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Li X, Zhang X, Wang L, Wen F, Chen Y, Lv Q, Ma H, Chen A, Wang R, Chen L, Wang Q, Dong D, Xu S, Niu Q. Self-Assembled Viscoelastic Surfactant Micelles with pH-Responsive Behavior: A New Fracturing-Displacement Integrated Working Fluid for Unconventional Reservoirs. ACS OMEGA 2024; 9:22691-22702. [PMID: 38826515 PMCID: PMC11137712 DOI: 10.1021/acsomega.4c00459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 04/17/2024] [Accepted: 04/22/2024] [Indexed: 06/04/2024]
Abstract
The integrated fracturing and oil recovery strategy is a new paradigm for achieving sustainable and cost-effective development of unconventional reservoirs. However, a single type of working fluid cannot simultaneously meet the different needs of fracturing and oil displacement processes. Here, we develop a pH-responsive fracturing-displacement integrated working fluid based on the self-assembled micelles of N,N-dimethyl oleoamine propylamine (DOAPA) and succinic acid (SA). By adjusting the pH of the working fluid, the DOAPA and SA molecules can be switched repeatedly between highly viscoelastic wormlike micelles and aqueous low-viscosity spherical micelles. The zero-shear viscosity of the working fluid enriched the wormlike micelles can reach more than 93,100 mPa·s, showing excellent viscoelasticity and sand-carrying properties. The working fluid is easy to gel-break when it encounters oil, generating a low-viscosity liquid without residue. In addition, the system has strong interfacial activity, which can greatly reduce the oil-water interfacial tension to form emulsions and can achieve reversible demulsification and re-emulsification by adjusting pH. Through the designed and fabricated microfluidic chip, it can be visualized that under the synergistic effect of viscoelasticity and interfacial activity DOAPA/SA can effectively expand the swept volume of tight fractured formations, promote pore wetting reversal and crude oil emulsification, and improve the displacement efficiency. The DOAPA/SA meets the design requirements of the fracturing-displacement integrated working fluids and provides a novel method and idea for constructing the integrated working fluids suitable for fracturing and displacement in unconventional reservoirs.
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Affiliation(s)
- Xiaochen Li
- CNPC
Bohai Drilling Engineering Company Limited, Tianjin 300280, People’s Republic of China
- Tianjin
Enterprise Key Laboratory of Complex Conditions Drilling Fluid, Tianjin 300280, People’s Republic of China
- Unconventional
Petroleum Research Institute, China University
of Petroleum (Beijing), Beijing 102249, People’s
Republic of China
| | - Xianbin Zhang
- CNPC
Bohai Drilling Engineering Company Limited, Tianjin 300280, People’s Republic of China
- Tianjin
Enterprise Key Laboratory of Complex Conditions Drilling Fluid, Tianjin 300280, People’s Republic of China
| | - Leilei Wang
- CNPC
Bohai Drilling Engineering Company Limited, Tianjin 300280, People’s Republic of China
- Tianjin
Enterprise Key Laboratory of Complex Conditions Drilling Fluid, Tianjin 300280, People’s Republic of China
| | - Fei Wen
- CNPC
Bohai Drilling Engineering Company Limited, Tianjin 300280, People’s Republic of China
- Tianjin
Enterprise Key Laboratory of Complex Conditions Drilling Fluid, Tianjin 300280, People’s Republic of China
| | - Yurong Chen
- CNPC
Bohai Drilling Engineering Company Limited, Tianjin 300280, People’s Republic of China
- Unconventional
Petroleum Research Institute, China University
of Petroleum (Beijing), Beijing 102249, People’s
Republic of China
| | - Qichao Lv
- Unconventional
Petroleum Research Institute, China University
of Petroleum (Beijing), Beijing 102249, People’s
Republic of China
| | - Hong Ma
- CNPC
Bohai Drilling Engineering Company Limited, Tianjin 300280, People’s Republic of China
- Tianjin
Enterprise Key Laboratory of Complex Conditions Drilling Fluid, Tianjin 300280, People’s Republic of China
| | - Anliang Chen
- CNPC
Bohai Drilling Engineering Company Limited, Tianjin 300280, People’s Republic of China
- Tianjin
Enterprise Key Laboratory of Complex Conditions Drilling Fluid, Tianjin 300280, People’s Republic of China
| | - Ruxue Wang
- CNPC
Bohai Drilling Engineering Company Limited, Tianjin 300280, People’s Republic of China
- Tianjin
Enterprise Key Laboratory of Complex Conditions Drilling Fluid, Tianjin 300280, People’s Republic of China
| | - Leixu Chen
- CNPC
Bohai Drilling Engineering Company Limited, Tianjin 300280, People’s Republic of China
- Tianjin
Enterprise Key Laboratory of Complex Conditions Drilling Fluid, Tianjin 300280, People’s Republic of China
| | - Qian Wang
- CNPC
Bohai Drilling Engineering Company Limited, Tianjin 300280, People’s Republic of China
- Tianjin
Enterprise Key Laboratory of Complex Conditions Drilling Fluid, Tianjin 300280, People’s Republic of China
