ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57
Abstract Considering a depressed environment with low oil prices, optimizing the costs linked to polymer injection becomes important. In this paper, the efficiency of two polymers dedicated to Omani southern fields’ conditions have been evaluated: a standard copolymer currently injected in the Marmul ...
Abstract SmartWater flooding (SWF) has been proven as an effective and successful recovery method for carbonates, in which the injected water alters the carbonate rock wettability to produce incremental oil. Core-scale displacement experiments have demonstrated significant incremental recoveries of ...
Abstract Generally partially hydrolyzed polyacrylamides (HPAM) are used worldwide for polymer-based oil recovery processes. However there aree some problems associated with HPAM applications such as, treatment of produced water, oil-water separation and toxicity issues associated with degradation products ...
Abstract Surfactant-polymer (SP) flooding is one of the most promising methods in enhanced oil recovery, especially where an existing waterflooding infrastructure is in place. Surfactants lower the interfacial tension between the injection brine and crude oil, which improves microscopic displacement ...
Abstract While the current global reduction in oil prices has impacted the operating budgets of many oil and gas operators, the need for corrosion control measures to maintain assets has not correspondingly decreased. To maintain the degree of corrosion control that was possible under more favorable ...
Abstract Oil spill dispersants (OSD) are known to be effective tools needed to clean and disperse oil spills. One major concern in the use of dispersants is their toxicity. The toxicity of individual chemicals may be known and be of no concern, but when combined with other chemicals they can have unknown ...
Abstract The global oil price as well as Nigeria’s current reserve is on a continuous alarming decline. With the increasing finding cost of new wells and demand for energy, improving oil recovery from existing wells becomes highly pertinent. Generally, waterflooding leaves approximately two thirds ...
Abstract Wettability of the rock is an important parameter in determining oil recovery. It determines the fluid behavior and the fluid distribution in the reservoir. Aging of the rock changes the wettability of the rock and can affect the residual oil saturation. This paper investigates the effect ...
Abstract In this paper we present a novel Chemical EOR technique in which dimethyl ether (DME), a widely-used industrial compound is utilised as a miscible solvent in conjunction with conventional waterflooding. The end effect of the solvent's application is an increase in oil recovery significantly ...
Abstract With the recent dramatic drop in oil price, production from ultra-tight resources, like the Bakken formation, may drop substantially. Since expenditures for drilling, completion, and fracking have already been made, existing wells will continue to flow, but oil rates will decline—rapidly in ...
Abstract Ghanaians have been concerned about the pollution of the surrounding waters of the country since the start of offshore exploration activities (GNA, 2013). Fishermen have complained about the effects on availability of fish, while coastal dwellers have attributed every strange discoloration ...
Abstract Shell Gabon – a subsidiary of Royal Dutch Shell Plc – has been operating in Gabon since 1960. Since this time Shell's exploration has taken place across a large area of the costal south-west of Gabon, resulting in major discoveries at Gamba (the largest oil field in Gabon at the time) and ...
Abstract In June 2013, the European Commission (EC) published the EU Directive 2013/30/EU on Safety of Offshore Oil and Gas Operations (hereafter referred to as the EU Offshore Safety Directive). The objective of the EU Offshore Safety Directive is to reduce as far as possible the occurrence of major ...
Abstract 1.3 billion people worldwide do not have access to electricity. The vast majority of these people live in rural areas. Because energy is vital and drives progress, it must be available to everyone (Sustainable Development Goal 7). It is one of the Oil and Gas companies' objectives to address ...
Abstract This paper presents how an Oil and Gas Company (Total) has adapted their environmental reporting to implement their commitment to the UNEP CCAC OGMP (OGMP). The Company joined the OGMP, which focuses on measurement and control of methane emissions from the Oil & Gas industry, in November ...
In recent years there has been a dramatic shift in the sources of capital available for the acquisition, development and production of oil and gas assets. New entrants include Private Equity firms, Infrastructure Funds, and other ‘non-traditional buyers’ to the sector. The consequences of new sources ...
Understanding the oil price changes through the demand and supply dynamics is a challenging problem. Traditional models based on stochastic process and aggregated supply and demand have been successful in explaining the price trends in short periods of time where there is no big changes in either supply ...
Abstract Using hydrofluoric (HF) acid for the removal of clays and silica minerals impairing permeability in sandstone formations requires fluids free of sodium or potassium ions. High temperatures (> 300°F) further limit HF acid use and its effectiveness because of potentially damaging effects ...
Abstract Stimulating offshore sandstone formations with depleted reservoir pressure is a challenge. The conventional practices for sandstone acidizing are to pump pre- and post-flush hydrochloric acid to minimize precipitates from the main hydrofluoric acid reacting with the carbonates, and to flow ...
In many deepwater plays around the world, salt formations overlie prolific reservoirs containing billions of barrels of oil. Drilling into these reservoirs requires the successful penetration of the challenging salt layers. Based on experiences in key deepwater basins, this paper reviews the fluids ...