Ven-Pel I™ ™ is used in water-base drilling fluids to prevent or overcome lost circulation. It is ideally suited for use in porous gravel, fractured formations, and vugular cavernous strata. Ven-Pel I™ ™ is a densified, fibrous, lost circulation material designed to expand up to five times or more its volume when brought into contact with water.
Even without expanding, the controlled pellet size will provide initial high water loss bridging properties in large void spaces. However, once in a void space and contacted with water, the pellets will expand similar to clay. The key difference, however, is that the pellets will produce a fibrous end product. In addition, the ultimate expansion and disintegration of the pellets provides a secondary plugging mechanism the development of a wide particle size range of many small, pliable fibers. This results in the formation of a tight mat-like seal.
Ven-Pel I™ ™ is a selected and blended mixture of both long and short organic fibers designed to provide specific end properties such as chemical composition, particle size, distribution, density, disintegration rates, reactivity, compatibility, etc. Both chemical and physical properties can be widely varied to meet specific problem requirements.
Ven-Pel I™ ™ is recommended as a unique approach to preventing or overcoming severe lost circulation encountered when drilling with water base drilling fluids. Ven-Pel I™ ™ is designed to disintegrate and form fibrous particles when brought into contact with water. Concentrations of pretreatment can vary between 5 and 40 lb/bbl. Concentrated slugs can be prepared in even higher concentrations if desired.Ven-Pel I™ ™ will act in the same way as conventional, nondensified, fibrous lost circulation material when added to a water base drilling fluid.
Ven Pel I PDS