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Method and device for determining marine single sand body

A single sand body and sand body technology, which is applied in earthwork drilling, wellbore/well components, instruments, etc., can solve the problem of poor precision of marine single sand body

Active Publication Date: 2021-01-29
PETROCHINA CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The implementation mode of this application provides a method and device for determining a single marine sand body, so as to solve the technical problem of poor accuracy of identifying a single marine sand body existing in existing methods

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  • Method and device for determining marine single sand body
  • Method and device for determining marine single sand body
  • Method and device for determining marine single sand body

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Embodiment Construction

[0055] 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.

[0056] Considering the existing identification methods of marine single sand bodies, in actual implementation, the identification and determination of marine single sand bodies is often only based on single well logging data including spontaneous potential curves and natural gamma ray curves. The influence of other factors on the sand bod...

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Abstract

The embodiment of the present application provides a method and device for determining a marine single sand body, wherein the method includes: acquiring core data in the target area, multiple logging curves of a single well, a single well histogram, and production data, Among them, the log curve at least includes: dip log curve and density curve; through the log curve, determine the upper and lower interfaces of the sand body in a single well; through the dip log curve, determine the interlayer in the sand body; Well histogram and production data, determine the production curve and bottom hole pressure change diagram of a single well; combined with the interlayer and core data in the sand body, determine the lateral interface of the sand body, so as to determine the single sand body of marine facies. Because this scheme effectively utilizes dip log curves, production data and other data, and first determines the upper and lower boundaries of sand bodies in a single well; then combines production data and multi-well comparison to determine the lateral boundaries of sand bodies, and then determines Single sand body of marine facies. Therefore, marine single sand bodies can be accurately determined.

Description

technical field [0001] This application relates to the technical field of oil and gas development, in particular to a method and device for determining a marine single sand body. Background technique [0002] Marine clastic rock reservoirs are an important field of oil and gas exploration and development, with the characteristics of large thickness, large buried depth, high reservoir porosity, and good physical properties. In addition, marine clastic rocks have weak heterogeneity due to long-term wave elutriation, and the single well productivity of the reservoir is relatively high, which has good development potential. Therefore, how to accurately determine the marine single sand body (that is, a main form of marine clastic rock) in the target area is an important issue for the specific development of oil and gas in the target area. [0003] At present, in order to determine the single sand body of marine facies, it is usually only based on single well logging data, based ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20E21B49/00
CPCE21B49/00G16Z99/00
Inventor 余义常徐怀民高兴军王超宁超众杨乐朋周新茂王方
Owner PETROCHINA CO LTD
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