Drill Pipe Slips/Rotary Slips

Main Technical Features

● Drill pipe slip is a kind of handling tools specially used to handle drill pipe during the oil well

drilling operations for the exploration of petroleum and natural gas. It is an essential tool for

coupling and uncoupling.

● There are SD type, B Type, DU type especially for drill pipe slips.

● Type SD Drill Pipe Slips cab handle drill pipes from 2 3/8 to 7 in (60.3 to 177.8mm).According

to gripping length, SD slips are classified as Type Short (SDS) for shallow hole drilling, Medium

(SDML) for medium depth drilling, Extra Long (SDXL) for deep drilling.

● Type B Drill Pipe Slips consist of B Short, B Long, and X Long. The unique torque transmitting

design can directly transfer all torque to the slips, thus avoids the abrasion and prolongs slips

service life.

● Type DU Drill Pipe Slips include DU, DUL, SDU. They are with large handling range and light

weight. SDU slips have larger contacting areas on the taper and higher resistance strength.

● All drill pipe slips are designed and manufactured according to API Spec 7K Specification for

drilling and well servicing equipment.

SD Type Drill Pipe Slips

Model	Size of Slip Bodies (in)		3 1/2			41/2			5
SDS	DP OD	in	23/8	27/8	31/2	31/2	4	41/2	4	41/2	5
	DP OD	mm	60.3	73.0	88.9	88.9	101.6	114.3	101.6	114.3	127
	Weight	kg	53.1	50.3	48.5	64.9	61.7	57.6
	Weight	lb	117	111	107	143	136	127
SDML	DP OD	in	23/8	27/8	31/2	31/2	4	41/2	4	41/2	5
	DP OD	mm	60.3	73.0	88.9	88.9	101.6	114.3	101.6	114.3	127
	Weight	kg	87.8	85.3	81.6	94	90.3	85.3	92.5	88.9	84
	Weight	lb	193	188	180	207	199	188	204	196	185
SDXL	DP OD	in				31/2	4	41/2	4	41/2	5
	DP OD	mm				88.9	101.6	114.3	101.6	114.3	127
	Weight	kg				103.9	99.3	93	107.5	103	96.6
	Weight	lb				229	219	205	237	227	213
Model	Sizes of Slip Bodies(in)		5 1/2			5 7/8			7
SDML	DP OD	in	41/2	5	51/2	53/4	57/8		57/8	65/8	7
	DP OD	mm	114.3	127	139.7
	Weight	kg	139.7	84	82.1
	Weight	lb	200	185	181
SDXL	DP OD	in	41/2	5	51/2	5.3/4	5.7/8		5.7/8	6.5/8	7
	DP OD	mm	114.3	127	139.7	146.1	149.2		149.2	168.3	177.8
	Weight	kg	106.1	101.5	95.3
	Weight	lb	234	224	210

B Type Drill Pipe Slip

Model	Size of Slip bodies		41/2					51/2
B Short	DP OD	in	23/8	27/8	31/2	4	41/2
B Short	DP OD	mm	60.3	73.0	88.9	101.6	114.3
B Long	DP OD	in	23/8	27/8	31/2	4	41/2	4	41/2	5	51/2
B Long	DP OD	mm	60.3	73.0	88.9	101.6	114.3	101.6	114.3	127	139.7
Model	Size of Slip bodies		41/2					5
X Long	DP OD	in			31/2	4	41/2	4	41/2	5

DU Type Drill Pipe Slips