Choosing the Right Screen Mesh for Your Linear Shaker

Screen mesh selection is one of the most important operational decisions for linear motion shale shaker performance. Aipu Solids Control provides screens from API 40 to API 200 and offers guidance for matching mesh size to drilling conditions.

Understanding API Screen Classification

API RP 13C establishes standardized screen testing and classification, replacing the older mesh count system that varied between manufacturers. Under API 13C, screens are classified by their cut point—the particle size at which the screen retains a specified percentage of particles—measured using calibrated test materials and standardized procedures. Aipu API-certified screens carry cut point designations that allow direct comparison between different screen types and manufacturers. This standardization eliminates the confusion that arose when one manufacturer “100 mesh” screen performed differently from another manufacturer screen with the same nominal designation.

Mesh Selection by Drilling Phase

Screen mesh selection follows a progressive strategy through the drilling program. Surface hole sections generating large, coarse cuttings require coarser screens—API 40 to API 60—that provide maximum throughput capacity to handle high volumes. Intermediate hole sections benefit from API 80 to API 120 screens that balance throughput with improved separation as cuttings become smaller. Production zones and reservoir sections demand the finest practical screens—API 140 to API 200—to minimize formation damage from drilled solids invasion. Aipu quick-change screen system makes it practical to implement this progressive strategy, changing screens as the drill bit enters each new hole section.

Balancing Throughput and Separation Quality

Finer screens provide better separation but reduce throughput capacity. The art of screen selection is finding the finest screen that maintains adequate capacity for the current circulation rate. Start with the manufacturer capacity rating for each mesh size and verify with actual field performance. Aipu provides capacity guidance for all screen specifications, helping operators predict throughput before making screen changes. If circulating rate exceeds the capacity of the desired screen mesh, options include adding a second shaker, switching to a coarser screen, or reducing circulation rate if drilling conditions permit.

Frame Material Considerations

Aipu offers stainless steel frames for maximum durability in abrasive applications and composite frames for lighter weight, corrosion resistance, and reduced sticking with oil-based mud. The frame material choice affects handling during screen changes and screen life under specific conditions.

Partner with Aipu for certified quality. Contact us at info@aipusolidcontrol.com to discuss your requirements and discover the Aipu difference in API Q1 certified solids control equipment.