Pressure Opened Circulating Sleeve (Patent No: 907507)

Inventor: Amoco Canada Petroleum Company

Location: Calgary

Comments: N/A

Description: THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:

1. A well completion system for use with pump down tools in a well bore which comprises:
an upper packer set in a well bore; a lower packer set in said well bore; a first string of tubing extending from the surface to below said upper packer; a second string of tubing extending from the surface to below said lower packer; a third string of tubing extending from the surface to below said lower packer; a sidewall valve connected into said third tubular string and positioned between said upper packer and said lower packer; means for closing said third tubing string below said sidewall valve.

2. A system as defined in Claim 1 in which said sidewall valve comprises:
a first tubular housing having a port in the wall thereof, said housing being adapted to be connected into said drill string as a part thereof:; outer valve means surrounding said housing and of a character to open and close said port of said first tubular housing; an insertable tool having a tubular member and a second port therein; a seat in said tubing for said insertable tool, when said insertable tool is seated on said seat said second port is aligned with said first port; inner valve means interior said tubular member of said insertable tool and operable to open and close the said second port.