System and Methods for Controlled Fracturing in Formations
US-2015167439-A1 · Jun 18, 2015 · US
Sealing crude oil leakage through wellbore cement fracture using electrokinesis
US11952859B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11952859-B2 |
| Application number | US-202017623095-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 1, 2020 |
| Priority date | Jul 1, 2019 |
| Publication date | Apr 9, 2024 |
| Grant date | Apr 9, 2024 |
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- Title
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Abstract
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The present invention provides a method of repairing one or more fractures in a wellbore cement by an electric field to move micelles from crude oil to the area to be repaired.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of repairing one or more fractures in cement in a wellbore, the wellbore having a direction of flow from a reservoir to a wellhead, the method comprising: providing a plurality of electrodes, pairing the plurality of electrodes to form one or more anode cathode pairs, applying a current to said one or more anode cathode pairs and thereby creating one or more electric fields that (i) produce an attraction between the one or more fractures and micelles from crude oil flowing in the wellbore, and (ii) induce flow of said micelles into the one or more fractures by electrokinesis; thereby depositing the micelles in, and repairing, the one or more fractures. 2. The method of claim 1 wherein the length of the one or more electric fields and location of the one or more electric fields is varied by varying the pairing of the plurality of electrodes. 3. The method of claim 1 wherein the one or more anode cathode pairs are formed along the length of the wellbore. 4. The method of claim 1 wherein the length and location of the one or more created electric fields vary along the wellbore. 5. The method of claim 1 wherein at least one of said electrodes is placed along the wellbore through a wireline. 6. The method of claim 1 wherein at least one of said electrodes is placed along the wellbore through a casing string. 7. The method of claim 1 wherein at least one of said electrodes is placed along the wellbore by creating a pathway through an area surrounding the wellbore. 8. The method of claim 7 wherein at least one of said electrodes is placed along the wellbore by creating a pathway through groundwater. 9. The method of claim 7 wherein at least one of said electrodes is placed along the wellbore by creating a pathway through a geological formation. 10. The method of claim 7 wherein at least one anode of said one or more anode cathode pairs is a cathodic protection of said wellbore. 11. A method of repairing one or more fractures in cement in a wellbore, the wellbore having a direction of flow from a reservoir to a wellhead, the method comprising: providing a plurality of electrodes, pairing the plurality of electrodes to form one or more anode cathode pairs, applying a current to said one or more anode cathode pairs and thereby creating one or more electric fields that (i) produce an attraction between the one or more fractures and micelles from crude oil flowing in the wellbore, (ii) induce movement of the micelles in the direction of flow in the wellbore by electrophoresis and, (iii) produce electroosmotic flow of liquid in a direction opposite to the direction of flow in the wellbore; thereby depositing the micelles in, and repairing, the one or more fractures.
Assignees
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Classifications
- E21B33/13Primary
Methods or devices for cementing, for plugging holes, crevices or the like · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11952859B2 cover?
- The present invention provides a method of repairing one or more fractures in a wellbore cement by an electric field to move micelles from crude oil to the area to be repaired.
- Who is the assignee on this patent?
- Anwar Ishtiaque, Taha Mahmoud Reda, Stormont John, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification E21B33/13. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Apr 09 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).