1
|
Li J, Zhao G, Sun N, Liang L, Yang N, Dai C. Construction and evaluation of a graphite oxide Nanoparticle-Reinforced polymer flooding system for enhanced oil recovery. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
2
|
Yang H, Zhang H, Zheng W, Zhou B, Zhao H, Li X, Zhang L, Zhu Z, Kang W, Ketova YA, Galkin SV. Effect of hydrophobic group content on the properties of betaine-type binary amphiphilic polymer. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113358] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
3
|
Optimization Design and Analysis of Polymer High Efficiency Mixer in Offshore Oil Field. Processes (Basel) 2020. [DOI: 10.3390/pr8010110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The degree of polymer-water mixing in high-pressure pipelines on offshore oilfields usually influences the polymer solution’s performance. To realize efficient mixing of the polymer mother liquor with dilution water in the high-pressure pipeline, a high-efficiency mixer is designed and optimized. The designed mixer consists of four parts: a T-shaped pipe as the main body, an inlet flow-splitting plate, a stainless-steel flow-guiding tube, and an outlet flow-splitting plate. Mathematical models are built by using computational fluid dynamics (CFD) and the mixing effects are compared by using Fluent. The research results show that compared with conventional T-shaped mixers, the designed high-efficiency mixer has better mixing performance and increases the mixing rate to 80%. To optimize the mixing rate, the length of the stainless-steel tube is increased and the tube is perforated to guide the flow. The result shows that boring holes along straight lines around the tube can achieve good optimization effect and increase the mixing rate to 95%. The designed high-efficiency mixer can effectively improve the dissolving efficiency and solve problems in polymer-water mixing in the high-pressure pipeline.
Collapse
|
4
|
Shi L, Zhu S, Ye Z, Zhang J, Xue X, Zhao W. The seepage flow characteristics of hydrophobically associated polymers with different aggregation behaviours in porous media. ROYAL SOCIETY OPEN SCIENCE 2020; 7:191270. [PMID: 32218954 PMCID: PMC7029935 DOI: 10.1098/rsos.191270] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 12/02/2019] [Indexed: 06/10/2023]
Abstract
The polymer solution for oil displacement is subjected to strong shear action in practical application, and this action will affect its percolation characteristics in porous media. The effects of mechanical shearing on the solution properties and seepage characteristics of modified hydrophobically associated polymers and dendrimers with two different aggregation behaviours were studied. The results showed that mechanical shearing did not affect hydrophobic microzones. Polymers can re-associate to restore part of the network structure, thereby improving shear resistance (dendritic hydrophobically associating polymers > hydrophobically modified partially hydrolysed polyacrylamide). Polymers with 'cluster' aggregation behaviour enhanced solution performance, enabling them to establish higher resistance coefficient (RF) and residual resistance factor (RRF) in porous media but also bringing about injection difficulties. Increasing the injection rate would increase the injection pressure, but the established RF and RRF showed a downward trend. Mechanical shear pretreatment effectively improved the injectability of the polymer. To achieve polymer injection and flow control, pre-shearing polymer solution and low-speed injection can be used in field applications.
