Solar Generated Steam Injection in Hamca, Venezuelan Extra Heavy Oil Reservoir; Simulation Study for Oil Recovery Performance, Economical and Environmental Feasibilities

2015 ◽  
Author(s):  
Mohsen Mirzaie Yegane ◽  
Shahab Ayatollahi ◽  
Farzad Bashtani ◽  
C. Romero
Keyword(s):  
Oil Recovery ◽  
Simulation Study ◽  
Reservoir Simulation ◽  
Heavy Oil ◽  
Steam Injection ◽  
Oil Reservoir ◽  
Recovery Performance ◽  
Heavy Oil Reservoir ◽  
Oil Reservoir Simulation

Experimental Research on Hot Water Flooding of Different Rhythm Heavy Oil Reservoir after the Steam Injection

2012 ◽  
Vol 550-553 ◽  
pp. 2878-2882 ◽  
Author(s):  
Ping Yuan Gai ◽  
Fang Hao Yin ◽  
Ting Ting Hao ◽  
Zhong Ping Zhang
Keyword(s):  
Oil Recovery ◽  
Heavy Oil ◽  
Physical Simulation ◽  
Steam Injection ◽  
Hot Water ◽  
Water Flooding ◽  
Oil Reservoir ◽  
Steam Flooding ◽  
Heavy Oil Reservoir ◽  
Swept Volume

Based on the issue of enhancing oil recovery of heavy oil reservoir after steam injection, this paper studied the development characteristics of hot water flooding in different rhythm (positive rhythm, anti-rhythm, complex rhythm) reservoir after steam drive by means of physical simulation. The research shows that the positive rhythm reservoir has a large swept volume with steam flooding under the influence of steam overlay and steam channeling. Anti-rhythm reservoir has a large swept volume with hot water flooding, because hot water firstly flows along the high permeability region in upper part of the reservoir, in the process of displacement, hot water migrates to the bottom of reservoir successively for its higher density.

Characterization and Prediction of Gas Breakthrough With Cyclic Steam and Gas Stimulation Technique in an Offshore Heavy Oil Reservoir

2016 ◽  
Vol 139 (3) ◽  
Author(s):  
Haijun Wu ◽  
Qingjun Du ◽  
Jian Hou ◽  
Jingsong Li ◽  
Ruxiang Gong ◽  
...  
Keyword(s):  
Regression Model ◽  
Simulation Study ◽  
Reservoir Simulation ◽  
Heavy Oil ◽  
Horizontal Well ◽  
Oil Reservoir ◽  
Calibration Curves ◽  
Heavy Oil Reservoir ◽  
Stimulation Technique

In this paper, a reservoir simulation study was conducted for the characterization and prediction of gas breakthrough during the development of cyclic steam and gas stimulation (CSGS) for a horizontal well. A new concept named the gas breakthrough coefficient (GBC) was proposed to characterize the gas breakthrough degree quantitatively, and a regression model and two calibration curves were established to predict the gas breakthrough degree. The method of foam plugging to inhibit gas breakthrough was also discussed. It was found that the gas breakthrough degree could be well characterized by the GBC and distinguished as four types: weak, moderate, strong, and severe. The regression model and calibration curves could also be used to predict the gas breakthrough degree under different reservoir and development conditions. Foam plugging was found to be effective to inhibit gas breakthrough when the gas breakthrough degree was moderate or strong.

Heavy Oil Recovery Using In Situ Steam Generated by Thermochemicals: A Numerical Simulation Study

2019 ◽  
Vol 141 (12) ◽  
Author(s):  
Tamer Moussa ◽  
Mohamed Mahmoud ◽  
Esmail M. A. Mokheimer ◽  
Dhafer Al-Shehri ◽  
Shirish Patil
Keyword(s):  
Numerical Simulation ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Steam Injection ◽  
Heat Losses ◽  
Oil Reservoir ◽  
Operational Parameters ◽  
Commercial Development ◽  
Heavy Oil Reservoir

This paper introduces a novel approach to generate downhole steam using thermochemical reactions to overcome the challenges associated with heavy oil resources. The procedure developed in this paper is applied to a heavy oil reservoir, which contains heavy oil (12–23 API) with an estimated range of original oil in place (OOIP) of 13–25 billion barrels while its several technical challenges are limiting its commercial development. One of these challenges is the overlying 1800–2000-ft thick permafrost layer, which causes significant heat losses when steam is injected from the surface facilities. The objective of this research is to conduct a feasibility study on the application of the new approach in which the steam is generated downhole using the thermochemical reaction (SGT) combined with steam-assisted gravity drainage (SAGD) to recover heavy oil from the reservoir. A numerical simulation model for a heavy oil reservoir is built using a CMG-STARS simulator, which is then integrated with a matlab framework to study different recovery strategies on the project profitability. The design and operational parameters studied and optimized in this paper involve (1) well configurations and locations and (2) steam injection rate and quality as well as a steam trap in SAGD wells. The results show that the in situ SGT is a successful approach to recover heavy oil from the reservoir, and it yields high-project profitability. The main reason for this outperformance is the ability of SGT to avoid the significant heat losses and associated costs associated with the surface steam injection.

ISC Application in Heavy Oil Reservoir after CSS

2014 ◽  
Vol 962-965 ◽  
pp. 443-447
Author(s):  
Hong Jun Sun ◽  
Shi Qing Hu ◽  
Pei Wu Li
Keyword(s):  
Oil Recovery ◽  
Heavy Oil ◽  
Thermal Efficiency ◽  
Steam Injection ◽  
Oil Reservoir ◽  
Complex Fault ◽  
Deep Reservoir ◽  
Heavy Oil Reservoir ◽  
And Performance

In order to improve the flowability of crude oil, heavy oil reservoir usually developed by steam injection. While this process produces a lot of greenhouse gases. To deep reservoir, heat loss in the wellbore tends to more severe and thermal efficiency is lower. In-situ Combustion (ISC) is featured by heavy components’ combustion, high thermal efficiency and high oil recovery. Those advantages are outstanding especially in the aspects of improving thermal efficiency and reducing greenhouse gas emissions. This paper researched on ISC EOR process in a complex fault block, including reservoir design and performance evaluation. Remarkable development results have been achieved, which shows the potential for ISC technology and this paper provides a reference for the development of similar reservoirs.

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