# US 2017/0284178 A1 · Artificial lift system and an associated method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0284178 A1 - Document ID: US20170284178A1 - Status: Published application - Kind: A1 - Application number: 15/084,519 - Filed: 2016-03-30 - Published: 2017-10-05 - Earliest claimed: 2016-03-30 - Assignees: General Electric Company - Applicants: General Electric Company - Inventors: Brian Paul Reeves; Grant Lynn Hartman; Daniel Brue; Victor Jose Acacio; Sean Andrew Kelso - Web page: https://patentgrep.com/patent/US20170284178A1 ## CPC - E21B 43/129: {Adaptations of down-hole pump systems powered by fluid supplied from outside the borehole (gas-lift E21B43/122; jet pumps E21B43/124)} - F04B 9/08: the means being fluid - F04B 17/03: driven by electric motors - F04B 19/22: of reciprocating-piston type - F04B 47/02: the driving mechanisms being situated at ground level (F04B47/12 takes precedence) - F04B 47/06: having motor-pump units situated at great depth - F04B 53/147: {Mounting or detaching of piston rod} - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS - F04B: POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS (machines for liquids, or pumps, of rotary-piston or oscillating-piston type F04C; non-positive-displacement pumps F04D; pumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped F04F) ## Abstract An artificial lift system and a method of operating and installing such an artificial lift system are disclosed. The artificial lift system includes a reciprocating driver and a reciprocating pump. Further, the reciprocating driver includes a driver-shaft and the reciprocating pump includes a pump-shaft detachably engaged to the driver-shaft. In one embodiment, the artificial lift system further includes a coupling member, where the pump-shaft is detachably engaged to the driver-shaft through the coupling member. ## Claims ### Claim 1 An artificial lift system comprising: a reciprocating driver comprising a driver-shaft; and a reciprocating pump comprising a pump-shaft detachably engaged to the driver-shaft. ### Claim 2 (depends on 1) The artificial lift system of claim 1, further comprising a coupling member, wherein the pump-shaft is detachably engaged to the driver-shaft via the coupling member. ### Claim 3 (depends on 2) The artificial lift system of claim 2, wherein one among the driver-shaft and the pump-shaft comprises a notch and wherein the coupling member comprises a first end coupled to other among the driver-shaft and the pump-shaft. ### Claim 4 (depends on 3) The artificial lift system of claim 3, wherein the coupling member further comprises a second end and a plurality of tines extending from the second end up to a predefined distance towards the first end, wherein the plurality of tines is detachably engaged to the notch. ### Claim 5 (depends on 2) The artificial lift system of claim 2, wherein the coupling member comprises a connecting member comprising a slot and a harpoon anchor detachably engaged to the slot, wherein the harpoon anchor is coupled to one among the driver-shaft and the pump-shaft and the connecting member is coupled to other among the pump-shaft and the driver-shaft. ### Claim 6 (depends on 2) The artificial lift system of claim 2, wherein the coupling member comprises a connecting member comprising a slot and a shear pin detachably engaged to the slot, wherein the shear pin is coupled to one among the driver-shaft and the pump-shaft and the connecting member is coupled to other among the pump-shaft and the driver-shaft. ### Claim 7 (depends on 2) The artificial lift system of claim 2, wherein the coupling member comprises a fishing-neck-like member and an overshot member detachably engaged to the fishing-neck-like member, wherein the fishing-neck-like member is coupled to one among the driver-shaft and the pump-shaft and the overshot member is coupled to other among the pump-shaft and the driver-shaft. ### Claim 8 (depends on 2) The artificial lift system of claim 2, wherein the coupling member comprises a first connecting member comprising a slot and a spring collet comprising a shoulder portion detachably engaged to the slot, wherein the spring collet is coupled to one among the driver-shaft and the pump-shaft and the first connecting member is coupled to other among the pump-shaft and the driver-shaft. ### Claim 9 (depends on 8) The artificial lift system of claim 8, wherein the shoulder portion is disposed substantially perpendicular to a central axis of the pump-shaft. ### Claim 10 (depends on 8) The artificial lift system of claim 8, wherein the shoulder portion is disposed at a pre-determined tilt angle relative to a central axis of the pump-shaft. ### Claim 11 (depends on 8) The artificial lift system of claim 8, wherein the coupling member further comprises a second connecting member, wherein the spring collet is coupled to the one among the pump-shaft and the driver-shaft via the second connecting member, wherein the second connecting member comprises a first end coupled to the spring collet and a second end comprising a slot. ### Claim 12 A method comprising: installing a reciprocating driver comprising a driver-shaft in a well bore; installing a reciprocating pump comprising a pump-shaft in the well bore; and applying a first force to the reciprocating pump, to detachably engage the pump-shaft to the driver-shaft. ### Claim 13 (depends on 12) The method of claim 12, further comprising applying a second force to the reciprocating pump, to disengage the pump-shaft from the driver-shaft. ### Claim 14 (depends on 13) The method of claim 13, wherein the pump-shaft is detachably engaged to the driver-shaft via a coupling member. ### Claim 15 (depends on 13) The method of claim 13, wherein the second force comprises at least one of a linear force and a rotation force applied using at least one of a hydraulic pressure device, a pneumatic pressure device, a wire line device, a coiled tubing, and a plurality of sucker rods. ### Claim 16 (depends on 12) The method of claim 12, wherein the first force comprises at least one of a linear force and a rotation force applied using at least one of a hydraulic pressure device, a pneumatic pressure device, a wire line device, a coiled tubing, and a plurality of sucker rods. ### Claim 17 A method comprising: powering a reciprocating driver disposed in a well bore, wherein the reciprocating driver comprises a driver-shaft; driving a reciprocating pump disposed in the well bore via the reciprocating driver, wherein the reciprocating pump comprises a pump-shaft detachably engaged to the driver-shaft; and pumping a production fluid from the well bore to a surface unit via a tubing, by driving the reciprocating pump. ### Claim 18 (depends on 17) The method of claim 17, wherein the pump-shaft is detachably engaged to the driver-shaft via a coupling member. ### Claim 19 (depends on 18) The method of claim 18, wherein driving the reciprocating pump comprises transmitting a compressive force directly from the driver-shaft to the pump-shaft. ### Claim 20 (depends on 18) The method of claim 18, wherein driving the reciprocating pump comprises transmitting a tensile force from the pump-shaft to the driver-shaft via the coupling member.