Abstract
In view of the shallow buried depth of the target layer and it is difficult to obtain high-quality seismic data of HCX gas storage project, based on the acquisition parameters of the adjacent area, the 3D acquisition technical scheme is designed for focusing on the imaging of the top of HCX high-steep anticline. By optimizing the acquisition parameters and the excitation and receiving conditions, the acquisition of high-resolution and high signal-to-noise ratio seismic data is guaranteed to meet the demand of fracture prediction and reservoir prediction.
Highlights
The HCX gas storage project is located in Changshou and Fuling districts of Chongqing, which is the 3D seismic exploration project for gas storage deployed by Petro China Southwest Oil & Gasfield Company
In view of the shallow buried depth of the target layer and it is difficult to obtain high-quality seismic data of HCX gas storage project, based on the acquisition parameters of the adjacent area, the 3D acquisition technical scheme is designed for focusing on the imaging of the top of HCX high-steep anticline
By optimizing the acquisition parameters and the excitation and receiving conditions, the acquisition of high-resolution and high signal-to-noise ratio seismic data is guaranteed to meet the demand of fracture prediction and reservoir prediction
Summary
The HCX gas storage project is located in Changshou and Fuling districts of Chongqing, which is the 3D seismic exploration project for gas storage deployed by Petro China Southwest Oil & Gasfield Company. The purpose of HCX project deployment is to implement the structural details and fault sealing, the thickness of direct cap rock and bottom supporting layer, the reservoir distribution of T1j22 and T1j21 − T1j1, and to provide evidence for the overall design of gas storage and the deployment of injection and production wells through the implementation of 3D seismic. Taking T1j of Lower Triassic as the main target layer, in order to obtain seismic reflection data from Jurassic to Silurian and ensure high signal-to-noise ratio data of main target layers, the project team carried out reasonable 3D acquisition technical scheme design for the imaging of the top of HCX high-steep anticline. By optimizing acquisition parameters and selecting excitation and receiving conditions, the resolution and signal-to-noise ratio of the data are improved
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