层状底水油层开采机理及产能综合研究与应用
|
摘要
陆梁油田陆9井区是2000年中国陆上石油的重大发现之一。其主要含油层系白垩系呼图壁河组和中侏罗系西山窑组。陆梁油田陆9井区总体上为层状底水油藏，其中呼图壁河组油藏：构造幅度低；油层厚度较薄，底水水体厚度差异较大；同一层系的生产剖面可由多个底水油层组合或由底水油层与纯油层组合；每个底水油层都是相对独立的层状砂体。本文针对其特殊的地质特征，系统地研究了底水油层的开采机理；建立了较为精细的地质模型，对陆9井区底水油藏的开发进行了开采机理模拟，揭示了该类油藏的开采特征；并针对呼图壁河组油藏建立了300m反九点井网的井组模型来揭示其开采特征，揭示了陆9井区呼图壁河组底水油藏的产能特征。通过类比不同的产能确定方法，综合确定了各油藏的初期产能。提出了针对不同类型底水油层的开发组合的原则与合理动用的顺序：先动用油层厚度百分数较大的油层；油层厚度百分数相近的油层可一同动用。
本文针对陆9井区呼图壁河组底水薄油层的地质开发特点而确定的油田初期产能，以及相应的开发策略，在现场实际应用中取得了较好的效果。对其它类似砂岩底水薄油层的开发有一定的借鉴意义。
Lu 9 area in Luliang Oilfield is one of the greatest discovery of CNPC in 2000. Its main oil-bearing series are Cretaceous Hutubihe formation and middle Jurassic Xishanyao formation.As a while, Lu 9 area is layered bottomwater reservoir. As for Hutubihe reservoir:the range of its structure is low;the oil layer thickness is thin, the difference of the bottomwater thickness is great;the production profile of the same series is made of many bottomwater oil zones, or bottomwater oil zones and oil zones;each oil layer is relatively islated layered sand body. Aiming to its geologic characteristics, this paper systematically researches the production mechanism of the bottomwater oil zone;by establishing the fine geologic model, the paper does some simulations of the production mechanism about the development of the bottomwater oil zone in Lu9 area, and shows the production feature of the reservoir; and aiming to Hutubihe reservoir, establishing the well model of anti-nine-spot pattern to open out the production fea
ture and illustrate the early productivity. By analysing the different methods of determining productivity, determining the early productivity of the diverse reservoirs. Finally, puttig forward the corresponding development combination principia of the diverse types bottomwater oil zone and the reasonable employing sequence:at first employing the oil zone that the oil thickness percent is high; the oil zone can be employed at the same time, which the oil thickness percent is similar.
The paper determines the early productivity and corresponding development countermeasures of Hutubihe reservoir, the conclusions get good results. The method and strategy can be used to other similar oilfields.
本文针对陆9井区呼图壁河组底水薄油层的地质开发特点而确定的油田初期产能，以及相应的开发策略，在现场实际应用中取得了较好的效果。对其它类似砂岩底水薄油层的开发有一定的借鉴意义。
Lu 9 area in Luliang Oilfield is one of the greatest discovery of CNPC in 2000. Its main oil-bearing series are Cretaceous Hutubihe formation and middle Jurassic Xishanyao formation.As a while, Lu 9 area is layered bottomwater reservoir. As for Hutubihe reservoir:the range of its structure is low;the oil layer thickness is thin, the difference of the bottomwater thickness is great;the production profile of the same series is made of many bottomwater oil zones, or bottomwater oil zones and oil zones;each oil layer is relatively islated layered sand body. Aiming to its geologic characteristics, this paper systematically researches the production mechanism of the bottomwater oil zone;by establishing the fine geologic model, the paper does some simulations of the production mechanism about the development of the bottomwater oil zone in Lu9 area, and shows the production feature of the reservoir; and aiming to Hutubihe reservoir, establishing the well model of anti-nine-spot pattern to open out the production fea
ture and illustrate the early productivity. By analysing the different methods of determining productivity, determining the early productivity of the diverse reservoirs. Finally, puttig forward the corresponding development combination principia of the diverse types bottomwater oil zone and the reasonable employing sequence:at first employing the oil zone that the oil thickness percent is high; the oil zone can be employed at the same time, which the oil thickness percent is similar.
