An Innovative Approach to Utilize Blowdown System Waste to Improve Production in Steamflood Field

Abstract In steamflood operations, steam quality is crucial for injection efficiency. The blowdown system removes excess fluid and maintains target injection quality. It delivers high-temperature fluids that can enhance production. The PGL (Production Gathering Line) experiences low temperatures and high pressures, necessitating additional thermal energy to improve flow rates. This paper investigates the reuse of blowdown fluid, which was previously considered waste, by reinjecting it into the PGL to increase temperature, reduce pressure, and optimize fluid transfer for better performance. This implementation was applied in Area-X, where the PGL system experiences low temperatures and high pressures, which hinder oil mobility. To address this, the project team designed a connection between the blowdown system and the PGL using detailed calculations and collaboration with multidisciplinary teams. A skid unit was developed to regulate the blowdown steam system according to the PGL's needs. The analysis also considers surface facility limitations concerning exposure to high-temperature fluids. This method aims to increase temperature, improve flow rates, and optimize production efficiency by reusing thermal energy while minimizing energy waste. Several key parameters were evaluated to assess the success of the applied method. This included comprehensive monitoring of the system conditions before and after using the steam blowdown energy, which had previously been considered waste. The energy was reinjected into the Production Gathering Line (PGL) to improve overall system performance. Pressure and temperature surveys were conducted throughout the system, with well testing performed on surrounding wells to confirm the system's response. The results revealed a significant temperature increase in the PGL, from 121°F to 152°F, demonstrating an improvement in heat transfer efficiency. Additionally, the production header line pressure decreases from 45 psi to 38 psi, reflecting a more efficient fluid flow through the system. As a result of these improvements, production increased notably, with fluid increasing by over 1,000 BFPD and oil production increasing by more than 100 BOPD. This confirms that the method is effective in optimizing flow rates and boosting production. Moreover, this approach not only focuses on enhancing production but also promotes efficient and environmentally responsible energy resource management. The solution addresses current energy challenges by minimizing environmental impact and supporting sustainability, while ensuring long-term benefits for both production efficiency and resource optimization. This paper discusses the relationship between transferring waste energy and its impact on production flow rate parameters. In steamflood field surface production systems, low temperatures are primarily correlated with higher pressures, resulting in congealed oil because of low temperatures in heavy oil reservoirs. The focus is on increasing temperature, after which improvements in production are expected to follow.