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Experimental Investigation of the Effect of Solvent Type and Its Concentration on the Performance of ES-SAGD [PDF]

Methods and Protocols
Steam-assisted gravity drainage (SAGD) is a widely used thermal enhanced oil recovery (EOR) technique in North America, particularly in high-permeability oil sand reservoirs.
Sajjad Esmaeili, Brij Maini, Zain Ul Abidin, Apostolos Kantzas   +3 more
doaj   +2 more sources

Estudio experimental de aplicación de SAGD convencional vs. SAGD con uso de aditivos (CO2 y enzima) para la recuperación de crudo extrapesado del campo Pungarayacu

FIGEMPA, 2020
El campo Pungarayacu contiene la mayor acumulación de petróleo extrapesado, aproximadamente 4,6 billones de barriles de POES, por lo que este hidrocarburo por su caracterización de una viscosidad muy alta no tiende a movilizarse fácilmente por el medio ...
Santiago Cortez-Navas, Christian Lema-Sarabia, José Álvarez-Martínez, Bryan Salazar-Analuisa, Atahualpa Mantilla-Rivadeneira   +4 more
doaj   +3 more sources

Surrogate-Assisted Hybrid Meta-Heuristic Algorithm with an Add-Point Strategy for a Wireless Sensor Network [PDF]

Entropy, 2023
Meta-heuristic algorithms are widely used in complex problems that cannot be solved by traditional computing methods due to their powerful optimization capabilities. However, for high-complexity problems, the fitness function evaluation may take hours or
Jeng-Shyang Pan, Li-Gang Zhang, Shu-Chuan Chu, Chin-Shiuh Shieh, Junzo Watada   +4 more
doaj   +2 more sources

Sepsis-associated gastrointestinal dysfunction: neuroimmune mechanisms, gut–brain axis disruption, and therapeutic potential of vagus nerve–targeted neuromodulation [PDF]

Frontiers in Medicine
Sepsis-associated gastrointestinal dysfunction (SAGD) is a frequent complication in critically ill patients, marked by impaired motility, feeding intolerance, and disruption of the intestinal barrier, and is linked to poor clinical outcomes.
Zhiyang Wu, Zhiyang Wu, Bo Yao, Jian Yu
doaj   +2 more sources

Rich solvent - Steam assisted gravity drainage (RS-SAGD): An option for clean oil sands recovery processes

Cleaner Engineering and Technology, 2022
The impact of steam generation on Steam-Assisted Gravity Drainage (SAGD) process economics and environmental impacts have led to various modifications of SAGD including solvent co-injection with steam.
Vijitha Mohan, Yi Su, Jingyi Wang, Ian D. Gates   +3 more
doaj   +1 more source

Vertical-well-assisted SAGD dilation process in heterogeneous super-heavy oil reservoirs: Numerical simulations

Underground Space, 2021
PetroChina’s Karamay heavy oil reservoirs mostly comprise Jurassic deposits of braided fluvial facies that have a low porosity, extremely high bitumen viscosity, and strong heterogeneities within the reservoir.
Zhi Yang, Xingge Sun, Chihui Luo, Bin Xu, Baohong Yang, Biao Li   +5 more
doaj   +1 more source

Data-driven model for predicting production periods in the SAGD process

Petroleum, 2022
Many studies have analyzed the cumulative production performance in the SAGD (steam assisted gravity drainage) process by data-driven models but a study based on these models for a dynamic analysis of a SAGD production period is still rare.
Ziteng Huang, Min Yang, Bo Yang, Wei Liu, Zhangxin Chen   +4 more
doaj   +1 more source

Scaled physical experiments on drainage mechanisms of solvent-expanded SAGD in super-heavy oil reservoirs

Petroleum Exploration and Development, 2020
In view of high oil viscosity at high temperatures, slow steam chamber expansion rate, low oil rate, and low oil/steam ratio of domestic super heavy oil blocks developed with dual-horizontal well steam assisted gravity drainage (SAGD), the solvent-aided ...
Yongbin WU, Xueqi LIU, Xuan DU, Xiaoyi ZHOU, Li WANG, Jun LI, Yanhong LI, Xiuluan LI, Yang LI   +8 more
doaj   +1 more source

Application of Temperature Fall-Off Interpretation Method in Superheavy Oil or Oil Sand SAGD Process

Geofluids, 2022
SAGD technology has been successfully and widely applied in the development of superheavy oil and oil sand projects. Before normal SAGD process, some preheating ways are often needed to realize interwell hydraulic connection, and this means that ...
Guangyue Liang, Qian Xie, Shangqi Liu
doaj   +1 more source

Simulation and Production Optimization on Enhanced Oil Recovery during the Middle and Late Period for SAGD Development in Ultraheavy Oil Reservoirs with Interlayers

Geofluids, 2022
Previous studies on the technique for using the remaining oil are incomplete and inaccurate according to the position of the interlayer of the Steam-Assisted Gravity Drainage (SAGD) technique, and comparative studies of infilled horizontal wells are ...
Xiaokun Zhang, You Zhou, Xuan Du, Pengcheng Liu   +3 more
doaj   +1 more source