Well apparatus and method of placing apertured inserts in well pipe

Claim 2

In combination with well casing, a. a projection carried by the casing wall and extending outwardly therefrom, b. the projection containing through porting to intercommunicate the casing exterior and interior, thereby to pass well fluid therebetween via the projection, c. the projection being elongated in said outward direction and also in the direction of the casing length, in relation to the projection width, and d. said porting including elongated main ports extending in said outward direction and spaced apart in said casing length direction, and branch ports communicating the mainports with side surface portions of the projection.

Claim 3

The combination of claim 1 wherein the projection has an outwardly facing terminal that is hardened to an extent facilitating forcible penetration thereof through the casing wall.

Claim 4

The combination of claim 1 wherein the projection penetrates through said wall, and including a shoulder on the projection and facing toward the inner side of the casing wall for limiting outward displacement of the projection through said wall.

Claim 5

The combination of claim 3 including multiple projections as defined and penetrating the casing wall at spaced locations.

Claim 6

The combination of claim 3 including a tool in the casing transmitting force urging the projection in a direction away from a casing defined axis.

Claim 7

The combination of claim 5 wherein said tool comprises a gun.

Claim 8

The combination of claim 5 wherein said tool comprises a hydraulic actuator.

Claim 9

The combination of claim 5 wherein said tool comprises a swedge.

Claim 10

The combination of claim 1 including hardened cement at the outer side of the casing and into which the projection penetrates, the cement forming cracks to pass well fluid to said projection and porting therein.

Claim 11

The combination of claim 1 including the well formation into which the projection penetrates at the casing exterior, the formation being porous to pass well fluid to the projection and porting therein.

Claim 12

The combination of claim 1 including a washing tool in the casing flowing liquid from the casing interior to said porting for subsequent flow therethrough to wash a formation into which the projection penetrates. In combination with well casing, a. spread apart pipe sections at the inside of the casing and multiple projections carried by said sections, the projections penetrating outwardly through the casing at spaced locations, there being shoulders on the projections facing outwardly to limit outward displacement of the projections relative to said sections, and b. the projections containing through porting to intercommunicate the casing interior and exterior to pass well fluid therebetween via the projections.

Claim 15

The method of claim 13 wherein a cement formation eXtends exteriorly of the casing, and said displacement of the projection is carried out to effect projection penetration and fracturing of the cement formation thereby to facilitate well fluid flow via the fractures and projection to the casing interior.

Claim 16

The method of claim 13 including the step of flowing washing liquid from within the casing to the formation outside the casing via said porting in the projection and after completion of projection displacement as defined.

Claim 17

The method of claim 13 including the step of flowing well fluid from the formation to the casing interior via said porting in the projection and after completion of projection displacement as defined.