APPLICATION OF REFINED RESERVOIR CHARACTERIZATION TORELEASING POTENTIAL OF WELL-DEVELOPED OIL FIELDS: TAKING BANNAN AREA OF HUANGHUA DEPRESSION AS AN EXAMPLE

Expand
  • (1. China University of Petroleum, Beijing 102249, China; 2.Northwest Branch of PetroChina Research Institute of Petroleum Exploration and Development, Lanzhou 730020, China; 3.CNPC International Research Center, Beijing 100083,China)

Received date: 2007-04-18

  Revised date: 2007-09-27

  Online published: 2008-06-20

Abstract

The Bannan Oilfield is on its later stages of development, new discovery of oil potential is inevitably the most reliable way in sustaining its historical importance of production. A refined technique portfolio is developed to achieve a better understanding of reservoirs featuring heavily faulted, low relief, thin beds with narrow lateral extension. The problems arising from the recognition of micro-faults, tiny blocks, and microstructures are tackled in this paper through a series of techniques as: seismic aided genetic correlation, slant well trajectory calibration, 3D seismic well tying, wavelet domain coherence and true three-dimensional seismic based structural modeling. The spatial extension of individual sand bodies is delineated based on micro facies analysis and lithological inversion. The study shows that the distribution of oil and gas accumulations is governed by both structural features and lithological variations. Sub-bed group structures are well developed. These micro structures, together with the fault proximity regions and the previous undiscovered oil bearing sand bodies contribute to the major sustaining potential. The promising oil and gas flows of the 3 wells drilled based on this study are prudently advertising the remarkable value of this technical practice in extending the life of developed oil fields.

Cite this article

SU Ming-jun,WANG Xi-wen,HAN Qian-feng,LIU Cai-yan,YUAN Ke-feng . APPLICATION OF REFINED RESERVOIR CHARACTERIZATION TORELEASING POTENTIAL OF WELL-DEVELOPED OIL FIELDS: TAKING BANNAN AREA OF HUANGHUA DEPRESSION AS AN EXAMPLE[J]. Natural Gas Geoscience, 2007 , 18(6) : 864 -868 . DOI: 10.11764/j.issn.1672-1926.2007.06.864

References

[1]王西文,苏明军,王大兴,等.相控—等时小层对比方法及应用[J].石油勘探与开发,2003,30(6):78-80.
[2]王西文,杨孔庆,周立宏,等.基于小波变换的地震相干体算法研究[J].地球物理学报,2002,45(6):847-852.
[3]Reshel M.The use of 3-D prestack depth imaging to estimate layer velocities and reflect or positions[J].Geophysics, 1997, 62(1):206- 210. 
[4]Whitmore N D, Caring J D.Interval velovily estimation using iterative prestack depth migration in the constant angle domain[J].The Leading Edge, 1993, 12(7):757-762.
[5]陈启林,杨占龙.岩性油气藏勘探方法与技术[J].天然气地球科学,2006,17(5):622-626.
[6]王德发,张服民,孙永传,等.黄骅拗陷第三系沉积相及沉积环境[M].北京:地质出版社,1987:29-62.
[7]陈纯芳,赵澄林,李会军.板桥和歧北凹陷沙河街组深层碎屑岩储层物性特征及其影响因素[J].石油大学学报:自然科学版,2002,26(1):4-7.
[8]魏立花,郭精义,杨占龙,等.测井约束岩性反演关键技术分析[J].天然气地球科学,2006,17(5):731-735.
[9]石占中,张一伟,熊琦华,等.大港油田港东开发区剩余油形成与分布的控制因素[J].石油学报,2005,26(1):79-82.

Outlines

/