An Investigation of the Plugging Mechanisms in a Slotted Liner from the Steam Assisted Gravity Operations

Romanova, U.G.; Ma, Tao

doi:10.2118/165111-ms

Cited by 29 publications

(8 citation statements)

References 7 publications

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“…Furthermore, the non-contributing sections due to the liner connections of the sand control completion could be approximately 20% of the well length. Plugging of sand control devices as a result of scale deposition [65], corrosion products, and fouling by fines deposition can cause plugging of up to 90% of the slots [66].…”

Section: Testing Matrixmentioning

confidence: 99%

An Investigation into Current Sand Control Testing Practices for Steam Assisted Gravity Drainage Production Wells

Kotb

Haftani

Nouri

2021

Eng

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Sand control screens (SCD) have been widely installed in wells producing bitumen from unconsolidated formations. The screens are typically designed using general rules-of-thumb. The sand retention testing (SRT) technique has gained attention from the industry for the custom design and performance assessment of SCD. However, the success of SRT experimentation highly depends on the accuracy of the experimental design and variables. This work examines the impact of the setup design, sample preparation, near-wellbore stress conditions, fluid flow rates, and brine chemistry on the testing results and, accordingly, screen design. The SRT experiments were carried out using the replicated samples from the McMurray Formation at Long Lake Field. The results were compared with the test results on the original reservoir samples presented in the literature. Subsequently, a parametric study was performed by changing one testing parameter at a test, gradually making the conditions more comparable to the actual wellbore conditions. The results indicate that the fluid flow rate is the most influential parameter on sand production, followed by the packing technique, stress magnitude, and brine salinity level. The paper presents a workflow for the sand control testing procedure for designing the SCD in the steam-assisted gravity drainage (SAGD) operations.

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Section: Testing Matrixmentioning

confidence: 99%

An Investigation into Current Sand Control Testing Practices for Steam Assisted Gravity Drainage Production Wells

Kotb

Haftani

Nouri

2021

Eng

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“…The major corrosion forms of the slotted liner of SAGD system include sweet corrosion (CO 2 corrosion) [47], [49], [50], sour corrosion (H2S corrosion), CO 2/ H 2 S synergistic corrosion, sulfide stress corrosion (SSC) and erosion corrosion. Significant amount of iron sulfide [51], [52], heavy buildup of other corrosion products, clay fines and sands have been observed in the plugged slots, choking them gradually [53]. Hydrogen significantly reduces the corrosion resistan`ce of carbon steel [50], [54], [55] and weakens the structure's mechanical strength [56] that is important to withstand thermal strains and strain localization [14], [57].…”

Section: Scale and Corrosion Preventionmentioning

confidence: 99%

Comprehensive Design and Manufacturing Solutions for Sand Control and Tooling towards Enhanced Oil Recovery

Ma¹

2017

IJMMM

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Abstract-This paper proposes an integrated and coherent research program includes phenomena discovery and investigation, product design, performance evaluation, failure mode analysis, interfacial and surface interaction enhancement, tooling product development and manufacturing technologies. The focused area is tooling system design and manufacturing of steam-assisted gravity drainage (SAGD) oil extraction technology. This study covers sand control liners and inflow and outflow control devices for in-situ heavy oil extraction. In order to provide solid scientific engineering input and analysis support, multi-disciplinary experts with a unique combination of strengths are suggested to form a team; hence the collective expertise covers a broad range of required scientific challenges. This proposed program leverages on knowledge-based and sustainable solutions with synergic, industry-oriented, and multidisciplinary collaboration approach.Index Terms-Multi-disciplinary research, steam-assisted gravity drainage (SAGD), phenomenon modeling, semantic modeling.I.

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“…• Creation of hot spots or steam breakthrough • Plugging of slots on the injector and/or producer (Romanova et al, 2013) • Collapse of liners due to thermal effects and stresses (O'Rourke, 2010) • Liner expansion (Cavender et al, 2011) • Formation damage (Tang et al, 2006) and scaling (Brand, 2010) To address some of these issues, the industry moved towards OCDs (steam splitters) and ICDs. In response to plugging of slots and a low overall open flow area in slotted liners, alternative options for sand control are now being evaluated and trialed in Canada's SAGD wells.…”

Section: Spe-178468-msmentioning

confidence: 99%

Optimizing Flow Control Devices in SAGD Operations: How Different Methodologies are Functional

Noroozi

Melo

Montoya

et al. 2015

Day 3 Wed, November 25, 2015

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Maximizing production and profitability is imperative in heavy oil operations using steam-assistedgravity-drainage (SAGD), as well as in other thermal operations. Effective downhole flow technology plays an important role in increasing the net present value of a SAGD operation. Conformance improvement for the injection well, utilizing outflow control devices (OCDs), can potentially increase production, and as a result, profitability of the SAGD process. On the producer well, operators prefer to have a uniform inflow production profile to recover more in-situ oil. This can be achieved through installing inflow control devices (ICDs) in the producer well. ICDs also help to mitigate the negative effect of baffles and barriers on the production well. To properly model both ICDs and OCDs, there are several methodologies and approaches available in the oil and gas industry. Each approach can be helpful to address specific questions and examine certain attributes of downhole flow technology. Depending on the objectives of the analysis, a specific software program or workflow can be used. The tool itself has a particular importance for the analysis and we would like to understand the physics behind the tool. The performance attributes of each downhole flow control device (FCD) will vary based on dimensions and design factors. Other analyses focus on design and optimization of the completion tool. Some studies use software programs to only focus on wellbore hydraulics and follow a simple and quick analysis for modeling, while other studies involve multiple software programs and complicated methodology to model and optimize the entire process. This paper shows some of the different options that are available to analyze and model both ICDs and OCDs. It will examine the pros and cons of each method, as well as the limitations of each software/methodology. Some examples will be shown to investigate the details of outputs and objectives of each approach. At the end, a guideline will be introduced for completion, reservoir, and production engineers to understand how these models can help them to evaluate flow control devices and their applications.

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An Investigation of the Plugging Mechanisms in a Slotted Liner from the Steam Assisted Gravity Operations

Cited by 29 publications

References 7 publications

An Investigation into Current Sand Control Testing Practices for Steam Assisted Gravity Drainage Production Wells

An Investigation into Current Sand Control Testing Practices for Steam Assisted Gravity Drainage Production Wells

Comprehensive Design and Manufacturing Solutions for Sand Control and Tooling towards Enhanced Oil Recovery

Optimizing Flow Control Devices in SAGD Operations: How Different Methodologies are Functional

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