Comprehensive Drilling Rig Parts Guide for BOMCO, Lanzhou LS, Sichuan Honghua, SJ Petro & RG Petro

Core Purpose & Equipment Compatibility

This guide focuses on professional drilling rig parts compatible with mainstream rig models from leading manufacturers including BOMCO, Lanzhou LS (Lanzhou LS-NOW, Lanzhou LS-NOV), Sichuan Honghua, SJ Petro, RG Petro, and other brands. It covers a full range of rig types, such as ZJ15, ZJ20, ZJ32, ZJ45, ZJ60, ZJ70D, ZJ50D, MR 8000 Mechanical, E2000 VFD/SCR, as well as workover rigs (XJ150-XJ750) and car rigs (ZJ10-ZJ40). Tailored for oil and gas drilling operators, maintenance technicians, procurement teams, and rig fleet managers, these parts ensure reliable rig operation, support efficient maintenance, and resolve technical faults, complying with API 7K, API 6A, and relevant industrial standards to meet the rigorous demands of onshore and offshore drilling projects.

Product Introduction

We provide a full suite of drilling rig parts, covering key components such as masts/derricks, drawworks, hooks, swivel stems, rotary tables, mud pumps, BOP (Blowout Preventers), BOP control units, crown blocks, travelling blocks, and auxiliary equipment (clutches, brakes, transfer cases). All parts are engineered to match OE specifications of BOMCO, Lanzhou LS, Sichuan Honghua, SJ Petro, RG Petro, and NOV, ensuring perfect interchangeability and structural compatibility. Our parts undergo strict quality control, including material testing, pressure resistance verification, and fatigue life assessment, to meet the high-load, high-pressure, and harsh environmental operating requirements of drilling rigs.

Function Description

Each category of drilling rig parts serves a critical role in ensuring safe and efficient drilling operations. Masts/derricks provide stable support for the drilling string and lifting equipment, with load capacities ranging from 90 mton to 454 mton. Drawworks (JC13-JC750 series) drive the lifting and lowering of the drilling string, delivering power from 250 HP to 2000 HP for precise speed control. Hooks and travelling blocks (YD series, YC series, DG series) bear the weight of the drilling string and tools, ensuring stable load transmission. Rotary tables (ZP-445-ZP-950) drive the drilling string to rotate for rock breaking, while mud pumps (F-500-F-1600, NB-350, HHF series) circulate drilling fluid to cool the drill bit, carry cuttings, and maintain wellbore pressure. BOPs and their control units prevent wellbore blowouts, safeguarding personnel and equipment safety. Auxiliary parts such as clutches (TPQ series, ATD series) and brakes (PSZ30/PSZ40) ensure smooth power transmission and reliable braking.

Structural Features

Our drilling rig parts feature robust structural designs optimized for durability and performance. Masts/derricks (JJ90/39-K, JJ450/45-K) adopt multi-section modular structures for easy transportation and installation, with high-strength alloy steel welding to resist wind loads and dynamic stresses. Drawworks are equipped with electrical control hydraulic disc brakes for precise braking and overload protection, with single or double drum designs to adapt to different drilling scenarios. Hooks and travelling blocks use precision-forged alloy steel with heat treatment, featuring anti-wear sheave grooves and sealed bearings to reduce maintenance frequency. Mud pumps (triplex, single acting) have reinforced fluid ends and high-pressure seals to withstand working pressures up to 5000 psi. BOPs adopt modular designs for quick maintenance, with corrosion-resistant materials suitable for offshore and high-salinity environments. All parts integrate fatigue-resistant structures to extend service life under cyclic load conditions.

Applicable Working Conditions

These drilling rig parts are widely applicable to various onshore and offshore drilling scenarios, including conventional oil and gas drilling, shale gas exploration, deep well drilling, and workover operations. They can adapt to harsh environmental conditions such as high temperature (up to 60℃), low temperature (-40℃), high humidity, salt spray (offshore), and desert dust. For deep well drilling (service depth up to 6500 ft), parts like ZJ70D rig components and SL450 swivels provide high load-bearing capacity (454 mton) and pressure resistance (5000 psi) to meet operational demands. For workover rigs and car rigs, lightweight and portable parts ensure flexibility in mobile operations. They are also compatible with different power systems (diesel engine, DC/AC motor, SCR/VFD) to match diverse rig configurations.

