Niobrara 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
Pressure Match & Design Fracture Composite Model Report
DJ Basin – Niobrara
Fracture Model Plots
Analog Pressure Match - Niobrara 1H analog pressure match showing propped height 132 ft, propped half-length 185 ft, and regained conductivity 0.51 mD-ft. Represents Oxidizer-based slickwater design with moderate cleanup efficiency and limited conductivity retention.
Design 1 - Slickwater with Oxidizer showing propped height 132 ft, propped half-length 185 ft, and regained conductivity 0.51 mD-ft. Served as the control case, delivering minimal cleanup and establishing the oxidizer baseline.
Design 2 - Hybrid slickwater-linear-crosslink design with Hallux Mannanase HT enzyme breaker showing propped height 193 ft, propped half-length 134 ft, and regained conductivity 1.51 mD-ft. Achieved +41% uplift at 1 year and +19% at 5 years versus the oxidizer baseline model.
Design 3 - Hybrid slickwater-linear-crosslink design with Hallux Mannanase HT enzyme breaker showing propped height 194 ft, propped half-length 137 ft, and regained conductivity 1.28 mD-ft. Produced +35% uplift at 1 year and +16% at 5 years.
Design 4 - Hybrid slickwater-linear-crosslink design with Hallux Mannanase HT enzyme breaker showing propped height 159 ft, propped half-length 136 ft, and regained conductivity 1.73 mD-ft. Delivered the strongest performance with +48% uplift at 1 year and +22% at 5 years.
Production Forecast
Niobrara Analog Well (SW)
Oil & Gas Production
SW vs Hybrid with Hallux Patented Mannanase HT
Comparison of slickwater versus enzyme-treated hybrid systems showing up to 48% 12-month uplift with the Hallux Mannanase HT Enzyme. Hybrid enzyme treatment yields $4.37 MM/year oil and $1.61 MM/year gas improvement versus oxidizer baseline.