Bowen Equivalent Drilling Tool Jysz Double Acting Hydraulic-Mechanical Drilling Jar

• Standard: API
• Usage: Oil Mining, Well Drilling
• Material: Alloy
• Operation Pressure: Atmospheric Pressure
• Surface Treatment: Spray-Paint
• Product Name: Double Acting Hydraulic Drilling Jar
• Model NO.: JYSZ
• Others: See The Product Description
• Transport Package: Standard
• Specification: O. D 121mm-241mm
• Trademark: Tianhe
• Origin: China
• HS Code: 8431431000
• Production Capacity: 50000

Product Description

Product Description

jysz double action hydraulic-mechanical drilling jar
(The drilling jar is a double acting jar) This drilling jar is designed to deliver hydraulic delay when jarring in the up direction, and mechanical release when jarring in the down direction. It provides excellent functional stability and strong jarring forces in both jarring direction. It is used to free stuck drill string components and is recommended for directional/deep wells drilling application.

 

Working principle

• Up Jarring

Lower the drill stem to ensure that drilling jar is closed completely (in locking position). Up jarring is achieved by slowly increasing the lifting force on the drill stem, until there is sufficient pull force to overcome the spring resistance and initial hydraulic time delay. During the time delay, the overpull at surface can be adjusted to vary the desired impact force. When the mandrel reaches the trigger position, there is a sudden release in resistance, the elastic potential energy stored within the drill string will be transmitted to forward up jarring impact energy. After impact, apply a downward force sufficient to close jar in locking position, then repeat the jarring cycle as required.

 

• Down Jarring

Lift and lower the drill stem to ensure that the drilling jar is closed completely (in locking position). Down Jarring is achieved by applying sufficient downward force to compress the spring and store elastic potential energy. When the pressure of the jar is greater than the desired unlocking force, the grapple will slide away from the mandrel to release the locking, performing down jarring action. Repeat the procedures to produce continuous down jarring action.

Product Parameters

Specifications - jysz double action hydraulic-mechanical drilling jar

Model	QYSZ121B	QYSZ159C	QYSZ165B	QYSZ172C	QYSZ178B	QYSZ203B	QYSZ241
Product Code	1808000	1810000	1811000	1812000	1813000	1815000	1817000
O.D. (mm)	121	159	165	172	178	203	241
I.D. (mm)	50.8	69	69	69	69	76.2	76.2
API Connection	NC38	NC46	NC50	NC50	NC50	6 5/8 REG	7 5/8 REG
Overall Length (mm)	9100	9450	9450	9450	8890	9700	9700
Total Weight (kg)	530	980	1020	1110	1290	1660	2400
Up Jarring Free Stroke (mm)	127	190	190	190	190	190	190
Down Jarring Free Stroke (mm)	165	190	190	190	190	190	190
Max. Up Jarring Force (kN)	350	700	700	700	800	1000	1250
Max. Down Jarring Force (kN)	200	350	350	350	400	500	650
Max. Tensile Load (kN)	1500	3750	3750	3750	4650	6650	7350
Working Pull Force (kN)	1000	2000	2000	2000	2400	2800	3500
Max. Torque Load (kN•m)	18	75	75	75	91	133	180
Working Torque (kN•m)	10	25	25	25	30	35	40
Pump Area (cm²)	18	26	26	26	51	58	78

 Detail Photoes- jysz double action hydraulic-mechanical drilling jar

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.