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Keywords: linear flow
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Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5265-MS
... properties and completion design but with different cluster and stage spacing were analyzed to validate the observed signatures. The conceptual numerical model results show that the wells at wider cluster spacing (and longer stage length) exhibit longer linear flow duration, which does not necessarily...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2666-MS
... for unconventional reservoirs. It uses a simulation model of the reservoir and has been applied to transient linear flow, the predominant flow regime of unconventional wells. The transient linear flow IPR resulted in curves with shapes that are very different from the conventional IPRs. These unexpected shapes were...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2677-MS
... testing reservoir characterization hydraulic fracturing wellbore design dominant fracture coefficient leak-off coefficient surface area fracture geometry linear flow pressure-based fracture map fracture area total surface area fracture artificial intelligence complex reservoir upstream oil...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2861-MS
... to be done in two steps and in conjunction with flow regime identification, otherwise it may result in overestimation of the stimulated reservoir volume. For multiple case studies in different shale plays across North America, we show that the end of linear flow period through areas with enhanced...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2790-MS
... undersaturated condition superposition time linear flow esp power equation degradation flowrate measurement equation repeatability flow regime downhole flowrate power equation correlation boundary downhole rate flowrate Abstract Maximizing well construction return on investment is essential...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-293-MS
... is an extension of the work presented in URTeC paper #2856750, 2018, where a decline curve reproducing the standard transition from linear flow to pseudo steady state flow regimes was proposed for fractured horizontal wells in unconventional reservoirs. In this new work, the formulation was generalized...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-377-MS
... root of time for the total hydrocarbon rate and the equivalent plot for the water. If the wells were producing in a linear flow regime, the resultant slope of the straight line would provide the well potential index, which is a function of the product of the fracture half-length and the square root...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 23–25, 2018
Paper Number: URTEC-2902794-MS
.... On close examination, it was found that both the linear flow regimes and changes in fracture conductivity with time follow a power-law function. Thus, the reason for successful application of Arps Hyperbolic, Power-Law Exponential (PLE), Stretched-Exponential Decline (SEPD) and Duong methods rest...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 23–25, 2018
Paper Number: URTEC-2903036-MS
... Arps hyperbolic model is re-cast in terms of the colloquially named "linear flow parameter", relating the initial rate and initial decline parameters with a functional relationship. Computation of initial rate can be performed from a diagnostic fit of a ½-slope trend line that corresponds to transient...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 23–25, 2018
Paper Number: URTEC-2902799-MS
... is used to first identify the flow regimes during the production phase. Using previously-derived RTA algorithms, permeability is then estimated using the slope of the square-root of time plot (if transient linear flow is observed) and distance of investigation calculation (if the end of linear flow...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 23–25, 2018
Paper Number: URTEC-2856750-MS
... production monitoring base curve Reservoir Surveillance relation production control Upstream Oil & Gas physical srv-bounded model srv-bounded model physical parameter black circle decline parameter linear flow transition decline curve flow regime real time system production...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 23–25, 2018
Paper Number: URTEC-2892966-MS
..., and requires further study. data quality Reservoir Surveillance production control production forecasting Upstream Oil & Gas transition production monitoring b-parameter value boundary-dominated flow linear flow unconventional reservoir permeability hydraulic fracturing compound linear...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 23–25, 2018
Paper Number: URTEC-2901909-MS
..., these completion treatments are apt to be complex in terms of fracture lengths and distances between fractures creating a composite flow regime characterized by a continuous change in the proportional contribution from the reservoir experiencing of infinite acting linear flow and boundary dominated flow. A unified...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 23–25, 2018
Paper Number: URTEC-2901712-MS
... Abstract The idea of radius of investigation has been used in conventional pressure transient analysis for various applications such as calculation of distance to a flow barrier. In multistage fractured horizontal wells reservoirs, linear flow predominates for most of the production period...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 23–25, 2018
Paper Number: URTEC-2901799-MS
... ignore reservoir heterogeneities, and assume static reservoir properties. In this work, transient linear flow is rigorously modeled in unconventional reservoirs with pressure-dependent rock and fluid properties and both continuous and discontinuous (heterogeneous) porosity and permeability...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 24–26, 2017
Paper Number: URTEC-2670925-MS
... with flow regime changes identified on RTA diagnostic plots. GOR is constant at a level higher than original solution gas-oil ratio during transient linear flow, and during most of the transition period that follows. A log-log unit-slope line forms only when pressure throughout the entire reservoir drops...

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