Key techniques and application of seismic acquisition for deep buried hills and their interior structures in Jizhong depression

doi:10.3969/j.issn.1672-7703.2019.06.013

Abstract

Abstract: In the Jizhong depression, many types of buried hills are widely distributed, and have abundant reserves; however, both the deep underground structure and the surface conditions are complex, which leads to unsatisfactory exploration results from deep buried hills and their interior structures. With continuous improvements of geological understanding and equipment, technical research on exploring deep buried hills and their interior structures have been conducted. After several stages, exploration targets have changed from conventional buried hills to deep buried hills and their interior structures; seismic data acquisition from 2D to 3D surveys; conventional to ?ne surveys; and ?ne to target surveys. Operation changed from simple to ?ne, and from explosives to vibroseis green exploration. After nearly 20 years of technological research, a series of seismic survey technologies for deep buried hills and their interior structures have been developed, including “the excitation design based on the quality of buried hill data”, “the design of the recording system based on the structural characteristics of buried hills”, “the performance of the recording system based on complex surface conditions” and “the multi-stage acquisition and vertical observation system”. These mature technologies have improved the exploration data of the deep buried hills and their interior structures, and greatly enhanced the understanding of the deep buried hills in the Jizhong depression.

CLC Number:

Chen Jingguo, Li Haidong, Wang Dongwen, Liu Zhanjun, Ge Daiwei, Liu Shengli, Fu Bin, Liu Ying. Key techniques and application of seismic acquisition for deep buried hills and their interior structures in Jizhong depression[J]. China Petroleum Exploration, 2019, 24(6): 807-814.

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