Media.Player

Drilling Process Monitor

Summary

An Apparatus Is Used With A Drilling Assembly For Drilling A Borehole. The Drilling Assembly Has An Impact Device Linked To A Drill Head. The Impact Device Is Powered By A First Fluid Under A First Pressure To Impart A Percussive Force To The Drill Head. The Percussive Force Is A Function Of The First Pressure. A Thruster Of The Drilling Assembly Is Also Linked To The Drill Head. The Thruster Is Powered By A Second Fluid Under A Second Pressure To Impart A Thrust Force To The Drill Head. The Thrust Force Is A Function Of The Second Pressure. Additionally, A Rotator Of The Drilling Assembly Is Linked To The Drill Head. The Rotator Is Powered By A Third Fluid Under A Third Pressure To Impart A Torque To The Drill Head. The Torque Is A Function Of The Third Pressure.; The Apparatus Includes A First Pressure Sensor Communicating With The First Fluid To Output A First Electrical Signal That Is A Function Of The First Pressure. A Second Pressure Sensor Communicates With The Second Fluid To Output A Second Electrical Signal That Is A Function Of The Second Pressure. A Third Pressure Sensor Communicates With The Third Fluid To Output A Third Electrical Signal That Is A Function Of The Third Pressure. A Position Sensor Outputs A Fourth Electrical Signal That Is A Function Of Depth Of The Drill Head Relative To A Reference Location. A Device Monitors The First, Second, Third And Fourth Signals. The Device Produces Respective Graph Traces Of Functions Of The Percussive Force, The Thrust Force, The Torque And The Depth.

Supplementary Information

Patent Number: US6637523B2
Application Number: US2001943592A
Inventor: Lee, Chack Fan | Law, Kum Tim | Yue, Zhong Qi
Priority Date: 22 Sep 2000
Priority Number: US6637523B2
Application Date: 30 Aug 2001
Publication Date: 28 Oct 2003
IPC Current: E21B000100 | E21B004400 | E21B004500 | E21B004704
US Class: 175027 | 175048 | 702009
Assignee Applicant: The University of Hong Kong
Title: Drilling process monitor
Usefulness: Drilling process monitor
Summary: For monitoring borehole drilling operation.
Novelty: Borehole drilling monitoring device measures movement of drill feed with respect to fixed points on ground and pressure of compressed air from drilling machine controller to drilling rig

Industry

Robot/Machinery

Application No.

US2001943592A

Country/Region

Hong Kong