[1]史瑞其,鲍祥生,汪 轩,等.不同干燥岩石体积模量计算方法在S油田的对比分析研究[J].复杂油气藏,2023,16(04):405-409.[doi:10.16181/j.cnki.fzyqc.2023.04.007]
 SHI Ruiqi,BAO Xiangsheng,WANG Xuan,et al.Comparative analysis of bulk modulus calculation methods of differentdry rocks in S Oilfield[J].Complex Hydrocarbon Reservoirs,2023,16(04):405-409.[doi:10.16181/j.cnki.fzyqc.2023.04.007]
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不同干燥岩石体积模量计算方法在S油田的对比分析研究()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
16卷
期数:
2023年04期
页码:
405-409
栏目:
油气探勘
出版日期:
2023-12-25

文章信息/Info

Title:
Comparative analysis of bulk modulus calculation methods of differentdry rocks in S Oilfield
作者:
史瑞其1鲍祥生2汪 轩1刘励云1冼银燕2
1.中国海洋石油国际有限公司,北京,100028;2.广东石油化工学院,广东 茂名,525000
Author(s):
SHI Ruiqi1BAO Xiangsheng2WANG Xuan1LIU Liyun1XIAN Yinyan2
1. CNOOC International Limited,Beijing,100028,China;2. Guangdong University of Petrochemical Technology,Maoming,525000,China
关键词:
时移地震OBN岩石物理体积模量Macbeth法
Keywords:
time-shifted seismicOBNpetrophysicsbulk modulusMacbeth method
分类号:
P631
DOI:
10.16181/j.cnki.fzyqc.2023.04.007
文献标志码:
A
摘要:
时移地震随着OBN等海上先进采集技术的发展而得到越来越多的重视,相对传统采集技术,以OBN为代表的先进采集技术提升了时移地震资料质量,为更好地认识油气藏提供了宝贵的资料,但现阶段S油田尚未形成相适应的时移地震解释技术,目前还面临着定量化程度不够、双因素油藏参数变化引起时移地震差异规律认识不清等问题,究其原因是S油田所用的时移地震岩石物理手段研究尚不够成熟,优选出适用的干燥岩石体积模量计算方法对形成可靠的时移地震岩石物理手段非常重要,基于S油田岩石物理测试数据和油藏数据,从预测体积模量与实测体积模量对比、预测体积模量在纵波速度预测方面的应用两个角度开展分析,指出在有效压力大于等于S油田目前最低有效压力时,Macbeth法是四种方法中最优的方法,在提供两个样本的体积模量预测中,最大预测误差绝对值也仅有5.28%,且预测的纵波速度预测误差平均绝对值也只有3.16m/s。实际应用表明Macbeth法针对一定孔隙储层在已知三个压力测量参数情况下具有较好的计算精度。
Abstract:
With the development of advanced offshore acquisition technologies such as OBN,time-shifted seismic data has received more and more attention. Compared with traditional acquisition technologies,advanced acquisition technologies represented by OBN have improved the quality of time-shifted data and provided valuable data for a better understanding of oil and gas reservoirs. However,the S Oilfield still needs to form a suitable time-shifted seismic interpretation technology,which still faces problems such as insufficient quantization and unclear understanding of time-shifted seismic differences caused by the change of dual factor reservoir parameters. The reason is that the research on the time-shifted seismic rock physical means used in the S Oilfield needs to be more mature. It is essential to select a suitable method for calculating the bulk modulus of dry rock to form a reliable time-shifted seismic petrophysical methods. This paper compares the predicted bulk modulus with the measured bulk modulus. It applied the predicted bulk modulus in the longitudinal velocity prediction based on the petrophysical test data and reservoir data of the S Oilfield. It is pointed out that when the effective pressure is greater than or equal to the current minimum effective pressure of the S Oilfield,the Macbeth method is the optimal method among of the four methods. In the bulk modulus prediction with two samples,the maximum absolute value of prediction error is only 5.28%,and the average absolute value of prediction error of longitudinal wave velocity is only 3.16m/s. The practical application shows that the Macbeth method has good calculation accuracy for a specific pore reservoir with three known pressure measurement parameters.

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备注/Memo

备注/Memo:
收稿日期:2023-09-06;改回日期:2023-10-29。
第一作者简介:史瑞其(1986—),工程师,硕士,主要从事地震储层预测、波动方程正反演工作。E-mail:shirq@cnoocinternational.com。
基金项目:中国海洋石油集团有限公司“十四五”重大科技项目“‘两岸一带’重点区勘探开发地球物理关键技术(KJGG2022-0903)”。
更新日期/Last Update: 2024-02-06