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The QLS Wireline Knuckle Jar Kit is a specialized tool used in wireline operations within the oil and gas industry. This tool is designed to deliver a jarring force to downhole tools and equipment, helping to free stuck items and facilitate various well intervention tasks. Here’s a detailed explanation of its components, functions, and applications:
Components of the QLS Wireline Knuckle Jar Kit
1. Knuckle Joint:
A flexible joint that allows for angular movement and articulation of the tool string. This flexibility helps navigate through deviated or crooked wellbores, improving the tool string’s maneuverability.
2. Jarring Mechanism:
The core component of the kit, designed to deliver an impact or jarring force. This mechanism can be mechanical, hydraulic, or a combination of both, depending on the specific design of the QLS tool.
3. Slip Joint:
Allows for axial movement within the tool string, accommodating changes in length due to temperature variations or other downhole conditions. This helps maintain consistent contact and force application during jarring operations.
4. Fishing Tools:
Optional components that can be attached to the knuckle jar kit to retrieve stuck or lost equipment from the wellbore. These tools are designed to latch onto or engage with the equipment needing retrieval.
Functions and Applications of the QLS Wireline Knuckle Jar Kit
Jarring Force Application:
The primary function of the knuckle jar kit is to deliver a controlled jarring force to free stuck tools or equipment in the wellbore. This is achieved through the jarring mechanism, which can be activated by wireline operators from the surface.
Navigating Complex Wellbores:
The knuckle joint provides the necessary flexibility to navigate through complex wellbore trajectories. This is particularly useful in deviated, horizontal, or highly tortuous well paths where rigid tool strings might struggle.
Tool String Adjustment:
The slip joint component allows for adjustments in the length of the tool string, accommodating thermal expansion or contraction and ensuring consistent force application during jarring operations.
Fishing Operations:
The kit can be equipped with fishing tools to retrieve lost or stuck equipment. This makes the knuckle jar kit versatile, as it can both deliver jarring impacts and assist in fishing operations.
QLS Wireline Knuckle Jar Kit Advantages
1. Increased Flexibility:
The knuckle joint enhances the tool string’s ability to maneuver through challenging wellbore geometries, reducing the risk of getting stuck and improving operational efficiency.
2. Effective Jarring Action:
The jarring mechanism provides a powerful and controlled impact, increasing the likelihood of successfully freeing stuck tools or equipment. This can save significant time and costs associated with non-productive time (NPT).
3. Versatility: The ability to attach various fishing tools makes the kit adaptable to a range of downhole conditions and challenges. This versatility reduces the need for multiple trips and tool changes.
4. Durability and Reliability:
QLS tools are designed to withstand harsh downhole environments, offering robust performance and reliability. This ensures that the knuckle jar kit can operate effectively under high-pressure and high-temperature conditions.
The QLS Wireline Knuckle Jar Kit is a crucial tool in wireline operations, providing the necessary flexibility and jarring force to address stuck tools and equipment in complex wellbores. Its components, including the knuckle joint, jarring mechanism, and slip joint, work together to ensure efficient and effective well intervention. The kit's versatility and durability make it an indispensable asset in the oil and gas industry, optimizing operational efficiency and minimizing downtime.
Product Description
The spring jar is a specialized tool designed for upward jolting in heavy-duty fishing operations. Operating on the shift-flick principle, this tool ensures trouble-free performance with minimal maintenance requirements. Its components include an upper joint, jar cap, jar rod, jar cylinder, spring cylinder, clamp, connecting cylinder, force-adjusting rod, press sleeve, disc spring rod, and lower joint. When the jar is closed, the clasp secures the lower part of the jar rod. During lifting, the jar rod activates the claw, pulling the disc spring rod to compress the stored energy in the disc spring. As the jar rod travels, the jaw separates from the rod, instantly releasing the disc spring energy to achieve the jarring effect.
Technical parameter
Outer Diameter: 1.875"
Fishing neck: 1.750"
Connection:1.875"QLS
Jolt Force: 400-1200lbs
Length:12.4″
Operational Approach
1. Connect the lower end of the spring jar to the tool requiring upward jolting. Lower the tool string to the predetermined position and stop lowering.
2. Gradually lift the tool string, adjusting the lifting force based on the pre-set jarring force. Maintain the lifting force at a consistent level.
3. Continue lifting the tool string at a steady speed until the wire suddenly loses tension, completing the jolt.
4. If the job isn't completed on the first attempt, lower the tool string to reset the spring jar (gripping the lower part of the jar rod) and repeat the jarring process.
Product Description:
The PCE Wireline Rope Socket Pear Drop With Sleeve is used to attach wireline to the tool string. The pear drop rope socket is the most convenient model, which clamps the wireline by the pear-shaped wedge.
Specification:
Size Applicable tubing Fishing neck Connection
1.25＂2-3/8＂ 1.187＂ 15/16UN
1.5＂2-3/8＂～2-7/8＂ 1.375＂ 15/16UN
1.875＂2-7/8＂～3-1/2＂ 1.75＂ 1-1/16UN
2.25＂3-1/2＂～4-1/2＂ 1.75＂ 1-1/16UN
2.5＂4-1/2＂above 2.313＂ 1-9/16UN
Note: we can supply special specifications according to client's requirements.
