Scorpion 73

Single-use hollow-carrier perforating system for deployment on wireline, coiled tubing, or tubing.

Characteristics of the Scorpion 73 perforating system
Parameter Value
Outer diameter, mm

  -  without installed centralizers  73  
  -  with installed centralizers   102  
Minimum casing drift diameter, mm

  -  without installed centralizers   88
  - with installed centralizers   102
 Maximum allowable operating temperature, when held for 1 hour, °C (170-200)±51) 
Maximum allowable hydrostatic pressure, MPa  80-1402) 
Maximum carrier diameter after perforator firing, mm:  
in a liquid environment 79
in a gas environment 81
Perforator section length, m 1/2/3/4/5/6
Maximum length of a multi-section perforator assembly, m:  
on wireline Depending on the perforator modification
on tubing Limited by the load capacity of the firing head and plate
Specific mass of a loaded section, kg/rm3) 15.1
Maximum wellbore dogleg severity, deg/10 m:  
for a multi-section perforator of standard design 5.0
for a multi-section perforator using articulated joint assemblies (SHUS or SHUS-A): for sections 1/2/3/4 m long 21.5/12.5/6.5/5.0
Phase orientation of standard perforator charges, deg.4) 60

1) The maximum allowable operating temperature and holding time of the loaded perforator are determined by the operational documentation for the EM (explosive materials) having the lowest allowable application temperature compared to the other EMs included in the explosive train of the perforator, as well as by the characteristics of the rubber products used.

2) The maximum allowable pressure may vary depending on the mechanical properties of the carrier tubes.

3) Mass of a running meter of a fully loaded section excluding the mass of reusable elements.

4) Phasing can be changed by special order.   
Characteristics of the applied charges
Shaped charge name Charge type Total explosive mass in the charge, g1) Perforation density, shots/m/phasing, deg.
   Average parameters of charge penetration performance, mm
Indicators on a QC-type composite target Indicators according to API 19B
Penetration depth  Entrance hole diameter      Penetration depth  Entrance hole diameter
Scorpion PP-20DP DP 14.3-16.8 20, 18, 16, 13, 102)/
60
750 11 846 9.9
Scorpion PP-20SDP  SDP 950 10 980 9.1
Scorpion PP-20BH  BH 17.3-19.8 380 17.5 - -
Scorpion PP-20SBH  SBH 18.3-20.8 210 21.5 216 21.24

1) Depending on the explosive material used in the charge.

2) Maximum perforation density in a gas environment.

Phasing and layout
CONTACT US

We are always available and ready to answer your questions

Submit a request

Fill out the form and we will contact you within one business day