Performance Where It Matters Most
InPulse™ is a next generation perforating charge family engineered to unlock higher reservoir connectivity, improved breakdown performance, and faster stage execution.
By integrating a specially designed energetic material into the charge liner, InPulse delivers a secondary pressure pulse that dramatically increases usable tunnel volume, reduces high-density debris away from the entry hole (resulting in a cleaner, more conductive tunnel), and enhances fracture initiation across unconventional, Saltwater Disposal, and conventional reservoirs.
Perfect For:
•North American shales
•Horizontal unconventional wells
•Saltwater Disposal (SWD)
•Conventional completions
•Custom entry-hole requirements
What Makes InPulse Different
Unlike traditional or reactive shaped charges, InPulse incorporates a specially engineered energetic material directly into the liner.
This energetic material delivers a self-contained secondary deflagrating event, independent of formation fluids or reservoir conditions, following the primary perforation event.
The Dual-Stage Advantage
Stage 1 – Primary Perforation Event
Stage 2 – Secondary deflagrating pulse
Observed micro-fracturing enhances near-wellbore connectivity without diverting fracture growth away from the intended stimulation geometry.
| Charge Type | Liner Type | Jet Heat Duration | Secondary Reactive/Energetic Heat and Pressure Effect | Approx. Temp |
|---|---|---|---|---|
| Standard | Standard | Microseconds | No Secondary Reactions | 2000°C |
| Reactive | Thermite | Microseconds | Heat and Pressure are Milliseconds | 2500°C (needed to vaporize formation fluid in order to work) |
| InPulse | Energetic Material | Microseconds | Heat is Microseconds, Pressure is Milliseconds | 2000°C |
Improved Treating Efficiency
•Lower breakdown pressures
•Faster time-to-rate
•Reduced stage time
•Lower acid requirements in some formations
Enhanced Production & Injectivity
•Higher Productivity Index (PI)
•Better injectivity for Saltwater Disposal wells
•Greater stimulated reservoir volume (SRV) in unconventional plays
Cleaner, Higher-Quality Tunnels
•Optimized debris profile
•Reduced high-density debris
•Enlarged, usable tunnel volume (up to 90% improvement)
Simple Integration — No Special Hardware
•Fits standard carriers
•Wireline and TCP ready
•No additional components or special handling required
The InPulse charge family delivers high-energy, low-variability entrance holes optimized for unconventional completions. Shot across a wide range of casing sizes and weights, InPulse provides repeatable ballistic performance that operators can rely on for stage design, breakdown efficiency, and fracture initiation.
Core Lab’s ballistic program validates charge performance under representative field conditions, ensuring every test reflects real-world well architecture.
Performance Range Details
Typical Entrance Hole Diameter:
0.33″ – 0.55″ depending on casing size, weight, and charge selection
Actual verified values by casing are shown below.
(For specific frac design, Core Lab provides full test reports on request.)
InPulse™ Entrance Hole Performance Summary Measured Ballistic Data – P-110 Casing Programs
EOF-3123-333 (0°, 12 o’clock Shots)
| Casing Size | Avg. EH (in.) | % StDev | Test Ref |
|---|---|---|---|
| 5.5″ 23# P-110 | 0.33 | 2.1% | PRJ-1329-LTR-09 |
| 4.5″ 11.6# P-110 | 0.42 | 1.2% | PRJ-1329-LTR-10 |
EOF-3124-342 (6spf, 60° Phasing)
| Casing Size | Avg. EH (in.) | % StDev | Test Ref |
|---|---|---|---|
| 5.5″ 23# P-110 | 0.42 | 6.5% | PRJ-1329-LTR-09 |
EOF-3124-336 (6spf, 60° Phasing)
| Casing Size | Avg. EH (in.) | % StDev | Test Ref |
|---|---|---|---|
| 5.5″ 23# P-110 | 0.36 | 2.0% | PRJ-1329-LTR-10 |
| 5″ 18# P-110 | 0.40 | 3.3% | PRJ-1329-LTR-10 |
| 4.5″ 11.6# P-110 | 0.40 | 1.2% | PRJ-1329-LTR-10 |
EOF-3124-335 (6spf, 60° Phasing)
| Casing Size | Avg. EH (in.) | % StDev | Test Ref |
|---|---|---|---|
| 6″ 22.3# P-110 | 0.33 | 1.1% | PRJ-1329-LTR-04 |
| 5.5″ 23# P-110 | 0.35 | 2.3% | PRJ-1329-LTR-04 |
Field-Proven Operator Results
InPulse has been deployed across West Texas and South Texas multi-well developments, delivering strong performance that far exceeds traditional perforation charge performance in unconventional plays.
Major Observed field results include:
- Improved proppant placement efficiency, increasing from 50-60% (up to 100% in some applications)
- Faster time-to-rate, with up to 10 minutes reduction per stage
- Reduced treating pressures, typically 1000-3000psi lower than conventional charges (up to 30% lower treating pressures)
- Higher stage efficiency, enabling more stages placed per day
Designed For Today’s Reservoir Challenges
Unconventional – Frac Optimization
- Engineered to enhance fracture propagation, increasing stimulated reservoir volume—especially in tight shale systems.
Saltwater Disposal – Lower Injection Pressure, Higher Injectivity
- Reduced crushed-zone damage creates smoother flow pathways, improving early-life injectivity and reducing required operating pressures.
Conventional – Cleaner Tunnels, Better Productivity
- An optimized debris profile improves wellbore connectivity for production and injection.
Why Operators Choose InPulse
Simple. Fast. Reliable.
Faster stage execution → improved operational efficiency
- More productive fractures → better long-term EUR
- Cleaner perforations → less post-perf intervention
- Operationally simple → no additional hardware or procedural changes
Reservoir-tailored options → better alignment to well conditions