Patents
US 12768248 B2: Using fluid pill for heat transfer downhole
- Granted
- 2026-10-20
- Filed
- 2025-08-20 application 19304816
- Type
- Utility · 8 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A method of cooling at least a portion of a downhole tool located within a drilled wellbore using a fluid pill configured to transfer heat away from a heat-generating segment of the downhole tool. The downhole tool may be a wireline logging tool. The fluid pill can comprise at least one fluid coolant and may include other additives that enable the fluid pill to transfer heat away from a heat-generating segment of the downhole tool even in the presence of one or more fluids present in the drilled wellbore. The fluid pill can be introduced into residual drilling mud in the wellbore, and the downhole tool may thereafter be operated with the heat-generating segment thereof in fluid contact with the fluid pill, whereby heat generated by the heat-generating segment is transferred away from the downhole tool and toward a wall of the wellbore by the fluid pill.
Source: PTBLXML, file of 2026-10-20 (ipgb20261020.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Halliburton Energy Services, Inc. 9,888 patents | US company or organization | Houston, TX | HALLIBURTON ENERGY SERVICES Federal lobbying client FUZZY medium confidence: same name (legal endings aside) and state | PTBLXML, file of 2026-10-20 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Christian Reding | Houston, TX | 8 | PTBLXML, file of 2026-10-20 | |
| David Earl Ball | Stafford, TX | 9 | PTBLXML, file of 2026-10-20 | |
| Marcus Ray Hudson | Pearland, TX | 9 | PTBLXML, file of 2026-10-20 | |
| James Cernosek | Richmond, TX | 15 | PTBLXML, file of 2026-10-20 | |
| Jay Deville | Spring, TX | PTBLXML, file of 2026-10-20 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| E21B | Earth or rock drilling; obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells | E21B36/001 | PTBLXML, file of 2026-10-20 |
| C09K | Materials for miscellaneous applications, not provided for elsewhere | C09K5/16 | PTBLXML, file of 2026-10-20 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
No recorded assignments or security interests on file for this patent.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.