A treatment fluid comprises: a liquid fluorinated compound; and at least one additive, wherein the additive: (A) comprises carbon and at least one fluorine functional group; and (B) is soluble or dispersible in the liquid fluorinated compound. A method of treating a portion of a well comprises: forming the treatment fluid; and introducing the treatment fluid into the well.

A variety of methods, compositions, and systems are disclosed, including, a method comprising: introducing a treatment fluid into a wellbore penetrating a subterranean formation wherein the treatment fluid comprises: a base fluid; and multi-grade diverting particulates, wherein the multi-grade diverting particulates comprise a degradable polymer, wherein the degradable polymer comprises a first portion of the degradable polymer and a second portion of the degradable polymer of different grades, wherein the multi-grade diverting particulate at least partially plugs a zone in the subterranean formation; and diverting at least a portion of the treatment fluid and/or a subsequently introduced fluid away from the zone.

A vulcanized rubber and date tree based lost circulation material (LCM) is provided. The vulcanized rubber and date tree based LCM includes vulcanized rubber particles, date tree seed particles produced from date tree seeds, and date tree fibers produced from date tree waste. The LCM may include vulcanized rubber particles in the range of 20 pounds-per-barrel (ppb) to 40 ppb in the drilling fluid, date tree seed particles in the range of 50 ppb to 70 ppb in the drilling fluid, and date tree fibers in the range of 10 ppb to 40 ppb in a drilling fluid, including a first size of fibers in the range of 5 ppb to 20 ppb, and a second size of fibers in the range of 5 ppb to 20 ppb. Methods of lost circulation control and manufacture of the vulcanized rubber and date tree based LCM are also provided.

A degradable composition including magnesium-based materials doped with metals, metalloids, and/or compounds, where the composition has a hardness in excess of 80 BHN, and methods of using the same (for example, as a constituent of a treatment fluid of a subterranean formation) are described. The degradable composition may be a shaped composition that degrades in environments typically encountered downhole, such as oilfield environments/conditions and/or fluids. Compositions including magnesium-based materials and various manufacturing processes to produce a composition including the magnesium-based materials in a desired shape are also described.

A degradable composition including magnesium-based materials doped with metals, metalloids, and/or compounds, where the composition has a hardness in excess of 80 BHN, and methods of using the same (for example, as a constituent of a treatment fluid of a subterranean formation) are described. The degradable composition may be a shaped composition that degrades in environments typically encountered downhole, such as oilfield environments/conditions and/or fluids. Compositions including magnesium-based materials and various manufacturing processes to produce a composition including the magnesium-based materials in a desired shape are also described.

The instant invention relates to a process for the encapsulation of a non-amine hydrophilic compound C, comprising the steps of: (E1) providing a reverse emulsion containing: an oil phase (O), comprising a curable mixture of isocyanate and polyalkyldiene hydroxylated or polyol dispersed in said oil phase, drops of an aqueous phase W.sup.1, containing: said non-amine hydrophilic compound C; and at least 5% by weight of a compound C carrying more than 2 amine groups; (E2) pouring the reverse emulsion of step (E1) in a second water phase W.sup.2 to make a multiple emulsion water/oil/water; and, then, (E3) curing into polyurethane all or part of the curable mixture contained in the oil phase.

The instant invention relates to a process for the encapsulation of a non-amine hydrophilic compound C, comprising the steps of: (E1) providing a reverse emulsion containing: an oil phase (O), comprising a curable mixture of isocyanate and polyalkyldiene hydroxylated or polyol dispersed in said oil phase, drops of an aqueous phase W.sup.1, containing: said non-amine hydrophilic compound C; and at least 5% by weight of a compound C carrying more than 2 amine groups; (E2) pouring the reverse emulsion of step (E1) in a second water phase W.sup.2 to make a multiple emulsion water/oil/water; and, then, (E3) curing into polyurethane all or part of the curable mixture contained in the oil phase.

A wellbore fluid may include a base fluid and milled polymeric fibers, wherein the base fluid is an oil-based fluid or an aqueous-based fluid, and wherein the milled polymeric fibers may have a length distribution in which the lowest point in the length distribution is up to about 50% of the average fiber length.

Modified Drilling fluid compositions and methods for using drilling fluid compositions are provided with enhanced loss control properties where the modified drilling fluid may include a carrier fluid, one or more drilling fluid additives, and a loss control material blend. The loss control material blend may include a particle component of sized particulate comprising a plurality of a mixture of untreated date seed particles and a fibrous component comprising a mixture of hard date leaflet fibers and soft date tree fibers prepared from date tree waste materials. Methods to control lost circulation in a lost circulation zone in a wellbore may include introducing a modified drilling fluid into the wellbore such that the modified drilling fluid contacts the lost circulation zone.

Modified Drilling fluid compositions and methods for using drilling fluid compositions are provided with enhanced loss control properties where the modified drilling fluid may include a carrier fluid, one or more drilling fluid additives, and a loss control material blend. The loss control material blend may include a particle component of sized particulate comprising a plurality of a mixture of untreated date seed particles and a fibrous component comprising a mixture of hard date leaflet fibers and soft date tree fibers prepared from date tree waste materials. Methods to control lost circulation in a lost circulation zone in a wellbore may include introducing a modified drilling fluid into the wellbore such that the modified drilling fluid contacts the lost circulation zone.