Title: Hydrocarbon reservoir forming characteristics and distribution rule of Hailar Basin
Abstract: Hailar Basin is a complicated down faulted basin,which interior develops three sets of hydrocarbon source rocks with larger thickness and high content of organic matter. Under the regional cap rock of Damoguaihe Formation,many sets of source-reservoir-cap rock association are developed. Reservoir type mainly consists of basement rock weathering crust and fractures,Xinganling group tuff, tuffaceous sandy-conglomeratic reservoir,Tongbomiao Formation conglomerate,South No.1 member sandy-conglomerate,South No.2 member siltstone-fine sandstone,clastic rock reservoirs.Anticlinal oil and gas reservoirs, fault block oil and gas reservoirs, metamorphic clastic rock buried hill reservoirs,lithologic reservoirs are developed.The oil and gas distribution rule is two flanks of the main oil gereration depression are a oil and gas favourable abundance zone and oil and gas distribution is controlled by unconformity surface.The most enrichment zone is above and under the surface.Major fracture,controlling faulted structure,especially the structure controlled by transmission faulted zone of the depression is the favourable area and belt of oil and gas accumulation. Lowstand fan and lowstand wedge formed in the lowstand system tract and fan deltaic sand body deposited in the highstand system tract are oil and gas enrichment areas. Downthrow blocks of Sudeerter structural belt,Beixi slope belt,Bayantara structural belt,Wubei depression lithologic belt are the favourable exploration areas.
Publication Year: 2004
Publication Date: 2004-01-01
Language: en
Type: article
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Cited By Count: 8
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