Working in the Permian and Delaware basins, Admiral Permian Resources had been challenged by increasingly higher pressures on a gas injection project. Their current solution had been failing, resulting in shutdowns and, ultimately, re-evaluation.
Viable alternatives were elusive—all had their limitations, most were costly. Steel could accommodate the pressure and temperature requirements, but was expensive, inflexible, and had a higher friction coefficient at smaller diameters that would impede flow performance. Alternative RTP solutions either couldn’t handle the pressures or were themselves too pricey.
Those costs wouldn’t be limited to material, either. There would be installation to consider, and the corresponding downtime and loss of productivity impacting the bottom line.
Admiral needed a cost-effective solution that would handle their pressure needs while minimizing fluid friction and non-productive downtime. Polyflow was there to provide a solution.
Engineers at Polyflow recommended Thermoflex. Manufactured at the company’s facility in Midland, Texas, Thermoflex is a cost-effective spoolable RTP solution featuring a proprietary four-layer design that allows it to be adapted to a wide range of operating parameters, including higher pressures.
Kevlar® Aramid Fiber Reinforcement provides strength for higher pressures and tensile loads, up to 2,000 psi based on pipe diameter. An inert inner liner offers low permeation and high resistance to hydrocarbons, H2S, and CO2. A center layer provides strength for higher temperatures, up to 180°F. And an HDPE outer jacket provides abrasion resistance and maintains the integrity of everything inside.
The recommended solution would be a 3-inch pipe rated at 1,500 psi, which would meet Admiral’s pressure needs without derating or permeation issues. Even better, the product featured an extremely low friction coefficient, so it wouldn’t sacrifice capacity or performance. Operators were able to use a wide variety of available diameters—from 2-3/8 inches to 6 inches—to maximize flow velocity for individual applications.
Once in place, the Thermoflex system performed without issue, which prompted Admiral to subsequently install six-to-eight thousand feet every month for the foreseeable future.
Compared to the previous solution, Admiral was able to save over 10 percent on material cost on the comparable-sized, performance-limited polyethylene and another 15 percent on installation; downtime was virtually eliminated for pipe constraints.
“Thermoflex was a game-changer for us,” said Wayne Light, Construction Foreman. “To date, we’ve installed almost 100 miles and have yet to encounter any sort of compromise on performance or budget.”