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Steering drilling system based on top driving and ground control and drilling operation method

A technology of directional drilling and surface control, which is applied to the automatic control system of drilling, drilling equipment, earthwork drilling and production, etc., and can solve problems such as the influence and complexity of drilling operations on the reliability of drilling tools

Active Publication Date: 2012-08-01
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology also has a big disadvantage, that is, sophisticated, complex and expensive electronic instruments while drilling and steering control mechanisms are placed in the downhole. Reliability also has a great impact on drilling operations

Method used

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  • Steering drilling system based on top driving and ground control and drilling operation method
  • Steering drilling system based on top driving and ground control and drilling operation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Drilling operation method of the present invention, comprises the steps:

[0022] 1) Prepare a steerable drilling system based on top drive and ground control, including top drive, the power output end of the top drive is connected to the rear end of the drill string, and the front of the drill string is equipped with a downhole data acquisition system. The front of the downhole data acquisition system is provided with a downhole motor with a curved shell, the front end of the downhole motor is provided with a drill bit, and the top drive is electrically connected to the top drive control system. The top drive control system includes a ground signal processing system and Top drive electrical controls.

[0023] Such as figure 1As shown, the ground signal processing system includes a signal acquisition module, the signal acquisition module is connected to the signal filtering and amplifying module, the signal filtering and amplifying module is connected to the signal dec...

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Abstract

The invention relates to a steering drilling system based on top driving and ground control, and a drilling operation method. The steering drilling system comprises a top driving device; a ground signal processing system comprises a signal acquisition module which is connected with a signal filtering and amplification module; the signal filtering and amplification module is connected with a signal decoding module, and can filter clutter out of electric signals, amplify and enhance effective signals and transmit the effective signals to the signal decoding module; the signal decoding module is connected with an analog-to-digital conversion module; the analog-to-digital conversion module is connected with an information output module; the information output module is connected with an information calculation module and display equipment; the information calculation module is connected with an information transmission module; and the information transmission module is connected with a top driving electric control device by an interface circuit. For the steering drilling system based on the top driving and the ground control and the drilling operation method, the operation efficiency is high, the control is precise, the working performance is stable, and the operation can be carried out under various geologic conditions.

Description

technical field [0001] The invention relates to a steerable drilling system and a drilling operation method based on top drive and surface control. Background technique [0002] The oil and gas industry needs to drill directional wells, horizontal wells, extended-reach horizontal wells, etc. to make the wellbore travel through the formation according to the designed trajectory due to the requirements of increasing the drilling rate and recovery rate of the oil layer and improving the quality of the wellbore. To this end, it is necessary to use a downhole power drilling tool with a certain bending angle (curved shell) and a certain deflection capability, and use downhole measurement instruments while drilling and steering control tools while drilling to implement directional drilling or continuous control of downhole closed-loop control drilling. The basic method is: when it is necessary to change the drilling direction (that is, deflection or twisting azimuth), the measurem...

Claims

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Application Information

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IPC IPC(8): E21B44/00
Inventor 刘新立高建平史宏江谢海欢潘兴明王娜刘勤志马瑞赵静刘广华邹连阳张春华张新成
Owner BC P INC CHINA NAT PETROLEUM CORP
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