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2018-2-17 A threshold of equivalent plastic shear strain has been quantified to determine the onset of sand production in perforated wells; this threshold can be used for field application of sand production analysis on similar sand material. An application on a vertical well with horizontal perforations has been simulated numerically.
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2020-6-17 Determination of onset of sand production by observing the value of critical wellbore pressure. Negative value means that the rock failure is not probable to happen, whereas positive values indicate that the sand production problem may occur within the interval. Stress analysis and critical wellbore pressure
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2001-9-30 Such design tools include the capacity to predict sand production onset, sand quantities and sand production rates, equipment erosion risks, and the conditions at which the sand can be transported inside the production liner and surface lines. Also, an essential tool is a sand monitoring technology to allow real-time quantitative sand flux tracking.
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2004-2-18 Sanding onset prediction models are used to forecast the production condition, e.g. pressure drawdown or flow rate, at which sand production occurs. A sanding onset prediction model is critical for sand control decision-making in answering the questions whether or not sand control should be used, or when to use sand control.
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2020-3-1 These consist of production limits to reduce sand inflow at a level below the destructive threshold, set up downhole equipment to prevent sand ingress from the reservoir formation, conventional facilities for taking out sand particles that reach to the surface, and placement of a separation equipment at the surface facilities to improve the robustness of the topside operation.
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2021-6-4 pressure drawdown and reservoir pressure. Predicting sand production involves developing empirical and analytical. Numerical analytical techniques are also sometimes used. They are models developed from finite element analysis. The techniques above use production data, well logs, laboratory testing, acoustic, intrusive sand monitoring
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2020-4-10 70 per cent of oil and gas production around the world today comes from unconsolidated sand-stone reservoirs. These reservoir rocks are prone to sand production at some stage during the production life of the well. Predicting when the well will be a sand producer and what volume of sand will be produced alongside production fluid
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2021-5-30 the production condition at which sand production occurs. Sanding onset prediction involves simulating the stress state on the surface of an oil/gas producing cavity (e.g. borehole, perforation tunnel) and applying appropriate sand production criterion to predict the fluid pressure or pressure gradient at which sand production occurs. In this
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2017-4-1 These models may be used to study sand production from open-hole well or perforation tunnel and tip for a cased well. Ong et al. (2000) developed an analytical model for the prediction of the onset of sand production or critical drawdown pressure in high-rate gas wells. This model describes the perforation and open-hole cavity stability incorporating both rock and fluid mechanics fundamentals.
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China Sand Production Equipment Factory - Select 2021 Sand Production Equipment Factory products from verified China Sand Production Equipment Factory manufacturers, suppliers on Made-in-China.
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Start date: Jan 1, 2010 PREDICTION OF ONSET OF SAND PRODUCTION Determine the main driving factors of the initiation/onset of sand production in high porosity/high permeability sandstone ...
Read More2020-3-1 Analytical sand onset prediction models use a poroelastic solution to calculate the stresses at the borehole/perforation wall as a function of in situ stresses and pore pressure and the applied depletion and drawdown. This solution is combined with a failure model to determine hole failure and sand onset.
Read More2004-9-26 A key aspect of a strategy for sand management is an assessment of the risk of sand production. In a cased-hole completion the perforations provide the link between the wellbore and the formation, and constitute not only a conduit for the produced or injected fluids but also potentially for formation sand.
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Abstract Four failure criteria, a simplified Mohr–Coulomb, a Mohr–Coulomb, a von Mises and a Drucker–Prager model are considered for borehole failure and sand onset predictions. The von Mises is a special case of the Drucker–Prager. The resulting analytical expressions are suitable for implementation in the analytical software for sand onset and sand mass analyses.
