| abstract |
A low molecular weight, high melting point, crystalline, oilnsoluble additive for use in wellbore fluids is provided that isnpreferably a ground crystalline material of melting point overn80°C, preferably over 100°C which is readily soluble in producednhydrocarbons such as crude oil and lighter condensates, andnwhich exhibits a molecular weight of less than 1000, andnpreferably less than 500, and more preferably less than 300. Itsnparticle size can be adjusted to bridge efficiently acrossndifferent pore size formations and control its solubility rate. |