西安石油大学学报（自然科学版）2024，Vol.39Issue(1)：12-22,11.DOI:10.3969/j.issn.1673-064X.2024.01.002
海塔盆地W次凹砂砾岩储层次生孔隙特征及成因
Characteristics and Formation Mechanism of Secondary Pore in Glutenite Reservoir,W Subsag,Haita Basin
摘要
Abstract
In recent years,many high-yield wells have been found in glutenite reservoir of Tongbomiao formation in W subsag of Haita Basin.But there is great difference in oil test production of exploration and evaluation wells,and the development effect of the test area is poor.In order to determine the main controlling factors of physical properties of the glutenite reservoir and predict the distribution of high quality reservoirs,by comparing the rock types and pore development characteristics of the glutenite reservoirs of Tongbomiao For-mation in T sag,it is concluded that the development degree of secondary pores is the main factor affecting the development effect.Sedi-mentary type,rock characteristics,diagenetic stage,acid/alkaline fluid and unconformity leaching are the main factors controlling the development of secondary pores.The glutenite reservoir of Tongbomiao Formation has experienced many cycles of unconformaity leac-hing,organic acid dissolution,alkaline formation water dissolution and other secondary dissolution processes.The evolution of the reser-voir space of the glutenite under the sand-bearing background of Haita Basin in Tongbomiao period is clarified,and the near fault zone and the slope uplift areas are determined as the secondary pore development zones under the background of annular trough near source and denudation unconformity.关键词
砂砾岩储层/铜钵庙组/次生孔隙/成因模式/海塔盆地Key words
glutenite reservoir/Tongbomiao formation/secondary pore/genetic mode/Haita Basin分类
能源科技引用本文复制引用
南金浩,刘少然,孙贻铃,孔凡顺,于东旭,林彤..海塔盆地W次凹砂砾岩储层次生孔隙特征及成因[J].西安石油大学学报（自然科学版）,2024,39(1):12-22,11.基金项目
国家科技重大专项课题"大型岩性油气藏形成主控因素与有利区带评价"(2017ZX05001-002) （2017ZX05001-002）
