【正文】 規(guī)程》，煤炭工業(yè)出版社，2004[4]張鐵鋼，礦井瓦斯綜合治理技術(shù)，《礦井瓦斯綜合治理技術(shù)》，2001[5]山西省148煤田地質(zhì)勘探隊，山西省西山煤田原相煤礦地質(zhì)報告，2001[6]王兆豐，礦井瓦斯涌出量預(yù)測方法研究，國家“七五”科技攻關(guān)項目研究報告，煤科總院撫順分院，1990[7]王兆豐，礦井瓦斯涌出量分源預(yù)測法及其應(yīng)用，《煤礦安全》，1991,№1[8]王兆豐，礦井瓦斯涌出量預(yù)測方法及規(guī)范的研究，國家“八五”科技攻關(guān)項目研究報告，煤科總院撫順分院，1995[9]河南理工大學(xué)瓦斯地質(zhì)研究所，《瓦斯地質(zhì)概論》，煤炭工業(yè)出版社，1991[10]李金，王英敏，《礦井瓦斯涌出量研究》，煤炭工業(yè)出版社，1958致 謝 語通過這次做畢業(yè)論文，不但了解了瓦斯涌出量預(yù)測的方法，而且對瓦斯含量的測定也有了比較好的認(rèn)識，對整個設(shè)計過程有了一個完整的掌握，為以后從事工作打下了扎實的基礎(chǔ)。首先感謝王兆豐老師，盡管他總是公務(wù)纏身，電話不斷，但還是會抽出時間來，不時的關(guān)心和督促我們的論文進(jìn)展情況，平易近人的笑容讓我覺的很親切。我們做得不好或者不會的地方他都耐心的指出來，仔細(xì)地講。謝謝熱情大方的陳向軍老師，他雖然剛參加工作沒幾年，但治學(xué)嚴(yán)謹(jǐn)，工作認(rèn)真負(fù)責(zé)的態(tài)度，以及有求必應(yīng)，永不嫌煩的好性格，給我在做人辦事方面樹立了好榜樣。謝謝研究生賈東旭老師，忙于科研課題的他自己本來就夠忙的了，還要帶領(lǐng)我們?nèi)⒓赢厴I(yè)實習(xí)，并搜集畢業(yè)實習(xí)和畢業(yè)論文相關(guān)的資料。最后還要感謝系里的各級領(lǐng)導(dǎo)，輔導(dǎo)員謝老師、浮老師，以及各位帶過我們的任課教師，是你們伴隨我走過了四年難忘的大學(xué)時光，給予了我悉心的教導(dǎo)，在此，我對你們表示衷心的感謝。論文即將完成之際，四年的大學(xué)生涯也就畫上句號了。心中的不舍，于眷戀時那樣的噬咬著心，但天下無不散的宴席，祝我們在今后的人生道路上一帆風(fēng)順，一路平安。New Technologies Of Coal bed MethaneExtraction for Electricity ProductionYu. F. VasyuchkovPresident of “MINERAL” Co.,Academician、professor、(Tech).ABSTRACTThe Coal bed Methane (CBM) is an ecologically clean product .The gas of high quality(95100%) is distributed in the coalfields as zones: methane zone is distributed lower zone of gas weathering，which includes of nitrogenmethane and methanenitrogen zones. Just the methane zones serve as sources of CBM. The gas is in coal seams of middle and high ranges of metamorphism (rank), except of high metamorphism anthracites of East Dents coal basin. Thus for mercial recovery of CBM may be used methane zones of coal seams with rather high gas content and corresponding rank of the coal. In methanecontent coal seams methane bearing capacity arises between 40 to 45 m 3 /t. However most of methanecontent coal seams demonstrate gascontent as low as 1020m3/t. Coalfields of the world contain more than 100 trillion m3clean methane [1] that is equal to126 tones of clean coal with calorific power of 7000 kcol/kg. Countries: China, USA, Russia, Australia, Ukraine, Canada, Poland are those with very big coal bed methane potentials. As on the data of Su xiaopeng [2] China covers resources of CBM, which is equal to 3035 trillion m3. Methane emission from coalmines of china to the atmosphere attains 1319 billion m3 annually. In Russia 57 mines (% from total number) are equipped with degasification systems. Total methane emission is m3/year from which % are extracted through degasification systems. Coal bed methane from methane zones of coalfields may be utilized through three possible ways:1 From mine return airmethane flows。2 From methaneextracted (degasification) systems。3 An independent methane recovery from coalfields. In 1991 from gassy mines of the world an emission of methane attains 45 billion m3. This volume cover of methane attains 45 billion m3. This volume covers 60 million tons of coal and production of 185 billion kwt/h of electricity. However only single experiment is known in England by use of methane from mine return airmethane mixturesIn that year m3 of methane were extracted to the surface through degasification systems of about 580 coal mines and half of which were utilized in terminal power systems .The use of CBM in countries of the world is uneven [3]: Australia100%, USA99%, Poland80%, German71%, %, China60%, UK32%and %. These data cover both degasification CBM and from independent CBM recovery .For example, in USA15%length of gas pipelines are given for CBM.With use of CBM serious problems spring up in connection with low volume rate of CBM extraction from coal seams of lowpermeability .The economic efficiency of CBM extraction depends of the solution of the following problems:1 significant increase of flow rates of CBM extraction from coal seams and respectively of electric power production。2 increase of the volumes of methane recovery to a guarantee of big thermal power stations。3 reduce a number of exploited well and a total length of degasification pipelines.This report is dedicated to the discussion of mentioned above problems.GAS ATRIBUTES OF COAL SEAMS The main gasdynamic attributes of coal seams influencing on gas productivity of CBM wells are: filtration gaspermeability, porosity, and diffusion. Gaspermeability and methane content (gas pressure) of coal seamA structure of coal seams is characterized by systems of cracks and pores in a very large range of its meanings. Last model of the structure is systems of pore’s blocks of coal in situ divided by cracks .In line with this model the methane emission from seam is derived from both cracks and pore’s blocks concurrently as this takes place an emission from the blocks is the controlling factor .The filtration permeability characterizes the cracks and the diffusion permeability characterizes the blocks. In the cracks methane is in free gas condition and in pores of the blocks methane is in bounded condition .A distribution of gascontent is 515% of free gas and 8595%of bounded gas. The free gas is transferred in coal in connection with filtration laws. Our investigations have shown that a regime of filtration of filtration has a place before decrease of gad pressure in coal seam from natural to 1Mpa.The bounded gas is in the coal seam in sorption and /or dissoluble conditions .The dissolved gas is defined as molecular hard solution of methane in the organic structure of coal. This is new phenomenon, which has been researched, and scientific discovery has been done by ourselves [4]. During of CBM extraction from wells at first the free gas is emitted but then, after decrease gas pressure to 1Mpaand less, the bounded gas is emitted more .The connected methane is gas is emitted more .The connected methane is transferred in the blocks to cracks in connection with diffusion laws.Thus the CBM productivity of well depends on a coal resistance to transfer of CBM through both