ORCID Profile
0000-0002-2027-8582
Current Organisations
University of Kansas
,
University of the Ryukyus
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Publisher: Springer Science and Business Media LLC
Date: 23-03-2011
DOI: 10.1038/NATURE09831
Publisher: Penerbit UTM Press
Date: 15-04-2020
DOI: 10.11113/MJFAS.V16N2.1343
Abstract: Tight gas reservoirs are unconventional reservoir assets which have been the focus of major research in the petroleum industry owing to the global decline in conventional reservoirs. They are widely unlocked by creating hydraulic fractures in the formation to increase the flow capacity and productivity. The objective of this paper is to analyze different fracture geometries and their effect on tight gas production. The reservoir simulation model of the tight gas reservoir has been built with single porosity approach. A single vertical well with a single stage fracture has been used in the model to predict the behavior of fracture geometry. The major parameters of fracture geometry studied are fracture half-length, fracture width, and fracture height. Four sensitivities are run over different fracture geometry that is constant height and constant width, constant height and changing width, changing height and constant width, and changing height and changing width, while increasing the fracture half-length from 100 ft to 500 ft in each case. Sensitivity analysis exhibited that keeping the hydraulic fracture at constant height and constant width while increasing the fracture half-length resulted in enhanced tight gas productivity i.e. 11.63%, 14.14%, 16.06%, 17.48%, and 18.89% at hydraulic fracture half-lengths of 100 ft, 200 ft, 300 ft, 400 ft, and 500 ft, respectively, compared to other types of fracture geometry.
Publisher: Elsevier BV
Date: 10-2020
Publisher: Wiley
Date: 12-08-2009
DOI: 10.1111/J.1755-0998.2009.02746.X
Abstract: This article documents the addition of 283 microsatellite marker loci to the Molecular Ecology Resources Database. Loci were developed for the following species: Agalinis acuta Ambrosia artemisiifolia Berula erecta Casuarius casuarius Cercospora zeae-maydis Chorthippus parallelus Conyza canadensis Cotesia sesamiae Epinephelus acanthistius Ficedula hypoleuca Grindelia hirsutula Guadua angustifolia Leucadendron rubrum Maritrema novaezealandensis Meretrix meretrix Nilaparvata lugens Oxyeleotris marmoratus Phoxinus neogaeus Pristomyrmex punctatus Pseudobagrus brevicorpus Seiridium cardinale Stenopsyche marmorata Tetranychus evansi and Xerus inauris. These loci were cross-tested on the following species: Agalinis decemloba Agalinis tenella Agalinis obtusifolia Agalinis setacea Agalinis skinneriana Cercospora zeina Cercospora kikuchii Cercospora sorghi Mycosphaerella graminicola Setosphaeria turcica Magnaporthe oryzae Cotesia flavipes Cotesia marginiventris Grindelia Xpaludosa Grindelia chiloensis Grindelia fastigiata Grindelia lanceolata Grindelia squarrosa Leucadendron coniferum Leucadendron salicifolium Leucadendron tinctum Leucadendron meridianum Laodelphax striatellus Sogatella furcifera Phoxinus eos Phoxinus rigidus Phoxinus brevispinosus Phoxinus bicolor Tetranychus urticae Tetranychus turkestani Tetranychus ludeni Tetranychus neocaledonicus Tetranychus amicus Amphitetranychus viennensis Eotetranychus rubiphilus Eotetranychus tiliarium Oligonychus perseae Panonychus citri Bryobia rubrioculus Schizonobia bundi Petrobia harti Xerus princeps Spermophilus tridecemlineatus and Sciurus carolinensis.
Publisher: American Association for the Advancement of Science (AAAS)
Date: 27-03-2009
Abstract: The evolution and maintenance of sexual reproduction may involve important tradeoffs because asexual reproduction can double an in idual's contribution to the gene pool but reduces ersity. Moreover, in social insects the maintenance of genetic ersity among workers may be important for colony growth and survival. We identified a previously unknown termite breeding system in which both parthenogenesis and sexual reproduction are conditionally used. Queens produce their replacements asexually but use normal sexual reproduction to produce other colony members. These findings show how eusociality can lead to extraordinary reproductive systems and provide important insights into the advantages and disadvantages of sex.
Location: Pakistan
No related grants have been discovered for Kazuki Tsuji.