Slotted & Seamed Liners
Datasheet: [PDS-0001 R4]
RGL developed the API certification for slotted liners, allowing us to provide the highest standards in quality, accuracy and delivery. Our innovative manufacturing methods and rigorous quality control standards provide a variety of slot configurations with precise tolerances. Based on core particle size analysis, RGL can custom design slotted liner according to specific reservoir sand distribution, optimizing sand retention and inflow/outflow distribution with various slot designs. Our extensive manufacturing capabilities ensure quick production turnaround time to meet customer demands and scheduling.
RGL’s proSTRAIGHT slotted liner has superior mechanical strength and integrity that provides a reliable, durable and economic solution for reservoirs with low fines and clays contents. Finite Element Analysis ensures the load conditions are met for each application. RGL’s patented thermal deburring technology effectively deburrs the ID of the slotted liner, reducing the risk of induced pressure drop.



  • Heavy Oil, Bitumen, Light Oil, Gas, Coal Bed Methane (CBM), Unconsolidated Sand, Medium Oil, Carbonates, High CO2/H2S Reservoir Environment
  • Cold Primary, Steam-Assisted Gravity Drainage (SAGD), Cyclic Steam Stimulation (CSS), Steam Flood, Geothermal, Water Injection, Polymer Injection
  • Horizontal, Deviated and Vertical Wells

Features & Benefits

  • API Q1 Certified manufacturing processes
  • Patented thermal deburring technology - 90%+ burr internal clean up
  • Excellent robustness with low risk of collapse or deformity
  • Economic straight slot for low fines and clays reservoirs
  • Minimal restrictions – no outer screens


  • Sand Control Engineering with RGL’s proprietary semi-empirical slot width modelling program
  • RGL Sand Control Lab Testing for optimum specifications
  • Multiple thread options
  • Finite Element Analysis (FEA) for installation and/or thermal loading
  • Thermal or mechanical deburring options
  • A wide range of casing grades available with 13 Chrome, 28 Chrome, and RGL ENC coating options
  • Slotting Patterns: In-line, Staggered, Gang

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