.... Core flooding tests were performed at reservoir pressure and different temperatures to measure possible permeability changes by DESs injection. To understand the mechanisms of formation damage, different measurements were performed: Critical injection rate beyond which fines migration will take place...

... during any phase of gas recovery from tight gas reservoirs. Tight gas reservoirs normally show significant damage during well drilling, completion, stimulation and production. Therefore, they may not flow gas at optimum rates without advanced production improvement techniques. The main damage mechanisms...

... Abstract Scale inhibitor squeeze treatments in unfractured reservoirs can be readily simulated in matrix flow models, designing such treatments for application in fractured reservoirs is less routine. One reason for this is that the flow process and transport mechanisms by which the inhibitors...

... Abstract Several different physics mechanisms yield in enhanced oil recovery with low salinity water flooding: reduction in interfacial tension, alteration of wettability, mobilization and size exclusion of fines. In this paper the laboratory study of fines migration and straining during low...

... the conditions of the liner and assist Nexen in identifying the mechanisms of the liner failure. The study included a physical examination of the liner, direct measurements of the liner aperture, permeability measurements, epoxy impregnation of the selected sections of the liner, and the analysis of plugging...

... as combining with current techniques to target their sampling locations. The combination of laboratory data with tools that allow visualisation of both the distribution and nature of damaging mechanisms makes laboratory data more valuable and therefore decreases risk in operational decision-making...

... of residual drilling mud. Two formation damage or productivity impairment mechanisms were identified; scaling and hydrocarbon banking. Scaling Carbonate scale was caused by the interaction of reservoir brine and the high concentration of carbonate ions in the high pH K-formate drilling fluid. Due...

... Abstract From theoretical work related to production mechanisms to the development and application of preventative and remedial technologies, water control has been and continues to be a broadly studied subject in the oil industry. Although the last word appears to be elusive and trial...

... mechanisms during different processes of production is vital in optimizing production and injection processes in order to minimize the formation damage. In this study, asphaltene deposition during natural depletion and miscible CO 2 injection was conducted through core flooding tests at reservoir...

... asphaltene deposition during primary depletion and CO 2 injection. The main purpose of this study is to investigate and to compare asphaltene deposition mechanisms due to primary depletion and CO 2 injection. The solid model as thermodynamic model was applied to investigate asphaltene precipitation...

... selection annular space upstream oil & gas sand control completion mechanism annular gap completion production control wellbore integrity wellbore design control completion pressure drop grain size spe 143164 sand control method prediction non-compliant sand control completion society...

... (2008) . The main assumptions of the model for transport of the colloidal material in porous media include: no particle coagulation or attrition, negligible external filter cake, particle-rock repulsion leading to size exclusion mechanism of the particle capture, no diffusion, one pore is blocked...

... residual gas trapping. They recommended injecting CO 2 into the lowest section of the storage formation because as CO 2 rises, more of it will be left behind as residual gas. In terms of risk assessment, residual trapping is considered to be a safe trapping mechanism ( Nghiem et al., 2009 ) which can...

... real-time monitoring, and chemical-mechanical self-diverting fluids with degradable fibers to treat high-temperature formations. These improvements and evolutions have brought about solutions to historical problems and made it possible to optimize stimulation treatments in complex carbonate reservoirs...

... damage and provided extended squeeze life time in the field. Significant permeability reductions were observed for both the Clashach formation and the reservoir during core flood tests when this new chemistry was applied in an aqueous package. The authors will discuss and identify the mechanisms...

... reservoir with moderate to strong aquifer. This high permeability sand is distributed fairly well across the field and is subdivided into upper and lower lobes. A comprehensive diagnostic of water flow entry mechanisms begins with compilation of critical information such as geological and reservoir data...

... Abstract Predicting gravel pack performance is a complex and difficult task. Current practices account for expectation of performance by assigning a range of skin values that consider all the mechanisms that generate formation damage in the gravel pack. Other methods of identifying damage...

..., an old field located in Mendoza-Argentina, with more than 40 years of water injection. In this reservoir significant injectivity losses were recorded when fresh water was replaced by produced water in the 90's. Formation Damage mechanism is mainly caused by external cake. Particles are principally, iron...

... or release fines. It is well recognised in our industry that clay fines migration is a common and significant damaging mechanism ( Miranda et al 1993 , Byrne et al 2003 ). Native clays can be caused to disaggregate, fragment and move by physical (flowrate during drawdown, perforation or fracing...

... untreated sample entrapment pressure gradient porous media reservoir viscosity European Formation Damage Conference shear rate drilling fluid chemistry drilling fluids and materials mechanism fluid invasion saturation differential pressure Moreno invasion permeability flow resistance...