金龙2井区火山岩储层特征及影响因素
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摘要
为进一步了解金龙2井区火山岩储层特征,利用岩心、薄片、测井、储层物性及试油资料,对该区火山岩岩性、岩相、储集空间、物性特征等进行总结,在此基础上探讨了储层的影响因素。结果表明:佳木河组主要包括火山碎屑岩类和熔岩类2种类型,发育3个期次、4种岩相类型,纵向上爆发相与溢流相间互发育,平面上呈北西—南东向带状分布,第3期爆发相内的火山碎屑岩类为最有利储层;储集空间类型多样,主要有气孔、杏仁体内溶孔及高角度裂缝,储层物性总体较差,平均孔隙度、渗透率分别为10. 55%、0. 26 mD,具有低孔、低渗—特低渗的特征,储层非均质性强;火山岩储层受岩性、岩相、高角度裂缝、风化淋滤及溶蚀作用综合控制,其中,岩性与岩相是储层物性的主要影响因素,高角度裂缝、断裂和古构造控制的风化淋滤及溶蚀作用对储层有一定改善作用。该研究结果为研究区火山岩勘探开发奠定了地质基础。
In order to further understand the characteristics of volcanic reservoir in wellblock Jinlong 2,the core,slice,well logging,reservoir property and well test data were used to summarize the volcanic lithology,lithofacies,reservoir space and physical characteristics in this area,and on the basis of which,the influential factors of reservoir were discussed. The study results show that the Jiamuhe Formation mainly consists of volcaniclastic rock and lava developed at 3 stages in 4 lithofacies; the eruption facies and effusive facies are alternately developed in vertical direction,exhibit NW-SE zonal distribution horizontally,and the volcaniclastic rock in the third stage of eruption facies is the most favorable reservoir; the reservoir space type is diverse,mainly consists of vesicle,dissolved pore in amygdaloid and high angle fracture,the reservoir property is poor as a whole,the average porosity and permeability are 10.55% and 0.26 mD respectively,characterized by low porosity and permeability-ultra low-permeability and strong heterogeneity; the volcanic reservoir is controlled by lithology,lithofacies,high angle fracture,weathering leaching and denudation,among which,the lithology and lithofacies are the main influential factors of reservoir properties,and the weathering leaching and denudation controlled by high angle fractures,faults and paleostructures improve the reservoir to some extent. The study results have laid a geological foundation for the exploration and development of volcanic reservoirs in the study area.
In order to further understand the characteristics of volcanic reservoir in wellblock Jinlong 2,the core,slice,well logging,reservoir property and well test data were used to summarize the volcanic lithology,lithofacies,reservoir space and physical characteristics in this area,and on the basis of which,the influential factors of reservoir were discussed. The study results show that the Jiamuhe Formation mainly consists of volcaniclastic rock and lava developed at 3 stages in 4 lithofacies; the eruption facies and effusive facies are alternately developed in vertical direction,exhibit NW-SE zonal distribution horizontally,and the volcaniclastic rock in the third stage of eruption facies is the most favorable reservoir; the reservoir space type is diverse,mainly consists of vesicle,dissolved pore in amygdaloid and high angle fracture,the reservoir property is poor as a whole,the average porosity and permeability are 10.55% and 0.26 mD respectively,characterized by low porosity and permeability-ultra low-permeability and strong heterogeneity; the volcanic reservoir is controlled by lithology,lithofacies,high angle fracture,weathering leaching and denudation,among which,the lithology and lithofacies are the main influential factors of reservoir properties,and the weathering leaching and denudation controlled by high angle fractures,faults and paleostructures improve the reservoir to some extent. The study results have laid a geological foundation for the exploration and development of volcanic reservoirs in the study area.
引文
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[10]吴晓智,蒋宜勤,李佰华,等.准噶尔盆地西北缘中拐—五八区佳木河组储层主控因素及发育区预测[J].新疆地质,2010,28(2):174-179.
[11]李长山,陈建文,游俊,等.火山岩储层建模初探[J].地学前缘,2000,7(4):381-388.
[12]罗鑫,王维,李亮,等.准噶尔盆地C47井区火山岩优质储层预测[J].特种油气藏,2017,24(3):54-58.
[13]赵宁,石强.裂缝孔隙型火山岩储层特征及物性主控因素———以准噶尔盆地陆东—五彩湾地区石炭系火山岩为例[J].天然气工业,2012,32(10):14-23.
[14]袁云峰,才业,樊佐春,等.准噶尔盆地红车断裂带石炭系火山岩储层裂缝特征[J].岩性油气藏,2011,23(1):47-51.
[15]何辉,李顺明,孔垂显,等.准噶尔盆地西北缘二叠系佳木河组火山岩有效储层特征与定量评价[J].中国石油大学学报(自然科学版),2016,40(2):1-12.
