Method and apparatus for well bore work

Claim 2

a tubing adapted to be lowered tO sea bottom and into a well bore into the ground under the sea,

Claim 3

A reentry tool assembly, comprising: a body having first, second, and middle portions, walls, a longitudinal opening extending therethrough, and a port opening through the walls at the first portion, said longitudinal opening being of a first diameter at the first portion, a second diameter at the second portion and a third diameter at the middle portion, said third diameter being larger than said first and second diameters; a fluid diverting element having first and second ends, first, second, and middle portions, walls, a longitudinal opening extending through the element, and a port opening through the element walls at the middle portion, said element being slidably movable in the body between a first position at which the ports are in fluid communication one with the other and the second and middle portions of the longitudinal opening of the body are sealed and a second position at which the port and longitudinal opening of the element are in fluid communication with the second and middle portions of the longitudinal opening of the body, the port of the body is sealed, and the element is within the body; first means for sealing the second end of the fluid diverting element and passing fluid from the element port through the annulus between the element and the middle and second portions of the body at the second position of the element; and second means for releasably maintaining the element at the first position.

Claim 4

A reentry tool assembly, comprising: a body having first, second, and middle portions, walls, a longitudinal opening extending therethrough, and a port opening through the walls at the first portion, said longitudinal opening being of a first diameter at the first portion, a second diameter at the second portion and a third diameter at the middle portion, said third diameter being larger than said first and second diameters; a fluid diverting element having first and second ends, first, second, and middle portions, walls, a longitudinal opening extending through the element, and a port opening through the element walls at the middle portion, said element being slidably movable in the body between a first position at which the ports are in fluid communication one with the other and the second and middle portions of the longitudinal opening of the body are sealed and a second position at which the port and longitudinal opening of the element are in fluid communication with the second and middle portions of the longitudinal opening of the body, the port of the body is sealed, and the element is within the body; first means for sealing the second end of the fluid diverting element and passing fluid from the element port through the annulus between the element and the middle and second portions of the body at the second position of the element; and second means for releasably maintaining the element at the first position.

Claim 5

A reentry tool assembly, comprising: a body having first, second, and middle portions, walls, a longitudinal opening extending therethrough, and a port opening through the walls at the first portion, said longitudinal opening being of a first diameter at the first portion, a second diameter at the second portion and a third diameter at the middle portion, said third diameter being larger than said first and second diameters; a fluid diverting element having first and second ends, first, second, and middle portions, walls, a longitudinal opening extending through the element, and a port opening through the element walls at the middle portion, said element being slidably movable in the body between a first position at which the ports are in fluid communication one with the other and the second and middle portions of the longitudinal opening of the body are sealed and a second position at which the port and longitudinal opening of the element are in fluid communication with the second and middle portions of the longitudinal opening of the body, the port of the body is sealed, and the element is within the body; first means for sealing the second end of the fluid diverting element and passing fluid from the element port through the annulus between the element and the middle and second portions of the body at the second position of the element; and second means for releasably maintaining the element at the first position.

Claim 6

A reentry tool assembly, comprising: a body having first, second, and middle portions, walls, a longitudinal opening extending therethrough, and a port opening through the walls at the first portion, said longitudinal opening being of a first diameter at the first portion, a second diameter at the second portion and a third diameter at the middle portion, said third diameter being larger than said first and second diameters; a fluid diverting element having first and second ends, first, second, and middle portions, walls, a longitudinal opening extending through the element, and a port opening through the element walls at the middle portion, said element being slidably movable in the body between a first position at which the ports are in fluid communication one with the other and the second and middle portions of the longitudinal opening of the body are sealed and a second position at which the port and longitudinal opening of the element are in fluid communication with the second and middle portions of the longitudinal opening of the body, the port of the body is sealed, and the element is within the body; first means for sealing the second end of the fluid diverting element and passing fluid from the element port through the annulus between the element and the middle and second portions of the body at the second position of the element; and second means for releasably maintaining the element at the first position.

Claim 7

An apparatus, as set forth in claim 1, wherein the first means is a cap having first and second end portions, said first end portion being releasably connected to the second end of the fluid diverting element and said second end portion having a plurality of lugs extending outwardly therefrom which are of dimensions sufficient for preventing the cap from passing into the second portion of the body.

Claim 8

a lateral port at the lower end of said tubing adapted to discharge therefrom laterally a fluid under pressure from within said tubing,

Claim 9

a lateral port at the lower end of said tubing adapted to discharge therefrom laterally a fluid under pressure from within said tubing,

Claim 10

An apparatus, as set forth in claim 2, wherein there are at least four lugs positioned about the cap at substantially equal arcuate distances one from the other.

Claim 11

an opening at the bottom of said tubing adapted to discharge downwardly out the bottom thereof a fluid under pressure from within said tubing,

Claim 12

an opening at the bottom of said tubing adapted to discharge downwardly out the bottom thereof a fluid under pressure from within said tubing,

Claim 13

means in one position closing the said opening at the bottom of said tubing and while in said position permitting fluid to egress from said lateral port, said means in another position closing said lateral port and permitting fluid to egress from said opening at the bottom of said tubing and

Claim 14

means in one position closing the said opening at the bottom of said tubing and while in said position permitting fluid to egress from said lateral port, said means in another position closing said lateral port and permitting fluid to egress from said opening at the bottom of said tubing and

Claim 15

An apparatus, as set forth in claim 2, wherein the annulus defined by the walls of the body, the lugs, and the cap have a minimum total cross-sectional area at least as great as the total area of the port of the element.

Claim 16

An apparatus, as set forth in claim 1, wherein there are a plurality of ports formed on the middle portion of the element.

Claim 17

means actuated by an increase in the pressure in said tubing the move said first mentioned means from said one position to said another position.

Claim 18

means actuated by an increase in the pressure in said tubing the move said first mentioned means from said one position to said another position.

Claim 19

An apparatus, as set forth in claim 1, wherein an annular groove is formed about the outer surface of the element and opened into the element port.

Claim 20

An apparatus, as set forth in claim 1, wherein there are at least two annular sealing elements positioned in the annulus between the element and the body on opposed sides of the port of the body.

Claim 21

An apparatus, as set forth in claim 1, wherein the second means comprises a shear pin extending through the body walls at a location between the port of the body and a first end of the body and into the walls of the element at the first position of said element.

Claim 22

An apparatus, as set forth in claim 1, including a deformable ball; an annular seat extending into the longitudinal opening about an inner surface of the element at the first portion of the element, said annular seat having an inside diameter less than the diameter of the ball for seating of the ball thereon and passing the ball therethrough; and said second portion of the element having a length greater than about the diameter of the deformable ball.

Claim 25

An apparatus according to claim 10 wherein the first mentioned means includes a hollow, releasably-held, slidable, ported body adapted to receive therein from the tubing above said first mentioned means a resilient plugging element adapted to plug the hollow body against pressure in said tubing above said body, said body responsive to pressure increase in said tubing being released and sliding in said tubing to close said lateral port and open said opening at the bottom of said tubing.

Claim 28

A method according to claim 12 wherein the fluid diverting means is moved from its upper to its lower position by raising the fluid pressure on the fluid diverting means by blocking off said fluid diverting means at a point above the lateral port until the pressure is such that the fluid diverting means breaks loose from its secured upper position.