# US 10,309,425 B1 · High flow capacity well fluid extraction jet pump providing through access > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,309,425 B1 - Document ID: US10309425B1 - Status: Granted - Kind: B1 - Application number: 15/239,512 - Filed: 2016-08-17 - Granted: 2019-06-04 - Earliest claimed: 2015-08-20 - Applicants: Steven P. Burgess - Inventors: Steven P. Burgess - Web page: https://patentgrep.com/patent/US10309425B1 ## CPC - F04F 5/54: Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type - E21B 43/124: {Adaptation of jet-pump systems} - F04F 5/10: displacing liquids, e.g. containing solids, or liquids and elastic fluids - F04F 5/46: Arrangements of nozzles - F04F 5/461: {Adjustable nozzles} - F04F 5/464: {with inversion of the direction of flow} - F04F: PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED {(evacuating by sorption F04B)}; SIPHONS {(conveying materials in bulk by flows of gas, liquid of foam B65G53/00)} - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS ## Abstract A hydraulically-retrievable, reversible flow operation jet pump threadably attached to a tubing string which is powered by fluid supplied through the tubing string. A pump housing, or container, of the jet pump includes a hollow cylinder with an internal diameter closely matching that of the attached tubing string. A jet pump assembly is retainably, scalably disposed within the pump housing. A jet pump reducing nozzle-mixing chamber-diffuser assembly is retainably disposed within the carrier. Power fluid pumped through the nozzle-mixing chamber-diffuser assembly conventionally draws in objective fluid in which the jet pump is immersed, and transports it out of the pump to the desired receiving station. The jet pump assembly can be oriented in either of two directions within the pump housing, for selected fluid direction flow. ## Claims ### Claim 1 A through-accessible reversible operation jet pump for attachment to a tubing string, comprising: a pump housing including a pump housing wall and a pump housing interior in said pump housing wall; at least one suction port in said pump housing wall, said at least one suction port having a suction port inlet and a suction port outlet disposed in fluid communication with said pump housing interior; at least one pump housing opening extending through said pump housing wall of said pump housing in fluid communication with said pump housing interior; and a jet pump assembly disposed in said pump housing interior, said jet pump assembly including: a proximal carrier head disposed in sealing engagement with said pump housing wall; a carrier disposed in fluid communication with said proximal carrier head; a carrier nozzle in said carrier; at least one carrier opening in said carrier and establishing fluid communication between said carrier nozzle and said suction port outlet of said at least one suction port through said pump housing interior; a distal carrier head disposed in sealing engagement with said pump housing wall and having a distal carrier head bore disposed in fluid communication with said carrier; and a pump spool having a tapered spool shaft terminating inside said distal carrier head bore of said distal carrier head, said pump spool disposed in sealing engagement with said pump housing wall between said suction port inlet and said suction port outlet of said at least one suction port; wherein said pump spool comprises a tool base disposed in fluid communication with said pump housing wall, a tapered spool body extending from said spool base and an elongated, tapered spool tip terminating said spool body, said spool tip terminating inside said distal carrier head bore of said distal carrier head; and a spool collar having a spool caller wall disposed in sealing engagement with said pump housing wall, a plurality of collar vanes connecting said spool collar wall to said snoot body of said pump spool and a plurality of fluid flow spaces between said plurality of collar vanes. ### Claim 2 (depends on 1) The through-accessible reversible operation jet pump of claim 1, wherein said jet pump assembly is adapted to be selectively removed from said pump housing interior through the tubing string as said pump housing remains attached to the tubing string. ### Claim 3 (depends on 2) The through-accessible reversible operation jet pump of claim 2, wherein said carrier of said jet pump assembly is selectively positional in a first orientation in said pump housing interior to facilitate operation of said jot pump in a first fluid flow direction operational mode and said carrier of said jet pump assembly is selectively positional in a second orientation in said pump housing interior to facilitate operation of said jet pump in a second fluid flow direction operational mode opposite said first fluid flow direction operational mode. ### Claim 4 (depends on 1) The through-accessible reversible operation jet pump of claim 1, wherein said carrier nozzle comprises a nozzle chamber and said at least one carrier opening is disposed in fluid communication with said nozzle chamber. ### Claim 5 (depends on 4) The through-accessible reversible operation jet pump of claim 4, wherein said carrier nozzle further comprises a converging nozzle bore converging from said proximal carrier head, a nozzle tip terminating said