Office Action Predictor
Application No. 18/497,682

CAPROCK INTEGRITY FOR GEOLOGICAL CO2 GEOSEQUESTRATION

Non-Final OA §102
Filed
Oct 30, 2023
Examiner
TOLEDO-DURAN, EDWIN J
Art Unit
3678
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Saudi Arabian Oil Company
OA Round
1 (Non-Final)
69%
Grant Probability
Favorable
1-2
OA Rounds
2y 8m
To Grant
99%
With Interview

Examiner Intelligence

69%
Career Allow Rate
530 granted / 764 resolved
Without
With
+48.0%
Interview Lift
avg trend
2y 8m
Avg Prosecution
53 pending
817
Total Applications
career history

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
45.8%
+5.8% vs TC avg
§102
25.9%
-14.1% vs TC avg
§112
22.4%
-17.6% vs TC avg
Black line = Tech Center average estimate • Based on career data

Office Action

§102
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claims 1, 2, 7-11 and 17-20 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Georgiou et al (U.S. Patent Application Publication No. 2010/0326924). As to Claim 1, Georgiou discloses a method comprising: Providing an injection well (18b) into which fluids are injected into a saline aquifer (13), the saline aquifer located below a caprock (12c) and an interface (Boundary between 13 and 12c) located between the saline aquifer and the caprock; Injecting a plurality of precursor chemicals (14c) through the injection well (18b) and into the saline aquifer (13); Depositing the precursor chemicals at or near the interface (Boundary between 13 and 12c); Injecting CO2 (16c) through the injection well (18b) and into the saline aquifer (13); Contacting the CO2 with the precursor chemicals (Paragraph 0047: “Further from a chemical reactivity perspective, this particular embodiment also contemplates that the carbon dioxide waste product 16c that is injected into the aquifer 13 in conjunction with the desalination concentrated brine waste product 14c may react with water to form carbonic acid); and Reacting the CO2 and the precursor chemicals to reinforce the caprock by one or both of mineralization or gelation, thereby forming reinforced caprock (Paragraph 0047: “Further from a chemical reactivity perspective, this particular embodiment also contemplates that the carbon dioxide waste product 16c that is injected into the aquifer 13 in conjunction with the desalination concentrated brine waste product 14c may react with water to form carbonic acid, and then subsequently dissociate into protons, bicarbonate anions and carbonate anions by virtue of generally conventional chemical kinetic considerations and chemical thermodynamic considerations. In particular, such protons, bicarbonate anions and carbonate anions are further contemplated to potentially be reactive with minerals within the imperviously capped porous rock formation that comprises the aquifer 13. To that end, the presence of the protons, bicarbonate anions and carbonate anions may facilitate or contribute to chemical reactions with the minerals within the foregoing imperviously capped porous rock formations, and thus subsequently also lead to additional mineral deposits within the imperviously capped porous rock formations that may make the imperviously capped porous rock formations less porous”). As to Claim 2, Georgiou discloses the invention of Claim 1 (Refer to Claim 1 discussion). Georgiou also discloses wherein the plurality of precursor chemicals comprises bifunctional molecules comprising a first functional group for binding to a mineral surface of the caprock and a second functional group for reacting with the CO2 (Paragraph 0047: “Further from a chemical reactivity perspective, this particular embodiment also contemplates that the carbon dioxide waste product 16c that is injected into the aquifer 13 in conjunction with the desalination concentrated brine waste product 14c may react with water to form carbonic acid, and then subsequently dissociate into protons, bicarbonate anions and carbonate anions by virtue of generally conventional chemical kinetic considerations and chemical thermodynamic considerations. In particular, such protons, bicarbonate anions and carbonate anions are further contemplated to potentially be reactive with minerals within the imperviously capped porous rock formation that comprises the aquifer 13. To that end, the presence of the protons, bicarbonate anions and carbonate anions may facilitate or contribute to chemical reactions with the minerals within the foregoing imperviously capped porous rock formations, and thus subsequently also lead to additional mineral deposits within the imperviously capped porous rock formations that may make the imperviously capped porous rock formations less porous”). As to Claim 7, Georgiou discloses the invention of Claim 1 (Refer to Claim 1 discussion). Georgiou also discloses wherein the saline aquifer (13) is an aqueous environment comprising divalent ions, the divalent ions including at least one or both of Mg2+ or Ca2+ (Paragraph 0047: “Also considered within the context of an imperviously capped porous rock formation are silicate material reactions with aqueous carbon dioxide, such as but not limited to calcium-aluminum silicate