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Method and device for determining kink structure

A determination method and structure technology are applied in the field of determination methods and devices of knee fold structure, which can solve the problems of low accuracy of knee fold structure, and achieve the effect of improving the accuracy.

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

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Problems solved by technology

[0004] The present application provides a method and device for determining the structure of the knee fold, which can solve the problem of low accuracy of the determined knee fold structure in the related art

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  • Method and device for determining kink structure
  • Method and device for determining kink structure
  • Method and device for determining kink structure

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Embodiment Construction

[0050] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0051] The embodiment of the present application provides a method for determining the knee fold structure, which can be applied to a host computer. see figure 1 , the method can include:

[0052] Step 101, acquiring a first seismic section image of a production well.

[0053] The first seismic section image may include: an image of the borehole trajectory of the production well, a section image of multiple formations at the location of the production well, and a first straight line and a second straight line in the section image.

[0054] Wherein, the image of the borehole trajectory of the production well is located between the first straight line and the second straight line, and the formation between the first straight line...

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Abstract

The invention discloses a method and device for determining a kink structure, and relates to the technical field of oil and gas exploitation. The method comprises the steps that an upper computer cangenerate a second seismic profile image including a partial profile image located between a first straight line and a second straight line based on formation dip logging data of a production well anda first seismic profile image; the partial profile image is obtained based on the formation dip angle logging data of the production well, so that the partial profile image accurately presents the condition of the stratum through which the production well passes; and therefore, it is ensured that the upper computer can accurately determine whether the structure type of a wing part through which the production well passes is the kink structure or not based on the second seismic profile image including the partial profile image. Compared with the relates technology that workers determine the kink structure according to the blurred image of the position where the wing part is located, and according to the method for determining the kink structure, the accuracy of determining the kink structure is effectively improved.

Description

technical field [0001] The present application relates to the technical field of oil and gas production, in particular to a method and device for determining a knee-fold structure. Background technique [0002] An anticline structure refers to a rock formation whose shape bulges upward when the rock formation is bent. The structure types of the wings of the anticline structure include knee-fold structure and fault structure. Since fault structures generally block complete oil and gas reservoirs, during drilling, if drilling to the wing of an anticline structure, workers usually need to first determine whether the structure type of the wing is a knee-fold structure. If the structure type is a knee fold structure, drilling can continue to produce oil and gas. [0003] In the related art, the staff can use the seismic section image of the anticline structure to determine whether the structure type of the wing is a knee-fold structure. However, the image at the location of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B49/00E21B47/00G01V1/30G01V1/50
CPCE21B49/00E21B47/00G01V1/301G01V1/50Y02A90/30
Inventor 梁瀚杨雨冉崎文龙陈康罗冰狄贵东韩嵩
Owner PETROCHINA CO LTD