Abstract: A method for preparing a rubber for an elastomer of a flexible joint, includes: weighing hydrogenated nitrile raw rubber, a silica reinforcing agent, aramid fiber pulp, carbon black, liquid nitrile rubber, zinc oxide, stearic acid, an antioxidant, and a peroxide crosslinking agent; plasticating the hydrogenated nitrile raw rubber in a first internal mixer at 125-135° C., collecting a resulting product and cooling, to yield a plasticized rubber; preheating the liquid nitrile rubber; adding the plasticized rubber to a second internal mixer, further adding the aramid fiber pulp, the zinc oxide, the stearic acid, and the antioxidant to the second internal mixer for first mixing; adding the carbon black to the second internal mixer for second mixing; adding the silica reinforcing agent and the preheated liquid nitrile rubber to the second internal mixer for third mixing; and collecting a discharged product when a temperature of the second internal mixer is 140° C.

Abstract: An array substrate of a display device includes a pixel electrode layer on a substrate, which includes active pixel electrodes in an active display region; outermost active pixel electrodes include a first active pixel electrode including a first pixel electrode edge and a second pixel electrode edge; in a first direction, the first pixel electrode edge is between the second pixel electrode edge and a frame region. One of the array substrate and an opposite substrate of the display device includes a common electrode layer including a first extended common electrode which includes a first extended portion extending beyond the first active pixel electrode; a first extended portion edge of the first extended portion and a first substrate edge of the substrate respectively extend in a second direction; in the first direction, the first extended portion edge is located between the first substrate edge and the first pixel electrode edge.

Abstract: A downhole tool suitable for use in a wellbore that includes a wedge mandrel having a distal end; a proximate end; an outer surface; and a flowbore. The tool includes a fingered member disposed around the wedge mandrel. The tool includes a ball seat insert disposed in the flowbore, as well as a support platform disposed in the flowbore.

Abstract: A downhole tool suitable for use in a wellbore, the tool comprising a hybrid sleeve in the form of a mandrel sleeve; and a sleeve insert disposed within the mandrel sleeve. The tool further includes a first slip disposed about the mandrel sleeve; and a second slip disposed about the mandrel sleeve and proximate to a conical surface. There is a lower sleeve proximate to the second slip. At least a portion of the sleeve insert is radially laterally proximate to a sealing element disposed around the mandrel.

Abstract: A downhole tool suitable for use in a wellbore, the tool having a mandrel configured with a mandrel end having a failure point defined by an inner groove and a failure point wall thickness. The downhole tool also has a first slip disposed about the mandrel; a second slip disposed about the mandrel; and a lower sleeve disposed about the mandrel proximate to the second slip. The lower sleeve is engaged with the mandrel.

Abstract: A downhole tool suitable for use in a wellbore that includes a wedge mandrel having a distal end; a proximate end; an outer surface; and a flowbore. The tool includes a fingered member disposed around the wedge mandrel. The tool includes a ball seat insert disposed in the flowbore, as well as a support platform disposed in the flowbore.

Abstract: A downhole tool suitable for use in a wellbore, the tool having a mandrel made of a reactive metallic material. The mandrel further includes a mandrel end having a failure point defined by an inner groove and a failure point wall thickness may be in the range of about 0.03 inches to about 0.1 inches. The downhole tool also has a first slip disposed about the mandrel; a second slip disposed about the mandrel; and a lower sleeve disposed about the mandrel proximate to the second slip. The lower sleeve is engaged with the mandrel.

Abstract: A downhole tool suitable for use in a wellbore that includes a wedge mandrel having a distal end; a proximate end; an outer surface; and a flowbore extending through the wedge mandrel from the proximate end to the distal end. The tool includes a fingered member disposed around the wedge mandrel. The tool includes a ball seat insert made of a reactive metal-based material, the ball seat insert disposed in the flowbore and engaged with a first set of threads. The tool includes a support platform disposed in the flowbore and engaged with a second set of threads.

Abstract: A catalyst, including: 0.1-6.0 wt. % of SiO2; 8.0-20.0 wt. % of MoO3; 74.8-91.89 wt. % of Al2O3; and the balance is P2O5 and/or B2O3. A method of preparing the catalyst includes: dissolving ammonium molybdate in water or ammonia water, followed by addition of a silicon precursor, to yield a first mixed solution; stirring and adding an acid to the first mixed solution to yield a second mixed solution; and adding Al2O3 to the second mixed solution, and drying and calcining the resulting product.

Abstract: A downhole tool suitable for use in a wellbore, the tool having a mandrel made of a reactive metallic material. The mandrel further includes a mandrel end having a failure point defined by an inner groove and a failure point wall thickness may be in the range of about 0.03 inches to about 0.1 inches. The downhole tool also has a first slip disposed about the mandrel; a second slip disposed about the mandrel; and a lower sleeve disposed about the mandrel proximate to the second slip. The lower sleeve is engaged with the mandrel.

Abstract: A downhole tool for use in a wellbore having a mandrel, a bearing plate, a composite slip, and a metal slip. The metal slip has a metal slip body having a one-piece configuration, an outer metal slip surface, an inner metal slip surface, and a plurality of metal slip grooves disposed therein. At least one of metal slip groove forms a lateral opening in the metal slip body. The metal slip is made of a reactive metal-based material.

Abstract: A downhole tool suitable for use in a wellbore that includes a wedge mandrel having a distal end; a proximate end; an outer surface; and a flowbore extending through the wedge mandrel from the proximate end to the distal end. The tool includes a fingered member disposed around the wedge mandrel. The tool includes a ball seat insert made of a reactive metal-based material, the ball seat insert disposed in the flowbore and engaged with a first set of threads. The tool includes a support platform disposed in the flowbore and engaged with a second set of threads.

Abstract: Embodiments of the disclosure pertain to a composition of matter having a matrix, a thickener, a strengthener, and a soluble medium. The matrix may be about 100 parts by weight of a low viscosity cycloaliphatic epoxy resin with an anhydride curing agent. The thickener may be about 10-20 parts by weight of an additive comprising a clay. The strengthener may be about 5-10 parts by weight of a glass. The soluble medium may be about 20-30 parts by weight of a water-soluble fiber.

Abstract: A downhole tool suitable for use in a wellbore, the tool comprising a hybrid sleeve in the form of a mandrel sleeve; and a sleeve insert disposed within the mandrel sleeve. The tool further includes a first slip disposed about the mandrel sleeve; and a second slip disposed about the mandrel sleeve and proximate to a conical surface. There is a lower sleeve proximate to the second slip.