The paper determines the early productivity and corresponding development countermeasures of Hutubihe reservoir, the conclusions get good results. The method and strategy can be used to other similar oilfields.
引文
[1] 金勇等，CB油田泰州组油藏合理生产压差研究，小型油气藏，1999
[2] 葛家理，油气层渗流力学，石油工业出版社，1982
[3] Wheatley, M.J.: "An Approximate Theory of Oil/Water Coning" ,SPE14210
[4] 窦宏恩，水平井开采底水油藏临界产量的计算，石油钻采工艺，1997
[5] Boyun Guo and R.L. Lee,: "A Simple Approach to Optimizationof Completion Interval in Oil/Water Coning Systems",SPE23994
[6] Hoyland, L.A.,Papatzacos, P. and Skjaeveland, S.M.:" Critical Rate for Water Coning:Correlation and Analytical Solution" ,SPE15855
[7] Abass, H.H. and Bass, B.:" The Critical Production Rate in Water-Coning System",SPE17311
[8] Chaney, P.E. etc:" How to Perforate Your Well to Prevent Water and Gas Coning" ,Oil and Gas J, May 7,1956
[9] 黄炳光等，实用油藏工程与动态分析方法，石油工业出版社，1998
[10] 李传亮，修正DUPUIT临界产量公式，石油勘探与开发，1993
[11] M.C.T Kuo:" Correlations rapidly analyae water coning" ,Oil and Gas Journal, 1989, No. 40
[12] 李传亮，带隔板底水油藏油井临界产量计算公式，大庆石油地质与开发，1993．4
[13] 李国庆等，深层砂岩底水油藏改变驱油方向的可行性分析，试采技术，1998
[14] 大港油田科技丛书编委会编，大港油田开发实践，石油工业出版社，1999
[15] 朱圣举等，底水油藏的油井产量与射孔程度及压差的关系，新疆石油地质，2000
[16] 成绥民，王天顺，表皮系数系统分解方法，油气井测试，1992(1)
[17] Sarda, J.P etc:" Use of Porosity as a Strength Indicator for Sand Production Evaluation" ,SPE26454
[18] 邓敦夏，中国石化新星石油公司油气田开发标准汇编，中国石化出版社，2001
[2] 葛家理，油气层渗流力学，石油工业出版社，1982
[3] Wheatley, M.J.: "An Approximate Theory of Oil/Water Coning" ,SPE14210
[4] 窦宏恩，水平井开采底水油藏临界产量的计算，石油钻采工艺，1997
[5] Boyun Guo and R.L. Lee,: "A Simple Approach to Optimizationof Completion Interval in Oil/Water Coning Systems",SPE23994
[6] Hoyland, L.A.,Papatzacos, P. and Skjaeveland, S.M.:" Critical Rate for Water Coning:Correlation and Analytical Solution" ,SPE15855
[7] Abass, H.H. and Bass, B.:" The Critical Production Rate in Water-Coning System",SPE17311
[8] Chaney, P.E. etc:" How to Perforate Your Well to Prevent Water and Gas Coning" ,Oil and Gas J, May 7,1956
[9] 黄炳光等，实用油藏工程与动态分析方法，石油工业出版社，1998
[10] 李传亮，修正DUPUIT临界产量公式，石油勘探与开发，1993
[11] M.C.T Kuo:" Correlations rapidly analyae water coning" ,Oil and Gas Journal, 1989, No. 40
[12] 李传亮，带隔板底水油藏油井临界产量计算公式，大庆石油地质与开发，1993．4
[13] 李国庆等，深层砂岩底水油藏改变驱油方向的可行性分析，试采技术，1998
[14] 大港油田科技丛书编委会编，大港油田开发实践，石油工业出版社，1999
[15] 朱圣举等，底水油藏的油井产量与射孔程度及压差的关系，新疆石油地质，2000
[16] 成绥民，王天顺，表皮系数系统分解方法，油气井测试，1992(1)
[17] Sarda, J.P etc:" Use of Porosity as a Strength Indicator for Sand Production Evaluation" ,SPE26454
[18] 邓敦夏，中国石化新星石油公司油气田开发标准汇编，中国石化出版社，2001
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |