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    • 76. 发明申请
    • METHOD FOR MEASURING PRESSURE IN AN UNDERGROUND FORMATION
    • 在地下形成中测量压力的方法
    • WO2012073145A1
    • 2012-06-07
    • PCT/IB2011/055185
    • 2011-11-18
    • TOTAL S.A.VENTRE, Pierre
    • VENTRE, Pierre
    • E21B49/00E21B49/10E21B49/08
    • E21B47/06E21B49/008E21B49/087E21B49/10
    • The invention relates to a method for measuring pressure in an underground formation (4) containing a fluid, comprising the following consecutive steps: - establishing fluid communication between a test chamber (8a, 8b, 8c, 8d) arranged in a drilling well and the underground formation, via a flowline; - moving a piston (9a, 9b, 9c, 9d) in the test chamber so as to suction fluid into the test chamber; - ensuring fluid isolation (11a, 11b, 11c, 11d) of the test chamber relative to the flowline; - measuring the pressure (7) in the flowline; and - repeating the preceding steps. The invention also relates to a device for measuring pressure (5) in an underground formation containing a fluid adapted for the implementation of said method.
    • 本发明涉及一种用于测量包含流体的地下地层(4)中的压力的​​方法,包括以下连续步骤: - 在布置在钻井中的测试室(8a,8b,8c,8d)之间建立流体连通, 地下形成,通过流线; - 将活塞(9a,9b,9c,9d)移动到测试室中,以将流体吸入测试室; - 确保测试室相对于流线的流体隔离(11a,11b,11c,11d); - 测量流线中的压力(7); 和 - 重复前述步骤。 本发明还涉及用于测量包含适于实施所述方法的流体的地下地层中的压力(5)的装置。
    • 78. 发明申请
    • AN IMPROVED PROCESS FOR CHARACTERISING THE EVOLUTION OF AN OIL OR GAS RESERVOIR OVER TIME
    • 用于表征油气或气体储存过程的改进过程
    • WO2011161242A1
    • 2011-12-29
    • PCT/EP2011/060625
    • 2011-06-24
    • TOTAL S.A.GRANDI, AndreaCOLES, Darrell Ardon
    • GRANDI, AndreaCOLES, Darrell Ardon
    • G01V1/30
    • G01V1/30G01V1/308
    • Disclosed is a process for characterising the evolution of a reservoir by co- analyzing the changes in the propagation times and seismic amplitudes of seismic reflections. The method comprises the steps of: providing a base survey of the reservoir with a set of seismic traces at a first time; providing a monitor survey of the reservoir, taken at a second time, with a set of seismic traces associated to the same positions as in the base survey; and characterising the evolution of the reservoir by inversion to obtain an estimate of the changes having occurred during the time interval between base and monitor surveys. The inversion is regularized by the imposition of a sparsity constraint, such as Cauchy sparsity, which favours inversion solutions for which most of the solution values are equal to zero, while large values of said inversion solutions are preserved.
    • 公开了通过共同分析地震反射的传播时间和地震振幅的变化来描述储层演化的过程。 该方法包括以下步骤:在第一时间提供具有一组地震迹线的储层的基础测量; 提供对第二次采集的水库的监测调查,其中一组与基础测量相同位置的地震迹线; 并通过反演来表征储层的演化,以获得在基础监测和监测调查之间的时间间隔内发生的变化的估计。 反演是通过施加稀疏约束(例如柯西稀疏度)来规则化的,这有利于大多数解值等于零的反演解,而所述反演解的大值被保留。