Downhole Deployment Valve / Casing Valve

Model

Torrent-DT-DDV

The Downhole Deployment Valve / Casing Vavle by Torrent Oil Tools is a sophisticated subsurface isolation valve engineered to improve safety and operational efficiency during drilling, especially in underbalanced or near-balanced pressure conditions. This valve allows for secure tripping and bottom-hole assembly (BHA) placement without overpressurizing the well or harming the reservoir.

Feature

Enhanced Safety and Reservoir Integrity

Eliminates the need for pressured pipe tripping or well killing.
Reduces the likelihood of formation damage and uncontrolled flow.
Supports safe well flowback before full pressure exposure.

Efficiency Gains

Enables tripping operations at normal speeds, reducing downtime.
Compatible with full-bore drilling assemblies.
Accommodates complex BHAs that are difficult to seal externally.

Robust and Flexible Design

Can be installed with casing strings or liner hanger systems.
Operated hydraulically via a surface-deployed armored control line.
Available in various sizes and pressure ratings, up to 15,000 psi.

Technical Highlights

Available sizes: 7" to 9 5/8"
Pressure ratings: 3K, 5K, 10K, and 15K psi
Operating temperature: Up to 300°F (149°C)
Tensile strength up to 900,000 lbf (4,003 kN)

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Application

Controlled Pressure Drilling
Widely used in drilling environments where conventional pressure control is insufficient or risky.

Underbalanced and Managed Pressure Drilling
Ideal for maintaining reservoir integrity in pressure-sensitive zones.

Well Completion Operations
Effective for deploying slotted liners, sand control screens, and other completion assemblies in expandable formations.

Complex Drilling Assemblies
Supports deployment of BHAs with mud motors, stabilizers, or unique profiles that prevent external sealing.

Well Construction Integration
Seamlessly fits into standard well designs with flexibility for cementing or liner suspension.

Optimized Table

Model	Specification (mm)	Internal Pressure Resistance (MPa)	External Collapse Resistance (MPa)	Tensile Strength (kN)	Sealing Pressure (MPa)	Opening/Closing Cycles (times)	Depth Rating (m)
TGF245	Ø 244.5	66	43	5500	35	75	2200
TGF178(I)	Ø 177.8	96.3	86.5	3380	35	75	2200
TGF178(II)	Ø 177.8	96.3	86.5	3380	35	75	2200
TGF194	Ø 193.7	76.3	76.7	4830	35	75	2200

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Headquarters

+86 137 0636 0980
No. 233 High tech Development Zone,
Dongying City, Shandong, China

R&D center

+86 178 5461 4320
No. 2, Weiwu Road, High-tech Zone, Yantai City, Shandong, China

Manufacturing center

+86 139 5450 2520
Tianding Industrial Park, E&T Development Zone, Xi'an, Shaanxi Province, China

Email: sales@torrent-oiltools.com

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