Unlock instant, AI-driven research and patent intelligence for your innovation.

A Method for Judging Fault Trend Based on Stress Type Conversion Trend

A technology of type conversion and trend, applied in the field of fault trend judgment based on the trend of stress type conversion, to achieve the effect of low prediction cost, strong operability and high practical value

Inactive Publication Date: 2019-03-12
CHINA UNIV OF GEOSCIENCES (BEIJING)
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 2012, Zhang Xin et al. proposed a combined well-seismic fault identification method under the condition of dense well pattern, but this method puts forward high requirements on the seismic quality and richness of logging data in the oil field; in addition, many scholars, on the basis of seismic interpretation, Secondary processing of seismic data to identify faults, this method also puts forward high requirements on the quality of seismic data, and the prediction results are often multi-solution

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Method for Judging Fault Trend Based on Stress Type Conversion Trend
  • A Method for Judging Fault Trend Based on Stress Type Conversion Trend
  • A Method for Judging Fault Trend Based on Stress Type Conversion Trend

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0039] Taking northern Guizhou as an example to illustrate the specific implementation of the present invention, northern Guizhou is structurally located in the upper Yangtze platform region, and the tectonic evolution of northern Guizhou is consistent with the regional tectonic evolution of the Yangtze platform. The Yangtze Platform is generally referred to as the Honghe Fault (Ailaoshan-Honghe Structural Belt), east of the west edge of the Longmenshan Fault, south of the Jiashan-Xiangshui Fault and the Mianlue-Dabieshan Fault, and the Shizong-Mile Fault , Yadu-Ziyun fault, and the area north of the Minpu-Sibao fault. ( figure 2 )

[0040] The evolution process of the Yangtze Platform has experienced the Xuefeng Period (Z), Early-Middle Caledonian Period (∈-O), Late Caledonian Period (S), Hercynian Period (D-C), Indosinian Period, Yanshanian Period and Himalayan period. The superposition of multiple tectonic movements resulted in the complex structure of the Yangtze Platf...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the exploration and development field of oil and gas fields and particularly provides a method for judging the fault strike based on the stress type conversion trend. According to the invention, the ground stress is calculated according to hydraulic fracturing data, and a reservoir crustal stress profile is established. Mechanical parameters or the rock mechanical experiment is interpreted through logging and a rock mechanical parameter profile is established. On the basis of determining the current ground stress direction, the transformation trend of a profile stresstype is further identified. Therefore, the fault identification and the trend prediction are realized. According to the method, the problem that the fault trend cannot be accurately judged through thetraditional seismic interpretation is solved, and the accurate quantitative prediction of oil reservoir faults is realized.

Description

technical field [0001] The invention relates to the field of exploration and development of oil and gas fields, in particular to a method for judging the trend of faults based on the conversion trend of stress types. Background technique [0002] There are many ways to identify faults, including seismic identification, logging interpretation, oilfield dynamic development data, stress field simulation, and physical simulation. In fault prediction and interpretation, the orientation of faults affects the development of oil and gas and the distribution of remaining oil, which is also a difficulty that plagues the further development of oil fields. Dai Junsheng et al. proposed to qualitatively predict the distribution of faults by means of stress field simulation method, use plane shear stress to predict the trend of faults, and use section shear stress to predict the tendency of faults, but this method can only qualitatively analyze the distribution of faults, and uses shear st...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/30
CPCG01V1/306G01V2210/624
Inventor 刘敬寿丁文龙杨海盟卢霖李昂谷阳
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)