Surface Test Tree, Wellhead-Mounted 1502, 15,000 psi, Standard Service

The Surface Test Tree, Wellhead-Mounted 1502, 15,000 psi, Standard Service is a surface test tree (STT) for wellhead-mounted stt service, 15K class (15,000 psi working pressure), standard rated. Standard service rated for clean hydrocarbon and completion-fluid streams.

Construction

• Configuration: Wellhead-Mounted STT
• Nominal vertical bore: 5-1/8 in vertical bore
• Valves: 4 valves: 1 master, 1 swab, 2 wing
• Valve types: Hydraulic gates (master + wing); manual gate (swab)
• End connections: Top: 1502 Female Weco. Bottom: API 6BX 15K studded (permanent wellhead). Lateral: 2× 1502 Female Weco.
• Hydraulic actuation: 3,000 psi pilot
• Material class: AA
• Temperature class: P

Operation

The STT functions as the primary surface pressure-control barrier during well-stimulation, well-test, coiled-tubing, snubbing, or subsea operations. Master valves provide the primary seal; swab valves enable wireline access; wing (lateral) valves route flow to the choke / flowback iron. Hydraulic actuators allow remote operation from the operator's panel — fail-safe close on hydraulic loss. Conventional frac variants stack above the wellhead frac tree to control flowback pressure during frac stimulation.

Performance

Working pressure 15,000 psi (15K class). Hydrotested at 1.5× shell pressure. Designed and manufactured to API 16C. Each valve hydrotested per API 6A / 16C requirements before assembly.

Applications

• Permanent production-well surface testing
• Wellhead-integrated intervention iron
• Single-well test loops

OEM equivalents and compatibility

This STT is supplied as a recognised matched-spec interchange for the following OEM product lines (no implied authorised-distributor relationship):

• Wellhead STT 15K
• FMC Wellhead Tree
• Cameron Mounted STT

Compliance

• API 16C design and manufacture
• API 6A material class: AA
• API 6A temperature class: P
• EN 10204 3.1 / 3.2 mill test reports
• Hydrostatic body, valve seat, and back-seat test certificates per unit

How to order

Confirm on your RFQ: (a) operation type (frac / coiled-tubing / snubbing / subsea / well-test), (b) target working pressure and pressure class, (c) vertical bore and end-connection requirements (top / bottom / lateral), (d) valve count and types, (e) service class — sour (NACE MR0175) or standard, (f) hydraulic actuation pressure / panel requirements, (g) coiled-tubing pack-off requirement, and (h) certification beyond standard MTRs. Indus quotes ex-Dubai with full FAT (factory acceptance test) report on request.

Companion products

Pair with matched-class wellhead, frac tree, choke manifold, blowdown manifold, hydraulic control panel, hose loops, and pressure-relief lines. For coiled-tubing service, additionally specify pack-off / stripper, BOP stack, and reel iron.