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Method of adjusting and calibrating rock density and speed curve and apparatus thereof

A speed curve and curve technology, applied in the field of rock density and speed curve adjustment, can solve the problems of complex calculation and slow adjustment speed, and achieve the effect of fast quality, quality improvement, and fast implementation process

Active Publication Date: 2017-07-07
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In the process of implementing this application, the inventor found that there are at least the following problems in the prior art: the existing adjustment method for the density and velocity curve of the rock is complex in calculation and slow in adjustment speed

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  • Method of adjusting and calibrating rock density and speed curve and apparatus thereof
  • Method of adjusting and calibrating rock density and speed curve and apparatus thereof
  • Method of adjusting and calibrating rock density and speed curve and apparatus thereof

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Embodiment Construction

[0045] Embodiments of the present application provide a method and device for adjusting rock density and velocity curves.

[0046] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0047] figure 1 It is a flowchart of an embodiment of the method for adjusting rock density and velocity curves in this application. Such as figure 1 As shown, the method may include:

[0048] S101: Based on the ...

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Abstract

An embodiment of the invention discloses a method of adjusting and calibrating a rock density and a speed curve and an apparatus thereof. The method comprises the following steps of based on correlation of a caliper curve or a resistivity curve with a first attribute curve in a same depth segment, combining a matching result of a corresponding synthetic record and near-well seismic channel information so as to determine that a hole enlargement influence which is generated by hole enlargement of a hole diameter on the first attribute curve to be a first influence or determine that the hole enlargement influence which is generated by hole enlargement of the hole diameter on the first attribute curve to be a second influence, wherein the first attribute curve includes a density curve and / or a speed curve; if the influence is the first influence, using a first adjustment and calibration mode corresponding to the first influence to adjust and calibrate the first attribute curve; and if the influence is the second influence, using a second adjustment and calibration mode corresponding to the second influence to adjust and calibrate the first attribute curve. By using the method of adjusting and calibrating the rock density and the speed curve and the apparatus thereof, rapid adjustment and calibration to the rock density and the speed curve can be realized.

Description

technical field [0001] The present application relates to the technical field of geological research, in particular to a method and device for adjusting rock density and velocity curves. Background technique [0002] Density curves and velocity curves converted from acoustic curves have important applications in oil and gas exploration. They are bridges for well-seismic calibration to connect seismic data with drilling and geological data. They are the basic data required for seismic inversion. However, during the drilling process, in the mudstone or sandstone section with heavy shale content or uncemented or poorly cemented, the diameter expansion phenomenon caused by the collapse of the well wall sometimes occurs. When the diameter expansion is heavy or the well wall is very irregular Sometimes the time difference of the sound waves will become significantly larger and distorted, and the density will also decrease due to the expansion of the diameter, resulting in variatio...

Claims

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Application Information

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IPC IPC(8): G01V13/00
CPCG01V13/00
Inventor 龙建东刘海涛王红军李勇根吴丰成周海燕王居峰唐子军张洪
Owner PETROCHINA CO LTD
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