Mill Surveillance

The quality assurance and control processes commence well before manufacturing process begins.  T H Hill first provides a combination of Project Managers, Engineers and QA/QC Technicians to review the Process Control Points (PCPs) in order to identify witness, monitoring, and documentation review points for all stages of the manufacturing process. These are established in accordance with applicable client requirements in a pre-production meeting where the client’s concerns and choices are discussed and applicable standards agreed upon.  


Check lists are then developed for review of the documentation, manufacturing processes and receiving inspections.  An Engineer reviews material specifications and establishes accept/reject criteria that are used to monitor manufacturing and inspection of all the drill string components.  


The T H Hill Project Manager makes initial visits to evaluate systems specific to the client’s order, meet with manufacturing personnel and discuss T H Hill’s involvement in line with the PCPs. These processes are then monitored by the Technicians who will witness, review and document manufacturing and mill inspection and prepare weekly status reports for submittal to the client.  


This closely monitored process is shared by the Project Manager in regular client meetings throughout the manufacturing process to ensure that the client’s requirements are met and the equipment delivered is fit for purpose.

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T H Hill Main Office

+1.281.671.5700

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