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Keywords: pore pressure
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Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2558-MS
... outcrop observations for considering a dynamic pore pressure throughout the rock. Pressurized rotary sidewall cores were collected on a Marcellus well drilled under slightly overbalanced conditions to minimize the escape of gas. After measuring total gas evacuated from the cores, total uptake experiments...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2834-MS
... injection steam-assisted gravity drainage upstream oil & gas pore pressure miscibility hydrocarbon gas oil recovery permeability injection gas reservoir fluid huff-n-puff cycle URTeC: 2834 Selection of Hydrocarbon Gas for Huff-n-Puff IOR in Shale Oil Reservoirs Williams Ozowe*1, Shuang...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-3222-MS
... Abstract Accurate formation pressure (pore pressure) prediction is essential for executing a safe and cost-effective drilling program. Unexpected overpressure is a major cause of drilling hazards, costing the industry billions of dollars, and posing a huge potential risk for damage to the...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2895-MS
... Abstract Pore pressure depletion, in response to production, impacts the economics of child wells by reducing contact with virgin reservoir. In some cases, depletion increases the likelihood of sustaining damaging frac hits in the parent well by creating a pressure sink that directs fracture...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-3173-MS
... drillstem testing fracturing fluid fracture length proppant upstream oil & gas pore pressure wellbore design fluid dynamics complex reservoir drillstem/well testing information fracture simulator stimulation hydrocarbon mseel database closure stress technology conference carr 2020...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2631-MS
... overlay pressure, the permeability of fracture-matrix decreases with the drop of pore pressure gradually, and the permeability free-falls demotion after reaching a closure pressure. The nonlinear flow region is widen in the closed status. During elevating the pore pressure, we tested the cracking pressure...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-1051-MS
... concentration authigenic phase basin jones & jenkyn hydraulic fracturing precipitation carbonate cement authigenic carbonate carbonate burial reservoir geomechanics structural geology pore pressure cement haynesville beef reservoir characterization complex reservoir deposition...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2560-MS
.... complex reservoir pore pressure relative permeability reservoir characterization upstream oil & gas water saturation imbibition relative permeability hysteresis reservoir simulation drainage imbibition zone flow in porous media production rate hysteresis water imbibition subsequent...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-52-MS
... Abstract Although pore pressure is difficult to measure in low permeability rocks such as shale, it nevertheless has an enormous impact on drilling, hydrocarbon production and geomechanics applications such as hydraulic fracturing and wellbore stability analysis. Pore pressure is, thus, a key...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-250-MS
... diameter and fractal dimension of pore size distribution are dynamically changing as a result of the variation of effective stress. Besides, based on fractal approach, a new Klinkenberg coefficient that dynamically changes with pore pressure is employed to incorporate the non-Darcy effect. This dynamic...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-106-MS
... methane and helium permeability curves as a function of pore pressure to isolate the portion of permeability evolution controlled by sorption. We independently build strain curves to solve for the sorptive strain and find good agreement between these two methods. This work demonstrates that matrix...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-266-MS
... less-developed macro-fractures. For shale samples with the effective flow radius of pores is smaller than 5μm (initial pore pressure=1.0MPa), the apparent permeability theory can be used to explain the permeability. The permeability ratio is bounded by an upper envelope which is corresponding to the...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-1002-MS
... Abstract A workflow is presented which places far greater emphasis on formation lithology than is usually employed during pore pressure and geomechanical studies. Advanced classification techniques are linked with conventional pore pressure prediction and geomechanical modelling methods to...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-1064-MS
... distributions much like BET experiment, and it could also provide information about the original pore pressure or gas in place. The rock-fluid nanofluidics interactions during fracking could also be studied through CHSIA and the results could help the optimization of fracking designs. Introduction...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-111-MS
... Abstract Pore pressure prediction plays a critical role in the ability to predict areas of high overpressure and fracture behavior for the exploitation of unconventional plays, which are both correlated with production. Shales in these plays have variable clay content and complex multi...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-123-MS
... media drillstem/well testing Modeling & Simulation Upstream Oil & Gas Artificial Intelligence Drillstem Testing near-wellbore pressure drop dp dg coefficient leakoff stiffness McClure permeability estimate DFIT fracture pore pressure contact pressure interpretation injection...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-30-MS
... are the rock mechanic deformations that reduce the permeability with increasing effective stress and Knudsen diffusion/slippage flow that enhances the permeability at low pore pressures. Therefore, it is important to measure the pore-pressure-dependent permeability to better characterize the fluid...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-257-MS
... machine learning Artificial Intelligence seismic data cluster 0 complex reservoir Bowland Shale brittleness index placement shale gas pore pressure horizontal stress fracture propagation lateral well geomechanical property well logging Upstream Oil & Gas british geological survey...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-314-MS
... Abstract Diagnostic Fracture Injection Tests (DFIT) help to estimate various formation and fracture parameters such as closure stress, reservoir permeability, pore pressure, fracture compliance/stiffness and conductivity of un-propped fractures. All of the above require a precise depiction of...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-435-MS
... permeability compared to the compression of fractures created at lower effective pressures. Results include the analysis of transient fracture permeability following renewed shear displacement and direct evidence of hydroshearing from fracture reactivation caused by increases in fracture pore pressure...

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