DELTA (Doha) Corporation

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X-mas Trees

Delta Corporation offers complete sets of :

Composite Trees

Composite trees generally consist of the following:

Studded adaptors, Tree caps, Specific number of gate valves, chokes and studded trees or crosses upon customer request.

The tree cap can have different threads such as VAM, NEW VAM, EUE etc. We can also provide actuated valves for safety purposes.

Chokes can be positive or adjustable depending on the customer requirements. All these configurations can be provided with different sizes ranging from 2-1/16” to 5-1/18” with also different pressure ratings and PSL requirements.

Single Block Trees

Delta has manufactured several sizes of Solid Block Christmas tree, having manually operated valves and actuator operated valves.

The advantages of going for a solid block tree are reduced overall height, reduced potential leak paths and easier installation. Delta valves can be integrated into tree blocks using API end connections and outlet connections as covered by API 6A.

The associated tubing hanger sealing systems are designed accordingly to provide an overall integrated design installation. With the most modern CAD design facilities, Delta can quickly produce a design for a desired integral tree block configuration.

This is manufactured to the same high standards and generally from the same materials as Delta valves and can incorporate Delta’s hydraulically operated, wireline-cutting-and-sealing valves. These valves are designed to fail-safe in an emergency and to cut braided a slickline wire up to 0.23” diameter. A variety of proprietary actuators can be offered for this duty.

For services where higher corrosion levels may be experienced and/or H25 embrittlement may be expected integral tree blocks provide an economic solution by means of Inconel cladding of bores, sealing areas and valves cavities.

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Dual Block Trees

Delta can provide customers with several sizes of Dual Block Christmas trees having manual operated valves and actuator operated valves.

The purposes of using Dual Bores is producing oil from different levels inside the same well and using it for multi-lateral drillings. Delta valves can be integrated into tree blocks using API 6A standards.

The associated tubing hanger sealing systems are deigned accordingly to provide an overall integrated design installation. With the most modern CAD design facilities, Delta can quickly produce a design for a desired integral tree block configuration. This is manufactured to the same high standards and generally from the same materials as Delta valves and can incorporate Delta’s hydraulically operated, wireline-cutting-and-sealing valves as indicated opposite. These valves are designed to fail-safe in an emergency and to cut braided a slickline wire up to 0.23” in diameter. A variety of proprietary actuators can be offered for this duty.

For services where higher corrosion levels may be experienced and/or H2S embrittlement may be expected, integral tree blocks provide an economic solution by means of Inconel cladding of bores, sealing areas and valves cavities. To the right is a typical assembly drawing for a Delta Dual Block Tree with the following specifications: X-mas tree dual composite solid block with dual double master and swab valves 3 1/8”-5M upper master valves are fitted with wireline cutting hydraulic actuator. Lower master valves are manually operated.

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