... Abstract The nature of well completions in the oil and gas industry continues to evolve. Although the effects of completions and spacing on initial production are well reported, how they affect ultimate recovery and terminal decline is not well understood. Over the last decade, drilling...

... Match, and then predicting the Estimated Ultimate Recovery (EUR) in two scenarios. Relative permeability curves for each rock type are prepared using corey saturation function equations. The normalization phase requires using separate sets of equations, after which the normalized curve...

... Abstract Estimating ultimate recovery using information from the boundary-dominated flow regime is not practically achievable in unconventional (low permeability) resources since the time required to reach this flow regime is quite large (typically years). In response to this problem...

... Oil & Gas breakthrough enhanced recovery injection pressure computational domain co 2 reservoir domain Modeling & Simulation matrix 10 primary depletion ultimate recovery hydraulic fracture reservoir hydrocarbon gas Oil Recovery gas injection injection permeability recovery...

... Abstract Maximizing ultimate recovery in unconventional wells presents many completion challenges. Among the most relevant, is consistently initiating multiple dominant fractures in close proximity to each other along the lateral. The most common fracturing method, Plug-and-Perf (PnP), relies...

... dimensionless fracture conductivity closure stress proppant pack upstream oil & gas concentration initial production rate ultimate recovery reservoir production rate fracture hydraulic fracturing fracture length history conductivity proppant permeability application hydraulic fracture...

.... deliquification technique deployment gas well deliquification field life technique application bcm artificial lift system netherlands spe 166362 plunger lift upstream oil & gas liquid loading roadmap foam injection ultimate recovery operator velocity string ebn gas field society...

... saturation at that location. Thus, steam-solvent co-injection causes a higher oil production rate because of an additional reduction in oil viscosity and a higher ultimate recovery because of a reduction in residual oil saturation. observation line viscosity oil viscosity canadian petroleum...

... ultimate recovery and production forecast associated with the chosen development concept. A 2010 upstream industry benchmarking consortium reviewed global performance of E&P projects and concluded that the majority of production forecasts presented at project approval were not attained. In many cases...

...The Effects of Geomechanics on Drawdown One of the objectives of this study is to evaluate the first order impact of in-situ stress variation on productivity decline and hence the estimated ultimate recovery (EUR). As in conventional reservoirs, changes in reservoir temperature and pressure...

... that these lower quality proppants will not result in a significant reduction in initial production rate and/or ultimate recovery. In actuality, lower fracture conductivities can and do reduce both initial production rates and ultimate recoveries. The need for maximum conductivity was evidenced by Lehman et al...

... of a well. production monitoring depletion specific enthalpy artificial lift system gas Well Deliquification liquid liquid loading recovery factor Reservoir Surveillance Efficiency recovery production control Upstream Oil & Gas enthalpy thermodynamic limit ultimate recovery...

... Ultimate Recovery. Darley (2003) also reports an expectation of 25% to 35% improved well lifecycle value due to the application of long-term utilization of real-time information. Table 1 Shell Smart Well Studies, Relative business impact Relative Value Business Factor 5% Reduced...

.... The initial GOR constraint for the wells is referred to as the initial GOR plateau. This initial plateau determines the balance between ultimate recovery and present value of oil production. Figure 3 shows the balance between ultimate recovery and present value of oil for various initial GOR plateaus...

... the ultimate recovery of a well or a field. The procedure developed and outlined in this paper requires very little input data and is easily implemented. By modifiying the equations for dimensionless rate and dimensionless cumulative production derived for the single phase model, a new set of equations...

... ultimate recovery diffusion experiment interaction matrix diameter concentration Introduction Counter-current diffusion The efficiency of any oil recovery process is evaluated by three parameters: (a) the ultimate recovery, (b) time to recover this amount (the rate of recovery), and (c...

... of these areas is presented and several technical and operational gaps are identified. One of the most striking findings is the low ultimate recovery anticipated from many subsea wells. Two new technologies that can have a positive impact on recoveries are subsea multiphase pumping and subsea separation...

... reserves evaluation upstream oil & gas recovery estimate aur actual ultimate recovery questa engineering corp dimensionless production recovery fraction irreducible uncertainty fraction percentage error society of petroleum engineers spe 84146 reserve estimate graph cumulative production...

... among the project team members carrying out the static and dynamic modeling. The above steps outline the process adopted to evaluate the range of ultimate recovery of the Harweel Cluster reservoirs, given the high degree of subsurface uncertainty. In the following sections the impact of subsurface...

... to incorporate non-Darcy and multi-phase flow effects. In addition to production results, economic analyses are provided to show that the increased job cost is quickly recovered with improved production. Estimated ultimate recovery for each well is presented in an attempt to quantify the long term effects...