The Experts below are selected from a list of 273 Experts worldwide ranked by ideXlab platform

Dale Walters - One of the best experts on this subject based on the ideXlab platform.

  • land uplift due to subsurface Fluid Injection
    Journal of Geodynamics, 2011
    Co-Authors: Pietro Teatini, Giuseppe Gambolati, Massimiliano Ferronato, Antoni Settari, Dale Walters
    Abstract:

    The subsurface Injection of Fluid (water, gas, vapour) occurs worldwide for a variety of purposes, e.g. to enhance oil production (EOR), store gas in depleted gas/oil fields, recharge overdrafted aquifer systems (ASR), and mitigate anthropogenic land subsidence. Irrespective of the Injection target, some areas have experienced an observed land uplift ranging from a few millimetres to tens of centimetres over a time period of a few months to several years depending on the quantity and spatial distribution of the Fluid used, pore pressure increase, geological setting (depth, thickness, and area extent), and hydro-geomechanical properties of the injected formation. The present paper reviews the fundamental geomechanical processes that govern land upheaval due to Fluid Injection in the subsurface and presents a survey of some interesting examples of anthropogenic uplift measured in the past by the traditional levelling technique and in recent times with the aid of satellite technology. The examples addressed include Long Beach, Santa Clara Valley, and Santa Ana basin, California; Las Vegas Valley, Nevada; Cold Lake and other similar sites, Canada; Tokyo and Osaka, Japan; Taipei, Taiwan; Krechba, Algeria; Upper Palatinate, Germany; Chioggia and Ravenna, Italy.

Abigail Hackston - One of the best experts on this subject based on the ideXlab platform.

James G. Berryman - One of the best experts on this subject based on the ideXlab platform.

  • Role of Fluid Injection in the evolution of fractured reservoirs
    International Journal of Engineering Science, 2016
    Co-Authors: James G. Berryman
    Abstract:

    Abstract A survey is provided of some of the better known examples of quantitative results during Fluid Injection on number, quality, and weakening effects for fractures in earth reservoirs along with some comparisons to either well-known or better-known theories of both fracture arrival and/or new growth of existing fractures through both Fluid Injection and stress application. The detailed analyses presented focus on reservoirs having (at worst) orthotropic symmetry.

Hund-der Yeh - One of the best experts on this subject based on the ideXlab platform.

  • Transient analysis for Fluid Injection into a dome reservoir
    Advances in Water Resources, 2011
    Co-Authors: Chia Chen Kuo, Ching Sheng Huang, Hund-der Yeh
    Abstract:

    A dome-shaped layer can be selected as a storage site for Fluid Injection. In this study, we develop a mathematical model for simulating transient head distribution in a heterogeneous and anisotropic dome-shaped layer due to a constant-head Injection in a fully penetrating well. In the model, a form of step change is adopted to approximate the upper and lower boundaries of the dome and then the layer is split into two regions. The Laplace-domain solution of the model is developed using the Laplace transform and method of separation of variables. The transient Injection rate at wellbore can then be obtained based on Darcy’s law and Bromwich integral method. The predicted head contours from the head solution show significant vertical flow components near the location of step change in the dome reservoir. The results of sensitivity analysis indicate that the hydraulic conductivity is the most sensitive parameter and the specific storage is the least sensitive one to the Injection rate after a short period of Injection time. In addition, the Injection rate for a dome reservoir is also very sensitive to the change of the height for the reservoir near the Injection well (first region) at a very early Injection time. In contrast, the Injection rate is more sensitive to the change of the height of the second region than that of the first region at late time. This analytical solution may be used as a primary tool to assess the capacity of Fluid Injection to various dome reservoirs.

Frédéric Cappa - One of the best experts on this subject based on the ideXlab platform.

  • stabilization of fault slip by Fluid Injection in the laboratory and in situ
    Science Advances, 2019
    Co-Authors: Frédéric Cappa, Yves Guglielmi, M M Scuderi, Cristiano Collettini, J-philippe Avouac
    Abstract:

    Faults can slip seismically or aseismically depending on their hydromechanical properties, which can be measured in the laboratory. Here, we demonstrate that fault slip induced by Fluid Injection in a natural fault at the decametric scale is quantitatively consistent with fault slip and frictional properties measured in the laboratory. The increase in Fluid pressure first induces accelerating aseismic creep and fault opening. As the Fluid pressure increases further, friction becomes mainly rate strengthening, favoring aseismic slip. Our study reveals how coupling between fault slip and Fluid flow promotes stable fault creep during Fluid Injection. Seismicity is most probably triggered indirectly by the Fluid Injection due to loading of nonpressurized fault patches by aseismic creep.

  • Seismic velocity changes associated with aseismic deformations of a fault stimulated by Fluid Injection
    Geophysical Research Letters, 2016
    Co-Authors: Diane Rivet, Frédéric Cappa, Louis De Barros, Yves Guglielmi, R Castilla, Pierre Henry
    Abstract:

    Fluid pressure plays an important role in the stability of tectonic faults. However, the in situ mechanical response of faults to Fluid-pressure variations is still poorly known. To address this question, we performed a Fluid-Injection experiment in a fault zone in shales while monitoring fault movements at the Injection source and seismic velocity variations from a near-distance (

  • seismicity triggered by Fluid Injection induced aseismic slip
    Science, 2015
    Co-Authors: Yves Guglielmi, Frédéric Cappa, Pierre Henry, J-philippe Avouac, D. Elsworth
    Abstract:

    Anthropogenic Fluid Injections are known to induce earthquakes. The mechanisms involved are poorly understood, and our ability to assess the seismic hazard associated with geothermal energy or unconventional hydrocarbon production remains limited. We directly measure fault slip and seismicity induced by Fluid Injection into a natural fault. We observe highly dilatant and slow [~4 micrometers per second (µm/s)] aseismic slip associated with a 20-fold increase of permeability, which transitions to faster slip (~10 µm/s) associated with reduced dilatancy and micro-earthquakes. Most aseismic slip occurs within the Fluid-pressurized zone and obeys a rate-strengthening friction law µ = 0.67 + 0.045ln (v/v_0) with v_0 = 0.1 µm/s. Fluid Injection primarily triggers aseismic slip in this experiment, with micro-earthquakes being an indirect effect mediated by aseismic creep.