Chow Marine Logo
Home / SERVICES / Remote Maintenance & Repair
43.2557° N, 79.8711° W // HAMILTON PORT DISPATCH
SERVICE CAPABILITY // CHOW MARINE

Remote Maintenance & Repair

Robotic tooling, bolting, and underwater structural rehabilitation.

Robotic tooling, bolting, and underwater structural rehabilitation.

MANIPULATORS Hydraulic Multi-Function
TOOLING Torque, Cutting, Grinding
VIDEO RECORD 4K Ultra-Low-Light CCTV
PRECISION Millimeter Positional Control
OPERATIONAL OVERVIEW & METHODOLOGY

Remote Subsea Mechanical Maintenance & Tooling

Subsea ROV hydraulic cutting, mechanical flange bolting, and anode welding.

Deep subsea mechanical repairs require specialized tooling packages capable of delivering high hydraulic power with surgical accuracy.

Chow Marine provides turnkey remote maintenance services utilizing custom-engineered ROV skid tools, diamond wire cutters, hydraulic torque wrenches, and subsea stud tensioners.

Our systems perform subsea pipeline cold-cutting, flange gasket replacement, underwater bolt torquing, and sacrificial anode installation without requiring divers in deep or hazardous waters.

All operations are tracked via synchronized high-definition video, multi-angle telemetry sensors, and digital torque-turn logging systems that certify every connection meets API and ASME engineering specifications.

STANDARD OPERATING PROCEDURE (SOP) PROTOCOL // 4-PHASE RIGOR
01

Engineering CAD Tooling Design

Design and simulation of specialized ROV torque skids and reaction brackets for target asset.

02

Top-Side Testing & Calibration

Full-scale functional testing and pressure testing of all hydraulic actuators and cutters in test tanks.

03

Subsea Tooling Ingress

Deployment of ROV tooling package to subsea workface with dynamic positioning support.

04

Torque Certification

Digital recording of achieved bolt tension/torque values and final leak-check acoustic monitoring.

ENGINEERING SPECIFICATIONS MATRIX CALIBRATED FIELD DATA
Torque Capacity Up to 15,000 Nm Hydraulic
Cutting Capability Diamond Wire cuts up to 36-inch Steel Pipe
Manipulator Power 7-Function Proportional Master-Slave
Positioning Acoustic USBL Navigation 0.1m Precision
Recording Certified Digital Torque/Tension Logs
FIELD DEPLOYMENT CASE PROFILE VERIFIED HARBOR LOG

Subsea Intake Sluice Gate Actuator Pin Replacement

CLIENT / SECTOR: Hydro-Electric Generation Utility

Removal of a sheared 75mm stainless steel hinge pin and installation of a replacement assembly at a depth of 42 meters.

OPERATIONAL OUTCOME: Completed entirely via remote ROV tooling in 18 hours, eliminating the need for complex deep-diving decompression procedures.
TECHNICAL FAQ FREQUENT INQUIRIES
01

What size pipes can your diamond wire cutters handle subsea?

add

Our mobile subsea diamond wire cutters can slice through multi-string pipes, concrete-coated lines, and heavy structural tubulars up to 48 inches (1,200mm) in diameter.

02

How do you verify subsea bolt torque accuracy?

add

Our hydraulic torque wrenches interface with calibrated pressure transducers and digital telemetry that log applied torque in real time, generating an indisputable quality assurance certificate.

03

Can your tooling operate in zero-visibility conditions?

add

Yes. By utilizing acoustic positioning, tactile positioning jigs, and dual-frequency 3D sonars, our pilots execute precise mechanical docking and bolting without relying on optical visibility.

Remote Subsea Mechanical Maintenance & Tooling
CHOW MARINE INDUSTRIAL RIG HAMILTON HARBOR // 24/7 ACTIVE READINESS
MISSION COORDINATION & DISPATCH

Ready To Mobilize Crew & Tooling?

Connect directly with our Hamilton operations superintendent for emergency rapid mobilization, site evaluation, and firm engineering proposals.

COMPLIANCE & SAFETY ASSURANCE • SSPC-QP 1 / 2 Certified Surface Preparation • ISO 9001 / ISO 14001 Quality & Environmental Systems • Zero-Recordable Safety Target Policy