Extending the Production Capacity in Sand Control Completions Using a Self-Mitigating Sand Screen

Yeh, Chien Hung; Mayer, Christian S. J.; Howell, David; Grueschow, Eric Russell; Angeles, Renzo; Gillespie, George; Sladic, John; Simonds, Randy

doi:10.2118/165135-ms

Cited by 4 publications

(1 citation statement)

References 8 publications

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“…Meanwhile, conventional mechanical sand control techniques can also be divided into four groups: standard rig operation with retrievable packers, tubing-conveyed string, coiled tubing, and long zone/selective treatment. However, mechanical techniques can hardly solve fundamental problems and are usually costly and time-consuming. − …”

Section: Introductionmentioning

confidence: 99%

Pentaerythritol Phosphate Melamine Salt, A New Aggregating Reagent for Oilfield Chemical Sand Control: Preparation, Properties, and Mechanism

et al. 2016

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The production of sands in oil well production has long been a crucial and thorny issue, but many related technologies are either costly or ineffective. This study introduced a new aggregating reagent, pentaerythritol phosphate melamine salt (PPMS for short), for controlling this problem. PPMS was the reaction product of pentaerythritol, phosphoric acid, and melamine, and there was an amine and a phosphate ester (both are positively charged) in its chemical structure. It could effectively change the ζ potentials of solid particles and help them aggregate through hydrogen bonds and electrostatic interactions, thereby aggregated particles could settle down at the bottom of the pore holes without severe formation permeability damage, which plays a remarkable role in eliminating the co-production of formation particles with oil. PPMS exhibited an excellent performance when the concentration was 0.8 wt % under 60 °C at a neutral environment, at which PPMS (positively charged) not only can highly condense the double layer electric field but also can better react with clay particles (negatively charged) through adsorption and charge neutralization; thus the negative charge of clay surface could decrease to the minimum (almost 0 mV). At the same time, PPMS might have the potential to enhance oil recovery.

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Section: Introductionmentioning

confidence: 99%

Pentaerythritol Phosphate Melamine Salt, A New Aggregating Reagent for Oilfield Chemical Sand Control: Preparation, Properties, and Mechanism

et al. 2016

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First Commercial Installation of MazeFlo™ Technology for Remedial Sand Control Application in Ubit Field

Okoroh¹,

Hommema²,

Igwebike³

et al. 2013

All Days

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This paper describes the successful installation of the first commercial MazeFlo™ in a remedial sand control application and post job well performance. MazeFlo technology is an enhanced reliability sand screen with applications for remedial sand control and new completions. The reliability enhancement is achieved through a secondary sand screen in combination with a set of compartments to self-mitigate sand breakthrough from primary screen damage. The candidate well is located offshore West Africa with a high angle reservoir interval length of 1500 ft measured depth. It was originally completed with a 4-1/2" pre-perforated liner across the open hole interval without sand control and historically became a sand producer post initial completion. Though a high rate producer, the well was subsequently shut-in for sand production and a MazeFlo screen was installed to restore production. This paper will share installation results and learnings from the rig-based intervention that was required to install the 2-3/8" MazeFlo screen inside the existing 4-1/2" pre-perforated liner. Handling and running of the MazeFlo screens was flawless due to front-end engineering, planning, and collaboration with key service providers. Post job well performance will also be discussed.

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Advanced Modeling of Well Tubulars Erosion by Solids Including Multiphase Effects

Wang

Troshko

Buechler

et al. 2015

Day 1 Mon, November 09, 2015

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Solids erosion of well tubulars can be a major factor impacting production rate limitations. It is well known that erosion rate is very sensitive to production rate. Thus, large uncertainty in erosion rate predictions can result in conservatism in lifetime erosion predictions. As a result, operators may unnecessarily reduce production rates due to fears of an erosional failure of the well tubulars. The best way to predict erosion is through experimental testing; however, in many cases experimental testing can be unrealistic prompting the use of various erosion predictive models to improve well design and production practices. Erosion is a complex phenomenon and even with the most comprehensive and accurate models based on Computational Fluid Dynamics (CFD) prediction of erosion rate is often only a ballpark estimates without proper validation. Furthermore, many wells produce both gas and liquid resulting in different multiphase flow regimes. The location of each phase in the flow stream can have a significant impact on erosion rates. For example, it is known that the presence of thin liquid films along tubular walls in gas flows can significantly reduce erosion rates. Thus, complex modeling of multiphase flow must be incorporated into erosion models in order to accurate capture erosion rates. This paper presents a comprehensive CFD-based model applicable to various well completion types. Our model incorporates solids erosion as well as various multiphase flow regimes. The model was validated extensively against experimental data and shown to improve on previously published erosion patterns and trends in terms of both erosional hot spot locations and erosional rates. This improved model can significantly reduce the uncertainty in solid erosion prediction for use in the selection, design and optimization of well tubulars and completion equipment (e.g. wire wrap screens and inflow control devices).

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Extending the Production Capacity in Sand Control Completions Using a Self-Mitigating Sand Screen

Cited by 4 publications

References 8 publications

Pentaerythritol Phosphate Melamine Salt, A New Aggregating Reagent for Oilfield Chemical Sand Control: Preparation, Properties, and Mechanism

Pentaerythritol Phosphate Melamine Salt, A New Aggregating Reagent for Oilfield Chemical Sand Control: Preparation, Properties, and Mechanism

First Commercial Installation of MazeFlo™ Technology for Remedial Sand Control Application in Ubit Field

Advanced Modeling of Well Tubulars Erosion by Solids Including Multiphase Effects

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