As many Texas oil and gas lease owners know, fracing creates new channels in rock that can increase extraction rates for the recovery of fossil fuels. However, some claim that the process contaminates groundwater or risks air quality. The traditional process works by pumping fracturing fluid into the well-bore at a sufficient rate to increase down-hole pressure. But a new technology is on the horizon to achieve the same results without using water. This new process is only a few years old and was largely invented by Robert Lestz, the chief technology officer at GasFrac Energy Services Inc.
The Process & Benefits
Waterless fracing works with almost the same process as traditional methods, but it replaces the traditional mixture of water, sand, and chemicals with a thick gel made from propane. The company claims this petroleum gel is as natural to a well as soil is to the earth. This gel is called “liquefied propane gas,” or LPG for short. LPG has the added advantage of reverting to vapor while still underground, and it therefore returns to the surface in a recoverable form. Also, unlike water-based methods, LPG does not carry chemicals used in drilling back to the surface. In that way it requires less post-job cleanup and almost no flaring. Another benefit of this new technology is that it is more efficient, because the fracturing fluid can be recovered and re-used or re-sold, saving the oil and gas producer substantial expenses.


