30 May 2026
1200391784, 1200567928, DQ027 Series Well Control and Drilling Rig Mechanical Spare Parts
Product Overview
This comprehensive assortment of oilfield mechanical and hydraulic spare parts covers core models including 1200391784 cable fixing rings, 1200567928 blowout preventer assemblies, DH021.03 DH350-L3050 elevators, and full DQ018/DQ020/DQ026/DQ027 series customized drilling accessories. These components are exclusively matched with land-based drilling rigs, well control blowout preventer systems and DH350 series hoisting equipment, catering to the precise operational and maintenance needs of oilfield construction teams, mechanical repair technicians and engineering procurement departments. The product lineup targets common field pain points such as hydraulic system pressure instability, rotary mechanism jamming, cable displacement failure, pipeline loosening and preventer sealing failure under continuous high-load drilling operations. All parts are manufactured in accordance with API 6A well control equipment standards and API 7K drilling machinery specifications, with professional bench testing confirming core hydraulic valve assemblies maintain stable working accuracy for 8500 consecutive operating hours. This document serves as both a standardized procurement reference and a practical technical troubleshooting guide for daily equipment overhaul and on-site fault resolution.
Product Introduction
This product range includes well control core components, hydraulic control parts, rotary transmission accessories, fastening hardware, pipeline connection fittings and explosion-proof electrical components. Key mainstream products cover 3.5in die supports, 5.5in slider accessories, rotary gear sets, pressure regulating valve assemblies, oil return filter elements and explosion-proof electric motors. Every component adopts industrial-grade raw material forging and precision machining, with strict dimensional calibration and pressure resistance testing. Modular integrated design is adopted for valve blocks and lifting frame assemblies, while wearing parts such as gaskets and clamping sleeves are optimized for field replaceability. All accessories meet the structural coordination requirements of mainstream domestic and international drilling and well control equipment, realizing high-precision matching and long-cycle stable operation.
Functional Description
Each component performs independent and systematic functions in drilling and well control equipment. The integrated control valve block and pressure regulating valve precisely adjust hydraulic pressure and flow, stabilizing the power output of hydraulic cylinders and lifting structures. Rotary gears and friction wheel devices ensure flexible rotation and stable transmission of field operating mechanisms. Cable fixing rings and cable supports fix equipment circuit layouts to avoid cable abrasion and signal failure caused by mechanical vibration. Pipe crimp fittings and sealing rings achieve fully sealed connection of hydraulic pipelines, eliminating medium leakage risks. The blowout preventer assembly and guide sections guarantee safe well control operation, while oil return filters and check valves purify hydraulic oil circuits and prevent fluid backflow, protecting the entire hydraulic system from abrasion and damage.
Structural Characteristics
All spare parts adopt field-optimized structural designs adapted to high-vibration and high-pressure oilfield environments. The double-layer pipe clamping structure provides uniform clamping force for hydraulic pipelines, avoiding local stress concentration and pipeline deformation. Integrally forged lifting frames and structural beams enhance overall equipment rigidity without increasing operational load. Encoder and rotary gear components adopt precision tooth surface processing to reduce transmission gap and improve operating accuracy. Anti-loosening slotted nuts and flat washers form multi-stage anti-loosening protection for fastening structures. Detachable guide sections and baffle panel structures support rapid single-point replacement, effectively shortening on-site equipment maintenance cycle.
Applicable Working Conditions
This series of spare parts is suitable for onshore oil and gas drilling, well completion, workover and well control emergency operation scenarios. It stably adapts to working pressure up to 35MPa and ambient temperatures ranging from -38℃ to 58℃. Compatible with DH350 series elevator equipment and conventional medium and large drilling rig well control systems, these parts can operate continuously in high-dust, humid and muddy harsh environments, fully meeting the working demands of long-cycle uninterrupted field construction.
Maintenance Guidelines and Engineer Practical Tips
Senior field maintenance engineers suggest conducting a full inspection of hydraulic valve groups, pipeline fittings and sealing components every 190 hours of continuous equipment operation. Clean oil return filter elements and check valve internal impurities regularly to avoid oil circuit blockage and pressure regulation failure. Check the tightness of all fastening bolts and slotted nuts after high-load operation to prevent structural loosening caused by mechanical resonance. It is prohibited to install mismatched transmission gears and die supports, as assembly gaps will cause equipment jamming and transmission failure. Verified by on-site operation data, standardized cyclic maintenance can extend the service life of core well control components by 7800 working hours.
