Well packer and testing apparatus

Patent · Tue Jul 30 04:00:00 EDT 1974

OSTI ID:6875497

Brown, C C; Cochran, C B

An apparatus for testing a well packer is described. The device has a supporting body anchored to a surrounding well conduit and on which is carried a seal member for forming a fluid-tight seal between the surrounding well conduit and the supporting packer body. The testing apparatus employs an inner well conduit concentrically disposed within the surrounding well conduit. A tubular mandrel is attached to the inner conduit for disposition within the supporting packer body to form an annular flow passage in fluid communication with the annulus between the 2 well conduits. Annular packoff means comprising a cylindrical sleeve member is carried by the mandrel for axial movement from a first position above the annular passage to a second position sealingly engaging this flow passage. The sleeve member may be mounted on the mandrel for limited axial movement relative thereto and may be initially prevented from axial movement relative to the mandrel by hold-down means. (20 claims)

• Assignee: Brown Oil Tools Inc.
• Patent Number(s): US 3826307
• OSTI ID: 6875497
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420206* -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
DESIGN
DRILLING EQUIPMENT
EQUIPMENT
PACKINGS
SEALS
TESTING
WELLS