Geomechanical Characterization of Hydraulic Fracture in Tight Carbonates Due to Depletion

Hamid, Osman; Rahim, Zillur; Harbi, Abdulaziz; Mohiuddin, Mohammad; Ba-Wazir, Omar

doi:10.2118/172797-ms

Cited by 5 publications

(4 citation statements)

References 5 publications

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“…Strength properties will determine whether rock will fail at a given stress or not (Herwanger and Koutsabeloulis 2011). The calculation of the magnitude of the mechanical properties is therefore a key step in building geomechanical models (Hamid 2015).…”

Section: Mechanical Properties Determination (Dynamic and Static)mentioning

confidence: 99%

“…The underburden thickness was chosen such that the resulting model is roughly cubical in shape. A single-material simulation was performed prior commencing the 3D geomechanics modeling process, where default properties are assigned to all cells in the complete model, to check grid functionality and that the linear stress gradients are calculated when properties do not vary (Hamid., 2015).…”

Section: Embeddingmentioning

confidence: 99%

“…The assigned pore pressure gradient helps to support the weight of the overburden as depth increases. The result of this first model run is a stress state for the whole grid that reflects density and topography variations (Hamid, 2015).…”

Section: Stress Calculationmentioning

confidence: 99%

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Effect of Pore Pressure Depletion on Wellbore Stability and Hydraulic Fracturing in Sandstone Reservoir

Al-Dossary

Hamid

Elkatatny

2019

Day 2 Wed, March 27, 2019

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Development of stress sensitive reservoirs, especially in challenging environment, is raising awareness that geomechanics is a vital aspect of reservoir management. Understanding reservoir geomechanical behavior becomes more and more important for petroleum industry. A significant changes in formation pressure caused by depletion will induce deformation and stress/strain changes in the reservoir and the surrounding formation, understanding in-situ stresses and how stress changes in and around the reservoir due to depletion is important in a multidisciplinary approach to reservoir characterization and management. These changes in stresses/strain affect the reservoir as well as the overburden and underburden formation, which directly affect drilling and stimulation operations strategies. Reservoir compaction, shear casing and well damage, cap-rock integrity, fault reactivation and sand production can occur during reservoir depletion. To address these issues, 3D geomechanical models have been developed (which describe the state of stresses in the reservoir and overburden). 4D geomechanics models (dynamic models, that describe the changes in stress over time with production are required. Reservoir Geomechanics approaches, this paper address and answer the following questions: How Geomechanics changes in stresses and strain impact wellbore stability related issues and stimulation operations? Stress rotation around faulted zones. How depletion effect hydraulic fracture growth?

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Section: Mechanical Properties Determination (Dynamic and Static)mentioning

confidence: 99%

Section: Embeddingmentioning

confidence: 99%

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Effect of Pore Pressure Depletion on Wellbore Stability and Hydraulic Fracturing in Sandstone Reservoir

Al-Dossary

Hamid

Elkatatny

2019

Day 2 Wed, March 27, 2019

Self Cite

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Section: Mechanical Properties Determination (Dynamic and Static)mentioning

confidence: 99%

Effect of Pore Pressure Depletion on Wellbore Stability and Hydraulic Fracturing in Sandstone Reservoir

Al-Dossary¹,

Osman²,

Elkatatny³

2019

International Petroleum Technology Conference

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Stress Dependent Permeability of Carbonate Rock

Hamid

Osman

Rahim

et al. 2016

Day 1 Mon, September 26, 2016

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Permeability is one of the most important parameters in formation evaluation, reservoir characterization, and hydrocarbon production. There are many methods in the industry to model in-situ permeability, but it is also critical to know that permeability decreases with the increase of effective stress as has been reported in many case studies i.e. permeability is sensitive to changes in stress and pore pressure. In this study, a relationship between permeability, porosity, velocity and effective horizontal stress is developed for carbonate reservoirs using both core and field data. In-situ horizontal stress is related to permeability for several reservoirs around the globe. This paper addresses fundamental controls on stress dependent permeability, as identified through analysis of core samples. The model developed provides a description of effective stress and explains the dynamic impact of geomechanical stresses on key production parameters in an effective way. This will lead to a more robust simulation model and history match for the life of the reservoir. Core plug samples from carbonate formation were tested for conventional measurement (porosity, permeably, and grain density), while acoustic slowness is obtained by wireline and/or LWD measurement to create empirical correlations between permeability, porosity, velocity and effective stress. The correlations show a good agreement with available data that are commonly used in the industry for carbonate. The developed workflow is presented to improve evaluation and enhance the productivity and management of stress-dependent reservoir, also predict sweet spots, optimize completion and predict production that will help in the development of both conventional and unconventional reservoirs.

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Geomechanical Characterization of Hydraulic Fracture in Tight Carbonates Due to Depletion

Cited by 5 publications

References 5 publications

Effect of Pore Pressure Depletion on Wellbore Stability and Hydraulic Fracturing in Sandstone Reservoir

Effect of Pore Pressure Depletion on Wellbore Stability and Hydraulic Fracturing in Sandstone Reservoir

Effect of Pore Pressure Depletion on Wellbore Stability and Hydraulic Fracturing in Sandstone Reservoir

Stress Dependent Permeability of Carbonate Rock

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