Sandy Well, Sand Control and Gravel Pack Technology

DESKRIPSI

SASARAN BELAJAR :

Setelah menyelesaikan kursus ini diharapkan peserta dapat :

• Memahami dasar-dasar problema kepasiran dan penggunaan berbagai metoda pencegahannya untuk keperluan operasi produksi-injeksi reservoir minyak dan gas bumi.
• Memahami cara-cara mengatasi dan menangani problema kepasiran pada sumur-sumur produksi minyak, gas dan panas bumi.
• Memahami prinsip-prinsip dasar penggunaan peralatan untuk pelaksanaan penangan problema kepasiran di lapangan minyak dan gas bumi.
• Melakukan diagnosis sederhana dan melakukan penyelesaian persoalan yang berkaitan dengan problema pasir yang turut terproduksi ke permukaan.
• Melakukan perhitungan-perhitungan kuantitatip sederhana untuk berbagai keperluan industri dan pelaksanaan operasi gravel pack dan fract pack di lapangan dan cara penanganannya.

PRE-REQUISITE :

• Latar belakang : Operator, Senior Operator, Engineer, Non Engineer

MATERI KURSUS :

Unstable Formations

• Contituents of sand
• Sand cementation
• Mineral bonding

Reservoir Characterization

• Reservoir Characterization Process
• Friamble Formation
• Partially consolidated
• Totally unconsolidated

Formation Strength & Mechanical Properties

• How a material gets its strength?
• Mineral bonding
• Differentiating between fines production & formation failure
• How strength is measured?
• Young?s Modulus (E)
• Poisson?s ratio (?)
• The Biot constant (?)
• Selecting rock for determining sanding potential

IN-SITU Stresses

• Far field stresses
• Near wellbore stresses
• Determining field stresses

Failure Mechanisms

• Shear Failure
• Tensile Failure
• Cohesive Failure
• Chemical Effects
• Critical Production Rate
  1. Sand Movement Prediction
  2. Sand Production
• Physics of sand production
• Dynamic process at the microscopic level
• Multi-phase flow aspects
• Stress changes during sand production
• Physical forms of sand production
• Dilated region (cavities)
• Wormhole formation
• Wormhole splitting and network development
• The modelling of sand production
• Phenomenological or engineering approach
• Continuum approach
• Discontinuum approach
• A hybrid approach

Sand Management

• Background
• Prediction
• Prevention
• Production
• Conclusion

Sand Control

• Definition of Sand Control
• Critical Flow Rate Effect
• Formation Strength Versus Drag Forces
• Sand Control Mechanisms
• Reduction of Drag Forces
• Mechanical methods of sand control
• Resin Consolidation methods of sand control
• Comparisons of sand control method summary

Mechanical Methods of Sand Control

• Development of Design Criteria
• Practical Considerations in Gravel Packing
• Operation and Calculation of Gravel Pack
• Operation and Calculation of Fract Pack

Course Leader :

Dr. Ir. Sudjati Rachmat, DEA

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