The Horizontal Drilling of Henrietta Field, Michigan: A Reactivated Ancient Impact Crater Forming Trenton-Black River Hydrothermal Reservoirs
In 1979 Total discovered the Henrietta Field, a faulted Trenton-Black River field in Jackson County of southern Michigan. The Field produced only 26,023 BO before abandonment in 1985. Further seismic, gravity, and drilling by West Bay Exploration and Jordan Development in 2010 has defined the Henrietta area as a highly faulted circular feature related to the reactivation of a Pre- Ordovician impact crater. Other fields which produce oil and gas from apparent impact structure were studied to better understand Henrietta reservoir characteristics. A small 3D seismic survey was recorded on the west side of the Henrietta impact structure and a horizontal well was drilled to evaluate the numerous faults identified on the survey. This wellbore encountered non reservoir dolomite and was abandoned. A second well drilled to evaluate the central uplift of the impact crater resulted in an oil well completion and has subsequently produced 70,000 BO and 0.2 BCF of gas.
AAPG Datapages/Search and Discovery Article #90373 © 2019 AAPG Eastern Section Meeting, Energy from the Heartland, Columbus, Ohio, October 12-16, 2019