Factors Affecting Sand Production from Unconsolidated Sandstone Saudi Oil and Gas Reservoir

Al-Awad, Musaed N.J.; Elsayed, Ashraf; Desouky, Said E.

doi:10.1016/s1018-3639(18)30995-4

Cited by 22 publications

(13 citation statements)

References 5 publications

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“…The in-situ reservoir or formation rock strength is a function of factors such as the rock properties and overburdening and confining pressures. The most dominating factors affecting the rock strength are those associated with the natural cementation of the rock particles [12]. This is controlled by the bonding of cementitious materials, interparticle friction and fluid adhesion [13,14], which has a direct bearing on the mechanical integrity of the rock and the nature of its failure.…”

Section: Sanding Mechanism and Failure Criteriamentioning

confidence: 99%

Section: Sanding Mechanism and Failure Criteriamentioning

confidence: 99%

“…Using strength as a distinguishing criterion, sandstone formations can be split into three categories: unconsolidated, weak and competent [12]. On this premise, Al-Wad et al [12] recognises two patterns of sanding process. In competent sandstone reservoirs, sanding is caused by shear failure, due to high shear stresses at the rock surface along the wellbore [12].…”

Section: Sanding Mechanism and Failure Criteriamentioning

confidence: 99%

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Investigating Sand Production Phenomena: An Appraisal of Past and Emerging Laboratory Experiments and Analytical Models

Eshiet

Sheng

2021

Geotechnics

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This paper provides an in-depth review of research developments on a common phenomenon in oil and gas exploration: sand production. Due to its significant impact to reservoir productivity and production efficiency, sand production has been widely researched in recent years. This paper focused on the review of historical progress in experimental and analytical studies which helped to understand the nature of the sanding mechanism and identify conditions that favour the process. Collation of the experimental data and analytical solutions and formulations enabled the authors to comment on effectiveness and also limitations of the existing experimental protocols and analytical models. Sand production models were then grouped into categories based on initiation of sanding, rate and amount of sanding as well as the failure criterion incorporated in their formulation so that it will be more convenient for future researchers to identify and adopt an appropriate model for their own research. The review also confirms that there are still some aspects of sand production requiring further investigation, and maybe a hybrid approach combining experimental, analytical and numerical methods could be the best solution for future explorations.

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Section: Sanding Mechanism and Failure Criteriamentioning

confidence: 99%

Section: Sanding Mechanism and Failure Criteriamentioning

confidence: 99%

Section: Sanding Mechanism and Failure Criteriamentioning

confidence: 99%

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Investigating Sand Production Phenomena: An Appraisal of Past and Emerging Laboratory Experiments and Analytical Models

Eshiet

Sheng

2021

Geotechnics

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“…This leads to an increased concentration of suspended rock particles in produced liquid, causing submersible and surface equipment malfunctions. Resulting in a decreased well operation factor due to an increase in the frequency and duration of repairs and, as a result, in operating costs [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

An Investigation into Current Sand Control Methodologies Taking into Account Geomechanical, Field and Laboratory Data Analysis

et al. 2021

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Sand production is one of the major issues in the development of reservoirs in poorly cemented rocks. Geomechanical modeling gives us an opportunity to calculate the reservoir stress state, a major parameter that determines the stable pressure required in the bottomhole formation zone to prevent sand production, decrease the likelihood of a well collapse and address other important challenges. Field data regarding the influence of water cut, bottomhole pressure and fluid flow rate on the amount of sand produced was compiled and analyzed. Geomechanical stress-state models and Llade’s criterion were constructed and applied to confirm the high likelihood of sanding in future wells using the Mohr–Coulomb and Mogi–Coulomb prototypes. In many applications, the destruction of the bottomhole zone cannot be solved using well mode operations. In such cases, it is necessary to perform sand retention or prepack tests in order to choose the most appropriate technology. The authors of this paper conducted a series of laboratory prepack tests and it was found that sanding is quite a dynamic process and that the most significant sand production occurs in the early stages of well operation. With time, the amount of produced sand decreases greatly—up to 20 times following the production of 6 pore volumes. Finally, the authors formulated a methodological approach to sand-free oil production.

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“…Improperly designed stand-alone screens can compromise the sand control, damaging the production equipment and causing operational problems and high remediation costs [21][22][23][24]. Thus, proper design criteria are needed for the slotted liner to restrict sand production and maintain the flow performance at a desirable level for the SAGD well lifecycle [25].…”

Section: Introductionmentioning

confidence: 99%

An Improved Set of Design Criteria for Slotted Liners in Steam Assisted Gravity Drainage Operation

et al. 2020

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Slotted liners are widely used in steam-assisted gravity drainage (SAGD) wells to control sand production and sustain wellbore productivity. The slotted liner can provide desirable performance when appropriately designed. A literature review indicates a limited number of studies that offer design criteria specifically for SAGD wells. Moreover, past criteria seem to neglect some key factors, which may lead to inadequate slot design. This paper proposes a set of graphical design criteria for slotted liners in SAGD production wells, using prepacked sand retention testing (SRT) data. The SRT is designed to incorporate several essential factors that are not present in the past design criteria, such as slot density, steam breakthrough, and particle size distribution (PSD). The proposed design criteria are presented graphically for normal and aggressive conditions, where the aggressive condition accounts for the potential occurrence of the steam breakthrough. It is found that the upper bound of the design window is substantially lower for the aggressive condition due to the higher sand production after the steam breakthrough. The design criteria also indicate that the slotted liner is suitable only for the formations with low fines content.

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Factors Affecting Sand Production from Unconsolidated Sandstone Saudi Oil and Gas Reservoir

Cited by 22 publications

References 5 publications

Investigating Sand Production Phenomena: An Appraisal of Past and Emerging Laboratory Experiments and Analytical Models

Investigating Sand Production Phenomena: An Appraisal of Past and Emerging Laboratory Experiments and Analytical Models

An Investigation into Current Sand Control Methodologies Taking into Account Geomechanical, Field and Laboratory Data Analysis

An Improved Set of Design Criteria for Slotted Liners in Steam Assisted Gravity Drainage Operation

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