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Workover refers to the process of pulling and replacing a completion, which is among the most complex and difficult types of wellwork. Workover can only be performed when large workover equipment, drill pipes and turntables are used. Presently, there are many kinds of workover tools on the market.
As a professional workover tool manufacturer in China, Rugao Yaou Company provides a wide range of efficient and durable workover tools, including taper tap, die collar, mill shoe, casing scraper, fishing overshot, fishing magnet and hole opener. These products are designed according to the actual requirement of workover situations.
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- Taper Tap, Die Collar of Workover Tool
A taper tap is a special fishing tool making thread on the inside wall of tube dropped objects such as drill pipes and oil tubes. It is made with chip groove so as to make threads easily. Our taper taps are manufactured from high quality alloy steel and processed by special heat treatment. As a result, they have the advantage of high strength, high toughness and easy tapping. The fishing ID range is from 39mm to 88mm.
A die collar is a special external catch fishing tool engaged on the outside wall of tubing objects such as oil tubing and drill pipes. In order to make threads easily, it is made with chip groove. Our die collars are made up of high quality alloy steel and processed by special heat treatment, featuring high strength, high toughness and easy tapping. The fishing ID range is from 73mm to 127mm.
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- Mill Shoe of Workover Tool
By their structure and shape, mill shoes can be divided into three types: flat-bottom or concave-bottom milling shoe, guide milling shoe and cone milling shoe. At the milling surface, the carbide particles are built up by welding, playing a part of self-milling. Our mill shoe is mainly used to mill the fallen substances, such as bolt, nut, tooth wheel, slip dog, fittings for deep-well pump, and more.
Specifications of Mill Shoe
Type Max. OD. Connection OAL PMX215-1 215 4-1/2REG 540 PMX311-1 311 6-5/8REG 595 PMX406-1 406 7-5/8REG 650
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- Casing Scraper of Workover Tool
A casing scraper is designed to remove cement, mud, embedded bullets, rust, mill scale, paraffin, perforation burrs and other substances from the inside walls of casing. Maintaining a clean casing I. D. is important to the operation of all well drilling tools. Additionally, packers and similar tools must have a clean surface to grip. The foreign materials on casing walls will make these tools difficult to operate. The components of our casing scraper are all made from high grade materials.
The standard connections on the casing scraper are API Reg., Box and Pin, which allow the scraper to be installed in the drilling string between the bit and the bit sub. The bit is run below the scraper, with the function of guiding and preventing plugging.
Specifications of Casing Scraper
Casing Size(in)(mm) Connection Body OD(in)(mm) OAL(in)(mm) Body ID(in)(mm) Quantity Of Blades(in)(mm) 4-1/2" 2-3/8"REG 3-5/8"(91) 38-1/4"(971.2) 3/4"(20) 2×3 5" NC26 3-5/7"(94) 38-1/4"(971.2) 3/4"(20) 2×3 5-1/2" NC31 4-5/16"(110) 43-5/16"(1100) 1"(25) 2×3 6-5/8" 3-1/2"REG 5-1/8"(130) 3-5/16"(1100) 1"(25) 2×3 7" 3-1/2"REG 5-3/8"(136) 3-5/16"(1100) 1-3/16"(30) 2×3 9-5/8" 4-1/2"REG 8"(203) 52"(1320) 2-1/4"(57) 2×5 13-3/8" 6-5/8"REG 11-1/4"(286) 59"(1500) 2-13/16(71) 2×7
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- Fishing Overshot of Workover Tool
The fishing overshot is a simple and rugged fishing tool used to externally engage, pack off and pull a fish. There are two types of internal catch mechanisms: a basket grapple and a spiral grapple. Our fishing overshot can be configured with extension sub, wall hook, enlarged guide, or other accessories according to different uses.
If you want a non-standard fishing overshot, please give us your specific specifications.
Specifications of Fishing Overshot
O.D. Max. Catch Size(mm) Connection Basket Grapple Spiral Grapple 5-3/4" φ90 φ119 NC38 7-7/8" φ156 φ171 NC50 8-1/8" φ159 φ170 NC50 10-5/8" φ200 φ220 6-5/8REG 11-1/4" φ218 φ245 6-5/8REG
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- Fishing Magnet of Workover Tool
A fishing magnet is used to retrieve various kinds of small objects having magnetic attraction from bore hole bottoms. The undrillable objects such as cones, bearings, slips, tong pins and milling cuttings can often be retrieved only by magnetic attraction. So keep the bore bottom clean.
Specifications of Fishing Magnet
OD(mm) Connection Hole Range(mm) Magnet Strength(Normal) ф92 NC26 ф100~ф125 260kg ф140 3-1/2REG ф160~ф185 330kg ф146 NC38 ф160~ф185 400kg ф177.8 NC50 ф185~ф210 500kg ф194 NC50 ф215~ф240 700kg ф203.2 NC50 ф215~ф240 710kg ф270 6-5/8REG ф280~ф330 1300kg ф279 6-5/8REG ф290~ф400 1800kg ф381 6-5/8REG ф400~ф450 3500kg
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- Hole Opener of Workover Tool
Our hole opener is manufactured from tough heat treated alloy steel for high strength. Cutter arms, which are equipped with removable cutter, are hardfaced and welded on body. Three types of cutters are available, including type SM for soft to medium formation, type MH for medium to hard formation and type XH for hard formation. In addition, our hole openers have three or six jet tubes with replaceable nozzles, allowing jet streams quickly clean the enlarged hole.
Rugao Yaou Company is a renowned oil drilling equipment manufacturer in China. We mainly specialize in manufacturing and supplying oil drilling tools, well cement tools, as well as hydraulic press brakes and shearing machines etc. As a result of our reasonable prices, reliable quality, and complete service, our products are extensively used in many countries, such as Germany, Russia, India, Singapore, America, and more.
Please feel free to contact us if you are interested in our oil drilling equipment.
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