Drilling Rig Components Classification: New Series Core Parts

1

Drawworks

JC90DB

Nickel-chromium-molybdenum alloy steel (gear); 42CrMoV (main shaft); high-strength cast steel (shell)

1. Gear tooth surface fatigue wear caused by long-term high-torque transmission in ultra-deep well hoisting; 2. Bearing damage due to high-temperature accumulation from poor heat dissipation in closed gear box

1. Equip with intelligent temperature monitoring system, stop operation immediately when gear box temperature exceeds 90℃, and check lubrication status; 2. Use API-certified high-temperature resistant lubricating oil, and replace it every 1200 operating hours according to API Spec 7K requirements

2

Swivel

SL675

Super duplex stainless steel (rotary joint); heat-resistant alloy steel (shell); nitrile rubber (seal ring)

1. Seal failure caused by high-pressure drilling fluid scouring and chemical corrosion of formation fluid; 2. Bearing wear due to misalignment of rotating shaft under high-speed rotation

1. Regularly detect the pH value of drilling fluid, add corrosion inhibitors when pH < 7, and replace seal rings every 500 operating hours; 2. Calibrate the coaxiality of the rotating shaft monthly, ensuring the deviation is within 0.05mm

1

Drawworks

JC80D, JC80DB

42CrNiMoA alloy steel (gear); 40CrNiMo (main shaft); Q690 high-strength steel (base)

1. Gear tooth breakage caused by sudden overload during emergency hoisting of drilling tools; 2. Shaft surface wear due to intrusion of solid particles in lubricating oil

1. Install an overload protection device that meets API Spec 7K, and conduct load calibration quarterly; 2. Equip the lubrication system with a high-precision filter (filtration accuracy ≥ 10μm), and clean the filter element every 300 operating hours

2

Swivel

SL675

Duplex stainless steel (rotary joint); alloy steel (shell); fluororubber (seal ring)

1. Wear of rotating bearing due to high-speed rotation under high pressure; 2. Corrosion of shell surface caused by long-term exposure to drilling fluid mist

1. Replenish high-pressure resistant lubricating grease every 200 operating hours, and check bearing clearance regularly; 2. Install a protective cover for the swivel, clean the shell surface weekly, and apply anti-corrosion coating every 6 months

1

Mud Pump

F-1600E

High-chromium cast iron (cylinder liner); 42CrMo (connecting rod); stainless steel (valve seat)

1. Erosion of cylinder liner by high-velocity solid particles in drilling fluid; 2. Valve seat wear caused by frequent opening and closing under high pressure

1. Ensure the solid control system operates normally, controlling the solid content of drilling fluid below 5% (complying with API RP 13C); 2. Check the valve sealing performance daily, and replace the valve seat if leakage occurs, with replacement cycle not exceeding 800 operating hours

2

Rotary Table

ZP375, ZP375Z

Alloy steel (gear); 45# steel (rotary shaft); high-strength cast iron (base)

1. Gear wear caused by uneven load during drilling tool rotation; 2. Bearing damage due to insufficient lubrication in intermittent operation

1. Control the drilling tool rotation speed within the rated range, avoiding sudden speed changes; 2. Regularly check the lubricating oil level and quality, replenish or replace lubricating oil in time, and keep the lubrication system unobstructed

3

Diesel Engine Generator Set

CAT3512C/SR4, CAT3516CHD

Cast iron (engine block); aluminum alloy (cylinder head); steel (generator rotor)

1. Engine cylinder wear caused by poor quality of fuel and lubricating oil; 2. Generator overheating damage due to poor heat dissipation in high-temperature drilling environments

1. Use fuel and lubricating oil that meet CAT official specifications, and replace the oil filter every 500 operating hours; 2. Clean the radiator fins of the generator set weekly, ensure the cooling fan operates normally, and avoid operating in environments with ambient temperature exceeding 45℃ for a long time

1

Drawworks

JC10DB

40Cr alloy steel (gear); 45# steel (main shaft); Q235B steel (shell)

1. Gear wear caused by insufficient lubrication in intermittent operation; 2. Shaft wear due to dust and debris intrusion into the bearing

1. Apply lubricating grease to the gear and bearing every 200 operating hours, and check the lubrication status regularly; 2. Install a dust cover at the bearing end and the gear box opening to prevent dust intrusion

2

Crown Block

TC50

40Cr (sheave); Q235B steel (frame)

1. Sheave groove wear caused by friction with steel wire rope; 2. Frame corrosion caused by outdoor rain and snow erosion

1. Use steel wire rope that meets API Spec 9A standard, and check the sheave groove wear depth monthly (replace if exceeding 2mm); 2. Paint the frame annually, and clean the surface rust in time

3

Travelling Block

YC50

40Cr (sheave); 45# steel (axle)

1. Axle wear caused by poor lubrication; 2. Sheave damage due to collision with drilling tools during lifting

1. Replenish lubricating grease to the axle every 150 operating hours; 2. Control the lifting speed of drilling tools within 0.3m/s, and avoid collision between the travelling block and drilling tools

4

TDS (Top Drive System)

