万俭英,王始波,赵秋枫,汪清源,张世祥
WAN Jian-ying,WANG Shi-bo,AHAO Qiu-feng,WANG Qing-yuan,ZHANG Shi-xiang(Exploration and Development Research Institute of Daqing Oilfield Company Limited

• 1:大庆油田有限责任公司勘探开发研究院
• 2:大庆油田有限责任公司勘探开发研究院
• 3:大庆油田有限责任公司勘探开发研究院
• 4:大庆油田有限责任公司勘探开发研究院

摘要(Abstract)：

大庆长垣及以西地区下白垩统泉头组三、四段扶杨油层油气资源潜力较大,是大庆油田近年来后备储量的主要来源。但是,单井石油产能低,储量丰度低,直接影响了探明储量的升级及开发。为此,迫切需要开展直接影响产能的储层特征研究,以寻找高丰度储量区块。该文就是针对大庆长垣及以西地区下白垩统泉头组三、四段扶杨油层,在层序地层和沉积相研究的基础上,系统地研究了储层特征。研究区储层主要为三角洲平原分流河道及三角洲前缘水下分流河道砂体;河道砂体单层厚度小,岩石颗粒细;砂岩总体上为低渗透储层;砂体的埋深和沉积类型是储层物性的主控因素,溶蚀孔隙可以改善砂岩物性;齐家-古龙凹陷周边为较有利、有利储层发育区,是下一步勘探及发现高丰度储量的重点目标区。
The hydrocarbon potential in Fuyang oil layer of lower Cretaceous Q3 and Q4 Member in Daqing placanticline and the area to its west is relatively great,and it is the main candidate reservoir for Daqing oilfield in recent years.However,due to low productivity of single well and low reserves abundance,the development of discovered reserves is affected.So,it is necessary to study on reservoir characteristics,which affect the productivity directly,to seek for blocks with high reserves abundance.Focus on Fuyang oil layer in lower Cretaceous Q3 and Q4 Member of Daqing placanticline and area to its west,this paper systematically studies the reservoir characteristics on the basis of sequence stratigraphy and sedimentary facies.The reservoirs in the study area are mainly delta plain distributary channel sand body and delta front underwater distributary channel sand body.The sand body has small individual layer thickness with fine rock particles,the sandstone belongs to low permeability layer,the buried depth of sand body and sedimentary types are the main dominant factors for reservoir physical properties,and dissolution pores can improve the physical properties of sandstone.The area around Qijia-Gulong depression is relative fine reservoir development region,which is the main target for further exploration to discover high abundance reserves.

关键词(KeyWords)： 大庆长垣及以西;扶杨油层;储层特征;河道砂体;物性及影响因素;有利储层
Daqing placanticline and area to its west;Fuyang oil layer;reservoir characteristics;channel sand;physical property and influential factors;favorable reservoir

Abstract:

Keywords:

基金项目(Foundation): 国家“十五”重大科技攻关项目“中国东部岩性油气藏地质评价和关键技术研究”(2003BA613A)最终研究成果

作者(Author): 万俭英,王始波,赵秋枫,汪清源,张世祥
WAN Jian-ying,WANG Shi-bo,AHAO Qiu-feng,WANG Qing-yuan,ZHANG Shi-xiang(Exploration and Development Research Institute of Daqing Oilfield Company Limited

参考文献(References)：

• [1]魏魁生,徐怀大,叶淑芬,等.松辽盆地白垩系高分辨率层序地层格架[J].石油与天然气地质,1997,18(1):7-14.
• [2]高瑞祺,蔡希源.松辽盆地大油田形成条件与分布规律[M].北京:石油工业出版社,1997.
• [3]李延平,陈树民,宋永忠,等.大庆长垣及以东泉三、四段扶杨油层浅水湖泊-三角洲体系沉积特征[J].大庆石油地质与开发,2005,24(5):13-16.
• [4]黄福堂,冯子辉.松辽盆地中生界砂岩次生孔隙形成条件及预测[J].大庆石油地质与开发,1999,18(1):1-4.
• [5]王成,邵红梅.大庆长垣以西地区中部油层组合次生孔隙研究[J].大庆石油地质与开发,1999,18(5):5-7.