公开(公告)号：US11931708B2

公开(公告)日：2024-03-19

申请号：US17264539

申请日：2020-04-17

Applicant: China University of Petroleum (East China)

Inventor： Chao Zhang ,  Zhaomin Li ,  Songyan Li ,  Yong Wang ,  Guangzhong Lv ,  Shouya Wu ,  Linghui Xi ,  Meijia Wang

IPC: C09K8/594 ,  B01F23/41 ,  B01F31/80 ,  B01F33/71 ,  B01F33/81 ,  B01F35/71 ,  B01F23/40 ,  B01F33/45 ,  B01F101/49 ,  C09K8/584

CPC classification number: B01F33/71 ,  B01F23/41 ,  B01F31/83 ,  B01F33/813 ,  B01F35/712 ,  B01F35/7179 ,  B01F23/4143 ,  B01F23/4146 ,  B01F23/481 ,  B01F33/45 ,  B01F2101/49 ,  C09K8/584 ,  C09K8/594 ,  C09K2208/10

Abstract: Provided is a carbon dioxide fluidity control device comprising, a sample preparation tank, a high-pressure stirring unit, a reciprocating plunger pump and a booster pump, wherein the stirring unit comprises one or more high-pressure stirring tanks, each provided with an atomizing spray probe and a piston, wherein a discharge port of the sample preparation tank is connected to the atomizing spray probe via a plunger pump, which is connected to the piston to push the piston to reciprocate; the booster pump is connected to the high-pressure stirring tanks to provide supercritical carbon dioxide to the high-pressure stirring tank; and a discharge port of the high-pressure stirring tanks is connected to an oilfield well group. Provided is a carbon dioxide fluidity control method using the device, comprising mixing surfactants and nanoparticles with heated carbon dioxide, and injecting a microemulsion of supercritical carbon dioxide and nano-silicon dioxide into an oilfield well group.

公开(公告)号：US12221874B2

公开(公告)日：2025-02-11

申请号：US17997106

申请日：2022-03-17

Applicant: CHINA UNIVERSITY OF PETROLEUM ,  CHINA SHI DA EDUCATION DEVELOPMENT CO., LTD.

Inventor： Binglin Li ,  Yuliang Su ,  Binfei Li ,  Chao Zhang ,  Shouya Wu ,  Dongxia Li ,  Wendong Wang ,  Lei Li ,  Yongmao Hao

IPC: E21B43/27 ,  B01D53/60 ,  B01D53/78 ,  E21B41/00

Abstract: The last sentence of the abstract has been deleted because it refers to purported merits of the invention. The abstract should not refer to purported merits or speculative applications of the invention and should not compare the invention with the prior art, therefore the abstract has been amended to delete the last sentence by Examiner's amendment.

公开(公告)号：US11208872B2

公开(公告)日：2021-12-28

申请号：US16331929

申请日：2018-08-03

Applicant: CHINA UNIVERSITY OF PETROLEUM

Inventor： Chao Zhang ,  Zhaomin Li ,  Jianlin Liu ,  Dongya Zhao ,  Teng Lu ,  Shouya Wu ,  Longjiang Guo

IPC: E21B43/16 ,  E21B43/40 ,  E21B41/00

Abstract: A CCUS system for exploiting a thickened oil reservoir based on an optimal flue gas CO2 enrichment ratio. The CCUS system comprises a flue gas CO2 enrichment unit, a flue gas injection unit, a thickened oil thermal production well group unit and a produced gas recovery unit; the fuel gas CO2 enrichment unit comprises an air separating enrichment unit and a boiler injection gas premixed tank; the air separating enrichment unit comprises an air separating primary device used for separating air into oxygen and nitrogen preliminarily, and an air separating secondary device used for further enriching a part of the oxygen which is subjected to the preliminary separation; and the boiler injection gas premixed tank is used for mixing the preliminarily separated nitrogen, the preliminarily separated part of the oxygen and/or the further enriched oxygen.