelly method for fracture gradient prediction.

• Wellbore stability analysis.
• Safe mud weight window determination.
• Well path optimization in terms of borehole mechanical stability.
• Sensitivity analysis with respect to borehole inclination and azimuth.

• Recommendations for optimal depths of casing shoes.
• Preparation of input data for cementing program.
• Annual pressure control with respect to safe mud weight limits.