overshot drilling supplier

This drilling tool is an Over shot fishing tool. To construct this part it we manufacture in a similar fashion to the fishing spear. The over shot is precision CNC machined from hardened high alloy steel. And has a sharp internal thread profile. This fishing tool latches to the outside diameter of the broken down hole drilling tool. The hard sharpened threads are designed to latch and thread into the part.

NDS Drilling Supply stocks these four Over Shots, which all are constructed of 4140 steel,  heat treated to 60 Rockwell C to ensure a long, lasting life.  Any size Over Shots can be special ordered to help you get unstuck!  These Over Shots Listed below are Available for Purchase on

An OVERSHOT is attached to the end of a wireline and lowered into the outer tube. The Overshot then locks on to the Latch Head Assembly at the top of the core barrel.

The inner tube is then pulled to the surface with the core sample inside. Givens International offers an overshot for a spear point or quad latch head.

Explore the various drilling overshot products available for wholesale at Alibaba.com. Get a drilling overshot for drilling water wells, water exploration holes, geological exploration, coal mines, and other kinds of mining. Some drilling overshot options use caterpillar tread to move. Others use rubber tires, while others require a separate means of transport. Caterpillar tread propulsion can climb up to 25 degrees inclination. Some products in the range are capable of drilling over 200 meters, while others are only used for open-pit mining with depths of around 3 meters. Drilling can be done vertically downwards, horizontally, or in a slanting direction. Drilling speed depends on the power of the machine and the general hardness of the surface. The hole diameter can vary from 90mm to 200mm.

drilling overshot options also include an air compressor, a mud pump, drilling rods of various sizes, connectors, and a drilling tower. Drilling is done using drill bits of various shapes, sizes, and compositions. You can choose between diamond bits, alloy ring-shaped bits, 3-wing alloy bits, PDC bits, and hammer bits. Each drill bit uses different drilling methods, including rotary, percussion, blast hole, and core drilling.

Smaller products have a lifting power of around 25 kilonewtons and weigh about 2,500kgs. They’re ideal for small-scale drillings such as farms and homes. Larger ones are faster with more power, making them ideal for commercial use. Browse through Alibaba.com and find a drilling overshot that’s ideal for your work scope. Buy mine drilling rigs for your wholesale business at competitive prices. Chinese wholesalers provide you with customization options and great after-sales services.

Tianhe Oil Group Co. Ltd. is a global group. We are specialized in the production of drilling tools, including R&D, production, selling, leasing, maintenance and services. Tianhe has 5 main businesses spread across the globe in more than 50 countries in the world.

A Casing Overshot is a tool that is joined to a drill pipe or tubing to act as a fishing tool. This tool is dropped inside the wellbore or lowered out of the wall pipe. Also known as an overshot, this tool uses a gripping device that holds the pipe firmly so that fish can be pulled out of the wellbore. A Casing Overshot is basically used as a pulling tool to pull a small fish neck while ensuring that the tool grabs it firmly, without slipping it off.

A Casing Overshot tool is used mainly for fishing, i.e., to pull out or lower fish neck inside tubing or a large pipe. This tool basically consists of a bell, top sub and housing – the three components that help in latching the fish neck inside any size bore. It is a conventional downhole pulling tool that is primarily used in the fishing operations. The bell is installed on the bottom of the Casing Overshot to reduce the chances of travelling beyond a particular distance while fishing. Due to its design, operators can easily use the pulling tool to manage the operation.

Fishing tool is a special fishing drilling tool used to retrieve fallen objects from the borehole. At any stage of the operation, the drill rig operator will encounter unexpected situations, such as falling drill string, stuck pipe, missing drill bit, etc. The equipment that falls into the well is called "fish" or "trash", and the tools used to remove the equipment are called "fishing tools." Sometimes it may be necessary to use "fishing tools" to retrieve older wellbore equipment, such as packers, liners, tubing, or any stuck objects in the well. The drilling tools for fishing must be retrieved from the borehole in order to continue drilling operations.

Overshot is a very common fishing tool. The main fishing object is a smooth tube fish, which belongs to the external fishing type (i.e. catching the external surface of the fish).

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Please reach us for any specific or hard to find or if you have a tight budget for your drilling program we would be glad to help provide a reasonable and reliable solution.

GAOTON Series 150 Releasing and Circulating Overshot is an external fishing tool for engage, pack off and retrieve tubular fish, especially for fishing drill collar and drill pipe. The grapple of the overshot can be designed for different sizes of fish, so one overshot can be dressed with different size of grapple components for fishing different sizes of fish.

GAOTON Series 150 Overshot consists of three outside parts: Top Sub, Bowl, and Standard Guide. The Basic Overshot may be dressed with either of two sets of internal parts, if the fish diameter is near the maximum catch of the Overshot, a Spiral Grapple, Spiral Grapple Control, and Type “A” Packer are used. If the fish diameter is considerably below maximum catch size (½” or more) a Basket Grapple and a Mill Control Packer are used.

Within those famous China oil and gas overshot manufacturers, GAOTON is a professional such supplier, producer and provider, welcome to wholesale petroleum and oilfield API overshot from our factory.