A method and device for comparing single channel sand bodies between underground wells

A technology of channel sand body and comparison device, which is applied in the field of geological research and can solve problems such as uncertainty in the comparison of channel sand bodies between wells

Active Publication Date: 2020-10-30
CHINA UNIV OF GEOSCIENCES (BEIJING)
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Problems solved by technology

[0004] The purpose of the embodiment of the present application is to provide a single channel sand body comparison method and device between underground wells, so as to solve the uncertain channel sand body comparison between wells in the prior art that only uses static geological methods for channel sand body comparison. sexual problems

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  • A method and device for comparing single channel sand bodies between underground wells
  • A method and device for comparing single channel sand bodies between underground wells
  • A method and device for comparing single channel sand bodies between underground wells

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Embodiment Construction

[0031] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0032] It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

[0033] At present, the conventional method of channel sand body comparison between underground wells is to identify and compare channel sand bodies through logging curves obtained by measuring devices on the ground, and then judge the connectivity and distribution of sand bodies.

[0034] However, the comparison results obtained by the above method are likely ...

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Abstract

An embodiment of the invention provides a contrast method and a contrast device for single river channel sand bodies between underground wells. The contrast method comprises the steps of: acquiring detection information of a tracer agent which is injected from an injection well and detected in a monitored well; calculating connectivity parameters of interwell sand bodies according to the detectioninformation, wherein the connectivity parameters indicate sand body connectivity between the injection well and the monitored well; determining the sand body connecting situation between the injection well and the monitored well according to the connectivity parameters; and identifying the single river channel sand bodies from a composite river channel according to the sand body connecting situation, wherein the composite river channel is formed by splicing and superposing a plurality of single river channel sand bodies. The contrast method and the contrast device determine the sand body connecting situation between the injection well and the monitored well by means of the tracer agent, and further can avoid the problem of contrast uncertainty of the river channel sand body between the underground wells.

Description

technical field [0001] The present application relates to the technical field of geological research, in particular to a method and device for comparing single channel sand bodies between underground wells. Background technique [0002] At present, the existing channel sand body correlation methods are mainly realized by static geological methods. For example, the measurement device installed on the ground sends measurement signals to the underground channel sand bodies, and then the channel sand bodies are identified through the obtained logging curves, and inter-well sand bodies are compared to clarify the relationship between the underground channel sand bodies. connectivity and distribution. [0003] However, due to the variability of channel sand bodies, there are some uncertainties in channel sand body correlation only by static geological methods, resulting in that the final comparison results cannot truly reflect the true distribution and connectivity of underground...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V15/00
CPCG01V15/00
Inventor 李胜利
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
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