Invention Grant
- Patent Title: Cleaning and removal of wax deposits in oil and gas wells using cationic polymers
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Application No.: US15219919Application Date: 2016-07-26
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Publication No.: US10745608B2Publication Date: 2020-08-18
- Inventor: Marcus D. Faust, Jr. , Tri T. Phan , Theophilus Edovia , Mathew Hancock
- Applicant: Ecolab USA Inc.
- Applicant Address: US MN St. Paul
- Assignee: Ecolab USA Inc.
- Current Assignee: Ecolab USA Inc.
- Current Assignee Address: US MN St. Paul
- Agency: Stinson LLP
- Main IPC: C09K8/524
- IPC: C09K8/524 ; C09K8/528 ; C09K8/532 ; E21B37/06 ; E21B43/12
Abstract:
The present invention generally relates to methods for removing deposits in an oil or gas well by contacting the annular fluid in a batch-wise method with an effective amount of a composition comprising a water-soluble copolymer. These methods are advantageous because they can be used as needed to improve well operation. The methods use a water-soluble copolymer comprised of an acrylamide monomer and one or more cationic monomer.
Public/Granted literature
- US20170029691A1 CLEANING AND REMOVAL OF WAX DEPOSITS IN OIL AND GAS WELLS USING CATIONIC POLYMERS Public/Granted day:2017-02-02
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