储层天然裂缝形成机制的初步研究——以静北潜山油藏为例

单业华; 葛维萍

doi:10.11781/sysydz200104457

储层天然裂缝形成机制的初步研究——以静北潜山油藏为例

doi: 10.11781/sysydz200104457

单业华¹,
葛维萍²

1.
青岛海洋大学海洋地质系, 山东, 青岛, 266003
2. 辽河石油管理局沈阳采油厂, 辽宁, 新民, 110316

基金项目: 山东省自然科学基金(Y98E08078)

详细信息

作者简介:
单业华(1968- ),男(汉族),福建三明人,博士、副教授,主要从事储层裂缝描述和构造过程数值模拟工作.

中图分类号: TE122.2
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- 被引次数: 0
出版历程
- 收稿日期: 2000-10-10
- 修回日期: 2001-10-10
- 刊出日期: 2001-10-25

A PRELIMINARY STUDY ON THE FORMATION MECHANISMS OF NATURAL FRACTURES IN RESERVOIRS:AN EXAMPLE FROM JINGBEI BURIED-HILL POOL, NORTH OF CENTRAL LIAONING PROVINCE

SHAN Ye-hua¹,
GE Wei-ping²

1.
Department of Marine Geology, Ocean University of Qingdao, Qingdao, Shandong 266003, China
2. Shenyang Oil Production Factory, Liaohe Petroleum Administration Bureau, Xinmin, Liaoning 110316, China

摘要

摘要: 储层天然裂缝形成机制多种多样,不同机制产生的裂缝分布不尽相同.经常遇到的情形是裂缝总体由同期或不同期的多种机制形成.文中提出评价裂缝形成机制的一种新思路:由地质分析提出各种可能的主导裂缝形成机制,建立一级近似预测初期产量的线型裂缝分布模型,然后根据有关的生产数据求解上述模型,获得评价各种机制的信息.静北潜山裂缝性油藏的应用表明,卸荷和断层活动是该油藏储层裂缝的两种重要形成机制,所形成的裂缝在涉及范围内表现出相对的均匀分布,裂缝密集、遍布和不规则的特征直接与多期次和多方向的强烈断层作用有关.
- 天然裂缝 /
- 形成机制 /
- 分布 /
- 油藏描述
Abstract: There are a variety of formation mechanisms for the natural fractures in reservoirs.The fracture distributions produced by different mechanisms are not the same.It is usual that fractures on the whole are formed by many kinds of mechanisms in the same period or in different periods.In this paper,a new train of thought is suggested about evaluation on the formation mechanisms of fractures.Based on geological analyses,various possible formation mechanisms of dominant fractures are put forward,and a ling-typed fracture distribution model to predict initial production first-order approximately is established.Then,the sdution of the model is found according to related production data,and the information used in the evaluation of each mechanism is obaained.The application in Jingbei buried-hill fracture pool reveals that unloading and fault activities are two major formation mechanisms of reservoir fractures in this pool,the formed fractures show relatively even distribution in related range and close,wide and irregular features of fractures are directly related to the strong faulting of mang stages and directions.
- natural fractures /
- formation mechanisms /
- distribution /
- pool description

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参考文献(18)

[1]	Groshong R H.Low-temperature deformation mechanisms and their interpretation[J].Geol Soc Am,1988,1888-1988 Centennial Article:337-368.
[2]	Engelder T.Loading paths to joint propagation during a tectonic cycle:an example from Appalachian Plateau,USA[J].J Struct Geol,1985,7:459-476.
[3]	Pollard D D,Aydin A.Progress in understanding jointing over the past century[J].Geol Soc Am Bull,1988,100:1 181-1 204.
[4]	Nelson R A.Geological analysis of fractured reservoirs[A].Development in Petroleum(Series 12)[M].Gulf Publishing Company,1991.
[5]	Van Golf-Ract T D.Fundamentals of Fractured Reservoir Engineering[M].Elsevier Scientific Publishing Company,1982.
[6]	王允诚,周文,朱永铭,等.裂缝性储集层[M].北京:地质出版社,1992.252.
[7]	Cruikshank K M,Aydin A.Unweaving the joints in Entrada sandstone,Arches National Park,Utah,USA[J].J Struct Geol,1995,17:401-421.
[8]	Pollard D D,Segall P.Theoretical displacements and stresses near fractures in rock with applications of faults,joints,veins,dikes,and solution surfaces[A].Alkinson B R.Fracture Mechanics of Rocks[M].1987.277-349.
[9]	Magara K.Mechanisms of natural fracturing in a sedimentary basin[J].AAPG Bull,1980,64:123-132.
[10]	Marquez X M,Mountjoy E W.Microfractures due to overpressures caused by thermal cracking in well-scaled Upper Devonian reservoirs,deep Alberta basin[J].AAPG Bull,1996,80(4):570-588.
[11]	Zoback M L,Zoback M.State of stress in the conterminous United States[J].J Geophys Res,1980,85:6 113-6 156.
[12]	Narr W,Currie J B.Origin of fracture porosity:example from Altamonte Field[J].AAPG Bull,1982,66:1 231-1 247.
[13]	陈国达,等.中国大地构造概要[M].北京:地震出版社,1979.112.
[14]	单业华,葛维萍.辽宁中部静北潜山中元古界储层裂缝型式[J].勘探家,1997,2(2):37-42.
[15]	单业华,葛维萍.重整化群法在静北潜山油藏储层渗透性研究中的应用[J].石油实验地质,2000,22(3):270-275.
[16]	王惠文.偏最小二乘回归方法及其应用[M].北京:国防工业出版社,1999.274.
[17]	陈德钊.多元数据处理[M].北京:化学工业出版社,1998.300.
[18]	单业华,葛维萍.静北潜山油藏小断层模拟[J].石油勘探与开发,1998,26(1):80-83.