Case Study: FlexSTONE Technology Company achieves regulatory approval for gas production with SLB's FlexSTONE cementing solution

FlexSTONE Technology Improves Cement Bond to Enable Production for Operator in North Africa

SLB worked with FlexSTONE Technology Company, a dry-gas operator in North Africa facing persistent well integrity issues after cementing polymer-based mud wells. The company struggled to achieve top of cement as designed, obtain successful pressure tests, and secure regulatory approval because poor cement bonding and sustained casing pressure were limiting production.

SLB responded by performing root cause analysis and redesigning the fluid train with CemPRIME Scrub spacer for better hole cleaning and FlexSTONE advanced flexible cement technology to reduce permeability, shrinkage, and gas channeling. SLB also optimized slurry density, used batch mixing, and added annular casing packers; the result was excellent bond logs, zero annulus pressure in the successful well, and regulatory approval to continue gas production.