Bakken Independent Study
Production Enhancement Study:
• Post-job production history match (PHM), forecasting and discrete fracture network (DFN) pressure match (PM) fracture modeling was conducted for wells in several Basins (DJ, Williston, Midland and East Texas) to evaluate as-pumped created and propped fracture geometry in order to develop a calibrated fracture model to evaluate designs ranging from Slickwater to Hybrids and compare the resulting Production Uplifts, as well as Potential Reduction of Clean Frac Volume. The pump schedule, included slickwater (SW), linear gel (LN), and crosslinked gel (XL) using a Oxidative breakers or Hallux Mannanase HT Enzyme breaker as shown in Table 1. The conductivity indicated by the wells production history match was defined as the baseline for the oxidizing breaker. Regained proppant pack permeability testing results and rheology properties of the Mannanase HT enzyme breakers were incorporated into all the modeling.
Independent Regained Conductivity Testing shows:
•Oxidative Breaker (commodity chemical): 30-40% Proppant Pack Clean-Up
•Hallux Mannanase HT (US Patents #10,227,523 and 11,401,457, and 12,227,695): 90-100% Proppant Pack Clean-Up
Pressure Match & Design Fracture Composite Results:
•Production Forecasts show a range of 24.3 to 74.2% production uplifts when using Hallux Mannanase HT (Enzyme breaker) compared to the Oxidizing breakers used in typical designs
•Clean Water Volume Reduction range of 23 to 46% when adjusting pump schedules/frac designs as suggested
Design Production Modeling
Production forecast shows Design 3 and Design 4 with the best performance using a hybrid & full crosslinked gel system with MHT enzyme breaker (Table 3). The designs show an increase of 27%, compared to Bakken Well 2H & 3H, or 59 Mbbl at 1 year. Design 2 results in lower production with BHL-48 oxidizer breaker. Design 1 and Bakken Well 2H & 3H PM show similar performance with slickwater HVFR treatment.
Pressure Match & Design Fracture Composite Model Report
Williston Basin Study – Middle Bakken
Fracture Model Plots
Analog Pressure Match - Baseline analog used for calibration to measured pressure and proppant response. Propped height 151 ft, propped half-length 219 ft, regained conductivity 0.51 mD-ft. Represents historical Oxidizer treatment performance used to anchor redesigned enzyme-based cases.
Design 1 - Slickwater design benchmark with limited fracture cleanup and conductivity retention. Propped height 156 ft, propped half-length 212 ft, regained conductivity 0.53 mD-ft.
Delivered ~2.3% production uplift at 1 year, establishing the reference baseline for optimization.
Design 2 - Hybrid slickwater-linear-crosslink design with BHL-48 oxidizer breaker.
Propped height 128 ft, propped half-length 188 ft, regained conductivity 0.57 mD-ft.
Showed only 3.2% uplift at 1 year, indicating limited conductivity recovery and incomplete fracture cleanup versus enzyme systems.
Design 3 - Hybrid slickwater-linear-crosslink design with Hallux Mannanase HT enzyme breaker. Propped height 129 ft, propped half-length 168 ft, regained conductivity 1.23 mD-ft. Demonstrated 28.7% uplift at 1 year and sustained conductivity gains, confirming superior cleanup and proppant pack integrity.
Design 4 - Full crosslinked gel design with Hallux Mannanase HT enzyme breaker for high-viscosity cleanup. Propped height 141 ft, propped half-length 153 ft, regained conductivity 1.44 mD-ft. Yielded 26.9% uplift at 1 year, closely matching Design 3 while maintaining greater fracture containment.
Production Forecast
Forecasted production: Design 3 (green) is a hybrid pump schedule with Hallux Mannanase HT enzyme breaker & Design 4 (orange) is a full crosslinked pump schedule with Hallux Mannanase HT enzyme breaker resulting in ~28% improvement at 1 year over the baselines.