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Showing 1 to 16 of 16 for “"Well control"”.
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Numerical Evaluation of Various Well Control Methods with Emphasis on Application in Managed Pressure Drilling Operation
… accurately manage the annular pressures of the wellbore with a combination of surface back pressure (SBP), flow rate and drilling mud density. MPD is designed to identify and circulate out kicks (uncontrolled flow of formation fluids into the wellbore) that possess blowout risk. Since MPD allows …
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Strategies for real time reservoir management
… to both to find appropriate frequencies for well control adjustment. Second, two gathered EnKF methods are proposed to save computational cost and reduce sampling error: gathered EnKF with a fixed gather size and adaptively gathered EnKF. Finally, oil price uncertainty is forecasted and …
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Analysis of diagnostic testing of sustained casing pressure in wells
Over 8,000 wells in the Gulf of Mexico exhibit sustained casing pressure (SCP). SCP is defined as “any measurable casing pressure that rebuilds after being bled down, attributable to cause(s) other than artificially applied pressures or temperature fluctuations in the well”. The Minerals Management …
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Stochastic modelling for the analysis of blowout risk in exploration drilling.
… of probabilities related to kick, loss of well control, and blowout volumes; model input related to company and well specific parameters; and pro-active decision making in the development of drilling programmes to enable the identification and selection of risk-reducing measures as well as …
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A system-theoretic approach to oil and gas assurance programs
… digital innovation and acceleration. Oil and gas well construction, in particular, will continue to incorporate automation to enhance capabilities and gain a competitive advantage. These changes to the technology landscape will fundamentally alter the nature of well construction and the …
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Analysis of Paleokarst Sinkholes in the Arkoma Basin using 3-D Seismic
… multiple 3-D seismic surveys and subsurface well control to map paleokarsts within the Viola Limestone in the Arkoma Basin. Calculated seismic attribute volumes used to identify paleokarst sinkholes within the Viola Group include coherency and curvature attributes. ImageJ software was used to …
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Fracture Modeling and Flow Behavior in Shale Gas Reservoirs Using Discrete Fracture Networks
Fluid flow process in fractured reservoirs is controlled primarily by the connectivity of fractures. The presence of fractures in these reservoirs significantly affects the mechanism of fluid flow. They have led to problems in the reservoir which results in early water breakthroughs, reduced …
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Identifying source rocks and reservoir elements of South China Sea grabens using 3D seismic data, West Natuna Basin, Indonesia
… 1997b). In the West Natuna Basin, Indonesia, wells infrequently penetrate most of the synrift section, and as a result source and reservoir potential of the lower synrift is under-evaluated. This study was designed to evaluate the source and reservoir potential of half grabens in the Gabus and …
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Velocity Studies in the Deepwater Gulf of Mexico: Keathley Canyon and Walker Ridge Areas
… Gulf of Mexico. The first is a compilation of wellbore-salt-body interval velocities (Vint) from 55 wells exhibiting interval compressional-wave velocity variation from 13,966 ft/s to 18,535 ft/s with mean velocity of 14,920 ft/s and a standard deviation of 726 ft/s. The velocities vary …
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Headache does not predict sideline neurostatus or balance in high school football players
… were re-administered the same test battery, as well control participants (non-headache: n=16) matched for age, playing position, weight and height. Main Outcome Measures: Performance on the GSC, BESS and SAC were evaluated using group by time repeated measures analysis of variance. Significance …
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Headache does not predict sideline neurostatus or balance in high school football players
… were re-administered the same test battery, as well control participants (non-headache: n=16) matched for age, playing position, weight and height. Main Outcome Measures: Performance on the GSC, BESS and SAC were evaluated using group by time repeated measures analysis of variance. Significance …
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Direct numerical simulation of viscoplastic particulate flows
… string has been placed in the newly drilled wellbore, and is critical to prevent loss of well control or contamination of water sources. While a conceptually simple operation, real-world cementing operations are complicated by a slew of operation specific issues such as high wellbore …
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Seismic Expressions of Paleokarst
… zones by seismic evaluation calibrated by well control with full-wave sonic log data. Chat and tripolite show clear separation on total acoustic impedance from Miss Lime, but no separation with VP /VS, and both exhibit total porosities greater than 20 % with an indication of fracture …
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Identification of the physical controls on the deposition of Aptian and Albian deep water sands in the Bredasdorp Basin, South Africa
In the petroleum industry, the location of a new well is selected based on several factors, one of which is the presence of reservoir-quality sands. To determine the lateral extent of these sands away from well control, the depositional environment and character of the deposit must be adequately …
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Experimental and Analytical Investigation of Particle Dynamics in Newtonian and non-Newtonian Fluids in a Taylor-Couette Cell
… to operational issues such as lost circulation, well control problems, and even blowouts. To simulate DF dynamics under operational conditions, this study utilizes a Taylor-Couette (TC) cell, which consists of a rotating inner cylinder and a stationary outer cylinder separated by a 9.0 mm annular …
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Functional gel for directed molecular transport and sensor applications
… analyte collection capability and the spatial control of such gradient. Electrohydrodynamic printing, an ink-jet printing method that can minimize the ink droplet volume, was introduced to construct a micrometer scale radial chemical gradient in a polyacrylamide hydrogel. Collaborating with …