The Use of the TMCS Measurement and Control Simulator on the Ground Simulation Experiment of the Rotary-steering Dilling Measurement System

This paper introduces in detail the TMCS simulator in the Measurement while drilling system of rotary steering drilling tool in ground simulation Experiment system. Focusing on of TMCS measurement and control simulator, and the realization of steering drilling measurement simulation test system principle of work process KEYWORD: Steering drilling; TMCS measurement and control simulator; Measurement system of steering drilling; Ground simulation Experiment International Conference on Social Science, Education Management and Sports Education (SSEMSE 2015) © 2015. The authors Published by Atlantis Press 1049 target motion characteristics simulation. Selected TMCS measurement and control simulator consists of pre-positioning data steerable drilling threedimensional trajectory, WOB and torque drilling parameters such as generators and computer subsystems. The drilling parameter produce a variety of mixed uses a dedicated data signal modulation scheme, which can effectively reduce the direct digital synthesis technology brought drift, dislocation and loss. Control process shown in Figure 1. Figure 1. TMCS control process On the workstation simulator programming movement characteristics of rotary steering drilling assembly can also be preset orbit stored in document form workstation simulator, the simulator will be run in accordance with the information stored threedimensional simulation of down-hole drilling trajectory. 3 SIMULATED TEST STEERING DRILLING SYSTEM COMPONENTS AND WORKING PRINCIPLE The ground simulation experiment for in steering drilling measurement system, that components shown in Figure 2. The simulation system works as follows. Receive commands and Decoding module 地面 井下 Ground simulation computer Ground command transmission module Workstation simulator Negative mud pressure pulse signal Mud pressure positive pulse signa Analog generator for Inclination, azimuth, tool face angle, WOB drilling parameters Host PC (Down-hole control system) the measurement system of steering drilling Steering Drilling Servos Figure 2. Schematic diagram of steering drilling measurement system simulation experiment system Steering drilling system collects the real-time inclination, azimuth and tool face angle based on the output of the sensor data with from measurement data model of the workstation simulator , and analog outputs sent to the host PC (the down-hole control center),Which of the control software to collect data based on the real-time input wellbore trajectory calculation, measurement and steering drilling system solver of inclination, azimuth and tool face angle information were to do the filtering. Then inclination, azimuth and tool face angle deviation with the output of the state variable filter, will feedback to steering drilling measurement system solver error correction, ground simulation computer real-time acquisition host computer (the underground control center) of the D / A output, in a way to get uploading these amendments of the host computer (down-hole control center) by the downhole mud pressure pulse signal, and according to the mathematical model of the D / A output and a steering servo mechanism, solving actual servo movement at this time, feeding rotary steering drilling of BHA model for controlling motion to calculate the angular velocity of the solution, attitude, position, velocity and acceleration information, converted into real-time drilling parameters which ground engineers need ,and to be ground control instructions that were encoded for transferring by mud pressure module negative pulse signals. To be received with decoder module into digital signals, eventually propagat to the host computer for analysis and processing, control commands can be manipulated to manipulate steering drilling servo mechanism, in order to achieve automatic control rotary steering drilling. 4 CASE HISTORY: APPLICATION VERIFICATION AND GROUND SIMULATION RESULTS 4.1 Ground simulation computer HMI Shows the overall status of the system, can be set to synchronize the time to ensure on synchronization ground simulation computer and down-hole in realtime clock. Easy to storage and cleanup the historical data, remove historical data; Isoperimetric element of display operating temperature from down-hole BHA, rotating state, inclination, while the builtnegative mud pressure pulse control instructions. Figure 3. Ground simulation computer HMI Inclination, azimuth, tool face angle, drill press and other drilling parameters generator Encoder / decoder Workstation simulator CAN bus Negative mud pressure pulse signal