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A microseismic event detection method and system using edge detection

An event detection and microseismic technology, applied in the petroleum field, can solve the problems of time-consuming and laborious accuracy and reliability, the quality of picking cannot be guaranteed, and the inability to process massive data, etc., to achieve the effect of improving accuracy, good robustness, and simple calculation

Active Publication Date: 2022-02-08
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Description
  • Claims
  • Application Information

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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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  • A microseismic event detection method and system using edge detection
  • A microseismic event detection method and system using edge detection
  • A microseismic event detection method and system using edge detection

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Embodiment Construction

[0092] 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.

[0093] 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.

[0094] figure 1 Schematic flow chart of a microseismic event detection method using edge detection

[0095] figure 1 It is a schematic flowchart of a microseismic event detection method using edge detecti...

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Abstract

The embodiment of the present invention discloses a microseismic event detection method and system using edge detection, the method includes: step 101 acquires the signal sequence S collected in time order; step 102 performs moving average filtering on the signal sequence S; step 103 obtains Take N M 1 point maxima and N M 2 point maximum value; step 104 to obtain N edge detection values; step 105 to obtain the microseismic event judgment threshold; step 106 to detect microseismic events.

Description

technical field [0001] The invention relates to the petroleum field, in particular to a method and system for detecting microseismic events. 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 h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/28G01V1/30
CPCG01V1/288G01V1/30
Inventor 翟明岳李道格
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)