哈里伯顿智能完井再追击 化学试剂注入系统

Optimize Flow Assurance through Chemical Management

The Halliburton Chemical Injection System provides operators with precise wellbore chemical management that is designed to optimize flow assurance and production performance and reduce expensive intervention.

Applications for the Chemical Injection System include:

• Scale
• Asphaltines
• Emulsions
• Hydrates
• Foaming
• Paraffin
• Scavengers
• Corrosion

Benefits

• Maintains flow assurance
• Optimizes production performance
• Helps reduce costly intervention

Features

• Subsea, platform and land applications
• Installation services
• Custom designed mandrels for high and low profile applications

Chemical Injection Mandrels

Two types of chemical injection mandrels are available.

• The non-welded mandrel features a robust one-piece machined design for use in all applications, including deep water. This mandrel utilizes the same design criteria as the permanent downhole gauge mandrel.
• The welded pup joint mandrel is designed for use in lower risk environments such as shallow set, non-deviated wells or land applications.

Dual Check Valves

The Chemical Injection System includes dual check valves, providing redundant checks. The connection to the chemical injection line uses primary and back-up metal-to-metal ferrules to provide improved sealing and physical strength. Burst disc options are available to allow continual verification of control line pressure integrity during installation.

The check valve is available with different cracking pressures, and it has externally pressure testable connections to reduce rig down-time.

Injection Lines and Cable Protectors

Chemical injection lines are available in 316 Stainless Steel and Inconel®825 alloy as standard, with tubing sizes and wall thicknesses to suit all applications.

The chemical injection lines are typically encapsulated or in a bundled configuration. Lines are supplied fluid-filled, flushed and filtered to the client’s required cleanliness standard.

Standard cast or pressed steel cable protectors are used to secure the control lines while running in the hole.

CheckStream® Chemical Injection System

The Halliburton CheckStream® system is a downhole chemical injection system featuring a dual redundant check valve.

The CheckStream system provides precise wellbore chemical management, maintaining flow assurance and continuing production without costly intervention. The dual redundant check valve allows delivery of chemical fluids to the wellbore while simultaneously preventing wellbore fluids and gas from entering the control line and migrating to the surface.

Features

• Dual redundant checks
• Field-installable burst disc with selectable ranges
• Cracking pressures up to 1000 psi
• Range of flow rates up to 8 gallons per minute (GPM)
• Industry-proven testable, dual metal-to-metal FMJ seal connectors
• High pressure and temperature ratings of 15,000 psi differential and 392°F (220°C) for HPHT applications
• Extensive qualification testing performed to achieve highest reliability

CheckStream Mandrel

The CheckStream mandrel features a one-piece machined design for all applications, including deepwater. The one-piece mandrel utilizes the same design criteria as the permanent downhole gauge mandrel.

CheckStream Check Valve

CheckStream dual redundant check valve configurations include a range of flow, variable cracking pressures and different connection sizes providing a variety of options to best suit well conditions. The 3/8-in. and 1/2-in. variants allow for installation of burst disk in the field. The 1/4-in. variant comes with burst already installed.

Connections to the check valve are pressure testable, dual metal-to-metal seal FMJ connectors delivering added protection compared to standard single metal-to-metal seal connections.

CheckStream System Qualification

Extensive qualification testing has been performed on CheckStream mandrels, valves and connectors to achieve the highest reliability in the industry.

CheckStream valves endured thousands of pressure and temperature cycles using liquid and gas test mediums. Long-term endurance testing was also performed helping ensure optimal valve performance throughout the life of the well.