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2020-4-10 sand production onset, but were all anchored on Mohr failure criterion which assumed rock mass quality to be 100 per cent intact and could not account for different levels of disturbance in terms of rock strength. Therefore, the analytical model used in uncertainty assessment in this study is
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Fig. 8. Von Mises model and isotropic and anisotropic test data on Red Wildmoor sandstone. Fit for = 0, = 1.5 of the data for the normalized major lateral failure stress vs. the (a) axial Kz and (b) lateral Kr anisotropy ratio. - "Analytical models for onset of sand production under isotropic and anisotropic stresses in laboratory tests"
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2017-4-1 Sand production can cause serious damages to surface production equipment. The damages are mainly erosion of both downhole and surface valves and pipelines and sand deposits in the separators. Another major problem is the instability of the production cavities and wellbore itself, which may in extreme cases result in a complete filling of the ...
Read MoreChina Sand Production Equipment Factory - Select 2021 Sand Production Equipment Factory products from verified China Sand Production Equipment Factory manufacturers, suppliers on Made-in-China.
Read More2021-5-30 the production condition at which sand production occurs. Sanding onset prediction involves simulating the stress state on the surface of an oil/gas producing cavity (e.g. borehole, perforation tunnel) and applying appropriate sand production criterion to predict the fluid pressure or pressure gradient at which sand production occurs. In this
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2021-6-4 a drawdown pressure of 2507psi, the sand production rate was 184.6. Figure 3: Sand Onset Plot Uniaxial Compressive Strength (UCS) helps to determine the strength of the core sample by ascertaining the point at which the rock will fail. Once this happen, the integrity of the rock is questioned.
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2018-10-23 The model performance was then tested by analysing the onset of sand production in a well drilled in Bohai Bay in Northeast of China. Acoustic and density log along with core data were used to provide the input parameters for the proposed analytical model in
Read More2004-9-26 A key aspect of a strategy for sand management is an assessment of the risk of sand production. In a cased-hole completion the perforations provide the link between the wellbore and the formation, and constitute not only a conduit for the produced or injected fluids but also potentially for formation sand.
Read More2004-2-18 Sanding onset prediction models are used to forecast the production condition, e.g. pressure drawdown or flow rate, at which sand production occurs. A sanding onset prediction model is critical for sand control decision-making in answering the questions whether or not sand control should be used, or when to use sand control.
Read MoreAbstract Four failure criteria, a simplified Mohr–Coulomb, a Mohr–Coulomb, a von Mises and a Drucker–Prager model are considered for borehole failure and sand onset predictions. The von Mises is a special case of the Drucker–Prager. The resulting analytical expressions are suitable for implementation in the analytical software for sand onset and sand mass analyses.
Read More
Modeling analytically the effects of in situ stress anisotropy on borehole failure and sand production. • Formulation amenable for analytical sand onset and sand rate prediction programs in the field for log-based analysis of long well sections. Abstract. Four failure criteria, a simplified Mohr–Coulomb, a Mohr–Coulomb, a von Mises and a ...
Read More2021-6-4 a drawdown pressure of 2507psi, the sand production rate was 184.6. Figure 3: Sand Onset Plot Uniaxial Compressive Strength (UCS) helps to determine the strength of the core sample by ascertaining the point at which the rock will fail. Once this happen, the integrity of the rock is questioned.
Read More2021-5-30 the production condition at which sand production occurs. Sanding onset prediction involves simulating the stress state on the surface of an oil/gas producing cavity (e.g. borehole, perforation tunnel) and applying appropriate sand production criterion to predict the fluid pressure or pressure gradient at which sand production occurs. In this
Read MoreFig. 8. Von Mises model and isotropic and anisotropic test data on Red Wildmoor sandstone. Fit for = 0, = 1.5 of the data for the normalized major lateral failure stress vs. the (a) axial Kz and (b) lateral Kr anisotropy ratio. - "Analytical models for onset of sand production under isotropic and anisotropic stresses in laboratory tests"
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Fig. 10. DruckerPrager model and isotropic and anisotropic test data on Red Wildmoor sandstone. Fit for = 0.25, = 1.4 and k1 = 0.2 of the experimental data for the normalized major lateral failure stress vs. the (a) axial Kz and (b) lateral Kr anisotropy ratio. - "Analytical models for onset of sand production under isotropic and anisotropic stresses in laboratory tests"
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