Wellbore fluids including fluid loss materials comprising a polymer and a bridging material and related methods
US-12559667-B2 · Feb 24, 2026 · US
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Sui Changping patents
Sui Changping is listed as an inventor on 22 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Sui Changping |
| Total patents | 22 |
| First publication | Jun 4, 2015 |
| Latest publication | Feb 24, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Wellbore fluids including fluid loss materials, and related methods
US-2025263598-A1 · Aug 21, 2025 · US
Production chemicals and methods of selecting the production chemicals based on Hansen solubility parameters
US-12122970-B2 · Oct 22, 2024 · US
Sized bridging agents, low density pill and fluid compositions comprising said agents, and methods of controlling fluid loss and formation damage using said compositions
US-12065611-B1 · Aug 20, 2024 · US
Production chemicals and methods of selecting the production chemicals based on hansen solubility parameters
US-2023250350-A1 · Aug 10, 2023 · US
Reversible oil-based mud
US-11639461-B2 · May 2, 2023 · US
Organic-inorganic hybrid polymer based fluids
US-11286410-B2 · Mar 29, 2022 · US
Reversible oil-based mud
US-2021198552-A1 · Jul 1, 2021 · US
Emulsion preventer for completion brines
US-10537829-B2 · Jan 21, 2020 · US
Insulating annular fluid
US-10400155-B2 · Sep 3, 2019 · US
Recent patents
Latest publications not already listed above.
High temperature viscosifier for insulating packer fluids
US-10337289-B2 · Jul 2, 2019 · US
Colloidal silica and polymer system for insulating packer fluids
US-10273400-B2 · Apr 30, 2019 · US
Non-emulsifier for completion brines to prevent emulsion from forming
US-10214435-B2 · Feb 26, 2019 · US
Synthesis of organic-inorganic hybrid water soluble polymers in oil field applications
US-10030091-B2 · Jul 24, 2018 · US
Non-emulsifier for completion brines to prevent emulsion from forming
US-2017107127-A1 · Apr 20, 2017 · US
Emulsion preventer for completion brines
US-2017106311-A1 · Apr 20, 2017 · US
Internal breaker compositions for wellbore applications
US-2017088763-A1 · Mar 30, 2017 · US
Organic-inorganic hybrid polymer based fluids
US-2016177163-A1 · Jun 23, 2016 · US
Synthesis of organic-inorganic hybrid water soluble polymers in oil field applications
US-2016152753-A1 · Jun 2, 2016 · US
High temperature viscosifier for insulating packer fluids
US-2015322744-A1 · Nov 12, 2015 · US
Colloidal silica and polymer system for insulating packer fluids
US-2015299558-A1 · Oct 22, 2015 · US
Insulating annular fluid
US-2015152315-A1 · Jun 4, 2015 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Mi Llc | 14 |
| Schlumberger Technology Corp | 5 |
| M-I L L C | 3 |
| Cameron Int Corp | 2 |
| M I L L C [ | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| C09K8/502 | 8 |
| E21B36/003 | 6 |
| E21B21/003 | 5 |
| C09K8/34 | 5 |
| C02F2101/325 | 4 |