... Protection Agency (EPA) to ensure the safety of underground drinking water sources (USDW). Besides, a complex faulting system identified on the west side of the basin was modeled to preclude risks of CO 2 migration. The faulting system at the northwestern SJB was identified through well log stratigraphy...

... & gas modeling & simulation leakage aquifer migration leakage wellbore permeability wattenberg field carbon storage multi-segmented wellbore wellbore climate change dj basin colorado injection pathway wellbore scenario wellbore integrity impact Introduction Safe and secure...

..., hydrate formation, phase transition as well as mitigation strategies and contingencies were evaluated. The model showed that with both SOBM and WBM, the CO2 influx entered the well in its supercritical form. Under static conditions, the CO2 remained in its supercritical form and showed no migration...

... A further analysis of the GRD signals provided additional insights, such as bubble breakup and coalescence, and estimates of the change in bubble length and count. The number of bubbles migrating in the upward direction were determined by counting the number of peaks at each GRD location. More...

... international information project eco 2 migration characterization north america government kemper county storage complex injection integrity reservoir Background The CarbonSAFE Program In 2016, the United States Department of Energy - National Energy Technology Laboratory (USDOE-NETL...

... and rate of fluid migration causing the observed FDI. hydraulic fracturing orientation monitor well conductivity fracture drilling operation fdi pressure migration horizontal well unconventional reservoir magnitude directional drilling passive fracture frac stage frac connection...

... in Wolfcamp suggesting the migration of oil and gas from deeper (∼11,000 ft.) to shallower levels (4,000-6,000 ft.) in the same formation. Oil accumulation in Bone Spring is concentrated at the depths of 11,000-7,000 ft. with some intervals being more productive mimicking the alternating position of shaley...

... performed involving the injection of nitrogen kicks through a chemical injection line and also by bullheading down 2-7/8 inch tubing in both stagnant and circulating water. Variations in flow rate, kick size, and backpressure are investigated including gas migration during shut-in. DTS and DAS data...

... Abstract Computation of seismic-wave traveltimes is used in seismic imaging procedures such as Kirchhoff migration. For realistic applications, one has to precompute large traveltime tables (for all sources, receivers, and imaging points). This implies massive computations as well as storage...

... Lam Member block 18 structural geology calibration migration Reservoir Characterization lam interval saturation accumulation source rock madbi formation gas window source layer 2 Yemen maturity oil window transformation petrophysical analysis hydrocarbon Introduction...

... for a better understanding of the reservoir such as: isotope geochemistry to gain insights into hydrocarbon migration; Special Core Analysis (SCAL) data to gain insights into fluid mobility; vapour-liquid equilibrium data to examine hydrocarbon fractionation during production; and completions data to provide...

... Abstract Many deep water wells experience steep productivity declines. Some field observations indicate that this decline is partly attributed to fines migration effects. This paper presents a numerical workflow to simulate the effect of flow induced fines migration on production decline over...

... to understand what pressure response could be expected and whether a leak into those formations could be detected. It was concluded that material leaks at the injection well would be differentiable from baseline pressure drift at the monitoring wells. subsurface storage Brine migration deep monitoring...

... Abstract Fines migration is a commonly observed phenomenon in oil and gas wells, but often difficult to duplicate in the laboratory. A suite of labs tests was conducted to gauge the effect that different test conditions have on fines migration and to improve fines migration prediction through...

... and Lake 1997 ), vertical CO 2 plume migration ( Silin et al. 2009 , Hayek et al. 2009 , Riaz and Tchelepi 2008 ), saturation overshoot during water infiltration into soil ( DiCarlo et al. 2012 ), and the effectiveness of nanoparticles in mitigating fines migration ( Yuan et al. 2016...

... of the differences in the way fluids in horizontal wells interact under the influence of gravity (when compared with vertical wells). Even in this day and age, operators and company men sometimes inadvertently play a "dance" of gas intrusion and migration vs. mud-weight increase, a game of horizontals orchestrated...

... structural uncertainties. These relatively small scale (< 1 – 2 km) overburden anomalies cannot be resolved with conventional depth imaging usually, based on migration velocity analysis and residual move out (RMO) minimization only. This paper proposes the application of dip-constrained tomography...

... of water and hydrocarbon zones as well as age. The assessment confirms that natural gas migration occurs infrequently, but can happen from poorly constructed wellbores. There has been no occurrence of hydraulic fracturing fluid contamination, which was confirmed by our analysis. The significance...

... Abstract Most producing formations contain clay minerals that can impair permeability due to clay migration and swelling because of their sensitivity to aqueous fluids. Unfortunately, conventional clay stabilizers are inadequate because of their inability in reaching smaller pores, difficulty...

... on natural gas development in the Rocky Mountain region of the United States. The objective of this specific study is the assessment of the use of existing water wells to monitor the risk of the contamination by the migration of fracturing fluids or hydrocarbons to fresh water aquifers. An additional...