Types, Evolution of Fractures, and Their Relationship with Oil and Gas Migration of Permian Changxing Formation in Yuanba Gas Field of Sichuan Basin, China

2017 ◽  
Vol 31 (9) ◽  
pp. 9345-9355 ◽  
Author(s):  
Jingdong Liu ◽  
Guangxiang Liu
Keyword(s):  
Sichuan Basin ◽  
Oil And Gas ◽  
Gas Migration ◽  
Gas Field ◽  
Changxing Formation

Formation Mechanism of the Changxing Formation Gas Reservoir in the Yuanba Gas Field, Sichuan Basin, China

2011 ◽  
Vol 85 (1) ◽  
pp. 233-242 ◽  
Author(s):  
LONG Shengxiang ◽  
HUANG Renchun ◽  
LI Hongtao ◽  
YOU Yuchun ◽  
LIU Guoping ◽  
...  
Keyword(s):  
Formation Mechanism ◽  
Sichuan Basin ◽  
Gas Reservoir ◽  
Gas Field ◽  
Changxing Formation

Reservoir Characteristics of Reef-Shoal Facies, Changxing Formation, Yuanba Gasfield, Sichuan Basin

2014 ◽  
Vol 998-999 ◽  
pp. 1448-1451
Author(s):  
Pei Rong Zhao
Keyword(s):  
Sichuan Basin ◽  
Large Scale ◽  
Gas Flow ◽  
Normal Pressure ◽  
Tectonic Deformation ◽  
Burial Depth ◽  
Gas Field ◽  
Changxing Formation ◽  
Northeastern Sichuan ◽  
Gas Fields

Based on the successful practice of Puguang gas field, in 2006, Well Yuanba 1 was drilled in northeastern Sichuan by SINOPEC, obtaining the gas flow of 503,000 m3per day in reef-shoal reservoirs in Changxing Formation. This announced the discovery of Yuanba Gasfield. Yuanba Fasfield is a lithologic gas pool with characteristics of: high H2S content while normal pressure, weak tectonic deformation, deep burial,etc. Yuanba Gasfield is the deepest marine gas fields in Sichuan Basin, the middle of the gas pool reaches the average burial depth of 6,600 m. Reservoirs mainly developed in the Changxing reef-shoal facies with the large scale and good reservoir quality. The reservoir formation was controlled mainly by early meteoric dissolution and dolomitization, while deep dissolution and tectonics contributes a little.

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