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- W4387235215 abstract "Abstract To present the JetSweep Technology which is successfully applied to clean out the sand-filled due to the presence of loss circulations and sub-hydrostatic pressures in the horizontal wells in the south Sultanate of Oman. It represents a significant improvement over conventional rig/hoist cleanout operations, it is the latest advancement in JetSweep technology. Sand production is big challenge in PDO. During conventional tubing cleanouts, significant losses at the reservoir is encountered. As a result, conventional cleanout operations using hoist pumps would not be able to lift-up the sands from the well hence this could lead to the work string stuck, which costs PDO a lot to recover the situation. JetSweep Technology were able to control the flow rate during cleanout and minimize losses, this helps to carry the sands from the well to surface. The major portion of the flow rate powers the jet sweep, which drives suction force, while the minor portion sweeps up the well by bypassing the isolation packer and driving fluid and sand to the surface while maintaining balanced pressure conditions. JetSweep Technology is able to clean wells from sand to the desired depths to un-plug the perforations for production restoration. This results on prolonging the performance of the production pump. Moreover, few interventions required over the well's lifecycle. Also, increases the well life cycle time, reduces replacement pump expenditures and deferments. With JetSweep managed to shut off the water producing zone after cleaning and maximized the oil production. PDO successfully cleaned more than 210 wells and reduced oil deferment by US$16.38mln/year. Additionally, before JetSweep, the wells used to be cleaned using Coil-Tubing Unit which is normally done between two mandatory hoist entries (preparing well for CTU and completing well). These activities now are substituted by single hoist entry in one-go using the JetSweep, this has resulted into additional saving of US$ 1.5 million per year subsequentially. In summary, by using JetSweep, managed to: Reduced cleanout operation times and pumped fluid volumes. Achieve full well bore oil production. Retrofitting wells with new wire-wrapped screens for sandy wells. Retrofitting with AICD/AICV to reduce water cuts. Going forward, all wells with expected losses, JetSweep technology will be used with different applications: Sand/Scale cleanout. Stimulation Acid lift-up. Post-Frac sand cleanout. JetSweep technology is now seen as standard way of cleaning such wells from sand with losses during the clean-out. In PDO, it constitutes a game changer that is reducing the well life cycle costs, deferment and HSE exposure. The global industry, where such challenges are present, PDO experience and learning would definitely help replicating the use of this technology to improve the efficiency of operating the wells during the depletion phases." @default.
- W4387235215 created "2023-10-02" @default.
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- W4387235215 date "2023-10-02" @default.
- W4387235215 modified "2023-10-16" @default.
- W4387235215 title "A JetSweep Technology for Cleaning Under-Pressured Wellbores" @default.
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- W4387235215 doi "https://doi.org/10.2118/216635-ms" @default.
- W4387235215 hasPublicationYear "2023" @default.
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