# US 10,370,909 B2 · Enhanced slickline > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,370,909 B2 - Document ID: US10370909B2 - Status: Granted - Kind: B2 - Application number: 15/323,656 - Filed: 2014-08-04 - Published: 2017-06-08 - Granted: 2019-08-06 - Earliest claimed: 2014-08-04 - Assignees: Halliburton Energy Services, Inc. - Applicants: Halliburton Energy Services, Inc. - Inventors: Sean Gregory Thomas; Wei Zhang; David L. Perkins - Web page: https://patentgrep.com/patent/US10370909B2 ## CPC - E21B 17/20: Flexible or articulated drilling pipes {, e.g. flexible or articulated rods, pipes or cables} - D07B 1/145: {comprising elements for indicating or detecting the rope or cable status} - D07B 1/162: {characterised by a plastic or rubber enveloping sheathing} - E21B 23/14: for displacing a cable or a cable-operated tool, e.g. for logging or perforating operations in deviated wells - E21B 47/00: Survey of boreholes or wells (monitoring pressure or flow of drilling fluid E21B21/08) - D07B 1/147: {comprising electric conductors or elements for information transfer (D07B1/145 takes precedence)} - D07B 2201/2087: being of the coated type - D07B 2201/2088: having multiple layers - D07B 2201/2092: characterised by the materials used - D07B 2201/2096: Light guides - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS - D07B: ROPES OR CABLES IN GENERAL (joining ropes or cables to one another or to other objects B65H69/00, F16G11/00; {mountaineering ropes A63B29/02}; mechanical finishing or dressing of ropes D02J; {braiding D04C}; decorative ropes or cords D04D; suspension cables for bridges E01D19/16; specially adapted for driving, or for being driven by, pulleys or other gearing elements F16G9/00; electric cables or joints insofar as electrical aspects are essential H01B, H01R) ## Abstract In accordance with embodiments of the present disclosure, a slickline for use in well drilling and hydrocarbon recovery operations includes a cable and an intermediate layer disposed around the cable. The slickline also includes a doped polymeric coating layered around the intermediate layer. The doped polymeric coating is a different material from the intermediate layer, and the doped polymeric coating includes a polymeric material doped with an element that is detectable within the doped polymeric coating via a detection machine for purposes of determining wear or other aspects about the conditions of the slickline. ## Claims ### Claim 1 A slickline, comprising: a cable; an intermediate layer disposed around the cable; and a first doped polymeric coating layered around the intermediate layer, wherein the first doped polymeric coating comprises a different material from the intermediate layer, and wherein the first doped polymeric coating comprises a polymeric material doped with an element that is detectable within the first doped polymeric coating via a detection machine. ### Claim 2 (depends on 1) The slickline of claim 1, wherein the first doped polymeric coating comprises the polymeric material doped with a conductive material in a concentration that is detectable via an eddy current measurement device. ### Claim 3 (depends on 1) The slickline of claim 1, wherein the first doped polymeric coating comprises the polymeric material doped with an elemental tracer in a concentration that is detectable via an X-ray diffraction (XRD) or X-ray fluorescence (XRF) machine. ### Claim 4 (depends on 3) The slickline of claim 3, wherein the elemental tracer does not comprise iron, chromium, silicon, or tin. ### Claim 5 (depends on 3) The slickline of claim 3, comprising a second doped polymeric coating layered around the first doped polymeric coating, wherein the first doped polymeric coating comprises the polymeric material doped with a first elemental tracer and wherein the second doped polymeric coating comprises the polymeric material doped with a second elemental tracer, wherein an atomic number of the first elemental tracer is different from an atomic number of the second elemental tracer such that the first and second elemental tracers are distinguishable from each other via an XRD machine or an XRF machine. ### Claim 6 (depends on 3) The slickline of claim 3, wherein the first doped polymeric coating comprises the polymeric material doped with a first elemental tracer and wherein the intermediate layer is doped with a second elemental tracer, wherein an atomic number of the first elemental tracer is different from an atomic number of the second elemental tracer such that the first and