基于地震信息的稀井网储层建模研究
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摘要
针对稀井网区不能采用地质统计学的方法进行高精度储层建模的问题,提出基于地震资料为约束条件的储层建模思路。其主要依据三维地震解释资料和测井重构约束地震反演的预测结果,对储层砂体井间分布和储层物性变化规律进行预测,在预测成果的约束下,采用随机建模的方法,建立储层三维地质模型。经过现场生产的检验,采用这种建模思路建立的模型能够达到油气田开发阶段的精度要求。
Because the geographical statistics cannot be used in the sparse well net area for the reservoir bed modeling of high accuracy,the paper proposes the modeling thinking of reservoir bed based on taking seismic data as constraint condition.The modeling,depending mainly on the three dimensional seismic explanation information and the prediction results of seismic inversion restricted by logging reconstruction,predicts the distribution of the reservoir sand in the well and the variation law for the physical properties of the reservoir bed to build the three dimensional model of the reservoir bed under the constraint of the prediction results by means of random modeling.This model can help to reach the required accuracy degree at the oil and gas field development stage through the onsite check,meanwhile,and provides a very good reference to the precise evaluation for the reservoir bed in the sparse well net area.
Because the geographical statistics cannot be used in the sparse well net area for the reservoir bed modeling of high accuracy,the paper proposes the modeling thinking of reservoir bed based on taking seismic data as constraint condition.The modeling,depending mainly on the three dimensional seismic explanation information and the prediction results of seismic inversion restricted by logging reconstruction,predicts the distribution of the reservoir sand in the well and the variation law for the physical properties of the reservoir bed to build the three dimensional model of the reservoir bed under the constraint of the prediction results by means of random modeling.This model can help to reach the required accuracy degree at the oil and gas field development stage through the onsite check,meanwhile,and provides a very good reference to the precise evaluation for the reservoir bed in the sparse well net area.
引文
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[12]李磊,王英民.混合地震反演技术及其在东海南部陆架盆地中的应用[J].中国石油大学学报:自然科学版,2007,31(5):28-34.
[2]杜启振,候加根.储层随机建模综述[J].世界石油科学,1997(5):24-29.
[3]姚军辉,游秀玲.油藏描述中的建模技术[J].石油与天然气地质,1997,18(1):34-38.
[4]李少华,尹艳树,张昌民.储层随机建模系列技术[M].北京:石油工业出版社,2007:1-14.
[5]张团峰,王家华.储层随机建模和随机模拟原理[J].测井技术,1995,19(6):391-397.
[6]刘文岭.地震约束储层地质建模技术[J].石油学报,2008,29(1):64-68.
[7]姜岩,李纲,刘文岭.基于地震解释成果的地质建模技术及应用[J].大庆石油勘探与开发,2004,23(5):115-117.
[8]张明功,任孟坤.储层建模在濮城油田油藏描述中的应用[J].断块油气田,2009,16(1):48-50.
[9]董震,潘和平.声波测井资料与地震属性关系研究综述[J].工程地球物理学报,2007,4(5):488-494.
[10]穆龙新,贾文瑞.建立定量储层地质模型的新方法[J].石油勘探与开发,1994,21(4):82-86.
[11]吕晓光,杜庆龙.井间参数预测方法的适用性探讨[J].大庆石油地质与开发,1995,14(4):46-51.
[12]李磊,王英民.混合地震反演技术及其在东海南部陆架盆地中的应用[J].中国石油大学学报:自然科学版,2007,31(5):28-34.
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