Rock physics enhanced strati-structural interpretation of the "Wuzuzo Field", onshore Niger Delta, Nigeria

IF 2.6 Q3 ENERGY & FUELS Upstream Oil and Gas Technology Pub Date : 2021-02-01 DOI:10.1016/j.upstre.2020.100028

A.I. Opara , E.M. Okoro , S.O. Onyekuru , I.O. Njoku , C.P. Onyenegecha , J.E. Asedegbega , A.C. Ekwe , A.E. Okoli , J.C. Ezekiel

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引用次数: 2

Abstract

Rock physics enhanced seismic strati-structural interpretation of the "Wuzozo Field" revealed two genetic units with the reservoir sands interpreted as channel fill deposits belonging to the Low Stand Systems (LST) and Trangressive Systems Tracts (TST) respectively. Estimated effective bulk moduli of the field revealed values between 23.55-36.74GPa for sand bodies while the results of the rock physics modeling revealed that the elastic moduli increases as porosity values decrease. Evaluation of the reservoir properties indicated that the pay zones are high-quality sands owing to their high effective porosities and net-to-gross ratio. In conclusion, the integration of rock physics with seismic stratigraphy has proved to be an invaluable tool for identifying prospective pay zones, especially at deeper subsurface intervals.

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尼日利亚尼日尔三角洲陆上“Wuzuzo油田”岩石物理强化地层构造解释

对“Wuzozo油田”进行了岩石物理强化地震地层构造解释，发现了两个成因单元，其中储层砂被解释为河道充填矿床，分别属于低水位体系域(LST)和海侵体系域(TST)。砂体的有效体积模量在23.55 ~ 36.74 gpa之间，岩石物理模拟结果显示，弹性模量随孔隙度的减小而增大。储层物性评价表明，该产层具有较高的有效孔隙度和净毛比，为优质砂层。总之，岩石物理与地震地层学的结合已被证明是识别潜在产层的宝贵工具，特别是在更深的地下层段。

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Upstream Oil and Gas Technology

CiteScore

5.50

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0.00%

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