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Shaanxi Senwell Drilling Equipment Co., Ltd
Jenny(General manager)
Tel:0086-29-85370919
Fax:0086-29-85370919
E-mail:Jennysaless@vip.163.com
                sales@oiltoolsdp.com
Website:Http://www.oiltoolsdp.com
 

Surface Bumper Jar(DJ Type)

Surface Bumper Jar(DJ Type) basic infomation

Catalog: Jar tools
Keywords: Surface Bumper Jar(DJ Type)
Tel: 0086-29-85370919
Fax: 0086-29-85370919
E-mail: Jennysaless@vip.163.com
Surface Bumper Jar(DJ Type) basic infomation

 

The DJ Type Surface Bumper Jar is an effective tool for resolving the problem of stuck drill tool in down hole. It is connected with the surface section of drill string, the device to adjust the tonnage shall protrude from the rotary disc face, the violent down jarring to the stuck catch can be clearly seen when the surface jar makes jarring operation. The jarring strength for the tool can be easily adjusted and it is a easy operated, unique designed tool which can make continuous down jarring .The surface jar ,which not only can bear heavy load and strong torque but also owns a good sealing property and can withstand the mud circulation with high pump pressure, has proven to be an safe, successfully effective releasing tool through many years application.

 

Detail Specification:
 

Technical specification and parameters for DJ type Surface Bumper Jar

 

Type

Parameter

DJ46B(4 3/4")

DJ70B(7")

O.D. mm (in)

121(4 3/4)

178 (7)

Max. Jarring force MN (tf)

0.4 (41±5)

0.8 (80±5)

Max. Tension Load MN (tf)

1.2(122)

1.5 (153)

Sealing Pressure Mpa (kgf/cm 2 )

20(196)

20(196)

Stroke mm (in)

1500 (59)

1220 (48)

I.D. mm (in)

32(1 1/4)

5 1(2)

Connection

NC38 (3 1/2 IF)

NC50 (4 1/2 IF)

Closed Length mm (in)

3155 (124.2)

3090 (121.8)

 

Shaanxi Senwell Drilling Equipment Co.,Ltd    Jenny (General Manager)
Tel:0086-29-85370919     Fax:0086-29-85370919
Email:Jennysaless@vip.163.com     sales@oiltoolsdp.com
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