A spray rig for lining an interior surface of a pipe with a material. The spray rig includes a base, a motor, and a spray head. The spray head includes a mating component, a mixing chamber, a feed tube, an agitator, and a spray deflector. The mating component removably couples the spray head to the motor. The mixing chamber extends from the mating component and includes a plurality of slots. The feed tube extends from the mixing chamber and is configured to deliver the material to the mixing chamber. The motor is operable to rotate the agitator about an agitator axis to mix the material and to direct the material through the plurality of slots. The spray deflector is coupled to the agitator for rotation with the agitator and is configured to redirect the material from the mixing chamber and onto the interior surface of the pipe.

The disclosure pertains to methods and systems for converting inactive chemicals into active chemicals in-situ for treating oil and gas pipelines, other industrial systems, or sanitizing surfaces. A method of treating an oil and gas pipeline is disclosed. The method may include feeding an inactive additive through a first conduit and into a second conduit, wherein the second conduit is in fluid communication with the first conduit and the oil and gas pipeline. The method also includes converting the inactive additive into an active additive within the second conduit and introducing the active additive into the oil and gas pipeline.

A spinner apparatus for applying lining material to the interior of a pipe, the spinner apparatus having a cylindrical material accelerator coaxially positioned about a distribution manifold, the distribution manifold having a plurality of equally spaced, radially oriented slots extending from an axial chamber that receives lining material, wherein lining material is extruded through the slots onto the interior of the material accelerator and slung onto the pipe interior in an annular pattern. Movement of the spinner apparatus along the pipe produces a tubular lining member.

Embodiments, described herein relate generally to devices, systems, and methods for producing lubricious surfaces with enhanced durability and which increase the ease of communication of viscous liquids across the same. The system can include a liquid-encapsulated surface including a substrate, a member coupled to the substrate, and an encapsulating liquid disposed on a surface of the member. In some embodiments, the surface of the member can have a chemistry such that the encapsulating liquid preferentially wets the surface and maintains lubricity in the presence of a contacting phase. In some embodiments, the encapsulating liquid can be substantially immiscible with the contacting phase, and/or can have a thickness of less than about 200 microns and/or can have a receding contact angle of less than 20 degrees in the presence of the contacting phase. In some embodiments, a liquid delivery mechanism can be configured to transfer the encapsulating liquid to the member.

A new system has a plurality of modular segments flexibly attached to one other and a source of electrical power and plating and coating solutions at the rear of the plurality of modular segments. The plurality of modular segments include a drive stage configured to push the plurality of modular segments along a surface, a plating stage configured to apply the plating solution to the surface under a pre-set operating current density to deposit metal or metal alloy onto the surface, a surface treatment application stage configured to apply the coating solution to the surface, and a curing stage configured to cure the coating solution to form a final coating on the surface that is resistant to corrosion, chemical attacks and chemical buildup.

A method includes spraying a coating on to an engine bore surface, honing the coated surface to create a honed surface region, and cleaning the honed surface region to remove material from the surface pores. The honed surface region includes a plurality of surface pores and upper, middle, and lower regions. Cleaning the honed surface region produces upper, middle, and lower region surface porosities, with the middle region porosity being greater than at least one of the upper and lower porosities.

A method includes spraying a coating on to an engine bore surface, honing the coated surface to create a honed surface region, and cleaning the honed surface region to remove material from the surface pores. The honed surface region includes a plurality of surface pores and upper, middle, and lower regions. Cleaning the honed surface region produces upper, middle, and lower region surface porosities, with the middle region porosity being greater than at least one of the upper and lower porosities.

Method for the preparation of a catalysed monolithic body or a catalysed particulate filter by capillary suction of sol-solution containing catalytically active material and metal oxide catalyst carriers or precursors thereof into pores of monolithic substrate.

A method for coating a pipe involves applying a coating material of cellular structured extruded thermoplastic material to the pipe and enclosing it on the outside by an outer covering layer of compact plastic. In an extrusion head, the annular opening for supplying coating material can be adjusted to a desired temperature by a region having coolant channels separated from the annular opening by an annular heat exchange surface. Before being applied to the pipe, the flowable coating material is guided along the heat exchange surface and cooled to a temperature just above the solidification temperature thereof. After the coating material leaves the annular opening, the coating material expands in a controlled manner, widening the outer covering layer depending on the adjusted temperature of the coating material, until the coating material begins to solidify. The outer covering layer surface condition can correspond to or be different from the pipe.

Disclosed is a method for reducing friction in a radial drilling application. The method involves coating the interior of a deflector shoe with at least one lubricant. Lubrication of the deflector shoe can be accomplished by applying a dry lubricant to the interior of the deflector shoe, allowing the dry lubricant to harden, and applying a wet lubricant over the hardened dry lubricant. The interior surface of the deflector shoe may be roughened prior to application of the lubricant. The method can further include coating a hose and/or a jet nozzle, and passing the hose and/or jet nozzle through the coated interior of the deflector shoe. The method can further include coating components of a milling cutter, and passing the components of the milling cutter through the coated interior of the deflector shoe. An apparatus for reducing friction in a radial drilling application is also disclosed.