Maintenance & Care Recommendations

Regular maintenance is critical to extending the service life of drilling rig parts and ensuring operational safety, following API 7K maintenance protocols. For masts/derricks, inspect welding seams quarterly for cracks, tighten fasteners regularly, and apply anti-corrosion coating annually (especially for offshore use). Drawworks require regular lubrication of gears and bearings, inspection of brake pads for wear, and cleaning of drum grooves to prevent drilling line damage. Hooks and travelling blocks should be inspected for deformation and sheave wear monthly, with bearing lubrication every 100 operating hours. Mud pumps need regular replacement of seals and valve components (every 300-500 operating hours), and fluid end flushing to remove debris. BOPs should be pressure-tested every 6 months, with seal replacement and control system calibration to ensure emergency responsiveness. All parts should be stored in dry, well-ventilated areas to avoid moisture and corrosion, and damaged parts should be replaced with genuine OE-compatible components to prevent secondary damage.

Drilling rig parts for Bomco,Lanzhou LS,Sichuan honghua, Sj petro, Rg petro

Model : ZJ70D

Power : 2000 HP

Mud Pump : 3 ea 1600 hp - Bomco

Mast:2000 HP JJ450/45-5

Model : ZJ50D

Power : 1500 HP

Mud Pump : 3 ea 1600 hp

MAST:1500 HP JJ450/45-K

Static Hook load (w/6 ×7 lines) (1,000,000 lbs)

Effective Height: 45.50m

Model :MR 8000 Mechanical

Power : 1000 HP

Draw work: : Single Drum line groove (1 1/8") Drilling Line Driven by 2 each 376 kW diesel engine CAT 3408C-DITA

Model :ZJ70/4500D SCR

Power : 2000 HP

Draw work: : Single Drum, line groove (1 1/2") Drilling Line Driven by 2 each 1100 hp DC Motors

Model :E2000 VFD/SCR 50Hz

Power : 2000 HP

Draw work: : Single Drum, line groove (1 1/2") Drilling Line Driven by 2 each 1070 HP YJ13X AC Motors

Model :ZJ70/4500D

Power : 2000 HP SCR 60HZ RIG

Draw work: :2000 HP , JC70D , LINE GROVE ( 1 1/2" ) DRILLING DRIVEN BY 2EA 1100HP DC MOTOR

Model : JJ450/45-5

Power : 2000 HP

Mud Pump : 3 ea 1600 hp - Bomco

1, ZJ10/ ZJ20/ ZJ30/ ZJ40 car rig;

2, XJ150/ XJ250/ XJ450/ XJ650/ XJ750 workover rig XJ350/ XJ550/;

3, JC14/JC14/11 single double drum winch /JC18/JC18/11 single double drum winch / JC21/JC21/11 single double drum winch / JC28/JC28/11 single double drum winch and JC32/11 double drum winch;

4,BZX180B / FD70/FD110/FD140 / JX90/130/240 series car transfer case series angle box /ZX110/ZX140 series rotary transmission box /BJX260 and box angle / JJX140 drop from the box / LTH series climbing chain box / LTXF500/LTXF800 series mud pump chain box;

5, TPQ (TPQ118/ TPQ218/ TPQ318/ series clutch TPQ124/ TPQ224/ TPQ324/ TPQ330) and ATD series clutch (ATD114H / ATD214H/ ATD314H/ ATD118H/ ATD218H/ ATD318H /ATD124H /ATD224H / ATD324H/ ATD230H/ ATD330H);

6, PSZ30/PSZ40 hydraulic disc brake;

