This article is a review of modular software package, designed to solve all of the problems of technological chain of the operation of hydraulic fracturing: from planning and designing to effectiveness analysis and real-time operation monitoring. The software package was developed by project consortium of specialized universities and institutions of RAS in cooperation with Gazpromneft Science & Technology Centre. The process of simulator development was split into two parts: development of modular platform with engineering tool kit for data processing and development of plug-ins, designed to model physical phenomena (processes). At the heart of calculation core lies hierarchy of models of hydraulic fracture development, which allows to model hydraulic fracturing in various geological conditions. For example, to model fracture propagation in uniform reservoir Pseudo 3D model is used. For modelling in reservoirs with various layer-dependent geomechanics and filtration properties Planar 3D model is used. To consider abnormal low or high pore pressure Planar 3D model is supplemented by taking into account the effects of poroelasticity. To model hydraulic fracture propagation in fractured reservoir, a special module is supposed to be used, which takes into account influence of natural fractures on the formation process of stimulated reservoir volume (SRV). A chain of sub-models was implemented to model proppant transport processes. These sub-models take into account different effects, such as proppant sedimentation, drift and bridging, which have great impact on final geometry and conductivity of hydraulically induced fracture. Simulator provides various tool kits for downloading, processing and interpretation of field data. Engineer can work with results of geophysical surveys, field injection tests, microseismic monitoring data or actual well productivity history. In the end a digital report is formed based on results of engineering support. It contains both, initial data and information about adjustments, implemented into planned design of hydraulic fracturing operation. Also, fracturing simulator contains a module, developed to optimize economical effectiveness of the operation by taking into account planned oil production. Hydraulic fracturing simulator «Cyber Frac» has successfully passed validation and approbation stages. Pilot tests were carried on real field data by specialists of Gazpromneft Science & Technology Centre. Currently, preparations for first industrial release are being finalized. Soon it will become available for external users.
- Control of multistage hydraulic fracturing operations
- Low-permeable reserves
- Modeling of fracture growth and proppant transport
- Optimization of fracturing design