井炮同步激发采集技术在塔北—塔中沙漠区的应用

doi:10.13810/j.cnki.issn.1000-7210.2024.01.007

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Abstract In recent years， Tarim Oilfield has adopted the method of “overall deployment of the regional belt and centralized and efficient acquisition” in the desert area of the platform area in Tarim Basin， accelerating the full coverage of high-precision 3D seismic data in the area. Seismic acquisition faces many challenges such as heavy workload， short acquisition time window， and simultaneous construction by multiple teams. Blending caused by the close construction distance of multiple seismic teams will seriously affect the effective weak signals in deep layers， and extending the excitation time interval and the alternate acquisition will greatly reduce the acquisition production efficiency. To solve this problem， this paper conducts the qualitative analysis of numerical simulation and the quantitative analysis of large offset and long array test data in the work area and the 120 s long background record recorded in the field. It comprehensively establishes the time-space chart of data blending analysis and defines the types and mechanism of data blending in the desert area. Finally， the stimulation schemes of borehole shooting under different distance conditions are proposed， which have been successfully applied to the 2408 km² continuous 3D seismic acquisition of the desert in Area II of Fuman Oilfield. The practice indicates that the proposed method effectively avoids interference from blending， improves the daily efficiency of acquisition by about 35%， and ensures that the project is high-quality， efficient， and completed on schedule. The method consolidates the database for efficient oil and gas exploration and development， provides a reference for 3D seismic acquisition in large desert areas， and contributes technical ideas for improving synchronous excitation systems.

Key words： 3D seismic acquisition desert area blending synchronous excitation borehole shooting

Received: 18 March 2023

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P631

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	Articles by authors
	YANG Liangang
	ZHU Yunhong
	SONG Jinpeng
	LUO Xinsheng
	KANG Tingting
	Tian Haonan

Cite this article:

YANG Liangang,ZHU Yunhong,SONG Jinpeng等. Application of synchronous excitation acquisition technology in desert area of Tabei-Tazhong[J]. OGP, 2024, 59(1): 61-69.

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http://www.ogp-cn.com/EN/10.13810/j.cnki.issn.1000-7210.2024.01.007 OR http://www.ogp-cn.com/EN/Y2024/V59/I1/61

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