System and method for slide guiding drilling well control with adaptability

Abstract

The present invention relates to a system and a method for slide guiding drilling well control with adaptability. The slide guiding drilling well control system comprises an MWD system, a top drive controller and a ground industrial control computer. The MWD system is configured to measure a tool face angle of a drilling system in a slide guiding drilling well in real time and send the tool face angle to the ground industrial control computer; the top drive controller is configured to control the rotation of a top drive in the slide guiding drilling well and perform real-time feedback of a corresponding top drive rotating angle to the ground industrial control computer; and the ground industrial control computer is configured to calculate an expected tool face angle and an expected top drive rotating angle in real time according to the tool face angle planned according to a well track, the measured tool face angle in real time and the top drive rotating angle with real-time feedback and send the expected tool face angle and the expected top drive rotating angle to the top drive controller, and the top drive controller controls the rotation of the top drive in the slide guiding drilling well according to the expected tool face angle and the expected top drive rotating angle so as to achieve adaptive control of the tool face angle of the drilling system in the slide guiding drilling well. The system and the method for slide guiding drilling well control with adaptability can be widely applied in the slide guiding drilling well field.

Description

technical field [0001] The invention relates to an adaptive sliding-steering drilling control system and control method, belonging to the field of sliding-steering drilling. Background technique [0002] Slip-steering is a drilling method commonly used in petroleum directional drilling. In the process of conventional sliding-steering drilling, since the drill string does not rotate, it is easy to generate large friction resistance, which makes it difficult to transmit the drilling pressure, which in turn affects the drilling speed. , and the response speed of adjusting the tool face by rotating the top drive is relatively slow, and even drift may occur to make the wellbore trajectory deviate from the designed trajectory. In addition, because the response of the tool face angle is affected by many factors such as formation lithology, weight on bit and drilling speed, etc., it brings great interference and uncertainty to the dynamic control of the tool face angle, and it is di...

AI Technical Summary

Problems solved by technology

[0002] Slip-steering is a drilling method commonly used in petroleum directional drilling. In the process of conventional sliding-steering drilling, since the drill string does not rotate, it is easy to generate large friction resistance, which makes it difficult to transmit the drilling pressure, which in turn affects the drilling speed. , and the response speed of adjusting the tool face by rotating the top drive is relatively slow, and may even drift to make the wellbore track deviate from the designed track

In addition, because the response of the tool face angle is affected by many factors such as formation lithology, weight on bit and drilling speed, etc., it brings great interference and uncertainty to the dynamic control of the tool face angle, and it is difficult to select a suitable set of parameters in advance. control parameters to meet various complex downhole working conditions

Especially for horizontal wells and deep wells, the above problems are more prominent, it is difficult to ensure stable drilling pressure and drilling speed, and it is also difficult to accurately control the tool face angle

Images