CDI441 Series Hydraulic Bidirectional Anchor Packer for Extended Test Production & Water Blocking

Solving poor vertical pressure resistance in extended test production.
Hydraulic setting with dual-direction choker anchoring, withstand vertical pressure differentials, permanent/retrievable optional, ideal for oil & gas well extended test production, water blocking and wall-hugging zonal isolation.

Main Advantage & Solution

1: Unidirectional anchoring cannot withstand vertical pressure reversal in extended production;
Solution: Dual-direction choker anchoring structure, resist positive/negative vertical pressure differentials, stable zonal isolation.
2: Short service life of packer in long-term test production;
Solution: High-performance sealing and anchoring components, adapt to long-term downhole working conditions.
3: Single application mode limits construction flexibility;
Solution: Both permanent and retrievable design, optional as wall-hugging packer, meet different construction needs.

Parameter	CDI441-114	CDI441-148
Max Outer Diameter	114mm	148mm
Nominal Diameter	48mm	60mm
Working Differential Pressure	35MPa	35MPa
Working Temperature	148°C	148°C
Tool Length	1350mm	1440mm
Connecting Thread	2 7/8 UPTBG	2 7/8 UPTBG
Anchoring Mode	Dual-direction choker	Dual-direction choker

Oil & gas well extended test production and long-term production zonal isolation

High-water-cut well deep downhole water blocking and production layer protection

Permanent/retrievable wall-hugging zonal isolation for deep production wells

Deviated well high-reliability zonal isolation for vertical pressure differential conditions

Patented dual-direction anchoring technology, leading in the industry for extended test production packer performance
High-temperature resistant material selection, adapt to deep well high-temperature production conditions
Strict quality control, 100% long-term pressure holding test before delivery
Customizable design for different wellbore pressure and temperature conditions

We provide our customers with high-quality, reliable solutions backed by robust engineering and fast response capabilities.

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