Abstract
In view of the problems of fast phase change, strong multi-solution of the position prediction of the inter-well narrow channel sand body and unclear type of the sand body connectivity in Daqing Oilfield, this paper takes the Soil group in Block A of Sartu Oilfield in Daqing Oilfield as an example to carry out the integrated research of seismic processing, pre-stack inversion and development evaluation. The correction processing technology such standardization is adopted to provide high-quality logging data, and the absorption compensation technology and some seismic angle gather stacking optimization technology are adopted to provide highly consistent seismic angle gather data, and the pre-stack inversion is carried out using the quality control logging and seismic data; The rock physical simulation technology based on xu-white is adopted to determine the boundary value of sandstone and shale; The well point is guided by the P-wave curve, and the inter-well is constrained by the partial stacked seismic trace data. The Markov chain Monte Carlo algorithm of seismic waveform indication is used to realize the prediction of the P-wave and S-wave combined sand body and fluid identification. Through qualitative and quantitative methods to evaluate the inversion results. The quantitative method is the statistical analysis of the post-test well data, and the qualitative method is to depict the sedimentary facies map of the inversion results. Statistics of post-test well data shows that the accuracy of pre stack inversion can reach 80.7% for thin interbedded sand bodies with a thickness of 1–2 m, and over 85% for sand bodies with a thickness of more than 2 m; The fluid prediction has also been verified by oil saturation analysis of coring wells. Based on the sedimentary facies zone map depicted by pre stack inversion results, the number of narrow and small river channels identified between wells has increased, the continuity has increased, and the river boundary is clear, which is consistent with geological understanding. This achievement has been applied in the fine adjustment and potential tap** of S group in the study area, guiding the fracturing and hole patching measures of 12 wells, and achieving good development results and economic benefits.
Copyright 2023, IFEDC Organizing Committee.
This paper was prepared for presentation at the 2023 International Field Exploration and Development Conference in Wuhan, China, 20–22 September 2023.
This paper was selected for presentation by the IFEDC Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper, as presented, have not been reviewed by the IFEDC Technical Team and are subject to correction by the author(s). The material does not necessarily reflect any position of the IFEDC Technical Committee its members. Papers presented at the Conference are subject to publication review by Professional Team of IFEDC Technical Committee. Electronic reproduction, distribution, or storage of any part of this paper for commercial purposes without the written consent of IFEDC Organizing Committee is prohibited. Permission to reproduce in print is restricted to an abstract of not more than 300 words; illustrations may not be copied. The abstract must contain conspicuous acknowledgment of IFEDC. Contact email: paper@ifedc.org.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Zhang, H., Shan, G., Du, Q., et al.: Technical problems and countermeasures for Water Drive development in the late stage of Daqing Placanticline Oilfield with extra high water cut. Daqing Petrol. Geol. Dev. 41(4), 60–66 (2022)
Wang, F.: Progress and prospect of development technology in Daqing Changyuan oilfield during the extra high water cut period. Daqing Petrol. Geol. Dev. 38(5), 51–58 (2019)
Yuan, Q., Pang, Y., Du, Q., et al.: Development law of sand body oilfields at extra high water cut stage. Daqing Petrol. Geol. Dev. 36(3), 49–55 (2017)
Shi, C., Wu, X.: Development model and evolution trend of Lasaxing oilfield. Daqing Petrol. Geol. Dev. 38(5), 46–50 (2019)
Cai, D., Han, Y.: Well seismic combined reservoir description method in dense well pattern area of Daqing Changyuan oilfield. Daqing Petrol. Geol. Dev. 34(2), 148–153 (2015)
Xu, L., Song, B., Han, S., et al.: Application of variable scale structural model in geostatistical inversion reservoir prediction. J. Petrol. 40(2), 190–196 (2019)
Zhang, X., Jiang, Y., Hao, L., et al.: Stochastic seismic inversion under dense well pattern and its application in channel sandbody prediction. Petrol. Geophys. Exp. 49(5), 954–964 (2014)
Wang, B., Zhu, Y., Wang, D.: Fluid mechanism model of porous media and its dispersion mechanism. Prog. Explor. Geophy. 31(6), 405–413 (2008)
Chen, Y.H., Bi, J.J., Qiu, X.B., et al.: Seismic waveform indication inversion method and its application. Petrol. Explor. Dev. 47(6), 1149–1158 (2020)
Jiang, Y., Xu, L., Zhang, X., et al.: Application of prestack geostatistical inversion method to reservoir prediction in Changyuan oilfield. Progr. Geophys. 28(5), 2579–2586 (2013)
Zhao, H.: Study on Fine Reservoir Sedimentology in Songliao Lake Basin. Petroleum Industry Press, Bei**g (2009)
Yin, X., Liu, X.: Research status and progress of reservoir seismic petrophysical modeling. Petrol. Geophys. Prospect. 55(3), 309–325 (2016)
Xu, S., White, R.E.: A new velocity model for clay-sand mixtures. Geophys. Prospect. 43(1), 91–118 (1995)
Keys, R.G., Xu, S.: An approximation for the Xu-White velocity model. Geophysics 67(5), 1406–1414 (2002)
Wan, H., Fan, X.Y., Liu, T., et al.: Methods and applications for improving pre-stack seismic data resolution. Prog. Geophys. 27(1), 304–311 (2012)
Ma, G., Li, Y., Huang, Y., et al.: Research on prestack inversion method of low permeability reservoir based on petrophysical forward modeling analysis. Adv. Geophys. 4(16), 291–298 (2018)
Song, Y., Ju, L., Pei, M.: Application of fluid identification factor in oil and gas detection of Fuyu reservoir. Daqing Petrol. Geol. Dev. 37(2), 140–143 (2018)
Acknowledgments
The paper is supported by National Science and Technology Major Special Project “Daqing Changheng Extra High Water Cut Oilfield Enhanced Oil Recovery Demonstration Project” (Number 2016ZX05054).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Copyright information
© 2024 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Yang, Hd., Zhou, Jy., Liang, Y., Cai, Dm., Fu, Xd., Wang, Yh. (2024). Application of Pre-stack Inversion in Fine Potential Tap** of Old Oilfield. In: Lin, J. (eds) Proceedings of the International Field Exploration and Development Conference 2023. IFEDC 2023. Springer Series in Geomechanics and Geoengineering. Springer, Singapore. https://doi.org/10.1007/978-981-97-0468-2_57
Download citation
DOI: https://doi.org/10.1007/978-981-97-0468-2_57
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-97-0467-5
Online ISBN: 978-981-97-0468-2
eBook Packages: EngineeringEngineering (R0)