Patent ID: 11952995
Assignee: I-JACK TECHNOLOGIES INCORPORATED
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  E | IPC E  F

Claim 0:
1. A multi-phase fluid pump system operable for use in an oil and gas well system, said system comprising:
a driving fluid cylinder comprising a driving fluid chamber with a varying volume that is adapted for receiving therein, containing and expelling therefrom, a driving fluid, and comprising a driving fluid piston movable within said driving fluid cylinder to vary the volume of the driving fluid chamber;
a fluid pump cylinder comprising a fluid pump chamber with a varying volume that is adapted for receiving therein, containing and expelling therefrom, a multi-phase fluid the oil to gas ratio of which varies over time during operation, and further comprising a fluid pump piston movable within said fluid pump cylinder to vary the volume of the fluid pump chamber, said fluid pump piston operable to be driven by said driving fluid piston to pressurize a quantity of fluid located within said fluid pump chamber, said pump system being operable for communication of a supply of multi-phase fluid from an oil and gas well to said fluid pump chamber, the oil to gas ratio of which varies over time during operation;
a buffer chamber located adjacent to said fluid pump chamber, said buffer chamber being sealed by one or more seals from said fluid pump chamber, and in operation of said pump system, said buffer chamber not receiving fluid from said oil and gas well;
said buffer chamber providing a chamber that inhibits movement of at least one non-driving fluid component accompanying the multi-phase fluid supplied to said fluid pump chamber, from being communicated from said fluid pump chamber into said driving fluid chamber, when in operation fluid is located within said fluid pump chamber and is pressurized by said fluid pump piston;
a casing assembly located between said buffer chamber and said fluid pump chamber and wherein said one or more seals are located at least partially within said casing assembly, said one or more seals at least partially within said casing assembly being operable to inhibit fluid from migrating from said fluid pump chamber into said buffer chamber;, wherein said one or more seals at least partially within said casing assembly comprises a pump rod seal operable to seal said piston rod with a sealing gland disposed against an inner wall surface of said driving fluid cylinder, and further comprising a pump rod seal spring operable to exert force upon a pump gland follower, said pump gland follower in turn being operable to exert a sealing force on said pump rod seal.