Oil Fishing Tool Downhole Fishing Jar Zjs Type of Drilling Jar Intensifier

• Customization: Available
• After-sales Service: 1year
• Warranty: 1year
• Model NO.: ZJS 46B
• Manufacturing Process: Casting
• Surface Treatment: Spray-Paint
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Product Name: Zjs Jar Intensifier
• Others: See The Product Description
• Payment: T/T and L/C
• Color: Blue
• Transport Package: Standard
• Specification: O. D 80mm-229mm
• Trademark: Tianhe
• Origin: China
• HS Code: 8431431000
• Production Capacity: 50000

Product Description

Product Description

 About Zjs Jar Intensifier 
The ZJS type jar intensifier is a type of downhole fishing jar designed to increase the top jar's jarring force. It runs in conjunction with either YSJ type hydraulic top jar or CSJ type super jar. Its main function is to supply acceleration to the upper end of the jar during the free jarring stroke. The intensifier is essentially a fluid spring that stores strain energy under compression. When the strain is removed, the stored energy is released, accelerating and intensifying the top jarring action. The top jarring action thus creates a direct impact on the fish. In addition, the fluid helps to absorb the shock from the rebounding drill string after the jarring stroke, protecting both the drill tools and fishing tools from damage.

Working Principle

Normally, the jar intensifier is connected on top of drill collar and on the lower end of the drill stem. When the fishing tool engages with the fish, the drill tool is lifted. A large amount of energy was thus stored in the intensifier when the silicone oil in the top chamber of the piston was compressed. As the tool is lifted, when the top jar reaches it's free impact stroke, the stored energy in the jar intensifier is suddenly released, accelerating the drill collars and jars upward. When the top  jar reaches its maximum stroke, a strong top jarring action will impact on the fish, resulting in one time jarring force.

The ZJS type jar intensifier is easy to assemble, operate and maintain. No high pressure pre-loading is required.

Product Parameters

Specifications -   Zjs Jar Intensifier

Parameter / Model	ZJS31B	ZJS34B	ZJS36B	ZJS42B	ZJS44B	ZJS46B	ZJS62B	ZJS64B	ZJS70B	ZJS76B	ZJS80B	ZJS90B
Product Code	0501000	0502100	0503000	0505000	0506000	0508000	0510000	0511000	0513000	0514000	0515000	0516000
O.D. (mm)	79	89	95	108	114	121	160	165	178	197	203	229
I.D. (mm)	25.4	28	28	32	38	38	57	57	57	71.4	71.4	76
Overall Length Of Pull Down (mm)	2991	3120	3110	3240	3340	3340	4500	4500	4000	4010	4010	4070
Stroke (mm)	215	215	215	250	250	250	330	330	310	330	330	330
Connection	2 3/8 REG	NC26	NC26	NC31	NC31	NC38	NC50	NC50	NC50	6 5/8 REG	6 5/8 REG	7 5/8 REG
Max.Tensile Load Downhole (kN)	300	400	550	700	800	900	1500	1500	1800	2100	2200	2500
Max.Work Torque (kN.m)	3	3.5	4	6	7	8	15	15	17	20	20	22
Sealing Pressure (MPa)	30	30	30	30	30	30	30	30	30	30	30	30
Pull Down Full Stroke Force (tf)	13~15	15~18	17~20	25~30	25-30	30~35	60~65	60~65	75~85	62~67	62~67	75~85
Weight (kg)	120	150	170	190	200	230	530	560	600	860	900	1030

 Detail Photoes-   Zjs Jar Intensifier

Certifications

Packaging & Shipping

Company Profile

Tianhe Oil Group is an integrated corporation engaged in petroleum equipment design, manufacture, sale, rental, and maintenance, oil engineering services and oilfield exploration and development.Tianhe Oil Group has 5 business scopes throughout 50 countries and regions as follows:

1. Drilling Tools Scope :

The first scope supports the design, manufacture, sale, rental and maintenance of drilling tools such as drill pipe, heavy weight drill pipe, drill collar, kelly, stabilizers, downhole motors, jars, absorbers, fishing tools, milling tools and valves etc.
 

       2.Rigs and Offshore Services Scope :
 

This division supports the design, manufacture, sale, rental, maintenance and other engineering services for skid-
mounted rigs, mobile drilling rigs, workover rigs, offshore drilling platforms and platform cranes etc.
 

      3.Oilfield Engineering Services Scope:
 

This division provides an integrated oilfield engineering support for drilling engineering services, downhole operation services, logging services, directional drilling services, cooperative cementing services and cooperative well completion services etc.
 

      4.Oilfield Exploration and Development Scope :
 

This scope sources, acquires and manages oilfield exploration and development projects, via wholly owned, joint ventures or profit sharing company.
 

      5.Processing Trade with Provided Materials Scope:

Taking advantage of the geographical logistics of Shanghai Free Trade Zone and Yangshan Port, Shanghai Tianhe undertakes processing on giving materials or samples, seeking the common development of diversified forms such as cooperation or joint venture, both domestically and internationally.
Over the years, Tianhe Oil Group, regarding "people-oriented, technology first, continuous improvement, casting brand" as our management guidance, continuously strives to innovate and improve our products and expand business related to oilfield. Meanwhile, The company also increases investment in technology research and development, always takes providing the global customers with the best technical products and services as our company's mission.
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.

 

FAQ

1.Q:Are you a factory or trading company?
We are a factory and the Top 3 of oildrilling equipment manufacturer.
2.Q:Where is your factory located? 
We locate in Heilongjiang Province, China.
3. Q:What do your factory do regarding quality control?
From material to products, we inspect each process to keep good quality.
And SGS inspection can be accepted.
4.Q:How about MOQ ?
We have stock of common sizes at hand, so even few ton is accepted.
5.Q:How about payment ?
Both T/T and L/C can be accepted.
6.Q: How long does your warranty?
We can assured the quality within 90 days after receiving the cargoes.