新疆石油地质

新疆石油地质 ›› 2009, Vol. 30 ›› Issue (2): 255-257.

• 应用技术 • 上一篇    下一篇

塔里木盆地西南坳陷巨厚黄土区地震采集技术

刘依谋1, 梁向豪1, 孙建华1, 张新东1, 罗卫东2   

  1. 1.中国石油 塔里木油田分公司 勘探事业部,新疆 库尔勒 841000;
    2.川庆钻探工程公司 地球物理勘探公司,新疆 库尔勒 841000
  • 收稿日期:2008-09-07 出版日期:2009-04-01 发布日期:2020-08-25
  • 作者简介:刘依谋（1981-）,男,广东梅州人,工程师,硕士,石油地质, （Tel）0996-2174209（E-mail）yimouliu@163.com.

Seismic Acquisition Techniques in Thick Loess Area in Southwest Depression, Tarim Basin

LIU Yi-mou1, LIANG Xiang-hao1, SUN Jian-hua1, ZHANG Xin-dong1, LUO Wei-dong2   

  1. 1. Department of Exploration, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China;
    2. Geophysical Prospecting Company,Sichuan-Changqing Drilling Engineering Company, Korla, Xinjiang 841000, China
  • Received:2008-09-07 Online:2009-04-01 Published:2020-08-25

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摘要： 塔里木盆地西南坳陷厚黄土区一直以来都是地震勘探的难点。受地表巨厚黄土的影响,激发和接收条件较差,地震波吸收和衰减严重,地震资料信噪比低,严重影响该区油气勘探的发展。为落实非地震勘探发现的柯西 2 号构造,在该区进行了二维地震采集技术攻关。针对工区特殊的表层结构,通过综合试验选定了最优化的组合激发参数,同时采取了检波器大基距组合接收、宽线观测系统和精细表层调查等一系列技术措施,取得了较好的效果,所获得的地震剖面品质较以往有了质的改善,较好地完成了地质任务。

关键词: 塔里木盆地, 西南坳陷, 黄土区, 地震采集, 组合激发, 宽线, 大基距组合接收

Abstract: The thick loess area in southwest depression of Tarim basin is always one of the most complex regions for seismic survey. Being covered with thick loess, the shooting and receiving conditions are poor, resulting in severe absorption and attenuation of seismic waves as well as low signal-to-noise ratio. In order to find out Kexi-2 structure found by non-seismic prospecting, such 2D seismic acquisition techniques as array shooting, long geophone array receiving and wide-line acquisition ones are all applied in this area. The results show that the seismic profile acquired is of much higher quality than ever before, proving these techniques are effective and practicable.

Key words: Tarim basin, southwest depression, loess area, seismic acquisition, array shooting, wideline, long geophone array receiving

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