PWL Spearhead Base
PWL Spearhead Base
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The spearhead base, also known as a spearhead or spearpoint, is a specialized tool that serves an essential function in the retrieval of core samples from the subsurface. It is a component of the core barrel assembly and is located at the bottom of the inner tube, where the core samples are collected. The spearhead base is designed to facilitate the initial engagement and capturing of the core sample as the drilling process progresses.
The primary purpose of the spearhead base is to securely hold the core sample as it is being extracted from the geological formation. As the core barrel is lowered into the borehole, the spearhead base penetrates the rock or sediment, allowing the core to be captured within the inner tube. This mechanism ensures that the core sample remains intact and doesn't break apart during retrieval, which is crucial for maintaining the sample's geological and structural integrity.
The design of the spearhead base includes features such as cutting edges, serrations, or other mechanisms that aid in gripping and securing the core sample. These features vary depending on the type of geological formation being drilled, as different rock types and sediment structures require different methods of engagement.
PWL Core Barrel
A PWL core barrel typically comprises several key components, including an outer tube, inner tube, and a core lifter. The core lifter is a critical mechanism designed to securely hold and extract the core sample from the geological formation. The inner tube is used to collect the core sample, while the outer tube provides protection to the core sample during drilling and retrieval. PWL core barrels adhere to specific dimensions, with an inner tube diameter of approximately 3.375 inches (85.7 millimetres).
This standardized size allows PWL core barrels to be compatible with a variety of drilling equipment and systems. PWL core barrels are widely used in drilling projects related to mineral exploration, environmental studies, geotechnical investigations, and other applications that require a larger core sample for in-depth analysis.
Our Core Barrel Components
Our Core Barrel Accessories is a comprehensive collection of specialized tools and components designed to enhance and optimize the core barrel drilling process. Developed by industry experts with extensive knowledge in core sampling and exploration, these accessories offer practical solutions to overcome challenges and maximize efficiency in various geological and mining applications.