| abstract |
An environmentally compatible high density drilling, blow-out control fluid, or cement composition is provided wherein densities between twenty-four (24) and forty (40) pounds per gallon can be achieved. Such preferred fluid is aqueous based, uses a non-toxic gelling agent such as fine iron oxide powder, a coarser first weighting material such as fine iron powder, and a second still coarser weighting material such as iron shot, steel shot or mixtures thereof. |