Contamination types, levels and their behavior within drilling wastes is determined by the local geological conditions and drilling mud design; notably lubrication fluids, weighting agents and anti-foaming agents. Such additives can contain potentially toxic elements such as aluminum and barium. Besides being contaminated, drilling wastes often have a high pH due to the addition of lime, causti...

This study aims to evaluate the effect of wheat flour as a natural and environmentally friendly material on properties water-based mud. Recently, many experiments have been conducted with various additives improve drilling fluids. The using new additive fluid was studied rheological filtration properties. In laboratory several samples mud were prepared, different concentrations from 1 wt% 7 add...

Since Dual Gradient Drilling (DGD) is a new and advanced drilling technology, currently its methods, procedures, simulations and experiments are still underdeveloped. It requires more study, research and advanced methods on DGD systems. The motivation of the paper is to study DGD systems, design good operational drilling parameters, and work on automated DGD systems to further realize safe and ...

The article considers the issue of reducing the influence of clayless mud components on the filtration parameters of the reservoir. In the composition of such solutions, calcium carbonate of various fractions is often added as a weighting and colmatizing additive. It is generally accepted that weighting bridging agents are sufficiently inert substances and their addition does not affect the rhe...

In a study of a sediment core from the US Atlantic Coastal Plain (Ocean Drilling Program Site 174X-Millville), Wright and Schal-ler (1) claim to have resolved the onset of the Paleocene/Eocene carbon isotope excursion (CIE) across 13 y. Such a rapid change would require an enormous and instantaneous release of isotopically light carbon into the ocean/atmosphere, implicating comet impact. The cl...

Now a days environmental regulation agencies become highly vocal on issues, due to that petroleum industry especially drilling companies wants all operations safe, secure, 8 within the limits set by these agencies. On basis of above aspect, could be friendly environment with usage materials i.e. fluid cement slurry during completion activities. This study incorporates investigation carried out ...

Drilling fluids can be considered complex liquids containing several desired materials. These materials (small additives) are specialty products that serve a specific need, such as controlling the rheological properties of drilling fluid and reducing corrosion for operational both oil gas wells. Additives used to resist called inhibitors. Previous research has shown polymers Carboxymethyl Cellu...