山西焦煤科技
山西焦煤科技
산서초매과기
SHANXI COKING COAL SCIENCE & TECHNOLOGY
2014年
6期
20-22
,共3页
煤层气%煤储层%构造特征%含气量
煤層氣%煤儲層%構造特徵%含氣量
매층기%매저층%구조특정%함기량
Coal-bed methane%Coal reservoir%Structure characteristics%Gas content
在系统研究韩城矿区构造特征的基础上,剖析了构造对煤层含气性的控制作用。研究表明:区域构造背景上,矿区位于华北地台南缘与秦岭褶皱带过渡区,决定了矿区具备煤层气开发前景。次级构造形迹组合特征上,矿区内部浅部断褶带、挤压阻气构造带、缓倾斜构造带、深部单斜带的基本构造格局致使煤层气含量由矿区周边向腹部增高。控气构造类型上,向斜轴部、缓倾斜带含气量最高,背斜次之,正断层和边浅部含气量最低。
在繫統研究韓城礦區構造特徵的基礎上,剖析瞭構造對煤層含氣性的控製作用。研究錶明:區域構造揹景上,礦區位于華北地檯南緣與秦嶺褶皺帶過渡區,決定瞭礦區具備煤層氣開髮前景。次級構造形跡組閤特徵上,礦區內部淺部斷褶帶、擠壓阻氣構造帶、緩傾斜構造帶、深部單斜帶的基本構造格跼緻使煤層氣含量由礦區週邊嚮腹部增高。控氣構造類型上,嚮斜軸部、緩傾斜帶含氣量最高,揹斜次之,正斷層和邊淺部含氣量最低。
재계통연구한성광구구조특정적기출상,부석료구조대매층함기성적공제작용。연구표명:구역구조배경상,광구위우화북지태남연여진령습추대과도구,결정료광구구비매층기개발전경。차급구조형적조합특정상,광구내부천부단습대、제압조기구조대、완경사구조대、심부단사대적기본구조격국치사매층기함량유광구주변향복부증고。공기구조류형상,향사축부、완경사대함기량최고,배사차지,정단층화변천부함기량최저。
The control action of structure to gas-bearing of coal seam on the basis of systematicly researching geologic structure characteristics in Hancheng mining area is analyzed.The result indicates that the mine is locate in the transitional zone between the south margin of north China platform and Qinling fold belt,decides the development prospects of coalbed methane in terms of reginal structure.On the secondary structure traces combination features the basic tectonic framework such as shallow fault-folded belt within the mining area,compressive resistance structural zones,gently inclined structural zones and deep monoclinal zones result in coalbed gas contents increase from outside mining area to inside.On structure type,the highest gas contents occur at syncline axis and gently inclined belt,the lowest values occur in normal fault and shallow structure,while medium values occur at anticline.