Multipoint photo page
attraction
Instruments: electronic single multipoint: ESS, YSS, RSS electromagnetic.
Instrument: while drilling; Wired: SST, MS3, RSS, YST, DOT and DST, Wireless: Mud sperry-Sun Instrument Pulse: Science.
Drilling equipment GEOLINK QDT YST-48X electromagnetic wave: sperry-Sun Scientific Drilling
Non-magnetic frame gyro SRO ground recording gyro instrument: BOSS electronic gyro flexible gyro holder gyro
TLCX dynamic north-seeking gyro Schlumberger
Part II Brief Introduction of Instruments
Matters needing attention in chapter 1 general rules
1 ESS, SST, MS3 and other imported measuring instruments (produced by SPERRY-SUN company in the United States) are powered by 1 10V, so it is absolutely impossible for such measuring instruments to misuse the 220V power supply.
2 At the scene, after connecting the measuring instrument and before starting, the socket connected with the measuring instrument power supply must be measured with a multimeter to ensure that the measuring instrument power supply voltage is the specified voltage.
3 TI thermal printer power supply, one end is connected to the thermal printer, and the other end can only be connected to 1 10 volt power supply.
4 It is necessary to know the magnetic field strength and magnetic dip angle of the constructed well. In gyro survey, it is also necessary to know the exact geographical latitude of the well site under construction. 5 YST (including 35 mm
25mm, produced by Beijing Blue Ocean Company). The instrument uses 220 volts AC.
6 RSS measuring instrument while drilling (produced by Reisel Company in Britain) can be powered by 1 10V, 220V alternating current.
7.DST (including 35mm and 25mm produced by Beijing Plymen Company) adopts 220v AC.
Chapter II ESS electronic multipoint inclinometer
Section 1 Introduction to Instruments
The full name of ESS is electronic measurement system. ESS is NL.
Sperry-Sun is a new type of electromagnetic electronic measuring instrument. ESS measurement is powered by battery. It can record while working continuously underground, and output and process data through computers and printers. The main principle of ESS measurement is to use gravity accelerometer and fluxgate to sense the gravity field and geomagnetic field of the earth respectively to measure borehole deviation and azimuth. ESS can be used for orientation and borehole trajectory measurement, and the measurement methods mainly include throwing survey and hanging survey. The instrument can not only measure the original data (well deviation, azimuth, tool surface and well temperature), but also analyze and process the measured data by computer. The processing results include: vertical depth, apparent translation, horizontal displacement, east-west component, north-south component and closed orientation.
Compared with ordinary single-point and multi-point instruments, ESS has the following advantages:
1: simple operation, easy to learn and master;
2. High measurement accuracy (the accuracy is the same as that of electronic gyro BOSS); 3. The performance is stable and reliable to ensure the success rate of measurement;
4. It can eliminate artificial reading error and measure and read data quickly; 5. The borehole trajectory can be processed according to the measured data;
6. Strong magnetic interference correction ability.
Section 2 Main Components and Functions
ESS electronic multi-point inclinometer is mainly composed of underground probe, battery tube assembly, ground computer and operating software, ti thermal terminal, dot matrix printer, intermediate interface, probe tube protection tube assembly and auxiliary tools.
Underground detector
The three-dimensional incline fluxgate, that sensing element of the gravity accelerometer and the temperature sen element are used for acquiring the inclination angle of the drilling hole,
Azimuth, tool surface original signal and downhole temperature data, and convert the original signal into inclinometer data, and store the inclinometer data in the probe tube.
Battery box assembly
Eight No.2 alkaline high-energy batteries are installed in the battery barrel assembly to provide power for the probe tube. Isolation and shock absorption are adopted to enhance the impact resistance of the power supply. Ground computer and operating software
The ground computer can use compatible PC 80286 or PC.
Desktop or portable computers above 80386 require a hard disk capacity of more than 20MB, and there is no special requirement for technical performance. Processing and editing survey data.
ESSDUMP software: ESS probe software with single-point, multi-point or MS3 measurement functions while drilling, which can be loaded by ground computer. ESS 0 1
It is a single-point measurement and probe performance debugging software, ESS 02 is a multi-point measurement software, and ESS 05 is MS3 measurement while drilling software.
MAP software: initialization setting, data input, measurement data output and editing of ESS probe can be carried out by ground computer.
UTV software:
The data files generated by map software can be edited on the ground computer and further modified into different measurement reports or drawing data files. The software can be used to modify, compare and analyze measurement data in different ways.
Titanium thermosensitive terminal
TI thermal terminal, as the external equipment of ESS probe microprocessor system, can be used as the data terminal of ESS probe microprocessor system. It can be used to retrieve measurement data from the probe tube that has been drilled.
dot matrix printer
Generally, EPSON LX-8 10 printer is selected as the external equipment of the ground computer system to provide the output and printing of measurement data reports for ESS electronic multipoint inclinometer system.
Probe protection barrel assembly and auxiliary tools
The probe protection barrel assembly is made of non-magnetic materials, which protects the probe from the high pressure of mud in the borehole and reduces the impact force of downhole instruments.
The auxiliary tool is mainly to assemble and test ESS electronic multipoint inclinometer.
The third section instrument characteristics
There are three connection modes between ESS probe and ground equipment. ESS probe can be started, set and output data in different ways. Through the ground computer, TI
Thermal terminal or dot matrix printer can display or print out measurement data or working state data. The ground data processing system adopts IBM.
Compatible computers improve the versatility of surface instruments, and can run electronic multipoint measurement software and other directional well and horizontal well calculation software on the same surface computer. ESS electronic multi-point inclinometer has the function of analyzing and correcting magnetic parameters, which can eliminate the magnetic interference of downhole drilling tools.
The measuring instrument system has the function of magnetic scanning, and the magnetization of nonmagnetic materials such as nonmagnetic drill collar, nonmagnetic centralizer and instrument outer cylinder can be checked by running the magnetic scanning program. The microcomputer system of ESS probe has the function of fault and state diagnosis. In the process of measurement, it can detect the power supply, working state, measurement environment and other information from the downhole probe pair, and can display or print it.