120038 Series, 130000 Series & DQ Series Full-Spec Oilfield Drilling and Workover Spare Parts

1. Product Core Overview & Practical Purpose

This comprehensive lineup of industrial spare parts covers 120038 serial mechanical components, 130000 serial hydraulic accessories and DQ serial customized oilfield structural parts, specifically designed and produced for 350-type to 550-type onshore drilling rigs and hydraulic workover rigs. Tailored to the core demands of oilfield construction teams, equipment maintenance crews and engineering contractors, these parts resolve long-standing field pain points including hydraulic circuit throttling failure, pulley block jamming, seal aging leakage and structural positioning deviation. All products are manufactured in strict accordance with API 8C and ISO 10426 international oilfield equipment standards, with independent third-party performance certification. Field verification shows the whole series achieves 21,000 hours of stable working life under rated static load, 4000 hours longer than ordinary market counterparts, serving as core replacement and supporting components for oil and gas extraction mechanical transmission and hydraulic control systems.

2. Detailed Product Introduction

The product portfolio integrates mechanical connection, hydraulic control, sealing protection and structural adjustment modules. It includes precision pins, compression springs, limit baffles and pressure switches for mechanical positioning and induction control; hydraulic core components such as pipe crimping fittings, check throttle valves and manual reversing valves for stable fluid regulation; and customized structural parts like guide sections, deviation handles and lifting lugs for rig mechanical assembly. Each component is precisely machined to match original equipment parameters, realizing full interchangeability for old and new oilfield equipment. All raw materials adopt high-strength alloy steel and oil-resistant rubber materials, adapting to harsh industrial environments for long-term continuous operation.

3. Core Functional Description

This parts set undertakes key functions of equipment positioning, pressure regulation, sealing isolation and power transmission in oilfield operation systems. Mechanical fasteners including cotter pins, bolts and studs fix structural components firmly to avoid equipment loosening under alternating vibration loads. Hydraulic control parts such as ball valves and throttle check valves stabilize hydraulic oil flow rate and pressure, eliminating unsteady power output faults. Various sealing gaskets and packing components isolate hydraulic oil and drilling fluid to prevent medium leakage. Balance devices and movable pulley blocks optimize equipment load distribution, while cable fixing brackets and protective casings protect auxiliary structures from external impact and corrosion damage.

4. Structural Design Characteristics

All components adopt field-oriented optimized structural design with high assembly accuracy and impact resistance. The conical roller bearing and flip bearing adopt asymmetric precision grinding structure, reducing mechanical friction loss effectively. Custom DQ series guide sections and centering rings adopt integral casting molding technology, with no structural deformation under 38MPa high-pressure working state. The O-shaped retaining rings and rubber gaskets feature compression-resistant and aging-resistant structural optimization, avoiding permanent deformation after long-term compression. Threaded parts and crimping nuts follow unified oilfield standard tolerances, ensuring zero assembly gap and high structural stability.

5. Applicable Working Conditions

Suitable for conventional oil and gas drilling, well repairing and well washing operations in terrestrial oilfields, the parts adapt to working temperatures ranging from -40℃ to 60℃ and system working pressure up to 38MPa. They perfectly match 350-type, 450-type and 550-type hydraulic workover rigs and supporting balance systems, capable of stable operation under frequent start-stop, heavy load bearing and high-frequency vibration working conditions. The products are applicable to both conventional shallow well operation and medium-depth well continuous construction scenarios, covering most mainstream working conditions of onshore oilfield mechanical and hydraulic systems.

6. Professional Maintenance Suggestions & Engineer Operation Tips

For daily field maintenance, workers shall inspect all sealing components and spring parts every 180 working hours to check for aging, fatigue and deformation. Hydraulic valves and pipe fittings need pressure resistance testing every 1000 working hours to ensure unobstructed oil circuit transmission. Structural fasteners such as pins and studs require torque calibration every 2500 working hours. Senior field engineers remind of a key operation pitfall: avoid excessive torque when installing M24 series studs, which will cause thread sliding and structural damage. All maintenance and replacement operations must comply with API standard maintenance specifications to guarantee consistent equipment operating performance.

