... reservoir asp flooding alkali upstream oil & gas emulsification na 2 surfactant Introduction Alkali-Surfactant-Polymer (ASP) flooding is one of the most important chemical flooding enhanced oil recovery (EOR) technologies, and has wide applications in different reservoirs, including...

... and manage deep reservoirs both onshore and offshore. These capabilities and know-how put petroleum industry at the forefront to capture, utilize, and store carbon dioxide and other greenhouse gases in the subsurface. The objective of this paper is to review the existing body of literature and outline...

... Abstract Low primary and secondary recoveries of original oil in place from modern unconventional reservoirs begs for utilization of tertiary recovery techniques. Enhanced Oil Recovery (EOR) via cyclic gas injection ("huff ‘n puff") has indeed enhanced oil recovery in many fields and many...

.... The objective of this study is to demonstrate how optimal reservoir management and operation strategies (including well completions and controls) can be used to optimize both CO 2 storage and oil recovery. The optimization problem was focused on jointly estimating the well completions (i.e., fraction...

... Daqing reservoir condition. modeling & simulation injection pressure polymer flooding enhanced recovery vasp zhao 2017 iorf evaluation chemical flooding methods field test viscosity asp flooding zhao 2019 oil recovery flooding sand body upstream oil & gas injection scheme...

... 2 , and they are mainly designed to solve the matrix problem for far-wellbore conformance control. Overall, the project has provided a series of reliable and cost-effective swelling-rate-controllable particle gel products that can be used to solve the different reservoir conformance problems for CO...

...)-dione (TMAD) for six months at 37 °C, 85 °C, and 95 °C, indicating these biocides have the potential for use in microbial control during scleroglucan implementation under various conditions. Rheological studies indicate the viscosifying power of scleroglucan is largely unimpacted by common reservoir...

... Abstract The main objective of this work is to investigate efficient estimation of the optimal design variables that maximize net present value (NPV) for the life-cycle production optimization during a single-well CO 2 huff-n-puff (HnP) process in unconventional oil reservoirs. During...

... price environment. waterflooding micellar polymer flood chemical flooding methods chemical eor formulation design enhanced recovery concentration implementation micellar polymer project chemical cost operator alkali upstream oil & gas eor project economics reservoir formulation...

.... Here, we present a practical framework to regenerate the PVT considering the shale nanopores effect for a more reliable compositional simulation of gas injection in shale reservoirs by using existing commercial simulators. The pore-size distribution in shale reservoirs can be discretized into a bulk...

... Abstract This paper introduces a new approach for using solvents for enhanced oil recovery from organic-rich unconventional reservoirs. The heavy organic components in the reservoir rock, i.e. bitumen, are included in the phase behavior model using a cubic equation-of-state. The phase behavior...

... Abstract In order to find effective replacement technology for ultra-heavy oil reservoirs at the late stage of horizontal well cyclic steam injection, pilot test on infill steam-assisted gravity drainage (SAGD) development has been carried out in Xinjiang Oilfield, China. In this study, a fine...

... Abstract The paper discusses the alkaline surfactant polymer (ASP) flood pilot design including formulation development, pilot area selection, well and pattern type, slug size and sequence, slug viscosity etc for the Bhagyam field. It also discusses the various lab, well and reservoir...

... Abstract Reservoir cooling by water or waste-water injection can significantly alter the reservoir stress. The out- of-zone fracture growth is substantially affected by this poro-thermo-elastic stress changes occurring in heterogeneous rock layers. No previous study, however, systematically...

... of stimulated volume. Two key preliminary steps in gas HnP modeling include characterization of reservoir fluid (and its interaction with injected gas) and evaluation of hydraulic fracture system. This study focuses on simplified analytical tools for estimation of stimulated reservoir size from production data...

... Abstract Single well chemical tracer tests (SWCTT) have been extensively used in the field to estimate residual oil saturation in a reservoir for more than 50 years. They are often used as characterization methods to gauge EOR potential/performance. Therefore, an accurate estimation of S...

... of the stabilized emulsion. However, density and viscosity of the emulsion were influenced, which will affect fluid flow in the reservoir. A synergistic effect of smaller size (higher effective concentration of particles) and more neutral surface charge of the modified particles resulted in emulsification of crude...

... Abstract Lower oil production rate, conformance, and poor sweep efficiency are major concerns in an enhanced oil recovery (EOR) flood when implemented across multiple intervals. Oil recovery and flood performance in reservoirs with multiple lobes characterized by heterogeneous rock properties...

... Abstract The interplay among reservoir heterogeneities, structural complexities and unfavorable mobility ratios are usually responsible for premature water breakthrough in brown fields across the world. Recently, a deep conformance control technology, known as Thermally Activated Particle (TAP...

... Lessons from gas injection in oil reservoirs are that gas volumetric swept efficiency is inherently low due to gravity override caused by low gas viscosity, density and formation heterogeneity. Therefore, methods to improve volumetric sweep efficiency are valuable. Gas mobility can be reduced...