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Showing 1 to 17 of 17 for “"Fractured reservoir"”.
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A Connectivity-based Hierarchical Model for Naturally Fractured Reservoir Simulation
Naturally fractured reservoirs usually contain multi-scale fractures with a wide range of fracture lengths and various topologies. Modeling of such fractured systems has traditionally followed a multi-scale approach, in which the selection of the numerical models is purely based on the fracture …
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Simulating water tracer test in naturally fractured reservoirs using discrete fracture and dual porosity models
A naturally fractured reservoir (NFR) is a reservoir with a connected network of fractures created by natural processes such as diastrophism and volume shrinkage (Ordonez et al. 2001). There are two models to simulate this kind of reservoirs: the discrete fracture model and the dual porosity model. …
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Seismic scattering attributes to estimate reservoir fracture density : a numerical modeling study
… to generate synthetic seismograms from a simple fractured reservoir containing evenly-spaced, discrete, vertical fracture zones. The fracture zones are represented using a single column of anisotropic grid points. In our experiments, we vary the spacing of the fracture zones from 10-meters to …
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Fracture Modeling and Flow Behavior in Shale Gas Reservoirs Using Discrete Fracture Networks
Fluid flow process in fractured reservoirs is controlled primarily by the connectivity of fractures. The presence of fractures in these reservoirs significantly affects the mechanism of fluid flow. They have led to problems in the reservoir which results in early water breakthroughs, reduced …
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Transient Shape Factors for Thermal Flow Simulation in Fractured Reservoirs
The simulation of naturally fractured reservoirs (NFRs) is an extremely daunting and challenging task. The most important and difficult aspect of modeling a naturally fractured reservoir is the accurate estimation of the fluid exchange between matrix and surrounded fractures, which is modeled via a …
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Geomechanical aspects of fracture growth in a poroelastic, chemically reactive environment
… permeability and porosity of the naturally fractured reservoir. However, the competition is trivial in high-permeability rocks. Other factors, such as reservoir boundary condition, layer thickness, subcritical index and pattern development stage, all have considerable impact on fracture …
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Heavy Oil Recovery by Gas Assisted Gravity Drainage in Naturally Fractured Reservoirs
Most of the consolidated rock reservoirs are to some extent naturally fractured, but when the fractures do not affect the fluid flow, they are not taken in account and the reservoirs can be modelled as conventional reservoirs. However, in some reservoirs the fractures play a large role in the fluid …
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Seismic characterization of fractured reservoirs (part I) ; Crustal deformation in the Tibetan Plateau (part II)
… of using P-waves to investigate properties of fractured reservoirs and the diagnostic ability of the P-wave seismic data to detect fractures. The objectives of this thesis are threefold: (1) to identify the effects of fracture parameters and background media on the NMO velocities and azimuthal …
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Simultaneous Multiple Plane to Plane Waterflooding in Fractured Tight Reservoirs
Waterflooding is common in conventional reservoirs, but efforts to apply waterflooding to unconventional tight oil formations have not met much success. The purpose of this research is to investigate the effectiveness of a novel 3-well pattern using horizontal wells (one injector and two producers, …
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THREE-DIMENSIONAL MODELING OF HYDRAULIC AND NATURAL FRACTURE INTERACTIONS AND ITS APPLICATIONS IN RESERVOIR STIMULATION
… of the unconventional and geothermal reservoirs can be increased for economic production by hydraulic fracturing. Natural fractures and other discontinuities are inseparable elements of unconventional reservoir rock masses. During stimulation, hydraulic fractures often interact with …
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Investigation of changes in permeability due to poro-thermo-elastic effects in enhanced geothermal reservoirs
… of cold water over a longer term in geothermal reservoirs is presented. A hybrid of tectonic simulation and stochastic analysis of field data is utilized to generate the subsurface fracture map of three formations. For this purpose, a geological structure is reconstructed according to its past …
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Geomechanically coupled modelling of fluid flow partitioning in fractured porous media.
Naturally fractured reservoirs are characterised with complex hydro-mechanical dynamics. In these reservoirs, hydrocarbons can be stored and produced from the rock matrix, the fracture network, or both. Normally the fracture network is depleted much faster than the matrix blocks due to its …
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Fracture Growth Kinematics in Tight Sandstone Reservoirs
… of fractures in low permeability sandstone reservoirs is essential for optimal hydrocarbon exploitation. In a linear elastic fracture mechanics framework, it is generally assumed that fractures widen in aperture while they propagate in length or height. However, it is also conceivable that a …
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Mechanisms of fracture complexity and topology of fracture systems induced by hydraulic fracturing
Stimulated reservoir volume (SRV) is a prime factor controlling well performance in unconventional shale plays. In general, SRV describes the topology of induced fractures by hydraulic fracturing. Natural fractures (NFs), such as joints and faults, are ubiquitous in oil and gas reservoirs, where …
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Pore-scale dynamics of immiscible two-phase flow on porous and fractured media
… imbibition, a key oil recovery mechanism in the fractured reservoir rocks. A pore-scale computational study of the water imbibition into an articially generated dual-permeability porous matrix with a fracture attached on top is conducted. Several factors affecting the dynamic counter-current …
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Modeling fluid imbibition for hydraulic fracturing and its implications on unconventional hydrocarbon recovery
The deliverability of a hydraulically fractured well relies on three segments: fluid flow from matrix to the contact surface between fracture and matrix media, fluid-rock-ion interactions at the fracture-matrix interface, and conductivity of fracture network in the created stimulated reservoir …
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Imaging a Hydraulically Fractured Bakken Shale Reservoir Using 4D-Tomography and Reverse VSP Techniques with Perforation Shot Sources
Hydrocarbon production from shale reservoirs varies considerably from one location to another in the same well. This variation can be due to geologic factors but also due to variabilities in the reservoir’ stimulation. Seismic images may be inconclusive in identifying areas where hydraulic …