Artificial Lift Strategy for the Life Cycle of Unconventional Wells: A Case Study for Horizontal Shale Wells
- Katherine Escobar Patron (Schlumberger) | Xin Chen Billdal (Schlumberger) | Haidan Lu (Schlumberger) | Denis Kutluev (Schlumberger) | Dave Kimery (Heal Systems) | Kyla Gau (Heal Systems) | Lauren Diederichs (Heal Systems) | Soraya Fears (Heal Systems)
- Document ID
- Society of Petroleum Engineers
- SPE Middle East Artificial Lift Conference and Exhibition, 28-29 November, Manama, Bahrain
- Publication Date
- Document Type
- Conference Paper
- 2018. Society of Petroleum Engineers
- 3.1 Artificial Lift Systems, 5.5 Reservoir Simulation, 3.1.1 Beam and related pumping techniques, 4 Facilities Design, Construction and Operation, 5 Reservoir Desciption & Dynamics, 5.3.2 Multiphase Flow, 4.1 Processing Systems and Design, 3 Production and Well Operations, 2.1.3 Completion Equipment, 4.1.2 Separation and Treating
- slug flow mitigation, transient multiphase simulation, gas production, unconventional shale, artificial lift
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The artificial lift strategy of an asset is driven by technical and economic factors. Production challenges associated with the exploitation of unconventional plays have become a key factor when planning for a life time solution. Inherent flow instabilities associated with the production of unconventional shale wells should be taken into consideration during the production and optimization of the well. Transient simulation is adopted to gain insights into dynamic flow mechanisms and consequently design for a customized tail pipe system for the life of the well.
This paper describes a case study where a Horizontal Enhanced Artificial Lift (HEAL) System is implemented together with a rod pump as the artificial lift strategy for an unconventional shale asset in the US. Dynamic transient simulation was conducted to demonstrate the efficiency of the system in significantly suppressing slug flow by conditioning flow through a regulating string and separating gas from the well stream before it reaches the installed artificial lift system. Comprehensive engineering scenarios are set up to analyze the effect of production parameters on the HEAL System design against conventional production approaches, where equipment run life is compromised due to unstable flow conditions and consequently the amount of gas and/or solids that are produced through the pump.
The combination of transient simulation with artificial lift demonstrates that the HEAL System is a suitable solution for the production challenges associated with unconventional reservoirs. Extending the life of the equipment allows the well to produce at a lower bottomhole pressure and manage slug flow. The solution can be extended to unconventional places where unstable production due to reservoir pressure depletion is a dominant factor.
|File Size||1 MB||Number of Pages||10|
Lu, H., Mukhanov, A., Nagarakanti, S., Fai-Yengo, G., Kwok, C. K., & Atmaca, S. (2018, March 13). Value-Driven Mitigation Plans for Severe Slugging in Gas-Lift Wells in Unconventional Shale Plays. Presented at the SPE Canada Unconventional Resources Conference held in Calgary, Alberta, Canada, 13-14 March 2018. SPE-189828-MS.