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Shale reservoir lamellar fracture density prediction method and electronic equipment

A shale reservoir and prediction method technology, applied in the field of oil and gas field exploration and development, can solve problems such as accurate prediction of shale fracture density, and achieve the effect of improving development efficiency

Pending Publication Date: 2022-01-11
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] In view of this, the present invention provides a method and electronic equipment for predicting the fracture density of shale reservoirs. The problem of the fracture density of the core section

Method used

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  • Shale reservoir lamellar fracture density prediction method and electronic equipment
  • Shale reservoir lamellar fracture density prediction method and electronic equipment
  • Shale reservoir lamellar fracture density prediction method and electronic equipment

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Experimental program
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Embodiment 1

[0061] figure 1 A flow chart of a method for predicting the density of bedding fractures in shale reservoirs according to an embodiment of the present invention is shown. figure 2 A method for predicting the bedding fracture density of a shale reservoir according to an embodiment of the present invention shows the bedding surface formed by asphalt filling and graptolite bone aggregation. image 3 A diagram showing the relationship between the lamination density and the total organic carbon content of each development sublayer in Jiaoshiba Well A according to a method for predicting the lamination density of shale reservoirs according to an embodiment of the present invention.

[0062] Such as figure 1 As shown, the prediction method of the shale formation fracture density in this shale reservoir includes:

[0063] Step 1: Obtain the lamination fracture density of the core sample in the core section;

[0064] Wherein, obtaining the lamination density of the core sample in t...

Embodiment 2

[0083] The present disclosure provides an electronic device comprising: a memory storing executable instructions; a processor running the executable instructions in the memory to implement the method for predicting the density of bedding fractures in shale reservoirs.

[0084] An electronic device according to an embodiment of the present disclosure includes a memory and a processor.

[0085]The memory is used to store non-transitory computer readable instructions. Specifically, the memory may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may include, for example, random access memory (RAM) and / or cache memory (cache). The non-volatile memory may include, for example, a read-only memory (ROM), a hard disk, a flash memory, and the like.

[0086] The processor may be a central processing unit (CPU) or other form of processing unit having ...

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Abstract

The invention discloses a shale reservoir lamellar fracture density prediction method and electronic equipment. The method comprises the steps of obtaining the lamellar fracture density of a core sample of a coring well section; obtaining the total organic carbon content of the core sample of the coring well section; based on the lamellar fracture density and the total organic carbon content, establishing a lamellar fracture density quantitative prediction relation; and calculating the lamellar fracture density of the non-coring well section of the horizontal well based on the lamellar fracture density quantitative prediction relation and the horizontal well logging data. According to the prediction method for the shale reservoir lamellar fracture density, the relation between the lamellar fracture density and the total organic carbon content is determined based on the lamellar fracture density and the total organic carbon content of a core sample of a coring well section, namely, the quantitative prediction relation of the lamellar fracture density is obtained according to the prediction relation and horizontal well logging data, the lamellar fracture density of the uncored well section of the horizontal well is calculated, transverse prediction of the lamellar fracture density of the uncored well section within the range of the shale gas field is achieved, and the method can be used for shale gas exploration and development area selection, layer selection evaluation, productivity evaluation and decline analysis.

Description

technical field [0001] The invention belongs to the field of exploration and development of oil and gas fields, and in particular relates to a method and electronic equipment for predicting the density of bedding fractures in shale reservoirs. Background technique [0002] Shale development is a typical feature of shale reservoirs. According to the definition of sedimentary petrology, phyllophytes are horizontal beddings developed in shale, and those whose horizontal fine layers are less than 1cm thick are called phyllophytic beddings or phyllophytes. According to sedimentary petrology, a sheet is formed by sedimentation and diagenesis, and a layer represents a short discontinuity without sedimentation or a sudden change in sedimentation. Shale is the property that shale is easy to peel and split into sheets along the bedding direction, which is the result of easy peeling and cracking due to the horizontal orientation of layered clay minerals. [0003] Like sandstone reser...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V9/00G01N33/24G01N23/2251G06F17/10
CPCG01V9/00G01N33/24G01N23/2251G06F17/10
Inventor 张永贵乔辉彭泽阳聂海宽陈刚杜伟
Owner CHINA PETROLEUM & CHEM CORP