We supply the following spare parts:

1200389031 Палец

1200437602 Сжатая пружина

1200437605 Стопорная планка точно

1200437868 Резиновая прокладка

1200437880 Гильзаподшипник

1200528010 Выключатель давления в сборе

1200529195 Ось поворота

1200529308 Главный кабельный закрепительный кронштейн

1200529592 Регулирующая прокладка

1200567645 Клинья

1200567651 Шпилька M24×550

1200567813 Соединительная тяга

1200567926 Подвижный блок шкива

1200567933 Балансировочное устройство

1200595724 Уплотняющий сальник

1200646952 Губовидное сальниковое обращение

1300004836 Шплинт

1300005154 Быстросъемный соединитель

1300006703 Болт

1300013725 Трубный обжимной фитинг

1300016831 Конусный роликовый подшипник

1300020108 Шариковый клапан

1300028179 Болт

1300028570 Болт

1300035407 О-образное стопорное кольцо

1300036186 Такелажная скоба

1300105449 Откидной подшипник

1300108891 Колоколообразный кожух

1300111717 Механический реверсивный клапан

1300119812 Обжимная гайка

1300124485 Втулка

1300126714 Клапан обратный дроссельный

1300127695 Шланг в сборе

1300141680 Направляющее кольцо

1600002058 Труба из серии стала

1700145953 Труба из серии стала

2600036952 Шатун

DQ018.08.05.00Ⅱ Направляющая секцияⅤ

DQ018.12.21 Уплотняющий сальник

DQ019.04.09 Сальниковая набивка бурового раствора

DQ020.01.13.01 Плашка 4,5″

DQ020.12.30 Шлиц

DQ026.01.13 Кольцо центровочное

DQ027.01.13 Центровочное

DQ027.03.01.00 Скоба штропа 350

DQ027.03.02.00Ⅱ Ручка отклонения

DQ027.04 Подъемная серьга

DQ500Z Схема строповки СВП

HHXZ015.095 Упорный штифт

R01-PS Масляное применение

7. On-Site Field Maintenance Cases

Case 1: Jiangsu Oilfield, Model XJ350 Workover Rig, 180t rated working load. Hydraulic throttle valve failed, causing slow cylinder retraction. After replacing 1300126714 throttle check valve, the hydraulic response speed increased to full rated standard, equipment action delay completely eliminated. Customer feedback on stable continuous operation after replacement.

Case 2: Jilin Oilfield, Model ZJ40 Drilling Rig, 260t static load. Pulley block stuck due to spring fatigue failure. After replacing 1200437602 compression spring, the pulley block operates flexibly with zero jamming, reaching factory commissioning standards.

Case 3: Henan Oilfield, Model XJ450 Workover Rig, 220t dynamic load. Drilling fluid packing seal failed, causing medium leakage. After replacing DQ019.04.09 drilling fluid packing, zero leakage of wellhead pipeline is realized, reducing on-site environmental cleaning workload significantly.

Case 4: Qinghai Oilfield, Model ZJ50 Drilling Rig, 300t full load. Mechanical reversing valve pressure regulation failed. After replacing 1300111717 mechanical reversing valve, system pressure regulation accuracy recovers to ±0.2MPa, fully meeting high-precision operation requirements.

8. Product FAQ

9. Procurement Reference & Technical Value Guidance

This full set of 120038, 130000 and DQ series oilfield spare parts provides standardized, high-reliability technical solutions for daily operation, fault maintenance and equipment overhaul of oil and gas extraction equipment. With authoritative industry certification, exclusive field test data and mature on-site application cases, the products serve as reliable procurement standards for oilfield engineering enterprises and maintenance teams. Every component strictly complies with international oilfield manufacturing specifications, effectively reducing equipment failure frequency, lowering overall operation and maintenance costs, and improving construction efficiency. We provide professional part selection, parameter matching and technical guidance services for global oilfield project teams, supporting batch customized supply of all serial products to meet diversified on-site operation and maintenance demands.