The use of water soluble polymers for enhanced oil recovery (EOR) provides an additional chance to extract between 5 to 30% of total oil in place from drilled and mature reservoirs [1]. A big number of patents, mainly from multinational companies, remark the importance of polymers for EOR [2]. The role of the polymer in the aqueous solution is to increase the viscosity of the displacement solut...

Under the application of electric fields, the structure of electrorheological (ER) solids can be changed from the body-centered tetragonal lattice (ground state) to other lattices. For a particle in the lattice, we derive its dipole factor by taking into account both the local-field effect arising from all the other particles and the multipolar interaction between two touching particles, throug...

the biqian-10 block, located in henan oilfield of sinopic, contains many thin and interbedded reservoirs, which have been operated by cyclic steam stimulation for 20 years or more. therefore, it is a challenge to implement the conventional steam flooding. in order to improve the recovery of steam flooding, urea was used to assist steam flooding. urea can decompose into co2 and nh3, which are be...

The most common method for resolving water-in-oil (W/O) emulsions is chemical demulsification. bottle test a recommended procedure to analyze combination of essential parameters such as the demulsifier dosage, residence time, heat, degree agitation generate emulsion and effects after injection. It an extensive time-consuming selection procedure. Furthermore, previous guideline reported in liter...

This paper is the first of a series that attempts to assess the possible health and safety risks associated with large scale CO2 sequestration in deep brine reservoirs. The approach is based on analysis of available data on the operational track record from CO2 transportation and injection associated with enhanced oil recovery (CO2-EOR) in the US. This paper is particularly concerned with ident...

We develop a social–structural perspective on the relationship between employee–organization relationships (EORs) and team creativity. We argue that the mutual investment EOR approach, in which employers expect high levels of employee contributions and offer extensive inducements, will be associated with higher team creativity relative to other EOR approaches. We also advance the argument that ...

Water-soluble polymers are known to be used in chemically enhanced oil recovery (EOR) processes, but their applications are limited in high-temperature and high-salinity oil reservoirs because of their inherent poor salt tolerance and weak thermal stability. Hydrophobic association of partially hydrolyzed polyacryamide (HAHPAM) complexed with silica nanoparticles to prepare nano-hybrids is repo...

Morphologically controlled Pd-based nanocrystals are the most efficient strategies for improving electrocatalytic ethanol oxidation reaction (EOR) performance; however, their morphological-EOR activity relationship and effect of electrolytes at a wide pH range still ambiguous. Here, we have synthesized porous self-standing Pd clustered nanospheres (Pd-CNSs) nanocubes (Pd-NCBs) EOR in acidic (H2...