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Mechanical Degradation of Well Cement in HPHT Carbonic Acid Environment: Experimental Studies and Mathematical Modeling
(2016)
Cement exposed to brine saturated with CO2 gas undergoes combination of chemical processes leading to mechanical degradation after placement behind the casing. These processes are influenced by downhole conditions such as ...
Thermal Effects in Borehole Stability
(2010)
An accurate wellbore stability analysis depends strongly on the state of knowledge of the problem at hand. Almost in all cases, the state of knowledge for wellbore stability analyses is poor. Values of many parameters and ...
DYNAMIC DRILLING FLUIDS LOSS AND FILTRATION: IMPACT OF DYNAMIC WELLBORE CONDITIONS AND WELLBORE STRENGTHENING IMPLICATIONS
(2018-12-14)
Lost circulation (drilling fluid loss) and mud filtration have been investigated over the years because they lead to non-drilling time (NDT) and increase the overall well cost. It is usually the first source of damage to ...
IMPROVING THE EnKF FOR HISTORY MATCHING: MULTISCALE PARAMETERIZATION AND BOOTSTRAP-BASED SCREENING
(2010)
Although the ensemble Kalman filter (EnKF) has been remarkably successful for history matching and quantifying uncertainty in petroleum reservoirs, there have been problems with the use of small ensembles, and occasionally ...
CORROSION BEHAVIOR OF TUBULARS IN SOUR GAS ENVIRONMENT
(2017)
The existence of corrosive gases (CO2 and H2S) in oil wells under High-Pressure High-Temperature (HPHT) condition exacerbates the severity of tubular corrosion and increases the need for different corrosion mitigation ...
Three-dimensional fully coupled thermoporomechanical modelling of fractured reservoir rock
(2019-05-10)
The coupled behaviors of fluid flow, heat transport and geomechanics in fractured porous media are studied. Emphasis is placed on the coupled hydro-mechanical processes involved in hydraulic fracture propagation, thermal ...
Dual-Porosity and Dual-Permeability Poromechanics Solutions for Problems in Laboratory and Field Applications
(2010)
In this work, a study of anisotropic dual-porosity and dual-permeability poromechanics is presented through generalized analytical solutions for selected problems in laboratory and field applications. For example, the ...
History Matching of 3D Reservoir Models with Complex Non-Gaussian Distributions of the Model Parameters
(2010)
Although the first application of the ensemble Kalman filter (EnKF) as a technique for sequential assimilation of noisy measurements was to a numerical weather prediction problem, remarkable research progress has been made ...
Multiple-Porosity and Multiple-Permeability Poroelasticity
(2013)
Since the advent of basic ideas in the theory of fluid seepage in fissured porous media, much effort has been placed in engineering and science departments of various disciplines in trying to foster the concept of dual-porosity ...
STUDY OF FLUID DYNAMICS EFFECTS FOR LOSS OF WELL CONTROL INCIDENTS IN SUBSEA WELLS
(2019-05-10)
The safety of well operations has become the focal point of the research paradigm since the Deepwater Horizon incident. The risks of wellbore blowouts cannot be neglected in any drilling operation, which makes the discharge ...