Patents
US 12345138 B2: Well perforator evaluation system and method
- Granted
- 2025-07-01
- Filed
- 2021-07-30 application 17389482
- Type
- Utility · 9 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A testing system for a shaped charge of a perforating gun, the testing system including a housing; a casing assembly located inside the housing; a perforating gun having at least one shaped charge, the perforating gun being located within the casing assembly; a sample material located within the housing, and in direct contact with the casing assembly; a wellbore accumulator in direct contact with the casing assembly and configured to supply a first fluid, at a wellbore pressure, inside the casing assembly; and a formation accumulator in direct contact with the sample material and configured to supply a second fluid, at a formation pressure, on the sample material.
Source: PVGPATDIS, file of 2026-04-10 (ipg250701.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| GEODYNAMICS, INC. 140 patents | US company or organization | Millsap, TX | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Seth Powers | Weatherford, TX | 2 | PVGPATDIS, file of 2026-04-10 | |
| Michael D. Wroblicky | Weatherford, TX | 16 | PVGPATDIS, file of 2026-04-10 | |
| Chris Pool | Weatherford, TX | 1 | PVGPATDIS, file of 2026-04-10 | |
| Jarrod Henry Pearson | Weatherford, TX | 3 | PVGPATDIS, file of 2026-04-10 | |
| John T. Hardesty | Dallas, TX | 91 | PVGPATDIS, file of 2026-04-10 |
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 | E21B43/116 | PVGPATDIS, file of 2026-04-10 |
| F42B | Explosive charges, e.g. for blasting, fireworks, ammunition | F42B35/00 | PVGPATDIS, file of 2026-04-10 |
| G01N | Investigating or analysing materials by determining their chemical or physical properties | G01N33/227 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2026-01-29 | Security interest Security interest Security interest | OIL STATES ENERGY SERVICES, L.L.C. signed 2026-01-28 OIL STATES INDUSTRIES, INC. signed 2026-01-28 GEODYNAMICS, INC. signed 2026-01-28 TEMPRESS TECHNOLOGIES, INC. signed 2026-01-28 | WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT SAN ANTONIO, TX | 74532/194 | PASDL, file of 2026-10-15 |
| 2023-04-10 | Security interest Security interest Security interest | OIL STATES ENERGY SERVICES, L.L.C. signed 2023-04-07 OIL STATES INDUSTRIES, INC. signed 2023-04-07 GEODYNAMICS, INC. signed 2023-04-07 | WELLS FARGO BANK, NATIONAL ASSOCIATION ATLANTA, GA | 63270/608 | PASDL, file of 2026-10-15 |
| 2021-11-02 | Assignment Assignment of assignor's interest | HARDESTY, JOHN T. signed 2021-10-26 PEARSON, JARROD HENRY signed 2021-10-26 POOL, CHRIS signed 2021-10-26 WROBLICKY, MICHAEL D. signed 2021-10-26 POWERS, SETH signed 2021-11-01 | GEODYNAMICS, INC. MILLSAP, TX | 57995/440 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
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.