Collapse
Affiliation(s)
- Leiting Shi
- State Key Laboratory of Oil and Gas Reservoir and Exploitation Engineering, Southwest Petroleum University, Si Chuan, Chengdu 610500, People's Republic of China
| | - Shijie Zhu
- State Key Laboratory of Oil and Gas Reservoir and Exploitation Engineering, Southwest Petroleum University, Si Chuan, Chengdu 610500, People's Republic of China
| | - Zhongbin Ye
- State Key Laboratory of Oil and Gas Reservoir and Exploitation Engineering, Southwest Petroleum University, Si Chuan, Chengdu 610500, People's Republic of China
| | - Jian Zhang
- State Key Laboratory of Offshore Oil Exploitation, Beijing 100027, People's Republic of China
| | - Xinsheng Xue
- State Key Laboratory of Offshore Oil Exploitation, Beijing 100027, People's Republic of China
| | - Wensen Zhao
- State Key Laboratory of Offshore Oil Exploitation, Beijing 100027, People's Republic of China
| |
Collapse
|
5
|
Sun D, Wang W, Dong K, Jiang M, Zhou D, Li L. Adsorption behavior and shear degradation of ultrahigh‐molecular‐weight hydrolyzed polyacrylamide in a capillary flow. J Appl Polym Sci 2019. [DOI: 10.1002/app.48270] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Daxing Sun
- State Key Laboratory of Robotics and SystemHarbin Institute of Technology 92 West Dazhi Street, Nangang District, Harbin 150001 Heilongjiang People's Republic of China
| | - Wuyi Wang
- State Key Laboratory of Robotics and SystemHarbin Institute of Technology 92 West Dazhi Street, Nangang District, Harbin 150001 Heilongjiang People's Republic of China
| | - Kangxing Dong
- School of Mechanical Science and EngineeringNortheast Petroleum University 199 Fazhan Road, Kaifa District, Daqing 163318 Heilongjiang People's Republic of China
| | - Minzheng Jiang
- School of Mechanical Science and EngineeringNortheast Petroleum University 199 Fazhan Road, Kaifa District, Daqing 163318 Heilongjiang People's Republic of China
| | - Dekai Zhou
- State Key Laboratory of Robotics and SystemHarbin Institute of Technology 92 West Dazhi Street, Nangang District, Harbin 150001 Heilongjiang People's Republic of China
| | - Longqiu Li
- State Key Laboratory of Robotics and SystemHarbin Institute of Technology 92 West Dazhi Street, Nangang District, Harbin 150001 Heilongjiang People's Republic of China
- State Key Laboratory of TribologyTsinghua University 30 Shuangqing Road, Haidian District 100084 Beijing People's Republic of China
| |
Collapse
|
6
|
Kang W, Zhu Z, Yang H, Tian S, Wang P, Zhang X, Lashari ZA. Study on the association behavior of a hydrophobically modified polyacrylamide in aqueous solution based on host-guest inclusion. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.11.063] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
7
|
Zhang C, Zhao L, Bao M, Lu J. Potential of hydrolyzed polyacrylamide biodegradation to final products through regulating its own nitrogen transformation in different dissolved oxygen systems. BIORESOURCE TECHNOLOGY 2018; 256:61-68. [PMID: 29428615 DOI: 10.1016/j.biortech.2018.01.143] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Revised: 01/30/2018] [Accepted: 01/31/2018] [Indexed: 06/08/2023]
Abstract
Potential of hydrolyzed polyacrylamide (HPAM) biodegradation to final products was studied through regulating its own nitrogen transformation. Under the conditions of 2, 3 and 4 mg/L of DO, HPAM removal ratio reached 16.92%, 24.51% and 30.78% and the corresponding removal ratio reached 49.15%, 60.25% and 76.44% after anaerobic biodegradation. NO3--N concentration was 9.43, 14.10 and 17.99 mg/L in aerobic stages and the corresponding concentration was 0.17, 0.07 and 0.008 mg/L after anaerobic biodegradation. Oxygen as electron acceptors stimulated the activities of nitrification bacteria and other functional bacteria, thus further enhanced nitrification and HPAM biodegradation. NO3- (from HPAM oxidation) as electron acceptors stimulated the activities of nitrate-reducing, acetate-producing and methanogenic microorganisms and they could form a synergistic effect on denitrification and methanogenesis. Thermodynamic opportunity window revealed that NOx- could accelerate anaerobic HPAM bioconversion to methane. Aerobic and anaerobic growth-process equations of cells verified that the metabolism on HPAM was feasible.
Collapse
Affiliation(s)
- Congcong Zhang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Lanmei Zhao
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Mutai Bao
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China.
| | - Jinren Lu
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| |
Collapse
|
8
|
Zhang L, Wang J, Zhang Y, Jiang B, Xiao X, Hao L. Rheological behavior of hydrolyzed polyacrylamide solution flowing through a molecular weight adjusting device with porous medium. Chin J Chem Eng 2016. [DOI: 10.1016/j.cjche.2015.12.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
9
|
Pu W, Du D, Liu R, Gu J, Li K, Zhang Y, Liu P. Synthesis and characterization of hyperbranched associative polyacrylamide. RSC Adv 2016. [DOI: 10.1039/c6ra05243f] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
HDPAM was synthesized by water free-radical copolymerization based on functional hyperbranched polyamide-modified ultrafine silica as functional monomer.
