Four-knife perforators

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4-knife perforator

Purpose

The perforator is designed for the secondary opening of productive formations of oil and gas wells by forming longitudinal slots and blurring the bottomhole zone through these slots.

The perforator allows you to simultaneously form 4 slots with a phasing of 90 degrees and simultaneously wash 8 caverns to a depth of one meter.

Features

A distinctive feature of the models of size 146 and larger is the ability to mount the downhole motor and reamer to the bottom connection thread and to perform reaming before and after well perforation in 1 downhole operation.

Design possibilities

The design allows the following operations to be carried out through the technological holes of the perforator:

 

  • replacement of well fluid volume before and after perforation;
  • acid treatments;
  • well development by compression, swabbing, including hydrodynamic research.

 

The perforator allows you to kill the well after cutting the downhole valves.

Specifications

Model

Outer diameter, mm
80
Overall length, mm
1700
Weight, kg
50
Number of monitors, pcs.
8
Slot width, mm
9
Knife output relative to the body, mm
20
Connecting thread
НКТ-60
Distance between monitors, mm
100
Working ball, mm
17
Emergency ball, mm
23,8
Knock down ball, mm
40
Service
Complex plastic perforation of wells Learn more

Implemented projects

Application of Clean Well technology (well bottomhole normalization after hydraulic fracturing) at Rosneft facilities in Khanty-Mansiysky Okrug

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Project PitMSFrac, Bashkortostan

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Development of wells with a jet pump during geological exploration in the Yamalo-Nenets Autonomous District

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Project “PEV – Online”, Irkutsk region

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