... Abstract Heavy oils are characterised depending on their density rather than their viscosity [ 1 ]. Although there are various definitions for what constitutes heavy oil it is commonly agreed that the majority contain impurities such as asphaltenes, waxes and carbon residue. The API gravity...

... Abstract The Greater Burgan field is under production for more than 60 years and producing light to medium API oil. The objective of this paper is to explain an innovative method adopted in testing of Lower Burgan formation heavy oil and challenges faced during testing. Heavy-oil zones...

... Abstract There are various types of reservoirs in Dagang oilfield, in which the geological reserves of heavy oil reservoirs account for 43.1% of the total geological reserves developed. In Liuguanzhuang, Kongdian and other heavy oil blocks, the average viscosity of crude oil is 8537 mPa•s...

... Modeling & Simulation Artificial Intelligence oil production viscosity Upstream Oil & Gas application enhanced recovery Engineering Oil Viscosity crude oil heavy oil California recovery method reservoir Oil Recovery heavy oil reservoir reservoir simulation Compound...

... Abstract Lower Fars heavy oil <16 °API is considered a type of conventional heavy oil, which will be considered as priority petroleum production system for future heavy oil recovery in Kuwait. These types of oils are abundant in great amounts in Ratga field North Kuwait, yet expensive...

... is higher for specialized areas of application, like Heavy Oil. This paper will present our insights and learnings in the process of shaping skilled profiles needed to handle heavy oil developments, grounded on our experience in Kuwait Oil Company (KOC), with a focus on subsurface profiles. To further...

... Abstract Heavy oil reservoirs contain a large amount of hydrocarbons that are relatively difficult to produce and lift to the surface due to the very low mobility of these heavy oils. Even after producing these heavy oils, transportation problems arise as well due to the extremely high...

... Abstract D block is a heavy oil reservoir that was first developed in 1997 with the method of Cyclic Steam Stimulation (CSS). After nearly 20 years’ development, several technical challenges have shown: the reservoir pressure decreased from 7.4MPa to 2.9MPa, and the Steam Oil Ratio (SOR...

... with caution: heavy oil is very sensitive and interaction with such conventional acids include asphaltene precipitation, sludge and emulsions. Suplacu de Barcau is a shallow, heavy oil reservoir (16°API average) located in the northwestern part of Romania. It has been successfully operated with aid of both...

... Abstract Heavy oil is an important part of unconventional resources. Many great breakthroughs have been made in heavy oil EOR mechanism of thermal methods. With the unprecedented development of technology, Super-critical Water Coupled with Toe-point Injection Technique is entering people’s view...

... to ascertain grain density & total porosity. Delineation of pay zones (heavy oil bearing) & estimation of saturation become more uncertain due to reservoir complexities. Elemental spectroscopy log can provide real time grain density, TOC (Total Organic Carbon) and mineralogy for complex reservoirs...

... Abstract Cost and thermal stability are the major obstacles in using chemical additives for enhanced heavy-oil applications. Visual analysis of biodiesel in water emulsions obtained from the bitumen recovery tests from previous studies demonstrated that high pressure steam can lead to formation...

... Abstract The performance of Pressure Transient Analysis (PTA) in heavy oil and low transmissivity formations is different from the conventional reservoirs, so the main objective of this work is to describe the pressure transient behavior in these low mobility-low transmissivity systems...

... accumulation are dominant in the region. The oil quality becomes heavier towards North and has a strong structural control. Significant volume of inplace oil has been estimated during this study which would be pursued for commercial exploitation of this deep heavy oil reservoir. Burgan clastic sedimentation...

... Abstract In this study, we use a custom-designed visual cell to investigate nonequilibrium interactions between liquid propane (C 3(1) ) and a heavy oil sample (7.2°API) at 55°C. The heavy oil sample is taken from Clearwater Formation located in Western Canadian Sedimentary Basin (WCSB). We...

... Abstract Simulation of fractured reservoirs is an old headache in oil industry, especially for reservoirs located in southern west of Iran. The situation is much more complex when dealing with heavy oil. Most of the simulation results are not reliable due to the many uncertainties in the data...

..., soak period and production period with a view to improving crude oil recovery in Ratqa-North Kuwait Lower Fars Heavy Oil (LFHO) reservoir. Further economic studies are then pursued to determine the effectiveness of cyclic steam injection operations whilst maintaining a safe operational environment...

... Abstract Extreme heavy oil <5 °API is considered a type of unconventional tight oil, which will require a challenging petroleum production system for future new-generation extreme heavy oil or bitumen carbonate reserves. This oil is abundant in great amounts around the globe, yet...

... Abstract The recovery of unconventional oil such as heavy oil is receiving great interest as the world oil demand is increasing along with relatively high oil prices. Producing such high viscosity oil is complex and challenging, which usually require thermal techniques. Thermal recovery methods...

... Abstract Viscosity is driven by asphaltene content and is a key parameter in the development of heavy oil fields. Understanding fluid composition and temperature and pressure-induced changes in fluid viscosity is vital for an optimized production strategy and surface facility design. A recent...