| Citation: | Pingping LI, Huayao ZOU, Yuanchun ZHANG, Cunwu WANG, Xuefeng ZHANG. Paleo-oil-Water Contact and Present-Day Gas-Water Contact: Implication for Evolution History of Puguang Gas Field, Sichuan Basin, China. Journal of Earth Science, 2008, 19(6): 715-725.
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The Puguang (普光) gas field is the largest gas field found in marine carbonate in China. The Puguang gas field experienced complicated evolution history from paleo-oil pool to gas pool. The purpose of this article is to reveal the evolution history of Puguang gas field through systematic study on the relationship between paleo-oil-water contact (POWC) and present-day gas-water contact (PGWC). POWC was recognized by observing the change of relative content of residual solid bitumen in the cores,and PGWC was observed using log and drilling stem test data. Two types of relationship between POWC and PGWC were observed in the Puguang gas field: POWC is above PGWC,and POWC is below PGWC. The former is normal as oil cracking may cause gas-water contact to move downward. The latter can be interpreted by lateral gas re-migration and re-accumulation caused by changes in structural configuration. The relationship between POWC and PGWC suggests that during oil charge,the southwestern and northwestern parts of the Puguang gas field were structurally lower than the northeastern and southeastern parts. Thrusting from Xuefengshan (雪峰山) since Yanshanian movement and from Dabashan (大巴山) since Himalayan movement resulted in the relative uplift of the southwestern and northwestern parts of the Puguang structure,which significantly changed the structural configuration. Based on the paleo-structure discussed in this article,the most probable migration directions of paleo-oil were from the northwest to the southeast and from the southwest to the northeast. Consequently,the evolution history of the Puguang gas field can be divided into three stages,namely,oil charging (200-170 Ma),cracking oil to gas (155-120 Ma),and gas pool adjustment (12-0 Ma).
| Brincat, M., Gartrell, A., Lisk, M., et al., 2006. An Integrated Evaluation of Hydrocarbon Charge and Retention at the Griffin, Chinook, and Scindian Oil and Gas Fields, Bar-row Subbasin, North West Shelf, Australia. AAPG Bulletin, 90: 1359-1380 doi: 10.1306/02210605103 |
| Dahlstrom, C. D. A., 1969. Balanced Cross Sections. Canadian Journal of Earth Sciences, 6: 743-757 doi: 10.1139/e69-069 |
| Du, C. G., 2006. The Study of Oil & Gas Migration, Accumula-tion and Reconstruction Mechanism in Changxing-Feixianguan Formaiton within Xuanhan-Da County: [Dissertation]. China University of Petroleum, Beijing. 57-67 (in Chinese with English Abstract) |
| Du, C. G., Zou, H. Y., 2007. Main Controlling Factors for Hydrocarbon-Bearing Quality of Traps in Feixianguan Formation in the Northeastern Sichuan Basin. Acta Petrolei Sinica, 28: 27-33 (in Chinese with English Ab-stract) |
| Eadington, P. J., Lisk, M., Krieger, F. W., 1996. Identifying Oil Well Sites. United States Patent No. 5543616 |
| George, S. C., Lisk, M., Eadington, P. J., 2004. Fluid Inclusion Evidence for Early, Marine-Sourced Oil Charge Prior to Gas-Condensate Migration, Bayun-1, Timor Sea, Australia. Marine and Petroleum Geology, 21: 1107-1128 doi: 10.1016/j.marpetgeo.2004.07.001 |
