Abstract: Apparatus (10) permits injection of solid well treatment pellets into a producing well (25) having a positive well pressure. The apparatus (10) includes a water storage tank (12) connected to the input of a high pressure pump (14). The pump (14) generates a pressurized flow of water at a pressure greater than well pressure through a conduit (24) and/or through a container (30) holding the pellets to be injected. The pellets are entrained within the pressurized flow of water for well injection.

Abstract: Improved anti-corrosion systems are provided for use with hydrocarbon recovery, treatment and distribution equipment, in order to inhibit corrosion on the metal surfaces thereof. The systems include an epoxy resin, a curing agent for the resin, and a surfactant, which is the reaction product of an alkyl benzene sulfonic acid at least partially neutralized of from about 6-11 with an ammonia or amine neutralizing agent. The systems provide improved anti-corrosion protection in the case of metal surfaces not continually wetted with liquid hydrocarbons, such as crude oil.

Abstract: Improved anti-corrosion systems are provided for use with hydrocarbon recovery, treatment and distribution equipment, in order to inhibit corrosion on the metal surfaces thereof. The systems include an epoxy resin, a curing agent for the resin, and a surfactant, which is the reaction product of an alkyl benzene sulfonic acid at least partially neutralized of from about 6-11 with an ammonia or amine neutralizing agent. The systems provide improved anti-corrosion protection in the case of metal surfaces not continually wetted with liquid hydrocarbons, such as crude oil.