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Method and device for building land subsidence prediction model of double-dissolved-cavity salt cavern reservoir

A land subsidence and prediction model technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as inaccurate predictions, and achieve the effect of improving accuracy

Inactive Publication Date: 2016-02-10
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In related technologies, when constructing the land subsidence prediction model of double-solution-cavity salt-cavern storage, the probability integral formula derived from semi-infinite mining in two-dimensional space cannot well reflect the anisotropy properties of the salt layer in three-dimensional space. , the land subsidence prediction model of the dual-cavity salt-cavern storage constructed by related technologies is not accurate enough to predict the ground subsidence of the double-dissolution-cavity salt-cavern storage

Method used

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  • Method and device for building land subsidence prediction model of double-dissolved-cavity salt cavern reservoir
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  • Method and device for building land subsidence prediction model of double-dissolved-cavity salt cavern reservoir

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Embodiment 1

[0058] In order to ensure the safety of the double-cavity salt-cavern storage and avoid a series of natural disasters caused by ground subsidence in the double-dissolution-cavity salt-cavern storage, the embodiment of the present invention provides a ground subsidence prediction model for the double-dissolution-cavity salt-cavern storage The ground subsidence model of the dual-cavity salt-cavern storage can be predicted by the constructed double-cavity salt-cavern storage model, so as to provide guidance for the management of the dual-cavity salt-cavern storage in a timely manner. see figure 1 , the method flow provided by this embodiment includes:

[0059] 101: Obtain the information of the double-dissolved cavern salt-cavern storage, and establish a three-dimensional geological analysis model of the double-dissolved-cavity salt-cavern storage according to the information of the double-dissolved cavern salt-cavern storage.

[0060] 102: Select the key points of the three-dim...

Embodiment 2

[0077] The embodiment of the present invention provides a method for constructing a ground subsidence prediction model of a double-dissolved cavity salt-cavern storage. The method of the land subsidence prediction model is explained in detail. see figure 2 , the method flow provided by this embodiment includes:

[0078] 201: Obtain the information of the double-dissolved cavern salt-cavern storage, and establish a three-dimensional geological analysis model of the double-dissolved-cavity salt-cavern storage according to the information of the double-dissolved cavern salt-cavern storage.

[0079] Wherein, the information of the double-cavity salt-cavern storage includes, but is not limited to, geological information and cavity shape parameters of the double-dissolution-cavity salt-cavern storage. The geological information of the double solution cavity salt cavern storage includes but is not limited to the vertical and horizontal profile of the solution cavity salt cavern st...

Embodiment 3

[0142] see Figure 6 , an embodiment of the present invention provides a device for constructing a ground subsidence prediction model for a double-dissolved cavity salt cavern storage, the device comprising:

[0143] An acquisition module 601, configured to acquire information about double solution cavity salt cavern storage;

[0144]Build module 602, used to establish a three-dimensional geological analysis model of the double-cavity salt-cavern storage according to the information of the double-dissolution-cavity salt-cavern storage;

[0145] The selection module 603 is used to select the key points of the three-dimensional geological analysis model of the double solution cavity salt-cavern storage, the first

[0146] The first analysis module 604 is used to perform rheological analysis on key points under different rheological times and different internal pressures to obtain rheological analysis results on key points;

[0147] A construction module 605, configured to cons...

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Abstract

The invention discloses a method and a device for building a land subsidence prediction model of a double-dissolved-cavity salt cavern reservoir and belongs to the technical field of underground space. The method comprises steps as follows: acquiring information of the double-dissolved-cavity salt cavern reservoir, and building a three-dimensional geological analysis model of the double-dissolved-cavity salt cavern reservoir according to the information of the double-dissolved-cavity salt cavern reservoir; selecting a key point of the three-dimensional geological analysis model of the double-dissolved-cavity salt cavern reservoir, and performing rheological analysis on the key point of the three-dimensional geological analysis model of the double-dissolved-cavity salt cavern reservoir under the conditions of different rheological time and different internal pressure to obtain a rheological analysis result of the key point; building the land subsidence prediction model of the double-dissolved-cavity salt cavern reservoir according to the rheological analysis result of the key point. According to the method and the device, the anisotropic double-dissolved-cavity salt cavern reservoir three-dimensional geological analysis model of a reaction salt layer in three-dimensional space is built, and the land subsidence prediction model of the double-dissolved-cavity salt cavern reservoir is built according to rheological analysis of the key point on the model, so that land subsidence of the double-dissolved-cavity salt cavern reservoir is accurately predicted.

Description

technical field [0001] The invention relates to the technical field of underground space, in particular to a method and a device for constructing a ground subsidence prediction model for a double-dissolved cavity salt cavern storage. Background technique [0002] As the energy problem becomes more and more prominent, energy strategic reserves become very important. Due to the particularity of salt rock formations, salt caverns are excavated in salt rock formations, and the use of salt caverns for energy strategic reserves has been widely used worldwide. However, due to the creep of the salt rock formation, the volume of the dissolved cavity decreases, which in turn leads to land subsidence, which leads to a series of disasters and brings great losses to people's lives and property. Due to the two caverns, the double-cavity salt-cavern storage is more prone to land subsidence. Therefore, in order to ensure the safety of the double-dissolution-cavity salt-cavern storage, it is...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 罗金恒刘新荣李丽锋王军保赵新伟郭建强
Owner BC P INC CHINA NAT PETROLEUM CORP
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