Micro-seismic signal filtering method and micro-seismic signal filtering system utilizing L1 mode optimization

A signal filtering and microseismic technology, which is applied in the field of geosciences, can solve the problems of time-consuming and labor-intensive accuracy and reliability, the quality of picking cannot be guaranteed, and the inability to process massive data, etc.

Inactive Publication Date: 2020-09-18
GUANGDONG UNIV OF PETROCHEMICAL TECH
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Problems solved by technology

In contrast, manual methods are often used in production, which is time-consuming and labor-intensive, with poor accuracy and reliability, and the quality of picking cannot be guaranteed, nor can it handle massive amounts of data.

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  • Micro-seismic signal filtering method and micro-seismic signal filtering system utilizing L1 mode optimization
  • Micro-seismic signal filtering method and micro-seismic signal filtering system utilizing L1 mode optimization
  • Micro-seismic signal filtering method and micro-seismic signal filtering system utilizing L1 mode optimization

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] figure 1 a use Schematic flow chart of the mode-optimized microseismic signal filtering method

[0031] figure 1 For the present invention a kind of utilization Schematic flow chart of the mode...

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Abstract

The embodiment of the invention discloses a micro-seismic signal filtering method and a micro-seismic signal filtering system by utilizing mode optimization. The method comprises the following steps of 101, acquiring a signal sequence S acquired according to a time sequence, 102, calculating modulus sparsity P, 103, solving a mode optimization characteristic value matrix kappa, 104, solving a modeoptimization matrix A, and 105, solving a signal sequence Snew after the noise is filtered out.

Description

technical field [0001] The invention relates to the field of geosciences, in particular to a microseismic signal filtering method and system. Background technique [0002] Hydraulic fracturing microseismic monitoring technology is an important new technology developed in the fields of low permeability reservoir fracturing, reservoir driving and water flooding front in recent years, and it is also an important supporting technology for shale gas development. This technology arranges a multi-level three-component geophone arrangement in adjacent wells to monitor the microseismic events generated in the hydraulic fracturing process of the target interval of the fracturing well, and inverts the microseismic events to obtain parameters such as the source position, so as to describe the hydraulic fracturing The geometry and spatial distribution of fracture growth during the process provide real-time information on the length, height, width and orientation of fractures produced by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/36
CPCG01V1/364G01V2210/324
Inventor 翟明岳
Owner GUANGDONG UNIV OF PETROCHEMICAL TECH
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