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Keywords: shale
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Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2023
Paper Number: OTC-32309-MS
... and shear) and bulk density of the porous frame are estimated. Shale anisotropy, which has effect on wellbore stability analysis especially in highly deviated and shale-rich wells is corrected for in the process. The in-situ static relationship for dynamic-to-static elastic moduli transform is provided...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2023
Paper Number: OTC-32393-MS
... horizons. The critical step is to extract from the 3D pressure model the pressure along each mapped horizon and plot the pressure with depth for each. For a shale horizon, the result reflects a linear shale gradient (e.g. ~0.83 psi/ft) consistent with restricted lateral pressure communication. Conversely...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30711-MS
... location can point to the possible pressure transgressive intervals that can cause a sudden pressure surge (PS). Moreover, modifying the drilling tolerance window (DTW) to accommodate the expected hydrocarbon column in the prospective reservoirs reduces the potential of unexpected hard kicks at the shale...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29311-MS
... waterflooding channel sand reservoir fracture length enhanced recovery modeling & simulation stress contrast hydraulic fracturing height growth drillstem/well testing fracture propagation shale bhp reservoir injection rate upstream oil & gas fracture growth reservoir pressurization...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29517-MS
... trends such as velocity, density, resistivity follows a compaction trend in this zone. As result of depositing shale seal in zone C, due to high stand sea level, fluid is prevented from permeating upward. This low permeable top seal is referred to as top of geopressure (TOG). The geopressured section...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27685-MS
... with potential greater uncertainty. The present study uses well data and post-stack seismic amplitudes to estimate volumes of porosity and saturation for gas and oil sands. An advantage associated with the data set used here is that P-impedance discriminates sands and shale. Gas and oil sands, however, overlap...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27817-MS
... and therefore overlooked. The resistivity suppression is caused by a lack of conventional tool resolution and the presence of conductive shale lamina. This paper will describe advanced techniques for effective evaluation of the low-resistivity laminated shaly sand sequences. To accurately identify and quantify...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-27108-MS
... effects. The resulting inversion outputs, acoustic and shear impedance, were used to derive shale and sand probability volumes. Well based analysis was used to determine the best relationship between acoustic and shear impedance and Young's Modulus for both sand and shale facies. Using the facies...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-26902-MS
...OTC-26902-MS Functionalized Nanosilicas as Shale Inhibitors in Water-Based Drilling Fluids Peter J. Boul, B. R. Reddy, Matt Hillfiger, T. Pete O Connell, and Carl Thaemlitz, ARAMCO Copyright 2016, Offshore Technology Conference This paper was prepared for presentation at the Offshore Technology...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-25953-MS
... correlation well logging real time system shale drilling parameter annular pressure drilling estimation eaton pore pressure artificial intelligence pore pressure estimation method offshore technology conference reservoir geomechanics pore pressure gradient upstream oil & gas...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25150-MS
..., typically found in laterally extensive reservoirs. The lateral drainage of pressure in reservoir sand units leads to a pressure gradient from higher pressured non-reservoir sediments (shales) above and below into the reservoir, leading to a focus of fluids, including hydrocarbons, within the reservoir...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25240-MS
... coefficient maracaibo basin offshore technology conference reservoir characterization venezuela pore pressure horizontal stress sandstone reservoir geomechanics stratigraphic column mechanical property drilling eocene inclination minimum horizontal stress basin shale tectonic...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2013
Paper Number: OTC-24030-MS
... Abstract Eaton's method, the standard method of determining pore pressure from seismic velocities, has been adapted from logging techniques. It requires the use of a normal (i.e. hydrostatic) compaction trend specific to very-low-silt shales, and also that the analysis only be performed upon...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2013
Paper Number: OTC-24221-MS
.... Maximum horizontal stress was inferred from observed breakouts. Pore pressure and stresses were combined with formation properties from well logs and laboratory rock mechanics tests to provide input for elasto-plastic (shales) and poro-elastic (sands) borehole stability models. These techniques...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2013
Paper Number: OTC-23954-MS
... Abstract Currently, the industry relies on shale velocity and electrical resistivity trends to model compaction and pore pressure. These methods do not properly identify the interrelated shale compaction properties, important to geoscientists, as well as drillers, of porosity, pore pressure...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2011
Paper Number: OTC-21995-MS
... extensive and vertically thick marine shales overly these potential reservoir intervals and provide an appropriate seal across the region. This petrophysical analysis was integrated with interpretations from available two dimensional seismic lines to investigate the spatial potential of the targeted...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2010
Paper Number: OTC-20599-MS
... straight from the casing shoe at the heel of the horizontal to the planned toe of the well with no active geosteering intended. This was based on the results from the vertical exploration and appraisal wells showing massive sands with limited interbedded shale. The drilling assembly was planned as a push...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2009
Paper Number: OTC-20220-MS
... manage hazards, one of which is what can be referred to as listening to the well (Weatherford 2008). Listening to the well is simply recognizing, integrating, and correctly interpreting all drilling dynamics, WOB, RPM, ECD, and shale shaker cuttings, to assist in making the correct decision while...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2009
Paper Number: OTC-20272-MS
... Abstract The development of domestic oil shale resources has regained significant attention in the past few years. Several factors have contributed to this, including high oil prices, emerging recovery technologies, increasing world demand for liquid hydrocarbons, and the continued decline...

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