Association of gravity drainage and complications following Whipple: an analysis of the ACS-NSQIP targeted database [PDF]
World Journal of Surgical Oncology, 2021 Background The optimal type of operative drainage following pancreaticoduodenectomy (PD) remains unclear. Our objective is to investigate risk associated with closed drainage techniques (passive [gravity] vs. suction) after PD.
Bradley R. Hall +6 more
doaj +2 more sources
Gravity Drainage of Bitumen Induced by Solvent Leaching [PDF]
ACS Omega, 2023 Steam-based thermal recovery processes are energy-intensive and pose environmental concerns due to their high greenhouse gas emissions. The application of solvents has shown promise in reducing the environmental impact of these processes. In this work, the solvent chamber theory is used to study the gravity drainage of bitumen.
Mohammadjavad Mohammadi +2 more
openaire +3 more sources
Safety of one 8.5-Fr pigtail catheter for postoperative continuous open gravity drainage after uniportal video-assisted thoracoscopic surgery pneumonectomy [PDF]
Journal of Cardiothoracic SurgeryObjectives Uniportal video-assisted thoracoscopic surgery pneumonectomy (U-VATS-P) is feasible and safe from a perioperative standpoint. How to choose the proper chest tube and drainage method is important in enhanced recovery after surgery (ERAS ...
Xiang-Long Kong +7 more
doaj +2 more sources
Gravity Drainage Mechanism in Naturally Fractured Carbonate Reservoirs; Review and Application
Energies, 2019 Gravity drainage is one of the essential recovery mechanisms in naturally fractured reservoirs. Several mathematical formulas have been proposed to simulate the drainage process using the dual-porosity model.
Karl Dunbar Stephen +2 more
exaly +3 more sources
Effects of Lean Zones on Steam-Assisted Gravity Drainage Performance
Energies, 2017 A thorough understanding of the effects of lean zones and the improvement of steam-assisted gravity drainage (SAGD) operations with such heterogeneities is critically important for reducing the disadvantages of lean zones.
Jinze Xu, , Xiaohu Dong
exaly +3 more sources
Hydraulic characteristics of sewer pipelines with internal deposits [PDF]
E3S Web of Conferences, 2023 This article focusses on the review of formulas for the hydraulic calculation of gravity drainage networks with internal deposits. In the existing practice of calculating gravity flow networks, there are methods of hydraulic calculation only for new ...
Shlychkov Dmitriy, Chelonenko Andrey
doaj +1 more source
Evaluation and improvement of CO2 assisted gravity drainage for enhanced oil production in China
Energy Reports, 2023 In view of the diversity of petroleum reservoir types, most petroleum reservoirs have very strong heterogeneity in properties. For many water flooding reservoirs, with the continuous water injection process, the effect of enhancing oil recovery begins to
Wenkuan Zheng +6 more
doaj +1 more source
Foam Application in Fractured Carbonate Reservoirs: A Simulation Study [PDF]
Iranian Journal of Oil & Gas Science and Technology, 2019 Fractured carbonate reservoirs account for 25% of world’s total oil resources and for 90% of Iranian oil reserves. Since calcite and dolomite minerals are oil wet, gas oil gravity drainage (GOGD) is known as the most influencing production mechanism. The
Ahmed Zoeir +2 more
doaj +1 more source
Experimental Study on Sweep Characteristics of Gas Gravity Drainage in the Interlayer Oil Reservoir
Frontiers in Energy Research, 2021 Stable gas gravity drainage is considered an effective method to enhance oil recovery, especially suitable for deep buried, large dip angle, and thick oil reservoirs. The influence of reservoir heterogeneity on controlling the gas–oil interface and sweep
Hongwei Yu +8 more
doaj +1 more source
Investigating the Effects of Heterogeneity, Injection Rate, and Water Influx on GAGD EOR in Naturally Fractured Reservoirs [PDF]
Iranian Journal of Oil & Gas Science and Technology, 2013 The gas-assisted gravity drainage (GAGD) process is designed and practiced based on gravity drainage idea and uses the advantage of density difference between injected CO2 and reservoir oil.
Misagh Delalat, Riyaz Kharrat
doaj +1 more source