... Abstract Polymer flooding is very promising chemical enhanced oil recovery technique because it has been widely field tested in many oil fields and commercially applied in several countries in onshore reservoirs. The understanding of polymer flooding mechanisms is still developing, even though...

... already gone through this optimization process with expected gains up to two hundred million barrels of additional oil recovery. A balance between audacious strategies for project and profit acceleration and flexibility strategies for path correction and optimization has been fundamental...

... Abstract Low Salinity water flooding (LSWF) is a potential method for enhanced oil recovery (EOR). Lab and simulation studies of U-III reservoir in Mumbai High field indicates that the reduction of injection water salinity results in significant increase in oil recovery. On the basis...

... Abstract The Gas and Downhole Water Sink-Assisted Gravity Drainage (GDWS-AGD) process functions to enhance oil recovery by placing vertical gas injectors at the top of the reservoir combined with a series of horizontal wells located in the lower part of the reservoir for oil and water...

... Low oil recovery is common for hydrocarbon reservoirs in the Middle East. This is because of the challenging reservoir conditions that are usually encountered in that region. These harsh conditions include high heterogeneity, high-temperature, high-salinity, low permeability, and mixed-to-oil...

.... Incremental oil recovery, water cut reduction, injection profile improvement, and water-oil-ratio (WOR) were considered to examine the polymer flooding efficiency. Besides, this study provides insights into the polymer rheology effect on enhanced oil recovery and conformance control in heavy oil reservoirs...

...Introduction and Background Abstract Low salinity/engineered water injections (LSWI/EWI) have gained popularity as effective techniques for enhancing oil recovery. Surfactant flooding is also a well-established and commercially-available technique in the oil and gas industry. In this paper...

... Al Adasani , A. , & Bai , B. ( 2011 ). Analysis of EOR projects and updated screening criteria . Journal of Petroleum Science and Engineering , 79 ( 1-2 ), 10 – 24 . Alvarado , V. , & Manrique , E. ( 2010 ). Enhanced oil recovery: an update review...

... Two major challenges in CO 2 enhanced oil recovery (EOR) are the high mobility of CO 2 and reservoir heterogeneity. High CO 2 mobility, related to the low density and viscosity of CO 2 , compared to in-situ fluids can cause viscous fingering, gravity override, and flow in thief zones...

...OTC-30601-MS Potential Oil Recovery Enhancement by a Polymeric Nanogel Combined with Surfactant for Sandstone Reservoirs Mustafa Mohammed Almahfood, Saudi Aramco Missouri University of Science and Technology; Baojun Bai, Missouri University of Science and Technology Copyright 2020, Offshore...

..., and the production rate declined rapidly. To further improve the oil recovery, research is carried out for optimization of the replacement production method. First, the reasons for gas breakthrough are analyzed. Potential methods are all analyzed and compared by reservoir simulation and physical experiments...

... solubility formulation salinity surfactant flooding offshore technology conference porous media microemulsion internal ketone sulfonate upstream oil & gas sea water reference formulation interfacial tension chemical flooding methods oil recovery injection phase behavior...

... and high-strength foam, respectively), this simulation study reveals the following findings. First, compared to gas-water injection with no foams, injection of foams can improve cumulative oil recovery and sweep efficiency significantly. Such a tendency is observed consistently at three high, intermediate...

... million gridblocks with sufficiently small gridblock sizes to ensure physical accuracy. Four case studies of polymer flooding and surfactant-polymer flooding are presented. The grid sizes range from 800,000 to 3.7 million gridblocks. The incremental enhanced oil recovery is illustrated by comparison...

... and which drivers were and were not considered during the decision making process. gas lift oil recovery subsea system reduction in-well gas lift fluid temperature capex flowline subsea processing hydraulic jet pump recovery subsea production equipment differential pressure offshore...

... Abstract In surfactant flooding for enhanced oil recovery, adsorption of surfactants on the porous media of an oil reservoir is a major concern. It weakens the efficacy of the injected surfactant in reducing oil–water interfacial tension (IFT) and makes the oil recovery process uneconomical...

... start for the design of any field measurements including EOR pilot operations. concentration numerical model oil recovery simulation laboratory measurement upstream oil & gas capillary end effect experiment relative permeability flooding injection reservoir calibration saturation...

... reservoirs and increase the recovery factors beyond primary depletion by implementing improved and enhanced oil recovery (IOR/EOR) methods. This paper presents detailed review of the advances in IOR/EOR technologies applied to unconventional oil reservoirs. A thorough review of the pertinent published...

... Abstract CO 2 injection to improve oil recovery has been successfully implemented in many oil reservoirs worldwide for almost half century. Conventional CO 2 injection strategies, such as continuous CO 2 flooding, water-alternating-gas (WAG) or carbonated water injection (CWI), were usually...

... for improved field economics with a greater ability than ever before to maximize profit by increasing the oil recovery and reduce the total production time by, in some cases, several years. This has demonstrated to provide considerably improved net present value since the oil production peaks out years earlier...