Abstract This paper investigates cracking failure of the casing tube. There were longitudinal cracks in heavy oil thermal recovery well occurred an field. The fracture cause was analyzed by macrographic observation, chemical composition analysis, mechanical property test, metallographic scanning electron microscope (SEM) and residual stress calculation. results showed that crack failed originat...

Abstract Thermal injection methods are usually used for high viscosity oil. The results of previous studies showed that the combination SF and SFF had highest increase in oil recovery but still requires further study to determine optimum strategy. This work is purposed optimize development scenario a combined CSS-SF applied heavy field located Sumatera, Indonesia. factor NPV become objective fu...

The conventional oil recovery system in the Fushun oil shale retorting plant has a low oil recovery rate. A large quantity of fresh water is used in the system, thereby consuming a considerable amount of water and energy, as well as polluting the environment. This study aims to develop a closed process of shale oil recovery from the circulating washing water for the Fushun oil shale retorting p...

gravity drainage is one of the important recovery mechanisms in fractured carbonate and conventional reservoirs. it occurs due to density difference between the gas in fracture and the oil in matrix as well as in conventional tilted reservoirs. oil phase will form films which are produced under gravity forces (film flow). many gas injection experiments have been done on laboratory scales with d...

Oil paint is a type of chemical colors dependent on the type and composition make multiple risks for our health. The aim of this study was to investigate the effects of oil paint vapor on thermal pain sensitivity in male rats. In this laboratory experimental study, male rats were randomly divided to control and animals exposed to oil paint vapor. Data were analyzed using ANOVA. The results indi...

Steamflood as one of thermal EOR method is effective to reduce the amount oil left in reservoir by mechanisms such reducing viscosity oil, evaporation, and displacement steam. In this method, fluid injected continuously into some injection wells displace obtain production from other wells. However, there are problems with steamflood process that still not optimally solved. There an early channe...