A downhole tool for use in a wellbore that includes a mandrel made of a composite material, the mandrel having a distal end and a proximate end. The downhole tool has a metal slip having a slip body comprising at least one longitudinal hole, and a face surface configured with a set of mating grooves
A downhole tool for use in a wellbore that includes a mandrel made of a composite material, the mandrel having a distal end and a proximate end. The downhole tool has a metal slip having a slip body comprising at least one longitudinal hole, and a face surface configured with a set of mating grooves. The downhole tool has a lower sleeve disposed about the mandrel at the distal end, the lower sleeve having a set of pin inserts configured to engage the set of mating grooves.
대표청구항▼
1. A downhole tool for use in a wellbore, the downhole tool comprising: a mandrel made of a composite material, the mandrel having at least one set of threads, and further comprising a distal end and a proximate end; anda metal slip disposed about the mandrel, the metal slip comprising: a one-piece
1. A downhole tool for use in a wellbore, the downhole tool comprising: a mandrel made of a composite material, the mandrel having at least one set of threads, and further comprising a distal end and a proximate end; anda metal slip disposed about the mandrel, the metal slip comprising: a one-piece circular slip body comprising at least one longitudinal hole; anda face surface comprising a set of mating grooves;a composite one-piece slip disposed about the mandrel;a sleeve disposed about the mandrel at the distal end, the sleeve comprising a set of pin inserts configured to engage the set of mating grooves. 2. The downhole tool of claim 1 further comprising: a bearing plate comprising a second set of pin inserts, and a second metal slip comprising a second set of mating grooves. 3. The downhole tool of claim 1, wherein the set of mating grooves are disposed in the face surface in a symmetrical manner with respect to each other. 4. The downhole tool of claim 3, the metal slip further comprising columns of gripping elements configured with serrated teeth. 5. The downhole tool of claim 3, wherein the set of mating grooves comprises four mating grooves, wherein the set of pin inserts comprises four pin inserts, and wherein the downhole tool is configured as a frac plug. 6. The downhole tool of claim 5, wherein the composite material comprises filament wound composite material, and wherein the threads are shear threads or rounded threads. 7. The downhole tool of claim 1, wherein the distal end comprises a first outer diameter, and the proximate end comprises a second outer diameter, and wherein the first outer diameter is smaller than the second outer diameter. 8. A downhole tool for use in a wellbore, the downhole tool comprising: a mandrel made of filament wound material, the mandrel comprising a distal end, and a proximate;a metal slip disposed about the mandrel, the metal slip comprising: a one-piece circular slip body; anda face surface comprising a set of at least three mating grooves;a sleeve disposed on the mandrel at the distal end, the sleeve comprising a set of pin inserts corresponding to the number of mating grooves, each pin insert configured to engage a corresponding mating groove;a sealing element;a composite one-piece slip; anda first cone disposed around the mandrel, and engaged with the composite one-piece slip;and a bearing plate disposed around the mandrel, and positioned proximate to the first cone. 9. The downhole tool of claim 8, wherein the set of pin inserts are disposed in a symmetrical manner with respect to each other, and wherein the set of mating grooves are disposed in a symmetrical manner with respect to each other. 10. The downhole tool of claim 9, the downhole tool further comprising: a composite member disposed around the mandrel, the composite member having a deformable portion with one or more grooves disposed therein; anda composite one-piece slip also disposed around the mandrel. 11. The downhole tool of claim 8, the downhole tool further comprising: a second metal slip; anda bearing plate comprising a second set of pin inserts configured to engage the second metal slip. 12. A downhole tool for use in a wellbore, the downhole tool comprising: a mandrel made of filament wound material, the mandrel having at least one set of threads, and further comprising a distal end with a first outer diameter and a proximate end with a second outer diameter; anda metal slip disposed about the mandrel, the metal slip comprising: a one-piece circular slip body; anda face surface comprising a set of mating grooves;a composite one-piece slip disposed about the mandrel;a lower sleeve disposed about and threadingly engaged with the mandrel at the distal end, the lower sleeve comprising a set of pin inserts configured to engage the set of mating grooves, wherein the first outer diameter is smaller than the second outer diameter. 13. The downhole tool of claim 12, wherein the tool further comprises a composite member disposed around the mandrel, the composite member having a deformable portion with one or more grooves disposed therein, and wherein the set of mating grooves are disposed in the face surface in a symmetrical manner with respect to each other. 14. The downhole tool of claim 12, wherein the set of mating grooves comprises four mating grooves, wherein the set of pin inserts comprises four pin inserts, and wherein the downhole tool is configured as a frac plug. 15. The downhole tool of claim 12, wherein the threads are shear threads or rounded threads. 16. The downhole tool of claim 12, the downhole tool further comprising: a composite member disposed around the mandrel, the composite member having a deformable portion with one or more grooves disposed therein,wherein the metal slip further comprises columns of gripping elements configured with serrated teeth. 17. The downhole tool of claim 12, the downhole tool further comprising: a sealing element;a first cone disposed around the mandrel, and engaged with the composite one-piece slip;and a bearing plate disposed around the mandrel, and positioned proximate to the first cone. 18. The downhole tool of claim 12, the metal slip further comprising: a plurality of longitudinal holes configured to have buoyant material disposed therein; and gripping elements configured with serrated teeth. 19. The downhole tool of claim 12, wherein the metal slip is heat treated a by way of induction resulting in an outer surface Rockwell hardness in the range of about 40 to about 60, and an inner surface Rockwell hardness in the range of about 10 to about 25.
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