The production of formation sand is a major problem encountered during the production of oil and ... more The production of formation sand is a major problem encountered during the production of oil and gas from incompetent formations. Sand control techniques have the ability to exclude different sizes of particles depending on the type being employed. However, choosing the best sand control for horizontal wells poses a great challenge to the oil and gas industries. This project, aimed at selecting the best sand control for horizontal wells by analyzing the performance of existing sand control techniques in horizontal wells, investigating the cause of sand control failure in high sand producers and preparing guidelines for sand control selection for future horizontal wells by designing a decision-making tree and preparing recommendations for sand control selection for future horizontal wells. One hundred and forty-five (145) horizontal wells distributed around 21 oil fields with different sand control techniques (slotted liner, reslink, wire wrapped screens, baker excluder screens, OHGP, ESS and pre-packed screens) were analyzed based on productivity, effectiveness, durability, robustness, reliability and cost. The particle size distribution (PSD) plot was obtained from sieve analysis data of two (2) reservoirs through which high sand producer wells were drilled to know the cause of their sand control failure. On completion of the performance analysis it was concluded that RESLINK was the best sand control for future horizontal wells and from the PSD plot, it was deduced that oil and gas companies do not always follow appropriate sizing and sand control method selection.
The production of formation sand is a major problem encountered during the production of oil and ... more The production of formation sand is a major problem encountered during the production of oil and gas from incompetent formations. Sand control techniques have the ability to exclude different sizes of particles depending on the type being employed. However, choosing the best sand control for horizontal wells poses a great challenge to the oil and gas industries. This project, aimed at selecting the best sand control for horizontal wells by analyzing the performance of existing sand control techniques in horizontal wells, investigating the cause of sand control failure in high sand producers and preparing guidelines for sand control selection for future horizontal wells by designing a decision-making tree and preparing recommendations for sand control selection for future horizontal wells. One hundred and forty-five (145) horizontal wells distributed around 21 oil fields with different sand control techniques (slotted liner, reslink, wire wrapped screens, baker excluder screens, OHGP, ESS and pre-packed screens) were analyzed based on productivity, effectiveness, durability, robustness, reliability and cost. The particle size distribution (PSD) plot was obtained from sieve analysis data of two (2) reservoirs through which high sand producer wells were drilled to know the cause of their sand control failure. On completion of the performance analysis it was concluded that RESLINK was the best sand control for future horizontal wells and from the PSD plot, it was deduced that oil and gas companies do not always follow appropriate sizing and sand control method selection.
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