... value [original fluid in place (OFIP)] during BDF. Although CFIP calculations do not assume a flow geometry, the SLA method requires this to extract reservoir/fracture information. Herein, transient linear flow (TLF) is assumed and used for the SLA‐method derivation, which allows the linear‐flow...

... horizontal wells (MHFHWs) completed in unconventional gas reservoirs. The methods reviewed in this study do not address complex transport mechanisms and complex fracture networks, but do address transient matrix linear flow (Ibrahim and Wattenbarger 2006 ; Nobakht and Clarkson 2012a , 2012b ; Chen...

... the assumption of a homogeneous reservoir. In this paper, we present practical solutions that include reservoir heterogeneity in rate‐transient analysis of multifractured wells. The solutions are developed for transient linear flow, which is a dominant‐flow regime in many tight/shale reservoirs. In addition...

... declines to less than the bubblepoint. Stage 3: The transient GOR “plateau”, which is characteristic of transient linear flow. Stage 4: A continuous rise in GOR during boundary-dominated flow. Fundamental differences between linear and radial flow, which cause the dependence of GOR on flowing bottomhole...

... drawdown constant-pressure production production rate SPE Reservoir Evaluation permeability modulus analytical solution pressure-dependent permeability base case permeability flow rate investigation linear flow average pressure equation reservoir reservoir pressure In some formations...

... simulations. 27 8 2015 30 3 2016 21 3 2016 29 6 2016 15 2 2017 Copyright 2017, Society of Petroleum Engineers Reservoir Surveillance production monitoring PVT measurement Upstream Oil & Gas production control Drillstem Testing transient linear flow GOR two...

... sandstone SPE Reservoir Evaluation porosity Monteith Formation Canada Alberta Monteith MCF structural geology facies monthly gas linear flow deposit University square root rock type month 0 permeability The analysis of unconventional, low-permeability siliciclastic reservoirs...

.... The method was tested, for linear-flow geometry, against analytical solutions for liquids and numerical simulations for gas reservoirs, exhibiting both transient and boundary-dominated flow. Excellent agreement was obtained, thus corroborating the validity of the method developed in this study. Two practical...

.../multifractured horizontal wells in unconventional reservoirs with prevailing transient (linear) flow. Upon selection of an appropriate β B D F —which mainly depends on the type of flow regime (i.e., radial or linear)—and using the proposed equations, type curves can be generated that provide a convenient method...

...-balance pseudotime reservoir forecast application linear flow oil rate log-log plot drillstem/well testing semilog plot production rate actual gas rate BDF actual oil rate Empirical methods used historically for conventional reservoirs, such as those based on Arps’ decline-curve...

...—in addition to establishing the fundamental linear-flow geometry in the drainage volume—alters the ability of the formation to conduct fluids throughout, but with varying degrees depending on the distance from the main fracture plane. We show that, under these circumstances, the reservoir response departs...

.... This interlinear flow period has not been reported previously in the literature because the standard assumption for MSHF reservoirs has been that of a pseudosteady-state transition between the linear flow periods. It is concluded that there is a significant practical potential in the use of process speed as part...

... pressure-transient behavior linear flow Artificial Intelligence Upstream Oil & Gas Exhibition flow regime SPE Reservoir Evaluation warren derivative pressure derivative reservoir wellbore fractured reservoir straight line dual-porosity model interpretation fracture permeability...

... gas hydraulic fracturing knowledge management diagnostic plot Efficiency complex reservoir productivity index Artificial Intelligence Upstream Oil & Gas well performance workflow linear flow fracture recovery surveillance interpretation fracture area History linear transient flow...

... Evaluation primary fracture fracture interference horizontal well University fracture half-length fracture system grid secondary fracture shale-ga reservoir gas reservoir single-fracture representation linear flow fracture Various analytical and semianalytical solutions have been...

... (longterm transient linear flow). Uncorrected data appear to have a very short transient-linear-flow period, followed by apparent boundary-dominated flow. The impact of the applied corrections on the estimates of system permeability and fracture half-length is demonstrated, as is the impact on production...

... Drillstem Testing continuity region 3 linear flow horizontal well equation Fig. 1 Horizontal well with multiple branch fractures (a) and its representation by a model ( k 1 > k 2 ) (b). Brown et al. (2009) suggested an analytical solution to describe the pressure distribution...

... ) . (4) q o = f o q L . 2 5 2012 3 9 2012 9 7 2012 6 12 2012 19 4 2012 28 12 2012 Copyright 2012, Society of Petroleum Engineers waterflooding formation linear flow Modeling & Simulation fracture water Upstream Oil & Gas...

...Morteza Nobakht; C.R.. R. Clarkson Summary Many tight/shale gas wells exhibit linear flow, which can last for several years. Linear flow can be analyzed using a square-root-of-time plot, a plot of rate-normalized pressure vs. the square root of time. Linear flow appears as a straight line...

... be mentioned that the same approach as Clarkson et al. (2012) is used to model the matrix transport in tight gas/shales. The reader is referred to that work for details of the modeling approach. In this section, the methodology to properly analyze the linear flow from a fractured well in a tight/shale...