Selective Polymer Treatments Improve Oil Recovery in Five Mature Southern Oklahoma Waterfloods

Portwood, J.T.; Lackey, Scott W.; Abel, Scott

doi:10.2523/129796-ms

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“…This flow pattern makes the injected water unable to sweep substantial oil located in low-permeability zones, but it is produced directly at producer, the so-called conformance problem. According to Portwood et al [3], parts of the Healdton Field in Carter County, Ok, USA, showed high watercut because of complex permeability distributions. Excessive water production could make the life of the well short because of high water disposal cost.…”

Section: Introductionmentioning

confidence: 99%

Performance of Gel Treatments in Reservoirs with Multiscale Heterogeneity

Lee

2013

Journal of Chemistry

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Spatially correlated permeability fields are usually generated by single-scale correlation. To overcome the limitations of single-scale permeability fields in describing real situation, permeability fields should be generated by multiscale correlation. Multiscale heterogeneity results in the existence of various permeability magnitudes and spatial distributions of permeability. Gel treatment is applied on the heterogeneous permeability fields realized by multiscale correlation. Performance of gel treatment has been shown to depend on permeability distribution and permeability values, which are determined by correlation length, variance, and number of scales. Generally, spatially-correlated permeability fields generated with longer correlation length, higher variance, and multiscale lead to higher improvement in the performance of gel treatment. In addition, longer application of preflush as waterflooding results in larger reduction of water-oil ratio when the gel treatment is applied to heterogeneous permeability fields after preflush.

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Section: Introductionmentioning

confidence: 99%

Performance of Gel Treatments in Reservoirs with Multiscale Heterogeneity

Lee

2013

Journal of Chemistry

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show abstract

Selective Polymer Treatments Improve Oil Recovery in Five Mature Southern Oklahoma Waterfloods

Cited by 1 publication

References 0 publications

Performance of Gel Treatments in Reservoirs with Multiscale Heterogeneity

Performance of Gel Treatments in Reservoirs with Multiscale Heterogeneity

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