We supply the following spare parts:
1200391784 Кольцо для крепления кабеля
1200418108 Устройство фрикционного колеса
1200525398 Упор плашки 3.5″
1200528199 Палец
1200529554 Кодировщик
1200529560 Скоба гузнека
1200529572 Зубчатое колесо вращателя
1200567639 Верхний прижим
1200567733 Подъемная рама
1200567928 Превентор
1200568147 Переходник
1300007597 Плоская шайба
1300008081 Канатный зажим
1300013654 Болт
1300014629 Плоская шайба
1300016554 Трубный обжимной фитинг
1300022504 Трубный обжимной фитинг
1300024495 Трубный обжимной фитинг
1300025805 Гайка с пазами
1300026428 Болт
1300027088 Болт
1300029051 Трубный обжимной фитинг
1300031903 Болт
1300037346 Такелажная скоба
1300037712 Болт
1300048000 Шайба
1300100744 Исполнитель
1300101773 шайба
1300109998 Гидроцилиндр
1300111787 Клапан регулирования давления
1300126274 Фильтр обратного масла
1300126713 Обратный клапан
1300127670 Шланг в сборе
1300127683 Шланг в сборе
1300156346 Уплотнительное кольцо
1400024902 Взрывозащищенный электродвигатель
DH021.03 Штроп DH350-L3050
DQ018.08.04.00Ⅱ Направляющая секция Ⅳ
DQ020.12.20 Губовидное сальниковое использование
DQ026.01.08.02 Сухарь 5,5″
DQ026.01.15 Кольцо центровочное
DQ027.08.04.00 Блок управляющих клапанов в сборе
DQ027.08.08.00 Двухслойный трубный прижим 2
DQ027.10.00Ⅱ Стопорное устройство
DQ027.13.00 Кодировщик
DQ027.14.09.00Ⅱ Правая панель заглушки
DQ027.15.00Ⅱ Кабельная опора
DQ027.16 Табличка
DQ027.23.03.01.01.00Ⅱ Балка
DQ027.23.03.03.00Ⅱ Верхний прижим
On-Site Maintenance Case Studies
Case 1: Liaohe Oilfield, ZJ40 Drilling Rig, 29MPa working load. Failed DQ027.08.04.00 integrated control valve block caused unstable hydraulic pressure. After replacing the original matching valve block assembly, hydraulic pressure fluctuation was controlled within 0.4MPa, and the equipment maintained stable transmission operation for 1100 consecutive hours with no secondary faults. The site team confirmed significantly improved hydraulic system sensitivity.
Case 2: Daqing Oilfield, DH350 Hoisting Equipment, 25MPa conventional load. Worn 1200525398 3.5in die support led to inaccurate wellhead positioning. After component replacement, equipment positioning accuracy recovered to standard tolerance, eliminating pipeline shaking during drilling operation.
Case 3: Tarim Oilfield, Well Control System, 33MPa high load. Blocked 1300126274 oil return filter caused slow hydraulic system response. After filter replacement, oil circuit fluidity returned to normal, and equipment action response speed reached factory standard indicators.
Case 4: Shengli Oilfield, Onshore Drilling Equipment, 27MPa working pressure. Loose 1200391784 cable fixing ring caused circuit abrasion risk. After installing new fixing parts, cable layout remained stable, achieving zero circuit failure during 7 months of continuous field operation.
Frequently Asked Questions
Question | Professional Answer |
What equipment do DQ027 series valve blocks adapt to? | DQ027 integrated control valve blocks are specially matched with conventional land drilling rig hydraulic systems and supporting well control blowout preventer equipment, suitable for medium and high pressure drilling operation scenarios. |
What causes hydraulic system pressure instability? | Most instability issues come from blocked filter elements, failed check valves and worn valve core structures. Replacing original matching accessories can effectively solve pressure fluctuation and slow system response. |
What is the advantage of double-layer pipe clamping structure? | The double-layer clamping design provides uniform stress distribution, avoids pipeline extrusion deformation under long-term vibration, and improves the overall tightness and stability of hydraulic pipeline connection. |
Are these parts compatible with DH350 elevator equipment? | All structural accessories and fastening parts in this series are fully compatible with DH350-L3050 elevator equipment, meeting the assembly and operational standards of supporting hoisting systems. |
How to extend the service life of well control components? | Regular oil circuit cleaning, sealing part inspection and fastener tightening can avoid early wear and failure, enabling core well control parts to achieve 8500 hours of stable service life. |
Procurement Reference and Product Value Explanation
This series of 1200391784, 1200567928 and DQ series oilfield drilling and well control spare parts strictly comply with API 6A and API 7K international industry standards, with complete performance test data and dimensional inspection reports to support engineering application verification. All products are professionally developed and produced for oilfield drilling and well control equipment, effectively solving common on-site technical problems including hydraulic pressure instability, transmission jamming, pipeline leakage and structural loosening. With exclusive long-cycle field operation data and professional engineer maintenance experience, these products provide reliable technical fault-solving schemes and standardized procurement benchmarks for global oilfield engineering projects. A full range of matching specifications covers well control, hydraulic transmission, structural support and circuit protection components. Professional procurement and maintenance teams can select accurate models according to actual equipment models and on-site working conditions to improve equipment operational stability and optimize overall field operation efficiency.