... Abstract The Flow Zone Indicator (FZI) depends on permeability and porosity. The permeability of a reservoir is one of the most difficult properties to determine, since the models to calculate permeability use input from several logs (gamma ray, density-neutron, sonic, etc.). Permeability...

... Abstract The hydraulic fracturing technique is based on pumping a given fluid at a high pressure greater than the rupture pressure of the reservoir rock, which causes the creation of high permeability channels inside the rock. This process also makes the fluid contained in the formation flow...

... Fracture Evaluation fracture matching fracture treatment fracture geometry Upstream Oil & Gas relative permeability model calibration characterization society of petroleum engineers permeability reservoir drillstem/well testing field development optimization lindero atravesado block...

... Abstract Foamed fracturing fluids have been used in unconventional reservoirs to reduce the water use and minimize deleterious impact on water-sensitive formations. As part of a Department of Energy (DOE) sponsored program, we previously identified an optimal thermodynamic pathway to transform...

... Abstract Reservoir fluids are a complex hydrocarbon system that passes unique compositional stages when pressure and temperature change. Proper collection and accurate evaluation of a representative reservoir fluid sample during the exploration phase is one of the first crucial steps describing...

... Abstract Shale reservoirs have a significant fraction of total pore volume coming from pore sizes in the range of nanometers. Fluid phase behavior in these small pores deviates from the behavior in larger pores (known as bulk PVT). Modifications to thermodynamic modeling coupled with capillary...

... Abstract In Argentina, unconventional reservoir development learning processes have been continuously advancing, specially lowering project costs in Vaca Muerta's different zones, light oil, gas-condensate and dry gas. However, the actual international oil and gas prices are forcing companies...

... Abstract The paper highlights the limitations in the use of cubic equations of state (CEOS), for modelling reservoir behavior of liquid phase (black and volatile oil), in highly undersaturated reservoirs. This is important in high shrinkage volatile oils for which complex dependence of fluid...

... Abstract Unconventional reservoirs have been defined as formations that cannot be produced at economic flow rates or that do not produce economic volumes of oil and gas without horizontal well with hydraulic fracture treatments. Horizontal well fracturing efficiency in unconventional reservoirs...

... costs and non-producing time losses are generated. Log modelling arises as a need for characterizing dynamic properties of rocks and give solutions to geomechanical problems. They are based on the information given by acoustic and density logs, which are normally run in the reservoir while...

... properties of the field. In this study, we present a wellbore-based, integrated geomechanics-seismic model that aims to improve the current stress field prediction and characterization of naturally fractured reservoirs, and ultimately, to optimize reservoir development. The integrated model, starting from...

... Abstract Analytical models available in Rate-Transient-Analysis (RTA) packages are widely used as tools for history matching and forecasting production in unconventional resources. There has also been an increasing interest in the use of numerical simulation of unconventional reservoirs...

... log analysis spectral gamma ray Artificial Intelligence well logging uranium content information gamma ray formation evaluation completion design well placement optimized completion design evaluation Reservoir Characterization Upstream Oil & Gas correlation operation gamma ray tool...

... Abstract The objective of this work is to show that the estimated stimulate reservoir volume (SRV) from micro seismic analysis under dynamic conditions not always represents the SRV acting as hydrocarbon collector and need to be calibrated with total organic content (TOC), vertical and areal...

... Abstract Induced fracture complexity maximization, in addition to the primary hydraulic fracture, to improve the recovery efficiency or productivity of gas or liquids in unconventional resource shale reservoirs has been accepted and fully implemented by the industry. As a result, stimulation...

... Abstract In many companies, production forecasting using multiple segments is gaining traction. Theoretically, the multiple segments are used to capture the different flow regimes in the reservoir over a period of time. A three-segment Arps decline model has been prevalently used, where...

... Abstract Objectives/Scope Hydraulic fracturing is today a standard when developing unconventional reservoir plays. This is studied through different models, based on a great deal of characterization data gathering and analysis. Unfortunately, numerical limitations impose drastic...

... Abstract Forecasting of production in unconventional prospects has gained a lot of attention in the recent years. The key challenges in unconventional reservoirs have been the requirement to put online a) a large number of wells in a short period of time, b) well productivity significantly...