Core Drilling Equipment

Product Description：
The YGQY-800 machine’s crawler undercarriage is driven directly by hydraulic motors, allowing for stepless speed adjustment and single-side steering—a feature that facilitates maneuvering in confined spaces and eliminates the need for repeated reversing to correct direction during relocation. Built as a full set of reliable core drilling equipment, the unit is supplied as a complete package configured for BQ, NQ, and HQ wireline core drilling systems, including inner and outer tube assemblies, overshots, core lifters, reamers, and other essential accessories; this allows customers to obtain everything required to begin drilling with a single order, sparing them the need to source individual components separately. The hydraulic tank is equipped with air and return-line filtration, and critical components are fitted with dust covers and protective guards. Such thoughtful construction makes this core drilling rig well-suited for dusty, high-humidity field environments and helps prevent valve sticking caused by hydraulic fluid contamination.

Product Features:
1. Short drive train, low failure rate: A hydraulic motor directly drives the power head, eliminating mechanical transmission components such as vertical shafts, chucks, and hoist gearboxes. With fewer wear-prone parts, daily maintenance is simplified, and downtime for repairs is minimized.
2. One-person operation for the entire process: All tasks—including mast erection, rod clamping, making up/breaking out drill strings, hoisting, feeding, and rotation—are controlled from a centralized console. This eliminates the need for additional personnel, significantly reducing labor costs.
3. Fully equipped and ready for immediate use: The system comes with a complete set of accessories, including inner and outer tube assemblies, core retrievers, core lifters, and reamers. There is no need to source individual components separately; drilling can begin as soon as the equipment arrives on-site.
4. Dust-proof and moisture-resistant design for harsh field environments: The hydraulic tank is equipped with air and return-line filtration, and critical rotating parts are protected by guards. This prevents valve components from jamming in dusty or high-humidity conditions, ensuring high equipment uptime.
5. Low incidence of downhole accidents: Core retrieval without pulling the drill string reduces the suction effect on borehole walls. Furthermore, the drill string is continuously guided by rails, which lowers the risk of borehole collapse, drill string burial, or jamming, making deep-hole operations safer.

Product Specifications:

[Important Notice] Products are subject to continuous improvement; changes may occur without prior notice. Please refer to the actual product.

Application Scenarios：
1. Can be used for coring operations in energy-related exploratory wells—such as those for coalbed methane and shale gas—to provide continuous core samples and data on coal seam intervals. When combined with desorption and gas content testing, this facilitates the assessment of resource potential.
2. Suitable for the remediation and reinforcement of high-risk reservoirs, as well as for dam safety evaluations. It enables the extraction of undisturbed core samples from dam fill materials, foundation overburden, and impervious zones, which helps identify seepage pathways, weak interlayers, and dissolution features, thereby providing a basis for reinforcement strategies.
3. In the exploration of potash and lithium-bearing brines in salt lakes, it can be used for continuous coring of salt layers and brine-bearing reservoirs. When integrated with zonal water shut-off and brine sampling, it allows for the characterization of salt layer structures, the thickness of brine-bearing reservoirs, and the distribution of mineral grades.