33⁄8-in HSD High Shot Density
Perforating Gun System
High shot density with optimal phasing and featuring PowerJet
deep penetrating shaped charges
APPLICATIONS
■■
Natural, stimulated, and sand
control completions
■■
Completion restrictions
■■
Deep penetration
■■
Multiple-interval perforating
The 33⁄8-in HSD* high shot density perforating gun system is for operations
in 4½- to 5½-in casing but has applications in completions where
downhole restrictions limit gun size, including through-tubing, dualcompletion, monobore, and extended-reach operations.
The standard 33⁄8-in HSD gun has a 60° spiral hole pattern and can be
loaded with a choice of charges up to 6 spf. This configuration is ideally
suited for fracture stimulation operations that require 120° or 60° phasing
and charges that provide a large entrance hole. A 4-spf, 180°-phased gun
is also available for alignment with the preferred fracture plane (PFP).
For sand control, the 33⁄8-in HSD gun can be used at 12 spf with 135°/45°
phasing and PowerFlow* slug-free big hole shaped charges to maximize
the area open to flow. For sand prevention, the optimized phasing
prevents failure of the sand around the perforation cavity and minimizes
perforation-to-perforation collapse.
Where deep penetration is critical—for natural completions, penetrating
beyond formation damage, or in hard formations—the PowerJet* 3406
deep penetrating shaped charge is used. Specifically developed for
perforating operations in formations with high compressive strength, the
charge penetrates deeper than 19 in into Nugget sandstone targets.
The 33⁄8-in HSD guns can be conveyed using wireline, slickline, tubing,
or coiled tubing. Multiple guns are easily aligned with intercarriers.
Mechanical Specifications
Outside diameter, in
Shots per foot (spf), phasing, °
Shot spacing, in
Temperature rating, degF [degC]
Pressure rating, psi
Min. casing size, in
Nominal lengths, ft
Interval missed between guns, in
Max. outside diameter including burrs, in
Loaded 20-ft gun weight in air, lbm
Tensile load, lbf
3.275
With fin standoffs: 4.4
4, 60; 4, 180; 5, 180
6, 60; 12, 135/45
4 spf: 3; 5 spf: 2.4
6 spf: 2; 12 spf: 1
400 [204]†
20,000
4½
5, 10, 20, 30
12
Shot in liquid: 3.66
Shot in gas: 3.70‡
351§
147,000††
† With
high-temperature explosives and seals
for gas using UltraJet* deep penetrating shaped charges and HyperJet* casing perforating charges
§ Depends on gun configuration and charge type
†† Based on worst-case material and machining tolerances
‡ Rated
3 3⁄8-in HSD gun, 12 spf,
135°/45° phasing.
33⁄8-in HSD High Shot Density Perforating Gun System
180°
45°
60°
12 spf
6 spf
180° 270° 0° 90° 180°
0 in
180° 270° 0°
0 in
4 spf
90° 180°
180° 270° 0° 90° 180°
0 in
1 in
2 in
12 in
12 in
24 in
24 in
6 spf, 60° Phasing
3 in
12 in
24 in
12 spf, 135°/45° Phasing
51⁄ 2-in Casing
4 spf, 180° Phasing
Shot patterns for the 3 3⁄8-in HSD gun system for 4½- and 5½-in casing.
API Statistics†
API RP 19B shot in 4½-in 11.6-lbm/ft casing (PowerFlow charge shot in 5½-in, 17.0 lbm/ft-casing)
Charge
Explosive
Burr
Shots
Entrance
Area
Penetration,
Type, Max.
per Foot,
Hole, in
Avg./Max., Open
in
Weight, g
Phasing,°
in
to Flow,
in2/ft
PowerJet 3406‡
HMX, 22.7
6, 60
0.37
0.06/0.09
–
36.5
PowerJet 3406‡
HNS, 25.0
6, 60
0.31
0.05/0.10
–
28.8
UltraJet 3406‡
HMX, 22.7
6, 60
0.44
0.06/0.13
–
31.4
HyperJet 3406
RDX, 22.7
6, 60
0.49
0.06/0.11
–
23.5
34B CleanSHOT*
RDX, 21.7
6, 60
0.31
0.04/0.08
–
18.5
34JL UltraJet
HMX, 21.7
6, 60
0.37
0.06/0.09
–
28.9
PowerFlow 3412‡
HMX, 14.2
12, 135/45
0.64
0.07/0.10
3.86
4.5
PowerFlow 4621‡
HMX, 19.4
5, 120
0.81
0.08/0.11
2.58
5.9
Temperature,
degF
Target
Strength,
psi
Test Date
1 h: 400
100 h: 300
1 h: 500
100 h: 460
1 h: 400
100 h: 300
1 h: 340
100 h: 240
1 h: 340
100 h: 240
1 h: 400
100 h: 300
1 h: 400
100 h: 300
1 h: 400
100 h: 300
6,868
04/2004
7,782
09/2004
7,051
01/2007
6,030
06/2000
5,991
04/1996
6,404
08/1996
7,131
01/2003
5,992
03/2006
† Entrance
‡ API
hole, penetration, temperature
19B Registered Perforation Systems
www.slb.com/perforating
*Mark of Schlumberger
Copyright © 2014 Schlumberger. All rights reserved. 13-PE-0012

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