公开(公告)号：US10132145B2

公开(公告)日：2018-11-20

申请号：US14428213

申请日：2013-08-22

申请人： BL TECHNOLOGIES, INC.

发明人： Jiyang Xia ,  Wenqing Peng ,  Hai Yang ,  Chunjie Liu ,  Chang Wei ,  Wei Cai ,  Yiwen Sun

IPC分类号： E21B43/24 ,  E21B43/34 ,  C02F9/00 ,  B01D9/00 ,  B01D11/02 ,  E21B43/40 ,  C02F1/04 ,  C02F1/26 ,  C02F1/42 ,  C02F1/52 ,  C02F101/32 ,  C02F103/10

摘要： Produced water, for example from a steam assisted gravity drainage (SAGD) or cyclic steam stimulation (CSS) heavy oil recovery operation, is treated to recover water that is re-used to create steam. The produced water is treated in one or more thermal treatment devices such as an evaporator and a crystallizer. The thermal treatment produces a slurry comprising dispersed or dissolved salts and organic compounds. A water-miscible solvent for one or more of the organic compounds, for example methanol, is added to the slurry. The solids precipitate and are separated from the slurry. The solvent may be recovered for re-use in treating more slurry.

公开(公告)号：US10131561B2

公开(公告)日：2018-11-20

申请号：US14657492

申请日：2013-08-15

申请人： BL TECHNOLOGIES, INC.

发明人： Jiyang Xia ,  Hai Yang ,  Wenqing Peng ,  Yiwen Sun ,  Chunjie Liu

IPC分类号： C02F1/04 ,  C02F1/40 ,  C02F1/52 ,  C02F1/72 ,  C02F9/00 ,  E21B43/24 ,  E21B43/34 ,  C02F101/32 ,  C02F103/10

摘要： Water, for example produced water from a steam assisted gravity drainage (SAGD) or cyclic steam stimulation (CSS) heavy oil recovery operation, is treated, for example to recover water re-use in creating steam. The produced water is concentrated, for example in one or more thermal treatment devices such as an evaporator and a crystallizer. A solvent and a compound or solution comprising multivalent cations is added to the concentrate. Solids precipitate and are separated from the concentrate. The solvent may be recovered for re-use in treating more concentrate.