Cross-over Sub (Rotary Sub) manufacturer from China Mudanjiang Petroleum Tool.s Co.,Ltd

Payment Terms:	T/T,L/C,D/P
Place of Origin:	Heilongjiang, China (Mainland)


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Product Detail

Means of Transport: ocean land airline

Brand Name: MSG

Packing: wooden cases

drilling tools: 1

Cross-over subs may be used in applications when it is necessary to have frequent disconnection points.

Our company manufactures a complete line of rotary subs. Each sub provides a connection between joints of different size or type of drilling, washover, or tubing strings. Cross-over subs may be used in applications when it is necessary to have frequent disconnection points. All Cross-over subs are manufactured from high-alloy, heat treated steel and thread to the customer's specifications. Subs can be ordered pin-to-pin, box-to-box, or box-to-pin and are available in lengths up to 96 inches. Right or Left-hand threads can be provided.

There are A type (same diameter),B type (different diameter) and C type (levoform).

Denotation	Upper Connection Part	Lower ConnectionPart	Type
Kelly Cross-overJoint	Kelly	Drill pipe joint	A or B
Drill Pipe Joint	Drill Pipe Joint	Drill Pipe Joint	A or B
Crossover Joint	Kelly	Drill Collar	A or B
Drill CollarJoint	Drill Collar	Drill Collar	A or B
Bit Joint	Drill Collar	Bit	A or B
Swivel Joint	Swivel Lower Joint	Kelly	C
Fish Joint	Kelly	Drill Pipe Joint	C
Fish Joint	Drill Pipe Joint	Fishing Tool	C

External Thread					Internal Thread
Thread Code Name	Tapering	Large End Diameter	Small End Diameter	I.D. (mm)	Thread Code Name	Tapering	LargeEnd Diameter	Small End Diameter	I.D. (mm)
1.900TBG	1:16	48.3	47	40.3	1.900TBG	1:16	55.9	66.1	49.9
2-3/8TBG	1:16	60.3	59	40.3	2-3/8TBG	1:16	73.0	58.1	61.9
2-7/8TBG	1:16	73	70	62	2-7/8TBG	1:16	88.9	70.8	74.6
3-1/2TBG	1:16	88.9	86	76	3-1/2TBG	1:16	108.0	86.7	90.5
4TBG	1:16	101.6	98	88	4TBG	1:16	120.6	98.5	103.2
4-1/2TBG	1:16	114.3	111	100.3	4-1/2TBG	1:16	132.1	111.2	115.9
4-1/2BCSG	1:16	114.7	112	100	1.900UPTBG	1:16	63.5	51.0	54.8
1.900UPTBG	1:16	53.2	51	40.3	2-3/8UPTBG	1:16	77.8	62.8	67.5
2-3/8UPTBG	1:16	65.9	64	50.3	2-7/8UPTBG	1:16	93.2	75.5	80.2
2-7/8UPTBG	1:16	78.6	76	62	3-1/2UPTBG	1:16	114.3	92.2	96.9
3-1/2UPTBG	1:16	95.2	92	75.9	4UPTBG	1:16	127.0	104.9	109.6
4UPTBG	1:16	108.0	104	88.6	4-1/2UPTBG	1:16	141.3	117.6	122.3
4-1/2UPTBG	1:16	120.6	117	100.3