Ven-BHC™ is an inorganic, synthetic gel-strength modifier and shale stabilizer designed for waterbased drilling, milling and completion fluids. Ven-BHC™ is a proprietary Poly Hydroxy Silicate technology. Ven-BHC™ provides borehole stability and superior hole cleaning for miling of casing and drilling highly deviated or horizontal sections as well as straight hole drilling applications. This fluid is especially effective when drilling unconsolidated, unstable, stressed or faulted formations.
The Ven-BHC™ drilling fluid system is capable of remarkable solids suspension, yet exibits extreme shear thinning flow characteristics. The result is a low-solids fluid system that drills like water, yet forms, almost instantly, a unique gel structiure that carries and suspends cuttings in ‘near perfect transport’ while providing superior shale stabilizing characteristics.
Environmentally safe fluid system Provides excellent shale stability Achieve higher ROP, reduced drilling days Has few system components and is easy to use Works with Bentonite, Attapulgite and Sepiolite Can be used with either Premium ‘un-treated’ bentonite or Peptized ‘treated’ bentonite Provides high YP with low funnel viscosity Has high ‘low end’ rheological properties Optimizes hole cleaning capabilities zero ‘slip’ velocity excellent suspension characteristics Virtually zero shear stress at borehole Maintains filtration control in the presence of contaminants Minimize torque and drag Minimal dynamic fluid loss Solids and fluid are prevented from entering production zones (due to the bridging agents particle size distribution assuring a thin, low permeability filter cake) Requires no special or sophisticated rig equipment, just good solids control
Treat water with soda ash to reduce hardness below 60 ppm (60 mg/l) to improve yield of bentonite. Pre-hydrate Premium (untreated) bentonite for at least one hour before adding caustic soda, mix Peptized (treated) bentonite for at least 15 minutes.
Add pre-hydrated Premium (untreated) bentonite or Peptized (treated) bentonite and Ven-BHC™ when necessary to increase viscosity. Dilute with water when necessary to decrease viscosity. Maintain pH betwen 9.5 – 11.5 (to enhance bentonite hydration).
Ven BHC Book
Ven BHC PDS