MASTER CONTROLLING FACTORS AND GENETIC MODE OF OOLITIC SHOAL RESERVOIR DEVELOPMENT IN FEIXIANGUAN FORMATION NORTHEASTERN SICHUAN BASIN
Received date: 2006-12-15
Revised date: 2007-02-02
Online published: 2008-06-20
In recent years, the oolitic shoal gas reservoir in the Feixianguan Formation in fonnortheastern Sichuan basin is an important exploration target. The reservoir rocks include contain oolitic limestone, micritic dolomite and residual oolitic dolomite, of them the residual oolitic dolomite is the best reservoir. The pore space consists of intergranular pore, intergranular dissolvedpore, intragranular dissolved pore, intercrystalline pore, moldic pore and fracture. The gas reservoir is a fractured and porous reservoir with low porosity and low permeability. The development of the reservoir is controlled by sedimentary facies, dolomitization, corrosion and fractures. High grade reservoir is the fringing oolitic beach undergone mixed water dolomitization and burial corrosion(Primary pores produced in the early period of fringing oolitic beach sediment were completely destroyed by compaction and cementation, and lots of secondary pores were produced by the mixed water dolomitization and burial corrosion.
YANG Wei;WEI Guo-qi;JIN Hui;ZHANG Lin;SHEN Jue-hong;WU Shi-xiang . MASTER CONTROLLING FACTORS AND GENETIC MODE OF OOLITIC SHOAL RESERVOIR DEVELOPMENT IN FEIXIANGUAN FORMATION NORTHEASTERN SICHUAN BASIN[J]. Natural Gas Geoscience, 2007 , 18(2) : 192 -196 . DOI: 10.11764/j.issn.1672-1926.2007.02.192
[1]王一刚,刘划一,文应初,等.川东飞仙关组鲕滩储层分布规律勘探方法 与远景预测[J].天然气工业,2002,22(增刊):14-19.
[2] 杨雨,文应初.川东北开江-梁平海槽发育对T1f鲕粒岩分布的预测[J].天然 气工业,2002,22(增刊):30-32.
[3] 魏国齐,杨威,张林,等.川北飞仙关组鲕滩储层白云石化成因模式[J].天然气地球科学,2005,16(2):162-166.
[4] 魏国齐,陈更生,杨威,等.覆盖区碳酸盐岩层序界面的识别和应用[J].石油勘探与开发,2003,30(6):68-71.
[5] 魏国齐,陈更生,杨威,等.川北下三叠统飞仙关组“槽台”沉积体系及演化[J]. 沉积学报,2004,22(2):254-260.
/
〈 |
|
〉 |