FISHING TOOLS - National Oilwell Varco

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2 NOV Downhole is the largest independent downhole tool and equipment provider in the world. We have the expertise to optimize BHA selection and performance, supporting over 150 locations in more than 80 countries. Our complete range of solutions for the bottom hole assembly and related equipment includes: • Drill Bits • Drilling Motors • Borehole Enlargement • Drilling Tools and Products • NOV ® Coring Services • Fishing Tools • Intervention and Completion Tools • Service Equipment • Advanced Drilling Solutions We take pride in delivering superior performance and reliability. Our objective is to exceed our customers’ expectations, improve their economics and be an integral part of their strategies.
Intervention, Retrieval, and Recovery <strong>FISHING</strong> <strong>TOOLS</strong> NOV Downhole is the manufacturer of Bowen ® Fishing Tools, the world’s most respected and reliable fishing tool products in the oil and gas industry for over 85 years. Fishing Tools are utilized in two types of operations. 1. Well Intervention – the operation of servicing an underperforming well in order to increase its production 2. Fishing – the operation of recovering an object that is stuck, damaged, or lost in the wellbore NOV Downhole provides a vast range of fishing tools that have become industry standards. The comprehensive list of products includes catch tools, fishing stroking tools such as jars, intensifiers, and bumper subs, junk retrieval tools, milling and cutting tools, as well as repair and remedial tools. We lead the industry in terms of the size and diversity of our fleet and our ability to provide and service tools at a global level. Each fishing tool is engineered to perform a specific operation. Since several fishing tools are utilized to make a fishing bottom hole assembly, each tool enhances the performance of the others to provide the most effective solution for all types of well intervention and fishing operations. NOV Downhole’s Bowen ® Line of Fishing Tools: External catch fishing tools Internal catch fishing tools Junk retrieval fishing tools Milling and cutting tools Accessory tools Repair and remedial tools NOV Downhole offers a computer-based Fishing Jar Placement Program that determines the optimum jar placement in the fishing string to maximize the energy of the jarring impact and impulse. This successful, field-proven placement program compensates for the effects of hole angle, hole curvature, and frictional drag making it applicable for straight, directional, and horizontal hole analysis. External Catch Fishing tools that engage the fish on its outer diameter. These tools help you recover equipment downhole by using a grapple or by threading directly to its outside surface. Internal Catch Fishing tools that engage the fish in its inner diameter. Similar to External Catch Tools, this is achieved by a grapple or by threading directly to the fish’s inside surface. Junk Catch Fishing tools used to remove debris, also known as “junk”, from the wellbore. Magnets and junk baskets are ideal when retrieving a fish that is broken into pieces or has an irregular shape. Milling and Cutting Fishing tools used to mill or cut objects downhole for a specific reason. Whether you are milling up a fish that could not be retrieved to surface, cutting casing or tubing in an intervention operation, or performing a washing over procedure, NOV Downhole has the tools for the job. Accessory Tools NOV Downhole offers a variety of tools that enhance the fishing operation. Bumper subs provide you that extra movement in the drillstring when finding the top of the fish, fishing jars create the impact and impulse force to free the stuck fish, and our intensifiers are run in conjunction with the fishing jar to increase the jarring impact. Remedial and Repair Scrapers are used to clean the casing’s inside wall, rollers restore the the inner diameter of casing and tubing to their normal inside diameter and roundness, and patches form a permanent sealed connection between two strings of tubing or casing. Engineering Services NOV Downhole provides customized solutions to your specific application. When a special tool is required, our experienced engineering staff is available to evaluate your application and provide a specific and reliable solution. 3
Page 1: FISHING TOOLS
Page 5 and 6: In operation, the Overshot function
Page 7 and 8: Series 150 Overshots Tools are list
Page 9 and 10: Series 150 Overshots FISHING TOOLS
Page 11 and 12: FISHING TOOLS Impression Blocks and
Page 13 and 14: Series 20 Overshots Bowen ® Series
Page 15 and 16: Rotary Die Collars Bowen ® Rotary
Page 17 and 18: Itco-Type Releasing Spear Bowen ®
Page 19 and 20: Full-Circle Releasing Spears Bowen
Page 21 and 22: Safety Joints Bowen ® Coarse Threa
Page 23 and 24: Lubricated Fishing Bumper Subs Bowe
Page 25 and 26: Jar Placement Program The Need for
Page 27 and 28: Type Z Oil Jars Bowen ® Type Z Oi
Page 29 and 30: Super II Fishing Jar Bowen ® Super
Page 31 and 32: Surface Bumper Jars Bowen ® Surfac
Page 33 and 34: Junk Baskets Bowen ® Reverse Circu
Page 35 and 36: Junk Subs Bowen ® Junk Subs NOV Do
Page 37 and 38: Itcoloy Milling Tools FISHING TOOLS
Page 39 and 40: Itcoloy Bowen ® Itcoloy NOV Downho
Page 41 and 42: Hydraulic External Cutters Bowen ®
Page 43 and 44: Internal Pressure Pipe Cutters Bowe
Page 45 and 46: Tubing and Casing Patches Bowen ®
Page 47 and 48: Casing Scraper Bowen ® Casing Scra
Page 49 and 50: FISHING RELIABILITY TOOLS NOV Downh
Page 51 and 52: INDEX Series 150 Overshots Bowen®

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