In geotechnical investigation, mineral exploration, and infrastructure design, retrieving undisturbed rock core samples is paramount. Standard double-tube core barrels often fall short in highly fractured, friable, clayey, or weather-softened formations. High water pressures and structural friction can easily wash away or crush the sample. That is where Triple Tube Core Barrel Systems (such as HQ3, PQ3, and NQ3 equivalents) provide a massive scientific leap in core recovery ratio.
A triple tube core barrel adds an evolutionary split inner tube inside the standard inner tube assembly. Water flows between the outer and inner tube, shielding the core. As the drill cuts, the core enters a non-rotating split stainless steel or brass tube. Once retrieval occurs, the split tube can be opened horizontally, allowing the geologist to inspect the undisturbed geological layers in their natural spatial alignment, avoiding the friction damages typical of hydraulic extrusion.
SINOVO advanced manufacturing base focusing on heavy geotechnical structures.
SINOVO Group is a premier professional supplier of construction machinery equipment and complete geological solutions. We serve suppliers, geotechnical contractors, and exploration bureaus globally. Our core backbone members have operated in this sector since the early 1990s. With over two decades of innovation, we have formed long-term strategic alliances with world-class equipment manufacturers and top-tier partners across China, capturing multiple domestic and international export awards.
We have built active trade channels across more than 120 countries and regions. Our structured logistics and service network span five continents, supported by localized service and parts centers in key hubs like Singapore, Dubai, and Algiers.
Quality is not an afterthought; it is our foundation. SINOVO products have obtained ISO9001:2015, CE certification, and GOST compliance, verifying our design, safety standard adherence, and metallurgical consistency.
Our machinery portfolio covers pile construction equipment, heavy-duty hoisting cranes, water well rigs, and advanced geological wireline exploration components including state-of-the-art triple tube systems.
In 2008, SINOVO executed a critical strategic integration by establishing TEG FAR EAST in Singapore to anchor the growing Southeast Asian piling and exploration market. Seeking manufacturing optimization, the company invested 120 million yuan in 2010 to construct a state-of-the-art production hub in the Hebei Xianghe Emerging Industry Demonstration Zone. This facility occupies 67 mu (approximately 44,600 sq. meters) and is located within 100 kilometers of Tianjin Port, offering logistical advantages and minimized export shipping rates.
Currently, Beijing Sinovo International & Sinovo Heavy Industry Co. Ltd. operate with a production base of over 7,800 square meters. The plant integrates more than 50 sets of advanced processing machinery. Our annual production capacity reaches 1,000 units of core drilling rigs, 250 units of water well rigs, and 120 units of heavy rotary piling rigs. Positioned in the industrial corridor of Beijing, we access raw structural steel, hydraulic components, and highly skilled engineering minds, driving down overall cost metrics.
State-of-the-art machining floor in our Xianghe Industrial Demonstration Zone.
To secure a competitive advantage, our research and development division focuses on next-generation core barrels designed to meet challenges in deep geothermal wells, deep-sea deposits, and ultra-complex urban excavations.
Replacing heavy chrome-plated steel liners with lightweight, high-tensile carbon fiber and polymer composite split tubes. This reduces operational weight, speeds up deck handling, and prevents core contamination.
Integrating pressure, temperature, and rotation sensors in the head assembly of the barrel. Real-time telemetry notifies drillers of core blockage immediately, preventing core washing and dry runs.
Developing advanced fluid bypass mechanics that redirect aggressive flushing fluids away from the core tip, protecting fragile unconsolidated sand and soft coal samples.
High-quality core extraction is the foundation of massive capital investments. Our triple tube core barrels are engineered to integrate seamlessly into diverse vertical sectors:
| Industry Vertical | Geological Challenge | Triple Tube Solution Method | Primary Benefit |
|---|---|---|---|
| Infrastructure & Piling | Highly weathered sandstone, siltstone, karst voids | Split inner tube preserves structure of weak zones | Accurate Rock Mass Rating (RMR) calculation |
| Mineral Exploration | Gold-bearing quartz veins, fractured shear zones | Protects mineralized clay and micro-fractures from washouts | Prevents underestimating grade values during assay |
| Hydrogeological Studies | Unconsolidated gravel, marine muds, variable water tables | Piston-style fluid diversion head shields material | Undisturbed sample density for permeability testing |
| Geo-Environmental Dams | Interbedded shale, fault gouge, clay gouges | Core lifter cases specialized for soft clays | Accurate shear strength evaluations of dam foundations |
SINOVO's inventory control, testing lines, and logistics management.
In modern manufacturing, quality is linked to supply chain stability. At SINOVO, we utilize high-precision CNC tube-threading machines to cut clean joints, avoiding thread failure under high rotational torque. Our heat-treatment protocols ensure outer tubes maintain critical hardness parameters, resisting bending and ovalization under high stress.
Our proximity to Tianjin Port allows us to coordinate shipping schedules, handle customs clearances quickly, and protect assemblies against rust during ocean transport. As a designated Customs Class A Enterprise, SINOVO benefits from fast-tracked export pathways, reducing container port-dwelling times and expediting global delivery cycles.
Additionally, we design and produce core barrels matching global wireline standards (NQ3, HQ3, PQ3), ensuring our tooling is compatible with core rigs from international suppliers like Boart Longyear, Sandvik, and Atlas Copco.
Procuring heavy-duty core drilling equipment requires a balance between capital expenditure (CAPEX) and operating costs per meter (OPEX). SINOVO offers transparent quoting structures tailored to complex operations:
Includes standard NQ3, HQ3, PQ3 sizing built to international drill rod specifications. Ideal for large fleets seeking direct interchangeability.
Bespoke alloy formulations, altered water paths, or custom tool joints for specific rigs or uncommon geologic layers.
Bundling core barrels with outer/inner tubes, split liners, diamond core bits, reaming shells, and core lifters to lower project setup costs.
As a long-established drilling rig and core tool manufacturer in China, SINOVO Group operates on a foundation of long-term partnership. We stand behind our engineering with a comprehensive service lifecycle:
Our engineering, production, and R&D divisions include specialists with decades of experience in structural design, hydraulic systems, and metallurgy. This technical team has secured multiple engineering patents, reinforcing our capabilities as a certified High-Tech Enterprise.
Our experienced engineering team at the Beijing headquarters.
Our quality systems are audited annually to maintain active ISO9001:2015, CE, and GOST certifications, assuring consistent steel quality, welding checks, and thread tolerances.
Our compliance portfolio: ISO9001, High Tech Enterprise, and CE Certificates.
Our machinery operates globally, supporting transit networks, foundations, and deep geologic core operations:
Heavy machine testing and structural welding inspection bay.
High-precision lathe milling for drilling connections.
Finished stock warehousing for rapid global dispatch.
To make customers feel secure in using our products we establish a complete after-sales service system.
We have a number of professional technical personnel to ensure quality across all aspects of the product.
During the warranty period, we provide free debugging, operator training and maintenance service.
SINOVO
