... 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...

... 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...

... measured include: formation breakdown pressure, estimation of formation closure and pore pressure, estimated permeability, and leak-off coefficients. URTeC 2677 Flow regimes are identified during the shut-in period. The fluid flow within the fracture transitions from wellbore storage to linear flow, bi...

... 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 permeability is mostly controlled by fracture width and may occur very soon, in a few days or weeks, while the linear flow through...

... transient may extend to many hours or days, or may never appear. This paper introduces a new model showing that miscible fluid injection produces a linear flow response in the early BC DFIT falloff transient that is easily recognized on a Bourdet log-log diagnostic plot as a pressure derivative trend with 1...

... 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...

... 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...

... 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...

... Abstract The dominant transient flow regime for multi-fractured horizontal wells producing from low-permeability and shale (unconventional) reservoirs has historically been interpreted to be transient linear flow (TLF) in the framework of classical diffusion (CD). Recently, observed...

..., 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...

..., 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...

... 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...

... 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...

.... 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...

... 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...

... 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...

... flow regime and reservoir depletion was established 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...

... performance Midland Basin linear flow hydraulic fracturing completion hongjie xiong University Land asset and portfolio management Institute fracture half-length completion design unconventional resource technology conference URTeC: 2884337 Lessons Learned from Existing Horizontal Fractured...

... linear flow interpretation production diagnostic lindero atravesado block permeability URTeC: 2697509 Performance Based Reservoir Characterization in a Tight Gas Reservoir System Case Study from Lajas and Punta Rosada Formations in the Neuquén Basin, Argentina Lucia Lamberghini*, Daniel Parra...

... Abstract This work was motivated by field observations of two infinite-acting flow regimes in multi-fractured horizontal wells that are seen as two straight lines on a cross plot of cumulative production versus the square root of time. The occurrence of one linear flow regime followed...