泌阳凹陷深层系地震资料处理关键技术  

Key techniques for seismic data processing of deep strata in Biyang Depression

作　　者：杨兴圣 赵伟[1] 刘峰[1] 江富贵 Yang Xingsheng;Zhao Wei;Liu Feng;Jiang Fu Gui(Sinopec Henan Oilfield Company Exploration and Development Research Institute,Zhengzhou 450000)

机构地区：[1]中石化河南油田分公司勘探开发研究院,河南郑州450000

出　　处：《石化技术》2021年第1期72-73,共2页Petrochemical Industry Technology

摘　　要：泌阳凹陷深层系具有良好的剩余资源潜力,但是深层系地震资料能量弱、多次波严重,速度横向变化剧烈,偏移成像困难,资料品质较差,难以满足精细勘探的需求。开展以保护低频弱信号提高信噪比技术、高精度多次波压制技术、高精度速度建模技术以及高精度偏移成像技术为主的处理关键技术攻关研究,改善深层系信噪比和保真度,提高深层系复杂构造成像精度,使目标地质体成像准确,寻找隐蔽性圈闭,解决今后较长时间内制约老区油气勘探可持续发展的关键问题,增加地质储量、促进老区稳产增效。The deep strata of Biyang sag have good potential of remaining resources,However,the seismic data of deep system have weak energy and serious multiples,The migration imaging is difficult due to the sharp lateral velocity variation,The data quality is poor,which is difficult to meet the needs of fine exploration.To carry out research on key processing technologies focusing on protecting low-frequency weak signals and improving signal-to-noise ratio,high-precision multiple suppression technology,high-precision velocity modeling technology and high-precision migration imaging technology,Improve the signal-to-noise ratio and fidelity of deep-seated system,and improve the imaging accuracy of deep-seated complex structures,It can make the target geological body imaging accurate and search for subtle traps,To solve the key problems restricting the sustainable development of oil and gas exploration in the old area for a long time in the future,increase the geological reserves and promote the stable production and efficiency increase of the old area.

关 键 词：泌阳凹陷 深层系 信噪比 保真度 刻画精度 稳产增效 

分 类 号：P631.4[天文地球—地质矿产勘探] P618.13[天文地球—地质学]