Innovative New Frac Manifold Trailer Offers Step Change in Slickwater Pumping
- Ronald Gusek (Liberty Oilfield Services) | Ghasripoor Farshad (Energy Recovery)
- Document ID
- Society of Petroleum Engineers
- SPE Annual Technical Conference and Exhibition, 28-30 September, Houston, Texas, USA
- Publication Date
- Document Type
- Conference Paper
- 2015. Society of Petroleum Engineers
- 2 Well completion, 4.1.2 Separation and Treating, 4 Facilities Design, Construction and Operation, 3 Production and Well Operations, 4.1 Processing Systems and Design, 2.5.2 Fracturing Materials (Fluids, Proppant), 2.5.3 Fracturing Equipment, 2.5 Hydraulic Fracturing, 2.2 Completion Installation and Operations, 2.4.3 Sand/Solids Control
- Fracturing, Manifold, Missile, Slickwater, Erosion
- 1 in the last 30 days
- 206 since 2007
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It has been more than 15 years since the idea of slickwater fracturing was proposed as an effective means of stimulating unconventional reservoirs. Since then, the use of slickwater treatments has grown to represent a significant portion of hydraulic fracture treatments pumped in North America today. The growth in the use of low viscosity fluids has not been without its challenges, specifically around equipment. Historically, lower pumping rates and higher viscosity fluid protected many of the wear surfaces in a pump from the erosive properties of sand. Today, repair and maintenance of fracturing pumps due to erosion from proppant pumped at high rates in low viscosity fluids is a major expense, and can be a significant contributor to operational downtime for that equipment.
This paper examines an innovative new technology that enables a step change in how slickwater fracture treatments are pumped. The unique manifold trailer, or "missile", allows for proppant-laden fluid to be pumped downhole at fracturing pressures without passing through a frac pump. This process of pressurizing the slurry is accomplished using a device called a pressure exchanger. The pressure exchanger functions by taking energy from high pressure clean fluid and transferring that energy to low pressure slurry, the outcome being a high pressure slurry stream and a low pressure clean stream of fluid. It accomplishes this function using only one simple rotating component within an outer housing. It has no bearings or valves, and is manufactured from tungsten carbide to maximize durability and minimize wear. By utilizing the unique pressure exchanger technology, fracturing pumps are no longer required to pump slurry laden fluid, but simply to pressurize a clean fluid stream from which the energy is subsequently extracted. By removing proppant from the fluid stream that passes through the pumps, wear and tear on the pump, and specifically on components such as valves and seats, is expected to be reduced significantly.
The paper will discuss the design and function of the new missile and its key component, the pressure exchanger. It will also examine the results of the yard test and the potential impact on the life of pump components as a result, as well as highlight operational differences vs current technology.
|File Size||1 MB||Number of Pages||11|