To address the problem of low accuracy in identifying effective reservoirs in Mahu Sag, Baikouquan Formation in Well Block M2, Mahu Oilfield was taken as the study object. The geostatistical methods in combination with simultaneous and stochastic inversion were employed to predict effective reservoirs of dense glutenite in Mahu Oilfield, complete the reservoir quality and sweet spot classification evaluation, and characterize the reservoir characteristics of Baikouquan Formation, Mahu Oilfield in detail. The results of the study showed that S-wave prototype was established, and waveform factor parameters, quality control of inversion results and multi-attribute volume operations were adjusted, which not only solved the problem of wave impedance overlap in dense reservoirs, but also substantially improved the longitudinal and transverse wave resolution in reservoir prediction, and the objectivity and reliability of the inversion results were further determined. In addition, pre-stack inversion technology was used to improve the lithology probability and the prediction effect of reservoir physical properties, and successfully characterize the sand body boundary, providing reliable spatial constraints for geological and rock mechanics parameter modeling. The study results provide technical support for planning and deployment of reservoir evaluation and development in Baikouquan Formation, Mahu Oilfield.
Lian Guihui
,
Zhu Yating
,
Wang Xiaoguang
,
Li Zhou
,
Qin Ming
. Application of Pre-stack Inversion Technology to Reservoir Prediction of Mahu Oilfield[J]. Special Oil & Gas Reservoirs, 2022
, 29(1)
: 80
-84
.
DOI: 10.3969/j.issn.1006-6535.2022.01.012
[1] 王居峰,贾光华,刘军锷,等.史南地区沙三段浊积砂体成因模式探讨[J].油气地质与采收率,2003,10(4):8-10.
WANG Jufeng,JIA Guanghua,LIU Jun′e,et al.Discussion on the genesis model for turbidites of Es3 in Shinan Area[J].Petroleum Geology and Recovery Efficiency,2003,10(4):8-10.
[2] 杨培杰,穆星,印兴耀.叠前三参数同步反演方法及其应用[J].石油学报,2019,30(2):232-236.
YANG Peijie,MU Xing,YIN Xingyao.Prestack three-term simultaneous inversion method and its application[J].Acta Petrolei Sinica,2019,30(2):232-236.
[3] 柯钦,闫群,潘红卫,等.叠前反演技术在乾安北地区葡萄花油层的应用[J].石油天然气学报,2012,34(9):64-69.
KE Qin,YAN Qun,PAN Hongwei,et al.Application of prestack inversion in Putaohua reservoir of northern Qian′an region[J].Journal of Oil and Gas Technology,2012,34(9):64-69.
[4] 苑书金.叠前地震反演技术的进展及其在岩性油气藏勘探中的应用[J].地球物理学进展,2007,22(3):879-886.
YUAN Shujin.Progress of pre-stack inversion and application in exploration of the lithological reservoirs[J].Progress in Geophysics,2007,22(3):879-886.
[5] 杨海长,李智,徐建勇,等.叠前反演在LHK地区烃类检测中的应用[J].物探与化探,2011,35(5):666-670,688.
YANG Haichang,LI Zhi,XU Jianyong,et al.The application of pre-stack seismic inversion to hydrocarbon detection in the complex oil and gas field[J].Geophysical and Geochemical Exploration,2011,35(5):666-670,688.
[6] 范兴斌,康积伦,张延玲,等.叠前反演技术在利比亚El-Meheiriga油田油气检测中的应用[J].科学技术与工程,2011, 31(11):7644-7649.
FAN Xingbin,KANG Jilun,ZHANG Yanling,et al.The application of pre-stack inversion technology in hydrocarbon detection in LP Block,Lybia[J].Science Technology and Engineering,2011,31(11):7644-7649.
[7] 刘萱,谢占安,张国栋,等.南堡油田叠前反演技术与储层预测[J].天然气工业,2007,27(增刊1):439-442.
LIU Xuan,XIE Zhan′an,ZHANG Guodong,et al.Pre-stack inversion technology and reservoir prediction in Nanpu Oilfield[J].Natural Gas Industry,2007,27(S1):439-442.
[8] SUBHASHIS,MALLICK.Model-based inversion of amplitude-variations-with-offset data using a genetic algorithm[J].Geophysics,1995,60(4):939-954.
[9] CASTAGNA J P,SWAN H W.PRINCIPLES of AVO crossplotting[J].The Leading Edge,1997,16(4):337-342.
[10] WHITCOMBE D N,CONNOLLY P A,REAGAN R L,et al.Extended elastic impedance for fluid and lithology prediction[J].Geophysics,2002,67(1):63-68.
[11] HAAS A,DUBRULE O.Geostatistical inversion:a sequential method of stochastic reservoir modeling constrained by seismic data[J].First Break,1994,12(11):561-569.
