Crossover Sub-ORCHID ENERGY

crossoversub

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Crossover sub is a short sub assembly used to enable two components with different thread types or sizes to be connected. Also it can be used to protect other tooling in drill stem (called saver sub) or be used to deliver outgoing air to the bit face just above the bit (called bit sub).

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Orchid Energy Co can supply crossover subs come in three basic types: A Pin (male) * Box (female); B Pin (male) * Pin (male); C Box (female) * Box (female).

The length of crossover subs is generally measured from shoulder to shoulder. Typical lengths range from 6" - 28" long going up in increments of 2 inches with AISI 4145H, AISI 4145H Mod or Non-magnetic material according to API 7-1. All connections are phosphate-coated or copper plated to improve resistance to corrosion.

1. Circulating Sub

Designed to run immediately above or below the bottom hole assembly (BHA), activation is accomplished by dropping a chrome steel ball from surface and applying pressure. This causes a pin in the sub to shear allowing the sleeve to drop from its primary position to its secondary position, opening three sub ports which divert the flow to the annulus.

2. Saver Sub

Used to extend the life of the drill stem component it is made up to, by taking the wear. The saver sub connection is sacrificed because it can be easily repaired or inexpensively replaced.

Specification: Crossover Sub.pdf
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Top Drive Saver Sub

Top drive subs are a pin-by-pin sub that is made up to the top drive, they serve as the sacrificial element between the drill string and the top drive. This saves on costly repair to the top drive by allowing multiple connections to be made up and broke out using the sub rather than the top drive itself.

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Wear Sub

During drilling operation, serious wear often takes place between drill pipes and casings. The wear sub is typically placed above the drill bit. It is designed to withstand the abrasive forces encountered during drilling, such as formations with high rock hardness or high levels of drill bit vibration.

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Torque Reduction Sub

Torque reduction sub is to reduce the excessive torque generated by drilling in short radius horizontal section and large angle well section. According to its structural components, the torque reduction sub is divided into: mandrel body, upper and lower sliding bearings, slip spiral inner sleeve, straight rib outer sleeve, stop collar etc.

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Lifting Sub

Lifting sub is the special tools for lifting of the drill tools in petroleum, natural gas industry and geologic exploration. With their multifunctional design, lifting subs are instrumental in a wide array of lifting operations, including equipment installation, well servicing, and rigging applications.

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Crossover Sub

1. Circulating Sub

2. Saver Sub

Top Drive Saver Sub

Wear Sub

Torque Reduction Sub

Lifting Sub