# US 9,518,456 B2 · Coiled tubing deployed gas injection mandrel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,518,456 B2 - Document ID: US9518456B2 - Status: Granted - Kind: B2 - Application number: 14/062,348 - Filed: 2013-10-24 - Published: 2014-05-01 - Granted: 2016-12-13 - Earliest claimed: 2012-10-29 - Assignees: Schlumberger Technology Corporation - Applicants: Schlumberger Technology Corporation - Inventors: Ganesh Balasubramanian; Yazid Mohamed Bashir; Bjorn Staale Varnes - Web page: https://patentgrep.com/patent/US9518456B2 ## CPC - E21B 43/123: {Gas lift valves} - E21B 17/20: Flexible or articulated drilling pipes {, e.g. flexible or articulated rods, pipes or cables} - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS ## Abstract A coiled tubing gas injection mandrel includes a housing assembly capable of attachment to coiled tubing, wherein the housing assembly comprises an up-hole end, a down-hole end, a sleeve longitudinally integrally connected with the up-hole end and the down-hole end, and a slide-through valve receptacle assembly removably connected within the sleeve. In more detail, the slide-through valve receptacle assembly comprises an up-hole pipe with a shoulder, at least one laterally extending projection, at least one laterally extending port, a down-hole pipe integrally connected with the up-hole pipe, and a longitudinal bore within the up-hole pipe and down-hole pipe. The up-hole end and down-hole end are capable of attachment with coiled tubing. The slide-through valve assembly and the sleeve form a gas flow passageway, wherein the gas flow passageway controls the flow of gas through a gas lift valve installed in the slide-through valve receptacle for gas being injected into the coiled tubing. ## Claims ### Claim 1 A coiled tubing gas injection mandrel, comprising a housing assembly capable of attachment to coiled tubing, wherein the housing assembly comprises an up-hole end, a down-hole end, a sleeve longitudinally integrally connected with the up-hole end and the down-hole end, and a slide-through valve receptacle assembly removably connected within the sleeve so as to define a flow path passageway extending from the up-hole end of the housing to the down-hole end of the housing between an exterior of the slide-through valve receptacle and an interior of the sleeve. ### Claim 2 (depends on 1) The coiled tubing gas injection mandrel of claim 1 wherein the up-hole end, down-hole end and sleeve are a welded assembly. ### Claim 3 (depends on 1) The coiled tubing gas injection mandrel of claim 1 wherein the housing assembly is connected to a coiled tubing through the up-hole end. ### Claim 4 (depends on 3) The coiled tubing gas injection mandrel of claim 3 further wherein the housing assembly is connected to a coiled tubing through the down-hole end. ### Claim 5 (depends on 3) The coiled tubing of claim 3 wherein the coiled tubing gas injection mandrel is connected with the coiled tubing as a threaded assembly. ### Claim 6 (depends on 1) The coiled tubing gas injection mandrel of claim 1 wherein the slide-through valve receptacle assembly is capable of housing a gas lift valve and latch assembly. ### Claim 7 (depends on 1) The coiled tubing gas injection mandrel of claim 1 wherein the connection between the sleeve and the slide-through valve receptacle assembly forms a flow path passageway. ### Claim 8 (depends on 1) The coiled tubing gas injection mandrel of claim 1 wherein the sleeve and slide-through valve receptacle assembly are removably connected by a sleeve projection and slide-through valve receptacle assembly laterally extending projection. ### Claim 9 (depends on 1) The coiled tubing gas injection mandrel of claim 1 wherein the slide-through valve receptacle assembly comprises an up-hole pipe, wherein the up-hole pipe comprises a shoulder, at least one laterally extending projection, at least one laterally extending port, a down-hole pipe integrally connected with the up-hole pipe, and a longitudinal bore within the up-hole pipe and down-hole pipe. ### Claim 10 (depends on 6) The coiled tubing gas injection mandrel of claim 6 further comprising a gas lift valve within the slide-through valve receptacle assembly. ### Claim 11 (depends on 10) The coiled tubing gas injection mandrel of claim 10 wherein the gas lift valve is connected with the slide-through valve receptacle assembly through a latch assembly. ### Claim 12 (depends on 11) The coiled tubing gas injection mandrel of claim 11 wherein the latch assembly comprises a latch lug. ### Claim 13 (depends on 10) The coiled tubing gas injection mandrel of claim 10 wherein gas is capable of flowing from a bore in the up-hole end into the sleeve, into a gas flow chamber and then through the valve into the down-hole end. ### Claim 14 (depends on 1) The coiled tubing gas injection mandrel of claim 1 wherein the coiled tubing gas injection mandrel is deployable into production tubing using a coiled tubing. ### Claim 15 A system comprising production tubing, coiled tubing and a coiled tubing gas injection mandrel connected with the coiled tubing, the coiled tubing gas injection mandrel comprising: a sleeve; a slide-through valve receptacle assembly disposed within the sleeve; and a flow path passageway formed between an interior of the sleeve and the slide-through valve receptacle assembly, wherein gas is injected through the coiled tubing and flow path passageway of the coiled tubing gas injection mandrel before being discharged into the production tubing. ### Claim 16 (depends on 15) The system of claim 15, wherein the coiled tubing gas injection mandrel enables gas lift through an annular region between the coiled tubing and the production tubing. ### Claim 17 (depends on 15) The system of claim 15, wherein the flow path passageway defines a flow path for an injected gas, enabling the injected gas flow to be regulated through an installed gas lift valve. ### Claim 18 A method of performing gas lift in a production well comprising injecting gas through a coiled tubing and a coiled tubing gas injection mandrel, the coiled tubing gas injection mandrel comprising: a sleeve; a slide-through valve receptacle assembly disposed within the sleeve; and a flow path passageway extending from above the slide-through valve receptacle assembly to below the slide-through valve receptacle assembly and between an interior of the sleeve and an exterior of the slide-through valve receptacle assembly, wherein the coiled tubing and the coiled tubing gas injection mandrel are within a production tubing. ### Claim 19 (depends on 18) The method of claim 18 wherein the coiled tubing gas injection mandrel comprises a housing assembly capable of attachment to coiled tubing, wherein the housing assembly comprises an up-hole end, a down-hole end, the sleeve longitudinally integrally connected with the up-hole end and the down-hole end, and the slide-through valve receptacle assembly removably connected within the sleeve. ### Claim 20 (depends on 19) The method of claim 19 wherein the slide-through valve receptacle assembly comprises an up-hole pipe, wherein the up-hole pipe comprises a shoulder, at least one laterally extending projection, at least one laterally extending port, a down-hole pipe integrally connected with the up-hole pipe, and a longitudinal bore within the up-hole pipe and down-hole pipe.