[12] Patent
[11] Patent No.:GC0007634  
[45] Date of Publishing the Grant of the Patent: 30/Apr /2018                48/2018  
Number of the Decision to Grant the Patent:2018/126279
Date of the Decision to Grant the Patent:22/Apr/2018

[21] Application No.:GC 2013-26129

[22] Filing Date:24/12/2013

[30] Priority:

[33] State [32] Priority date [31] Priority No.
PCT
28/12/2012
PCT/US2012/072190

[72] Inventors:1- GAO, Li،2- PELLETIER, Michael T.،3- CHENG, Arthur،4- COOPER, Paul،5- RAJASINGAM, Thurairajasingam

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

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

  

 

  

[51]IPC:
Int. Cl.: E21B 47/00; G01N 29/024, 29/24 (2006.01)

[56] Cited Documents:

-US 8321133 B2 (HSU et al.) 27 November 2012
-US 2007-0256828 A1 (BIRCHAK et al.) 08 November 2007
-US 7150317 B2 (BAROLAK et al.) 19 December 2006
-US 5430259 A (WARNER, KEVIN L.) 04 July 1995
-US 6354146 Bl (BIRCHAK et al.) 12 March 2002
 
Examiner: Eng. Imad A. AlAhaidib

[54] METHOD AND APPARATUS FOR THE DOWNHOLE IN-SITU DETERMINATION OF THE SPEED OF SOUND IN A FORMATION FLUID
[57] Abstract: An apparatus and a method for measuring a speed of sound in a fluid in a well bore may include a frame adapted to receive the fluid there through are provided. The apparatus includes an acoustic source mounted on the frame; an acoustic detector to measure a signal propagating through the fluid, the acoustic detector disposed proximate the frame at a known distance from the acoustic source; and a test circuit adapted to synchronize the acoustic detector with a signal propagating through the frame. A method to determine physical properties of a fluid in a geological formation including a shear wave anisotropy in the geological formation and the formation composition using the fluid density and the fluid speed of sound is also provided.
No. of claims: 8     No. of figures: 11


 

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