[16]王小军,赵飞,张琴,等.准噶尔盆地金龙油田佳木河组火山岩储层孔隙类型及特征[J].石油与天然气地质,2017,38(1):144-151.
[17]杨荣荣,周路,房涛,等.准噶尔盆地金龙2地区佳木河组古地貌特征和油气藏分布关系研究[J].地球物理学进展,2016,31(5):2219-2225.
[18]赵彦清,薛晓军,范江华,等.准噶尔盆地金龙地区火成岩储集层录井多因素解释评价方法[J].录井工程,2016,27(1):45-49.
[19]陶国亮,胡文瑄,张义杰,等.准噶尔盆地西北缘北西向横断裂与油气成藏[J].石油学报,2006,27(4):23-28.
[20]王璞珺,迟元林,刘万洙,等.松辽盆地火山岩相:类型、特征和储层意义[J].吉林大学学报(地球科学版),2003,33(4):449-456.
[21]黄亮,彭军,周康,等.火山岩储层形成机制研究综述[J].特种油气藏,2009,16(1):1-5.
[22]赵澄林,孟卫工,金春爽,等.辽河盆地火山岩与油气[M].北京:石油工业出版社,1999:56-101.
[2]何辉,孔垂显,蒋庆平,等.准噶尔盆地西北缘二叠系火山岩储层裂缝发育特征及分布预测———以金龙2井区佳木河组为例[J].吉林大学学报(地球科学版),2015,45(5):1278-1288.
[3]黄布宙,潘保芝.松辽盆地北部深层火成岩测井响应特征及岩性划分[J].石油物探,2001,40(3):42-47.
[4]范宜仁,黄隆基,代诗华.交会图技术在火山岩岩性与裂缝识别中的应用[J].测井技术,1999,23(1):53-56.
[5]张莹,潘保芝,印长海,等.成像测井图像在火山岩岩性识别中的应用[J].石油物探,2007,46(3):288-293.
[6]陈钢花,吴文圣,王中文,等.利用地层微电阻率成像测井识别裂缝[J].测井技术,1999,23(4):279-281.
[7]WU H Q,POLLARD D D. Imaging 3-D fracture networksaround boreholes[J]. AAPG Bulletin,2003,86(4):593-604.
[8]朱世发,朱筱敏,吴冬,等.准噶尔盆地西北缘下二叠统油气储层中火山物质蚀变及控制因素[J].石油与天然气地质,2014,35(1):77-85.
[9]范存辉,支东明,秦启荣,等.准噶尔盆地小拐地区佳木河组储层特征及主控因素[J].大庆石油学院学报,2012,36(2):48-52.
[10]吴晓智,蒋宜勤,李佰华,等.准噶尔盆地西北缘中拐—五八区佳木河组储层主控因素及发育区预测[J].新疆地质,2010,28(2):174-179.
[11]李长山,陈建文,游俊,等.火山岩储层建模初探[J].地学前缘,2000,7(4):381-388.
[12]罗鑫,王维,李亮,等.准噶尔盆地C47井区火山岩优质储层预测[J].特种油气藏,2017,24(3):54-58.
[13]赵宁,石强.裂缝孔隙型火山岩储层特征及物性主控因素———以准噶尔盆地陆东—五彩湾地区石炭系火山岩为例[J].天然气工业,2012,32(10):14-23.
[14]袁云峰,才业,樊佐春,等.准噶尔盆地红车断裂带石炭系火山岩储层裂缝特征[J].岩性油气藏,2011,23(1):47-51.
[15]何辉,李顺明,孔垂显,等.准噶尔盆地西北缘二叠系佳木河组火山岩有效储层特征与定量评价[J].中国石油大学学报(自然科学版),2016,40(2):1-12.
[16]王小军,赵飞,张琴,等.准噶尔盆地金龙油田佳木河组火山岩储层孔隙类型及特征[J].石油与天然气地质,2017,38(1):144-151.
[17]杨荣荣,周路,房涛,等.准噶尔盆地金龙2地区佳木河组古地貌特征和油气藏分布关系研究[J].地球物理学进展,2016,31(5):2219-2225.
[18]赵彦清,薛晓军,范江华,等.准噶尔盆地金龙地区火成岩储集层录井多因素解释评价方法[J].录井工程,2016,27(1):45-49.
[19]陶国亮,胡文瑄,张义杰,等.准噶尔盆地西北缘北西向横断裂与油气成藏[J].石油学报,2006,27(4):23-28.
[20]王璞珺,迟元林,刘万洙,等.松辽盆地火山岩相:类型、特征和储层意义[J].吉林大学学报(地球科学版),2003,33(4):449-456.
[21]黄亮,彭军,周康,等.火山岩储层形成机制研究综述[J].特种油气藏,2009,16(1):1-5.
[22]赵澄林,孟卫工,金春爽,等.辽河盆地火山岩与油气[M].北京:石油工业出版社,1999:56-101.
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