<p>A sliding sleeve casing tool apparatus (10) for use in a casing string in a wellbore comprises a housing (58), a communication port (64) and a sliding sleeve (70) to open and close port (64). A radioactive source (146) is attached to the housing (58), and the orientation of the source may be determined by use of a detector apparatus, such as a rotational gamma ray detector. The casing valve thus may be aligned with the fracture of a zone of interest in the well. A plurality of casing valves may be used, with at least one having a radioactive source. <IMAGE> <IMAGE> <IMAGE></p>
申请公布号
DE69406990(T2)
申请公布日期
1998.03.26
申请号
DE1994606990T
申请日期
1994.06.21
申请人
HALLIBURTON ENERGY SERVICES, INC., DUNCAN, OKLA., US
发明人
VENDITTO, JAMES J., SUGAR LAND, TEXAS 77479, US;STEPP, LEE WAYNE, COMANCHE, OKLAHOMA 73529, US;SZARKA, DAVID D., DUNCAN, OKLAHOMA 73533, US