5" HWDP selection

Conection NameNC-50 ( 4-1/2"IF) XT-50

Pipe Body Properties

OD (inch) 5 5ID (inch) 3 3Tensile strength (klbs) 691.2 691.2Torsional Strength (kft-lbs) 56.5 56.5Burst Strength (psi) 19250 19250Collapse Strength (psi) 17600 17600

Tool Joint Properties

T/J OD (inch) 6.625 6.625T/J ID (inch) 3.063 3Pin Tong Length (in) 24 24Box Tong Length (in) 24 24Tensile Strength (klbs) 1380.5 1562.6Torsional Strength (kft-lbs) 56.3 105.3Min M/U torque (kft-lbs) 28.15 35.1

Other Parameter Drift Dia (inch) 2.75 2.75Adjused Wt (lbs/ft) 52.34 49.77

Remarks:A) 5" x 3" HWDP with NC-50 Connection has more PPF compared to XT-50 connection.B) 5" x 3" HWDP with XT-50 Connection has more T/J TENSILE strength compared to NC-50 connection.C) 5" x 3" HWDP with XT-50 Connection has more T/J TORSIONAL strength compared to NC-50 connection.D) 5" x 3" HWDP with XT-50 Connection has more T/J MAKEUP TORQUE compared to NC-50 connection.

B) 5" x 3" HWDP with XT-50 Connection has more T/J TENSILE strength compared to NC-50 connection.C) 5" x 3" HWDP with XT-50 Connection has more T/J TORSIONAL strength compared to NC-50 connection.D) 5" x 3" HWDP with XT-50 Connection has more T/J MAKEUP TORQUE compared to NC-50 connection.

5" Drillpipe selection

Pipe Connection Name XT-50 GDPS HT-50

Pipe Body Properties

OD (inch) 5 5 5 5ID (inch) 4.276 4.276 4.276 4.276

Tensile strength (klbs) 712.1 712.1 712.1 712.1

Torsional Strength (kft-lbs) 74.1 74.1 74.1 74.1

Burst Strength (psi) 17,105 17,105 17,105 17,105 Collapse Strength (psi) 15,672 15,672 15,672 15,672

Connection Properties

T/J OD (inch) 6.625 6.5 6.625 6.625T/J ID (inch) 3.25 3.75 3.5 3.5

Pin Tong Length (in) 9 10 9 9Box Tong Length (in) 12 15 12 15

Tensile Strength (klbs) 1133.4 864.6 1110.2 1109.9

Torsional Strength (kft-lbs) 51.2 77 60.4 66.2

Min M/U torque (kft-lbs) 25.6 38.5 36 33.1

Other ParameterDrift Dia (inch) 3.125 3.625 3.375 3.375

Adjused Wt (lbs/ft) 19.5 19.5 19.5 19.5

Remarks:a) NC-50 connection offers Minimum Drift diameter with Max. T/J Tensile strength

b) XT-50 Connection offers Max. Drift Diameter with Max. T/J Makeup Torque and Max. T/J Torsional strength

c) GDPS and HT-50 connection offers same drift diameter with T/J Torsional strength of H-50 connection higher than GDPS.

d) Comparing between GDPS and HT-50, Min. M/U torque of GDPS is higher than HT-50

Comparing all these connection, The recomended connection is XT-50 as it offers:A) Higher Drift diameter of 3.625 inchB) Higher Min M/U torque of 38.5 kft-lbsC) Higher Connection Torsional strength of 77 kft-lbs

NC-50 ( 4-1/2" IF)

a) NC-50 connection offers Minimum Drift diameter with Max. T/J Tensile strength

b) XT-50 Connection offers Max. Drift Diameter with Max. T/J Makeup Torque and Max. T/J Torsional strength

c) GDPS and HT-50 connection offers same drift diameter with T/J Torsional strength of H-50 connection higher than GDPS.

d) Comparing between GDPS and HT-50, Min. M/U torque of GDPS is higher than HT-50

Comparing all these connection, The recomended connection is XT-50 as it offers:A) Higher Drift diameter of 3.625 inchB) Higher Min M/U torque of 38.5 kft-lbsC) Higher Connection Torsional strength of 77 kft-lbs