Implementing WRFM Well, Reservoir, Facility Management and Smart Field Best Practices for EOR Optimization

Zeidan, Amr; Redha, Reeham Ali; Williams, Darryl D.; Montero, Jacobo

doi:10.2118/193693-ms

Cited by 4 publications

(1 citation statement)

References 2 publications

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“…One forwardlooking EOR approach is the workover method. It tries to convert currently weak horizontal wells to maximum reservoir contact (MRC) wells, or abandoned vertical wells to horizontal ones or power water injectors [7,8]. This is done to maximize well production and to achieve total oil recovery.…”

Section: Introductionmentioning

confidence: 99%

Long-Term Integrity Testing of Water-Swelling and Oil-Swelling Packers

Qamar¹,

Akhtar²,

Pervez³

2021

Swelling Elastomers in Petroleum Drilling and Development - Applications, Performance Analysis, and Material Modeling

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As easy oil in many fields is dwindling, there is increasing stress worldwide on innovative enhanced oil recovery (EOR) techniques. One forward-looking EOR approach is the workover method. It tries to convert currently weak horizontal wells to maximum reservoir contact (MRC) wells, or abandoned vertical wells to horizontal ones or power water injectors. Where conventional techniques fail, swelling elastomer seals and packers provide effective water shutoff and zonal isolation in even very complex environments, resulting in significant savings in rig time and development cost. One major issue of interest is the service life of elastomer seals and packers. It can be attempted to predict the probable working life based on the theory of accelerated testing. However, this forecast will not be very dependable for swelling elastomers as the material performance is substantially different from other rubber-type polymers. A full-scale test rig (one of its kind in the world) was therefore designed and fabricated at Sultan Qaboos University (SQU), in collaboration with a regional petroleum development company, for long-term service life assessment of actual full-size water-swelling and oil-swelling packers.

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Section: Introductionmentioning

confidence: 99%

Long-Term Integrity Testing of Water-Swelling and Oil-Swelling Packers

Qamar¹,

Akhtar²,

Pervez³

2021

Swelling Elastomers in Petroleum Drilling and Development - Applications, Performance Analysis, and Material Modeling

View full text Add to dashboard Cite

show abstract

Design and construction of test facility for evaluation of swell packers in cased and open holes

Pervez

Qamar

Akhtar

et al. 2021

J Petrol Explor Prod Technol

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In the petroleum industry, packers refer to the components/products which are used to isolate one section in a formation from others, or to isolate the outer section of a production tubing from the inner section, which may be a casing or a liner or the wellbore itself. Mechanical packers are installed through some form of tubing movement. Permanent packers are low in cost and provide better seal. Retrievable packers have lower sealing capability but are re-usable after repair, and therefore expensive. More innovative packers made of swellable elastomers are rather new. These elastomers swell when they come in contact with different types of fluids (mostly water and oil). Like a casing, these new packers are lowered to the desired depth and allowed to swell before production or injection operations begin. Various studies have been published about the swelling and mechanical response of these elastomers. However, many questions remain about the sealing performance of swell packers, and their effectiveness in actual wellbores of rough and random profiles. This paper describes the design and development of an experimental unit for performance testing of a mix of inert and swelling elastomer seals under realistic well conditions. Actual swell packers and petroleum tubulars are housed in a concrete block that replicates open-hole and cased-hole wells through layers of varying roughness. This is a one-of-its-kind unit providing full-scale demonstration about the working of swell packers against outer casing or rock formation in a wellbore. It is also a complete testing apparatus to investigate the behavior of swell packers made of fast-swell and medium-swell elastomers, and how they seal off irregular boreholes. This work can provide basic understanding and visual corroboration to petroleum engineers and students, swelling elastomer application developers, and academic and research personnel.

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Identification of Field-Wide Well Performance Enhancement Strategies in a Heavy Oil Field in Northern Kuwait Using Parametric Analysis Techniques

Garcia

Kharghoria

Al-Rabah

et al. 2018

Day 1 Mon, December 10, 2018

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Production in a green, heavy oil field in Northern Kuwait with limited production history is in a fast track delivery to increase production in the short term. A fast but insightful evaluation was required to identify field-wide productivity enhancement opportunities needed to increase oil production. A parametric analysis methodology was applied to a "typical well" to first obtain the factors that limit the well's production thorough understanding of the overall well potential, to finaly identify inflow and outflow enhancement opportunities. Nodal analysis based on Darcy inflow model was utilized and multiple sensitivities were run for parameters prevoisuly identified. The parameters were expanded in value considering possible technical solutions applicable but not limited to: completion and perforation design, artificial lift performance and surface equipment, in order to determine technical limits applicable for each parameter using a combination of proven and novel technologies. The parametric analysis helped to identify inflow and outflow enhancement opportunities (from the sand face to the separator), including but not limited to: well stimulation, re-perforation, pump efficiency and back pressure reduction. The range of the theoretical oil rate improvement identified from the analysis was from 20 to 50%. Based on the model results, additional resources were alloactred for a more detailed validation and study work using simulation. The parametric modeling approach was subsequently crosschecked on individual well reviews, where detailed inflow and outflow evaluations were conducted resulting in good agreement in terms of value in production gains. The applied methodology showed to be a valid and fast track approach, readily to identify field-wide production issues and opportunities, particularly at the start of field production. The results obtained from this study provide a comprehensive approach to understand how well design, engineering decisions and field operational practices will impact well productivity. The methodology can be easily replicated by engineers in similar fields.

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Implementing WRFM Well, Reservoir, Facility Management and Smart Field Best Practices for EOR Optimization

Cited by 4 publications

References 2 publications

Long-Term Integrity Testing of Water-Swelling and Oil-Swelling Packers

Long-Term Integrity Testing of Water-Swelling and Oil-Swelling Packers

Design and construction of test facility for evaluation of swell packers in cased and open holes

Identification of Field-Wide Well Performance Enhancement Strategies in a Heavy Oil Field in Northern Kuwait Using Parametric Analysis Techniques

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