Formation testing tool

Claim 2

A formation testing tool, comprising in combination armored-hose means for connecting said tool with the surface including electrical conductors for supplying power downhole, a pump in said tool, electric motor means for driving said pump, a plurality of inflatable packers spaced longitudinally apart along said tool, first conduit means in said tool for connecting the outside of the tool between said packers to said hose for fluid connection to the surface, second conduit means in said tool for connecting said packers to said pump for applying fluid pressure to inflate the packers, valve means for controlling interconnections of said first and second conduit means with said hose and said pump for inflating said packers and drawing formation fluid from the annulus therebetween to be carried to the surface for testing, and means for controlling actuation of said valve means.

Claim 3

A formation testing tool according to claim 1, wherein said pump is a positive displacement type.

Claim 4

A formation testing tool according to claim 2, wherein said pump has a suction port and a discharge port, and said first and second conduit means comprise a plurality of conduits interconnecting said pump ports and said hose with said valve means.

Claim 5

A formation testing tool according to claim 3, wherein said valve means comprises a plurality of solenoid-actuated valves, and said means for controlling actuation of said valves means comprises circuit means including said hose electrical conductors and electronic means for controlling energization of said solenoids.

Claim 6

A formation testing tool, comprising in combination a reelable armored hose for making a fluid-flow connection with the surface from said tool, said hose having a plural-layered armor-wire outer covering, a coiled-spring inner wall stiffener and at least three separately insulated electrical conductors embedded between two layers of impervious plastic material forming the walls of said hose, a hose-coupling end on said tool for mechanically joining said armor-wire layers to said tool and for making a fluid-tight coupling with the interior of said tool, a housing section containing electronic control means, a first conduit in said tool being joined to said hose coupling, a three-phase AC pump motor mounted in said tool, a positive displacement pump mounted in said tool and having a suction port and a discharge port, reduction gear means for controlling said motor to said pump, second and third conduits in said tool being joined to said suction port and said discharge port, respectively, a plurality of solenoid-actuated valves, upper and lower inflatable packers on said tool separated longitudinally for straddling a producing zone, fourth and fifth conduits in said tool for applying fluid pressure to said packers, respectively, a Sixth conduit being connected to the outside of said tool between said packers, and a plurality of conduit connections interconnecting said valves with said sixth conduit whereby desired formation tests may be carried out.

Claim 7

A formation testing tool, comprising in combination a reelable armored hose for making a fluid-flow connection with the surface from said tool, said hose having a plural-layered armor-wire outer covering, a coiled-spring inner wall stiffener and at least three separately insulated electrical conductors embedded between two layers of impervious plastic material forming the walls of said hose, a hose-coupling end on said tool for mechanically joining said armor-wire layers to said tool and for making a fluid-tight coupling with the interior of said tool, a housing section containing electronic control means, a first conduit in said tool being joined to said hose coupling, a three-phase AC pump motor mounted in said tool, a positive displacement pump mounted in said tool and having a suction port and a discharge port, reduction gear means for controlling said motor to said pump, second and third conduits in said tool being joined to said suction port and said discharge port, respectively, a plurality of solenoid-actuated valves, upper and lower inflatable packers on said tool separated longitudinally for straddling a producing zone, fourth and fifth conduits in said tool for applying fluid pressure to said packers, respectively, a Sixth conduit being connected to the outside of said tool between said packers, and a plurality of conduit connections interconnecting said valves with said sixth conduit whereby desired formation tests may be carried out.