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BP CHEMICALS DEEP WELL DATA YIELDS GEOLOGIC TREASURES

 BP CHEMICALS DEEP WELL DATA YIELDS GEOLOGIC TREASURES
 LIMA, Ohio, Feb. 27 /PRNewswire/ -- The public will be able to go back in time some 500 million years at a special exhibit presented by BP Chemicals, March 1-4, at the Lima Civic Center.
 "Exploring the World Beneath Your Feet" features the geologic information obtained from a 3,400 foot strategic test well drilled at BP Lima Chemicals in 1991. Professional geologists have analyzed the rock cores and test data obtained from the well and have been able to create a very accurate picture of the geology in this part of Ohio. On display will be actual sections of the rock layers acquired from the 2,200 feet of rock core removed from the well.
 Jerry Bergosh, a nationally recognized geologist and general manager of RUI Analytical in Salt Lake City, studied and analyzed the information from the test well. "This well has yielded information never before available about this area. We can now determine how and when the earth beneath Allen County was formed, how it has changed over time, and what kinds of living creatures inhabited this part of Ohio millions of years ago," said Bergosh.
 The display takes visitors down through the geologic layers the full 3,400 foot depth of the well, more than 500 million years back through time. Bergosh said, "We begin at ground level and descend first into the underground source of drinking water which goes to about 375 feet beneath the surface. In this uppermost layer, you can see the signs of the glaciers that moved across the land picking up and depositing sand, soil and rocks."
 The Trenton Limestone was encountered at about 1,250 feet. This is the layer which produced the Lima oil boom in the late 1800s. This layer contains good permeability and porosity which allowd oil to accumulate and later be produced.
 The exhibit features six other strata levels including the Cincinnatian, Black River Group, Knox Dolomite, Eau Claire Formation, Mount Simon Sandstone, and the Middle Run Formation. These layers were formed between 400 and 550 million years ago.
 BP launched the extensive underground test well project at Lima Chemicals as part of an environmental demonstration of the safety of on-site deep well operations. The well was drilled to confirm thatt the geology beneath the Lima site was appropriate for the continued use of deep well disposal for certain wastes from the acrylonitrile process. This waste is disposed of in the Mount Simon Sandstone layer.
 Bergosh said, "We found that the Mount Simon formation and the combination of geology in this area of western Ohio is a very, very good, if not an ideal location for a disposal well. The Mount Simon acts as a giant rock sponge which stores and transmits fluid through connected pore spaces. This characteristic, and the fact that the Mount Simon is 2,813 feet below the surface, makes the formation a safe and geologically sound area for deep well disposal."
 According to James W. Walpole, manager BP Lima Chemicals, the data obtained from the project is important not only to the deep well operation at Lima Chemicals, but it also provides unique geologic information which will be very valuable for research for years to come. He said, "The results from the test well clearly demonstrate that the geology in Allen county is appropriate for continued use of deep well disposal, an EPA approved disposal process which eliminates potential emissions to the air or public waterways.
 "The stratigraphic test well and this exhibit are continuing efforts by BP to demonstrate our commitment to protecting the environment while continuing to serve the Lima area," said Walpole.
 "Exploring the World Beneath Your Feet" is free and open to the public on March 1, from 1 to 5 p.m., and March 2,3, and 4, from 4 to 8 p.m.
 More than 1,000 students from surrounding school systems have made reservations for educational tours. Special tours of the exhibit are available March, 2,3 and 4 between 9 a.m. and 1:30 p.m. for school, university and civic groups. To reserve a time for a group tour of the exhibit call, 419-226-1200.
 -0- 2/27/92
 /CONTACT: Judy Gilbert of BP Lima Chemicals, 419-226-1445 or Tony Kozlowski of BP Chemicals (Cleveland), 216-586-5577/ CO: BP Chemicals ST: Ohio IN: SU:


CG -- CL016 -- 3490 02/27/92 17:30 EST
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Date:Feb 27, 1992
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