API Oil Gas Down Hole Bxj Lubricated Fishing Bumper Jar Bowen Equivalent

• After-sales Service: 1 Year
• Warranty: 1 Year
• Manufacturing Process: Forging
• Surface Treatment: Polishing
• Operation Pressure: Atmospheric Pressure
• Material: Cast Steel
• Model NO.: BXJ31B
• Connnection: Reg Nc26 Nc31 Cn50
• Od: 80-203mm
• ID: 25.4-76.2mm
• Sealing Pressure: 30MPa
• Transport Package: Wooden Case
• Specification: see the detail specification
• Trademark: TIANHE
• Origin: China
• HS Code: 8208101900
• Production Capacity: 50000piece/Year

Product Description

Product Description

Lubricated fishing bumper sub uses the gravitational force of a downward moving heavy weight object to create the jarring force. It is engineered to withstand strong, sustained jarring force in harsh downhole applications, severe fishing operations and deep workover operations. This bumper sub is suitable for both middle and deep downhole operation. It has an inner chamber filled with hydraulic oil to help lengthen its service life.

Lubricated fishing bumper sub is a widely used jarring tool because it is easy      to operate and it assists in multiple applications. This bumper sub can provide necessary impact force in either the upward or downward direction during jarring operations. It can provide strong, continuous downward jarring force and medium, continuous upward jarring force. In addition, it can be used to engage and disengage releasable fishing tools. On top of that, this bumper sub may also act as a constant pressure drill tool.

Working Principle

• Energy conversion in jarring operation

Downward jarring forced is achieved through the conversion of stored energy     to kinetic energy. When lift load is applied to the drill stem, the bumper jar is pulled open to a certain height creating a potential energy. As higher lift load is applied, the drill stem begins to accumulate stored strain energy due to the spring extension. Sudden release of the lift load will convert the stored strain energy     in the drill stem to a downward acceleration force. As the drill stem accelerate downwards, the bumper jar is released towards its closed position, releasing its potential energy. At this instant, both released energies combine, creating a large downward jarring force.

• Main factors that influence the jarring force

Hanging weight on top of drill stem with the bumper jar. Higher hanging weight will create higher jarring force.

Length of spring extension of the drill jar. Longer length of spring extension during lifting will provide a greater jarring force.

Stroke length of the bumper jar. Longer stroke length will provide a bigger jarring force.
 

Product Parameters

Specifications - BXJ Lubricated Fishing Bumper Sub

BXJ Lubricated Fishing Bumper Sub (11)

 

Parameter / Model	BXJ31B	BXJ34B	BXJ36B	BXJ42B	BXJ44B	BXJ46B	BXJ62B	BXJ64B	BXJ70B	BXJ80B
Product Code	1101000	1102000	1103000	1105000	1106000	1108000	1110000	1111000	1113000	1115000
O.D. (mm)	80	89	95	108	114	121	159	165	178	203
I.D. (mm)	25.4	25.4	28	32	38	38	57	57	70	76.2
Sealing Pressure (MPa)	30	30	30	30	30	30	30	30	30	30
Max.Tensile load (tf)	30	40	50	70	80	90	143	143	153	220
Work Stroke (mm)	394	394	394	394	394	400	460	460	465	465
Connection	2 3/8 REG	NC26	NC26	NC31	NC31	NC38	NC50	NC50	NC50	6 5/8 REG
Closed Length (mm)	2355	2400	2514	2450	2450	2446	2730	2730	2950	3108

Certifications

Company Profile

Tianhe Oil Group Huifeng Petroleum Equipment Co., Ltd is a modernized medium-scale enterprise specialized in production of oil and gas tools.

As an API-Certified established manufacturer and supplier of a comprehensive range of downhole equipment with related accessories, we are committed to providing the highest Quality products for the Petroleum and natural gas industry since 1973.


Tianhe Oil Group strongly believes and promotes Total Quality Management, implement the ISO quality management system and HSE management system and API Standard, which has been deeply implanted into every person's thought and carried out into every aspect of work.

Our manufacturing facilities are well equipped with four automated induction heat treatment lines and dozens of other types of heat treatment ovens and well furnaces to ensure full coverage of heat treatment requirements by different products to achieve the required mechanical properties.

In order to ensure the quality consistency and interchangeability of high precision components, Tianhe has introduced WFL 5-axis Linkage Turning & Milling Machining Center from Austria, Mazak's turn milling machining center from Japan and the Haas vertical machining center from USA. These processes are facilitated with precise quality inspection equipment such as the Brunker OES Metal Analyzers from Germany, Ultrasonic and Magnetic Powder Flaw Detector and high precision Hexagon Three Coordinate Measuring Machine and Farco Portable Three Coordinate Measuring Machine.

So far, Tianhe Oil Group has established strong business relationships with over 200 international oil & gas companies in supporting the top 50 oil producing countries.

We take pride in delivering superior performances and reliability. Our objective is to exceed your expectations, improve your economics and be an integral part of your strategies.