When stimulating a long, heterogeneous carbonate formation, your stimulation fluid will generally flow into the most permeable section. To treat the rest of the reservoir, you need a way to divert the flow to less permeable areas. Schlumberger engineers design OpenPath Sequence* diversion stimulation services with engineered composite pills appropriate for your specific formation and completion: The L-System pill is ideal for acid fracturing treatments in openhole completions, faulted formations, and previously stimulated wells with large near-wellbore caverns. The R-System pill is most effective when used during bullheaded acid fracturing treatments in newly drilled openhole or cased-hole completions. The M-System pill is optimized for matrix stimulation treatments or low-rate acid fracturing. Its main advantage compatibility with ACTive* real-time downhole coiled tubing services, which deliver real-time downhole data for stimulation decision-making. The S-System pill is effective in matrix stimulation, scale control, and water control treatments in limited-entry completions with features such as screens, slotted liners, and existing gravel packs. You can rely on Schlumberger expertise to select the best composite pill and stimulation fluids to suit your well’s reservoir properties and completion design.