Triconi

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Disponiamo di una vasta gamma di PDC e di triconi a denti ed a inserti sia nuovi che rigenerati adatti per perforazioni ad aria o con fluidi.

Vengono catalogati in base ai codici IADC (IADC codes: International Association of Drilling Contractors) per le diverse applicazioni.

La lunghezza e il profilo dei denti e degli inserti vanno a determinare la velocità di avanzamento, lo scarico dei materiali e la resistenza al consumo del singolo scalpello.

Entrambi possono essere forniti con cuscinetti aperti o sigillati, con e senza raffreddamento.

I triconi rigenerati invece non possono essere identificati con uno IADC cod preciso, ma vengono classificati in base al tipo e alle caratteristiche dello scalpello e al grado di consumo.

tabella triconi denti/inserti

diametri disponibili Pollici	diametri disponibili Mm	filettature api regular	peso kg
2	50.8	N-ROD A THD	2
2 ^1/4	57.15	N-ROD A THD	2
2 ^1/2	63.5	N-ROD A THD	2
2 ^6/8	66.68	N-ROD A THD	2
2 ^3/4	69.85	N-ROD A THD	2
2 ^7/8	73.03	N-ROD A THD	2
3	76.2	N-ROD A THD	3
3 ^1/8	79.2	N-ROD A THD	3
3 ^1/4	82.55	N-ROD A THD	3
3 ^3/8	85.73	N-ROD A THD	3
3 ^1/2	88.9	2 ^3/8	3
3 ^5/8	92.08	2 ^3/8	4
3 ^3/4	95.25	2 ^3/8	4
3 ^7/8	98.43	2 ^3/8	5
4	101.6	2 ^3/8	5
4 ^1/8	104.8	2 ^3/8	5
4 ^1/4	108	2 ^3/8	7
4 ^3/8	111.1	2 ^3/8	7
4 ^1/2	114.3	2 ^7/8	7
4 ^5/8	117.5	2 ^7/8	9
4 ^3/4	120.7	2 ^7/8	9
4 ^7/8	123.8	2 ^7/8	9
5	127	2 ^7/8	13
5 ^1/8	130.2	2 ^7/8	13
5 ^1/4	133.4	2 ^7/8	13
5 ^3/8	136.5	2 ^7/8	13
5 ^1/2	139.7	3 ^1/2	13
5 ^5/8	142.9	3 ^1/2	13
5 ^3/4	146.1	3 ^1/2	13
5 ^7/8	149.2	3 ^1/2	16
6	152.4	3 ^1/2	16
6 ^1/8	155.6	3 ^1/2	20
6 ^1/4	158.8	3 ^1/2	20
6 ^3/8	161.9	3 ^1/2	20
6 ^1/2	165.3	3 ^1/2	20
6 ^5/8	168.3	3 ^1/2	20
6 ^3/4	171.5	3 ^1/2	20
6 ^7/8	174.6	3 ^1/2	20
7	177.8	3 ^1/2	20
7 ^1/8	181	3 ^1/2	32
7 ^1/4	184.2	3 ^1/2	32
7 ^3/8	187.3	3 ^1/2	32
7 ^1/2	190.5	4 ^1/2	36
7 ^5/8	193.7	4 ^1/2	36
7 ^3/4	196.9	4 ^1/2	36
7 ^7/8	200	4 ^1/2	36
8	203.2	4 ^1/2	44
8 ^1/8	206.4	4 ^1/2	44
8 ^1/4	210	4 ^1/2	44
8 ^3/8	212.7	4 ^1/2	44
8 ^1/2	215.9	4 ^1/2	44
8 ^5/8	219.1	4 ^1/2	44
8 ^3/4	222.3	4 ^1/2	44