second elemental tracers are distinguishable from each other via an XRD machine or an XRF machine. ### Claim 7 (depends on 3) The slickline of claim 3, wherein the first doped polymeric coating is layered around the intermediate layer along a first lengthwise zone of the slickline, and wherein a second doped polymeric coating is layered around the intermediate layer along a second lengthwise zone of the slickline adjacent the first lengthwise zone, wherein an atomic number of the first elemental tracer is different from an atomic number of the second elemental tracer such that the first and second elemental tracers are distinguishable from each other via an XRD machine or an XRF machine. ### Claim 8 (depends on 1) The slickline of claim 1, comprising a hydrophobic or hydrophilic coating disposed over the first doped polymeric coating. ### Claim 9 A slickline, comprising: a cable; an intermediate layer disposed around the cable; a polymeric coating layered around the intermediate layer, wherein the polymeric coating comprises a different material from the intermediate layer; and an outer coating disposed over the polymeric coating, wherein the outer coating comprises a hydrophobic coating or a hydrophilic coating. ### Claim 10 (depends on 9) The slickline of claim 9, wherein the outer coating comprises manganese oxide polystyrene, zinc oxide polystyrene, precipitated calcium carbonate, carbon nano-tube structures, silica nano-coating, titanium nitride, or a hyaluronic acid based product. ### Claim 11 (depends on 9) The slickline of claim 9, wherein the outer coating comprises a gel-based coating. ### Claim 12 (depends on 9) The slickline of claim 9, wherein the outer coating comprises a hydrophobic coating disposed over the polymeric coating and a hydrophilic coating disposed over the hydrophobic coating. ### Claim 13 (depends on 9) The slickline of claim 9, wherein the polymeric coating comprises a polymeric material doped with an element that is detectable within the polymeric coating via an eddy current measurement device, an X-ray diffraction (XRD) machine, or an X-ray fluorescence (XRF) machine. ### Claim 14 A method for detecting wear on a slickline, comprising: moving the slickline past a detection machine during deployment or retraction of the slickline from a wellbore, wherein the slickline comprises: a cable; an intermediate layer disposed around the cable; and a first doped polymeric coating layered around the intermediate layer, wherein the first doped polymeric coating comprises a different material from the intermediate layer, and wherein the first doped polymeric material comprises a polymeric material doped with a detectable element that is detectable within the first doped polymeric coating via the detection machine; detecting, via the detection machine, a presence or an amount of the detectable element in the first doped polymeric coating of the slickline moving past the detection machine; and determining whether the first doped polymeric coating of the slickline is damaged based on the presence or amount of the detectable element detected by the detecting machine. ### Claim 15 (depends on 14) The method of claim 14, wherein the detection machine comprises an eddy current measurement device that detects a conductivity of the first doped polymeric coating of the slickline, or an X-ray diffraction (XRD) or X-ray fluorescence (XRF) machine that detects an elemental tracer in the first doped polymeric coating of the slickline. ### Claim 16 (depends on 14) The method of claim 14, comprising determining the first doped polymeric coating of the slickline is damaged when the detection machine detects elements of a subterranean formation in the first doped polymeric coating of the slickline. ### Claim 17 (depends on 14) The method of claim 14, comprising determining the first doped polymeric coating of the slickline is damaged when the detection machine detects a change in a ratio of the detectable element. ### Claim 18 (depends on 14) The method of claim 14, wherein the slickline comprises a hydrophobic or hydrophilic coating layered over the first doped polymeric coating of the slickline. ### Claim 19 (depends on 14) The method of claim 14, further comprising moving the slickline past the detection machine via a spool during deployment or retraction of the slickline from the wellbore, wherein the detection machine is disposed between the spool and the wellbore. ### Claim 20 (depends on 14) The method of claim 14, wherein the detection machine is disposed within the wellbore.