OIL And Gas Drilling Rig Draw works-Master Course

Explore drawworks motors and ac motors used in drawworks, and explain how variable frequency drives regulate motor speed for driverless drive systems on oil and gas drilling rigs.

Explore how air-assisted clutches transfer power between engine and transmission using compressed air for engagement and disengagement, noting release valve noise, air pressure behavior, and jar and friction clutch types.

Study sprockets, chains, and their tooth profiles, and how their arrangement affects power and speed in machine systems.

Explain how the Drawworks drum diameter matches the drilling line, why a longer drum reduces line bending, and why fleet and flag angles should stay under two degrees.

Explore how an air clutch uses compressed air to engage and disengage power between the engine and transmission, and compare jar-type and friction-type clutches.

The hydraulic unit provides hydraulic power for accurate draw works, powering service calipers and safety calipers. Hydraulic pressure can be about 1000, depending on the driver's capacity.

Explore how a lubrication pump on oil and gas rigs operates as an electrical pump with spray lubrication oil, and how foam pressure gauge in the drill console supports monitoring.

Explore the Drawworks brakes on oil and gas drilling rigs, compare brake types consisting of service, parking, and emergency brakes, within disk brake systems, and cover hydrodynamic and electromagnet variants.

Explain the band brake system in oil and gas rigs: a brake handle and ballast bar apply friction to bands on the driver drum, with an emergency pneumatic brake option.

Identify the disadvantages of band brake systems, noting heat generation and noise, and explain why they are suitable for light to intermediate loads but not for high-capacity drilling rigs.

Explore hydraulic disc brake systems on the drawing drum, featuring multiple calipers and independent actuation, with emergency and parking brake functions replacing band brakes.

The disc brake system offers greater braking capability with hydraulic emergency braking, supports remote control, and reduces noise during grueling operation inside the air-conditioned RULER console.

Explain the difference between service brake and parking brake on oil and gas drilling rig draw works, detailing six service calipers, separate hydraulic hoses, and safety calipers for emergency brake.

Activate the emergency brake to stop the drilling rig during main brake failure, engaging all six calipers and the safety caliper while addressing wear, hydraulic issues, and debris.

This lecture explains the disc brake system on a drill rig draw works, including the hydraulic unit, control panel, drum and service and safety calipers, plus parking and emergency brakes.

Identify and diagnose disc brake troubleshooting by examining hydraulic pressure issues, oil quality and level, leakage, valve settings, pump performance, temperature, filter blockage, and misalignment affecting caliper release.

Examine how the auxiliary brake supports the main service brake to slow and control loads, prevent overheating, and extend brake life on a drilling rig.

Compare the service brake and auxiliary brake on drilling rig draw works; service brake controls operation, auxiliary brake handles heavy loads, with air or water as power.

Discusses factors affecting brake life, including air cooling ventilation, lubrication and maintenance, brake clearance, and monitoring water level and pump pressure for water cooling.

Explore the types of auxiliary brakes used on drilling rig draw works, including hydrodynamic, electromagnet, and compressed-air systems, and explain how regenerative braking recovers energy on high horsepower rigs.

Explain brake cooling systems for drilling rigs, including water cooling with inhibitors and antifreeze, and three methods—water cooling, air cooling, and solid surface cooling—for sustaining cooling cycles and brake performance.

The crown saver system on drilling rigs prevents collisions between traveling block and ground block. It activates automatically at preset limits and applies the emergency brake; pneumatic and electric types.

Learn how pneumatic ground systems operate automatically to control the crown saver, using air valves to engage or disengage the clutch, move the traveling block, and apply emergency brakes.

Learn how to set the pneumatic ground system, engage the emergency brake on contact with the rolling line, and reset to release using the main brake and reset button.

Explore a microcomputer safety system for oil and gas drilling rigs that uses sensors to monitor the travelling block height and trigger an audible alarm and emergency brake.

Learn to set the electric ground server with lower and upper limits, position the elevator and traveling block, and safely release the emergency brake after turning on the main breaker.

