SHANDONG SAIGAO GROUP CORPORATION
SHANDONG SAIGAO GROUP CORPORATION

Hydraulic-mechanical Drilling Jar

YJZ type hydraulic-mechanical drilling jar is Integrate hydraulic principle with mechanical principle and applies to all kinds of drilling operations and be used through combining with drilling tools. When the downhole tools get struck, it can generate upward jarring or downward jarring through lifting and landing drilling strings, and release block and stuck by several times jarring to recover normal drilling operation promptly. Avoiding resistance and stuck which may cause fiirther accident and caused greater economic loss. If releasing force is failed, it can dynamically adjust at any time on sites.


Technical Specification of Hydraulic-mechanical Drilling Jar

Model

YJZ108

YJZ 121

YJZ 165

YJZ203

OD

mm (inch)

108 (4-1/4)

121 (4-3/4)

165 (6-1/2)

203 (8)

ID

mm (inch)

38.1 (1-1/2)

44.5 (1-3/4)

57.2 (2-1/4)

70 (2-3/4)

Tool Joint Connection

API

NC31

NC38

NC50

6-5/8 REG

Max. Upward Jarring Force

KN(lbf)

250 (56,000)

350 (79,000)

700(160,000)

1000 (225,000)

Max. Downward Jarring Force

KN(lbf)

120 (27,000)

170 (38,000)

350 (79,000)

450 (100,000)

Max. Tensile Load

KN(lbf)

800(180,000)

1100 (247,000)

2000 (450,000)

2800 (630,000)

Tensile Yield

KN(lbf)

1350 (300,000)

1950 (438,000)

3750 (843,000)

6650(1,495,000)

Torsional Limited

KNm (lbf-ft)

10 (7,400)

15(11,000)

30 (22,000)

45 (33,000)

Torsional Yield

KNm (lbf-ft)

18(13,200)

27 (20,000)

75 (55,000)

90 (66,000)

Overall Length

mm (ft)

6696 (22)

6696(22)

6455 (21.2)

7215 (23.7)


PRODUCT
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Why Choose Us
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