Trinh K Tran

US Patent:

D608454, Jan 19, 2010

Filed:

Feb 4, 2009

Appl. No.:

29/331919

Inventors:

Thuy Xuan Mai - Houston TX, US
Trinh Dang Tran - Houston TX, US

International Classification:

2404

US Classification:

D24213, D24204

US Patent:

20200063021, Feb 27, 2020

Filed:

Aug 29, 2019

Appl. No.:

16/555087

Inventors:

- St. Paul MN, US
Kirk E. Wells - Sugar Land TX, US
Brian Mueller - Sugar Land TX, US
Trinh Tran - Manvel TX, US
Pablo Munoz - Katy TX, US

International Classification:

C09K 8/68
C09K 8/88
C09K 8/90

Abstract:

Disclosed herein are compositions and methods for delaying crosslinking in injectable compositions for hydraulic fracturing and related applications. The compositions and methods are effective in injectable compositions comprising or substantially excluding dissolved reactive species. The compositions and methods provide delayed crosslinking at high temperatures and pressures, such as those encountered by hydraulic fracturing compositions injected into subterranean environments. Compositions include injectable solutions comprising a competing agent that is the reaction product of a dialdehyde having 2 to 4 carbon atoms with a non-polymeric cis-hydroxyl compound. Also provided are methods of making and using delayed-crosslinking compositions comprising crosslinker compositions containing zirconium complexes and the competing agents.

US Patent:

20180016488, Jan 18, 2018

Filed:

Jul 13, 2017

Appl. No.:

15/649129

Inventors:

- St. Paul MN, US
Kirk E. Wells - Sugar Land TX, US
Trinh Tran - Manvel TX, US
Pablo Munoz - Katy TX, US

International Classification:

C09K 8/68
C09K 8/90
E21B 37/06
C09K 8/528
C09K 8/60
E21B 33/138

Abstract:

Disclosed herein are compositions and methods for delaying crosslinking of aqueous crosslinkable polymers such as polysaccharides in injectable compositions for hydraulic fracturing and related applications. The compositions and methods provide delayed crosslinking at high temperatures and pressures, such as those encountered by hydraulic fracturing compositions injected into subterranean environments. Compositions include injectable solutions comprising a competing agent that is a reaction product of a dialdehyde having 2 to 4 carbon atoms with a non-polymeric cis-hydroxyl compound. Provided are methods of making and using delayed-crosslinking compositions comprising crosslinker compositions containing zirconium complexes and the competing agents.