Hydraulic running and release tool with mechanical emergency release

Patent · Tue May 28 04:00:00 EDT 1991

OSTI ID:5119223

Baker, S F

This patent describes a setting tool for connection in a well string to position a tubular member in a well bore. It comprises: a mandrel adapted to be connected to the well string; an outer sleeve surrounding the mandrel and releasably secured thereto; a latch nut releasably connected to the outer sleeve; piston means sealingly engaging the mandrel; shear means releasably securing the piston to the latch nut to maintain the latch nut releasably connected to the tubular member; the mandrel having port means for conducting fluid pressure from the well string to release the piston means from and the latch nut; cooperating engageable surfaces on the piston and latch nut to reengage them together after the piston moves a predetermined longitudinal distance relative to the latch nut; and additional cooperating engageable surfaces on the latch nut and the outer sleeve which are engageable when the piston and engaged latch nut are moved a predetermined additional longitudinal distance by fluid pressure to secure the engaged piston and latch nut with the outer sleeve for retrieval along with the mandrel from the well bore.

• Assignee: Texas Iron Works, Inc., Houston, TX (USA)
• Patent Number(s): US 5018582; A
• Application Number: PPN: US 7-533029
• OSTI ID: 5119223
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
42 ENGINEERING
422000 -- Engineering-- Mining & Underground Engineering-- (1980-)
440400 -- Well Logging Instrumentation
47 OTHER INSTRUMENTATION
BOREHOLES
CAVITIES
CONTROL EQUIPMENT
DRILL PIPES
DRILLING EQUIPMENT
DRILLING FLUIDS
EMERGENCY PLANS
EQUIPMENT
EXPLOSIONS
FLOW REGULATORS
FLUIDS
HYDRAULIC TURBINES
MACHINERY
MANDREL OPERATION
NUCLEAR EXPLOSIONS
PIPES
POSITIONING
PRESSURE GRADIENTS
SAFETY
TURBINES
TURBOMACHINERY
UNDERGROUND EXPLOSIONS
WELL CASINGS