Newsroom Tesco and Schlumberger Enter into Definitive Agreement on CASING DRILLING™ Division Schlumberger Acquires GEDCOSpecialized geophysical survey design services and software added to portfolio. AAPG Student Chapters Awarded ScholarshipsStephen F. Austin State University and University of Aberdeen recognized. Slickline Joins the Digital AgeTwo-way telemetry ushers in a new era for slickline. Built on Experience, Engineered for the FutureSampling and formation testing qualified for high-temperature environments Schlumberger Announces First-Quarter 2012 ResultsFirst-Quarter 2012 earnings-per-share of $0.98.