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Keywords: gas reservoir
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Proceedings Papers

Paper presented at the SPE Canada Unconventional Resources Conference, September 28–October 2, 2020
Paper Number: SPE-199980-MS
...-Darcys. This paper proposes an alternative pulse-decay technique that offers accurate permeability measurements within a considerably short time frame. A radial-flow pulse decay method with a new experimental design is developed, which employs two gas reservoirs of the same volume and two pressure...
Proceedings Papers

Paper presented at the SPE Canada Unconventional Resources Conference, March 13–14, 2018
Paper Number: SPE-189808-MS
... with modifications in unconventional gas reservoirs. However, none of these models show great success when applied to inclined and horizontal wells in shale gas reservoirs. This is due to the fact that these models are developed for vertical wells and cannot identify the right multiphase flow regime in inclined...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, February 15–16, 2017
Paper Number: SPE-185063-MS
... numerical inversion. Pseudo-time (for gas reservoirs) is iterative and has demonstrated issues with accuracy, particularly in stress-sensitive reservoirs. In this work, we present a new, practical semi-analytical model which provides a direct time domain solution using the succession of steady-states method...
Proceedings Papers

Paper presented at the SPE/CSUR Unconventional Resources Conference, October 20–22, 2015
Paper Number: SPE-175923-MS
.... Material Balance Equation (MBE) is a simple but convincing tool in that it eliminates the assumptions lying in the flow equations. This paper seeks to use the MBE technique to analyze early-time two-phase flowback data in shale gas reservoirs. Diagnostic plots from field production data show an immediate...
Proceedings Papers

Paper presented at the SPE/CSUR Unconventional Resources Conference, October 20–22, 2015
Paper Number: SPE-175906-MS
... Abstract A model for gas transport in micro fractures of shale and tight gas reservoirs is established. Slip flow and Knudsen diffusion are coupled together to describe general gas transport mechanisms, which include continuous flow, slip flow, transitional flow and Knudsen diffusion...
Proceedings Papers

Paper presented at the SPE/CSUR Unconventional Resources Conference – Canada, September 30–October 2, 2014
Paper Number: SPE-171673-MS
... fractures and pre-existing natural fractures. Upstream Oil & Gas hydraulic fracturing diagnostic plot Horn River Basin Dehghanpour reservoir shale gas reservoir production data expansion free gas shale gas gas production flowback data volumetric analysis fracture society...
Proceedings Papers

Paper presented at the SPE/CSUR Unconventional Resources Conference – Canada, September 30–October 2, 2014
Paper Number: SPE-171637-MS
... Drillstem Testing Fluid Dynamics flow in porous media Upstream Oil & Gas pseudopressure complex reservoir compressibility rate-transient analysis pore confinement gas reservoir fracture half-length critical temperature shale gas reservoir hydraulic diffusivity Clarkson shale...
Proceedings Papers

Paper presented at the SPE/CSUR Unconventional Resources Conference – Canada, September 30–October 2, 2014
Paper Number: SPE-171641-MS
..., these models have not typically been applied to coal reservoirs. Abstract Unconventional gas reservoirs have complex storage and transport properties that are difficult to characterize and are dynamic. The large internal surface area of nano-scale organic pores gives them the capability to store...
Proceedings Papers

Paper presented at the SPE/CSUR Unconventional Resources Conference – Canada, September 30–October 2, 2014
Paper Number: SPE-171610-MS
... understand decline prediction in tight oil and shale gas reservoirs. The paper also discusses methods to estimate input parameters for forecasting, using factors such as permeabilities, fracture interference time, stimulated-rock volume (SRV), and fracture half-length from production history and completion...
Proceedings Papers

Paper presented at the SPE/CSUR Unconventional Resources Conference – Canada, September 30–October 2, 2014
Paper Number: SPE-171664-MS
... reservoir gas reservoir production history realization initial ensemble fracture half-length fracture system fracture model parameter algorithm characterization hydraulic fracture parameter ensemble fracture parameter Shale gas reservoirs with low permeability rock matrix often...
Proceedings Papers

