Lacustrine mudrocks are composed of minerals and organic matter (OM). The origin preservation OM two controlling factors the hydrocarbon generation capacity mudrocks. It is a key method in source rock research to study deposition process from view sedimentary environment. Following this idea, reason for discrepancy production between northern southern part Dongpu Sag analyzed discussed. lacustr...

The late Miocene sandstone intrusions of northern Santa Cruz County, California, are the largest subaerial exposures of clastic intrusions on earth. The intrusions are sourced from a sandstone, underlying mudstone, accumulated in an outer shelf to upper slope environment. Dikes are the most frequent intrusion type, reach the greatest thickness and tend to strike north-east and dip steeply. One ...

Mudstone, a common complex medium in oil and gas reservoirs with widely distributed micro-pore micro-fissures, is liable to produce significant damage evolution plastic deformation under high buried depth stress environments. Based on the analysis of physical characteristics, elastoplastic coupling mechanical characteristics mudstone reservoir for engineering are discussed. Firstly, conventiona...

Mudstone is supposed to behave as suitable caprock due its low permeability, and also known show semipermeable membrane characteristics. Therefore, better understandings on the coupled processes among groundwater flow, solute transport, deformation of mudstone are highly warranted. In this study, laboratory-scale experiment was conducted by using a sample collected from Tokamachi, Niigata Prefe...

The fossil calvaria known as the Mojokerto child's skull was discovered in 1936, but uncertainties have persisted about its paleoenvironmental context and geological age because of difficulties in relocating the discovery site. Past relocation efforts were hindered by inaccuracies in old base maps, intensive post-1930s agricultural terracing, and new tree and brush growth. Fortunately geologic ...

The middle Cretaceous Colorado Group of the Western Canadian Sedimentary Basin consists predominantly of mudstone deposited during major marine inundations interspersed with relatively thin sandstone and conglomerate beds. The Colorado Group petroleum system, containing a large portion of the light-medium oil and natural gas reserves within the Middle Jurassic to Cretaceous foreland basin succe...

Flow unit and reservoir rock type identification in carbonates are difficult due to the intricacy of pore networks caused by facies changes diagenetic processes. On other hand, these classifications necessary for understanding a predicting its production performance face any activity. The current study focuses on flow classification Mishrif Iraq's southeast is based data from five wells that pe...