material reactions with aqueous carbon dioxide. This particular class of reaction form a desirable calcium carbonate reaction product for storage of carbon dioxide, as well as a hydrated aluminum silicate clay product”). As to Claim 8, Georgiou discloses the invention of Claim 1 (Refer to Claim 1 discussion). Georgiou also discloses further comprising geosequestering a CO2 plume (16c) beneath the reinforced caprock (12c). As to Claim 9, Georgiou discloses the invention of Claim 1 (Refer to Claim 1 discussion). Georgiou also discloses wherein the caprock (16c) comprises at least one leakage pathway selected from the group consisting of a fault, a fracture, and any combination thereof (A rock formation has natural cracks and fissures), and further comprising geosequestering a CO2 plume (16c) beneath the reinforced caprock (12c) and preventing leakage of CO2 from the geosequestered CO2 plume through the at least one leakage pathway (As per Paragraph 0047, the reaction reduces permeability and therefore prevent leakage). As to Claim 10, Georgiou discloses a method comprising: Providing an injection well (18b) into which fluids (16c) are injected into a saline aquifer (13) having a geosequestered CO2 plume therein (Paragraph 0043: “However, the injected carbon dioxide waste product 16c, particularly when injected separately from the desalination concentrated brine waste product 14c”), the saline aquifer located below a caprock (12c) and an interface (Boundary between 12c and 13) located between the saline aquifer (13) and the caprock (12c), and Wherein the caprock comprises at least one leakage pathway (A rock formation has natural cracks and fissures); Injecting a plurality of precursor chemicals (14c) through the injection well (18b) and into the saline aquifer (13); Depositing the precursor chemicals (14c) at or near the interface (Boundary between 12c and 13); Contacting the precursor chemicals (14c) with the geosequestered CO2 (16c); and Reacting the CO2 (16c) and the precursor chemicals (14c) to reinforce the caprock by one or both of mineralization or gelation, thereby forming reinforced caprock (Paragraph 0047: “Further from a chemical reactivity perspective, this particular embodiment also contemplates that the carbon dioxide waste product 16c that is injected into the aquifer 13 in conjunction with the desalination concentrated brine waste product 14c may react with water to form carbonic acid, and then subsequently dissociate into protons, bicarbonate anions and carbonate anions by virtue of generally conventional chemical kinetic considerations and chemical thermodynamic considerations. In particular, such protons, bicarbonate anions and carbonate anions are further contemplated to potentially be reactive with minerals within the imperviously capped porous rock formation that comprises the aquifer 13. To that end, the presence of the protons, bicarbonate anions and carbonate anions may facilitate or contribute to chemical reactions with the minerals within the foregoing imperviously capped porous rock formations, and thus subsequently also lead to additional mineral deposits within the imperviously capped porous rock formations that may make the imperviously capped porous rock formations less porous”) and preventing leakage of CO2 from the geosequestered CO2 plume through the at least one leakage pathway (As per Paragraph 0047, the reaction reduces permeability and therefore prevent leakage). As to Claim 11, Georgiou discloses the invention of Claim 10 (Refer to Claim 10 discussion). Georgiou also discloses wherein the plurality of precursor chemicals comprises bifunctional molecules comprising a first functional group for binding to a mineral surface of the caprock and a second functional group for reacting with the CO2 (Paragraph 0047: “Further from a chemical reactivity perspective, this particular embodiment also contemplates that the carbon dioxide waste product 16c that is injected into the aquifer 13 in conjunction with the desalination concentrated brine waste product 14c may react with water to form carbonic acid, and then subsequently dissociate into protons, bicarbonate anions and carbonate anions by virtue of generally conventional chemical kinetic considerations and chemical thermodynamic considerations. In particular, such protons, bicarbonate anions and carbonate anions are further contemplated to potentially be reactive with minerals within the imperviously capped porous rock formation that comprises the aquifer 13. To that end, the presence of the protons, bicarbonate anions and carbonate anions may facilitate or contribute to chemical reactions with the minerals within the foregoing imperviously capped porous rock formations, and thus subsequently also lead to additional mineral deposits within the imperviously capped porous rock formations that may make the imperviously capped porous rock formations less porous”). As to Claim 17, Georgiou discloses the invention of Claim 10 (Refer to Claim 10 discussion). Georgiou also discloses wherein the saline aquifer (13) is an aqueous environment comprising divalent ions, the divalent ions including at