Gohfer cracked version is the leading integrated well design and optimization software package! This is recognized in the industry as the main hydraulic fracturing simulator, containing all the tools required for conventional and unconventional completion design, analysis and optimization.
GOHFER software calculates inputs from all disciplines of petroleum engineering, including rock physics, geology, geophysics, drilling, reservoirs and completions.
The GOHFER software project integrates all these disciplines and generates a coherent three-dimensional (3D) reservoir and geomechanical model for unconventional and conventional reservoirs. GOHFER software is the most powerful and comprehensive tool in the petroleum industry for designing, analyzing and optimizing hydraulic fracturing and acid fracturing stimulation measures. It can fully meet the simulation needs of users!
Features
1. Multidisciplinary integration with GOHFER® fracture modeling software
1. 3D multi-well analysis
»Multiple wells in the same model, including vertical and horizontal wells
»Geological guidance for branch pipes and engineering completions
»Easily overlay and display on a true vertical depth (TVD) grid with perforation locations
»Full 3D borehole directional measurement
»Calculate wellbore fracture pressure and direction along the entire wellbore
2. Rock physics
»Directly import digital logging, geological models and core data to build grids and stress profiles
»Full 3D geomechanical earth model
» Optional input of 2D surface maps with reference well logs
» Built-in correlations for synthetic mechanical rock properties and gas identification
» Ability to generate unique relationships and correlations
» Automatic log assistant function
3. Complex 3D grid analysis
» Allows vertical and lateral variations in grid properties
» Multi-layer completions, zipper fracturing and offset depletion effects
» Multiple perforation intervals and limited entry design
»» Allows complex 3D geological structures in vertical and lateral directions to simulate fracture growth in complex folded and faulted areas
»» Fluid composition, proppant concentration, shear, drainage leakage, width, pressure, viscosity and other state variables defined in each grid block
» Adjustable vertical to horizontal anisotropy
4. Transverse fractures
» Variable multi-well inter-stage/intra-stage fracture stress shadow interference factors calculated as a function of distance between fractures
» Multi-well/multi-stage/multi-cluster modeling capabilities for plug-and-play or drop-ball simulations
» Simulate crossflow during pumping and after shut-in until closure
» Fully rotating 3D view of all output variables updated in real time during model runs for all wells
» Fracture direction is determined by stress azimuth, independent of well orientation
5. Pressure Diagnostics
» Step rate analysis of pipe and near-wellbore friction, as well as effective opening number and fracture extension pressure
» DFITTM analysis, including determination of closure pressure, net extension pressure, efficiency, presence and stress state of natural fractures, major leak volumes and mechanisms, and reservoir flow
» Wellbore blowdown analysis to estimate tortuosity for more accurate instantaneous shut-in pressure (ISIP)
» Estimation of permeability from G-function
6. Production
» Handling clean-up, multiphase non-Darcy flow, and stress (proppant breakage) effects
» Proper handling of production disturbances in multiple lateral fractures in horizontal wells, Optimize fracture spacing in unconventional reservoir development
» Output stimulation efficiency details, including all accountable damage components, remaining effective fracture diversion, flow control device (FCD), infinite diversion effective length and designed net present value (NPV)
7. Production analysis
» Use actual production data to analyze post-fracture performance and evaluate stimulation effects
» Includes rate-transient curve analysis, decline curve analysis, production prediction to ultimate recovery and flow pattern identification
» Determine fracture spacing and effective well spacing for horizontal wells, as well as the proportion of producing lateral wells
8. Proppant database
» Includes a unique database of proppant materials that have been extensively studied under actual field conditions such as stress, time and temperature
» New proppants are continuously added
» Enter universal proppant correlations for user-defined proppants
9. Fluid database
» Powerful fluids from major service companies, including brine, acid, foam, cross-linking, high-concentration friction reducer (FR) and linear fluid rheology
» Ability to match laboratory rheology data to build a unique user database
II. GOHFER software advantages
Shear/slip decoupled fracture geometry
» Transmission » Vertical and horizontal anisotropy in seeding and transport solutions
» Time and space-dependent leakage
» Inhomogeneous solid-liquid velocities and fluid transport rates in fractures
» Iterative coupling of fluid pressure/proppant concentration distributions in fractures
» Internally calculated and geologically consistent geostresses
» Dealing with the effects of secondary fracturing systems on fluid leakage/proppant transport
» Carreau fluid rheology model
» Multi-stage horizontal well modeling with simultaneous vertical and lateral fracturing
» Production analysis, including rate-transient curves, decline curve analysis, and production forecasts
» Variable interstage/stage Internal fracture stress shadow interference factors
» Comprehensive log analysis package
» Limited entry design
» Complete pressure diagnostic analysis package
» Unique fracture conductivity and post-frac production models
» Accurate simulation of fracturing results as verified by tracer logs and microseismic surveys
» Fracture acidification and acid conductivity models
» Multiple wells in the same model, including vertical and horizontal wells
» Fracture stress-shadow interference between fractures and stages on each well
» Multi-layer completions, zipper fracturing and offset depletion effects
» Full 3D geomechanical earth model input (from Petrel GSLIB file)
» Optional input of 2D surface plots with reference well logs
» Geosteering for laterals and engineered completions
» Full processing of logs or “cores” from 3D earth models
»» Timing of zipper fracturing between wells or stages can be simulated, closing and relaxing induced pore pressures and strains
» Time evolution of pore pressure and coupled stress fields can be simulated
» Pore pressure depletion in adjacent wells significantly affects treatment of infill wells
» Effectiveness of “guard fracturing” and injection into existing wells can be evaluated
» GOHFER software supports output of fracture geometry and conductivity profiles for all fracture planes in CMG and Triplets file formats on all wells
» Microseismic event locations can be imported and displayed on 3D output, as well as generated fracture geometry