| Hao, F., Guo, T. L., Zhu, Y. M., et al., 2008. Evidence for Mul-tiple Stages of Oil Cracking and Thermochemical Sulfate Reduction in the Puguang Gas Field, Sichuan Basin, China. AAPG Bulletin, 92: 611-637 doi: 10.1306/01210807090 |
| He, D. F., Jia, C. Z., Tong, X. G., et al., 2004. Discussion and Analysis of Superimposed Sedimentary Basins. Petroleum Exploration and Development, 31: 1-7 (in Chinese with English Abstract) |
| Jin, Z. J., 2005. Particularity of Petroleum Exploration on Ma-rine Carbonate Strata in China Sedimentary Basins. Earth Science Frontiers, 12(3): 15-22 (in Chinese with English Abstract) |
| Jin, Z. J., Cai, L. G., 2007. Inheritance and Innovation of Ma-rine Petroleum Geological Theory in China. Acta Ge-ologica Sinica, 81(8): 1017-1024 (in Chinese with Eng-lish Abstract) |
| Jin, Z. J., Long, S. X., Zhou, Y., et al., 2006. A Study on the Distribution of Saline-Deposit in Southern China. Oil & Gas Geology, 27(5): 571-583 (in Chinese with English Abstract) |
| Li, J., Xie, Z. Y., Dai, J. X., et al., 2005. Geochemistry and Ori-gin of Sour Gas Accumulations in the Northeastern Si-chuan Basin, SW China. Organic Geochemistry, 36: 1703-1716 doi: 10.1016/j.orggeochem.2005.08.006 |
| Lisk, M., O′Brien, G. W., Eadington, P. J., 2002. Quantitative Evaluation of the Oil-Leg Potential in the Oliver Gas Field, Timor Sea, Australia. AAPG Bulletin, 86: 1531-1542 |
| Ma, L., Chen, H. J., Gan, K. W., 2004. Tectonics and Marine Petroleum Geology in South China. Geological Publishing House, Beijing. 37- 41 (in Chinese) |
| Ma, Y. S., Guo, X. S., Guo, T. L., et al., 2007. The Puguang Gas Field: New Giant Discovery in the Mature Sichuan Basin, SW China. AAPG Bulletin, 91: 627-643 doi: 10.1306/11030606062 |
| Ma, Y. S., Zhang, S. C., Guo, T. L., et al., 2008. Petroleum Ge-ology of the Puguang Sour Gas Field in the Sichuan Basin, SW China. Marine and Petroleum Geology, 25: 357-370 doi: 10.1016/j.marpetgeo.2008.01.010 |
| Shen, C. B., 2006. Mesozoic-Cenozoic Basin-Mountain System and Forming Process of Marine Petroleum Reservoir in Northeast Sichuan Basin-Daba Mountain Zone: [Disserta-tion]. China University of Geosciences, Wuhan. 68-73 (in Chinese with English Abstract) |
| Wang, C. W., 2008. Study on the Overpressure Development, Evolvement and Origin Mechanism in the Carbonate Res-ervoir of the Northeast Area, Sichuan Basin: [Dissertation]. China University of Geosciences, Wuhan. 23-24 (in Chi-nese with English Abstract) |
| Xie, Z. Y., Li, J., Shan, X. Q., et al., 2005. Reservoiring Process and Accumulation Efficiency of Feixianguan Formation Gas Pool in Luojiazhai, Northeastern Sichuan Basin. Oil & Gas Geology, 26: 765-769 (in Chinese with English Abstract) |
| Zhao, W. Z., Hu, S. Y., Dong, D. Z., et al., 2007. Petroleum Ex-ploration Progresses during the 10th Five-Year Plan and Key Exploration Domains for the Future in China. Petro-leum Exploration and Development, 34: 513-520 (in Chi-nese with English Abstract) |
| Zou, H. Y., Hao, F., Zhu, Y. M., et al., 2008a. Source Rocks for the Giant Puguang Gas Field, Sichuan Basin: Implication for Petroleum Exploration in Marine Sequences in South China. Acta Geologica Sinica, 82: 477-486 |
| Zou, H. Y., Zhang, Y. C., Liu, J. Z., et al., 2008b. Evolution of the Moxizhuang Oil Field, Central Junggar Basin, North-west China. Journal of China University of Geosciences, 19(3): 242-251 doi: 10.1016/S1002-0705(08)60043-6 |
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