Chemically Assisted Ignition Technologies for a Light Oil Air Injection Process

2005 ◽  
Author(s):  
J. Li ◽  
S.A. Mehta ◽  
R.G. Moore ◽  
M.G. Ursenbach ◽  
E. Zalewski ◽  
...  
Keyword(s):  
Air Injection ◽  
Injection Process ◽  
Light Oil

Chemically Assisted Ignition Technologies for a Light Oil Air Injection Process

2008 ◽  
Vol 47 (07) ◽  
Author(s):  
J. Li ◽  
S.A. Mehta ◽  
R.G. Moore ◽  
M.G. Ursenbach ◽  
E. Zalewski ◽  
...  
Keyword(s):  
Air Injection ◽  
Injection Process ◽  
Light Oil

A Methodology for Screening and Ranking of Reservoirs for Light Oil Air Injection Implementation

2014 ◽  
Author(s):  
E.. Niz-Velasquez ◽  
M. L. Trujillo ◽  
C.. Delgadillo ◽  
J.. Padilla
Keyword(s):  
Numerical Simulation ◽  
Oil Recovery ◽  
Evaluation Method ◽  
Feasibility Studies ◽  
Air Injection ◽  
Successful Implementation ◽  
Screening Criteria ◽  
Oil Companies ◽  
Injection Process ◽  
Light Oil

Abstract A great portion of the produced oil currently comes from mature fields, reason why the increase in oil production of current reservoirs is the main objective of oil companies. Thermal enhanced oil recovery processes have been studied, implemented and improved over the years. In the last decade there has been significant interest in the light oil air injection (LOAI) process since the successful implementation of the process known as High Pressure Air Injection in the Buffalo Field (USA), which is a variation from the air injection process in light oil, applicable to deep reservoirs with low permeability and porosity. Proof of this are the West Hackberry Field (USA), more than five commercial projects along the Willinston Basin (USA) and recently a pilot in the Zhong Yuan Field (China). Additionally, feasibility studies have also been initiated and performed in Mexico, Argentina and Colombia. This article proposes screening criteria for the selection of potential light oil reservoirs to be candidates for air injection, as well as a general methodology for the prioritization of the reservoirs with the highest LOAI implementation potential. Said methodology employs screening criteria, analogies and numerical simulation. The first part goes beyond the binary screening by assigning a weight to each one of the criteria, therefore resulting in a numerical ranking. For the analogies the reservoirs in which the technology has already been applied are grouped in four group types, against which the field on evaluation is compared. There is also a numerical simulation in 1D – 2D, where the injectivity with or without pressurization is evaluated, as well as the displacement stability. Additionally a multi-criteria evaluation method is used to select the best candidate.

Experimental Study on the Safety of Exhaust Gas in the Air Injection Process for Light Oil Reservoirs

2016 ◽  
Vol 30 (6) ◽  
pp. 4504-4508 ◽  
Author(s):  
Pengliang Li ◽  
Zhenyi Liu ◽  
Changgen Feng ◽  
Yao Zhao ◽  
Mingzhi Li ◽  
...  
Keyword(s):  
Experimental Study ◽  
Air Injection ◽  
Oil Reservoirs ◽  
Exhaust Gas ◽  
Injection Process ◽  
Light Oil ◽  
Light Oil Reservoirs

Thermal kinetics investigation on light oil oxidation during high-pressure hypoxic air injection process

2016 ◽  
Vol 34 (14) ◽  
pp. 1307-1314 ◽  
Author(s):  
Peng-Gang Liu ◽  
Wan-Fen Pu ◽  
Yi-Qing Zhao ◽  
Zhe-Zhi Liu ◽  
Hong-Jun Gu ◽  
...  
Keyword(s):  
High Pressure ◽  
Air Injection ◽  
Oil Oxidation ◽  
Injection Process ◽  
Thermal Kinetics ◽  
Light Oil

The Mechanism of Flue Gas Injection for Enhanced Light Oil Recovery

2004 ◽  
Vol 126 (2) ◽  
pp. 119-124 ◽  
Author(s):  
O. S. Shokoya ◽  
S. A. (Raj) Mehta ◽  
R. G. Moore ◽  
B. B. Maini ◽  
M. Pooladi-Darvish ◽  
...  
Keyword(s):  
Oil Recovery ◽  
Flue Gas ◽  
Gas Injection ◽  
Cost Effective ◽  
Air Injection ◽  
Oil Reservoirs ◽  
Flue Gases ◽  
Low Permeability ◽  
Light Oil ◽  
Light Oil Reservoirs

Flue gas injection into light oil reservoirs could be a cost-effective gas displacement method for enhanced oil recovery, especially in low porosity and low permeability reservoirs. The flue gas could be generated in situ as obtained from the spontaneous ignition of oil when air is injected into a high temperature reservoir, or injected directly into the reservoir from some surface source. When operating at high pressures commonly found in deep light oil reservoirs, the flue gas may become miscible or near–miscible with the reservoir oil, thereby displacing it more efficiently than an immiscible gas flood. Some successful high pressure air injection (HPAI) projects have been reported in low permeability and low porosity light oil reservoirs. Spontaneous oil ignition was reported in some of these projects, at least from laboratory experiments; however, the mechanism by which the generated flue gas displaces the oil has not been discussed in clear terms in the literature. An experimental investigation was carried out to study the mechanism by which flue gases displace light oil at a reservoir temperature of 116°C and typical reservoir pressures ranging from 27.63 MPa to 46.06 MPa. The results showed that the flue gases displaced the oil in a forward contacting process resembling a combined vaporizing and condensing multi-contact gas drive mechanism. The flue gases also became near-miscible with the oil at elevated pressures, an indication that high pressure flue gas (or air) injection is a cost-effective process for enhanced recovery of light oils, compared to rich gas or water injection, with the potential of sequestering carbon dioxide, a greenhouse gas.

Steam-Air Injection Process

2016 ◽  
Author(s):  
Jeannine Chang ◽  
John Ivory
Keyword(s):  
Air Injection ◽  
Injection Process
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