GEO-7 (Downhole Universal Combained Tool)

GEO-7 (Downhole Universal Combained Tool)

GEO-7 (Downhole Universal Combained Tool)

Purpose.

GEO-7- new combined multi-purpose tool that allows you to work in both the cable and self-contained modes. Also self-contained mode is available, when tool works in cable mode. The information is recording into the internal memory of the tool. Thus, increasing reliability of operation – it is always possible to get the recorded information from the internal memory if a logging panel fails. In addition it should be kept in mind that the information at the logging panel records in depth format, but the information at the internal memory of the tool records in time format, So, you can get a full data of the work (in time or on the depth) with GEO-7 tool on the well.

The main channels of the GEO-7 are similar to a GEO-6 tool. Additionally in the cable mode, you can control the settings of the tool: power supply voltage, voltage into the tool, the tool’s inner temperature. Connection with PC is via USB.

New GEO-7 has a flexible architecture that can to solve a very wide range of tasks in geophysical exploration. The tool consists of a base module, which concentrated the main measurement channels, and the additional module, which can have up to 8 measurement channels. An additional module can serve:

  • Resistivity meter and capacitance water holdup;
  • Multichannel capacitance water holdup with distributed sensors for the study of horizontal wells;
  • Sound level meter;
  • Highly sensitive thermometer;
  • Any set of channels on demand of the customer.

Standard single-contact flow-meter shall be connected to an additional module or it can be connected directly to the main module (instead of the additional module). It is possible to connect an additional second inline flow-meter.

The tool has an adapter to work on a cable, which allows you to use it as a cable tool. Data format is the same as the cable tool GEO-4K. This format is supported by the following types of logging panels/registrars:

  • Gektor (CJSC NPF "Elikom");
  • Vulkan V2, V3 (CJSC NPF "Elikom ");
  • Spektr (OJSC "BNGF");
  • CarSAR-500 (LLC "GeophizTekhnika" Saratov city);
  • Geofit (OJSC NPF " Geofit VNK" Tomsk city);
  • Vektor-3, Vektor -4, Vektor -5, Vektor -6 (LLC PKF "Geotekh").
  • MEGA-MAX
  • Kedr-02
Parameter Value
The number of recording channels (parameters) from 1 to 9
Pressure channel
Measuring range, kgf/sq.cm 0-600, 0-800
Number of bits of ADC 16
The relative error, % +/- 0.15
Absolute error, kgf/sq.cm 0.9\ 1.2
Pressure resolution, % 0.0015
Pressure resolution,* kgf/sq.cm 0.008
Temperature channel
Measuring range, °С 0...+100, 0...+120, 0...+150
Number of bits of ADC 16
Absolute error, °С 0.5
Temperature sensitivity, °С 0.003
Time constant, sec 1.2
Gamma-rays channel
Measuring range, microR/hour 0...50
Sensitivity, imp/min on 1 microR/hour, not less than 150
Relative error, % +/- 15
Casing Collar locator channel
Signal/noise ratio, not less than 5
Flow-meter channel
Design options of flowmeters:  
Flow-meter diameter 30 mm, 20 mm diameter polyamide spinner, range, m3/hour 3-250
Flow-meter diameter 38 mm, 27 mm diameter polyamide spinner, range, m3/hour
Open/close flow-meter diameter 38/110 mm (opened/closed), rubber spinner diameter 60 mm, range, m3/hour 0.5-50
Thermal indication channel
Overheating sensor in still water, °C, not less than 1
Time constant, sec 3
Resistivity meter channel
Conductivity measuring range, Sm/m от 1 до 50
Absolute error, Sm/m, not more than

1

Thermal care zero, Sm/m, not more than 0.1
Capacitance water holdup channel
Measuring range, % \ units. 0...60 \ 0...1
Absolute error, % \ units 10 \ 0.1
Power supply
Power source 2 batteries CR123 1-1.5 Ah capacity (for work up to 120°C) or Accumulator 18650 2.2 Ah capacity (for work up to 95°C) or 1 battery 10 Ah capacity (for work up to 150°C)
Current consumption (depends on cylce), mA, not more than Work mode – 0.1...4; standby mode (delay) – 0.1
Tool memory
Amount of memory of the tool 4 Mbytes or 308 955 points (with all channels), may be increased up to 8 Mbytes
The time of storage of information 10 years
Filling time memory (5 channels on), h 30
Number of write cycles in the internal memory 10 000
Time parameters
Cycle time (measurement period), sec 0.125-125
Delay time of writing of the tool, h Up to 255
Work time with cycle 0.25 sec and 9 channels (T, P, LM, GK, STI, Q, Q2, VL, REZ) 1 802 minutes or over 30 hours
All memory reading time, min About 2
Range of starting programs by pressure, kgf/sq.cm from 0 to 600 with step 1
Interface USB
Inner power source current consumption (accumulator or batteries):  
- Sleep mode, mA not more than 0.1
- Cable mode with core cable wire current over 10 V, mA not more than 0.02
- connection via USB, mA not more than 0.02
- Main module without GK and without STI heater, mA 8
- GK channel, mA additional 25
- STI heater channel, mA additional 130
- Flow-meter module, mA additional 3.5
- Additional module, mA additional 5
Size
Length (with one flow-meter, without centralizer), mm 1600
Diameter, mm 30-42
Weight, kg, not more than 8-18
Model Diame­ter, mm Pres­sure, MPa Tempe­rature, °C Description
GEO-7-30 MPa/°С3060, 8095Channels: TEMP,PRES,GK,CCLL,STI,FLOW Power source - Accumulator
GEO-7-30 MPa/°С3060, 80100, 120, 150Channels: TEMP,PRES,GK,CCLL,STI,FLOW. Power source - Battery
GEO-7-32 MPa/°С3260, 8095Channels: TEMP,PRES,GK,CCLL,STI,FLOW. Power source - Accumulator
GEO-7-32 MPa/°С3260, 80100, 120, 150Channels: TEMP,PRES,GK,CCLL,STI,FLOW. Power source - Battery
GEO-7-38 MPa/°С3860, 8095Channels: TEMP,PRES,GK,CCLL,STI,FLOW,FLO2. Power source - Accumulator
GEO-7-38 MPa/°С3860, 80100, 120, 150Channels: TEMP,PRES,GK,CCLL,STI,FLOW,FLO2. Power source - Battery
GEO-7-42 MPa/°C4260, 8095Channels: TEMP,PRES,GK,CCLL,STI,FLOW,FLO2. Power source - Accumulator
GEO-7-42 MPa/°C4260, 80100, 120, 150Channels: TEMP,PRES,GK,CCLL,STI,FLOW,FLO2. Power source - Battery
GEO-7.2-38 MPa/°С3860, 8095Channels: TEMP,PRES,GK,CCLL,STI,FLOW,FLO2. Power source - Accumulator (2 Blocks)
GEO-7.2-38 MPa/°С3860, 80100, 120, 150Channels: TEMP,PRES,GK,CCLL,STI,FLOW,FLO2. Power source - Battery (2 Blocks)