Live Well Deployment of Retrievable ESP Systems, Case Histories

Nutter, Greg; Malone, David; Patterson, John C.

doi:10.2118/185160-ms

Cited by 5 publications

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Advancing Electric Submersible Pump Alternative Deployment Technology: An Overview and Case Study

Roth

Xiao

Windiarto

et al. 2017

SPE Annual Technical Conference and Exhibition

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Traditional electric submersible pump (ESP) systems have drawbacks in terms of installation speed and efficiency. To overcome these obstacles, some alternatively deployed ESP systems, including the one selected, are deployed into the production tubing, subjecting the system to the properties of the produced fluids. A novel rigless-deployed ESP system developed for use in high hydrogen sulfide (H2S)/high chloride production environment is a solution. An initial step reviewed and ranked competing alternate deployment ESP technologies available in industry along with several new concepts. A new approach to alternate deployment technology was selected. Rigorous testing was conducted to qualify the selected technology and materials for harsh production environments. Testing included a modified NACE TM0175 test due to the processing of the power cable design. Integration testing was performed in a test well to validate the integrity and deployment of the new system prior to field deployment of the rigless-deployed ESP system. The cable deployed ESP (CD ESP) employs a fit-for-purpose power cable that incorporates an exterior metal jacket, providing strength to deploy ESPs thousands of feet into the well. The TransCoil system's power cable outside diameter is roughly 40% smaller than current 2-3/8-in cable-internal, coiled-tubing (CICT) systems; therefore, it is lighter in weight and reduces tubing pressure losses compared to previous products. Product reliability is enhanced as the power cable is fabricated in a continuous manufacturing and inspection process on a factory floor. The tightly controlled manufacturing process significantly improves the product quality over CT cable systems. The power cable can be fabricated from different metallurgies ranging from carbon steel to nickel allow based on the well requirements. A nickel alloy power cable laboratory qualified to 15% H2S and 150,000 ppm chlorides was field deployed in an onshore well and demonstrated an installation time reduction of nearly 50% over rig-deployed systems. A power cable rigless-deployed ESP system solves many of the challenges that currently plague the industry including operational efficiency, rapid replacement, and product reliability in wells in harsh environments worldwide. The power cable rigless-deployed ESP system has, in particular, the opportunity to transform ESP replacement in offshore wells.

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Advancing Electric Submersible Pump Alternative Deployment Technology: An Overview and Case Study

Roth

Xiao

Windiarto

et al. 2017

SPE Annual Technical Conference and Exhibition

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The First Slickline Rigless Deployed High Rate Slim Design ESP in the Middle East.

Rafie

Qahtani

Mutairi

et al. 2017

Day 1 Mon, November 13, 2017

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The oil industry has been for many years, growing and innovating technology over time. Economic cost is the main driver for changes that occur in our industry and the need to overcome a variety of challenges from reservoir to production to have a profitable well. Saudi Aramco as one of the largest operators worldwide have several fields that run completely on artificial lift, mainly ESPs, to produce. These ESPs are known to be prone to wear and tear, requiring replacement every few years. Conventionally through the use of a workover rig, these ESP and upper completion are replaced every so often. In recent years, the decline of the oil prices worldwide has cited the need to reduce capital & operational expenses to maximize the profitability in our economic analysis. Saudi Aramco, as a lead oil & gas operator is paving the way in alternative deployments method of ESP completion. This paper details Saudi Aramco’s successful deployment and qualification of a high rate, slim design alternative deployed ESP system. As part of the qualification criteria the system was successfully installed, removed and reinstalled three times over a six month period on slick-line.

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Induction Versus Permanent Magnet Motors for ESP Applications

Xiao

Lastra

2018

All Days

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This paper provides an overview comparing Induction Motors (IM) and Permanent Magnet Motors (PMM) for Electric Submersible Pump (ESP) applications. What are the design differences and how the performances of the two types of motors are stacked against each other? What are the advantage and unique applications of PMMs? Why and how are PMMs controlled differently from IMs? Are there safety aspects that field engineers need to be aware of with PMMs? These questions will be addressed in the paper. The information presented includes literature review and latest R&D results. It covers operating principles of IM and PMM, selection of permanent magnet materials, operating frequency, stator windings and magnetic poles. PMMs offer better efficiency, higher power factor performance and compactness. Ideal applications include slim well applications, through-tubing rigless deployment, Y-tool completion and Electric Submersible Progressive cavity Pump (ESPCP). The paper will also shed some light on why conventional IMs cannot be used to drive ESPCPs directly without speed reduction gearboxes. It is very likely that the use of PMM will increase for ESP applications in the near future and this will require engineers to acquire a basic understanding of this technology. A high level comparison between IM and PMM is missing in the ESP industry and this paper fills the gap. PMMs need to be operated with a different type of control for Variable Speed Drive (VSD) and require matching transformers for high frequency applications. The paper also intends to highlight the safety aspects of PMMs in shop and field handling.

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Live Well Deployment of Retrievable ESP Systems, Case Histories

Cited by 5 publications

References 0 publications

Advancing Electric Submersible Pump Alternative Deployment Technology: An Overview and Case Study

Advancing Electric Submersible Pump Alternative Deployment Technology: An Overview and Case Study

The First Slickline Rigless Deployed High Rate Slim Design ESP in the Middle East.

Induction Versus Permanent Magnet Motors for ESP Applications

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