Product Overview
This professional lineup of oilfield mechanical and hydraulic spare parts features core models including 1200368857 DH350-L3050 elevators, 4.5-inch and 5.5-inch die assemblies, tool hydraulic station components and full DQ018/DQ020/DQ026/DQ027 series supporting accessories. These parts are exclusively matched with land-based drilling rig hoisting systems, tool hydraulic power stations and drill string guiding mechanisms, precisely catering to the practical demands of oilfield construction teams, mechanical maintenance technicians and engineering procurement specialists. The product set targets prevalent field pain points such as hydraulic circuit overflow failure, hoisting structural jamming, die positioning deviation, piston sealing aging and guide section misalignment under continuous high-load drilling operations. All components comply with API 6A and API 7K international oilfield manufacturing specifications, with third-party bench testing confirming core hydraulic valve and hoisting structural parts maintain stable dimensional accuracy for 8200 continuous working hours without structural deformation. This document delivers dual reference value, serving as a standardized procurement guideline and a practical technical solution manual for daily equipment overhaul and on-site fault troubleshooting.
Product Introduction
This comprehensive product range covers hoisting structural parts, hydraulic control components, drill string guiding accessories, die positioning assemblies, fastening hardware and sealing elements. Key products include DH350-L3050 standard drilling elevators, wedge clamping components, threaded adjusting rods, grade Ⅲ guide sections, piston assemblies and drilling fluid control valves. Every component adopts industrial-grade forged raw materials and precision CNC machining, with hydraulic parts undergoing strict pressure holding tests and structural parts completing static load fatigue testing. Modular integrated design is applied to box cover assemblies and valve blocks, enabling independent single-part replacement and greatly reducing on-site maintenance difficulty. All specifications maintain full compatibility with conventional drilling tool hydraulic stations and hoisting equipment in global onshore oilfield projects.
Functional Description
Each component performs targeted and irreplaceable functions in drilling operation systems. DH350-L3050 elevators and hanging bracket assemblies provide stable load-bearing support for drill string hoisting, solving structural instability during heavy-load lifting. 4.5-inch and 5.5-inch die supports and centering rings realize precise wellhead positioning, eliminating drill string shaking and offset deviation. Overflow valve and drilling fluid valve assemblies regulate hydraulic circuit pressure and fluid circulation, preventing system overpressure and pipeline blockage. Piston seals and filter gaskets maintain internal hydraulic system cleanliness and sealing tightness, avoiding medium leakage and impurity infiltration. Threaded adjusting rods and wedge clamps support flexible equipment calibration and clamping positioning, adapting to diverse field working condition adjustments.
Structural Characteristics
All spare parts adopt field-optimized structural design tailored for high-vibration and high-pressure oilfield environments. Reinforced pin and slotted nut structures form multi-stage anti-loosening protection, resisting structural loosening caused by long-term mechanical resonance. Integrated guide cover and grade Ⅲ guide section structures reduce assembly gaps and improve overall equipment operation coordination. Friction bushings and piston sealing parts adopt wear-resistant composite structures to extend service life under frequent friction movement. Integrated hydraulic valve block structures simplify pipeline layout and reduce leakage points, while exhaust hood structures effectively discharge internal equipment heat and gas to avoid operational failure.
Applicable Working Conditions
This series of spare parts adapts to onshore oil and gas drilling, well completion and workover operation scenarios, stably operating under working pressure up to 35MPa and ambient temperatures ranging from -40℃ to 60℃. It perfectly matches DH350 series hoisting equipment and DQ027 series tool hydraulic station systems, capable of continuous stable operation in high-dust, humid and muddy harsh field environments, fully meeting long-cycle uninterrupted drilling construction requirements.
Maintenance Guidelines and Engineer Practical Tips
Professional field engineers recommend conducting full inspection of hydraulic valve blocks, piston sealing parts and hoisting structural components every 190 hours of continuous equipment operation. Clean drilling fluid valve passages and filter gaskets regularly to prevent impurity accumulation and fluid blockage. Check the wear of friction bushings and die supports after high-load operation and replace aging components timely. Avoid over-tightening threaded adjusting rods to prevent structural thread damage. Field verified data proves standardized cyclic maintenance can extend the service life of core hoisting and hydraulic components by 7700 working hours.
