Results 21 to 30 of about 4,437,581 (291)

Synthesis of an efficient copolymer of acrylamide and acrylic acid and determination of its swelling behavior

Journal of Petroleum Exploration and Production Technology, 2018
The main purpose of this work is to prepare an efficient series of preformed particle gels (PPGs) and to study their behaviors to control unwanted water in oil fields. To this end, 12 copolymer samples composed of acrylamide and acrylic acid [poly(AAm-co-
Samira Heidari, Feridun Esmaeilzadeh, Dariush Mowla, Sohila Ghasemi   +3 more
doaj   +1 more source

Study on Pulse Characteristic of Produced Crude Composition in CO2 Flooding Pilot Test

Geofluids, 2018
It has been observed in many laboratory tests that the carbon number of the maximum concentration components (CNMCC) of produced oil varies monotonically with CO2 injection volume at the core scale. However, in CO2 flooding pilot test at the field scale,
Pengxiang Diwu, Tongjing Liu, Zhenjiang You, Ganggang Hou, Runwei Qiao, Lekun Zhao   +5 more
doaj   +1 more source

Comparative Analysis of CO2, N2, and Gas Mixture Injection on Asphaltene Deposition Pressure in Reservoir Conditions

Energies, 2018
CO2 and N2 injection is an effective enhanced oil recovery technology in the oilfield especially for low-permeability and extra low-permeability reservoirs. However, these processes can induce an asphaltene deposition during oil production.
Peng Wang, Fenglan Zhao, Jirui Hou, Guoyong Lu, Meng Zhang, Zhixing Wang   +5 more
doaj   +1 more source

Application of in situ CO2 enhanced oil recovery in liquid-rich shale and low-temperature reservoirs [PDF]

, 2023
The injection of CO2 presents significant potential for enhancing oil production while minimizing environmental impact by storing CO2 within the oil reservoir.
Ogbonnaya, Onyekachi
core  

Experimental study of flow friction behavior in coiled tubing

Energy Reports, 2022
Coiled tubing (CT) technology has been widely applied in well cleanouts, drilling plug, and shale oil and gas fracturing. Fluid flow in CT produce a more significant flow friction pressure loss because of the long length and small tubing diameter coiled ...
Shihui Sun, Jiahao Liu, Ruili Sang, Kang Zhao   +3 more
doaj   +1 more source

A New Mathematical Model for Flow and Heat Transfer of Dual-String Steam Injection in SAGD

Geofluids
Uneven steam distribution along horizontal wellbores, particularly the disparity between the heel and toe, poses a significant challenge in steam injection for heavy oil recovery.
Qiuying Du, Lili Cao, Wenfang Song, Mengyun Zhao, Hang Xu, Chuxiao Miao, Qingjun Du   +6 more
doaj   +1 more source

A Pilot Field Study on Channeling Control Using Polymer Gel Prior to Gas Injection in Strong-Heterogeneity, High-Temperature, High-Salinity Reservoirs

Energies
Channeling control remains the most critical challenge in fluid injection for enhanced oil recovery (EOR). Polymer gels are widely applied in channeling control due to their capability to alter the permeability of flow channels. However, high temperature
Weidong Chen, Zhuoyan Zhu, Qingfeng Hou, Yuanyuan Wang, Xiaoling Yi, Weidong Liu   +5 more
doaj   +1 more source

Experimental Investigation of Oil Recovery from Tight Sandstone Oil Reservoirs by Pressure Depletion

Energies, 2018
Oil production by natural energy of the reservoir is usually the first choice for oil reservoir development. Conversely, to effectively develop tight oil reservoir is challenging due to its ultra-low formation permeability.
Wenxiang Chen, Zubo Zhang, Qingjie Liu, Xu Chen, Prince Opoku Appau, Fuyong Wang   +5 more
doaj   +1 more source

Experimental Study on Enhanced Oil Recovery of PPG/ASP Heterogeneous System after Polymer Flooding

Gels, 2023
Following the application of polymer flooding in Daqing Oilfield, the heterogeneity between different layers has intensified, resulting in the formation of more favorable seepage channels and cross-flow of displacement fluids.
Yanfu Pi, Zailai Su, Ruibo Cao, Bo Li, Jinxin Liu, Xinyu Fan, Mingjia Zhao   +6 more
doaj   +1 more source

Automated FRAP microscopy for high‐throughput analysis of protein dynamics in chromatin organization and transcription

FEBS Open Bio, EarlyView.
RoboMic is an automated confocal microscopy pipeline for high‐throughput functional imaging in living cells. Demonstrated with fluorescence recovery after photobleaching (FRAP), it integrates AI‐driven nuclear segmentation, ROI selection, bleaching, and analysis.
Selçuk Yavuz, Bart Geverts, Johan A. Slotman, Andrea Sacchetti, Stefan Prekovic, Martin E. van Royen, Adriaan B. Houtsmuller   +6 more
wiley   +1 more source