Well Services of Iran (Schlumberger Methods) also known as “WSI” has been providing a wide range of services in the upstream oil and gas industry in iran utilizing high quality equipment and trained personnel. Well Services of Iran (Schlumberger Methods) also known as “WSI” has been providing a wide range of services in the upstream oil and gas industry in iran utilizing high quality equipment and trained personnel. Services Well Services of Iran (schlumberger Methods) business lines are: WireLline Logging Services Drilling and Measurements Cementing,Stimulation and Coiled Tubing Well Completion and Productivity Data & Consulting Services