Slickline Spring Jar

Description

Slickline Spring Jar

Technical Description and Specifications

The Slickline Spring Jar is a high-energy impact tool designed to deliver a consistent, repeatable upward jarring force. Unlike purely mechanical jars that rely entirely on the operator’s manual stroke speed and stem weight, the Spring Jar incorporates an internal spring mechanism that stores energy as the wireline is tensioned. When a pre-set load is reached, the mechanism “trips,” releasing the stored energy instantly to create a high-velocity upward impact.

Key Technical Specifications and Operation

• Function: To provide a high-velocity upward impact for shearing pins, retrieving flow control devices, or initiating the release of stuck tools. It is particularly effective in shallow wells where wireline stretch is insufficient to operate mechanical jars effectively.

• Mechanism: As the operator pulls tension on the slickline, an internal heavy-duty coil spring is compressed. Once the pull exceeds the pre-set calibration of the jar, the internal latching mechanism releases, allowing the mandrel to accelerate rapidly and strike the internal anvil.

• Adjustable Trip Force: The “blow” or trip force is adjustable at the surface before the tool is run. This allows the operator to tailor the jarring impact to the specific shear rating of the tool being serviced.

• Automatic Reset: After the jar has tripped and delivered its impact, the operator simply slacks off the wireline; the internal mechanism resets automatically, allowing for multiple jarring cycles without retrieving the tool string.

• Operational Advantage: Provides a consistent “snap” action that is independent of wireline speed, making it an essential tool for precise shearing operations and for use in highly deviated wells where friction might dampen a mechanical jar’s stroke.

• Connection (Customizable):

  • Standard interfaces include industry-standard slickline pin and box threads.

  • Custom order connections are available for compatibility with proprietary quick-connect systems (e.g., QLS, HQC).

• Material (Customizable):

  • Construction: High-strength alloy steel housing with a specialized fatigue-resistant spring steel core.

  • Custom material options include NACE MR0175 compliant alloys for sour service to prevent hydrogen embrittlement of the spring mechanism.

• Critical Parameters (Customizable Spring Rate):

  • Load Range: Available in various spring weights to provide trip forces ranging from light-duty (for delicate pins) to heavy-duty (for fishing). Clients must specify the desired trip-force range and tool OD when placing a custom order.

SEO Keywords (Targeted for Slickline Procurement)

Primary: Slickline Spring Jar, Wireline Spring Loaded Jar, Upward Impact Tool, Adjustable Slickline Jar, High-Velocity Jarring.

Secondary: Energy Storage Jar, Shearing Tool Jar, BHA Spring Jar, Mechanical Trip Jar.