When stuck between a rock and a hard place, I was determined to come up with a solution to penetrate very coarse alluvial gravels, where traditional split spoon and Shelby-tube sampling methods could not.
The BLN Sample Hammer, the proprietary technology I developed, offers an alternative sampling method compatible with air rotary and air rotary casing advance systems. The technology combines the power of an air hammer with the superior sample quality once only associated with sonic drilling methodologies. It consists of a specially designed air hammer body and dual-tube core barrel to reduce sample refusal — all while providing excellent sample recovery in most unconsolidated formations.