EOR target oil and techniques of its estimation

Egbogah, Emmanuel O.

doi:10.1016/0920-4105(94)90024-8

Cited by 21 publications

(8 citation statements)

References 8 publications

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“…Locating the oil to be recovered is a difficult exercise and requires sophisticated techniques as well. Egbogah provided an extensive review of those techniques (Egbogah, 1994). Volumetric reservoir engineering studies and core analysis are the tools to be used for the amount of the remaining oil but not the distribution of it.…”

Section: How Much Oil Is Left and Where Is The Remaining Oil?mentioning

confidence: 99%

Development of mature oil fields — A review

Babadagli

2007

Journal of Petroleum Science and Engineering

162

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Section: How Much Oil Is Left and Where Is The Remaining Oil?mentioning

confidence: 99%

Development of mature oil fields — A review

Babadagli

2007

Journal of Petroleum Science and Engineering

162

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“…Locating the oil to be recovered is a difficult exercise and requires sophisticated techniques as well. Egbogah provided an extensive review of those techniques 3 .…”

Section: How Much Oil Is Left and Where Is The Remaining Oil?mentioning

confidence: 99%

Mature Field Development - A Review

Babadagli

2005

Proceedings of SPE Europec/Eage Annual Conference

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TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractDevelopment of mature oil fields has been, and will increasingly be, an attractive subject.Mature field development practices can be divided into two major groups:(1) well engineering and (2) reservoir engineering. This paper focuses on the reservoir engineering aspects.An extensive review of previously reported reservoir management practices for mature field development is provided. After the definition of mature field and an overview, different aspects of mature field development are outlined. The first issue covered is the estimation of remaining reserves focusing on the determination of the amount and location of the residual oil after primary and secondary recovery using field, log, and core data. After valuing the remaining oil, methods to recover it are classified. They include tertiary recovery, infill drilling, horizontals, optimal waterflooding design for mature fields, optimal well placement and other reservoir management practices. Suggested or implemented field application examples for big fields owned by majors and small fields owned by independents are presented.Special attention is given to tertiary oil recovery. An extensive review and critical analysis of tertiary recovery techniques covering the theoretical, practical, and economical aspects of it are provided. The emphasis is on their applicability in mature field development in terms of effectiveness (incremental recovery) and efficiency (cost and recovery time). Laboratory and field scale applications of different tertiary recovery techniques, i.e., gas (double displacement, WAG, and miscible-immiscible HC, CO 2 , and N 2 ), chemical (dilute surfactant, polymer, and micellar injection), and thermal (air and steam) injection, conducted to develop mature fields are included. Specific examples of big/giant fields, fields producing for decades, and mid to small size fields were selected.Differences in reservoir management strategies for majors, independents, and national oil companies are discussed.

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“…Unfortunately, most of the new reserves discovered today are located in such conditions which are not only technically challenging to develop but also economically nonviable to produce. With the use of conventional production practices like water flooding, the oil industry is leaving a huge fraction of the existing oil reserves as residual oil . Thus, industries are investing in recovery enhancement from matured oil fields by introducing various enhanced oil recovery (EOR) techniques.…”

Section: Introductionmentioning

confidence: 99%

Low Salinity Polymer Flooding: Effect on Polymer Rheology, Injectivity, Retention, and Oil Recovery Efficiency

2020

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Synergism between different enhanced oil recovery (EOR) methods has always been a subject of paramount interest for oil industry as it led to the development of many successful EOR methods in the past. Low salinity water flooding is a recent development in the field of EOR, and polymer flooding is a conventional EOR technique that has been practiced for many decades. In this study, we have investigated the synergistic effects of low salinity water flooding and polymer flooding focusing on the effect of low salinity on polymer rheology, polymer solution injectivity, retention of polymer in the reservoir rock, and oil recovery efficiency of low salinity polymer flooding. The study is comprised of a multidimensional experimental approach including measurements of bulk rheology of polymer solutions prepared with brines of varying salinities, single phase displacement experiments for injectivity analyses, UV–visible and electron dispersive spectroscopy along with scanning electron microscopy for studying retention of polymer on the reservoir rock surface, and finally laboratory flooding experiments to demonstrate the oil recovery efficiency of low salinity polymer flooding synergy. The results obtained from this study show that low salinity water tremendously improves the polymer rheology that could greatly favor the oil recovery efficiency of the overall process. Low salinity water is also found to be a very impressive agent for improving displacement efficacy and the injectivity of a polymer solution. Finally, the results of enhanced oil recovery flooding experiments demonstrated that low salinity polymer flooding could significantly increase the oil recovery efficiency in comparison to either low salinity or conventional polymer flooding alone.

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EOR target oil and techniques of its estimation

Cited by 21 publications

References 8 publications

Development of mature oil fields — A review

Development of mature oil fields — A review

Mature Field Development - A Review

Low Salinity Polymer Flooding: Effect on Polymer Rheology, Injectivity, Retention, and Oil Recovery Efficiency

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