Shock-Subs | Dynomax Drilling Tools

Industry leaders

Dynomax is a supplier of leading performance drilling products engineered for the oil and gas industry.

Whether performing through normal, deviated or deep wells, your drill string assembly must withstand extreme conditions including torsional vibration, axial oscillations/loads and drill string harmonics.

Dynomax Shock Subs are designed for a wide range of drilling environments and extreme conditions. Shock Subs improve the life and durability of your drill string assembly, improving online efficiency and reducing operating costs.

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DYNOMAX SHOCK SUBS E BROCHURE

CONFIG	TOOL OD [in]	TOOL ID [in]	LENGTH [ft]	WEIGHT [lb]	AXIAL LOAD CAPACITY [lb]	ABSOLUTE OVERPULL [lb]	ABSOLUTE TORSIONAL LOAD [ft-lb]	PUMP OPEN AREA [in²]	SPRING RATE [lb/in]	OPENING TRAVEL [in]	CLOSING TRAVEL [in]
2 ⅞"	2.88	0.88	4.5	74	8,400	130,600	3,100	2.49	8,000	0.89	0.90
3 ⅛"	3.13	1.00	5.2	106	10,700	207,500	5,000	2.80	9,000	1.01	1.01
3 ¾"	3.75	1.25	7.2	197	10,550	243,200	7,400	4.69	6,000	0.96	1.50
4 ¾"	4.75	1.75	8.1	365	29,650	323,100	12,200	7.22	14,000	0.96	1.81
5"	5	1.75	8.1	408	29,650	406,800	20,500	7.22	14,000	0.98	1.81
6 ½"	6.5	2.50	9.6	781	55,150	728,500	39,100	14.73	23,900	1.46	1.98
6 ½" LT	6.5	2.50	9.6	780	30,950	728,500	39,100	14.73	8,600	1.46	3.08
6 ¾"	6.75	2.50	9.6	835	55,150	728,500	39,400	14.73	23,900	1.46	1.98
6 ¾" LT	6.75	2.50	9.6	835	30,950	728,500	39,400	14.73	8,600	1.46	3.08
8"	8	2.81	11.2	1,340	86,850	725,300	49,900	24.58	28,000	1.46	2.65
8" LT	8	2.81	12.2	1,339	39,050	725,300	49,900	24.58	10,000	1.46	3.31
9 ½"	9.5	3.00	13.8	2,466	143,050	1,439,800	109,500	34.33	33,850	2.39	3.60
9 ½" LT	9.5	3.00	13.8	2,473	74,100	1,439,800	109,500	34.33	18,400	2.39	3.43
11 ¼"	11.25	3.50	15.3	3,796	192,000	2,776,300	160,100	43.96	36,350	2.36	4.51
12"	12	3.25	13.3	3,841	100,000	2,176,700	156,200	48.45	25,159	2	3.40
14"	14	3.25	15.0	5,934	140,450	3,288,400	184,500	66.37	27,000	3	4.43

CONFIG	TOOL OD [mm]	TOOL ID [mm]	LENGTH [m]	WEIGHT [kg]	AXIAL LOAD CAPACITY [daN]	ABSOLUTE OVERPULL [daN]	ABSOLUTE TORSIONAL LOAD [Nm]	PUMP OPEN AREA [cm²]	SPRING RATE [N/mm]	OPENING TRAVEL [mm]	CLOSING TRAVEL [mm]
2 ⅞"	73	22	1.37	34	3,737	58,094	4,203	16.1	1,401	23	23
3 ⅛"	80	25	1.58	48	4,760	92,301	6,779	18.1	1,576	26	26
3 ¾"	95	32	2.19	89	4,693	108,181	10,033	30.3	1,051	24	38
4 ¾"	121	44	2.47	166	13,189	143,722	16,541	46.6	2,452	24	46
5"	127	44	2.47	185	13,189	180,954	27,794	46.6	2,452	25	46
6 ½"	165	64	2.93	354	24,532	324,053	53,013	95	4,186	37	50
6 ½" LT	165	64	2.93	354	13,767	324,053	53,013	95	1,506	37	78
6 ¾"	171	64	2.93	379	24,532	324,053	53,419	95	4,186	37	50
6 ¾" LT	171	64	2.93	379	13,767	324,053	53,419	95	1,506	37	78
8"	203	71	3.41	608	38,633	322,630	67,656	158.6	4,904	37	67
8" LT	203	71	3.72	607	17,370	322,630	67,656	158.6	1,751	37	84
9 ½"	241	76	4.21	1119	63,632	640,455	148,462	221.5	5,928	61	91
9 ½" LT	241	76	4.21	1122	32,961	640,455	148,462	221.5	3,222	61	87
11 ¼"	286	89	4.66	1722	85,406	1,234,960	217,067	283.6	6,366	60	115
12"	305	83	4.05	1742	44,482	968,244	211,779	312.6	4,406	51	86
14"	356	83	4.57	2692	62,475	1,462,753	250,149	428.2	4,728	76	113