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YSJ type hydraulic jar is used to free stuck drilling tools in the well. This jar can produce large up-striking force for fishing and coring operations. Through hydraulic principle, a sudden release of the elastic potential energy that accumulates in the drill tool during the hydraulic time delay will create a large up jarring force. The key advantages of YSJ type Z oil jar is that with its simple structure. It provides strong jarring force, is easy to operate and can be easily reset to the pre-load position for consecutive jarring. For better jarring impact, YSJ type Z oil jar is recommended to be used together with the ZSJ type jar intensifier.
Working principle
As the piston in the jar slowly moves up the cylinder, the working fluid (hydraulic oil) is pressured and compressed due to its slow out flowing rate. During this hydraulic time delay, elastic potential energy starts to accumulate in the drill tool. When the piston reaches the releasing bore, the hydraulic oil gushes out releasing the pressure, giving the piston a rapid upward load and releasing the elastic potential energy in the drill tool. When the jar pad hits the bottom of the up jar cylinder it creates an impact, this strong dynamic load is then transmitted to release the stuck drill tool. An important feature of this jar is the ease of closing and resetting the tools for consecutive jarring.
Specifications - YSJ TYPE Z OIL JAR
| Parameters/Type | YSJ79B | YSJ95B | YSJ108B | YSJ114B | YSJ121C | YSJ159C | YSJ178B | YSJ203C | YSJ229B |
| Product Code | 0101000 | 0103000 | 0105000 | 0106000 | 0108100 | 0110100 | 0113000 | 0115100 | 0116000 |
| O.D. (mm) | 80 | 95 | 108 | 114 | 121 | 159 | 178 | 203 | 229 |
| I.D. (mm) | 25.4 | 28 | 32 | 38 | 50.8 | 57 | 57 | 76 | 76 |
| Work Stroke (mm) | 256 | 245 | 254 | 289 | 330 | 380 | 380 | 380 | 380 |
| Max.Work Torque (kN.m) | 3 | 4 | 4.5 | 4.9 | 7.8 | 15 | 19.6 | 22 | 25 |
| Max.Jarring Lifting Tons (kN) | 130 | 160 | 180 | 200 | 270 | 600 | 650 | 750 | 900 |
| Sealing Pressure (MPa) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Max.Work Temperature (ºC ) | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 | 150 |
| Connection | 2 3/8REG | NC26 | NC31 | NC31 | NC38 | NC50 | NC50 | 6 5/8 REG | 7 5/8 REG |
| Pull-Down Length (mm) | 2435 | 2450 | 2450 | 2660 | 3230 | 3376 | 3340 | 3720 | 3500 |
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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:
- Drilling Tools Scope :
mounted rigs, mobile drilling rigs, workover rigs, offshore drilling platforms and platform cranes etc.
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.
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.
