The Los Alamos Hot Dry Rock Reservoir is an experimental geothermal project in north-central New Mexico. A fractured zone was created within otherwise impermeable igneous and metamorphic rock by injecting water into a borehole under high pressure, at about 3.5 km depth. During the injection process, the seismic waves created by the fracturing events were recorded by seismometers located in four...

Fracture characteristics—such as orientation, type, fluid storage capability, and permeability—are complex yet essential information for understanding fractured reservoirs. Fractures are often perceived as permeable pathways, although many fractures partially or completely inhibit permeability within a reservoir. For example, opening-mode fractures (joints) may be partially or entirely sealed h...

Imaging and characterizing fractured shale reservoirs constitute significant challenges. We introduce a workflow and illustrate the application of instantaneous spectral analysis with the aid of a case study on fractured shale reservoirs. With the well log modeling, frequency dependent energy and phase are improved by removing the wavelet overprint. Extracted frequency dependent energy and phas...

At the Sidi Bouzid area located in Central Tunisia, Cenomanian-Turonian reservoir rocks are well outcropping, especially in the Jebel el Kébar and Meloussi areas. The present work confirms that these carbonate intervals constitute the lateral equivalent of the Early-Middle Turonian Biréno and Late Turonian-Coniacian Douleb reservoir Members which are included within the pelagic marls of the Tur...

Numerical Simulation of Three-Phase Flow in Deforming Fractured Reservoirs — The mathematical formulation of a three-phase, three-dimensional fluid flow and rock deformation in fractured reservoirs is presented in this paper. The present formulation accounts for the significant influence of coupling between the fluid flow and solid deformation, an aspect usually ignored in the reservoir simulat...

The water blocking damage to the reservoir caused by invasion of external fluid is one main factors that affect efficient development tight sandstone gas reservoirs. In this paper, microfluidic chip technology used explore causes in porous media and find suitable recovery solutions. research results show reducing gas-liquid capillary pressure can effectively reduce rate quantity spontaneous spe...

To assess the high-pressure production characteristics of double-vug reservoirs with bottom water in Tahe Oilfield, this study, a physical simulation experiment apparatus is built for water. The “vug-fracture-vug” under different are studied experimentally, and fracture-vug relationship oil recovery rates explored. According to findings, rate significantly affects development effect water, prov...

Abstract Proppant embedment mainly accounts for diminishing fracture aperture and conductivity. The conductivity decrease could greatly restrict fluid flow, thereby affecting the well performance. In this paper, new mathematical models are derived to calculate proppant after hydraulic fracturing. These take three crucial factors into consideration, including instantaneous elastic deformation, c...