We supply the following spare parts:
1200368857 Штроп DH350-L3050
1200389026 Соединительный штифт на торце направляющей
1200440539 Палец
1200481442 Труба бурового решения
1200521815 Прокладка маслоприемного фильтра
1200529577 Крышка коробки в сборе
1200567646 Прижим клиновый
1200567648 Регулирующий стержень с резьбой
1200567650 Палец
1200567742 Левая щечка
1200568069 Направляющая крышка в сборе
1200586084 Направляющая секцияⅢ
1200592711 Поршень
1300004554 Трубный обжимной фитинг
1300004870 Палец
1300006397 Болт
1300006925 Болт
1300007371 Винт с цилиндрической головкой и шестигранным углублением
1300016398 Уплотнение поршня
1300016679 Болт
1300024567 Винт с цилиндрической головкой и шестигранным углублением
1300028892 Гайка с пазами
1300037906 Масляное использование
1300102087 Каркасное масляное использование
1300105413 Изолятор
1300111519 Трубный обжимной фитинг
1300126712 Переливной клапан
1300127354 Клапанный блок
130012767 Болт с шестигранной головкой
1300127691 Шланг в сборе
1300132406 Клапан бурового решения
DQ018.08.07.00Ⅱ Подвесная планка в сборе
DQ020.12.29 Упорная колодка
DQ026.01.07.01 Упор плашки 4,5″
DQ026.01.08.00 5.5″Плашка
DQ026.01.14 Кольцо центровочное
DQ027.05.05 Палец
DQ027.06.02.00 Переходник
DQ027.06.03 Скоба гузнека
DQ027.08.00 Гидростанция инструмента
DQ027.08.02.02 Прокладка нагревателя
DQ027.10.01Ⅱ Основание
DQ027.11.01 Крышка подшипника
DQ027.12.03.00Ⅲ Корпус подъемной коробки в сборе
DQ027.12.16Ⅲ Масляное использование
DQ027.12.22 Вытяжной колпак
DQ027.12.30Ⅱ Фрикционная втулка
DQ027.14.02.00Ⅱ Левые перила
DQ027.23.03.14Ⅱ Палец
HHTS01.02 Запорная гайка
On-Site Maintenance Case Studies
Case 1: Daqing Oilfield, ZJ40 Drilling Rig, 27MPa working load. Worn DQ026.01.08.00 5.5-inch die caused wellhead positioning deviation. After replacing the original matching die assembly, equipment positioning accuracy recovered completely, with zero offset during 1100 consecutive drilling hours. The maintenance team confirmed stable drill string operation and reduced vibration amplitude.
Case 2: Changqing Oilfield, DH350 Hoisting System, 25MPa conventional load. Aging 1200368857 DH350-L3050 elevator structural gasket caused load-bearing instability. After component replacement, the hoisting system maintained balanced stress under rated load, eliminating abnormal shaking during lifting operations.
Case 3: Tarim Oilfield, Tool Hydraulic Station, 33MPa high load. Failed 1300126712 overflow valve caused hydraulic overpressure fluctuation. After valve replacement, system pressure fluctuation was controlled within 0.5MPa, restoring stable hydraulic power output for supporting equipment.
Case 4: Shengli Oilfield, Drilling Guide System, 28MPa working pressure. Worn grade Ⅲ guide section caused unsmooth equipment movement. After installing new guide components, structural movement resistance reduced significantly, ensuring continuous and stable drilling operation.
Frequently Asked Questions
Question | Professional Answer |
What equipment does DH350-L3050 elevator adapt to? | The 1200368857 DH350-L3050 elevator is specially matched with land drilling rig hoisting systems, suitable for heavy-load drill string lifting and handling operations in conventional oilfield drilling. |
What causes hydraulic station pressure instability? | Pressure instability mainly stems from overflow valve failure, blocked drilling fluid valves and aging piston seals. Replacing original matching accessories effectively solves pressure fluctuation and unsmooth fluid circulation. |
What is the difference between 4.5-inch and 5.5-inch dies? | The two die specifications correspond to different drill string diameters. The matched die support and centering ring ensure precise clamping and positioning, avoiding mismatched assembly causing structural vibration. |
How to extend friction bushing service life? | Regular lubrication and dust cleaning can reduce friction wear. Standardized maintenance enables friction bushings to maintain stable performance for more than 7700 working hours in field environments. |
Are DQ027 parts compatible with standard tool hydraulic stations? | All DQ027 series hydraulic station and structural accessories are fully compatible with conventional drilling tool hydraulic stations, meeting API standard assembly and operational requirements. |
Procurement Reference and Product Value Explanation
This series of 1200368857, DQ026 and DQ027 series oilfield spare parts strictly implement API 6A and API 7K international industry standards, with complete dimensional inspection reports and performance test data to support engineering verification. All products are professionally manufactured and supplied for oilfield drilling hoisting equipment and tool hydraulic stations, effectively solving common on-site technical problems including positioning deviation, hydraulic pressure instability, structural friction wear and hoisting jamming. With exclusive long-cycle field operation data and professional engineer practical maintenance experience, these products provide reliable technical fault-solving standards and standardized procurement basis for global oilfield engineering projects. The full-series specification coverage meets the matching demands of mainstream drilling equipment, allowing professional procurement and maintenance teams to select accurate models according to actual equipment parameters and field working conditions, optimizing equipment operational stability and reducing overall field maintenance costs.