公开(公告)号：US20210215030A1

公开(公告)日：2021-07-15

申请号：US17053700

申请日：2019-05-10

Applicant: BP EXPLORATION OPERATING COMPANY LIMITED

Inventor： Stuart William DAY ,  Christopher Kylie MAIR

IPC: E21B43/38 ,  E21B43/20

Abstract: A method of dynamically allocating a total amount of produced water (PW) from a reservoir during enhanced oil recovery (EOR) via a low salinity or softened water EOR flood by receiving measurement data; receiving reservoir configuration information comprising: an EOR injection rate associated with one or more EOR injection zones, a disposal zone injection rate associated with one or more disposal injection zones, and a non-reinjection disposal rate associated with one or more non-reinjection disposal routes; determining a blending rate comprising at least a portion of the PW production rate and at least a portion of the low salinity or softened water injection rate to provide a blended injection fluid; blending at least a portion of the PW with at least a portion of the low salinity or softened water at the blending rate; and dynamically allocating the PW production rate among injection and/or non-reinjection routes.

公开(公告)号：US20230331592A1

公开(公告)日：2023-10-19

申请号：US17768444

申请日：2020-10-16

Applicant: BP EXPLORATION OPERATING COMPANY LIMITED

Inventor： John William COUVES ,  Stuart William DAY ,  Chris GIBSON ,  Bilal RASHID ,  John Dale WILLIAMS

IPC: C02F1/44 ,  C09K8/58

CPC classification number: C02F1/441 ,  C09K8/58 ,  C02F2103/08

Abstract: An integrated system comprising a desalination plant comprising a reverse osmosis (RO) array configured to produce an RO permeate blending stream, a blending system comprising a flow line for a fines stabilizing additive blending stream and configured to blend the RO permeate blending stream with the fines stabilizing additive blending stream to produce a blended low salinity water stream having a salinity of less than or equal to 5,000, 4,000, 3,000, 2,000, 1,000, 500, 400, or 300 ppm and a molar ratio of divalent cations to monovalent cations of greater than about 0.2, 0.3, or 0.4, a control unit configured to control operation of the blending system, and an injection system for one or more injection wells, wherein the one or more injection wells penetrate an oil-bearing layer of a reservoir. A method is also provided.