SHANDONG SAIGAO GROUP CORPORATION
SHANDONG SAIGAO GROUP CORPORATION
Mechanical Drilling Jar

Mechanical Drilling Jar

Mechanical drilling jar is full mechanical type drilling jar and releasing stuck tool. It integrate upward jarring with downward jarring so that it can release drilling tools from the block or the stuck etc. during drilling. It is a part of drill stem when it doesn't jarring and it can work at any time when need jarring, thus it is highly improve the drilling efficiency, it has widely load (jarring force) scope of upward jarring and download jarring, so it can be adjusted at the maintenance station or on the well site according to the requirement. The special flexible joint can effectively reduce the flexural stress of the drilling jar body. Therefore, it is the first selected drilling jar for vertical well, deep well, directional well and complicated well operations..


Technical Specification of Mechanical Drilling Jar

Model

BZ121

BZ165

BZ203

BZ229

OD

mm (inch)

121 (4-3/4)

165 (6-1/2)

203 (8)

229 (9)

ID

mm (inch)

50.8(2)

57.2 (2-1/4)

71.4 (2-13/16)

76.2 (3)

Tool Joint Connection

API

NC38

NC50

6-5/8 REG

7-5/8 REG

Max. Upward Jarring Force

KN(lbf)

450 (100,000)

630 (140,000)

820(184,000)

1000 (225,000)

Max. Downward Jarring Force

KN(lbf)

230 (51,700)

360 (81,000)

460 (103,500)

500 (112,000)

Max. Tensile Load

KN(lbf)

1100 (247,000)

2000 (450,000)

2500 (562,000)

3000 (675,000)

Tensile Yield

KN(lbf)

1500 (337,000)

3000 (675,000)

4000 (900,000)

6000 (1350,000)

Torsional Limited

KN m (lbf-ft)

13 (10,000)

15 (11,000)

20 (14,000)

45 (33,000)

Torsional Yield

KNm (lbf-ft)

20 (14,000)

25 (1&000)

35 (25,000)

60 (45,000)

Overall Length

mm (ft)

6370 (20.9)

7015 (23)

7310(24)

7431 (24.4)

 

Leave a Message

PRODUCT

Contact Us

sales@saigaogroup.com susan@saigaogroup.com
+86-531-69959201
lqg18653457231
+86 18653457231
Zhongrun Century Center, No 12111,Jingshi Road, Lixia District, Jinan City, Shandong Province. P.R. China