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Petroleum Science and Technology Volume 38, 2020 - Issue 2
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Original Articles

Analysis on causes of differences in physical properties of Jurassic crude oil around Fukang depression, Junggar Basin

Yong SongResearch Institute of Petroleum Exploration and Development, Xinjiang Oilfield Company, PetroChina, Karamay, China; View further author information
,
Xulong WangXinjiang Oilfield Company, PetroChina, Karamay, ChinaView further author information
,
Xuguang GuoResearch Institute of Petroleum Exploration and Development, Xinjiang Oilfield Company, PetroChina, Karamay, China; View further author information
,
Chaowei LiuResearch Institute of Petroleum Exploration and Development, Xinjiang Oilfield Company, PetroChina, Karamay, China; Correspondence[email protected]
View further author information
,
Hui LiResearch Institute of Petroleum Exploration and Development, Xinjiang Oilfield Company, PetroChina, Karamay, China; View further author information
&
Deguang LiuResearch Institute of Petroleum Exploration and Development, Xinjiang Oilfield Company, PetroChina, Karamay, China; View further author information
Pages 75-82 | Published online: 16 Sep 2019
 
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Abstract

According to the differences in physical properties of Jurassic crude oil around Fukang depression, geochemical characteristics of oil are analyzed from five zones. The results show that differences in organic matter and biodegradation are the causes of differences in physical properties. Crude oil in Ganhe and Santai oilfield come from Permian sapropel source rocks. Because of biodegradation, crude oil in Santai oilfield was heavier. Due to multistage charging and biodegradation, crude oil in Fudong slope is characterized by mixed with normal density. The light oil in Fubei slope and Fukang depression belong to the products of Jurassic humic source rocks.

Additional information

Funding

This work is funded by National Science and Technology Major Project (No. 2017ZX05001-004) and the Science and Technology Major Project of PetroChina (No. 2017E-0401).

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