Browsing by Author "HASAN, NAZMUL"

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    INTEGRATED RESERVOIR MODELING OF SALDA NADI GAS FIELD
    (2023-02) ALOM, ASHRAFUL; HASAN, NAZMUL
    The Integrated Reservoir Modeling of Shaldanadi Gas Field using Petrel software is a study aimed at improving the understanding of the reservoir characteristics and behavior of the Shaldanadi Gas Field. The modeling was carried out using Petrel, a powerful and widely used software in the oil and gas industry. The study utilized various techniques such as geophysical analysis, stratigraphic modeling, structural modeling, poperty modeling, well engineering of the reservoir. The working strategy includes geological works, engineering knowledge (well engineering, petrophysical analysis), fluid properties etc. By this integrated reservoir simulation static model, velocity model, porosity modeling, permeability modeling etc. The reservoir is devided into numbers of grid cell and each cell shows the gradual changing in porosity, permeability and other petrophysical properties. The gas-water contacts of each zone are also shown. After all, the findings of the study provide important insights into the reservoir behavior and could be used to support future decision making and operational activities in the Shaldanadi Gas Field.
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    STUDY ON HEALTH QUALITY OF JUTE SEEDS AND TRANSMISSION BEHAVIOR OF Colletotrichum corchori FROM SEED TO PLANT TO SEED
    (Department of Plant Pathology, 2013-12) HASAN, NAZMUL
    Altogether 600 seed samples of jute of CVL-1 of four seed tires namely breeder seed (15), foundation seed (5), certified seed (7) and farmers‟ seeds (573) were tested in the laboratory of the Department of Plant Pathology, BJRI during October, 2010 to April, 2012. Seed samples were categorized on the basis of presence of Colletotrichum corchori as 0%, 5%, 10%, 15%, 20% and 25%. Germination of the collected seed samples found to be varied significantly. The highest germination (96.00%) was recorded in breeder seeds and the lowest (67.33%) was in farmers‟ seeds. In seedling symptom test, the highest (96.00%) and the lowest germination (73.00%) were recorded in case of seeds having 0.00% and 25% initial seed borne infection of C. corchori, respectively. Incidence of anthracnose increased with the increase of time. Seeds having higher level of seed infection with pathogens caused higher reduction of seed germination. Lower germination was recorded at higher prevalence of initial seed borne infection by C. corchori. Negative co-relationships between initial seed borne infection of C. corchori and seed yield parameters of harvested seeds were observed. Relationships between % seed germination and % total presence of pathogens in the seed was negative. Germination of the harvested seeds lowered with the increase of initial seed borne infections of C. corchori. Seed borne infection by C. corchori in harvested seeds increased with the increase of initial seed borne infection of C. corchori. Seed yield decreased with the increase of initial seed borne infection of C. corchori. Positive co-relationship between initial seed borne infection by C. corchori and seed borne infection in harvested seeds both at greenhouse and under field conditions proof the transmission of C. corchori from seed to plant to seed as a seed borne pathogen.