Features:
Assembly consists of a body with external fishing neck, sleeve and brass wedge(pear drop),The pear drop is grooved to accommodate the wire and comes complete with a securing grub screw
The more pull applied on the Slickline, the more the pear drop pulls into the sleeve giving a tighter grip on the Slickline
Advantages:
1.Wireline Rope Socket Pear Drop are ordered to suit the wire size being deployed
2. Simple, low maintenance design
3. Pear Drop Rope Sockets are used to attach wireline to the toolstring and are predominately used with wireline sizes from 0.092” to 0.160”* dependant on size.
The Wireline Pear Drop Rope Socket assembly consists of a body with an external fishing neck, sleeve and a brass wedge (“pear drop”) which is grooved to accommodate the wire and comes complete with a securing grub screw.
Product description:
Wireline Tubular jars/Wireline Link Jar are used in conjunction with running tools and other equipment to allow the operator to transmit effective jarring force up and down. The effect of jarring depends to a large extent on the weight of the jar upper link and the jar stroke, as well as tubing size and verticality, tool size and depth, fluid density and viscosity, well pressure, and wire size. Has a positive or negative effect on the shock's effect.
Tubular jars are mostly used in oil pipes where cuttings or other possible foreign objects intrude. The jar is tubular in structure, with holes in the tube for fluid flow to allow easy movement of the plunger (jar rod).
Tubular jars are especially effective in large diameter tubing or casing, where chain jars will fail due to bending, while tubular jars are less prone to failure. some. Tubular jars with recommended displacement should be attached directly below the weighted rod.
Specification:
The technical parameters of displacement tube jars/Tubular Jar/Wireline Link Jar recommended for common specifications are as follows:
Size Outer DiameterFishing Neck Connection Thread Length
1.25＂×24＂1.25＂ 1.187＂ 15/16-10UN 24＂
1.5＂×24＂1.5＂ 1.375＂ 15/16-10UN 24＂
1.5＂×30＂1.5＂ 1.375＂ 15/16-10UN 30＂
1.875＂×24＂1.875＂ 1.75＂ 1-1/16-10UN 24＂
1.875＂×30＂1.875＂ 1.75＂ 1-1/16-10UN 30＂
2.125＂×24＂2.125＂ 1.75＂ 1-1/16-10UN 24＂
2.125＂×30＂2.125＂ 1.75＂ 1-1/16-10UN 30＂
2.5＂×24＂2.5＂2.313＂1-9/16-10UN24＂
2.5＂×30＂2.5＂2.313＂1-9/16-10UN30＂
Advantage :
1) Before use, choose the appropriate type of jar according to the actual use environment and conditions, and do not use it blindly;
2) When using, carefully check whether the threaded connection of each component is in good condition and whether it is loose, so as to prevent some parts from falling off when going down the well and causing an accident;
3) After use, properly maintain the tool for the next use.
Wireline Heavy Duty Knucle Joint
Product Description:
The PCE wireline heavy duty knuckle joint is a tool string accessory, used to provide flexibility within the wireline tool string. It is recommended to place a knuckle joint immediately below the rope socket when the rope socket does not offer rotation within the wireline .The PCE Wireline Knuckle Joint is designed to provide a point of flexibility along the length of a wireline toolstring.
Specification:
Size Fishing Neck Connection PN
1.25＂ 1.187＂ 15/16UN W0*-0*.0*.00
1.5＂ 1.375＂ 15/16UN W0*-0*.0*.00
1.75＂ 1.375＂ 15/16UN W0*-0*.0*.00
2＂ 1.75＂ 1-1/16UN W0*-0*.0*.00
2.5＂ 2.313＂ 1-9/16UN W0*-0*.0*.00
Note: More customized parts are available upon request.
Advantages:
Configuring the PCE Wireline Heavy Duty Knuckle Joint within the toolstring enables it to pass unrestricted over nipple shoulders, tubing crossovers and other points where a rigid toolstring may encounter difficulty. The Knuckle Joint can also be used below the mechanical jars to improve the engagement of ill- positioned objects within the tubing or the location of Gas Lift Valve’s within Side Pocket Mandrel’s.
Product Description：
A breech lock quick joint /PCE Breech Lock Connector is wireline tool string connector used instead of the traditional screwed connection.Its structure principle is similar to that of rifle bolt: insert the two quick connecting parts and rotate for 90°, and then it can be locked quickly.
Specification:
Size Fishing neck Connection PN.
1.5＂ 1.375＂ 15/16UN SW06-01.01.00
1.875＂ 1.75＂ 1-1/16UN SW06-01.02.00
2. 5＂ 2.313＂ 1-9/16UN SW06-01.06.00
Note: More customized parts are available upon request.
Features:
1. Safe and simple connection;
2. The three grooves bear the load averagely, so the tool is more suitable for heavy-load operations.
3. It is assembled and disassembled easily, and it can be released even if it is not maintained and is clamped.
4. There is no danger of over screwing, so there is no danger of sliding.
5. It has larger strength than that of corresponding screwed connection.
