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Memory tools

Technology of horizontal and high-inclination wells survey  is based on the usage of memory tools that are conveyed to the bottom with the help of drilling tools. The absence of cable reduces accident rate of works.

There are several options of memory tools. They differ in diameter and tool location when conveyed to the bottom.

Option 1. Tools 73 mm in diameter, placed in light alloy drilling pipes or special containers.

Option 2. Tools 45 mm in diameter, placed in light alloy drilling pipes or special containers.

Option 3. Tools 90 mm in diameter, they use drilling pipes as a housing and end with standard drill threads to ensure direct screwing on the drillstem.

 

  Tools Description
  KASKAD-ASP Surface recorder
  АPRК-2N Radioactive logging memory tool 
  АPRК-3N Radioactive logging memory tool 
  АPRК-GК Integral gamma-ray logging memory tool
  АPRК-GGК-108

Formation density gamma-gamma logging memory tool

  АPRК-NNК Neutron-neutron logging memory tool
  АPRKК-SGК

Gamma-ray spectrometry memory tool

  АPRК-INNК-108

Pulsed neutron logging memory tool 

  5IК-А Induction logging memory tool
  2BК3/5-А Dual laterolog memory tool 
  IFМ-А Ferromagnetic memory inclinometer IFМ-А
  АSPG Acoustic memory profiler
  АSPG-108 Acoustic memory profiler
  АКG

Compensated acoustic logging memory tool 

  4IК-А Induction logging memory tool