converging nozzle bore in said nozzle chamber, a straight chamber segment extending from said nozzle chamber and a diverging chamber segment diverging from said straight chamber segment to said distal carrier head. ### Claim 6 A through-accessible reversible operation jet pump for attachment to a tubing string, comprising: a pump housing including a pump housing wall and a pump housing interior in said pump housing wall; at least one suction port in said pump housing wall, said at least one suction port having a suction port inlet and a suction port outlet disposed in fluid communication with said pump housing interior; at least one pump housing opening extending through said pump housing wall of said pump housing in fluid communication with said pump housing interior; and a jet pump assembly disposed in said pump housing interior, said jet pump assembly including: a proximal carrier head disposed in sealing engagement with said pump housing wall; a carrier disposed in fluid communication with said proximal carrier head; a carrier nozzle in said carrier; at least one carrier opening in said carrier and establishing fluid communication between said carrier nozzle and said suction port outlet of said at least one suction port through said pump housing interior; a distal carrier head disposed in sealing engagement with said pump housing wall and having a distal carrier head bore disposed in fluid communication with said carrier; a pump spool having a tapered spool shaft terminating inside said distal carrier head bore of said distal carrier head, said pump spool disposed in sealing port outlet of said at least one suction port; and at least one distal seal sandwiched between said spool base of said pump spool and said pump housing wall of said pump housing and a distal seal retaining collar threadably engaging said spool base to retain said at least one distal seal in place. ### Claim 7 A through-accessible reversible operation jet pump, comprising: a tubing string having an inner tubing string diameter; a pump housing configured for attachment to said tubing string, said pump housing including a pump housing wall and a pump housing interior in said pump housing wall, said pump housing interior having an inner pump housing interior diameter matching said inner tubing string diameter of said tubing string; at least one suction port in said pump housing wall, said at least one suction port having a suction port inlet and a suction port outlet disposed in fluid communication with said pump housing interior; the at least one suction port forms at least one undulation in an exterior surface or outer diameter of the pump housing wall of the pump housing to maximize cross-sectional area for flow of fluid within the pump housing interior; at least one pump housing opening extending through said pump housing wall of said pump housing in fluid communication with said pump housing interior; and a jet pump assembly disposed in said pump housing interior, said jet pump assembly including: a proximal carrier head disposed in sealing engagement with said pump housing wall; a carrier disposed in fluid communication with said proximal carrier head; a carrier nozzle in said carrier; at least one carrier opening in said carrier and establishing fluid communication between said carrier nozzle and said suction port outlet of said at least one suction port through said pump housing interior; a distal carrier head disposed in sealing engagement with said pump housing wall and having a distal carrier head bore disposed in fluid communication with said carrier; and a pump spool having a tapered spool shaft terminating inside said distal carrier head bore of said distal carrier head, said pump spool disposed in sealing engagement with said pump housing wall between said suction port inlet and said suction port outlet of said at least one suction port. ### Claim 8 (depends on 7) The through-accessible reversible operation jet pump of claim 7, wherein said carrier nozzle comprises a nozzle chamber and said at least one carrier opening is disposed in fluid communication with said nozzle chamber. ### Claim 9 (depends on 8) The through-accessible reversible operation jet pump of claim 8, wherein said carrier nozzle further comprises a converging nozzle bore converging from said proximal carrier head, a nozzle tip terminating said converging nozzle bore in said nozzle chamber, a straight chamber segment extending from said nozzle chamber and a diverging chamber segment diverging from said straight chamber segment to said distal carrier head. ### Claim 10 (depends on 7) The through-accessible reversible operation jet pump of claim 7, wherein said jet pump assembly is adapted to be selectively removed from said pump housing interior through said tubing string as said pump housing remains attached to said tubing string. ### Claim 11 (depends on 10) The through-accessible reversible operation jet pump of claim 10, wherein said carrier of said jet pump assembly is selectively positional in a first orientation in said pump housing interior to facilitate operation of said jet pump in a first fluid flow direction operational mode and said carrier of said jet pump assembly is selectively positional in a second orientation in said pump housing interior to facilitate operation of said jet pump in a