This article is written for Kill Manifold used in API 16C drilling well-control and choke/kill manifold service. The product should be confirmed by its real oilfield service position, not only by a short catalogue name. For API oilfield equipment, the useful specification combines pressure rating, nominal size, end connection, service condition, material or seal requirements, and inspection documents.
The kill manifold is important equipment for oil and gas well pressure control. It is mainly used during well-control operations to pump heavy drilling fluid into the well, balance bottom-hole pressure, control well pressure conditions, and ensure safe drilling, workover, and related well-control operations.
Products can be specially designed and manufactured according to field service conditions, well-control system configuration, and connection requirements to meet kill-operation requirements under different pressure ratings and line layouts. Cold working pressure ranges from 3,000 psi (21 MPa) to 15,000 psi. Flange nominal sizes include 2-1/16", 2-9/16", 3-1/8", and 4-1/16". Applicable fluids include mud, oil, natural gas, and similar media.
Inspection before installation should focus on identification marks, sealing faces, threads or flange faces, visible damage and document consistency. The goal is to confirm that the item received is the same item approved for the job.
Key points to confirm
For Kill Manifold, we normally recommend confirming the following items before quotation, production or replacement.
- Applicable standard or project requirement: API 16C.
- Working pressure, test pressure, nominal size and bore requirement.
- End connection type, mating equipment, flow direction and installation space.
- Service condition such as standard service, NACE sour service or low-temperature service.
- Required documents such as MTC, pressure test report, NDT report and third-party inspection.
Field use and inspection
Kill Manifold should be checked as part of the complete high-pressure system. Sealing surfaces must be protected, connections should be clean before make-up, and the product should not be forced into alignment by side load, hammering or pulling. If leakage, abnormal operation or pressure-test instability occurs, the model, pressure, medium, photos and test conditions should be recorded for technical review.
Information for quotation
For new projects, please provide the line layout, operating pressure, medium, temperature, connection standard and document requirements. For replacement work, old-part photos, nameplate or body markings, end-connection close-ups and installation position help us confirm the correct Kill Manifold quickly.