Paper presented at the SPE/CSUR Unconventional Resources Conference – Canada, September 30–October 2, 2014
Paper Number: SPE-171633-MS
... of slabbed core, 22 core plugs and their accompanying cuttings), this study provides a roadmap to fully characterize the fluid storage and transport properties of fine-grained tight oil and liquid-rich gas reservoirs. We demonstrate that pore structure, large- and fine-scale (cm-size) permeability...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference Canada, November 5–7, 2013
Paper Number: SPE-167176-MS
... i c t i Abstract Horizontal wells and hydraulic fracturing are the key technologies that allow commercial production from tight oil and gas reservoirs. However, rigorous analysis of production data from these reservoirs requires incorporation of the impacts of stress-dependent...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference Canada, November 5–7, 2013
Paper Number: SPE-167185-MS
... in this direction is smaller than in the other directions, the use of the definition of the distance of investigation in calculating the investigated area becomes challenging (see Figure 1 ). Abstract Due to the recent advances in well design and production techniques, tight/shale gas reservoirs have...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference Canada, November 5–7, 2013
Paper Number: SPE-167195-MS
... and technology in a deep tight gas reservoir seen as non-commercial with vertical completions. An offsetting directional well provided net pay and permeability estimates based on production logs, well test, and RTA (rate time analysis). Design of this well focused on stimulation technology, specifically...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference Canada, November 5–7, 2013
Paper Number: SPE-167246-MS
... become standard development practices in unconventional gas reservoirs. In order to tap into the full potential of gas shale reservoirs and to produce them economically, it is essential to optimize not only the locations of hydraulic fracture (HF) stages along the given wellbore, but also the wellbore...
Proceedings Papers

Paper presented at the SPE Canadian Unconventional Resources Conference, October 30–November 1, 2012
Paper Number: SPE-162647-MS
... and second linear flow regimes. hydraulic fracturing drillstem testing square-root-time plot analysis drillstem/well testing artificial intelligence upstream oil & gas pressure transient analysis pressure transient testing gas reservoir production data negative intercept transitional...
Proceedings Papers

Paper presented at the SPE Canadian Unconventional Resources Conference, October 30–November 1, 2012
Paper Number: SPE-162783-MS
... In this paper we present a normal score transform EnKF (NS-EnKF) approach to match the production/flow observations of a tight fractured gas reservoir, while honoring the reference non-Gaussian statistics of the upscaled fracture model parameters derived from static information. In our...
Proceedings Papers

Paper presented at the SPE Canadian Unconventional Resources Conference, October 30–November 1, 2012
Paper Number: SPE-162526-MS
... flow regime exhibited in shale gas reservoirs. The analytical methods used to analyze this flow-regime include the linear flow superposition plot (abbreviated as "linear flow plot" in this work) and the square-root of time plot. The linear flow plot is a plot of Δ m(p)/q g versus superposition...
Proceedings Papers

Paper presented at the SPE Canadian Unconventional Resources Conference, October 30–November 1, 2012
Paper Number: SPE-162774-MS
... a reasonable theory that explains how gas-reservoirs in BCGA systems were created. Law indicates that these gas systems require gas-prone source rocks and low-permeability reservoirs in proximity to each other. As both, source and low permeability rocks, suffer further burial and exposure to increasing...
Proceedings Papers

Paper presented at the SPE Canadian Unconventional Resources Conference, October 30–November 1, 2012
Paper Number: SPE-162717-MS
..., there is water blockage up-structure from tight gas reservoirs. The physical impossibility of this kind of trap holding for millions of years has been questioned sometimes in the past. However, it does occur as shown conclusively by Ramirez and Aguilera (2012) with the use of reservoir simulation. Figure 5...

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