CAMERON AAP3798102-00131 Wellhead Hydraulic Control Module Introduction

Product Description

The CAMERON AAP3798102-00131 is a high-performance hydraulic control module designed for critical wellhead and production equipment operation in the oil and gas industry. Manufactured by Cameron, a leading provider of flow control solutions for energy sectors, this module serves as a core component in wellhead control systems (WHCS), enabling precise regulation of hydraulic pressure to actuate valves, chokes, and other downhole or surface equipment.

Engineered to withstand extreme operating conditions, including high pressure, temperature fluctuations, and corrosive environments, the AAP3798102-00131 ensures reliable performance in both onshore and offshore applications. It integrates advanced pressure regulation components and safety features to maintain operational integrity, supporting safe and efficient hydrocarbon production.

Product Parameters

Parameter	Specification
Product Type	Wellhead Hydraulic Control Module
Manufacturer	Cameron (a Schlumberger company)
Operating Pressure Range	0–10,000 psi (hydraulic control pressure)
Operating Temperature Range	-40°C to 121°C (-40°F to 250°F)
Material of Construction	Body: Carbon steel (ASTM A105); Internal components: 316 stainless steel, nitrile rubber seals
Hydraulic Fluid Compatibility	Mineral oil-based hydraulic fluids (ISO 32/46), water-glycol mixtures (with compatible seals)
Flow Capacity	2.5 gpm (gallons per minute) at maximum operating pressure
Control Interface	1/4″ NPT (National Pipe Thread) hydraulic inlet/outlet ports
Safety Certification	Compliant with API 6A, API 16D (Wellhead and Christmas Tree Equipment; Control Systems for Drilling and Production)
Weight	Approximately 18 kg (40 lbs)
Dimensions (L x W x H)	356 mm x 203 mm x 254 mm (14″ x 8″ x 10″)
Power Requirement	Hydraulically actuated (no electrical power needed for basic operation)

Product Specifications

Physical Specifications

The AAP3798102-00131 features a robust carbon steel body (ASTM A105) for structural strength, with internal components crafted from 316 stainless steel to resist corrosion. Nitrile rubber seals ensure leak-tight performance under high pressure. Its compact dimensions (356 mm x 203 mm x 254 mm) and weight of 18 kg allow for easy integration into wellhead control panels, even in space-constrained offshore platforms.

Performance Specifications

Designed to operate at hydraulic control pressures up to 10,000 psi, it delivers a flow capacity of 2.5 gpm, enabling rapid actuation of downstream valves. The module maintains consistent performance across a wide temperature range (-40°C to 121°C), ensuring reliability in extreme cold (arctic regions) and high-heat (desert or subsea) environments. Its pressure regulation accuracy is ±2% of setpoint, critical for precise valve control.

Compliance Specifications

It meets stringent industry standards, including API 6A (for wellhead equipment) and API 16D (for control systems), ensuring compatibility with global oil and gas safety protocols. The module is also certified for use in hazardous areas, with optional ATEX/IECEx ratings for explosive atmospheres.

Series

The AAP3798102-00131 belongs to Cameron’s Wellhead Control Systems (WHCS) product line, a family of hydraulic and electro-hydraulic control modules designed for upstream oil and gas operations. This series includes modular components such as pressure regulators, manifolds, and actuators, engineered to work seamlessly together. Cameron’s WHCS series is trusted for its scalability—supporting single-well to multi-well installations—and adaptability to diverse reservoir conditions, from conventional oil fields to high-pressure/high-temperature (HPHT) wells.

Features

Extreme Environment Durability

The carbon steel body and corrosion-resistant internal components enable operation in harsh conditions, including exposure to saltwater (offshore), sand (desert), and corrosive hydrocarbons.

High-Pressure Precision

Withstands up to 10,000 psi and maintains ±2% pressure regulation accuracy, ensuring precise control of critical wellhead valves (e.g., master valves, wing valves).

API Compliance

Certified to API 6A and API 16D standards, it meets global safety and performance requirements for oil and gas operations.

Hydraulic Actuation

Operates without electrical power, reducing reliance on complex electrical systems in remote or hazardous locations. Optional electro-hydraulic upgrades are available for automated control.

Leak-Tight Design

Nitrile rubber seals and precision machining prevent hydraulic fluid leaks, minimizing environmental risk and maintaining system efficiency.

Function

The primary function of the AAP3798102-00131 is to regulate and direct hydraulic pressure to actuate wellhead valves and equipment. It receives high-pressure hydraulic fluid from a central power unit, reduces it to a preset control pressure, and distributes it to downstream actuators. By modulating pressure flow, it controls the opening/closing of valves (e.g., to isolate sections of the well, manage flow rates, or shut down operations during emergencies).

The module acts as a safety-critical component, ensuring valves respond predictably to control signals. In emergency scenarios, it can rapidly depressurize actuators to trigger valve closure, preventing hydrocarbon leaks and protecting personnel and assets.

Use

In field applications, the module is installed within wellhead control panels, typically mounted on skids or offshore platforms. It connects to a hydraulic power unit (HPU) via 1/4″ NPT inlet ports and to downstream valve actuators via outlet ports. Technicians calibrate the pressure setpoint using an integral adjustment knob, tailored to the specific valve actuation requirements of the well.

For basic operation, no electrical power is needed—hydraulic pressure alone drives actuation. In automated systems, it can be paired with solenoid valves for remote control via SCADA (Supervisory Control and Data Acquisition) systems. Regular maintenance involves inspecting seals for wear, verifying pressure regulation accuracy, and flushing hydraulic fluid to remove contaminants.

Application Fields

Offshore Oil and Gas Production

Used on offshore platforms and subsea wellheads to control valves in corrosive saltwater environments, where its durable construction resists marine corrosion.

Onshore High-Pressure Wells

Ideal for HPHT wells (e.g., shale gas or deep conventional reservoirs) requiring precise pressure regulation to manage extreme downhole conditions.

Arctic and Desert Operations

Performs reliably in extreme temperatures (-40°C to 121°C), supporting oil and gas extraction in arctic regions or desert basins.

Emergency Shutdown Systems (ESD)

Integral to ESD networks, it enables rapid valve closure during crises (e.g., pressure spikes, gas leaks) to enhance operational safety.

Well Completion and Workover

Facilitates controlled actuation of completion tools (e.g., packers, sliding sleeves) during well setup and maintenance operations.

In summary, the CAMERON AAP3798102-00131 hydraulic control module is a critical component in wellhead control systems, combining durability, precision, and safety to enable efficient and reliable hydrocarbon production across diverse energy applications. Its compliance with industry standards and robust design make it a trusted choice for upstream oil and gas operations worldwide.