The High Expansion Pressure Rated Bridge Plug is designed to travel through tubing ID restriction(s) and set in a larger ID tubular below. The purpose of the system is to have a mechanism for ensuring proper deployment of the slips and guarantee accurate compression of the seal elements. The High Expansion Pressure Rated Bridge Plug lower slip is not completely opened and set until the elastomer is sufficiently compressed. Proper placement and anchoring of the slips help ensure proper retention of the elastomer seal elements in the proper position to establish and maintain a pressure tight seal.
US Patent # 7,578,353 and US Patent # 7,743,836