Drill stem testing system

E - Fixed Constructions – 21 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

166/2

E21B 49/08 (2006.01) E21B 17/00 (2006.01) E21B 33/124 (2006.01) E21B 33/127 (2006.01) E21B 34/06 (2006.01) E21B 47/06 (2006.01)

Patent

CA 1249772

INVENTION: DRILL STEM TESTING SYSTEM INVENTOR: DAVID SASK ABSTRACT OF THE DISCLOSURE A drill stem testing system which does not require rotation or axial displacement of an associated drill string to actuate valves and pumps is described. The system includes a drill stem housing constructed in a number of sections which are interconnected with screw-type connections. The housing contains test-related devices such as a pump for inflating packers with wellbore fluids to isolate a test region, a packer deflation valve for exhausting fluids from the packers when testing is complete, a test flow valve for introducing wellbore test flows into the housing, and a pressure equalization valve for placing the test region in communication with external wellbore regions prior to packer deflation. Each of these devices is adapted for electric actuation and contacts an internal power line extending centrally through the interior of the housing. The power line is constructed in line segments which mate with one another when their associated drill stem housing sections are joined to provide a continuous power flow path. An external power line is extended from the surface through a supporting drill string to engage the internal power line. Power switching devices permit an operator to apply power selectively to each of the test-related devices to effect a testing procedure.

503613

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Drill stem testing system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drill stem testing system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drill stem testing system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1267362

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.