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 Committee Scope

SC16 Subcommittee on Well Control Equipment and Supporting Systems for Drilling and Intervention​​ Operations, develops, approves, and maintains standards pertaining and related to the design, manufacturing, inspection, testing, maintenance, and operation of well control and pressure control equipment installed at or above a drilling wellhead or production equipment.  SC16 standards cover well control equipment, pressure control equipment and its supporting systems utilized in drilling, completions, workovers, interventions, and well servicing operations.  The standards developed and maintained by SC16, under the guidance advised from its ranking officers and members, is supported with additional resources having expertise in the areas of drill through equipment and its controls, pressure control equipment, manufacturing and well control operations.


SC16 maintains or is currently developing the following standards:

16A       Spec: Drill-through Equipment                                                                                     
16AR     Std: Repair & Remanufacture of Drill-through Equipment
16AS     Std: Integration of Subsea BOP Equipment Systems for Drilling Wells                         In development
16B       Spec: Coiled Tubing, Snubbing, and Wireline Well Control Stack Equipment              In development
16C       Spec: Choke and Kill Equipment
16CBM RP: Condition Based Maintenance Systems                                                                      In development
16CR     Std: Repair and Remanufacture of Choke and Kill Equipment                                       In development
16D       Spec: Control Systems for Drilling Well Control Equipment and
Control Systems for Diverter Equipment
16F        Spec: Marine Drilling Riser Equipment
16FI       RP: Frac Iron Inspections                                                                                                ​      In development
16FR     Std: Repair & Remanufacture of Marine Drilling Riser Equipment                                In development
16G       TR: Well Reliability Model                                                                                                     
16H       Bulletin: Automated Safety Instrumented Systems

16K       Bulletin: New Technologies                                                                                                  In development
16Q       RP: Design, Selection, Operation and Maintenance of Marine Drilling Riser Systems
16RCD  Spec: Rotating Control Devices
16SB     RP: Snubbing and Hydraulic Workover Well Control Equipment Systems                   In development
16SP     RP: BOP Shear Ram Performance Test Protocol                                                               (Currently 16TR1)
16ST      RP: Coiled Tubing Well Control Equipment Systems
16WL    RP: Wireline Pressure Control Equipment Systems for Cased Hole                              In development
16WS    RP: Surface Well Servicing Pressure Control Equipment                                                In development
Std 53   Std: Well Control Equipment Systems for Drilling Wells
RP 59    RP: Well Control Operations
Std 64   Std: Diverter Equipment Systems


Further details and scopes of the Series 16 standards can be found in the Exploration and Production section of the API Publications catalog.

 Reference Documents
 CSOEM Links


 Ballot IDStatusResultsOpensClosesDescription
Committee ID : 23522872SC16 Task Group 1- 16A,16AR,16AS,16SP
6110ClosedResolution Required07/14/202309/15/2023API Spec 16A Specification for Drill-Through Equipment, 4th Edition, Addendum 2 (HPHT)
6144ClosedResolution Required08/30/202310/27/2023API TR 16CV Charpy V-notch Location for Weld Qualification, 1st Edition
6217OpenIn Progress11/17/202301/01/2024Full Draft Reballot: API Std 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, 2nd Edition
Committee ID : 23552873SC16 Task Group 2 - 16B, 16ST, 16WL, 16WS, 16SB
6026ClosedResolution Required03/10/202304/28/2023API Spec 16B, Coiled Tubing, Snubbing, and Wireline Well Intervention Equipment, 1st Edition
Committee ID : 23532870SC16 Task Group 3 - 16C, 16CR
5839ClosedResolution Required08/22/202210/03/2022API Spec 16C, Choke and Kill, 3rd Edition, Addendum 1
Committee ID : 23572875SC16 Task Group 5 - S53,S64,RP59,16CBM,16G,16H
6071ClosedResolution Required05/08/202307/05/2023API Standard 64 Diverter Equipment Systems, 4th Edition
Committee ID : 23582876SC16 Task Group 6 - 16F, 16FR, 16Q
6173ClosedResolution Required09/25/202310/23/2023API RP 16Q, Design, Selection, Operation, and Maintenance of Marine Drilling Riser Systems, 2nd Edition, Addendum 2
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