摘要
为研究屯兰矿南七盘区正断层附近煤层气井产能特征,对盘区内正断层及附近煤层气井投产1 a的产水量和产气量变化规律进行分析。研究发现:盘区内2条正断层上盘侧均具有较好的封闭性;相同排采制度下断裂构造附近煤层气井的产水量和产气量在时间和空间上具有明显变化规律。
In order to study the productivity characteristics of CBM well near the normal faults in the7 th south panel of Tunlan mine,Analysis on the change law of water production and gas production in the normal fault and nearby CBM well in the disk area for one year. The results show that the upper side of two normal faults in the disk area have good sealing ability;the water production and gas production in the CBM well near the fault structure under the same drainage system have obvious changes in time and space.
引文
[1]赵少磊,朱炎铭,曹新款,等.地质构造对煤层气井产能的控制机理与规律[J].煤炭科学技术,2012,40(9):108-111,116.
[2]范耀.焦坪矿区侏罗纪煤层地面煤层气开发实践与认识[J].煤炭技术,2015,34(10):95-97.
[3]张小东,赵家攀,张硕.屯留井田煤层气井排采主控因素研究[J].煤炭科学技术,2014,42(6):71-75.
[4]刘大锰,李俊乾.我国煤层气分布赋存主控地质因素与富集模式[J].煤炭科学技术,2014,42(6):19-24.
[5]吕玉民,汤达祯,许浩,等.沁南盆地樊庄煤层气田早期生产特征及主控因素[J].煤炭学报,2012,37(S2):401-406.
[6]邱楠生.油气成藏条件及主要控制因素[M].北京:石油工业出社,2003.
[7]吕延防,王伟,胡欣蕾,等.断层侧向封闭性定量评价方法[J].石油勘探与开发,2016,43(2):310-316.
[8]王超,付广,董英洁,等.基于SGR算法的断层侧向封闭性评价方法改进及其应用[J].地质学报,2017,91(7):1 641-1 650.
[9]牛然.断层对煤层气的控制机理研究——以鹤壁煤田F40断层为例[J].中国煤层气,2016,13(6):20-23.
[10]陆卫东,魏国营,陶东东.阶梯状断层控制煤层瓦斯分布特征[J].煤炭技术,2017,36(7):153-155.