8 ^7/8	225.4	4 ^1/2	44
9	228.6	4 ^1/2	44
9 ^1/8	231.8	6 ^5/8	53
9 ^1/4	235	6 ^5/8	53
9 ^3/8	238.1	6 ^5/8	53
9 ^1/2	241.3	6 ^5/8	53
9 ^5/8	244.5	6 ^5/8	56
9 ^3/4	247.7	6 ^5/8	56
9 ^7/8	250.8	6 ^5/8	56
10	254	6 ^5/8	73
10 ^1/8	257.2	6 ^5/8	73
10 ^1/4	260.4	6 ^5/8	73
10 ^3/8	263.5	6 ^5/8	73
10 ^1/2	266.7	6 ^5/8	73
10 ^5/8	269.9	6 ^5/8	73
10 ^3/4	273.1	6 ^5/8	73
10 ^7/8	276.2	6 ^5/8	73
11	279.4	6 ^5/8	77
11 ^1/8	282.6	6 ^5/8	77
11 ^1/4	285.8	6 ^5/8	77
11 ^3/8	288.9	6 ^5/8	77
11 ^1/2	292.1	6 ^5/8	77
11 ^5/8	295.3	6 ^5/8	77
11 ^3/4	298.5	6 ^5/8	77
11 ^7/8	301.6	6 ^5/8	77
12	304.8	6 ^5/8	83
12 ^1/8	308	6 ^5/8	83
12 ^1/4	311.2	6 ^5/8	83
12 ^3/8	314.3	6 ^5/8	83
12 ^1/2	317.5	6 ^5/8	83
12 ^5/8	320.1	6 ^5/8	83
12 ^3/4	323.9	6 ^5/8	83
13	330.2	6 ^5/8	110
13 ^1/8	333.4	6 ^5/8	110
13 ^1/4	336.6	6 ^5/8	110
13 ^3/8	339.7	6 ^5/8	110
13 ^1/2	342.9	6 ^5/8	120
13 ^5/8	346.1	6 ^5/8	120
13 ^3/4	349.3	6 ^5/8	120
13 ^7/8	352.2	6 ^5/8	120
14	355.6	6 ^5/8	131
14 ^1/8	358.8	6 ^5/8	131
14 ^1/4	362.2	6 ^5/8	131
14 ^3/8	365.1	6 ^5/8	131
14 ^1/2	368.3	6 ^5/8	131
14 ^5/8	371.5	6 ^5/8	131
14 ^3/4	374.7	6 ^5/8	131
14 ^7/8	377.8	6 ^5/8	131
15	381	6 ^5/8	131
15 ^1/8	384.2	6 ^5/8	145
15 ^1/4	387.4	6 ^5/8	145
15 ^3/8	390.5	6 ^5/8	145
15 ^1/2	393.7	6 ^5/8	145
15 ^5/8	396.9	6 ^5/8	145
15 ^3/4	400.1	6 ^5/8	145
15 ^7/8	403.2	6 ^5/8	145
16	406.4	6 ^5/8	185
16 ^1/8	409.6	6 ^5/8	185
16 ^1/4	412.2	6 ^5/8	185
16 ^3/8	415.9	6 ^5/8	185
16 ^1/2	419.1	6 ^5/8	185
16 ^5/8	422.3	6 ^5/8	185
16 ^3/4	425.5	6 ^5/8	185
16 ^7/8	428.6	6 ^5/8	185
17	431.8	6 ^5/8	235
17 ^1/8	435	6 ^5/8	235
17 ^1/4	438.2	6 ^5/8	235
17 ^3/8	441.3	6 ^5/8	235
17 ^1/2	444.5	6 ^5/8 o 7 ^5/8	235
17 ^5/8	447.7	6 ^5/8 o 7 ^5/8	235
17 ^3/4	450.9	6 ^5/8 o 7 ^5/8	235
17 ^7/8	454	6 ^5/8 o 7 ^5/8	235
18	457.2	6 ^5/8 o 7 ^5/8	290
18 ^1/8	460.4	6 ^5/8 o 7 ^5/8	290
18 ^1/4	463.6	6 ^5/8 o 7 ^5/8	290
18 ^3/8	466.7	6 ^5/8 o 7 ^5/8	290
18 ^1/2	469.9	6 ^5/8 o 7 ^5/8	290
18 ^5/8	473.1	6 ^5/8 o 7 ^5/8	290
18 ^3/4	476.2	6 ^5/8 o 7 ^5/8	290
18 ^7/8	479.4	6 ^5/8 o 7 ^5/8	290
19	482.6	6 ^5/8 o 7 ^5/8	300
19 ^1/2	495.3	6 ^5/8 o 7 ^5/8	300
19 ^3/4	501.7	6 ^5/8 o 7 ^5/8	300
