The complex pore structure of low-permeability sandstone reservoir makes it difficult to characterize the heterogeneity throat. Taking Sanjianfang formation in QL oilfield as an example, fractal dimension different storage spaces is calculated by using theory based on casting thin section, scanning electron microscope, and high-pressure mercury injection, correlation between porosity, permeabil...

Based on the analysis of a large number core samples, logging results, interpretation data and dynamic in study area, characteristics Chang 6 reservoir Zhouguan area Baihe are studied, favorable areas predicted. The results show that lithology is mainly light gray fine-grained to very feldspar lithic sandstone. pore types residual intergranular pores dissolved pores, including debris microfract...

[1] Numerous single-hole and cross-hole pneumatic injection tests have been conducted in unsaturated fractured tuff at the Apache Leap Research Site (ALRS) near Superior, Arizona. Single-hole tests have yielded values of air permeability at various locations throughout the tested rock volume on a nominal scale of 1 m. Cross-hole tests have yielded equivalent air permeabilities (and air-filled p...

A novel method for the integration of multi-scale rock and fluid information was performed on a single well deep-water exploration discovery. The method integrates diverse data types through physically constrained models into a single earth model. Development scenarios were optimized through multiple flow simulations. The development scenarios were designed to investigate the range of uncertain...

Abstract A significant behavior of carbonate reservoirs is poor correlation between porosity and permeability. With the same porosity, permeability can vary by three orders magnitude or more. An accurate estimation for reservoir has been a challenge many years. The aim this study was to establish relationships pore throat, This indicates that throat radius corresponding mercury saturation 20% (...

Porosity, permeability, and wettability are crucial factors that affect the oil–water displacement process in reservoirs. Under subsurface conditions, integral effects of these extremely difficult to document. In this paper, waterflooding experiments were carried out using a core flooding system monitored with X-ray dual-energy CT. The mesoscale, three-dimensional characteristics water displaci...

electro-facies is a unit of the vertical sediments sequence on the wire-line logs that can be differentiated from the upper and lower units. for detection of the electro-facies interval in kangan and upper dalan formations in south pars gas field, wire-line log and core data analysis (wells a, b, c and d) were used. note, only core data analysis in well a were available. first, thin-sections st...

The forecast for oil production from an reservoir is made with the aid of simulations. model parameters in simulations are uncertain whose values estimated by matching simulation predictions history. Bayesian inference (BI) provides a convenient way estimating mathematical model, starting probable distribution parameter and knowing BI techniques history require Markov chain Monte Carlo (MCMC) s...