A micro-nanometer plugging anti-collapse drilling fluid and fracturing method and use thereof.

The present disclosure discloses a modified nano-silica plugging agent, a water-based drilling fluid, and a preparation method and use thereof.

The present invention is directed to compositions and methods for reducing lost circulation in drilling wells with compositions preferably comprising cross linked levan and calcium carbonate mixed with clay minerals such as kaolinite and other minerals blends or salts thereof.

Methods for using treatment fluids and additives that include xanthan gum and attapulgite. In one or more embodiments, the methods of the present disclosure include providing a treatment fluid comprising an aqueous base fluid, xanthan gum, and attapulgite; and introducing the treatment fluid into at least a portion of a subterranean formation.

The present invention is directed to a drilling fluid containing water, biodegradable fibers, and a thickener. The thickener contains a water-absorbing silicate, and the biodegradable fibers have a fiber length of 5.0 to 50 mm.

The invention relates to a composition comprising a plant-derived cellulose particulate material comprising less than 30 wt % extractable glucose; and extractable xylose in an amount of at least 3% of the amount of extractable xylose in the starting plant material, and an agent selected from the group comprising natural ionic polymers or natural non-ionic polymers; synthetic water dispersible polymers, and/or associative thickeners, and its various uses, including as a drilling fluid.

The present application discloses water-based drilling fluid systems and methods of making water-based drilling fluids systems. According to one embodiment, a drilling fluid system may include a drilling fluid and a lubricant. The lubricant may be synthesized from waste vegetable oil.

The present application discloses water-based drilling fluid system compositions and methods for making water-based drilling fluids systems. According to one embodiment, a drilling fluid system may include a drilling fluid and a lubricant. The lubricant may be synthesized from plant-based raw material oil.

The present disclosure relates to downhole fluid additives including a clay, a hydroxylated polymer, a cation, and water. The disclosure further relates to downhole fluids, including drilling fluids, spaces, cements, and proppant delivery fluids containing such as downhole fluid additive and methods of using such fluids. The downhole fluid additive may have any of a variety of functions in the downhole fluid and may confer any of a variety of properties upon it, such as salt tolerance or desired viscosities even at high downhole temperatures.

A proppant includes coating of a lignin containing phenolic resin. The proppants may be used in subterranean well formations and hydraulic fracturing operations.