Casing Head Spools - Worldwide Oilfield Machine

Completion equipment packer part #1

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Elsayed Amer

 

This document contains information about Eng. El Sayed Amer, a petroleum engineer who has worked for Weatherford Drilling International and as a process and production engineer for SUCO and RWE DEA. It discusses production packers, which are subsurface tools used to provide a seal between the tubing and casing. Production packers can protect the casing from corrosion, provide better well control, isolate pay zones, and prevent fluid movement between zones. They are classified as either permanent or retrievable based on whether they can be removed from the well without destruction. The document focuses on the characteristics and advantages and disadvantages of permanent and retrievable production packers.

Destination:

The casing spools used to suspend and to seal the casings.

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The flanges and the passing inside diameters are designed according to API spec.6A.
On request, the side outlets of casing spools are provided with TBG or LP threads, or with threaded flanges.

Casing head spools are provided with a seat for secondary sealing. The lower flange can be provided with a second smaller supplementary ring gasket allowing the maximum pressure build-off with one stage.

About Material class and Temperature classification, see Appendix A.

 

Casing head spools

Bottom flange Top flange Slips size L D1 D2 H1 H2 d min * in x PSI in x PSI in in in in in in in 2,000
PSI WP 13 5/8 x 2,000 11 x 2,000 4 1/2 ÷ 7 17,7 22 20 2,94 2,81 9,92 3,000
PSI WP 13 5/8 x 3,000 11 x 3,000 4 1/2 ÷ 7 17,5 24 21,5 3,44 3,06 9,92 16 3/4 x 3,000 24,4 27,75 21,5 3,94 3,06 9,92 13 5/8 x 3,000 13 5/8 x
3,000 5 ÷ 10 3/4 17,7 24 24 3,44 3,44 12,39 16 3/4 x 3,000 17,7 27,75 24 3,94 3,44 12,39 5,000
PSI WP 11 x 3,000 11 x 5,000 4 1/2÷ 7 17,7 21,5 23 3,06 4,69 9,73 11 x 5,000 18,9 23 23 4,69 4,69 9,73 13 5/8 x 3,000 17,7 24 23 3,44 4,69 9,73 13 5/8 x 5,000 25,6 26,5 23 4,44 4,69 9,73 16 3/4 x 3,000 25,2 27,75 23 3,94 4,69 9,73 20 3/4 x 3,000 13 5/8 x 5,000 7 ÷ 10 3/4 26,6 33,75 26,5 4,75 4,44 9,73 10,000
PSI WP 11 x 10,000 9 x 10,000 4 1/2÷ 7 25,6 25,75 21,75 5,56 4,88 7,62 11 x 10,000 27,6 25,75 25,75 5,56 5,56 8,41 13 5/8 x 5,000 26 26,5 25,75 4,44 5,56 8,41 13 5/8 x 10,000 4 1/2 ÷ 7 5/8 27,6 30,25 25,75 6,62 5,56 8,41 13 5/8 x 5,000 13 5/8 x
10,000 7 ÷ 10 3/4 26 26,5 30,25 4,44 6,62 10,66 16 3/4 x 5,000 27,2 30,38 30,25 5,13 6,62 10,66 18 3/4 x 5,000 33,5 35,62 30,25 6,53 6,62 10,66 18 3/4 x 10,000 37,4 40,94 30,25 8,78 6,62 10,66 15,000
PSI WP 11 x 10,000 9 x 15,000 4 1/2 ÷ 5 1/2 29,1 25,75 25,5 5,56 5,75 7,41 11 x 15,000 11 x 15,000 4 1/2 ÷ 7 35,4 32 32 7,38 7,38 8,41

* &#; available value for maximum dimension of casing

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