...Chris Carpenter _ This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper URTeC 4042140, “Regional Pore-Pressure Variations of the Wolfcamp, Dean, Spraberry, and Bone Spring Formations of the Midland and Delaware Basins in the USA,” by Shuvajit Bhattacharya, Ray...

... simulation slip tolerance horizontal well workflow help predict casing deformation shale ga hydraulic fracture pore pressure TECHNICAL PAPERS | Hydraulic Fracturing Modeling Workflow Helps Predict Casing Deformation During Hydraulic Fracturing in Shale Gas In this study, a numerical simulation...

... managed pressure drilling hydraulic model pore pressure upstream oil & gas bhp drilling parameter fracture pressure technical paper drilling automation surface pressure annular pressure drilling stop circulation hydraulics-modeling platform automate managed-pressure drilling control system...

... to drill a new exploratory well. MPD and the MPD well-design process were employed to increase the likelihood of drilling the well to total depth (TD) safely and successfully by providing the capability to accomplish the following: Account for pore pressure/fracture gradient (PPFG) uncertainty and navigate...

... data to compute geomechanical logs, pore pressure, stresses, porosity, and natural fractures. Transforming Drilling Data Into Log Properties. The surface drilling data commonly available on any rig includes weight on bit, rate of penetration, rotational speed, and torque. Transforming this data...

... plastic materials, elastoplastic deformation will seldom be enough to close the annulus. Reservoir Characterization Upstream Oil & Gas dilation angle complete paper wellbore integrity pore pressure shale barrier liquefaction self-healing reservoir geomechanics consolidation form well...

... in the syn-rift and pre-rift sedimentary section with lower ramp. A higher pore pressure of approximately 17.3 lbm/gal at a shallower-than-predicted depth was encountered when drilling the 12¼-×14½-in. under-reamed (UR) section of Bien Dong Well WHP-HT1. Increasing mud weight (MW) was not practical because...

... gradient de- pends on the assumed level of com- pression and the associated flowing bottomhole pressure. The gradient is Fig. 2 Collapse design load with two alternatives for packer setting depth. 13 -in. casing 13 -in. casing 10-in. packer 10-in. liner 10-in. liner 10-in. packer Pore pressure in open hole...

...- ventional HP/HT problems observed in the offset wells. Synergies Between MPD and HP/HT The initial driver for MPD is typically a need to navigate narrow-margin sec- tions, characterized by a small window between pore pressure and fracture gra- dient. This makes it a natural candidate for HP/HT wells, where...

... by permission. Pore-pressure prediction plays an important role in well planning as exploration targets shift to deeper, overpressured reservoirs. Pressure-related problems in such zones are mainly associated with narrow operating windows, resulting in severe well-control incidents, sometimes even leading...

... be needed when the 8½-in.-hole section was drilled. Given the uncertainty in the pore-pressure and fracture-gradient forecast, drilling the 8½-in.-hole section with statically underbalanced MW using MPD was seen as the most efficient means of well construction. 2014. Society of Petroleum Engineers 1...

...Chris Carpenter This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 167915, “Seismic-Frequency- vs. Seismic-Interval-Velocity-Based Pore- Pressure-Prediction Methodologies for a Near-Salt Field in Mississippi Canyon, Gulf of Mexico: Accuracy Analysis...

... was made because of the very low kick-and-loss margin and potential for ballooning and kick events, given the very high pore pressure. The frequency of well-control incidents can be higher in HP/HT wells; MPD enables easier control of kicks with the automated choke manifold. A semisubmersible tender assist...

... not explain fault weakening caused by water injection, either. Upstream Oil & Gas pore pressure Earthquake enhanced recovery displacement mechanism Reservoir Characterization tremor Simulation shear stress capillary pressure waterflooding depletion variation induce injection Epicenter...

... 2014 2014. International Petroleum Technology Conference oilfield chemistry casing and cementing Workplace Hazard casing design Production Chemistry Upstream Oil & Gas deep-well sour environment H2S management pore pressure Corrosion Inhibition annular pressure drilling...

... with the permission of the author. Contact the author for permission to use material from this document. well control subsea BOP predrill model riser gas influx annular pressure drilling Deepwater Well Control MPD system wellbore pressure safety managed pressure drilling pore pressure riser mpd...

... Engineers 1 7 2013 1 7 2013 1 7 2013 1 7 2013 Upstream Oil & Gas completion Reservoir Characterization pore pressure effective stress orientation unconventional reservoir require advancement proppant fracture hydraulic fracturing stimulation fracability fracture...

... of the reservoir and its surroundings. Also, the rock mechanical properties may be altered by exposure to CO 2 or by pressure and stress changes. Further, rock mechanical properties, pore pressure, in-situ stresses, and the stress evolution under injection conditions control reactivation of a fault and, therefore...

..., a highly complex hydraulic system, the subsea BOP, must be operated remotely in a very hostile environment. Deepwater depositional environment: This leads in most cases to a very tight margin between formation strength and pore pressure. Existing emergency procedures: In the case of a loss of position...

... limit for the MPD fingerprint tests, and to serve as calibration points for the pore-pressure model. The objective in this 8½×9½-in. section was to maintain overbalance in the narrow window between pore pressure and fracture gradient. These tight drilling margins required use of an automated MPD system...