Describe how the drilling line is made of strands wound from steel cord and ranges in diameter from half inch to two inches.

Explore the components of drilling lines, including wire, strands, core, and lubrication, and how these form a wire rope used in oil and gas drilling.

Discover wire rope lay concepts, including strand direction and right versus left lay, and how regular and Langley patterns govern strand alignment along the rope axis.

Investigate strand patterns in wire rope design, covering single and multi-layer arrangements, center cores, wire diameters, filler wires in valleys, and combined strand configurations.

Classify wire rope by outer strands and wires per strand, illustrating configurations such as six by nineteen and six by twenty-one with ranges from three to fourteen wires per strand.

Determine when to cut and discard the drilling line to protect personnel and equipment safety. Calculate cutting length from drum diameter and wear to prevent drilling line wear, crushing, and damage.

Learn drilling line tolerance and the nominal rope diameter in inches, including undersized conditions. Ensure the correct groove size to prevent heating, excessive pressure, and wire rope flattening.

Explore drilling line cutter mechanisms, including manual and hydraulic cutters that cut the line after about 10 miles, aided by a cart powered by hydraulic oil and a manual pump.

Properly clamp and tighten the drilling line on the draw drum, pass the line through a passage on one side of the driver, and secure it at the drum end.

Compressed air powers pneumatic systems to control cooling during treatment, offering fast operation and safer, easier maintenance compared with other power sources.

Highlight the advantages of air over hydraulic fluid. Emphasize air's abundant supply, easy storage and transport, temperature insensitivity, safety, cleanliness, and fast expansion for high speed operation at low cost.

Analyze atmospheric constituents such as nitrogen, oxygen, carbon dioxide, water vapor, and other gases, and explain how contaminant-free compressed air supports efficient pneumatic system operation and longer component life.

Air contaminants raise pressure losses and disrupt the pneumatic system, delaying response times and compromising control, leading to expensive downtime.

Ensure dry, clean air by maintaining a contaminant-free environment, with air composed of 78% nitrogen, 21% oxygen, and 1% other gases.

Filtration removes particles that can damage the air compressor, followed by drying to reduce humidity between the compressor and receiver. Air treatment removes moisture and adds oil mist for lubrication.

Explore air applications on drilling rigs, including starting engines with power packs, lifting tubulars on the rig floor, and operating control panels and wellhead installations.

Visualize the general application of the pneumatic system on drilling rigs, highlighting power, process, and control applications such as starting up the engine and the BP control panel.

Explore the hydraulic system on a drilling rig, featuring the hydraulic tank, high-pressure pump, motor control center, and its role in draw work and BP operation.

Explore hydraulic pump types, including hydrodynamic (centrifugal) pumps for low-pressure fluid transfer and positive displacement pumps for high-pressure delivery. Learn suction and discharge lines, valve roles, and piston-driven flow.

Identify how hydraulic contaminants cause sticking, seal wear, and premature failure, including 20-micron particles, and explain how line and pressure filters remove them returning clean fluid to the tank.

Explore what gears are and how gears and sprockets connect to transmit drive and speed, distinguishing driving and driven gears and noting brass sprockets.

Explain the difference between driving gate and driving gear, using an example and a diagram to show how the driving gate applies force to the receiving gate.

Explore two gas system types: step down gears and step up gears. Step down lowers output speed with a smaller gate and larger circumference, while step up increases output speed.

Master the chain drive torque and speed formula by examining driver and driven sprockets, teeth counts, and the inverse relationship between speed and gear teeth, with a worked example.

Explore the relation between power and speed, showing how they can be inversely proportional. Demonstrate calculating total power divided by speed to illustrate their interaction.

Examine a chain drive drawworks transmission case study, calculating input and output rpm across low, intermediate, and high gears using sprockets and chain connections.

The lecture covers daily, monthly, semiannual, annual, and five-year inspections aligned with API recommended practice, defining category 1 through 3 inspections for drawworks components.

Perform routine inspections and ongoing maintenance of drone systems to enhance efficiency and safety, extend component life, and prevent incidents and costly downtime.