# US 2024/0201162 A1 · Sensors For Measuring Properties Of Materials Flowing Through A Flowline > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2024/0201162 A1 - Document ID: US20240201162A1 - Status: Published application - Kind: A1 - Application number: 18/081,914 - Filed: 2022-12-15 - Published: 2024-06-20 - Earliest claimed: 2022-12-15 - Assignees: Halliburton Energy Services, Inc. - Applicants: Halliburton Energy Services, Inc. - Inventors: Ahmed Fouda; Baris Guner - Web page: https://patentgrep.com/patent/US20240201162A1 ## CPC - G01N 33/2823: {Raw oil, drilling fluid or polyphasic mixtures} - E21B 49/081: {with down-hole means for trapping a fluid sample (E21B49/10 takes precedence)} - E21B 49/0875: {determining specific fluid parameters} - E21B 49/10: using side-wall fluid samplers or testers - G01N 22/00: Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more (G01N3/00 - G01N17/00, G01N24/00 take precedence) - G01N 27/08: which is flowing continuously - G01N 33/28: Oils {, i.e. hydrocarbon liquids} (edible oils or edible fats G01N33/03) - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS ## Abstract A method and system for downhole sampling. The system may include a downhole fluid sampling tool that may include one or more probes configured to extend into a formation, and a pump configured to collect a fluid from the formation through the one or more probes. The method may further comprise a flowline configured to transport the fluid from the formation through the one or more probes and through the downhole fluid sampling tool and a fluid analysis module comprising a resonator antenna disposed on the flowline and configured to measure at least one property of the fluid. Additionally, the method may comprise measuring at least one property of the fluid with at least one resonator antennas that are disposed on or within an outer surface of the flowline. ## Claims ### Claim 1 A downhole fluid sampling tool comprising: one or more probes configured to extend into a formation; a pump configured to collect a fluid from the formation through the one or more probes; a flowline configured to transport the fluid from the formation through the one or more probes and through the downhole fluid sampling tool; and a fluid analysis module comprising a resonator antenna disposed on the flowline and configured to measure at least one property of the fluid. ### Claim 2 (depends on 1) The downhole fluid sampling tool of claim 1, wherein the resonator antenna is a cavity resonator. ### Claim 3 (depends on 2) The downhole fluid sampling tool of claim 2, wherein the cavity resonator is disposed on an outer surface of the flowline. ### Claim 4 (depends on 2) The downhole fluid sampling tool of claim 2, wherein the cavity resonator is disposed within the flowline and the fluid inside the flowline acts as a substrate of a cavity resonator. ### Claim 5 (depends on 2) The downhole fluid sampling tool of claim 2, wherein the cavity resonator comprises a slot. ### Claim 6 (depends on 5) The downhole fluid sampling tool of claim 5, wherein the flowline comprises a cut slot that is aligned with the slot from the cavity resonator and filled with dielectric material. ### Claim 7 (depends on 6) The downhole fluid sampling tool of claim 6, wherein the cavity resonator is configured to: transmit an electromagnetic (EM) wave through the slot and cut slot and into the flowline; and measure a reflected EM wave through the slot and cut slot from the flowline and compute an S11 parameter indicative of electrical properties of the fluid. ### Claim 8 (depends on 2) The downhole fluid sampling tool of claim 2, wherein the cavity resonator is disposed within at least part of a cavity carved within a wall of the flowline. ### Claim 9 (depends on 1) The downhole fluid sampling tool of claim 1, wherein the resonator antenna comprises two or more nested resonator antennas configured to measure a plurality of S11 parameters at more than one frequency. ### Claim 10 (depends on 1) The downhole fluid sampling tool of claim 1, wherein the resonator antenna is a microstrip patch antenna. ### Claim 11 (depends on 10) The downhole fluid sampling tool of claim 10, wherein the microstrip patch antenna comprises a slot and the flowline comprises a cut slot that is aligned with the slot from the microstrip patch antenna and filled with dielectric material. ### Claim 12 (depends on 11) The downhole fluid sampling tool of claim 11, wherein the microstrip patch antenna is disposed within the flowline and the fluid inside the flowline acts as a substrate of the microstrip patch antenna. ### Claim 13 (depends on 11) The downhole fluid sampling tool of claim 11, wherein the microstrip patch antenna comprises conducting vias located around a dielectric material. ### Claim 14 (depends on 11) The downhole fluid sampling tool of claim 11, wherein the microstrip patch antenna is disposed on an outer surface of the flowline. ### Claim 15 (depends on 11) The downhole fluid sampling tool of claim 11, wherein the microstrip patch antenna is disposed between an inner surface of the flowline and an outer surface of the flowline. ### Claim 16 A method comprising: disposing a downhole sampling tool into a formation; extending one or more probes from the downhole sampling tool into the formation; collecting a fluid from the formation through the one or more probes with a pump; transporting the fluid from the formation through the one or more probes and through the downhole fluid sampling tool with a flowline; and measuring at least one property of the fluid with two or more resonator antennas that are disposed on or within an outer surface of the flowline. ### Claim 17 (depends on 16) The method of claim 16, further comprising measuring at least one S21 parameter with the two or more resonator antennas. ### Claim 18 (depends on 17) The method of claim 17, wherein the two or more resonator antennas are nested and configured to measure a plurality of S21 parameters at more than one frequency. ### Claim 19 (depends on 17) The method of claim 17, further comprising forming a resistivity image and a permittivity image from at least one S21 parameter. ### Claim 20 (depends on 19) The method of claim 19, wherein at least one property of the fluid is identified with at least the resistivity image and the permittivity image using tomographic techniques.