least one or both of Mg2+ or Ca2+ (Paragraph 0047: “Also considered within the context of an imperviously capped porous rock formation are silicate material reactions with aqueous carbon dioxide, such as but not limited to calcium-aluminum silicate material reactions with aqueous carbon dioxide. This particular class of reaction form a desirable calcium carbonate reaction product for storage of carbon dioxide, as well as a hydrated aluminum silicate clay product”). As to Claim 18, Georgiou discloses the invention of Claim 10 (Refer to Claim 10 discussion). Georgiou also discloses wherein the at least one leakage pathway is selected from the group consisting of a fault, a fracture, and any combination thereof (A rock formation has natural cracks and fissures). As to Claim 19, Georgiou discloses system comprising: An injection well (18c) for accessing a saline aquifer (13); A reinforced caprock (12c) located above the saline aquifer (13), Wherein the reinforced caprock (12c) is comprised of one or both of mineralization or gelation by a reaction between a plurality of precursor chemicals (14c) and CO2 (Paragraph 0047: “Further from a chemical reactivity perspective, this particular embodiment also contemplates that the carbon dioxide waste product 16c that is injected into the aquifer 13 in conjunction with the desalination concentrated brine waste product 14c may react with water to form carbonic acid, and then subsequently dissociate into protons, bicarbonate anions and carbonate anions by virtue of generally conventional chemical kinetic considerations and chemical thermodynamic considerations. In particular, such protons, bicarbonate anions and carbonate anions are further contemplated to potentially be reactive with minerals within the imperviously capped porous rock formation that comprises the aquifer 13. To that end, the presence of the protons, bicarbonate anions and carbonate anions may facilitate or contribute to chemical reactions with the minerals within the foregoing imperviously capped porous rock formations, and thus subsequently also lead to additional mineral deposits within the imperviously capped porous rock formations that may make the imperviously capped porous rock formations less porous”); and A geosequestered CO2 plume (16c) in the saline aquifer (13) beneath the reinforced caprock (12c). As to Claim 20, Georgiou discloses the invention of Claim 19 (Refer to Claim 19 discussion). Georgiou also discloses wherein the plurality of precursor chemicals comprises bifunctional molecules comprising a first functional group for binding to a mineral surface of the caprock and a second functional group for reacting with the CO2 (Paragraph 0047: “Further from a chemical reactivity perspective, this particular embodiment also contemplates that the carbon dioxide waste product 16c that is injected into the aquifer 13 in conjunction with the desalination concentrated brine waste product 14c may react with water to form carbonic acid, and then subsequently dissociate into protons, bicarbonate anions and carbonate anions by virtue of generally conventional chemical kinetic considerations and chemical thermodynamic considerations. In particular, such protons, bicarbonate anions and carbonate anions are further contemplated to potentially be reactive with minerals within the imperviously capped porous rock formation that comprises the aquifer 13. To that end, the presence of the protons, bicarbonate anions and carbonate anions may facilitate or contribute to chemical reactions with the minerals within the foregoing imperviously capped porous rock formations, and thus subsequently also lead to additional mineral deposits within the imperviously capped porous rock formations that may make the imperviously capped porous rock formations less porous”). Allowable Subject Matter Claims 3-6 and 12-16 are objected to as being dependent upon a rejected base claim. Claims 1 and 10 would be allowable if the limitations of claims 3, 5 and 6 are all added in the alternative into claim 1 and if the limitations of claims 12, 14, 15 and 16 are all added in the alternative into claim 10. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to EDWIN J TOLEDO-DURAN whose telephone number is (571)270-7501. The examiner can normally be reached Monday through Friday: 10:00AM to 6:00PM EST. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, AMBER ANDERSON can be reached at (571) 270-5281. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /EDWIN J TOLEDO-DURAN/Primary Examiner, Art Unit 3678
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Prosecution Timeline

Oct 30, 2023
Application Filed
May 21, 2025
Non-Final Rejection — §102
Jul 01, 2025
Interview Requested
Jul 10, 2025
Examiner Interview Summary
Jul 10, 2025
Applicant Interview (Telephonic)
Aug 05, 2025
Response after Non-Final Action
Aug 05, 2025
Response Filed
Aug 13, 2025
Response Filed

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Prosecution Projections

1-2
Expected OA Rounds
69%
Grant Probability
99%
With Interview (+48.0%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 764 resolved cases by this examiner