The invention relates to a composition comprising an HPHT fluid loss control aid, stable at elevated temperatures and which also acts as an excellent shale stabilizer, bore hold lubricant, sealant for depleted sand, and wall cake conditioner. The HPHT fluid loss control aid broadly comprises a Gilsonite (asphaltite, asfaltit,Gilsonita,uintaite, natural asphalt, natural bitumen) which also contains a surfactant such as a nonionic surfactant.
date_rangeJul 06' 2018 / China
date_rangeJun 02' 2018 / Russia
date_rangeMay 28' 2018 / Russia
date_rangeMay 23' 2018 / Russia