炸药震源在济阳坳陷粘土介质中的激发理论初探
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摘要
针对济阳坳陷的粘土介质,对影响激发效果的因素进行了系统分析和理论探讨。应用爆炸动力学和介质力学等理论,对济阳坳陷粘土介质爆破变形、破坏特征进行了研究;分析了爆炸应力随距离的变化规律;给出了空腔区、破碎区和塑性区的半径计算公式;论证了炸药爆炸能量在粘土介质中的能量分配理论,讨论了炸药爆速、密度等参数以及激发介质的速度、密度、弹性模量对地震波能量的影响。在理论研究的基础上,在济阳坳陷WHZ探区的不同激发介质中进行了13种不同爆速的炸药震源试验,试验结果与理论分析比较吻合,地震资料质量有了改进。
In seismic exploration,there are many factors impacting the explosive effect of dynamite source.For the clay medium of Jiyang Depression,the factors of influencing explosive effect were theoreti cal discussed.Based on explosive dynamics and medium mechanics, explosion deformation and damage characteristics for the clay median of Jiyang Depression was studied,the changing rules of explosive stress via distance was analyzed,and the radius calculation formula of cavity zone,crushed zone and plastic zone were given,the explosive energy distribution in clay medium was demonstrated,and the impact of detonation velocity and dynamite density on seismic wave energy,as well as the velocity,density and elastic module of shooting medium on seismic wave energy was studied.Based on the study of explosive theory,the explosive test with thirteen types of detonation velocity has been done in different shooting medium at WHZ area in Jiyang Depression.The test results coincide with the theoretical analysis,and the quality of seismic data has been improved.
In seismic exploration,there are many factors impacting the explosive effect of dynamite source.For the clay medium of Jiyang Depression,the factors of influencing explosive effect were theoreti cal discussed.Based on explosive dynamics and medium mechanics, explosion deformation and damage characteristics for the clay median of Jiyang Depression was studied,the changing rules of explosive stress via distance was analyzed,and the radius calculation formula of cavity zone,crushed zone and plastic zone were given,the explosive energy distribution in clay medium was demonstrated,and the impact of detonation velocity and dynamite density on seismic wave energy,as well as the velocity,density and elastic module of shooting medium on seismic wave energy was studied.Based on the study of explosive theory,the explosive test with thirteen types of detonation velocity has been done in different shooting medium at WHZ area in Jiyang Depression.The test results coincide with the theoretical analysis,and the quality of seismic data has been improved.
引文
1邓富求.山区地震勘探中的激发问题[J].石油地球物理勘探,1983,18(4):339-351
2钱绍瑚,刘江平,谷永兴,等.炸药震源爆炸机制及激发条件的研究[J].石油物探,1998,37(3):1-14
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8吕公河.地震勘探虚反射界面的测定及其利用[J].石油地球物理勘探,2002,37(3):295-299
9赵殿栋,郑泽继,吕公河,等.高分辨率地震勘探采集技术[J].石油地球物理勘探,2001,36(3):263-271
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11凌云.激发药量与药型分析[J].石油地球物理勘探, 2001,36(5):584-590
12谭绍泉.震源延迟叠加技术及应用效果[J].石油物探, 2003,42(4):427-433
13于世焕,丁伟,徐淑合,等.延迟震源技术在三维高分辨率地震勘探中的应用[J].石油物探,2004.43(2):111-115
14宋玉龙.胜利油田高精度地震勘探采集技术及应用实例[J].石油物探,2005,44(4):343-347
15吕淑然,杨军.震源炸药在土介质中爆炸效应研究[J].石油地球物理勘探,2003,38(2):113-116
2钱绍瑚,刘江平,谷永兴,等.炸药震源爆炸机制及激发条件的研究[J].石油物探,1998,37(3):1-14
3李驰,于鹏,李波,等.合理选择炸药震源最佳激发条件的因素分析[J].石油物探,1997,36(3):105-111
4王晓华,杨汝超,吴建文,等.炸药震源激发子波特性研究及最佳激发井深选择[J].石油物探,2000,39(3): 79-86
5刘艾奇,皇甫煊.激发井深选择的优化技术[J].石油物探,2004,43(6):605-607
6潘文锋,赵伟卫,孟祥顺,等.高分辨率地震勘探中最佳药量及耦合条件的选取[J].石油地球物理勘探,2000, 35(4):443-451
7张付生,贾烈明,王莉,等.陆上地震激发因素的选择方法探讨[J].石油物探,2004,43(2):149-152
8吕公河.地震勘探虚反射界面的测定及其利用[J].石油地球物理勘探,2002,37(3):295-299
9赵殿栋,郑泽继,吕公河,等.高分辨率地震勘探采集技术[J].石油地球物理勘探,2001,36(3):263-271
10刘树田.地震勘探中炸药震源药型选择问题研究[J].石油物探,1999,38(4):66-73
11凌云.激发药量与药型分析[J].石油地球物理勘探, 2001,36(5):584-590
12谭绍泉.震源延迟叠加技术及应用效果[J].石油物探, 2003,42(4):427-433
13于世焕,丁伟,徐淑合,等.延迟震源技术在三维高分辨率地震勘探中的应用[J].石油物探,2004.43(2):111-115
14宋玉龙.胜利油田高精度地震勘探采集技术及应用实例[J].石油物探,2005,44(4):343-347
15吕淑然,杨军.震源炸药在土介质中爆炸效应研究[J].石油地球物理勘探,2003,38(2):113-116
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