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A Construction Method of 3D Fine Formation Model in Well Logging Exploration Scale

A stratigraphic model and construction method technology, applied in the field of oil and gas exploration, can solve problems such as the inability to study the influence of reservoir space, and achieve the effect of improving accuracy and fluid identification ability

Active Publication Date: 2021-08-06
CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

However, the existing digital core models focus on the influence of pore microstructure on rock physical properties, but cannot study the influence of reservoir space development heterogeneity on logging physical properties. Quantitatively describe the heterogeneity of such reservoirs and their physical response to rock electrical properties

Method used

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  • A Construction Method of 3D Fine Formation Model in Well Logging Exploration Scale
  • A Construction Method of 3D Fine Formation Model in Well Logging Exploration Scale
  • A Construction Method of 3D Fine Formation Model in Well Logging Exploration Scale

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Embodiment 1

[0066] Taking the construction of a fine stratigraphic model of 3D logging detection scale at the depth of 2305m-2350m in the HG tight sandstone reservoir of an example well in an oilfield in China as an example, Figure 1 is The flow chart of the construction method of the three-dimensional fine formation model of the well logging detection scale, the construction method of the three-dimensional fine formation model of the well logging detection scale, specifically includes the following steps:

[0067] Step 1: Construction of fine formation geometric model of 3D logging exploration scale reservoir. The starting and ending depth, dip and dip information of the fine stratigraphic model with the same occurrence are obtained through electrical imaging logging interpretation data. Then, the construction of formation occurrence is realized through the rotation of the coordinate axis, and then the three-dimensional logging detection scale fine formation geometric model is construct...

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Abstract

The invention provides a method for constructing a three-dimensional fine stratum model of well logging detection scale, comprising the following steps: step 1: constructing a geometric model of a three-dimensional well logging detection scale fine stratum model; rate calibration; step 3: according to the calibrated electrical imaging data, assign the resistivity attribute to each grid of the 3D well logging detection scale fine formation geometric model to construct a physical model of the 3D well logging detection scale fine formation; step 4: based on limited The element method is used to calculate the above-mentioned 3D logging detection scale fine formation physical model, and the calculated resistivity is compared with the lateral curve and geological information. The beneficial effect of the present invention is that the technical scheme of the present invention provides new reservoir parameters and logging interpretation models for logging interpretation and inversion, improves logging interpretation accuracy and fluid identification capabilities, and builds a new logging data processing and Interpreting models lays the foundation for modeling and numerical simulation methods.

Description

technical field [0001] The invention relates to the field of oil and gas exploration, in particular to a method for constructing a three-dimensional fine stratum model at the logging detection scale. Background technique [0002] With the rapid development of my country's economy and the increasing demand for oil and gas resources, oil and gas exploration and development have gradually shifted from conventional reservoirs to unconventional reservoirs such as tight sandstone and shale. Complex rock structure, large changes in physical properties, complex lithology, and factors affecting electrical and physical properties of rock are the characteristics of this type of reservoir. However, the existing digital core models focus on the influence of pore microstructure on rock physical properties, but cannot study the influence of reservoir space development heterogeneity on logging physical properties. Quantitatively describe the heterogeneity of such reservoirs and their physi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V3/18G01V3/38
CPCG01V3/18G01V3/38
Inventor 王海涛赖富强黄兆辉朱章雄谭先锋张国统钟路路
Owner CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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