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A method and device for obtaining connection relationship between wells

A technology of connectivity relationship and connectivity coefficient, which is applied to earth-moving drilling, wellbore/well components, instruments, etc., can solve the problem of inaccurate determination of the connectivity relationship between wells, and achieve the effect of improving accuracy

Inactive Publication Date: 2019-03-22
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The embodiment of the present invention provides a method and device for obtaining the connection relationship between wells, which is used to solve the technical problem of inaccurate determination of the connection relationship between wells in the prior art

Method used

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  • A method and device for obtaining connection relationship between wells
  • A method and device for obtaining connection relationship between wells
  • A method and device for obtaining connection relationship between wells

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Embodiment 1

[0050] Please refer to figure 1 , the embodiment of the present application provides a method for obtaining inter-well connectivity, the method comprising:

[0051] S101: Obtain the first production data set of the first oil well and the second production data set of the second oil well, wherein the first production data set and the second production data set are different time points of the oil well in the same time period production data;

[0052] S102: Obtain a gray correlation degree coefficient between the first production data set and the second production data set based on a gray relational analysis method;

[0053] S103: Obtain a dynamic time similarity value between the first production data set and the second production data set based on a dynamic time warping algorithm;

[0054] S104: According to the gray correlation degree coefficient and the dynamic time similarity value, obtain a connectivity coefficient used to characterize the connectivity performance betwee...

Embodiment 2

[0106] Please refer to figure 2 , the embodiment of the present application is based on the method provided in the first embodiment, and correspondingly provides a device for obtaining the communication relationship between wells, the device includes:

[0107] A data acquisition module 201, configured to obtain a first production data set of a first oil well and a second production data set of a second oil well, wherein the first production data set and the second production data set are oil wells in the same time period Oil production at different time points within ;

[0108] The data processing module 202 is configured to obtain a gray correlation degree coefficient between the first production data set and the second production data set based on a gray relational analysis method; obtain the first production data set and the second production data set based on a dynamic time warping algorithm. The dynamic time similarity value between the second production data sets; acco...

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Abstract

The present invention discloses a method and an apparatus of acquiring an inter-well communication relationship. The method comprises: acquiring a first production data set of a first oil well and a second production data set of a second oil well, wherein the first production data set and the second production data set are production data of the oil wells at different time points within the same time period; acquiring a grey correlation degree coefficient between the first production data set and the second production data based on a grey correlation analysis method; acquiring a dynamic time similarity value between the first production data set and the second production data set based on a dynamic time warping algorithm; and according to the grey correlation degree coefficient and the dynamic time similarity value, acquiring a communication coefficient for representing communication performance between the first oil well and the second oil well. The technical scheme solves a technical problem in the prior art that considering a delay causes determining of an inter-well communication relationship to be inaccurate, thereby improving accuracy of acquiring an inter-well communication relationship.

Description

technical field [0001] The invention relates to the technical field of geophysical prospecting and development, in particular to a method and a device for obtaining the connection relationship between wells. Background technique [0002] The research on interwell connectivity of reservoirs is the basis of waterflood development design. After waterflooding in fractured-vuggy reservoirs, there are problems such as poor water flooding balance and severe water channeling in some wells. Therefore, to determine the connectivity and degree of interwell connectivity and to clarify the direction of water flow in injection wells is helpful for the quantitative description of remaining oil distribution, guides the implementation of comprehensive adjustment measures in the oilfield, and improves the effect of water flooding development. The formation connectivity obtained by traditional geological and geophysical prospecting (such as well logging, well testing, geological modeling, etc....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50E21B49/00
CPCE21B49/00G16Z99/00
Inventor 陈小岛康志江张冬梅赵艳艳张允金佳琪夏振温锦辉廖建平贾宁丁亚雷
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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