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首页> 外文会议>SPE 7th Latin American and Caribbean petroleum engineering conference >Maximization of a Field Characterization Using 3D Seismic: Case Study, C-2 Reservoir, Block VIII, Occidental Basin, Lake Maracaibo, Venezuela
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Maximization of a Field Characterization Using 3D Seismic: Case Study, C-2 Reservoir, Block VIII, Occidental Basin, Lake Maracaibo, Venezuela

机译：使用3D地震最大化地场表征：案例研究，C-2储层，西方盆地，委内瑞拉马拉开波湖，西方盆地

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In this work a methodology is developed in which is appliedrnthe advances of applications of seismic 3D (Variance Cube,rnSeismic Attributes, Three Dimensional Visualization,rnincorporating Well/Seismic depth cross sections, and others)rnin the evaluation of the field, integrating it with the disciplinesrnof the geosciences to obtain a static model of the producingrnreservoir. This study is of great help in the reevaluation andrninterpretation of areas currently producing and also givesrnbetter definition and characterization of remaining prospectivernreservoir areas.rnThe study area is from the middle portion of LakernMaracaibo, Western Basin of Venezuela, more specifically inrnthe Seismic 3D cube of Block VIII. The dataset cube embracesrnan area of 265 Km2; comprised by approximately 700 Inlinesrnand 1400 Crosslines. Later in the project the study was furtherrndetailed in a smaller cube of 112 Km2 in order to study the C-2rnreservoir of Block VIII. In total there were 152 wells loadedrnin the database.rnWithin the regional stratigraphic column, there wererninterpreted four (04) Seismic reflectors range from thernCretaceous period into the Miocene, and these reflectors showrnstrong acoustic impedance and are of great areal extension,rnwhich are: Socuy member of the Creatceous Colon Formation,rnGuasare Formation(Paleocene), Top of EocenernUncomformity and the Rosa Formation (Miocene).rnSubsequently the C-2 and C-3 Sands of the Eocene Misoarnformation were interpreted in VIII Block.rnThe objective is to study the C-2 Sand of Block VIII whichrncontains 190.7 MMBLs POES (original oil in place),rnremaining oil in place of 11.7 MMBLs, and accumulatedrnproduction of 33.4 MMBLs with an oil retrieval factor ofrn23.65 % and oil of gravity of 27.5° API. This sand isrnsegregated into six (6) separate reservoirs in this block.rnThe application of this methodology helped in findingrnnew develoment prospects and increased the net recoverablernbarrells in the area of study.
机译：在这项工作中，开发了一种方法，该方法将地震3D的应用进展（方差立方体，地震属性，三维可视化，合并井/地震深度横截面等）应用于现场评估，并将其与地球科学学科获得生产油藏的静态模型。这项研究对重新评估和解释目前正在生产的地区有很大帮助，并且也为剩余的潜在储层地区提供了更好的定义和特征。研究区域来自委内瑞拉西部盆地马拉开波湖的中部，更确切地说是位于VIII区块的地震3D立方体中。数据集立方体包含265 Km2的面积。由大约700条Inlinesrn和1400条Crosslines组成。在该项目的后期，为了研究VIII区块的C-2rn储层，在一个较小的112 Km2的立方体中进一步进行了详细的研究。数据库中总共加载了152口井。在区域地层列中，解释了从白垩纪到中新世的四（04）个地震反射器，这些反射器显示出很强的声阻抗并且具有很大的面扩展性，它们是：Socuy member结肠的成因，古萨雷斯组（古新世），始新统不整合层顶部和罗莎组（中新世）.rn随后在VIII区块解释了始新世杂构型的C-2和C-3砂岩.rn目的是研究C -2区块VIII的沙子，含190.7 MMBLs POES（原始油），剩余油代替11.7 MMBLs，累计生产33.4 MMBLs，回油系数为rn23.65％，重力油为27.5°API。在该区块中，这些沙子被隔离成六（6）个单独的储层。该方法的应用有助于发现新的开发前景，并增加了研究区域的可采净净值。

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