a typical iranian carbonate matrix block surrounded by an open fracture was modeled in order to understand the fracture-matrix interaction and realize how to model the interaction best. the modeling was carried out by using a fine-scaled eclipse model in the single porosity mode (the fractures were explicitly modeled). the model was extended to a stack of 6 matrix blocks to understand block-to-...

Abstract A reasonable displacement method is essential to improve the oil efficiency of tight reservoirs. In this study, three different methods were utilized on core samples obtained from Yanchang Formation Chang 8 and 9 reservoirs: spontaneous imbibition displacement, various water flooding rate after imbibitions; furthermore, utilization degree residual in pores was discussed. The imbibition...

In this paper, we consider the Cauchy problem for a porous medium equation in Fingero-imbibition phenomena arising in double phase flow through porous media during oil recovery process. Fingero-imbibition is a physical phenomenon which represents the simultaneous occurrence of two special phenomenon viz. fingering and imbibitions in a porous media. We obtain a series solution of porous medium e...

In this paper twelve barley (Hordeum vulgare L.) genotypes were screened for salt tolerance during seed germination in the Crop Production Department, Faculty of Agriculture, Jordan University of Science and Technology, Irbid, Jordan. To evaluate salt tolerance during germination, 30 seeds of each genotype were placed on towel paper in 9 cm Petri dishes containing 20 mL distilled water or 1:1 M...

A typical Iranian carbonate matrix block surrounded by an open fracture was modeled in order to understand the fracture-matrix interaction and realize how to model the interaction best. The modeling was carried out by using a fine-scaled Eclipse model in the single porosity mode (the fractures were explicitly modeled). The model was extended to a stack of 6 matrix blocks to understand block-to-...

concerns about nitrate pollution in groundwater and downstream systems cause development of surface water management system to reduce losses of agricultural drainage water nitrate in subsurface drainage using subsurface irrigation from existing drainage lines, drainage water during the growing season and out of season is controlled. the overall objective of this study was to evaluate the effect...