DSATS Workshop – Galveston, TX

13 April 2010

Drilling AutomationgLanguage and Terminology

Fred Florence

NATIONAL OILWELL VARCO

Drilling Automation Language and Terminology

• Surface and downhole devicesSurface and downhole devices• Typical drilling operations• Proposed naming conventionProposed naming convention• Example• Breakout session• Breakout session

Drilling Automation Control Devices

Draw-works

Mud Pump

Top Drive

DrillerMPDMud

Proc SensorsOffsite

Monitoring & Support

Coil TubingCement???

Each machine has its own control

Magic Box-Closed Loop Control-Envelope Protection3rd Parties

Comms Method

Geologist

Envelope Protection-BHA Downlinking-What Else?

3rd Parties- Command/Limits

- No direct machine control

Geologist Drilling Eng

OFF SITEDistributed

SensorsSteering Equip.

Survey Meas.

Formation Evaluation

Drilling Mechanics Meas.

At Bit Meas.

Sensors

SurfaceMachines

Draw-works Mud PumpTop Drive

DrillerMPDMud Proc SensorsCoil TubingCement???

Each machine has its own control

Drilling ahead, routine, vertical hole …

• Drawworks brake; maybe an autodriller• Top Drive / Rotary• Top Drive / Rotary• Mud Pumps• Mud processing equipment• SensorsSensors• ???

Proposed Naming Convention

• Use case • Drilling function

• Physical entity

• Control entity

• What physically occurs

• What we can change• Control entity

• Configuration data

• What we can change

• Manual measurements

Use Case / Drilling Function

• DrillingDrilling– Vertical well– Directional well, slide drillingg– Directional well, rotary steerable– Casing drilling

• Tripping, running casing, cementing, etc.

• Hole Cleaning

Physical Entity / What Physically  Occurs

• RotationRotation• Hoisting• LoweringLowering• Flow• etc• etc.

Control Entity / What We Can Change

• RPMRPM• SPM• PressurePressure• Inclination• Azimuth• Azimuth• etc.

Configuration Data / Manual Measurements

• Drillstring componentsDrillstring components– Bit type, diameter, jets, etc.– BHA components and locationsp– Drillpipe diameters, tooljoint lengths, etc.

• Rig equipment characteristics– Liner size, stroke length– Derrick height, drill line diameter, etc.

• Many others …

Example

• Use CaseHole Cleaning

• Physical EntityFlowRPM

• Control EntitySPM

Liner St k

• Configuration DataLiner Ø

Stroke Length

Don’t Get Lost in the Weeds

• Mechanization, Semi-Automation,Mechanization, Semi Automation, Automation– Manual Brake, Power Brakes, ABS

• Develop the methodology• Separate group to fully definep g p y

Breakout Session

• The process is listed on the handout (Use Case)

• Define what physically affects the process (Physical Entity)p y y p ( y y)

• List the machine control requirement (Control Entity)

• Identify fixed inputs affecting the process (Configuration Data)

• Optional: List the data exchange requirement