Customized for ZJ10DBT

Alloy steel (drive shaft); stainless steel (hydraulic cylinder); rubber (seal)

1. Hydraulic seal failure caused by hydraulic oil contamination; 2. Drive shaft wear due to uneven load during rotation

1. Filter the hydraulic oil regularly, and replace the hydraulic filter element every 300 operating hours; 2. Ensure the TDS is evenly stressed during operation, and avoid overloading

5

Mud Pump

F800*1

High-chromium cast iron (cylinder liner); 45# steel (piston rod)

1. Cylinder liner wear caused by solid particles in drilling fluid; 2. Piston rod corrosion due to humid environment

1. Install a primary filter at the mud pump inlet to reduce solid particle intrusion; 2. Clean the piston rod with clean water after operation, and apply anti-rust oil

1

Drawworks

JC40DB

42CrNiMo alloy steel (gear); 40Cr (main shaft); Q345B steel (shell)

1. Gear tooth surface pitting due to repeated medium load; 2. Bearing overheating caused by poor heat dissipation

1. Regularly grind the gear tooth surface to remove pitting, and conduct non-destructive testing every 6 months; 2. Clean the heat dissipation fins of the gear box monthly, and ensure the cooling system operates normally

2

Crown Block

TC225

42CrNiMo (sheave); Q345B steel (frame)

1. Sheave bearing wear caused by intermittent medium load; 2. Frame deformation due to improper transportation and installation

1. Replace the bearing every 1000 operating hours; 2. Use professional lifting equipment during transportation and installation to avoid collision and overload

3

Travelling Block

YC225

42CrNiMo (sheave); 40Cr (axle)

1. Sheave groove wear due to steel wire rope misalignment; 2. Axle fatigue caused by cyclic load

1. Adjust the steel wire rope guide device to ensure alignment, and check the sheave groove wear monthly; 2. Conduct fatigue testing of the axle every 800 operating hours

4

Hook

DG225

20CrMnTi (hook body); 40Cr (pin shaft)

1. Hook mouth wear caused by long-term contact with drilling tools; 2. Pin shaft loosening caused by drilling vibration

1. Install a wear-resistant sleeve at the hook mouth; 2. Apply anti-loosening glue to the pin shaft nut, and check the tightness every shift

5

Swivel

SL225

Stainless steel (rotary joint); alloy steel (shell); nitrile rubber (seal)

1. Rotating joint wear due to high-speed rotation; 2. Seal leakage caused by drilling fluid contamination

1. Monitor the rotation speed to avoid exceeding the rated value; 2. Filter the drilling fluid to remove impurities, and replace the seal ring if leakage is found

6

Mud Pump

F1300*2

High-chromium alloy (cylinder liner); 42CrMo (connecting rod)

1. Cylinder liner erosion caused by high-pressure drilling fluid scouring; 2. Connecting rod wear due to uneven force

1. Control the drilling fluid pressure within the rated range; 2. Check the connecting rod clearance regularly, and adjust or replace if abnormal

1

Drawworks

JC32B

Alloy steel (gear); 45# steel (main shaft); Q345B steel (shell)

1. Gear wear caused by insufficient lubrication; 2. Shaft damage due to foreign particles entering the bearing

1. Regularly check the lubricating oil level and quality, and replenish or replace in time; 2. Install a high-precision filter in the lubrication system to prevent foreign particles from entering

2

Crown Block

TC225

40CrNiMo (sheave); Q345B steel (frame)

1. Sheave groove wear caused by steel wire rope friction; 2. Frame corrosion caused by drilling fluid splashing

1. Check the steel wire rope wear status regularly, and replace if the wear rate exceeds 10%; 2. Install a baffle plate to prevent drilling fluid splashing, and clean the frame weekly

3

Travelling Block

YC225

40CrNiMo (sheave); 40Cr (axle)

1. Axle wear caused by poor lubrication; 2. Sheave damage due to impact load

1. Apply lubricating grease to the axle every 250 operating hours; 2. Control the lifting and lowering speed of the travelling block to reduce impact load

4

Hook

DG225

20CrMnTi (hook body); 40Cr (pin shaft)

1. Hook body fatigue caused by repeated load; 2. Pin shaft corrosion due to humid environment

1. Strictly follow the rated load, not exceeding 80% of the rated load for long-term operation; 2. Apply anti-corrosion oil to the pin shaft monthly, and store in a dry environment when not in use

5

Swivel

SL225

Stainless steel (rotary joint); alloy steel (shell); fluororubber (seal)

1. Seal failure caused by high-pressure drilling fluid; 2. Bearing wear due to misalignment

1. Check the seal pressure regularly, and replace the seal ring if leakage occurs; 2. Calibrate the coaxiality of the swivel monthly

6

Mud Pump

F1300*2

High-chromium cast iron (cylinder liner); 42CrMo (connecting rod)

1. Cylinder liner wear caused by solid particles in drilling fluid; 2. Valve wear caused by frequent opening and closing

1. Strengthen the solid control of drilling fluid, and ensure the filtration system operates effectively; 2. Check the valve condition daily, and replace the valve core if worn