Ulmus pumila open forest ecosystem plays an important role in Otindag Sandy Land.

Ulmus pumila open forests have extensive distribution in the Otindag Sandy Land, which are important for lightening sandstorm.

Elm sparse woods is a climax community distributed on the sandland in temperate steppe zone.

Reservoir characters of Pu taohua layers of Yushulin oilfield in Songliaobasin;

Characteristics of Diagenesis of Fuyang Reservoir in Yushulin Oilfield;

Radius of scale removal in injectors of Yushulin Oilfield;

Microporous structures and seepage regimes of the low-permeable reservoir beds in the Yushulin Oil Field, Heilongjiang;

This Paper performs an experimental study on the low permeable rock sample in Yushulin Oil Field using a two phase seepage formulas which can describe the water flooding seepage rule in reservoir rock sample of ultra low reservoirs and compares the result with the measurement with original calculating method.

This paper takes Yushulin Oil Field, which is a super low permeable lithologic reservoir in the peripheral part of Daqing Oil Field, as an example and uses the geologic profiling of oil bearing sand body to propose a set of random simulation pattern optimized arrangement which is suitable for narrow channel sand bod

According to the exploration degree in Yushulin area the reservoir size sequence method is applied to evaluate its resource in order to improve the accuracy of resource assessment, which is more practical, and which most advantage is that the accuracy is increasing with the exploration degree.