cement replacement - long term zonal isolation packer

Cement replacement

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Life-of-the-well annular sealing in cementless completion

cement replacement - open hole packer

Challenge

Nowadays, cementing operations are the most common techniques used in the upstream oil and gas business to guarantee a critical hydraulic barrier between the casing and the formation. The goal is to isolate individual zones and prevent annular flow.
As such, annulus cementing is mainly considered one of the essential operations during the well construction.
However, the cement is likely to fail, and may not guarantee the requested downhole zonal isolation during the whole life-of-well.

Solution

Openhole annulus packers operate for numerous oil and gas operators worldwide, to reinforce or definitely replace the cement in critical external casing sections, and provide the critical zonal isolation required downhole.

Saltel Expandable Steel Packers are designed to meet the requirements of the most challenging applications, such as cementless completions. Annular Zonal Isolation Packers (AZIP) provide a life-of-the-well annulus sealing.

Features/Xpandable Steel PackerXpandable steel AZIP-C 1-0Xpandable steel AZIP-C 1-1
MountingCrimpedCrimped
Valve systemLock valve closing permanently packer expansion port.
Annulus compensation valve (one side)
Lock valve closing permanently packer expansion port.
Dual Annulus compensation valve (both sides)
Sealing SystemDeformable corrosion-resistant alloy (CRA) sleeve with elastomer sealDeformable corrosion-resistant alloy (CRA) sleeve with elastomer seal
ReliabilityLife of well (Sweet and Sour environment)Life of well (Sweet and Sour environment)
PerformanceSelf energized high-pressure differential from one direction unaffected by temperature variationsSelf energized high-pressure differential from one direction unaffected by temperature variations
Max DeltaP
Compensated
Up to 3,000 psi depending on diameter and sleeve thicknessUp to 3,000 psi depending on diameter and sleeve thickness
Max DeltaP
Not Compensated
Up to 3,000 psi depending on diameter and sleeve thicknessUp to 3,000 psi depending on diameter and sleeve thickness
Max Temp.302 degF - 150 degC302 degF - 150 degC
QualificationAPI 19 OH V1API 19 OH V1