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Opportunity

Unconventionals

Opportunity
Specific Challenge

Increase production in low-flow well and solve excessive gas and solids issues.

Region - North America Region - North America

Bakken, North Dakota

Region - North America

Challenge

  • Increase production in low-flow well 
  • Solve excessive gas and solids issues

Solution

The Tiger Shark® SF320 pump was installed for its larger shaft diameter. 

  • The giant shaft allows for greater torque for the flow range, thus mitigating shaft breakage. 
  • The volute design diffuser provides high-efficiency
  • Wide vane configuration handles gas and solids more effectively

Result

  • Achieved well drawdown better than previously used methods and kept production numbers up compared to a rod pump solution
  • In just six months, the increased production generated approximately USD 1.4 million in revenue for the operator

Overview

An operator in the Bakken formation initially used an electric submersible pump (ESP) system and became displeased with the costs compared to other lift solutions. The operator switched to rod pumps, but higher gas rates and drawdown issues caused production rates to drop. Given the conditions, the operator used ESPs over rod lift systems to achieve more incredible production results.

Challenge

Rod lift systems have challenges, especially in extreme conditions with excessive gas and high depths. Gas is compressed within the pump itself before actually producing liquid. Solids fallback is also an issue, particularly in the Bakken formation. The client had wells with pump set depths ranging from 8,500 feet to 9,800 feet (2,591 meters to 2,987 meters) and bottomhole temperatures around 190°F (88°C). The desired results were not achieved with rod pumps, so the client reconsidered ESPs using the latest technology from Halliburton.

Solution

The Tiger Shark® SF320 pump was chosen for its larger shaft diameter to achieve production goals. The giant shaft allows for greater torque for the flow range, thus mitigating shaft breakage. The volute design diffuser provides high efficiency, while the wide vane configuration handles gas and solids more effectively. Liberator™ gas separators were used to separate as much gas as possible from the fluid before entering the pump.

The Tiger Shark SFGH2500 gas handler was used for its open impeller stage design, which handles a higher percentage of free gas going into the pumps and requires less horsepower than competing gas handlers. The Defender® super sand seal was added to this multi-technology solution for extended reliability. The super sand seal has exit ports at the top of the mechanical seal to prevent the swirling effects of abrasives, which destroy shaft seals and radial bearings.

Result

Extensive experience in deep, low-producing wells allowed Summit ESP to achieve well drawdown better than previously used methods and keep the production numbers up compared to a rod pump solution. In just six months, the increased production generated approximately USD 1.4 million in revenue for the operator.

$1.4 M

Revenue generated

4

Different technologies used

190°F

Botttomhole temperature

+

Run life days increased

Multi-technology solutions

Multiple technologies contributed to increased production

Tiger Shark® Pumps

Tiger Shark® Pumps

Tiger Shark® pumps adapt to changing well production, improving operating range and run life. Tiger Shark II pumps are designed for maximum flexibility in conventional, unconventional, and gassy wells, while Tiger Shark III addresses extremely abrasive deep wells with high discharge pressure.

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Defender® Seals

Defender® Seals

Defender® seal extends operational life of motors used with ESPs by equalizing downhole pressure and preventing wellbore fluid migration to the motor.

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