Lost Circulation Additives (LCAs) are vital in oil and gas cementing operations, ensuring wellbore stability and mitigating the risk of formation breakdown. Among the leading LCA solutions are Safe-Shield Spacer and Safe-Shield LC4k, both offering unique advantages for various challenging drilling environments.
Safe-Shield Spacer is a wellbore guard spacer specifically designed to enable operators to perform cement jobs with higher equivalent circulating densities (ECDs) without increasing the risk of formation breakdown. This spacer is particularly beneficial for fragile, unconsolidated, and low fracture gradient formations. It is also highly effective in high-permeability formations and in wells where pre-job assessments indicate that the ECD is near or above the fracture gradient.
One of the key advantages of Safe-Shield Spacer is its ability to perform efficiently in wells with a narrow margin between fracture gradient and pore pressure gradient. This ensures the integrity of the formation during cementing operations, making it an ideal choice for challenging drilling conditions.
Safe-Shield LC4k is a spacer additive designed for lost circulation remediation. It is specifically formulated to address partial to total lost circulation, effectively sealing fractures ranging from 10 to 4,000 microns. Safe-Shield LC4k is used in high-permeability formations, as well as unconsolidated and fractured formations, particularly when losses are observed during the drilling phase.
When added to Safe-Shield Spacer systems, Safe-Shield LC4k enhances the ability to remediate against moderate, complete, and total losses. This combination ensures that the cementing job is successful even in the most challenging conditions, providing a robust solution to lost circulation issues.
The use of LCAs like Safe-Shield Spacer and Safe-Shield LC4k offers numerous benefits, including improved wellbore stability, enhanced formation integrity, and effective control of lost circulation. These products are crucial for maintaining the integrity of the well during cementing operations, particularly in formations with narrow margins between fracture gradient and pore pressure gradient.
The integration of Safe-Shield Spacer and Safe-Shield LC4k in oil and gas cementing operations represents a significant advancement in LCA technology. Their unique properties and proven effectiveness make them invaluable assets in enhancing the efficiency and success of cementing jobs, ensuring well integrity in various challenging environments.
Product and customer insights
Despite numerous cleanings, the productivity of the Reverse Osmosis plant would not recover from severe membrane fouling. The membrane autopsy revealed that the ferric hydroxide was seeding
silica polymerization and that even while the ferric hydroxide was removed, the silica scaling was continuing to grow.
The plant was experiencing weekly shutdowns for fiber clean up (~ 3 kg bags of matted slurry is cleaned per week). The shut downs were costly as they reduce plant availability for production.
The International Maritime Organisation (IMO) regulation, known as IMO 2020 was the the largest change in regulation relating to marine fuels impacting 75% of the fuel used by the shipping industry.
Keeping drilling costs low using Redi-Guard™ High Performance, an ecologically friendly drilling fluid technology with revolutionary rheological and shale encapsulation properties
AWC A-110 effectively inhibited scale at a dosage of 3.5 ppm and an operating pH of 6.9. This increase in operating pH reduced the district’s annual acid consumption by ~$350K per year based on their current production.
Research indicates that Sea Buckthorn may be able to strengthen the immune system. One in vitro study focused on the possible immunomodulatory properties of Sea Buckthorn.
MCI® -2020 V/O and ChemMaster’s Colorsil were chosen to repair and protect the walls based on their 20 year warranties and the fact that together they could fulfill the other specified repair design requirements.
The East Hokkaido region is known to have the highest volume of potato product in Japan. Unfortunately, a potato farmer in the area was experiencing a high rate of potato scab infection in his agricultural field.
A S Harrison & Co is committed to providing the highest level of customer service. Please drop us a line and we will get back to you soon.
