low-rank coal 中文意思是什麼
low-rank coal
解釋
低級煤-
Determination of transmittance for low rank coal
低煤階煤的透光率測定方法 -
Synthetically analyzed the fracture, earthquake, coal ranks and their distribution, coal seam ' s buried depth and so on, the authors have realised that low - rank bituminites, early - middle jurassic in tianshan area, are formed by burial metamorphism, and it is widespread
摘要通過對天山地區的斷裂構造、地震、地熱、煤級及其時空分佈、煤層埋深等因素的綜合分析，認為天山北緣及其鄰區早中侏羅世大范圍分佈的低級煙煤主要由深成變質作用形成，深成變質作用具普遍性。 -
First of all, the substance foundation of low - rank coal cbm generation in the basin has been discussed according to the development of coal reservoir, coal petrography, coal properties, coal rank, coal genera, coal facies feature of lower jurassic badaowan formation ( jlb ) and middle jurassic xishanyao formation ( j2x )
首先，根據下侏羅統八道灣組（ j _ 1b ）和中侏羅統西山窯組（ j _ 2x ）煤儲層發育、煤巖、煤質、煤級、煤類、煤相地質特徵論述了本區低煤級煤層氣生成的物質基礎。 -
Advanced instrument and testing techniques including adopting mercury injection apparatus, specific surface analyses apparatus, porosity - permeability measurement apparatus, isothermal adsorption instrument and drill core flow experiment system, etc., are also adopted. on the basis of study on gas zoning, known cbm show and its component, generating mechanism of low coal rank cbm are discussed. the author pointed out that generated cbm should consist of primary biogenic methane gas in lignite stage, thermogenic methane gas in long - flame coal to gas / fat coal stage, and deuterogenic biogenic methane gas in coal seam imbedded stage
在本區瓦斯分帶、已知煤層氣顯示及其組分研究基礎上，探討了低煤級煤層氣的生成機制，指出生成的煤層氣應包括褐煤階段的原生生物甲烷氣、長焰煤?氣肥煤階段的熱成因甲烷氣和煤層埋藏階段的次生生物甲烷氣三種成因甲烷氣體；進而論述了煤儲層含氣飽和度、臨界解吸壓力、臨儲壓力比、地解壓差等甲烷解吸特徵，實測與理論含氣量、煤層氣資源量與資源豐度等煤儲層含氣性特徵。 -
The analysis considered the improvement of the coalbed physical property by heat in structural movements in high coal rank reservoirs and the important role of biogas and free gas in low rank cbm reservoirs
在分析過程中考慮了構造熱事件對高煤階煤層氣藏物性的改造作用和生物氣、游離氣在低煤階煤層氣成藏過程中的作用。 -
Peat, the first stage in the formation of coal, is a low-rank material.
泥炭是煤形成的第一階段，是一種低質煤。 -
Forming differences between high and low coal rank coalbed methane reservoirs
我國高低煤階煤層氣成藏的差異性 -
The differences between high and low coal rank reservoirs are analyzed from such aspects as the conditions of the coalbed methane ' s fountain, the coalbed adsorption capacity, the hydrogeologic and physical property of coal beds, and the reservoir forming process
摘要從煤層氣成藏的氣源條件、煤層的儲集能力、煤層的物性、煤層的水文地質條件和成藏過程等方面，分析了高煤階煤層氣和低煤階煤層氣成藏的差異性。 -
Multi - hierarchical, multimeans, comprehensive and deepened research on the macrofractures, microfractures system and pores system features, capacity of cbm storage and osmosis, adsorption characteristic, as well as physical properties of surrounding rocks of coal reservoirs have been made. furthermore, classifying standard and identifying characteristics for fractures - pores system of low coal rank coal reservoirs in zhungaer basin has been put forward as well. in this process, some routine instrument are used, such as viewing coal mine scene and hand specimen, observing polished section and surface which are made from lump coal and powder coal samples, observing and image analyses under the common microscope ' s transmitted light, reflection light and fluorescence
通過礦井現場、鏡下觀察統計等常規手段，採用多種先進儀器和測試技術展開對煤儲層的裂隙系統與孔隙系統發育特徵、儲滲性能、吸附特性及煤儲層圍巖物性特徵的多層次、多手段分析，並綜合室內外觀測及前人成果，提出了煤儲層裂隙與孔隙系統的劃分標準與識別特徵，分別從宏微觀尺度、定性與定量層次對裂隙與孔隙系統特徵及其與煤儲層儲滲性能關系的研究。 -
On the basis of surveying on research actuality and advance of coalbed methane reservoirs geology, regional geological background and sedimentary characteristic of jurassic coal reservoirs, this dissertation proceeded integrative study on low - rank coal reservoirs and preliminary probing into its coalbed methane pool forming mechanism in zhungaer basin, northwest china
本文在國內外煤層氣儲層地質研究現狀及進展、準噶爾盆地侏羅系煤儲層地質背景和沉積特徵調研基礎上，對低煤級煤儲層特徵及其富氣成藏機制進行了初步研究。 -
Primary search on making low rank coal to super pure coal by surface modification
低階煤表面改性制備超凈煤初探 -
Coal refuse - fired electric power plant and rational utilization of low - rank coal
協莊煤礦綜合利用煤矸石發電的實踐
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