is designed for casing, cement bond and rock perforating.

Description

Features and advantages

  • formation perforating without casing impacting;
  • large-size perforated holes with a fine working edge;
  • perforating during repair operations in multistring well sidewalls for annular space cementing;
  • selective formation perforating of interlaced permeable and packed rock layers;
  • thin bed drilling-in.

PS-112/70 drilling perforator may be used within the wells drilled with a 190-215.90 mm bit and cased with 146-168 mm casing pipes. It is to be run with logging unit and logging truck hoist equipped with a three-core logging cable up to 4,200 m long or a seven-core logging cable 5,400 m long.

Specifications

Max. operating pressure, MPa

80

Max. operating downhole temperature, °C

150

Max. perforations quantity per trip

up to 35

Instrument dimensions, mm:

diameter

length

 

15

70

Power supply voltage, V

380

Power consumption, kV·A

up to 2.5

Reinforced tension capability at the cable head zone for

emergency tool breakout, kg

 

500

Downhole tool dimensions, mm:

diameter

length

 

112

2350

Weight, kg:

downhole tool

delivery set

 

80

135

Results

The examples of productive formation opening-up

Opening-up method impact on formation productivity

Certificate