当前位置:主页 > 科技论文 > 地质论文 >

海上斜井地震资料采集方式设计及应用研究

发布时间:2018-06-26 18:32

  本文选题:观测系统设计 + 正演模拟 ; 参考:《长安大学》2017年硕士论文


【摘要】:我国绝大多数地区地质条件较为复杂,石油和天然气的勘探水平较低,储采比远远低于世界平均水平的40:1。陆上的油气勘探已进入中后期,海上油气田勘探开发将成为以后油气田的主战场。井间地震是在井中激发,井中接收,从而可以获得较高分辨率的地震信号,它是测井数据与地面地震勘探之间的桥梁。由于井间地震技术采集方式的特殊性,在现如今仪器装备的基础上,如何能在有限的财力、人力、物力的情况下,通过合理的设置炮点和检波点的排列次序,以此来获得更好的地震数据显得尤为重要。在实际采集工作中,它所获得井间地震波场比较丰富,需要建立合理的处理流程,压制干扰波而突出有效波,从而为后期的综合解释提供强有力的保障。本文深入研究了海上斜井井间地震的观测系统采集设计,主要分析和论述斜八字井型、双左拐井型、双右拐井型的平层、斜层(上倾、下倾)的观测系统设计,主要概述了上行波(P波、S波)和上行波(P波、S波)、下行波(P波、S波)时需要设计的观测系统。重点分析和讨论了平层和斜层(上倾、下倾)所需要的观测系统的不同之处以及对比了国际地球物理知名公司斯伦贝谢公司的采集方式设计。最后讨论了复杂地层情况下的理论资料的观测系统设计与成像方法。在这些方法技术的指导下,针对甘肃某地区实际斜井井间地震资料,进行观测系统设计和实际相关资料处理,最后结合井区钻井地质资料、测井资料等数据,完成了该井区地震储层构造与裂缝发育的综合解释和储层反演。研究结果表明设计完成斜层的观测系统要比平层的观测系统难度大。复杂地层情况的观测系统要比常规地层情况的观测系统难度大。同时成P波(上行和下行)、S波(上行和下行)的像的观测系统要比同时成上行P波、上行S波需要更多的炮点和检波点。在相同井型和地层条件下,国际地球物理知名公司斯伦贝谢公司的采集方式和本论文所采取的设计方式相比较而言各有特色。最后通过理论资料和实际资料的验证,设计的观测系统能够达到预期的目的。
[Abstract]:The geological conditions in most areas of China are relatively complex, the exploration level of oil and gas is low, and the ratio of reservoir to production is far lower than the world average of 40: 1. The onshore oil and gas exploration has entered the middle and late stage, the offshore oil and gas field exploration and development will become the main battlefield of the oil and gas field in the future. Cross-well seismicity is a bridge between logging data and surface seismic exploration, which is excited in the well and received in the well, so that the seismic signal with high resolution can be obtained. Because of the particularity of cross-well seismic acquisition method, on the basis of today's instrument and equipment, how can we arrange the sequence of gun points and detection points reasonably under the condition of limited financial, manpower and material resources? It is particularly important to obtain better seismic data. In the actual acquisition work, the cross-well seismic wave field obtained by it is quite abundant, so it is necessary to set up a reasonable processing flow, suppress the interference wave and outshine the effective wave, thus providing a strong guarantee for the comprehensive interpretation in the later stage. In this paper, the acquisition system design of cross-well seismic observation system for offshore inclined wells is deeply studied, and the design of observation system for inclined eight well type, double left corner well type, double right turning well type, oblique layer (updip, downdip) is analyzed and discussed. In this paper, the observation system of uplink wave (P wave S wave), uplink wave (P wave S wave) and downlink wave (P wave S wave) is introduced. The differences between the observational systems needed for the flat layer and the oblique layer (updip, downdip) are analyzed and discussed in detail, and the acquisition mode design of Schlumberger is compared with that of Schlumberger, a well-known international geophysical company. Finally, the design of observation system and imaging method of theoretical data in complex strata are discussed. Under the guidance of these methods and techniques, aiming at the actual cross-well seismic data in a certain area of Gansu Province, the design of the observation system and the processing of the actual relevant data are carried out. Finally, the data of drilling geological data and logging data in the well area are combined. The comprehensive interpretation and reservoir inversion of seismic reservoir structure and fracture development in this well area have been completed. The results show that it is more difficult to design and complete the observation system of the oblique layer than that of the flat layer. The observation system of complex strata is more difficult than that of conventional strata. The observation system of the image of S wave (uplink and downlink) at the same time is more important than that of the uplink P wave, which requires more shooting points and detection points. Under the same wellbore and formation conditions, the collection methods of Schlumberger, an international geophysical company, have their own characteristics compared with the design methods adopted in this paper. Finally, through the theoretical and practical data verification, the designed observation system can achieve the desired purpose.
【学位授予单位】:长安大学
【学位级别】:硕士
【学位授予年份】:2017
【分类号】:P631.4

【参考文献】

相关期刊论文 前10条

1 李绪宣;朱振宇;张金淼;;中国海油地震勘探技术进展与发展方向[J];中国海上油气;2016年01期

2 张树林;张懿;;海上多波多分量地震勘探技术现状及应用展望[J];海洋地质前沿;2014年11期

3 冯玉苹;刁瑞;徐维秀;杨晶;宋建国;;井间地震纵横波分离方法研究及应用[J];岩性油气藏;2013年05期

4 孙渊;黄琴;温柔;李小伟;秦民君;刘东明;;井间时移地震属性在水驱前缘监测中的应用研究[J];石油仪器;2013年02期

5 范晓文;马向军;程峰;熊齐国;毕月欣;;井间地震各类震源特征分析[J];石油仪器;2012年06期

6 陈瑜;李绪宣;孙渊;范廷恩;;斜井井间反射波逆时偏移成像技术及应用效果初探[J];地质科技情报;2012年04期

7 李桂花;朱光明;马德堂;;井间地震数据处理方法——以大庆某采油厂井间地震勘探为例[J];石油地球物理勘探;2011年01期

8 段宝平;何正勤;叶太兰;;井间地震技术的研究现状及其工程应用前景[J];物探与化探;2010年05期

9 张进铎;;国外井间地震技术的最新发展动态[J];内蒙古石油化工;2009年01期

10 毛中华;牟来勇;刘美丽;吴忠;;垦71井区井间地震数据采集方法[J];石油地球物理勘探;2008年S2期

相关博士学位论文 前1条

1 马灵;海上地震数据多缆采集与记录系统设计研究[D];中国科学技术大学;2012年

相关硕士学位论文 前7条

1 文博;井间地震资料二维波场去噪处理方法技术研究[D];长安大学;2012年

2 俞岱;井中地震吸收参数提取及应用研究[D];长安大学;2011年

3 邓伟;斜井井间地震倾斜界面常规成像方法技术研究[D];长安大学;2011年

4 周小荣;井中地震成像及多参数综合应用研究[D];长安大学;2011年

5 景月红;地震初至波走时层析成像与近地表速度建模[D];长安大学;2009年

6 王东燕;地震约束波阻抗反演及应用研究[D];长安大学;2006年

7 张文起;地震反演在储层预测中的应用[D];中国地质大学(北京);2005年



本文编号:2071011

资料下载
论文发表

本文链接:https://www.wllwen.com/kejilunwen/diqiudizhi/2071011.html


Copyright(c)文论论文网All Rights Reserved | 网站地图 |

版权申明:资料由用户3b55f***提供,本站仅收录摘要或目录,作者需要删除请E-mail邮箱bigeng88@qq.com