SKL-A-102 hardware-software independent complex for geophysical surveying of the production wells

serves for geophysical surveying of the open boreholes of the horizontal and directional wells of 120-245 mm diameter being drilled for oil and gas, both while tripping the complex in and while tripping it out. The complex runs to bottomhole on a drilling tool.

Advantages of the Complex:

  • geophysical surveying is performed during one trip
  • reduction of downtime
  • low sticking hazard
  • estimation of relative dielectric permeability, which allows to separate oil-saturated reservoirs from the reservoirs washed with fresh and mixed waters

Methods used:

  • VEMKZ (High frequency electromagnetic logging)
  • IK (Induction logging)
  • BK (Lateral logging): LLS, LLD
  • BKZ (Lateral logging sounding):
    0,2 0,1 N;   A 0,4 M 0,1 N;  1,0 M 0,1 N;   2,0 M 0,5 N;
    A 4,0 0,5 N;  N 0,5 M 2,0 ;  N 13 M 0,5
  • SP (Self-potential of the well)
  • Resistivity logging
  • 2 NNKt (Compensated neutron-neutron logging on thermal neutrons): NTNL,FTNL
  • GGK-P (Gamma-gamma density logging)
  • GK (Gamma logging)
  • Directional survey: zenith angle 0- 120; azimuth 0- 360;
  • Temperature logging

Technical characteristics of the Complex:

Range of working temperatures, + 5 to 150
Max hydrostatic pressure, MPa 100
Diameter of a module, not more than, mm 108
Length of each module, not more than, m 4
Range of resistivity measurements, Ohmm:  
for VEMKZ-20 0.2—200
for BKZ gradient-probe 0.2—5000
for BKZ potential-probe 0.2—1000
for BK 0.2—10000
Range of specific conductivity, mS/m
for IK 10—2.500
Total length of the Complex, not more than, m 22 
Allowable radius of curvature, not less than, m 60
Allowable axial load, t:  
compressive load, not more than 30
tensile load, not more than 30
Logging speed, not more than, m/hr 1400
when recording radioactive methods, m/hr 400—800
Operating time of the Complex, not less than, hr 16
Weight of the Complex, not more than, kg 600

SKL-A-102 independent complex

SKL-A-102 Complex

SKL-A-102 log



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