... production in the 1930's, and also used in Alberta, in the past. It is hypothesized that allowable rate restrictions on high productivity gas wells, could restrict gas output enough, to provide a more stable market. This paper examines output from a large "Control Area" in western Alberta. A review...

... time is far from the start of BDF, assuming b = 0.3 for a solution gas-drive oil well and b = 0.4 for a gas well, using this method (with a larger D lim value) will result in a conservative forecast with higher certainty. YM-SEPD and SEPD + Arps Hyperbolic Decline Yu and Miocevic (2013...

.... Directional Drilling gas well production monitoring Reservoir Surveillance oil decline rate Upstream Oil & Gas perforated interval History united states decline trend decline rate delivery hyperbolic decline equation gas decline rate top perforation high decline rate complex reservoir...

... ensure that our proposals could be applied universally and not simply to those wells with well-behaved production histories. production control production forecasting production monitoring shale gas Reservoir Surveillance complex reservoir gas well production data regime forecast result...

... Abstract Probabilistic decline curve analysis (PDCA) methods have recently been developed to quantify uncertainty in production forecasts for hydraulically fractured horizontal shale gas wells. The Markov Chain Monte Carlo (MCMC) method has been proposed as a fast and reliable probabilistic...

... Abstract Since 2008, a number of new empirical methods have been introduced to the petroleum industry, specifically for gas wells in tight and shale reservoirs. Among them, Valko’s Stretch Exponential Production Decline (SEPD) and Duong’s Rate Decline for Fractured Dominated Reservoir are two...

... Abstract Over the past 3 years fiber optic slickline distributed temperature measurements (DTS) have become a commonplace method of monitoring Canada’s Deep Basin commingled gas wells produced through velocity string completions. The use of velocity string completions prohibits conventional...

... Abstract In this study, three shale gas production models are evaluated against field data from 17 gas wells in four different shale types. Gas production from unconventional gas reservoirs keeps growing. Although there are many models have been published in the literature, sometimes...

... Abstract Several analytical decline curve models have been developed recently for shale gas wells ( Anderson et al. 2010 ; Ilk et al. 2008 ; Valko and Lee 2010 ). However, despite the considerable uncertainty associated with forecasting shale gas production, these authors either do...

... the UFD-determined optimum designs and then departing towards suboptimal conditions. These include fracture length, the fracture conductivity and fracture height (by using the concept of fracture aspect ratio). We also apply the same approach to study gas wells, in which turbulence effects in moderate...

... (vertical versus horizontal) and number and size of treatments is a very important production engineering exercise. For gas wells one of the most important additional considerations is turbulence which happens in two places: the reservoir and then in the created fracture. This paper will discuss production...

... Abstract The dominant flow regime observed in many hydraulically-fractured tight/shale gas wells is linear flow. This flow regime may continue for several years, and will ultimately become boundary-dominated flow, at much later times. Nobakht et al. (2010) introduced a simplified method...

... Abstract In SPE 133615, Nobakht et al. [ 1 ] introduced a simplified method of production forecasting for tight/shale gas wells which exhibit extended periods of linear flow. The method is simple as it relies principally on a plot of inverse rate versus square root time. In the present work, we...

... Abstract Traditional decline methods such as Arps’ rate-time relations and their variations do not work for super-tight or shale gas wells where fracture flow is dominant. Most of the production data from these wells exhibit fracture-dominated flow regimes and rarely reach late-time-flow...