20	508	6 ^5/8 o 7 ^5/8	320
20 ^1/2	514.4	6 ^5/8 o 7 ^5/8	320
20 ^1/4	520.7	6 ^5/8 o 7 ^5/8	320
20 ^3/4	527.1	6 ^5/8 o 7 ^5/8	320
21	533.3	6 ^5/8 o 7 ^5/8	350
21 ^1/4	539.8	6 ^5/8 o 7 ^5/8	350
21 ^1/2	546.1	6 ^5/8 o 7 ^5/8	350
21 ^3/4	552.5	6 ^5/8 o 7 ^5/8	350
22	:JanJan:ndnd	6 ^5/8 o 7 ^5/8	395
22 ^1/4	565.2	6 ^5/8 o 7 ^5/8	395
22 ^1/2	571.5	6 ^5/8 o 7 ^5/8	395
22 ^3/4	577.9	6 ^5/8 o 7 ^5/8	395
23	589.2	6 ^5/8 o 7 ^5/8	450
23 ^1/4	590.6	6 ^5/8 o 7 ^5/8	450
23 ^1/2	596.9	6 ^5/8 o 7 ^5/8	450
23 ^3/4	603	6 ^5/8 o 7 ^5/8	450
24	609.6	6 ^5/8 o 7 ^5/8	465
24 ^1/4	616.3	6 ^5/8 o 7 ^5/8	465
24 ^1/2	622.3	6 ^5/8 o 7 ^5/8	465
24 ^3/4	628.7	6 ^5/8 o 7 ^5/8	465
25	635	6 ^5/8 o 7 ^5/8	480
25 ^1/4	641.4	6 ^5/8 o 7 ^5/8	480
25 ^1/2	647.7	6 ^5/8 o 7 ^5/8	480
25 ^3/4	654.3	6 ^5/8 o 7 ^5/8	480
26	660.4	6 ^5/8 o 7 ^5/8	595
26 ^1/4	666.8	6 ^5/8 o 7 ^5/8	595
26 ^1/2	673.1	6 ^5/8 o 7 ^5/8	595
26 ^3/4	679.5	6 ^5/8 o 7 ^5/8	595
27	685.8	6 ^5/8 o 7 ^5/8	605
27 ^1/4	692.2	6 ^5/8 o 7 ^5/8	605
27 ^1/2	698.4	6 ^5/8 o 7 ^5/8	605
27 ^3/4	704.9	6 ^5/8 o 7 ^5/8	605
28	711.2	6 ^5/8 o 7 ^5/8	650
28 ^1/2	723.5	6 ^5/8 o 7 ^5/8	650

parametri perforazione triconi

tricono tipo	formazione da attraversare	peso per pollice di diam. (kg) MAX	peso per pollice di diam. (kg) MIN	gir/min MIN	gir/min MAX
triconi a denti	tenere medio tenere	450	1300	60	110
triconi a denti	medio dure	450	1800	50	100
triconi a denti	dure molto dure	900	2200	40	80
triconi ad inserti	medio tenere	450	1800	45	80
triconi ad inserti	medio dure abrasive	1200	2800	40	80
triconi ad inserti	dure abrasive	1800	3100	30	60

Esempio: Tricono ad inserti diam. 311 – 12” ¼ in formazioni medio dure: (12,25×1200=14.700 kg); (12,25×2800=34.300 kg).
Quindi il tricono dovrà avere un carico che va dalle 14,7 alle 34,3 tonnellate (peso di tutta la batteria di aste + astoni pesanti + spinta della perforatrice) ad una velocità di rotazione dai 40 agli 80 giri al minuto.
Questi sono parametri teorici calcolati su principi generali. Sarà poi l’esperienza dell’operatore, in funzione delle caratteristiche del cantiere, a stabilire le proprie condizioni ideali di lavoro.