Method and device for dividing stratum of target well

A technology for target wells and formations, applied in earthwork drilling and production, boreholes/well components, etc., can solve the problems of heavy formation workload and insufficient layering

Pending Publication Date: 2020-07-31
北京月新时代科技股份有限公司
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Problems solved by technology

However, as the oilfield enters the middle and late stages of development, more wells are drilled, and the workload of stratigraphic correlation is very heavy
[0003] At present, for the core work of stratigraphic division of single wells and analysis of the corresponding relationship between wells on the cross-well section, there are mainly

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  • Method and device for dividing stratum of target well
  • Method and device for dividing stratum of target well
  • Method and device for dividing stratum of target well

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Embodiment Construction

[0048]In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. 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.

[0049] At present, commercial software has been used to assist stratigraphic correlation work, but its main contribution is limited to the establishment of well databases and correlation profiles. For the core work of stratigraphic division of single wells and analysis of the corresponding relationship between wells on well-connected profiles, geologists mainly The eyes, hands, and br...

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Abstract

The invention provides a method and device for dividing a stratum of a target well, and relates to the technical field of stratum division. The method comprises the steps of determining a comprehensive well logging curve according to each well logging curve of the target well, specifically, the comprehensive well logging curve is used for synthesizing stratum property information corresponding tothe target well; carrying out similarity comparison on the comprehensive well logging curve and a preset comprehensive well logging curve of a reference well to respectively obtain a first similar well logging curve section of the comprehensive well logging curve and a second similar well logging curve section of the preset comprehensive well logging curve of the reference well; and according to astratum corresponding to the second similar well logging curve section, determining the stratum division condition in the first similar well logging curve section. According to the method and devicefor dividing the stratum of the target well, the stratum can be finely divided, and subsequent applications such as oil and gas reservoir development are facilitated.

Description

technical field [0001] The invention relates to the technical field of stratum division, in particular to a stratum division method and device for a target well. Background technique [0002] Stratigraphic correlation between wells in a reservoir is one of the key steps in reservoir description and reservoir characterization. The correlation results directly determine the reservoir framework and further control the spatial distribution of reservoirs in the reservoir, and ultimately affect the development of the reservoir. The core work of stratigraphic correlation is mainly completed by geologists based on the characteristics of logging curves such as marker layers, sedimentary cycles, and lithological combinations, by establishing intersecting well-connected sections covering all wells in the entire oilfield. However, as the oilfield enters the middle and late stages of development, more wells are drilled, and the workload of stratigraphic correlation is very heavy. [000...

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Application Information

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IPC IPC(8): E21B49/00
CPCE21B49/00
Inventor 刘晓庆何继涛杨双豪王鲁娟李福全
Owner 北京月新时代科技股份有限公司
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