[12] Patent
[11] Patent No.:GC0007491  
[45] Date of Publishing the Grant of the Patent: 30/Apr /2018                48/2018  
Number of the Decision to Grant the Patent:2018/125310
Date of the Decision to Grant the Patent:01/Apr/2018

[21] Application No.:GC 2011-19136

[22] Filing Date:23/8/2011

[30] Priority:

[33] State [32] Priority date [31] Priority No.
PCT
24/8/2010
PCT/US2010/046428

[72] Inventor: GALFORD, James E.

[73] Owner: Halliburton Energy Services,Inc, 10200 Player Boulevard, Houston , Houston, Texas 77072, USA

[74] Agent: Saba & Co. T.M.P

  

 

  

[51]IPC:
Int. Cl.: G01V 5/10 (2006.01)

[56] Cited Documents:

-US 5471057 A (SCHLUMBERGER LTD et al.) 28 November 1995
-US 2006033022 A1 (BAKER HUGHES INC) 16 February 2006
-CN 101501531 A (BAKER HUGHES INC) 5 August 2009
-US 4464569 A (SCHLUMBERGER TECHNOLOGY CORP) 7 August 1984
-WO 2010002796 A2 (PRAD RES & DEV LTD et al.) 7 January 2010
 
Examiner: Eng. Ahmed Saleem AlHinai

[54] METHOD AND SYSTEM OF DETERMINING ELEMENTAL CONTENT OF AN EARTH FORMATION
[57] Abstract: Determining elemental content of an earth formation. At least some of the illustrative embodiments are methods including: irradiating a portion of a formation that surrounds a borehole; counting gammas to obtain a spectrum of counted gammas; finding a solution to a system of equations based on the spectrum of counted gammas, which system of equations has a plurality of solutions, the solution being indicative of a plurality of weight percentages for a respective plurality of elements within the formation; determining whether the solution meets a predetermined constraint; repeating the finding and determining until a solution is found that is determined to meet the predetermined constraint; and producing an indication of the elemental content of the formation using the solution that meets the predetermined constraint.
No. of claims: 23     No. of figures: 15


 

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