[12] Patent
[11] Patent No.:GC0004589  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2016                32/2016  
Number of the Decision to Grant the Patent:2016/90372
Date of the Decision to Grant the Patent:29/Dec/2016

[21] Application No.:GC 2012-23176

[22] Filing Date:22/12/2012

[30] Priority:

[33] State [32] Priority date [31] Priority No.
US
23/12/2011
61/579,914

[72] Inventors:1- Mohammad Nasser Al-Dahlan،2- Khalid Abdullah. Al-Dossary،3- Abdullah Mohammed Al-Harith

[73] Owner: SAUDI ARABIAN OIL COMPANY, 1 Eastern Avenue, 31311 , Dhahran , Saudi Arabia

[74] Agent: Suleiman I. Al-Ammar Law Office

  

 

  

[51]IPC:
Int. Cl.: C09K 8/60, C09K 8/72, C09K 8/84 (2006.01)

[56] Cited Documents:

-US 2011/220360 A1 (LINDVIG THOMAS [US] ET AL) 15 September 2011
-EP 0 654 582 A1 (HALLIBURTON CO [US] HALLIBURTON ENERGY SERV INC [US]) 24 May 1995
-US 2005/000694 A1 (DALRYMPLE ELDON D [US] ET AL) 06 January 2005
-US 4 056 146 A (HALL BOBBY E) 01 November 1977
 
Examiner: Eng. Mohammed A. AlJaafar

[54] METHOD OF USING A NON-ACIDIC STIMULATION FLUID IN HIGH TEMPERATURE SANDSTONE FORMATIONS
[57] Abstract: A three step method of using a non-acidic stimulation fluid in high temperature sandstone formation is provided. The method consists of using a preflush brine, sodium hydroxide solution, and an overflush brine.
No. of claims: 19


 

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