Patents
US 11220874 B2: Flow measurement choke valve system
- Granted
- 2022-01-11
- Filed
- 2020-04-30 application 16863588
- Type
- Utility · 17 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A drilling system includes a choke valve system in fluid communication with a wellbore via a fluid return line. The choke valve system is configured to receive a return fluid from the wellbore. The choke valve system includes a choke valve through which the return fluid flows and a valve position sensor configured to determine a position of the choke valve. The drilling system further includes a controller in signal communication with the valve position sensor. The controller is programmed to determine a flow rate of the return fluid through the fluid return line based on the determined position of the choke valve. The controller is further programmed to adjust the position of the choke valve in response to the determined flow rate of the return fluid.
Source: PVGPATDIS, file of 2026-04-10 (ipg220111.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| ADS Services, LLC 18 patents | US company or organization | Midland, TX | ADS SERVICES, LLC State business registration EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Scott Charles | Houston, TX | 15 | PVGPATDIS, file of 2026-04-10 | |
| Anand Parthasarathy | Cypress, TX | 34 | 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 | E21B21/106 | 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 |
|---|---|---|---|---|---|
| 2025-09-09 | Assignment Assignment of assignor's interest | ADS SERVICES, LLC signed 2025-07-31 | CORTEC, L.L.C. HOUSTON, TX | 72200/236 | ECORSEXC, file of 2026-09-25 |
| 2020-12-15 | Assignment Assignment of assignor's interest | EXPRO AMERICAS, LLC signed 2020-12-01 | ADS SERVICES LLC MIDLAND, TX | 54649/810 | ECORSEXC, file of 2026-09-25 |
| 2020-09-02 | Assignment Assignment of assignor's interest | PARTHASARATHY, ANAND signed 2020-04-28 CHARLES, SCOTT signed 2020-04-29 | EXPRO AMERICAS, LLC HOUSTON, TX | 53677/962 | 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.