| | - Dianbin Dong
- CNPC
Bohai Drilling Engineering Company Limited, Tianjin 300280, People’s Republic of China
- Tianjin
Enterprise Key Laboratory of Complex Conditions Drilling Fluid, Tianjin 300280, People’s Republic of China
| | - Shaoying Xu
- CNPC
Bohai Drilling Engineering Company Limited, Tianjin 300280, People’s Republic of China
- Tianjin
Enterprise Key Laboratory of Complex Conditions Drilling Fluid, Tianjin 300280, People’s Republic of China
| | - Qiqi Niu
- Unconventional
Petroleum Research Institute, China University
of Petroleum (Beijing), Beijing 102249, People’s
Republic of China
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Othman A, Murtaza M, Aljawad MS, Kamal MS, Mahmoud M, Kalgaonkar RA. Effect of Seawater Ions on Polymer Hydration in the Presence of a Chelating Agent: Application to Hydraulic Fracturing. ACS OMEGA 2023; 8:969-975. [PMID: 36643534 PMCID: PMC9835794 DOI: 10.1021/acsomega.2c06356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
Seawater (SW) and produced water (PW) could replace freshwater in hydraulic fracturing operations, but their high salinity impacts the fluid stability and results in formation damage. Few researchers investigated SW and PW individual ions' impact on polymer hydration and rheology. This research examines the rheology of carboxy methyl hydroxy propyl guar (CMHPG) polymer hydrated in salt ions in the presence of a chelating agent. The effect of various molar concentrations of SW and PW salt ions on the rheology of CMHPG polymer solution was examined. The tested salt ions included calcium chloride, magnesium chloride, sodium chloride, and sodium sulfate, which were compared to SW and deionized water (DI) solutions. The solutions were tested at 70 °C temperature, 500 psi pressure, and 100 1/s shear rate. A GLDA chelating agent was utilized at different concentrations to examine their impact on stabilizing the solution viscosity. We found that adding the GLDA to magnesium and calcium chloride solutions increased the viscosity. Results showed that sulfate ions control the rheology of seawater due to their similar rheological response to the addition of GLDA. The results help to understand how the SW and PW ions impact the rheology of fracturing fluids.
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Affiliation(s)
- Amro Othman
- Department
of Petroleum Engineering, King Fahd University
of Petroleum & Minerals, 31261 Dhahran, Saudi Arabia
| | - Mobeen Murtaza
- Center
for Integrative Petroleum Research, King
Fahd University of Petroleum & Minerals, 31261 Dhahran, Saudi Arabia
| | - Murtada Saleh Aljawad
- Department
of Petroleum Engineering, King Fahd University
of Petroleum & Minerals, 31261 Dhahran, Saudi Arabia
- Center
for Integrative Petroleum Research, King
Fahd University of Petroleum & Minerals, 31261 Dhahran, Saudi Arabia
| | - Muhammad Shahzad Kamal
- Center
for Integrative Petroleum Research, King
Fahd University of Petroleum & Minerals, 31261 Dhahran, Saudi Arabia
| | - Mohamed Mahmoud
- Department
of Petroleum Engineering, King Fahd University
of Petroleum & Minerals, 31261 Dhahran, Saudi Arabia
- Center
for Integrative Petroleum Research, King
Fahd University of Petroleum & Minerals, 31261 Dhahran, Saudi Arabia
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Shi S, Sun J, Lv K, Wen Q, Bai Y, Wang J, Jin J, Liu J, Huang X, Li J. Preparation and evaluation of acryloyl morpholine modified emulsion fracturing fluid thickener with high temperature resistance and salt resistance. J Appl Polym Sci 2022. [DOI: 10.1002/app.53338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Shenglong Shi
- Department of Petroleum Engineering China University of Petroleum (East China) Qingdao China
| | - Jinsheng Sun
- Department of Petroleum Engineering China University of Petroleum (East China) Qingdao China
| | - Kaihe Lv
- Department of Petroleum Engineering China University of Petroleum (East China) Qingdao China
| | - Qingzhi Wen
- College of Engineering and Beijing Innovation Center for Engineering Science and Advanced Technology Peking University Beijing China
| | - Yingrui Bai
- Department of Petroleum Engineering China University of Petroleum (East China) Qingdao China
| | - Jintang Wang
- Department of Petroleum Engineering China University of Petroleum (East China) Qingdao China
| | - Jiafeng Jin
- Department of Petroleum Engineering China University of Petroleum (East China) Qingdao China
| | - Jingping Liu
- Department of Petroleum Engineering China University of Petroleum (East China) Qingdao China
| | - Xianbin Huang
- Department of Petroleum Engineering China University of Petroleum (East China) Qingdao China
| | - Jian Li
- Department of Petroleum Engineering China University of Petroleum (East China) Qingdao China
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