Type BZ Drilling Jar

Type BZ Drilling Jar

   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 loadjarring forcescope 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 sell, directional well and complicated well operations..

Type

O.D(mm)

I.D(mm)

Connection(API)

Max. Upward Jarring Force (kN)

Max. Downward Jarring Force (kN)

Overall Length(mm)

BZ121

φ121

φ50.8

NC38

450

230

6356

BZ159

φ159

φ57.2

NC50

630

360

10735

BZ165

φ165

φ57.2

NC50

630

360

10735

BZ196

φ196

φ71.4

6-5/8REG

820

460

10358

BZ203

φ203

φ71.4

6-5/8REG

820

460

10358

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