A WELL PERFORATING DEVICE

Details for Australian Patent Application No. 2002233132 (hide)

Owner XI'AN TONGYUAN PETROTECH CO., LTD

Inventors ZHANG, Xi; ZHANG, Tinghan

Pub. Number AU-A-2002233132

PCT Pub. Number WO2002/063133

Priority 01212979.8 06.02.01 CN; 01212980.1 06.02.01 CN; 01212981.X 06.02.01 CN

Filing date 6 February 2002

Wipo publication date 19 August 2002

International Classifications

E21B 043/116 Obtaining fluids from wells

Event Publications

13 February 2003 Application Open to Public Inspection

  Published as AU-A-2002233132

12 February 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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