Product Details

Delivery Time:3-5 days
Certification:CE,FCC,MSDS

API square Kelly for oilfield using , Drilling String equipment

Description:

Beijing Ocean Renda\'s square drill kelly are made from AISI 4145H alloy bars that are quenched and tempered full length. A hardness range of 285 to 341 BHM and a minimum impact value of 54 Joules as per ASTM A 370 are maintained one inch bellow the surface at room temperature. To improve resistance to galling, all connections are phosphate-coated with an API thread compond. Each bar used to manufacture kellys has been examined with magnetic partice inspections and ultrsonic inspections.

Specifications:

Kelly size	63.5	76.2	88.9	108	108	133.4	133.4
2 1/2	3	3 1/2	4 1/4	4 1/4	5 1/4	5 1/4
Lengthdrive Section	LD Standard	11280	11280	11280	11280	11280	11280	11280
LD optional				15540	15540	15540	15540
Lengthoverall	L Standard	12190	12190	12190	12190	12190	12190	12190
L optional				16460	16460	16460	16460
Length Drive Section	DFL Across flate	63.5	76.2	88.9	108	108	133.4	133.4
DC Across cornere	83.3	100	115.1	141.3	141.3	175.4	175.4
DCC Across flate	82.55	98.43	122.7	139.7	139.7	171.45	171.45
RC Radlue	7.9	9.5	12.7	12.7	12.7	15.9	15.9
RCC Radlue	41.3	49.2	56.4	69.9	69.9	85.7	85.7
Wall thickness eccentric bore	11.43	11.43	11.43	12.07	12.07	15.88	15.88
Upper box connection	Thread size and style LF	Standard	6 5/8 REG	6 5/8 REG	6 5/8 REG	6 5/8 REG	6 5/8 REG	6 5/8 REG	6 5/8 REG
Optional	4 1/2 REG	4 1/2 REG	4 1/2 REG	4 1/2 REG	4 1/2 REG