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Taper Taps
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Bull Dog Taper Taps are a time-tested, cost-effective fishing tool designed for securely engaging and retrieving stuck downhole equipment or tubulars. Crafted with a gradual, heat-treated taper and precision-cut wickers, these taps offer superior bite and tool engagement. Each Taper Tap includes a central circulation port to maintain fluid flow during operations. Available with fluted or non-fluted wickers and built to order, Bull Dog Taper Taps are engineered to meet the toughest well conditions with maximum reliability and performance.
Applications
Engaging the internal surface of tubing, casing, or other tubular fish.
Retrieving lost or stuck downhole tools and components.
Fishing operations where conventional overshots are not applicable.
Situations requiring a wide catch range and reliable internal grip.
Wellbores where circulation is needed to assist in cleaning or dislodging the fish.
Features & Advantages
Proven Design: One of the oldest and most reliable fishing methods in the industry.
Large Catch Range: Gradual, tapered wickers provide strong engagement across a broad range of fish sizes.
Heat-Treated Durability: Wickers are heat-treated for superior wear resistance and longevity.
Central Circulation Port: Enhances wellbore cleaning and helps with fish recovery.
Customizable: Available with fluted or non-fluted wickers and built to order for specific job requirements.
Cost-Effective: Simple design with minimal moving parts ensures a reliable, budget-friendly solution.
Versatile Integration: Compatible with standard fishing assemblies for ease of use.
Specifications
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Bull Dog Tool taper taps are manufactured to order based on your application.
Frequently Asked Questions (FAQs)
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What is the Bull Dog® Taper Tap used for?
The Taper Tap is used to fish tubulars or tools by catching them internally. It threads into the inside diameter (I.D.) of the fish using hardened tapered wickers, allowing you to recover stuck pipe, tubing, or downhole components without external engagement.
How does the Taper Tap work?
The tool is lowered into the fish and rotated slowly. Its heat-treated tapered threads (called wickers) bite into the I.D. of the stuck component. As rotation continues, the taper tightens — locking the fish onto the tap for retrieval. Circulation can be maintained through the center of the tool.
What types of fish are best suited for the Taper Tap?
Use a Taper Tap when you're targeting:
Tubing or casing with an open I.D.
Broken tool joints
Downhole plugs or sleeves
Accessories without fishing necksIt’s a first-choice tool when the I.D. is accessible and you need a simple, solid bite.
What sizes and options are available?
Bull Dog offers Taper Taps in multiple O.D. sizes with fluted or non-fluted wickers, depending on your retrieval needs. Fluted designs allow circulation through the tap, while non-fluted models offer more contact surface for aggressive bite. Custom tapers and connections are available on request.
How is a Taper Tap different from a Box Tap?
A Taper Tap catches internally by threading into the inside of the fish. A Box Tap catches externally, threading onto the outside of the fish. Both tools are threaded and tapered, but used in different scenarios based on fish accessibility and size.