碳酸盐岩台内滩储层沉积特征、分布规律及主控因素研究:以阿姆河盆地台内滩气田为例
发布时间：2019-04-02 06:22
【摘要】：近年来,台内滩成为碳酸盐岩油气勘探的重点领域,并取得了一系列重大进展。本文以阿姆河盆地右岸地区中上侏罗统碳酸盐岩台内滩气田为例,在地震、测井、录井、岩心、薄片及分析化验等资料详细研究的基础上,对台内滩类型、沉积特征及储层特征进行了分析,并重点研究了影响台内滩储层发育及分布的控制因素。结果表明:(1)研究区台内滩主要包括生屑滩、内碎屑滩、球粒滩、藻粒滩和鲕粒滩等5种类型。(2)剩余原生粒间孔,次生的粒间、粒内溶孔及溶蚀孔洞为主要储集空间,形成以孔隙型和孔洞型为主的两类台内滩储层。(3)储层发育及分布明显受古地貌、相对海平面变化及溶蚀作用等多种因素控制:(1)古地貌是台内滩发育的重要基础,在基底古隆起发育的古地貌高部位滩体连片分布,形成规模型台内滩储集体;(2)相对海平面变化对台内滩储层的发育层位及滩体类型具有重要的控制作用,台内滩储层主要发育于高位域准层序组中上部,由下至上呈现出厚度增大、物性变好等特征,海平面高频震荡导致台内滩垂向上多期叠置;(3)包括同生期淡水淋滤及埋藏期溶蚀等多期次、多类型溶蚀作用是台内滩储层形成的关键,次生溶蚀孔隙、孔洞成为台内滩重要的储集空间,最终形成优质的孔隙(洞)型台内滩储层。
[Abstract]:In recent years, Taitai beach has become the key field of carbonate oil and gas exploration, and has made a series of important progress. Taking the inner beach gas field of the Middle and Upper Jurassic carbonate platform in the right bank area of Amhe Basin as an example, based on the detailed study of seismic, logging, core, thin slice and analytical laboratory data, this paper makes a detailed study of the inner beach type of the platform. The sedimentary and reservoir characteristics are analyzed, and the controlling factors affecting the development and distribution of the reservoir in the platform are mainly studied. The results show that: (1) the inner beach of the study platform mainly includes 5 types: raw debris beach, inner debris beach, ball beach, algae beach and oolitic beach. (2) residual primary intergranular pore, secondary intergranular pore, and so on. Intragranular dissolution pores and corrosion pores are the main reservoir spaces, forming two types of reservoirs in the platform, which are mainly pore type and pore type. (3) the development and distribution of reservoirs are obviously affected by paleogeomorphology. Relative sea-level change and dissolution are controlled by many factors such as: (1) Palaeogeomorphology is an important basis for the development of the platform, and the beach body is distributed in the high part of the paleo-geomorphology developed by the basement paleo-uplift, forming the beach reservoir in the model platform; (2) the change of relative sea level plays an important role in controlling the development horizon and beach type of Taitang reservoir. The reservoir mainly develops in the middle and upper parts of the high-level quasi-sequence formation, showing the characteristics of increasing thickness and improving physical properties from the bottom to the top, and so on. High-frequency sea-level oscillation leads to vertical overlaying of the beach in the platform; (3) it includes many times, such as fresh water leaching in syngenetic period and dissolution in buried period. Multi-type dissolution is the key to formation of Taitantan reservoir, secondary dissolution pore and pore become important reservoir space in Taitai beach, and the secondary dissolution pore is the key to the formation of Taitang reservoir, and the secondary dissolution pore is the most important reservoir space. Finally, the formation of high-quality pore (hole)-type platform beach reservoir.
【作者单位】： 振华石油控股有限公司;中国石油勘探开发研究院;中国石油天然气勘探开发公司;
【基金】：国家重大科技专项“中亚地区含气盆地成藏规律与勘探技术”(2011ZX05029-003) 中国石油天然气集团公司科学研究与技术开发项目“阿姆河右岸盐下天然气分布规律与区带评价”(2013D-0904)
【分类号】：P618.13
，
本文编号：2452328
[Abstract]:In recent years, Taitai beach has become the key field of carbonate oil and gas exploration, and has made a series of important progress. Taking the inner beach gas field of the Middle and Upper Jurassic carbonate platform in the right bank area of Amhe Basin as an example, based on the detailed study of seismic, logging, core, thin slice and analytical laboratory data, this paper makes a detailed study of the inner beach type of the platform. The sedimentary and reservoir characteristics are analyzed, and the controlling factors affecting the development and distribution of the reservoir in the platform are mainly studied. The results show that: (1) the inner beach of the study platform mainly includes 5 types: raw debris beach, inner debris beach, ball beach, algae beach and oolitic beach. (2) residual primary intergranular pore, secondary intergranular pore, and so on. Intragranular dissolution pores and corrosion pores are the main reservoir spaces, forming two types of reservoirs in the platform, which are mainly pore type and pore type. (3) the development and distribution of reservoirs are obviously affected by paleogeomorphology. Relative sea-level change and dissolution are controlled by many factors such as: (1) Palaeogeomorphology is an important basis for the development of the platform, and the beach body is distributed in the high part of the paleo-geomorphology developed by the basement paleo-uplift, forming the beach reservoir in the model platform; (2) the change of relative sea level plays an important role in controlling the development horizon and beach type of Taitang reservoir. The reservoir mainly develops in the middle and upper parts of the high-level quasi-sequence formation, showing the characteristics of increasing thickness and improving physical properties from the bottom to the top, and so on. High-frequency sea-level oscillation leads to vertical overlaying of the beach in the platform; (3) it includes many times, such as fresh water leaching in syngenetic period and dissolution in buried period. Multi-type dissolution is the key to formation of Taitantan reservoir, secondary dissolution pore and pore become important reservoir space in Taitai beach, and the secondary dissolution pore is the key to the formation of Taitang reservoir, and the secondary dissolution pore is the most important reservoir space. Finally, the formation of high-quality pore (hole)-type platform beach reservoir.
【作者单位】： 振华石油控股有限公司;中国石油勘探开发研究院;中国石油天然气勘探开发公司;
【基金】：国家重大科技专项“中亚地区含气盆地成藏规律与勘探技术”(2011ZX05029-003) 中国石油天然气集团公司科学研究与技术开发项目“阿姆河右岸盐下天然气分布规律与区带评价”(2013D-0904)
【分类号】：P618.13
，
本文编号：2452328
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