The effects of temperature and acid number of crude oil on the wettability of acid volcanic reservoir rock from the Hailar Oilfield |
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| Authors: | Quan Xie Shunli He Wanfeng Pu |
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| Affiliation: | 1. Key Laboratory of Petroleum Engineering, Ministry of Education, China University of Petroleum, Beijing 102249, China
2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China |
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| Abstract: | Wettability of acid volcanic reservoir rock from the Hailar Oilfi eld,China,was studied with crude oils of different acid numbers generated from an original crude oil with an acid number of 3.05 mg KOH/g. The modif ied oils and their resultant acid numbers were:A(2.09 mg KOH/g) ,B(0.75 mg KOH/g) ,C(0.47 mg KOH/g) ,D(0.30 mg KOH/g) ,and E(0.18 mg KOH/g) . Contact angles and improved Amott water indexes were measured to study the effects of temperature and acid number on the wettability of the acid volcanic r... |
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| Keywords: | Acid volcanic reservoir rock Amott wettability index wetting angle temperature acid number wettability |
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