Fine stratigraphic division of volcanic reservoir by uniting of well data and seismic data—Taking volcanic reservoir of member one of Yingcheng Formation in Xudong area of Songliao Basin for an example

Abstract

Taking member one of Yingcheng Formation of Cretaceous in Xudong area, Xushen Gas Field of Songliao Basin for an example and aimed at the diachronous problem generally existed in volcanic reservoir division, firstly advanced the method of two steps and two unites in the researches of volcanic reservoir finely division that guided by the method that sources controlled and founded the stratigraphic trellis. In this process, volcanic edifices and bodies were identified and traced. The results indicated that aimed strata in study areas could be carved up to six layers of YC1I1, YC1I2, YC1I-II, YC1II1, YC1II2 and YC1III from the top to the bottom. Analyzing causes and firmly united of well data and seismic data could achieve fine stratigraphic division of volcanic reservoir. Surfaces of layers and volcanic bodies were basically unanimous in side direction. Stratum inclination gradually reduced with the distances increased from craters. The results of volcanic reservoir division had preferable consistency with lithologies and volcanic lithofacies and dynamic development data. The researches offered a useful method to stratigraphic division of volcanic reservoir and it had very important significance to effective development of volcanic reservoir in practice.

Keywords

stratigraphic division and correlation of volcanic stratum / volcanic body / volcanic reservoir / Yingcheng Formation / Xushen Gas Field

References

Chen H Q, Zhu X M. Microfacies Modeling in Fine Reservoir Description. Geological Science and Technology Information, 2008, 27(2): 73-79.

Chen H Q, Zhu X M, Liu C L, . Characteristics of Sequence Stratigraphy of Thalassic Strata of L Formation in Deepwater Area in a Basin. J. Mineral. Petrol., 2009, 29(1): 104-120.

Chen Y Q, Li B G. Classification and Correlation of Permian Volcanic Rocks in Mid-Tarim Area. Journal of the University of Petroleum, China, 2004, 28(6): 6-10.

Guo X R, Cheng S T, Liu X. Division and Correlation of Substrata in Reservoir Description: The Substrata of Dongying Formation in Kenxi Oilfield as An Example. Geological Science and Technology Information, 2001, 20(2): 55-58.

Hou Q J, Zhao Z K, Wang Z W. Compiled Volcanic Gas Reservoir-Prospected Methods and Practice of Great Volcanic Gas Reservoir in the Southern of Songliao Basin, 2009 Beijing: Science Press

Huang W, Shao H M, Zhao HL, . Characteristics of Yingcheng Formation’s Volcanic Reservoir in Xushen Gas Field in Northern Songliao Basin. Acta Petrolei Sinica, 2006, 27(Suppl.): 47-51.

Pang Y M, Chen B F, Yang S L, . 3D Geological Modeling Technology for the Volcanic Reservoir of Yingcheng Formation in the Xushen Gasfield, Songliao Basin. Chinese Journal of Geology, 2009, 44(2): 759-768.

Shu P, Ding R X, Qu Y M, . Lithologic and Lithofacies Patterns of Volcanic Reservoir in Xushen Gas Field. Gas Industry, 2007, 27(8): 23-27.

Stewart S A, Davies R J. Structure and Emplacement of Mud Volcano Systems in the South Caspian Basin. AAPG Bulletin, 2006, 90(5): 771-786.

Tomohisa K, Teikoku Oil C Ltd, Kozo S. Geological Modelling of a Heterogeneous Volcanic Reservoir by the Petrological Method.. SPE59407, 2000, 25–26: 1-8.

Wang D Z, Zhou X M. Volcanic Rock Lithology, 1982 Beijing: Science Press

Wang P J, Feng Z Q. Compiled Basin Volcanic Lithology, Lithofacies, Reservoir, Gas Accumulation and Prospecting, 2008 Beijing: Science Press

Wang Y N, Xi Y Q. Researches of Volcanic Lithology and Lithofacies and Porosity Structure Characteristics of the Member 1 of Yingcheng Formation of Xingcheng Area in Songliao Basin. China Petroleum Prospecting, 2009, 1: 24-29.

Wu H Y, Yang F P, Ren Y G, . Gas Reservoir Evaluated of Xushen-1 Well Area of Xujiaweizi Depression in the North of Songliao Basin, 2002 Beijing: Petroleun Industry Press

Xu Z S, Wang Y M, Pang Y M, . Identification and Evaluation of Xushen Volcanic Gas Reservoirs in Daqing. Petroleum Exploration and Development, 2006, 33(5): 521-531.

Yan L, Hu Y L, Ran Q Q, . Volcanic Characteristics and Eruption Models of Yingcheng Formation No. 1 Member in Xingcheng Area, Xujiaweizi Fault-Depression of Songliao Basin. Natural Gas Geoscience, 2008, 19(6): 821-825.

Zhang N. Research on Stratigraphic Sequence of the Jurassic-Cretaceous Lava in Jiangsu Province. Journal of Stratigraphy, 2009, 33(1): 91-97.

Zeng G C, Zheng H R, Wang F Z, . Volcanic Stratum Divided and Volcanic Lithofacies Analysised of Tertiary in Chunxi Area in Dongying Sag. Multiple Oil-Gas Field, 1996, 2: 55-58.