活性炭测氡法监测煤岩水力压裂裂缝的试验
|
摘要
根据活性炭测氡法的原理和煤岩水力压裂的原理,尝试应用该方法对煤岩水力压裂过程中产生的裂缝进行监测,在山西长治进行了4次监测试验。通过对试验区域压裂之前以及之后3年的地表氡值的观测对比,发现煤岩压裂以后地表出现了明显的氡异常,随着时间的推移,氡异常的范围逐渐减少并趋于消失,这说明活性炭测氡法能够对由煤岩水力压裂产生的扰动有所响应。
According to the principle of hydraulic fracturing and active carbon radon measuring method,we try to apply active carbon radon measuring method to monitor cracks in coal rock by hydraulic fracturing.Four experiments were carried out in Changzhi city of Shanxi province.By comparing the radon value before and after fracturing within three years,we found that radon appeared obvious anomaly on the ground after fracturing.With the passage of time,the range of radon anomaly gradually decreases and tends to disappear.The results show that the method of active carbon measuring radon can respond to the disturbance caused by hydraulic fracturing of coal and rock.
According to the principle of hydraulic fracturing and active carbon radon measuring method,we try to apply active carbon radon measuring method to monitor cracks in coal rock by hydraulic fracturing.Four experiments were carried out in Changzhi city of Shanxi province.By comparing the radon value before and after fracturing within three years,we found that radon appeared obvious anomaly on the ground after fracturing.With the passage of time,the range of radon anomaly gradually decreases and tends to disappear.The results show that the method of active carbon measuring radon can respond to the disturbance caused by hydraulic fracturing of coal and rock.
引文
[1]修乃岭,王欣,梁天成,等.地面测斜仪在煤层气井组压裂裂缝监测中的应用[J].特种油气藏,2013,20(4):147-150.
[2]段银鹿,李倩,姚韦萍.水力压裂微地震裂缝监测技术及其应用[J].断块油气田,2013,20(5):644-648.
[3]修乃岭,严玉忠,付海峰,等.吉县区块煤层气U形水平井水力压裂裂缝形态监测与模拟实验[J].新疆石油地质,2016,37(2):213-217.
[4]李国富,孟召平,张遂安.大功率充电电位法煤层气井压裂裂缝监测技术[J].煤炭科学技术,2006,34(12):53-55.
[5]贾利春,陈勉,金衍.国外页岩气井水力压裂裂缝监测技术进展[J].天然气与石油,2012,30(1):44-47.
[6]魏树群,王玺瑞.用测氡法探测地下火区的研究[J].煤炭工程师,1997(2):24-26.
[7]王兴,张新军,王海龙,刘鸿福.基于测氡法的煤层注气(CO2)后运移监测[J].煤矿安全,2015,46(3):133.
[8]刘波,张新军,王兴.测氡法在低射气区隐伏断层探测的应用[J].煤矿安全,2015,46(5):156-159.
[9]罗光伟.岩石破裂与氡含量变化关系的实验研究[J].地球物理学报,1977,20(4):277-282.
[2]段银鹿,李倩,姚韦萍.水力压裂微地震裂缝监测技术及其应用[J].断块油气田,2013,20(5):644-648.
[3]修乃岭,严玉忠,付海峰,等.吉县区块煤层气U形水平井水力压裂裂缝形态监测与模拟实验[J].新疆石油地质,2016,37(2):213-217.
[4]李国富,孟召平,张遂安.大功率充电电位法煤层气井压裂裂缝监测技术[J].煤炭科学技术,2006,34(12):53-55.
[5]贾利春,陈勉,金衍.国外页岩气井水力压裂裂缝监测技术进展[J].天然气与石油,2012,30(1):44-47.
[6]魏树群,王玺瑞.用测氡法探测地下火区的研究[J].煤炭工程师,1997(2):24-26.
[7]王兴,张新军,王海龙,刘鸿福.基于测氡法的煤层注气(CO2)后运移监测[J].煤矿安全,2015,46(3):133.
[8]刘波,张新军,王兴.测氡法在低射气区隐伏断层探测的应用[J].煤矿安全,2015,46(5):156-159.
[9]罗光伟.岩石破裂与氡含量变化关系的实验研究[J].地球物理学报,1977,20(4):277-282.