Hi All, I am currently working on project of injecting a slug of fresh water followed by high salinity water to improve oil recovery using Eclipse 100. I want to know how much of fresh water and high salinity water are injected. So, are there any Keywords in Eclipse to tell these two information? if not, what I have to do to know that?
Dear Barham Md.,
The ECLIPSE industry-reference simulator offers the industry’s most complete and robust set of numerical solutions for fast and accurate prediction of dynamic behavior for all types of reservoirs and development schemes. Using at over 800 sites in 70 countries, the ECLIPSE simulator draws upon an unrivalled level of reservoir engineering expertise across the entire industry.Disclosed is a petroleum recovery method useful for recovering petroleum from subterranean formations containing water having high salinity and/or divalent ion concentration, employing an aqueous surfactant-containing fluid which is designed to effect low surface tension displacement of petroleum in the formation in the presence of high salinity water. The improvement comprises injecting the total desired volume of surfactant in the form of a plurality of relatively small slugs of surfactant fluid, and alternatingly injecting similarly small pore volume slugs of fluid comprising fresh water, E.G. Salinities less than 10,000 parts per million and preferably less than 1000 parts per million total dissolved solids, and having dissolved or dispersed therein an effective amount of a sacrificial agent such as a water soluble lignosulfonate salt. The total pore volume of surfactant containing fluid injected is ordinarily from 0.01 to 1.00 and preferably from 0.20 to 0.50 pore volumes. This total amount of surfactant fluid is injected in from 2 to 15 and preferably from 3 to 6 separate discrete slugs. Each slug of surfactant fluid I followed by injecting a quantity of fresh water containing the sacrificial agent. The volume of each fresh water sacrificial agent slug is ordinarily from 0.5 to 5.0 and preferably 1 to 2 times the volume of the preceding surfactant fluid slug.
Regards,
Prem Baboo
http://www.slideserve.com/marin/introduction-to-eclipse-100
Article Oil recovery method employing alternate slugs of surfactant ...
Dear Baboo
thank you so much for your explanation, but still I didn't get the answer of my question. let me explain my question in a simple way. if I injected fresh water for 3 month then change it to high salinity water and injection continue for 2 years. now my question is how do I know how much fresh water has been injected during the 3 month and for high salinity water as well?
is there any keywords in summary section give these information? or what should I have to do
The answer appears to be quite simple if you know your rate of injection (example: liters per minute/hour/day) and multiply that by the time (minutes/hours/days) it will give you total volume administered.
I think you answer is right in the case if we control our injection by surface flow rate. however, when we control the injection by for example Reservoir volume rate target (RESV) we can not use the method that you mentioned.
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