نتایج جستجو برای: arenaceous texture
تعداد نتایج: 41475 فیلتر نتایج به سال:
The Neogene Guantao Formation Reservoir in the PLOilfield is a unconsolidated sandstone with high porosity and permeability. reservoir diagenesis weak dominated by compaction diagenesis. At present, insufficient research into relationship between pore characteristics sedimentary microfacies of shallow delta reservoirs restricts prediction favorable distribution. This article takes as object ana...
برای جلوگیری از تهاجم آبهای شور(دریا? دریاچه های شور? باتلاق های تبخیر در کویر و ..) به ابخوان های محیطی آنها یکی از روشهای مهندسی ممکن استفاده از سدهای زیر زمینی احداثی با هوای فشرده می باشد. تجربیات پراکنده قبلی بویژه در کالیفرنیای جنوبی ) عمدتا متکی به قضاوت های مهندسی بوده است از اینرو پژوهش حاضر بررسی برخی از پارامترهای موثر بر رفتار هیدرولیکی چنین سدهایی را هدف قرار داده است. در این پژوهش...
Porous and permeable crystalline rocks have the potential of being hydrocarbon reservoirs. In many cases, reservoir properties are created by rock-altering physico-chemical processes occurring in near-surface environment. Hydrocarbon reservoirs altered granitoids may comprise both arenaceous (clay-poor) argillaceous (clay-rich) palaeoregoliths, hence outcrop analogues from various environments ...
in this study reference as one of the five cohesive devices in the achievement of textuality in english and persian narrative/descripitive written texts is focused on and analysed . to do so , the theoretical framework elaborated by halliday and hasan (1976) and its version adapted by the writer to match the sub-types of reference in farsi are applied to the analysis of reference in english and...
The desorption characteristics of lead in two variable charge soils (one developed from Arenaceous rock (RAR) and the other derived from Quaternary red earths (REQ)) were studied, and the effects of pH value, organic acid, and competitive ions were examined. Desorption of Pb(2+) decreased from nearly 100.0 to 20.0% within pH 1.0-4.0 in both soils, and then the decrease diminished at pH > 4.0. O...
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