A method and device for determining glauconite content in glauconite sandstone

A glauconite content technology, applied in the field of petroleum geological exploration, can solve the problem of not providing information on the glauconite content in the glauconite sandstone

Active Publication Date: 2017-11-07
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the prior art does not provide a method for obtaining the content of glauconite in the glauconite sandstone using well logging data

Method used

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  • A method and device for determining glauconite content in glauconite sandstone
  • A method and device for determining glauconite content in glauconite sandstone
  • A method and device for determining glauconite content in glauconite sandstone

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Embodiment Construction

[0059] 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.

[0060] The specific implementation of the embodiment of the present application will be described in detail below with several specific examples.

[0061] An embodiment of a method for determining the content of glauconite in the glauconite sandstone of the present application is first introduced below. figure 1 It is a flow chart of an ...

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Abstract

The embodiment of the invention provides a method and device for determining the content of glauconite in glauconite sandstone. The method comprises steps of: making a superposed curve of a volume density logging curve and a neutron porosity logging curve of a reference logging, and identifying the glauconite sandstone; subjecting a glauconite content amplitude value acquired from core data, the corresponding volume density logging curve, and the corresponding neutron porosity logging curve to multivariate linear regression in order to obtain a linear relation among a glauconite content identification factor, the volume density data, and the neutron porosity data; computing a glauconite content identification factor of the reference logging according to the linear relations; subjecting the glauconite content amplitude value and the glauconite content identification factor to nonlinear regression to obtain a nonlinear relation between the glauconite content and the glauconite content identification factor; and determining the content of glauconite in glauconite sandstone of a logging to be identified according to the nonlinear relation. The method and the device may accurately determine the content of glauconite in glauconite sandstone.

Description

technical field [0001] The invention relates to the technical field of petroleum geological exploration, in particular to a method and a device for determining the content of glauconite in glauconite sandstone. Background technique [0002] In the process of petroleum geological exploration and development, well logging is one of the important means to determine and evaluate oil and gas layers, and it is also an important means to solve a series of geological problems. It can provide various information and data for petroleum geology and engineering technicians. Conventional logging data usually refers to lithological logging data, physical logging data and electrical logging data. [0003] In the prior art, it is necessary to use logging data to evaluate complex lithology reservoirs such as glauconite sandstone, and it is necessary to first identify the lithology and accurately determine the content of rock mineral components. Subsequent use of glauconite content in glauco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V5/10
CPCG01V5/10
Inventor 张志伟阳孝法谢寅符马中振刘亚明郭松伟王丹丹周玉冰赵永斌
Owner PETROCHINA CO LTD
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