second fluid flow direction operational mode opposite said first fluid flow direction operational mode. ### Claim 12 (depends on 7) The through-accessible reversible operation jet pump of claim 7, wherein said pump spool comprises a spool base disposed in fluid communication with said pump housing wall, a tapered spool body extending from said spool base and an elongated, tapered spool tip terminating said spool body, said spool tip terminating inside said distal carrier head bore or said distal carrier head. ### Claim 13 (depends on 12) The through-accessible reversible operation jet pump of claim 12, further comprising a spool collar having a spool collar wall disposed in sealing engagement with said pump housing wall, a plurality of collar vanes connecting said spool collar wall to said spool body of said pump spool and a plurality of fluid flow spaces between said plurality of collar vanes. ### Claim 14 (depends on 12) The through-accessible reversible operation jet pump of claim 12, further comprising at least one distal seal sandwiched between said spool base of said pump spool and said pump housing wall of said pump housing and a distal seal retaining collar threadably engaging said spool base to retain said at least one distal seal in place. ### Claim 15 A through-accessible reversible operation jet pump, comprising: a tubing string having an inner tubing string diameter; a pump housing configured for attachment to said tubing string, said pump housing including a pump housing wall and a pump housing interior in said pump housing wall, said pump housing interior having an inner pump housing interior diameter matching said inner tubing string diameter of said tubing string; a plurality of suction ports in said pump housing wall, said plurality of suction ports each having a suction port inlet and a suction port outlet disposed in fluid communication with said pump housing interior; the plurality of suction ports form a plurality of undulations in an exterior surface or outer diameter of the pump housing wall of the pump housing to maximize cross-sectional area for flow of fluid within the pump housing interior; a plurality of pump housing openings extending through said pump housing wall of said pump housing in fluid communication with said pump housing interior; and a jet pump assembly disposed in said pump housing interior, said jet pump assembly including: a proximal carrier head disposed in sealing engagement with said pump housing wall; a carrier disposed in fluid communication with said proximal carrier head, said carrier selectively positional in a first orientation in said pump housing interior to facilitate operation of said jet pump in a first fluid flow direction operational mode and selectively positional in a second orientation in said pump housing interior to facilitate operation of said jet pump in a second fluid flow direction operational mode opposite said first fluid flow direction operational mode; a carrier nozzle in said carrier; a plurality of carrier openings in said carrier and establishing fluid communication between said carrier nozzle and said suction port outlet of said plurality suction ports through said pump housing interior; a distal carrier head disposed in sealing engagement with said pump housing wall and having a distal carrier head bore disposed in fluid communication with said carrier; a pump spool having a tapered spool shaft terminating inside said distal carrier head bore of said distal carrier head, said pump spool disposed in sealing engagement with said pump housing wall between said suction port inlet and said suction port outlet of each of said plurality of suction ports, said pump spool including a spool base disposed in fluid communication with said pump housing wall, a tapered spool body extending from said spool base and an elongated, tapered spool tip terminating said spool body, said spool tip terminating inside said distal carrier head bore of said distal carrier head; and a spool collar having a spool collar wall disposed in sealing engagement with said pump housing wall, a plurality of collar vanes connecting said spool collar wall to said spool body of said pump spool and a plurality of fluid flow spaces between said plurality of collar vanes. ### Claim 16 (depends on 15) The through-accessible reversible operation jet pump of claim 15, further comprising at least one distal seal sandwiched between said spool base of said pump spool and said pump housing wall of said pump housing and a distal seal retaining collar threadably engaging said spool base to retain said at least one distal seal in place. ### Claim 17 (depends on 15) The through-accessible reversible operation jet pump of claim 15, wherein said carrier nozzle comprises a nozzle chamber and said plurality of carrier openings are disposed in fluid communication with said nozzle chamber. ### Claim 18 (depends on 17) The through-accessible reversible operation jet pump of claim 17, wherein said carrier nozzle further comprises a converging nozzle bore converging from said proximal carrier head, a nozzle tip terminating said converging nozzle bore in said nozzle chamber, a straight chamber segment extending from said nozzle chamber and a diverging chamber segment diverging from said straight chamber segment to said distal carrier head.