Collapse
Affiliation(s)
- Wanfen Pu
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
- Southwest Petroleum University
- Chengdu
- China
- Petroleum Engineering Institute
| | - Daijun Du
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
- Southwest Petroleum University
- Chengdu
- China
- Petroleum Engineering Institute
| | - Rui Liu
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
- Southwest Petroleum University
- Chengdu
- China
- Petroleum Engineering Institute
| | - Jiongyi Gu
- College of Chemistry and Chemical Engineering
- Southwest Petroleum University
- Chengdu
- China
| | - Kewei Li
- School of Geoscience and Technology
- Southwest Petroleum University
- Chengdu
- China
| | | | - Penggang Liu
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
- Southwest Petroleum University
- Chengdu
- China
- Petroleum Engineering Institute
| |
Collapse
|
10
|
Chen HX, Tang HM, Wu XY, Liu YG, Bai JH, Zhao F. Synthesis, Characterization, and Property Evaluation of a Hydrophobically Modified Polyacrylamide as Enhanced Oil Recovery Chemical. J DISPER SCI TECHNOL 2015. [DOI: 10.1080/01932691.2015.1045600] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
11
|
Interaction between Aqueous Solutions of Hydrophobically Associating Polyacrylamide and Dodecyl Dimethyl Betaine. J CHEM-NY 2014. [DOI: 10.1155/2014/932082] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The interaction between hydrophobically associating polyacrylamide (HAPAM) and dodecyl dimethyl betaine (BS-12) is studied through surface tension, interfacial tension (IFT), apparent viscosity, aggregation behavior, and microscopic morphologies. Results show that surface and interface properties of BS-12 are largely affected by HAPAM. BS-12 critical micelle concentrations are increased with the increment of polymer concentrations. Abilities of reduced air-water surface tension and oil-water interfacial tension are dropped. The oil-water interfacial tension to reach minimum time is increased. HAPAM can form network structures in the aqueous solution. Mixed micelles are formed by the interaction between BS-12 micelles and hydrophobic groups of HAPAM in aqueous solution and self-assembly behavior of HAPAM is affected. With the increment of surfactant concentrations, the apparent viscosity, apparent weight average molecular weights (Mw, a), root mean square radius of gyration (〈Rg〉), and hydrodynamic radius of HAPAM increase first and then decline. Moreover, microscopic morphologies of the mixed system are formed from relatively loose network structures to dense network structures and then become looser network structures and the part of network structures fracture.
Collapse
|
12
|
Synthesis and Evaluation of a Water-Soluble Hyperbranched Polymer as Enhanced Oil Recovery Chemical. J CHEM-NY 2013. [DOI: 10.1155/2013/824785] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A novel hyperbranched polymer was synthesized using acrylamide (AM), acrylic acid (AA),N-vinyl-2-pyrrolidone (NVP), and dendrite functional monomer as raw materials by redox initiation system in an aqueous medium. The hyperbranched polymer was characterized by infrared (IR) spectroscopy,1H NMR spectroscopy,13C NMR spectroscopy, elemental analysis, and scanning electron microscope (SEM). The viscosity retention rate of the hyperbranched polymer was 22.89% higher than that of the AM/AA copolymer (HPAM) at 95°C, and the viscosity retention rate was 8.17%, 12.49%, and 13.68% higher than that of HPAM in 18000 mg/L NaCl, 1800 mg/L CaCl2, and 1800 mg/L MgCl2·6H2O brine, respectively. The hyperbranched polymer exhibited higher apparent viscosity (25.2 mPa·s versus 8.1 mPa·s) under 500 s−1shear rate at 80°C. Furthermore, the enhanced oil recovery (EOR) of 1500 mg/L hyperbranched polymer solutions was up to 23.51% by the core flooding test at 80°C.
Collapse
|