Applications of a Multizone Single-Trip Gravel-Pack System in Developing a Shallow-Gas Field, Indonesia: Case History

Muryanto, B.; Fransiskus, W.; Wijaya, Rio; Styward, B.; Ji, Yin; Albertson, E.; Sudirgo, A. W.; Hutahaean, A.; Widyastuti, A.

doi:10.4043/28515-ms

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…If the pressure difference is low and fluid compositions are similar, then production can be taken from a single tubing string. Intelligent well completion also known as smart well completion, which contains inflow control devices and permanent gauges which control the zonal flow and permanent gauges exclude the need of conventional wireline gauges [9].…”

Section: Introductionmentioning

confidence: 99%

Optimizing the Production from a Multizone Well by Selecting Appropriate Completion for a Well of Tal Block Pakistan

Arisar

Hingoro

Abro

et al. 2019

Eng. Technol. Appl. Sci. Res.

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Well completion is the process of construction a well geared up for production or injection. This mainly involves preparing the bottom of the hole to the required conditions, running the production tubing and associated downhole tools. Production from a multizone well can be obtained from a single tubing string as well as from dual tubing strings but it depends on pressure difference, depth and fluid present in the formation. This paper is based on the optimum well completions design for a multizone well of the Tal block region which contains four reservoirs of different formations: Lockhart (limestone), Hangu and Lumshiwal (sandstone), Samanasuk (limestone) & Datta (sandstone) having pressures of 7432psia, 7563psia, 7843psia, and 7982psia respectively. The well is producing four zones (multilayer well) and the generated numerical model for each completion (single string multizone completion and dual string multizone completion) shows better performance and economic feasibility.

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Section: Introductionmentioning

confidence: 99%

Optimizing the Production from a Multizone Well by Selecting Appropriate Completion for a Well of Tal Block Pakistan

Arisar

Hingoro

Abro

et al. 2019

Eng. Technol. Appl. Sci. Res.

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A review of experimental studies on sand screen selection for unconsolidated sandstone reservoirs

Ahad

Jami

Tyson

2020

J Petrol Explor Prod Technol

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Sand production is a problem that affects hydrocarbon production from unconsolidated sandstone reservoirs. Several factors, such as the strength of the reservoir, its lithification and cementation and reduction in pore pressure, may cause sand to be separated from the rock and transported by hydrocarbons to the well. Producing sand commonly causes erosion and corrosion of downhole and surface equipment, leading to production interruptions and sometimes forces operators to shut-in wells. Several different methods of sand control are available to reduce the impact of sand production. The reviewed papers suggest that the most suitable methods for unconsolidated sandstone reservoirs are stand-alone screens and gravel packs. Because of the cost and complexity of gravel packs, stand-alone screens are usually the first choice. These screens have different geometries, and selection of the most suitable screen depends on the particle size distribution of the grains in the formation and other reservoir and production parameters. A screen retention test, run in a laboratory with screen samples and typical sands, is often used to ensure that the screen is suitable for the reservoir. This paper reviews the main causes of sand production, the properties of unconsolidated sandstones that predispose reservoirs to sand production problems and the selection criteria for the most suitable mitigation method. The process of selecting a screen using experimental screen retention tests is reviewed, and the limitations of these tests are also discussed. Some numerical simulations of experimental tests are also reviewed, since this represents a very cost-effective alternative to laboratory experiments.

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Non Selective Shallow Unconsolidated Well Re-Entry: Case Study in Mahakam Delta

Abidiy

Bawono

Rizky

et al. 2021

SPE/IATMI Asia Pacific Oil &Amp; Gas Conference and Exhibition

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Declining of shallow reservoir reserve urges efficiency effort to switching well architecture from zone-selective gravel pack completion to non-selective tubingless completion. However, zone management in tubingless completion is not as simple as sliding sleeve manipulation in gravel pack well. It requires proper zone isolation of closed zone such as setting plug, tubing patch, or squeezed cement. Therefore, optimum zone management need to be identified to be consistent with cost efficiency effort. Study in determining optimum zone management captured two nearly identic case of 3 zones of selective well and non-selective well. The well cost, production, and its net present value was compared to evaluate how the reservoir production is managed. Although selective well has higher initial well cost, but operation cost during the production is significantly low. On the other hand, even non-selective well has lower initial well cost, due to complication on zone management, non-selective well has higher operation cost. The total cost of problematic non-selective well could nearly reach the selective well cost. The complication is identified as downward movement, i.e. re-accessing previously isolated lower zone and isolating upper zone at once. However, this study suggests that strictly following bottom-up production strategy could potentially avoid the complication by 23% more efficient in production and cost index. Well cost efficiency is not only determined by lower initial well cost. All operating cost during production must be also considered. Optimum well management for both type of completion is a key parameter in order to control the cost efficiency effort. Therefore, well completion design selection must consider not only the cost and production, but also the operation excellence and capability during managing well production in its lifetime.

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Applications of a Multizone Single-Trip Gravel-Pack System in Developing a Shallow-Gas Field, Indonesia: Case History

Cited by 3 publications

References 3 publications

Optimizing the Production from a Multizone Well by Selecting Appropriate Completion for a Well of Tal Block Pakistan

Optimizing the Production from a Multizone Well by Selecting Appropriate Completion for a Well of Tal Block Pakistan

A review of experimental studies on sand screen selection for unconsolidated sandstone reservoirs

Non Selective Shallow Unconsolidated Well Re-Entry: Case Study in Mahakam Delta

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