Micro-annular channeling or formation influxes might happen as the result of a bad-quality primary cement bond. Despite several attempts to bleed off the annular pressure, this pressure remains subject to rebuild. This is sustained casing pressure.
In extreme cases, poor-quality cement can allow gas or oil to migrate to the surface, leading to a blowout. Cementing issues are more common than one might want to believe.
OVERCOME BRADENHEAD PRESSURE IN BOTH CASED AND OPEN HOLE
SALTEL XPANDABLE STEEL PACKER TECHNOLOGY PREVENTS SUSTAINED CASING PRESSURE
SUSTAINED CASING PRESSURE (SCP) IS A COMMON ISSUE IN THE OIL AND GAS INDUSTRY. IT REFERS TO ANY PRESSURE IN THE CASING OR THE ANNULUS THAT REMAINS AFTER A BLEED-OFF AND CAN REBUILD OVER TIME. THIS CAN HAVE SERIOUS CONSEQUENCES IF LEFT UNADDRESSED, AS SCP CAN CAUSE OTHER TYPES OF PRESSURE BUILDUP AND LEAD TO GAS LEAKS AND FORMATION INFLUXES. SCP IS OFTEN CAUSED BY POOR CEMENT BONDING BETWEEN THE CASING AND THE FORMATION, WHICH CAN RESULT IN HIGH POROSITY PERMEABILITY OR MICROFRACTURES. THIS CAN BE A MAJOR SAFETY CONCERN, AND ALL SAFETY REGULATORS REQUIRE SCP ELIMINATION TO ENSURE THE SAFETY OF PERSONNEL AND THE ENVIRONMENT.
Fortunately, the Saltel Xpandable steel packer technology provides a solution to reinforce or replace bad cement bonds. This technology acts as an additional barrier in the annulus to isolate sustained casing pressure and prevent it from causing further damage. By utilizing this technology, companies can save time and money on remediation efforts while ensuring the safety of their operations. In conclusion, sustained casing pressure is a significant concern in the oil and gas industry, but it can be effectively addressed with the right tools and techniques. The Saltel Xpandable steel packer technology offers a reliable and cost-effective solution to reinforce or replace bad cement bonds, helping companies to ensure the safety of their personnel and the environment while maintaining their operations.