珠江口盆地开平东地区断裂增强技术研究
李克成1,2，陈兆明1,2，吕华星1,2，郭 佳1,2，刘 滢1,2

1.中海石油（中国）有限公司深圳分公司，深圳 518054;2.中海石油深海开发有限公司，深圳 518054

珠江口盆地;降频处理;分频重构;融合技术

Research on Seismic Interpretation Processing Technology in the Kaiping East Region of the Pearl River Mouth Basin
LI Kecheng1,2，CHEN Zhaoming1,2，LYU Huaxing1,2，GUO Jia1,2，LIU Ying1,2

1.Shenzhen Branch， CNOOC China Limited ， Shenzhen 5180054， China;2.CNOOC Deepwater Development Limited ， Shenzhen 518054， China

The Pearl River Mouth Basin; Frequency reduction processing; Frequency division reconstruction;Combinatorial technique

DOI: 10.13512/j.hndz.2026.02.15

备注

开平东地区位于南海北部珠江口盆地珠二坳陷西部，主要以断块、断鼻型油气藏为主。该区断裂具有控储控藏控圈的特点，且该区由于火成岩的影响造成地震资料品质较差，不能满足有效识别断裂与精细解释的需求，严重制约了本区勘探的进程。本次研究通过地震资料降频处理和分频重构达到改善地震成像的效果；再通过分频融合技术进一步提升断裂平面剖面分辨率。在解释性处理后的地震资料上共落实主要目的层断块、断鼻型构造圈闭26个，面积最大为21.52km2，其中A圈闭上钻KP-A1井获得工业油气流，证明了本方法组合的适用性。
The Kaiping east area is located in the western of the ZhuⅡDepression，within the Pearl River River Mouth Basin，in the northern South China Sea. It is predominantly contains fault block and fault nose type oil and gas reservoirs， where faults exert controlling influences on both hydrocarbon accumulation andreservoir distribu⁃tion. Moreover， due to the influence of igneous rocks， the quality of seismic data in this area is relatively poor， and cannot meet the needs of effective fault identification and fine interpretation，which has seriously restricts the exploration process here. In this study，seismic imaging was enhanced through seismic data preprocessing and fre⁃quency-division processing，and the resolution of fault plane profiles was further improved through frequency divi⁃sion interpretation and fusion technology. Based on the interpretively processed seismic data，a total of 26 stuctual traps—mainly fault-blocks and fault-nose types—were identified in the main target layers，with a maximum area of 21.52 km2. Among them， drilling was conducted on Trap A at well KP-A1， yielding industrial oil and gas flow， which confirms the applicability of this integrated methodological approach.
·