Pullback calculation method and device based on stepped hole

A computing method and technology of computing device, applied in design optimization/simulation, special data processing applications, etc., can solve problems such as pipeline deformation and damage, seldom research on special construction conditions, failure of crossing engineering, etc.

Active Publication Date: 2020-09-11
GUIZHOU UNIVERSITY OF FINANCE AND ECONOMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Pullback load is affected by many factors. At present, domestic and foreign studies mainly focus on factors such as geological conditions, trajectory curvature, mud properties, pipeline materials, and the ratio of hole diameter to pipeline aperture, but seldom research on special construction conditions.
When the pipeline is pulled back through the steps, because there is no analysis of the impact of the resistance caused by the stepped holes on the pipeline pullback project, the excessive resistance of the steps will cause pipe jamming or pipeline deformation and damage accidents, and the pullback force will increase beyond the drilling rig The load that can be provided makes the crossing project fail

Method used

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  • Pullback calculation method and device based on stepped hole
  • Pullback calculation method and device based on stepped hole
  • Pullback calculation method and device based on stepped hole

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] figure 1It is a flow chart of the calculation method for pullback based on stepped holes provided by the embodiment of the present invention.

[0046] refer to figure 1 , the method includes the following steps:

[0047] Step S101, acquiring the user's selection operation on the operation interface, the selection operation includes a first selection operation, a second selection operation and a third selection operation;

[0048] Step S102, acquiring geometric parameters, calculation parameters, material parameters and mesh parameters according to the first selection operation;

[0049] Step S103, generating an assembly model from the geometric parameters, calculation parameters, material parameters and mesh parameters according to the second selection operation;

[0050] Step S104, judging whether the assembly model meets the requirement, if it meets the requirement, execute step S105; if not, execute step S101;

[0051] Step S105, calculate the assembly model acco...

Embodiment 2

[0069] Figure 4 It is a schematic diagram of the pullback calculation device based on stepped holes provided in Embodiment 2 of the present invention.

[0070] refer to Figure 4 , the device includes a selection operation acquisition unit 10 , a parameter acquisition unit 20 , a generation unit 30 , a judgment unit 40 and a calculation unit 50 .

[0071] A selection operation acquiring unit 10, configured to acquire a user's selection operation on the operation interface, where the selection operation includes a first selection operation, a second selection operation, and a third selection operation;

[0072] A parameter acquisition unit 20, configured to acquire geometric parameters, calculation parameters, material parameters and grid parameters according to the first selection operation;

[0073] A generating unit 30, configured to generate an assembly model from the geometric parameters, calculation parameters, material parameters and grid parameters according to the s...

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Abstract

The invention provides a step hole-based pull-back calculation method and apparatus. The method comprises the steps of obtaining selection operation of a user on an operation interface, wherein the selection operation includes first selection operation, second selection operation and third selection operation; obtaining geometric parameters, calculation parameters, material parameters and grid parameters according to the first selection operation; generating an assembly model through the geometric parameters, the calculation parameters, the material parameters and the grid parameters according to the second selection operation; judging whether the assembly model meets a demand or not; and if the demand is met, performing calculation on the assembly model according to the third selection operation to generate a cloud chart and a pull-back force curve. Therefore, the influence of resistance caused by a step hole on a pipeline pull-back project can be analyzed, and the accidents of pipe blockage or pipeline deformation damage are reduced.

Description

technical field [0001] The invention relates to the technical field of horizontal directional drilling, in particular to a drag-back calculation method and device based on stepped holes. Background technique [0002] Pullback load is affected by many factors. At present, domestic and foreign studies mainly focus on factors such as geological conditions, trajectory curvature, mud properties, pipeline materials, and the ratio of hole diameter to pipeline aperture, but seldom research on special construction conditions. When the pipeline is pulled back through the steps, because there is no analysis of the impact of the resistance caused by the stepped holes on the pipeline pullback project, the excessive resistance of the steps will cause pipe jamming or pipeline deformation and damage accidents, and the pullback force will increase beyond the drilling rig The load that can be provided makes the crossing project fail. Contents of the invention [0003] In view of this, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20
CPCG06F30/20
Inventor 夏换蔡绍洪于小民李爽
Owner GUIZHOU UNIVERSITY OF FINANCE AND ECONOMICS
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