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

Jeanne d'Arc盆地（JdA）是一个失败的裂谷，是早侏罗纪开始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，被沉积物填充到超过22公里的深度。蒸发岩沉积在第一裂谷幕，石灰岩和细弹性在一个安静的中间时期，粗弹性在第二幕。Terra Nova油田是Jeanne d'Arc盆地的一个区域，断层和褶皱形成了油气圈闭。该油气田因断层作用在储层中形成的隔室而变得复杂，其中一些隔室具有超压，而大多数隔室没有。这表明至少有一些隔间没有连通。整个盆地仅由一个烃源岩（白鹭段）充注，通过地震、钻井和测井数据以及大量可用的地球化学数据进行了充分的勘探和描述。这使得该地区在测试和量化封闭盆地内碳氢化合物的生成、迁移和聚集等基本地质过程方面非常独特。分析工作以数值盆地模拟为基础，同时考虑到不同的工具（例如，测井解释、地球化学以及岩石学分析和数据解释、地壳拉伸模型、超压模型）。

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).