Evaluating Performance of Foam-Assisted Lift in Sultanate of Oman by Dedicated Field Testing

Veeken, Kees; Hinai, Khalid Al; Shanfari, Abdul Aziz; Yamadi, Ahmed; Zadjali, Abdullah; Saidi, A.M.; Hadhrami, Hatim; Daraai, Thabit; Mans, Jeroen; Yousfi, Idrees; Hinai, Hisham; Wahaibi, Yousuf; Musalami, Khamis; Medhi, Rawa; McIntyre, Neil; Kindi, Ahmed; Kindi, Osama Mohammed Al; Naabi, Hajer; Mabsali, Laila; Dhahri, Hisham

doi:10.2118/188223-ms

Cited by 5 publications

References 10 publications

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Innovative Use of Capillary String for Halite Cleanout in Sultanate of Oman

Veeken¹,

Alawi²,

Ardia³

et al. 2019

Day 3 Wed, November 13, 2019

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Following second stage depletion compression, more than 100 deep onshore gas wells operated by PDO in the Sultanate of Oman started suffering from downhole halite deposition. Halite scale blocks part of production and reduces well capacity by 20-80% depending on well specific conditions. Fresh water bullheading treatments were introduced to periodically dissolve the halite scale but in many cases treatments were applied too late or are not effective in preventing permanent blockage. In those cases, a cleanout using a work string is required to restore wellbore access and production. Historically, coiled tubing was used to remove halite scale via milling and fresh water jetting. Recently, 1/4" and 3/8" capillary strings were successfully deployed to reduce the cleanout cost and the volume of water lost to formation. This paper describes the experience with fresh water bulheading and the novel use of capillary string to clean wells that suffer from halite scale.

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Innovative Use of Capillary String for Halite Cleanout in Sultanate of Oman

Veeken¹,

Alawi²,

Ardia³

et al. 2019

Day 3 Wed, November 13, 2019

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Gas Well Deliquification Strategy in Sultanate of Oman

Veeken¹,

Al-Rashdi²,

Al-Hashami³

2022

Day 3 Wed, March 23, 2022

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PDO is operating some 600 gas wells in the Sultanate of Oman and almost all these gas wells will experience liquid loading during their production life. Surface depletion compression and gas well deliquification are essential to sustain stable production and to maximize ultimate gas recovery. This paper provides an overview of the deliquification measures that are assessed, adapted and implemented in PDO, and describes how to select the best suitable combination of deliquification measures based on well specific reservoir, inflow and outflow parameters.

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Data Driven Gas Well Performance Model Hands Back Control to Engineers

Veeken¹

2021

SPE Annual Technical Conference and Exhibition

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This paper presents a fit-for-purpose gas well performance model that utilizes a minimum set of inflow and outflow performance parameters, and demonstrates the use of this model to describe real-time well performance, to compare well performance over time and between wells, and to generate production forecasts in support of well interventions. The inflow and outflow parameters are directly related to well-known reservoir and well properties, and can be calibrated against common well surveillance and production data. By adopting this approach, engineers develop a better appreciation of the magnitude and uncertainty of gas well and reservoir performance parameters.

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Evaluating Performance of Foam-Assisted Lift in Sultanate of Oman by Dedicated Field Testing

Cited by 5 publications

References 10 publications

Innovative Use of Capillary String for Halite Cleanout in Sultanate of Oman

Innovative Use of Capillary String for Halite Cleanout in Sultanate of Oman

Gas Well Deliquification Strategy in Sultanate of Oman

Data Driven Gas Well Performance Model Hands Back Control to Engineers

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