克拉玛依油田九区南上侏罗统齐古组沉积微相研究
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摘要
以准噶尔盆地西北缘克拉玛依油田九区南齐古组砾岩低渗透油藏为例,在现代沉积调查和露头沉积剖面调查的基础上,恢复储层沉积原型模型。井点以钻井取心和测井划相为准,井间依靠大量丰富的地震信息,充分利用储层反演与预测结果,开展现代辫状河与九区南部地下相类比,选择典型辫状河露头剖面与之类比,最后建立研究区辫状河沉积储层地质知识库、精细刻划各单油砂体在平面及空间上的微相展布。目的是跟踪研究和指导九区南滚动扩边,并为下一步滚动勘探开发和井网部署提供决策依据。
Taking the conglomerate low permeability oil reservoir of Qigu Formation in southern District 9 of Karamay oilfield in northwest margin of Zhunger basin for example,the reservoir sedimentary model of Qigu formation(J3q) is recovered based on the investigation of modern sediments and sedimentary profiles in outcrops.The recovering work is made according to drilling cores and well logging data for the well spots,and carried out based on rich and plenty of seismic information for the space between wells.With the help of inversion and prediction results on reservoirs,an analogy between modern braided river,including a selected classic outcrop of this river,and subsurface of southern District 9 is made.Finally the geological knowledge base is set up for braided river sedimentary reservoir in the work area,and micro-facies three-dimensional distribution is refinedly divided for each mono-oil sandbody.Its purpose is to follow-up research and guide the rolling expansion of margins in southern District 9,and to provide a decision basis for the next rolling exploration development,and arrangement of well networks.
Taking the conglomerate low permeability oil reservoir of Qigu Formation in southern District 9 of Karamay oilfield in northwest margin of Zhunger basin for example,the reservoir sedimentary model of Qigu formation(J3q) is recovered based on the investigation of modern sediments and sedimentary profiles in outcrops.The recovering work is made according to drilling cores and well logging data for the well spots,and carried out based on rich and plenty of seismic information for the space between wells.With the help of inversion and prediction results on reservoirs,an analogy between modern braided river,including a selected classic outcrop of this river,and subsurface of southern District 9 is made.Finally the geological knowledge base is set up for braided river sedimentary reservoir in the work area,and micro-facies three-dimensional distribution is refinedly divided for each mono-oil sandbody.Its purpose is to follow-up research and guide the rolling expansion of margins in southern District 9,and to provide a decision basis for the next rolling exploration development,and arrangement of well networks.
引文
[1]师永民,霍进,张玉广.陆相油田开发中后期油藏精细描述[M].北京:石油工业出版社,2004:84~87.
[2]董同武,张廷山,霍进,等.克拉玛依油田九区南低电阻率稠油油层成因[J].新疆石油地质,2005,26(3):256~258.
[3]刘家铎,田景春,李琦,等.精细油藏描述中沉积微相研究[J].古地理学报,1999,1(2):36~45.
[4]孙川生,彭顺龙.克拉玛依九区热采稠油油藏[M].石油工业出版社,2000,10.
[2]董同武,张廷山,霍进,等.克拉玛依油田九区南低电阻率稠油油层成因[J].新疆石油地质,2005,26(3):256~258.
[3]刘家铎,田景春,李琦,等.精细油藏描述中沉积微相研究[J].古地理学报,1999,1(2):36~45.
[4]孙川生,彭顺龙.克拉玛依九区热采稠油油藏[M].石油工业出版社,2000,10.
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