WELLHEAD EQUIPMENT

Single & Dual String Block Trees

Name: Single & Dual String Block Trees
Brand: Energy Equipment International

Block trees integrate principal flow-control passages and valve cavities into a compact body to reduce overall height and connection count. Single- and dual-string arrangements are selected around the completion architecture.

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Representative equipment image. Final configuration is project-specific.

FUNCTION & PURPOSE

What the equipment does

Controls one or two production strings
Reduces tree height and external connections
Provides accessible master, wing and swab isolation
Supports oil, gas, gas-lift and injection service
Accommodates control-line ports where required

AVAILABLE ARRANGEMENTS

Typical configurations

Single-string block tree
Dual-string block tree
With or without multiple control-line ports
Elastomeric/interference seals or metal-to-metal sealing where approved
Compact-access layout

PRODUCT TYPES & DESIGN OPTIONS

Products in this family.

Each type is reviewed as a separate technical selection. Compatibility, ratings, dimensions, seals and interfaces must be confirmed against the approved wellhead and completion design.

Single-string block tree

Compact integrated tree body for one production tubing string.

Reduced overall height
Single production bore
Accessible valve arrangement

Dual-string block tree

Compact integrated tree for two tubing strings and associated control requirements.

Up to 10,000 psi reference range
Up to 4-1/16 inch completion size
Optional multiple control-line ports
Sweet or sour service

TECHNICAL REQUIREMENT TABLE

Specification basis

Design basisAPI 6A / ISO 10423, subject to the approved purchase specification

Rated working pressureProject-specific; reference ranges shown where stated by the source product page

Temperature classSelected for the approved operating envelope

Material classSelected for standard, sour or corrosive service

PSL / PRConfirmed from the customer data sheet and applicable API 6A edition

DocumentationApproved drawings, material certificates, pressure-test reports and traceability records as agreed

Reference working pressureUp to 10,000 psi

Reference completion sizeUp to and including 4-1/16 inch

Control-line portingWithout ports or with single/multiple ports

Seal optionElastomeric/interference or metal-to-metal, subject to approved design

Values are confirmed against the customer specification. Availability is subject to the approved scope, manufacturer capability and technical review.

TYPICAL APPLICATIONS

Where it is used

Single and dual completions
Oil and gas production
Gas lift
Flooding and injection operations
Sweet, sour and corrosive service when specified

STANDARDS & DOCUMENTATION

Supply can be reviewed against API 6A / ISO 10423 and other project-specified requirements, where applicable. The agreed documentation package may include material certificates, dimensional records, pressure-test reports, inspection records, certificates of conformity, packing lists and traceability documents.

FOR AN ACCURATE OFFER

Information to include in your enquiry

Equipment name and quantity
Size, bore and working pressure
Temperature and material class
PSL, PR and sour-service requirement
End connections and mating equipment
Datasheet, drawing, nameplate or photograph
Inspection and documentation requirements
Required delivery location and schedule

TECHNICAL & COMMERCIAL ENQUIRY

Need single & dual string block trees?

Send the available RFQ, data sheet, drawing, equipment details or photographs. We will review the requirement and respond with any necessary clarification.

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