公开(公告)号：US6427774B2

公开(公告)日：2002-08-06

申请号：US75522801

申请日：2001-01-05

Applicant: CONOCO INC

Inventor： THOMAS SALLY A ,  GILBERT WILLIAM W ,  HUFFMAN ALAN ROYCE

IPC: E21B28/00 ,  E21B43/00 ,  E21B43/25

CPC classification number: E21B43/003 ,  E21B28/00

Abstract: Pulsed power sources are installed in one or more wells in the reservoir interval. The pulse sources include (1) an electrohydraulic generator that produces an intense and short lived electromagnetic pulse that travels at the speed of light through the reservoir, and an acoustic pulse from the plasma vaporization of water placed around the source that propagates through the reservoir at the speed of sound in the reservoir and (2) an electromagnetic generator that produces only an intense and short lived electromagnetic pulse that travels at the speed of light through the reservoir. The combination of electrohydraulic and electromagnetic generators in the reservoir causes both the acoustic vibration and electromagnetically-induced high-frequency vibrations occur over an area of the reservoir where stimulation is desired. Single generators and various configurations of multiple electrohydraulic and electromagnetic generators stimulate a volume of reservoir and mobilize crude oil so that it begins moving toward a producing well. The method can be performed in a producing well or wells, an injector well or wells, or special wells drilled for the placement of the pulsed power EOR devices. The method can be applied with other EOR methods such as water flooding, CO2 flooding, surfactant flooding, diluent flooding in heavy oil reservoirs. The recovered formation fluids may be separated into various constituents.

Abstract translation: 脉冲电源安装在储层间隔的一个或多个井中。 脉冲源包括（1）电液发生器，其产生以光速通过储存器行进的强烈和短暂的电磁脉冲，以及来自放置在源周围的水的等离子体蒸发的声脉冲，其通过储存器传播 储存器中的声速和（2）仅产生以光速通过储存器行进的强烈和短寿命的电磁脉冲的电磁发生器。 蓄电池中电液压和电磁发电机的组合使得声波振动和电磁感应的高频振动发生在需要刺激的储层区域上。 单个发电机和多个电液压和电磁发电机的各种配置刺激一定量的储层并调动原油，使其开始向生产井移动。 该方法可以在生产井或井，注入井或井中或在钻出用于放置脉冲功率EOR装置的特殊井中进行。 该方法可以应用于其他EOR方法，如水驱，二氧化碳淹没，表面活性剂淹水，重油库中的稀释剂淹水。 回收的地层流体可以分离成各种成分。