摘要：At present, many inversion methods are available for ideal geometrical models, but few data interpretation approaches can be directly used for the horizontal pipeline of finite length. In this paper, a forward modeling method is proposed to calculate the gravity gradient tensor of the horizontal pipeline. The theory is to deduce the forward formulas of a horizontal pipeline of finite length from the existing formulas of a horizontal cylinder of infinite length. The calculated tensors at different measuring heights are analyzed in shapes and numerical values. In addition, we introduce two boundary extraction functions-HGA and Vzz-HDR to identify the boundary edges of the horizontal pipeline. Due to the high resolution and high sensitivity of gravity gradient tensor data, analytic signal has the advantage of locating anomalous bodies. In the case of the fixed measuring distance d, varied half extending length L, and outside diameters R, forward contour maps of the analytic signal of pipeline tensor, HGA and Vzz-HDR are analyzed for boundary recognition. The result shows a good accuracy in length recognition in all cases and a varied effect in outside diameter recognition by the ratio of d and R. Euler deconvolution of the analytic signal of gravity gradient tensor is a geophysical inversion method, which can estimate the source location automatically or semi-automatically without a priori information, and we succeed in applying this inversion method to the pipeline model. Considering the effect of the noise, the convergence of inversion result is related to L and R, but the source location is always located on the geometric center with good accuracy.

关键字：horizontal pipeline of finite length gravity gradient tensor boundary recognition analytic signal Euler deconvolution

ISSN号：1742-2132

卷、期、页：卷: 14 期: 2 页: 316-330

发表日期：2017-03-20

期刊分区（SCI为中科院分区）：无

收录情况：SCIE（科学引文索引网络版）,ESI（基本科学指标数据库）

发表期刊名称：JOURNAL OF GEOPHYSICS AND ENGINEERING

通讯作者：潘琦,冯硕,冯牧群,房华锋

第一作者：刘得军

论文类型：期刊论文

论文概要：潘琦,刘得军,冯硕,冯牧群,房华锋，Euler deconvolution of the analytic signals of the gravity gradient tensor for the horizontal pipeline of finite length by horizontal cylinder calculation，JOURNAL OF GEOPHYSICS AND ENGINEERING，2017，卷: 14 期: 2 页: 316-330

论文题目：Euler deconvolution of the analytic signals of the gravity gradient tensor for the horizontal pipeline of finite length by horizontal cylinder calculation