(Yield Point (YP Is resistance of initial flow of fluid or the stress required in order to move the fluid the Yield Point (YP) is the attractive force among colloidal particles in drilling mud The YP indicates the ability of the drilling mud to carry cuttings to surface at dynamic condition Moreover, frictional pressure loss is directly related to the YP . If you have higher YP, you will have high pressure loss while the drilling mud is being circulated A unit of YP is lb/100 ft2 يعنى هى قدره سائل الحفر على رفع الرواسب ( cuttings) الى السطح فى حاله وجود عمليه ( circulation) للبئر يعنى فى حاله مايكون سائل الحفر ( mud) فى حاله ديناميكيه او حاله متحركه او هى المقاومه الاوليه لحركه السائل والضغط المطلوب او الجهد المطلوب لتحريك السائل من حالته الساكنه وهى المسئوله عن القوه الجاذبه فى السائل فى حالته الغرويه In oil-based mud, the causes of increasing in YP are listed below Drill solid – the more drill solid you have, the more YP will be
