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- Title
Phase Development Pattern of Weathered Volcanic Reservoirs in Shixi High, Junggar Basin.
- Authors
Zhang Xiao; Chen Guojun; Li Junfei; Zhang Fan
- Abstract
To address the problem of poorly understood structural characteristics of weathered volcanic reservoirs and lack of effective delineation methods, the four phase patterns of weathered volcanic rocks are established and classi- fied from top to bottom, namely, strongly weathered clay phase, weathered hydrolysis phase, weakly weathered leaching and disintegration phase and unweathered parent rock phase, by taking weathered volcanic rocks in Shixi High, Junggar Basin as a study object and combining petrophysical experiments, FMI imaging data and comprehen- sive well logging and mud logging data. The weathered volcanic reservoir composite index and weathering composite index were constructed by using well logging data to finely classify the phases of weathered volcanic rocks, and the weakly weathered leaching and disintegration phase was clearly defined as the dominant phase of weathered volcanic rocks. The application in Shixi High, Junggar Basin is remarkable and provides a reference for the study of phases of the same type of volcanic reservoirs.
- Publication
Special Oil & Gas Reservoirs, 2023, Vol 30, Issue 3, p47
- ISSN
1006-6535
- Publication type
Article
- DOI
10.3969/j.issn.1006-6535.2023.03.006