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Characteristics and Genesis of the Inherited-Fracture Conglomerate Reservoir: Taking the Lvda 29-A Structure as an ExampNormal access

Authors: C. Feng, C. Niu, Q. Wang, X. Du, M. Zhao, Z. Han and G. Xiao
Event name: 80th EAGE Conference and Exhibition 2018
Session: Poster: Reservoir Characterization A
Publication date: 11 June 2018
DOI: 10.3997/2214-4609.201801283
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 642.72Kb )
Price: € 20

Summary:
The glutenite reservoir of the second member of Shahejie formation in Luda 29-A structure is the first high quality fractured reservoir with origin of non-tectonic in Bohai. Its reservoir formation is complex and special. The reservoir physical properties, reservoir space and genesis of the second member of Shaheji formation in Luda 29-A structure are studied comprehensively by means of casting slices, holoclastic rock analysis, clay analysis, SEM and image mosaics. The results show that the reservoir is mainly glutenite and argillaceous glutenite and has the characteristics of low porosity and middle permeability. The types of reservoir space is mainly the gravel seam and matrix shrinkage crack, belonging to reservoir is pore- fractured reservoir. The micro fracture in the gravel is the corrosion fracture rather than the structural fracture. The genesis of the inherited fracture conglomerate reservoir are studied,whichhas important reference value for exploration evaluation and reservoir prediction of the glutenite reservoir .


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