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Tel: (086)515/88489398
Fax: (086)515/88429333
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Address: No. 588 Century Street, Yandu District, Yancheng City, Jiangsu Province, PR China
E-mail: lsg@wellhead.cn sales@wellhead.cn
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  Drilling Jar Type BZ Detailed parameter  

Drilling Jar Type BZ is full mechanical type drilling jar and releasing stuck tool. The drilling jar integrates the upward jarring with the downward jarring so that it can release from the tight pull or the sticking etc. during drilling. The load (jarring force) scope of the upward jarring and the downward jarring is so wide that it can be adjusted in the maintenance station or in the well site according to the requirement. The special flexible joint can reduce the flexural stress of the drilling jar body efficiently. So it is the first selected drilling jar for vertical well, deep well, directional well and complicated well operations.

Type

O.D
mm (inch)

I.D
mm (inch)

Connection(API)

Max. Upward Jarring Force (kN)

Max. Downward Jarring Force (kN)

Overall Length
mm (inch)

BZ121

121(4 3/4)

50.8 (2)

NC38

450

230

6356 (250)

BZ159

159 (6 1/4)

57.2 (2 1/4)

NC50

630

360

7265 (286)

BZ165

165 (6 1/2)

57.2 (2 1/4)

NC50

630

360

7265 (286)

BZ197

197 (7 3/4)

71.4 (2 13/16)

6-5/8REG

820

460

7062 (278)

BZ203

203 (8)

71.4 (2 13/16)

6-5/8REG

820

460

7062 (278)

Contact Us
General Manager: Shougang Li
Tel: (086)515/88489398
Fax: (086)515/88429333
Mobilephone: 13605104790
Address: No. 588 Century Street, Yandu District, Yancheng City, Jiangsu Province, PR China
E-mail: lsg@wellhead.cn sales@wellhead.cn
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