Tubular

Class List Definitions

Bent_Sub

A short cylindrical drilling tool installed in the drill stem to deflect the downhole motor off vertical to drill a directional hole. It is used directly above a positive displacement motor (PDM) or a turbine, and forces the bit to follow a certain arc of curvature as it drills.

Bit_Condition

Table describing the condition of bits such as drill bit and is subject to change by time.

Bypass_Sub

A pipe connection around a valve or other control mechanism that is installed to permit passage of fluid. (MMS)

Casing

Class describing the properties of a casing pipe

Casing_Accessory

A piece of equipment usually attached to the casing string to perform a specific purpose. Examples of this are Scratcher and Centralizer.

Core_Barrel

A core barrel is run at the bottom of a drill pipe to hold a recovered conventional core.

Core_Bit

A core bit is a piece of drilling equipment used to extract a conventional core from the earth.

Cutter_Pty

This class is for operating properties of cutters as used in drill bits, reamers and hole openers.

Drill_Bit

The tool used to crush or cut rock. Most bits used in rotary drilling are roller cone bits, but diamond bits are also used extensively.

Drill_Hole_Opener

A rotating finishing tool with cutting edges used to enlarge or shape or regulate a hole such as a hole opener or under reamer.

Drill_Measurement_Tool

Tool used for taking measurements downhole while drilling, e.g. MWD tool

Drill_Motor

A positive displacement motor used for drilling.

Drill_Pipe

Tubular conduit fitted with special threaded ends called tool joints. The drillpipe connects the rig surface equipment with the bottomhole assembly and the bit, both to pump drilling fluid to the bit and to be able to raise, lower and rotate the bottomhole assembly and bit

Drill_Stabilizer

A drill string component with bladed section which is of a larger diameter than its body or drill string component with a bladed section that can be attached to the body of another drill string component

External_Casing_Packer

A device used on the outside of the well casing to seal off formations or protect certain zones.

Generic_Tubular

Table describing the properties of tubular

Inflow_Control_Device

A device used to effectively balance well production throughout the entire operational life of the completion to optimize hydrocarbon recovery.

Jar

A mechanical device used downhole to deliver an impact load to another downhole component, especially when that component is stuck.

Motor_Pressure_Coef

The pressure curve that defines the pressure differential curve of a drill motor expressed as a series of coefficients.

Nozzle_Pty

This class is for operating properties of nozzles, ports, jets as used in drill bits, core bits, and other tools. Nozzle for a drill bit is a passageway that causes the drilling fluid to be ejected from the bit at high velocity. The jet of mud clears the bottom of the hole. Nozzles come in different sizes that can be interchanged on the bit to adjust the velocity with which the mud exits the bit. (MMS)

Production_Packer

A piece of downhole equipment, consisting of a sealing device, a holding or setting device, and an inside passage for fluids, used to block the flow of fluids through the annular space between the tubing and the wall of the wellbore by sealing off the space between them.

R_Bit_Wear

The classification of the amount of wear on the drill bit

R_Casing_Accessory

Class holding all valid casing accessories.

R_Casing_Accessory_Cat

Reference class for storing nominal casing accessory data.

R_Casing_Cat

Reference class for storing nominal casing data.

R_Core_Barrel

A reference table that stores the valid types of core barrels.

R_Core_Bit

A reference table that stores the valid types of core bits. A core bit is a piece of equipment used to extract a conventional core from the earth.

R_Cutter_Shape

The shape of a cutter used in a rotary cutting tool. Examples are Round, Square, Triangle and Mosaic

R_Drill_Bit

A high level classification of drill bits as Drag Bits, Polycrystalline Diamond Cutter (PDC) bits, Rolling Cutter Bits, Bi-Center Bits, etc.

R_Drill_Bit_Cat

The catalog properties of a drill bit

R_Drill_Pipe_Cat

The catalog of commonly used drill pipe

R_Generic_Tubular_Cat

Possible default values for a generic tubular

R_IADC_Bearing_Seals

IADC codes for bearings/seals

R_IADC_Grade_Dull

IADC dull characteristics.

R_IADC_Grade_Location

IADC code for grade location

R_IADC_Reason_Pulled

Reference data based on IADC for the reasons of pulling the bit.

R_Inflow_Control_Device

The type of inflow control device.

R_Jar

A classification to indicate the type of jar. Example: Hydraulic, Mechanical, Hydro-Mechanical jars.

R_Production_Packer

A class to hold the valid production packer types available

R_Production_Packer_Cat

Reference class for storing nominal production packer data.

R_Reamer

A classification of reamers. Types include Hole Opener, Reamer, Under Reamer, Roll Reamer, SRWD and RWD

R_Slotted_Liner_Cat

Reference class for storing nominal slotted liner data.

R_Tubing_Cat

Reference class defining the catalog data of nominal properties of a tubing pipe

R_Tubular_Cat

The catalog properties of commonly used tubulars

R_Tubular_Grade

Reference class defining the grade for tubular

R_Tubular_Material

Reference class defining the tubular material and its physical properties.

Reamer

A tool used in drilling to smooth the wall of a well, enlarge the hole to the specified size, help stabilize the bit, straighten the wellbore if kinks or doglegs are encountered, and drill directionally. (MMS

Rotary_Cutting_Tool

It is an abstract parent class for rotary cutting tools like drill bit, core bit, hole opener, reamer, and similar tools.

Rotary_Steerable

Rotary Steerable System provides functionality to drill and steer a well, whilst maintaining continuous drill. It is comprised of: the Bias Unit, extension sub and the Control Unit. Bias Unit is the element of the Rotary Steerable System that connects dir

Slotted_Liner

Table defining the properties of a slotted liner

Tubing

Class defining the nominal properties of a tubing pipe.

Tubular

Any tubular-shaped facility that may be utilized at a wellsite.

Tubular_Condition

A class to hold the condition of the tubular.

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