Quantification of heat and fluid flow through time by 3D modelling: The example of the Jeanne d'Arc basin, offshore eastern Canada

通过 3D 建模量化热量和流体随时间的流动：以加拿大东部近海圣女贞德盆地为例

• 批准号: 47898809
• 负责人: Professor Dr. Ralf Littke
• 金额: --
• 依托单位: Lehrstuhl für Organische Biogeochemie in Geo-Systemen (OBG)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2007
• 资助国家: 德国
• 起止时间: 2006-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/47898809?language=en
• 关键词: Quantification; heat; fluid; flow; through

The Jeanne d'Arc Basin (JdA) formed as a failed rift as part of the two-stage Atlantic rifting that started in the Early Jurassic. It formed a V-shaped basin, deepening and opening to the north, that was filled in with sediments to a depth of over 22 km. Evaporites deposited during the first rifting episode, limestones and fine elastics during a quiet intermediate period, and coarse elastics during the second episode. The Terra Nova Field is one area of the Jeanne d'Arc Basin where faulting and folding formed hydrocarbon traps. This field is complicated by the formation of compartments in the reservoir through faulting, some of which have overpressure, and most do not. This shows that at least some of the compartments are not in communication. The entire basin is charged by only one source rock (Egret Member) and is well explored and described trough seismic, well and logging data as well as trough a huge set of available geochemistry data. This makes the area very unique to test and quantify fundamental geoprocesses such as generation, migration and accumulation of hydrocarbons within a confined basin. The analytical work is based on numerical basin simulation taking different tools into account (e.g. log interpretation, geochemical as well as petrological analysis and data interpretation, crustal stretching models, overpressure models).

Jeanne d‘Arc盆地(JDA)是一个失败的裂谷，是始于侏罗纪早期的两阶段大西洋裂谷的一部分。它形成了一个V形盆地，向北加深和开放，被超过22公里深的沉积物填满。第一期裂谷期沉积的是蒸发岩，第二期裂谷期沉积的是石灰岩和细碎屑岩，第二幕是粗碎屑岩。Terra Nova油田是Jeanne d‘Arc盆地中断裂和褶皱形成油气圈闭的地区之一。通过断层作用在储层中形成的隔层使该油田变得复杂，其中一些具有超压，而大多数没有。这表明至少有一些隔间没有通信。整个盆地仅由一种源岩(白鹭段)充填，并通过地震、测井和测井数据以及大量可用地球化学数据进行了很好的勘探和描述。这使得该地区在测试和量化基本地质过程方面非常独特，例如在受限盆地内碳氢化合物的生成、迁移和积累。分析工作以数值盆地模拟为基础，考虑了不同的工具(如测井解释、地球化学和岩石学分析和数据解释、地壳拉伸模型、超压模型)。