[12] Patent
[11] Patent No.:GC0007502  
[45] Date of Publishing the Grant of the Patent: 30/Apr /2018                48/2018  
Number of the Decision to Grant the Patent:2018/125348
Date of the Decision to Grant the Patent:03/Apr/2018

[21] Application No.:GC 2013-23265

[22] Filing Date:2/1/2013

[30] Priority:

[33] State [32] Priority date [31] Priority No.
US
4/1/2012
61/583,066

[72] Inventor: Scott David Fraser

[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.: E21B21/10; E21B47/12 (2006.01)

[56] Cited Documents:

-WO 2007/021274 Al (WELLDYNAMICS INC [US] ; TI PS TIMOTHY R [US] ; SMITHSON MITCHELL c[US]) 22 February 2007
-WO 2008/063072 Al (STATOI LHYDRO ASA [NO] ; DI ROAL ROLF [NO]) 29 May 2008
-WO 98/42948 Al (DRESSER IND [US]) 01 October 1998
-US 2005/011645 Al (ARONSTAM PETER [US] ET AL) 20 January 2005
 
Examiner: Eng. Imad A. AlAhaidib

[54] ACTIVE DRILLING MEASUREMENT AND CONTROL SYSTEM FOR EXTENDED REACH AND COMPLEX WELLS
[57] Abstract: A dynamically controlled drill string having a communications sub, a circulation sub and a measurement sub. The communications sub is operable to receive a wireless signals and retransmit the signals wirelessly. The measurement sub is operable to detect a downhole condition and transmit wirelessly a corresponding data signal. The circulation sub is operable to selectively permit fluid communication between the interior fluid conduit and the exterior of the dynamically controlled drill string at the circulation sub. The circulation sub is operable to selectively permit fluid communication through the internal fluid conduit at the circulation sub. A method for using the dynamically controlled drill string in a well bore. The method includes the steps of introducing the dynamically controlled drill string into the well bore and introducing fluid operable to modify detected downhole conditions into the well bore.
No. of claims: 24     No. of figures: 2


 

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