G - Physics – 01 – L
Patent
G - Physics
01
L
73/69
G01L 9/00 (2006.01) E21B 23/00 (2006.01) E21B 47/06 (2006.01) E21B 49/08 (2006.01)
Patent
CA 1189726
Abstract of the Disclosure A downhole condition sensing apparatus and method which pro- vide a surface readout of a sensed condition includes and utili- zes a downhole tool having a housing defined by a control section, a gauge section, an accumulator section, and a tester section. The control section includes electronic circuit ele- ments for controlling the operation of the tool and for conveying electrical signals to the surface. The gauge section includes a pressure sensing element for sensing pressures in a well in which the tool is located and for converting the sensed pressures into corresponding electrical signals. The accumulator section inclu- des a pressurizing fluid chamber, a driving fluid chamber, and an accumulator chamber. A pressurized driving fluid contained in the driving fluid chamber for controlling a valve located in the tester section is switchably communicated to the tester section by means of a solenoid valve located in the accumulator section. The valve of the tester section is moved between an open position and a closed position by the driving fluid from the driving fluid chamber acting on one of two surfaces of the valve. When the valve is open, the well is allowed to flow through openings formed in the tester section; and when the valve is closed, fluid is prevented from flowing between the openings of the tester sec- tion.
415350
Company Halliburton
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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