【摘 要】
：
A significant fraction of the conventional oil reserves globally is in carbonate formations which contain a substantial amount of residual oil.Since primary and secondary recovery methods fail to yield above 20％-40％ of original oil in place from these res
【机 构】
：
Department of Chemical Engineering, Khalifa University of Science and Technology, SAN Campus, Abu Dh
论文部分内容阅读
A significant fraction of the conventional oil reserves globally is in carbonate formations which contain a substantial amount of residual oil.Since primary and secondary recovery methods fail to yield above 20％-40％ of original oil in place from these reserves,the need for enhanced oil recovery (EOR) techniques for incremental oil recovery has become imperative.With the challenges presented by the highly heterogeneous carbonate rocks,evaluation of tertiary-stage recovery techniques including chemical EOR (cEOR) has been a high priority for researchers and oil producers.In this review,the latest developments in the surfactant-based cEOR techniques applied in carbonate formations are discussed,contemplating the future direction of existing methodologies.In connection with this,the characteristics of heterogeneous carbonate reservoirs are outlined.Detailed discussion on surfactant-led oil recovery mechanisms and related processes,such as wettability alteration,interfacial tension reduction,microemulsion phase behavior,surfactant adsorption and mitigation,and foams and their applications is presented.Laboratory experiments,as well as field study data obtained using several surfactants,are also included.This extensive discussion on the subject aims to help researchers and professionals in the field to understand the current situation and plan future enterprises accordingly.
其他文献
Hydraulic fracturing technology can significantly increase oil production from tight oil formations,but performance data show that production declines rapidly.In the long term,it is necessary to increase the development efficiency of block matrix,surfacta
To improve the rate of penetration (ROP) in drilling deep and hard formations,this paper proposes a new drilling method called coiled tubing partial underbalanced drilling (CT-PUBD).As a preliminary investigation into the new drilling method,this paper pr
To investigate the efficiency and stability of Venezuela\'s oil-oriented economy,this paper applied entropy to the analysis.Based on this method,Venezuela\'s oil-centered industry,inefficient regulatory system,and insensitive response to external chan
Wellbore failure can occur at different stages of operations.For example,wellbore collapse might happen during drilling and/or during production.The drilling process results in the removal of an already stressed rock material.If the induced stresses near
Less than 10％ of oil is usually recovered from liquid-rich shales and this leaves much room for improvement,while water injection into shale formation is virtually impossible because of the extremely low permeability of the formation matrix.Injecting carb
The most prominent aspect of multiphase flow is the variation in the physical distribution of the phases in the flow conduit known as the flow pattern.Several different flow pattems can exist under different flow conditions which have significant effects
Diffusion is an important mass transfer mode of tight sandstone gas.Since nano-pores are extensively developed in the interior of tight sandstone,a considerable body of research indicates that the type of diffusion is mainly molecular diffusion based on F
The paper presents a novel hydraulic fracturing model for the characterization and simulation of the complex fracture network in shale gas reservoirs.We go beyond the existing method that uses planar or orthogonal conjugate fractures for representing the
Deep-water deposition is a current issue in sedimentological research.Sandy-debris-flow sandstones and turbidity-current sandstones are the main types of sandstone that are the focus of considerable disputes in this research.Previous studies mainly focuse
The Lower Cretaceous Xiagou Formation contains the major source rocks for the crude oils discovered in the Qingxi Sag and the South Uplift in the Jiuquan Basin,northwestern China.The Xiagou Formation source rock was formed in a closed,anoxic,reducing,alka