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公开(公告)号：US20160298426A1
公开(公告)日：2016-10-13
申请号：US15188083
申请日：2016-06-21
Applicant: BP EXPLORATION OPERATING COMPANY LIMITED
Inventor： James Andrew Brodie , Gary Russell Jerauld
CPC classification number: E21B43/20 , G01N15/08 , G01N2013/003
Abstract: A computer-implemented method for configuring operating conditions for at least one of desalination equipment and fluid injection equipment to be used in a low salinity waterflood on a hydrocarbon-bearing reservoir is provided. The reservoir is penetrable by an injection well and a production well. The method comprises deriving an ion diffusion distance value from: a diffusion coefficient indicative of a rate of diffusion of ions through relatively permeable layers of the reservoir when the low salinity water is present therein; and a residence time value indicative of the time required for the low salinity water to pass from the injection well to the production well through the reservoir; comparing the thickness of the relatively permeable layers to the derived ion diffusion distance value; generating an indication of the effectiveness of performing a low salinity waterflood; and configuring said operating conditions based on the indication of the effectiveness.
Abstract translation: 提供了一种计算机实现的方法，用于为在含烃储层上的低盐度水驱中使用的淡化设备和流体注入设备中的至少一个配置操作条件。 储层可以通过注入井和生产井渗透。 该方法包括从下列方面导出离子扩散距离值：扩散系数，其指示当低盐度水存在于其中时，离子通过储层的相对可渗透层的扩散速率; 以及指示低盐度水从注入井通过储层通过生产井所需时间的停留时间值; 将相对可渗透层的厚度与导出的离子扩散距离值进行比较; 产生执行低盐度水驱的有效性的指示; 以及基于有效性的指示来配置所述操作条件。
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公开(公告)号：US10041339B2
公开(公告)日：2018-08-07
申请号：US14377073
申请日：2013-02-08
Applicant: BP Exploration Operating Company Limited
Inventor： Gary Russell Jerauld , Hourshad Mohammadi
Abstract: Method of recovering oil from a subterranean oil-bearing reservoir by using an injection fluid containing a viscosifying polymer in a low salinity water. The low salinity water has a total dissolved solids (TDS) content of 15,000 ppmv or less, and the ratio of the multivalent cation content of the low salinity water to the multivalent cation content of the connate water of the reservoir is less than 1. The viscosity of the injection fluid is in the range of 3 to 200 cP, and the reservoir is penetrated by one or more injection wells and by one or more production wells. The method includes injecting the injection fluid into at least one of the injection wells in a slug size in the range of 0.4 to 1.5 pore volume (PV).
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公开(公告)号：US09982521B2
公开(公告)日：2018-05-29
申请号：US15188083
申请日：2016-06-21
Applicant: BP EXPLORATION OPERATING COMPANY LIMITED
Inventor： James Andrew Brodie , Gary Russell Jerauld
CPC classification number: E21B43/20 , G01N15/08 , G01N2013/003
Abstract: A computer-implemented method for configuring operating conditions for at least one of desalination equipment and fluid injection equipment to be used in a low salinity waterflood on a hydrocarbon-bearing reservoir is provided. The reservoir is penetrable by an injection well and a production well. The method comprises deriving an ion diffusion distance value from: a diffusion coefficient indicative of a rate of diffusion of ions through relatively permeable layers of the reservoir when the low salinity water is present therein; and a residence time value indicative of the time required for the low salinity water to pass from the injection well to the production well through the reservoir; comparing the thickness of the relatively permeable layers to the derived ion diffusion distance value; generating an indication of the effectiveness of performing a low salinity waterflood; and configuring said operating conditions based on the indication of the effectiveness.
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