8 1/2" DHV117T

8 1/2" DHV117T is part of water well bit,we are committed to providing our customers with the most professional, diversified and cost-effective customized products

PRODUCT SPECIFICATION

Tornado water well bits are mainly used in drilling engineering of liquid circulation systems (such as water wells, coalbed methane, etc.). Tornado water well bits’ technology comes from the advanced oil roller bit manufacturer in the United States. Based on Shareate’s existing advantages in the design and manufacture of mining roller cone bits, Tornado is designed and manufactured in accordance with the standard of oil roller cone bits, which has a longer lifespan and higher drilling efficiency.

Tornado water well bits selection table

Bit Size		API Thread	Bit model
in	mm	in	Bit model
4 1/2	114.3	2 3/8	DHA117、DHA217、DHA517
5 1/4	133.4	3 1/2	DHA517、DHA537
5 1/2	139.7	3 1/2	DHA517、DHA537
6	152.4	3 1/2	DHA517、DHA537、DHA617、DHA637、DHV517、DHV537、DHV617、DHV637
6 1/8	155.6	3 1/2	DHA517、DHA537、DHV517、DHV537
6 1/4	158.8	3 1/2	DHA517、DHA537、DHV517、DHV537
6 1/2	165.1	3 1/2	DHA437、DHA517、DHA537、DHA617、DHA637、DHV517、DHV537、 DHV617、DHV637
6 3/4	171.5	3 1/2	DHA517、DHA537、DHA617、DHA637、DHV517、DHV537 DHV617、DHV637
7 1/2	190.5	4 1/2	DHV517、DHV537、DHV617
7 5/8	193.7	4 1/2	DHV537、DHV617
7 7/8	200	4 1/2	DHV417、DHV517、DHV527、DHV537、DHV617
8 1/2	215.9	4 1/2	DHA137、DHA437、DHA517、DHA537、DHV137、DHV517、DHV537、DHV617、DHV637
8 3/4	222.3	4 1/2	DHA447、DHV517、DHV537、DHV617
9 1/2	241.3	6 5/8	DHA127、DHV127、DHV437、DHV517、DHV617、DHV637
9 5/8	244.5	6 5/8	DHV547、DHV637
9 7/8	250.8	6 5/8	DHV117、DHV437、DHV517、DHV537、DHV617、DHV637、SHJ617、SHJ637
10 5/8	269.9	6 5/8	DHV117、DHV217、DHV517、DHV537、DHV617
11 5/8	295.3	6 5/8	DHA117、DHA127、DHA517、DHA537、DHA617
12 1/4	311.2	6 5/8	DHA117、DHA127、DHA437、DHA517、DHA537、DHA547、DHA617、DHA637
13 3/8	346.1	6 5/8	SGA535、SGA545
14 3/4	374.7	7 5/8	SGA615
17 1/2	444.5	7 5/8	SGA535

Note: 1.Tricone bits can be designed and produced according to the customer's requirements if there is no bit model found in the above table.

Recommendations for tricone bit parameters

Bit Type	IADC	Recommend parameter		Apply formation
Bit Type	IADC	Pull down（KN/mm）	Rotation speed（r/min）	Apply formation
Rubber seal	117	0.35~0.90	150~80	Extremely soft formations with low compressive strength and high drill ability, such as soft shale, clay, salt rock, etc.
	127	0.35~1.00	150~70	Low compressive strength, high drill ability soft formation, such as shale, clay, salt rock, soft limestone, etc.
	417	0.35~0.90	140~70	Extremely soft formations with low compressive strength and high drill ability, such as shale, clay, sandstone, conglomerate, etc.
	437	0.35~0.95	140~60	Extremely soft formations with low compressive strength and high drill ability, such as shale, clay, sandstone, conglomerate, etc.
	447	0.35~1.00	140~60	Soft formations with low compressive strength and high drill ability, such as shale, clay, salt rock, sandstone, soft limestone, gypsum, etc.
	517	0.35~1.05	120~50	Soft formations with low compressive strength and high drill ability, such as shale, clay, sandstone, soft limestone, etc.
	527	0.35~1.05	120~50	Soft formations of compressive strength, such as shale, clay, sandstone, soft limestone, salt rock, anhydrite, etc.
	537	0.35~1.05	110~40	Compressive strength, medium soft, with hard abrasive inter layer, such as hard shale, anhydrite, soft limestone, sandstone, etc
	547	0.35~1.05	110~40
	617	0.35~1.05	80~40	High compressive strength, medium to hard, with thick hard inter calations, such as hard shale, limestone, dolomite, sandstone, etc.
	627	0.35~1.05	80~40
	637	0.70~1.20	70~40	High compressive strength, high abrasive and medium hard formations such as limestone, dolomite, sandstone, flint, etc.
	647	0.70~1.20	70~40