EXPERIMENT ON ABIOTIC FACTOR OXYGEN CONSUMPTION OF THE RESERVOIR

doi:10.3863/j.issn.1000-2634.2007.03.024

西南石油大学学报(自然科学版) ›› 2007, Vol. 29 ›› Issue (3): 88-90.DOI: 10.3863/j.issn.1000-2634.2007.03.024

• 油气化学工程与化工 • Previous Articles Next Articles

EXPERIMENT ON ABIOTIC FACTOR OXYGEN CONSUMPTION OF THE RESERVOIR

KONG Xiang-ping ¹ WANG Xiu-lin 1 LUAN Chuan-zhen ² et al.

(Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao Shandong 266100, China)

Received:2006-06-19 Revised:1900-01-01 Online:2007-06-20 Published:2007-06-20
Contact: KONG Xiang-ping

Abstract

Abstract: To aerobic microbial enhanced oil recovery, determining the amount of oxygen injection is a problem urgently to be solved. Oxygen consumption of crude oil, injected water and produced water of one block in Shengli Oilfield is probed by analyzing changes of gas composition before and after the reaction in highpressure oxidation tubes. The results suggeste that abiotic oxygen consumption of reservoirs at 70℃ is mainly the lowtemperature oxidation of crude oil. The oxygen consumption per gram crude oil is 20.15 mg after 12d oxidation reaction at 6.3MPa, 70℃ and 3.29% consumed oxygen formes CO2. The oxygen consumption per liter injected water is 11.12mg after 12 d oxidation reaction when the ratio of high pressure air to injected water is 1∶23 at 5.8MPa, 70℃, and 95.00% consumed oxygen formes CO2. The oxygen consumption per liter produced water is 3.98mg after 12d oxidation reaction when the ratio of high pressure air to produced water is 1∶23 at 6.3MPa, 70℃, and almost all the consumed oxygen formes CO2. The results will provide theoretical basis for microbial enhanced oil recovery by adopting airassistant technique.

Key words: microbial enhanced oil recovery, reservoir, abiotic factor, oxygen consumption, lowtemperature oxidation

CLC Number:

TE357.9

KONG Xiang-ping WANG Xiu-lin LUAN Chuan-zhen et al.. EXPERIMENT ON ABIOTIC FACTOR OXYGEN CONSUMPTION OF THE RESERVOIR[J]. 西南石油大学学报(自然科学版), 2007, 29(3): 88-90.

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EXPERIMENT ON ABIOTIC FACTOR OXYGEN CONSUMPTION OF THE RESERVOIR

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