摘要
阜康断裂带由于受复杂地表和地下条件影响,地表起伏剧烈,地层倾角大,表层破碎,激发和接收条件差,导致面波、折射波发育,次生线性干扰强;地腹构造复杂,断层发育,地层反射波组连续性及其成像效果差。针对工区特点,采用宽线采集方法大幅度提高有效叠加次数和增强抗干扰能力,利用检波器大组合压制多种干扰,实际应用效果表明,该采集方法能够提高深层反射资料的信噪比和构造主体部位的成像效果。
Affected by both complex surface and subsurface conditions, Fukang fault zone is characterized by very rugged topography, big formation dip angle, breaking surface, and poor excitation and receiving conditions, resulting in the development of surface wave and refraction wave, and strong secondary linear interference. Subsurface structures are complicated, faults are developed, and the continuity and imaging effect of reflection events are bad. In the study area, the method of wide line acquisition is used to greatly improve the effective stacking fold and enhance the anti-interference ability. Large geophone array is used to suppress many kinds of interference. The application effect shows that the method can improve the signal to noise ratio of deep reflection data and the image effects of main structural parts.
出处
《天然气勘探与开发》
2011年第4期39-45,98-99,共7页
Natural Gas Exploration and Development
关键词
阜康断裂带
宽线采集
检波器大组合
信噪比
Fukang fault zone, wide line acquisition, large geophone array, signal to noise ratio