Drawworks Horsepower 250 HP

Main Drum

SJ Petro, Double Drum

Sand Drum

9/16” Grove, 7000 ft

Mast SJ Petro Height 95 ft

Crown Block 6 – 1 lines

Prime mover

Engine CAT C-9 ACERT

Transmission Allison 4700 OFS

Rig Carrier SJ Petro, 4 axels, 8 x 8

Working Platform Class II & III BOP

Hoist Steel Base Suitable to the rig carrier

Travelling Block YG70, 3×24, 70 Tons

Drilling Line Blue Strand 7/8”, 6 x 19 IPS, IWRC

Sand Line Blue Strand 9/16”, 6 x 7 IPS, FC

Hydraulic Winch ?” & 5/8” wire rope, cap. 3 ton & 5 ton

Service Depth 6500 ft with 3.1/2” EUE tubing

Work Over Depth 4100 ft with 3.1/2” DP

Nominal Hook Load 112.000 lbs

Max. Static Load 140.000 lbs

Engine Cummins K19

Fluid End OPI 350

Accumulator Shengkai

Annular BOP Hydrill, 11” x 3000 Psi

RAM BOP Shaffer, 11” x 3000 Psi

Mud pump FB-1600

Mud pump JF-1600

Honghua mud pump HHF-1000

NOV Mud pump 8-P-80

NOV Mud pump 12-P-160

NOV Mud pump 10-P-130

Bomco mud pump F-800

Mud pump PZ-7

Hook DG-450

Lanzhou, travelling block YC-450

NOV, swivel SL450-SL

NOV,drawworks  JC-50D

NOV, hook DG 450

NOV, swivel SL-450-5

Lanzhou, swivel SL-450-5

Lanzhou, traveling block YC-450-2

SJ Petroleum Machinery, drawworks JC400

Bomco, drawworks JC50DB

Kerui Group, E-2000-DC

Kerui Group, travelling block YC450

Honghua, drawworks JC40

Honghua mud pump HHF-800

Honghua, travelling block YG225

YJ23F14

Bomco, hook DG315

Bomco, traveling block YC315-8C

Bomco, swivel SL-450

Bomco, travelling block YC315

Bomco, swivel SL-450

BOMCO, traveling block YC-450

SJ Petroleum Machinery, drawworks JC750

SJ Petroleum Machinery, traveling blokYG 180

JiangSu, Swivel SL-225

Lanzhou, Hook,DG-450

NOV, Travelling block YC450-2

NOV, Swivel SL-450-5

BOMCO drawworks JC-70DB

Traveling block YC-450

Drum gear coupling GCL12(125D)-00

On-Site Fault Repair Cases

Case 1: Drawworks Brake Failure on ZJ45 Rig

An onshore ZJ45 rig (HAIHUA) experienced brake failure during drilling string lifting, with the JC35 drawworks unable to maintain load. Inspection found worn hydraulic disc brake pads and contaminated brake fluid. Replacing the brake pads with genuine parts, flushing the hydraulic system, and refilling with compatible fluid resolved the issue. Post-repair testing confirmed compliance with API 7K braking standards, ensuring safe load control.

Case 2: Mud Pump Leakage on ZJ60 Rig

A BOMCO ZJ60 rig with F-1600 mud pumps reported severe fluid leakage from the fluid end. Investigation revealed damaged NBR seals and eroded valve seats due to unfiltered drilling fluid. Replacing the seals and valve components, installing a high-efficiency strainer, and cleaning the fluid end restored pump performance, reducing downtime by 80% and meeting 5000 psi working pressure requirements.

Case 3: Swivel Seal Damage on ZJ70D Rig

An offshore ZJ70D rig’s SL450 swivel suffered seal damage, leading to drilling fluid leakage and reduced pressure resistance. Saltwater corrosion and improper lubrication were identified as root causes. Replacing the FKM seals, applying anti-corrosion grease, and recalibrating the swivel’s pressure relief system eliminated leaks, ensuring compliance with offshore safety regulations (API 6A).

Case 4: BOP Control Unit Malfunction on ZJ20 Rig

An SJ Petro ZJ20 rig’s BOP control unit (DONGSU) failed to activate during a wellbore pressure surge. Inspection found a faulty solenoid valve and contaminated hydraulic fluid. Replacing the solenoid valve, flushing the control system, and conducting pressure tests restored emergency responsiveness, preventing potential blowout risks and meeting industry safety standards.

FAQ

Procurement Guide

All drilling rig parts provided comply with OE specifications of BOMCO, Lanzhou LS, Sichuan Honghua, SJ Petro, RG Petro, and NOV, as well as API 7K, API 6A, and relevant industrial standards. We offer a full range of parts for rig models from ZJ15 to ZJ70D, workover rigs, and car rigs, ensuring one-stop procurement solutions. Our parts undergo strict quality testing to guarantee durability, compatibility, and safety, helping reduce maintenance costs and unplanned downtime. For bulk procurement, customized parts solutions, technical consultation on part selection, or maintenance guidance, contact us to secure high-quality, authentic parts and professional support tailored to your drilling operation needs.

contact us ：

Emeil: [email protected]   whatsapp: +86 15275658619

Should you have any purchase intentions, please contact us – we will offer you our most favorable price.