... Abstract Heavy oils are characterised depending on their density rather than their viscosity [ 1 ]. Although there are various definitions for what constitutes heavy oil it is commonly agreed that the majority contain impurities such as asphaltenes, waxes and carbon residue. The API gravity...

... temperature foam stability Upstream Oil & Gas viscosity drainage rate surfactant solution nanoparticle experimental investigation Introduction Gas injection commonly used as an EOR method to improve the reservoirs productivity thought reduction of oil viscosity. However, gravity override...

... Oil & Gas viscosity Thickness laboratory porosity Oil Viscosity heavy oil upgrading complex reservoir cathode well enhanced recovery april 2018 application polarization reference well electro kinetic oxidation carbonate reservoir electric enhanced oil recovery grainstone SARA...

... Abstract There are various types of reservoirs in Dagang oilfield, in which the geological reserves of heavy oil reservoirs account for 43.1% of the total geological reserves developed. In Liuguanzhuang, Kongdian and other heavy oil blocks, the average viscosity of crude oil is 8537 mPa•s...

... Abstract KOC's Umm Gudair/Abduliyah Tayarat reservoir has large oil reserves but is a challenging target due to low formation permeability and high oil viscosity. This study is focused on feasibility assessment of hybrid thermal and chemical methods incorporating both laboratory and simulation...

.... In order to improve the mobility ratio of water drive, a new type of high temperature resistance and high salinity polymer SWP322 has been developed. In this study, the compatibility, viscosity, temperature resistance, salt resistance and shear resistance of the polymer in Lukeqin reservoir were evaluated...

... Modeling & Simulation Artificial Intelligence oil production viscosity Upstream Oil & Gas application enhanced recovery Engineering Oil Viscosity crude oil heavy oil California recovery method reservoir Oil Recovery heavy oil reservoir reservoir simulation Compound...

... to produce due to its high viscosity hence low mobility underground. Kuwait strategy is shifting focus to these types of oils since conventional medium oil and other less-quantitative-light-oil reservoirs are continuously depleting. The study's interest is directed towards a specific type of EOR oil, which...

... and the lessons learned from the CSS and evaluation of initial response of steam flood pilots are very useful in risk identification and mitigation applicable to the commercial phase. thermal method enhanced recovery SAGD Upstream Oil & Gas cold production well completion viscosity injection well...

... viscosities that these oils have. This research investigates the ability of several low cost chemical solvents to reduce heavy oil viscosity and also develops four novel formulations with high stability under harsh reservoir conditions and high solubility in crude oil to aid in the reduction of heavy oil...

... a better understanding of the possible mechanisms involved in the CO 2 assisted CSS. SAGD viscosity cyclic steam stimulation thermal method Upstream Oil & Gas co 2 enhanced recovery mechanism solubility steam-assisted gravity drainage reservoir pressure CSS reservoir society...

... Abstract Heavy and extra-heavy crude oil reservoirs hold physicochemical characteristics that can frequently turn their operation into a technical and economic challenge. Typically, heating techniques are used to decrease oil viscosity. Areas with steam injection are susceptible to developing...

... polymer pilot was performed in this dome-shaped heavy oil reservoir to assess polymer sweep performance as well as losses to the strong water aquifer. An inclusive real-time surveillance programme was executed to monitor key parameters including pressure, injection/production rates, viscosity and water...

... Abstract The Umm Niqa Lower Fars (Heavy Oil Field) oil reservoir has very favorable properties of high permeability, low temperature, and moderate oil viscosity for polymer flooding and work is progressing towards implementing a polymer pilot in this target reservoir. Nonetheless, Heavy Oil...

...-oil ratio (10-30) and with little or no primary drive mechanisms. The project requires overcoming certain challenges the following challenges are identified as the key challenges: Limited fluid mobility which is due to the high viscosity of the oil. Absence of drive support associated...

.... The reservoir in this field is the shaly-sand Gharif formation, in which the Middle and Lower Gharif are separated from each other by either a paleosol or competent shale. The hydrocarbon in these sands has an observed viscosity variation as a function of height above free water level (HAFWL) due...

... Abstract X oil field was located in eastern China. The lithological component of formation is fine sandstone. The typical characteristics are low-permeability and low-porosity with high viscosity, resin and asphaltene contents, the detail characteristics as follows:1)Shallow buried depth (650...

... parameters as well as completions standoff from current oil-water contact (OWC). Since the current oil API is very close to that of water, the critical rate is not a strong function of the density difference of the reservoir fluids, however, difference in the fluid viscosities displayed a some degree...

... considering their impact on the main issues involved in, such as fluid viscosity, flow capacity, total compressibility and petrophysical properties. In this analysis, we present various well tests from many low transmissivity oilfields and some other heavy oil reservoirs in Mexico that produce from distinct...

... Abstract Oil-solvent mixing is essential during solvent injection applications to reduce the viscosity of oil but mass transfer by diffusion becomes slower as the oil becomes heavier. Thus, an interface exists between oil and solvent at certain times being stronger in the beginning...