Horizontal directional drilling track optimization method based on improved radial movement algorithm

Abstract

The invention discloses a horizontal directional drilling trajectory optimization method based on an improved radial movement algorithm, which comprises the following steps of: 1, establishing a three-dimensional horizontal directional drilling trajectory model, extracting key control parameters, and creating a multi-dimensional objective function and a corresponding equality constraint condition; 2, determining a constraint range of each control parameter of a horizontal directional drilling track, obtaining an inequality constraint condition, and defining a search range of an improved radial movement algorithm; and 3, carrying out particle swarm initialization on the basic control points in the drilling trajectory; on the basis of equality constraint conditions and inequality constraint conditions, adopting an improved algorithm to carry out search optimization calculation on the created multi-dimensional objective function, and obtaining an optimal solution which is an optimization result of the drilling trajectory. The control parameter solution vector corresponding to the optimal solution can construct the designed and optimized horizontal directional drilling track. According to the method, the drilling cost is reduced and the drilling efficiency is improved on the premise of ensuring the construction safety.

Description

technical field [0001] The invention belongs to the field of intelligent control of the horizontal directional drilling process in the non-excavation field, and in particular relates to a calculation method for optimizing the trajectory of horizontal directional drilling based on an improved radial movement algorithm. Background technique [0002] At present, the horizontal directional drilling technology in the field of trenchless development is becoming mature and widely used in China. With the continuous increase of the drilling distance, the geological conditions and the distribution of underground obstacles are becoming more and more complex. The design optimization and Construction control requirements are getting higher and higher. How to accurately control the trajectory of horizontal directional drilling, avoid the original underground obstacles, and lay pipes accurately, smoothly and reasonably is the key to directional drilling pipe laying technology. Unreasonabl...

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Problems solved by technology

[0003]At present, for the problem of drilling trajectory optimization, a large number of scholars have conducted local optimization research on a single index, and most of them have not considered complex formation factors and long-distance, multi-obstacle situations. global optimization

Some foreign scholars have proposed an ant colony intelligence algorithm for global optimization, but the design accuracy under complex conditions still needs to be improved

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