... Abstract This paper represents a new two-way coupled flow and geomechanical simulation model that utilizes an Advanced Dual Porosity Dual Permeability (A-DPDK) model with local grid refinement (LGR). A hydraulic fracture's conductivity is strongly dependent on the effective stress on fracture...

... DCA method is introduced for reserve estimation and as a diagnostic tool for unconventional wells with long lateral length and with a great many hydraulic fractures. The method considers that the shale wells produce at flow rates that are influenced by in situ stresses. Namely, the reservoir matrix...

... based on single-well models assuming either infinite-acting reservoirs or fixed drainage boundaries. In unconventional reservoirs, increasing the horizontal-well surface area in contact with the reservoir through hydraulic fracturing is key to enhancing recovery. Many solutions, numerical, analytical...

... of underground formations and the lifting of overburden, GPS stores water within hydraulic fractures. This study aims to identify the most efficient GPS design to maximize energy storage in subsurface formations focusing on the hydraulic connection between the wellbore and the fractures. We developed...

... tensional strain rate signals are observed, showing the locations of hydraulic fractures intersecting the wellbore. A small initial fracture conductivity leads to high formation resistance to fluid circulation, revealing the reasons for the observed injection pressure build-up. The simulated pressure-rate...

... Abstract This paper is the progress report for the last two years of a three-year DOE funded project aimed at developing and constructing cost-effective hydraulic fracturing tools. These tools are intended to enable zonal isolation for subsurface heat exchange in Enhanced Geothermal Systems...

... indicates that the mechanical properties and spatial distribution of these natural fractures affect the propagation and diversion of hydraulic fractures, but the governing laws remain to be fully elucidated. This study categorizes the Luzhou Block's naturally fractured areas into six types based...

... Abstract Hydraulic fractures are often assumed to immediately stop growing once pumps are shut off after fracturing treatments. However, fluid momentum and rock properties may allow propagation to continue temporarily post-shut-in. The objective of this study is to determine if and under what...

... Abstract The interaction between natural and hydraulic fractures (HFs) results in the formation of complex fracture networks. A great deal of uncertainty exists around the geometry and connectivity of these fracture networks. The two primary objectives of this study are: (1) to show how...

... anomalous diffusion pvt measurement fracture fluid dynamics united states government hydraulic fracture flow in porous media gas-liquid anomalous diffusion ozkan saturation permeability reservoir complex reservoir diffusion equation jacobian matrix fraction multiphase flow unconventional...

... duplex transmission Downhole Electronics: UART & CAN 2.0 Modeling Background The initial concept of multi-stage hydraulic fracturing in the oil and gas industry is commonly associated with the DOE’s Devonian shale program in the late 1980’s ( Yost et al. 1988 ). Application...

... Fig. 1 shows a schematic diagram of the flow rate and pressure distribution of the slurry flow along a horizontal wellbore. The total injection rate is distributed into hydraulic fractures along the wellbore. The wellbore storage is neglected in flow rate calculation as the wellbore volume...

... ). Pressure interference of neighboring wells enters the solution of each well through its SRV boundary conditions. In the trilinear-flow model, flow in the SRV is 1D and parallel to the well (parallel to the SRV boundary and perpendicular to hydraulic fracture planes). Although the pressure changes along...

... Abstract Geological structures such as pre-existence of multiple bedding planes (BPs) significantly influence the hydraulic fracture height propagation in shale gas and shale oil reservoirs. Field engineers have also proved that fracture height is much lower than designed via monitoring...

... reservoir. A fully coupled geomechanical fracture-reservoir simulator is used to simulate full lifecycle of hydraulic fractured horizontal wells, which incorporates the creation of hydraulic fractures with proppant injection, post-frac closure, primary production, cycles of production, shut-in and reopening...

... inconsistent results, leading to large uncertainties in determining the minimum principal stress. This paper presents a series of small-scale laboratory hydraulic fracturing experiments conducted under true-triaxial compression. The injection scheme consists of a hydraulic fracturing cycle followed by a few...

... of these wells are subjected to hydraulic fracturing. For the development of tighter reservoirs (permeability, k = 0.1 md or less), hydraulic fracturing becomes somewhat essential. 1 A well is first drilled vertical or semi-vertical to the landing point in or above the reservoir section. An angle...

... testing pressure transient testing north america government reservoir characterization hydraulic fracture dfit slickwater unconventional reservoir hydraulic fracturing enhanced recovery pressure transient analysis kazemi nolte eff experiment forge pta coefficient modeling viscosity...

... Abstract It is widely recognized that hydraulic fracturing creates a region of altered permeability near the fracture/matrix interface. Although we have a limited understanding, it is believed this region plays an important role on the production rates. The objective of this study is to model...

... to constructing a related reservoir model. The reservoir model included 3 horizontal wells: A1, B1, and C1. The modeling of hydraulic fractures used logarithmic refinements of the grids perpendicular to the hydraulic fracture surface. In order to have an acceptable grid refinement mesh and an associated time step...