﻿D. 
  D. 
  Condit—Deep 
  Wells 
  at 
  Findlay, 
  Ohio. 
  123 
  

  

  Art. 
  XIII. 
  — 
  Deep 
  Wells 
  at 
  Findlay, 
  Ohio; 
  by 
  D. 
  Dale 
  

  

  C0NDIT.* 
  

  

  Findlay 
  lies 
  in 
  the 
  midst 
  of 
  the 
  "Trenton" 
  oil 
  and 
  gas 
  field 
  

   of 
  northwestern 
  Ohio 
  and 
  has 
  been 
  in 
  the 
  foreground 
  as 
  a 
  pro- 
  

   ducer 
  for 
  over 
  thirty 
  years. 
  Until 
  recently 
  all 
  of 
  the 
  produc- 
  

   tion 
  has 
  come 
  from 
  near 
  the 
  top 
  of 
  the 
  so-called 
  " 
  Trenton 
  " 
  

   limestone, 
  but 
  at 
  Tiffin 
  and 
  other 
  localities 
  considerable 
  oil 
  is 
  

   now 
  being 
  found 
  at 
  a 
  horizon 
  600 
  or 
  more 
  feet 
  lower 
  strati- 
  

   graphically. 
  During 
  the 
  summer 
  of 
  1912 
  the 
  citizens 
  of 
  Find- 
  

   lay 
  formed 
  a 
  company 
  with 
  the 
  object 
  of 
  testing 
  the 
  deeper 
  

   strata 
  and 
  determining 
  the 
  " 
  thickness 
  of 
  the 
  Trenton." 
  Drill- 
  

   ing 
  was 
  commenced 
  on 
  the 
  D. 
  L. 
  JSTorris 
  farm 
  in 
  section 
  3, 
  

   Marion 
  Township, 
  about 
  three 
  miles 
  northeast 
  of 
  the 
  city. 
  A 
  

   test 
  well 
  was 
  also 
  started 
  by 
  the 
  Ohio 
  Oil 
  Company 
  on 
  the 
  

   J. 
  H. 
  Grubb 
  farm 
  in 
  section 
  9, 
  Liberty 
  Township. 
  

  

  In 
  November, 
  when 
  the 
  Morris 
  well 
  had 
  been 
  drilled 
  to 
  a 
  

   depth 
  of 
  nearly 
  3000 
  feet, 
  Mr. 
  J. 
  E. 
  Fennerty 
  of 
  Findlay 
  informed 
  

   the 
  United 
  States 
  Geological 
  Survey 
  by 
  telegram 
  : 
  " 
  Well 
  now 
  

   about 
  200 
  feet 
  below 
  Trenton, 
  and 
  drillings 
  indicate 
  granite 
  

   formation, 
  very 
  hard 
  and 
  drill 
  slow." 
  Dr. 
  Johnston, 
  who 
  through 
  

   the 
  courtesy 
  of 
  the 
  Carnegie 
  Geophysical 
  Laboratory 
  has 
  been 
  

   cooperating 
  with 
  the 
  U. 
  S. 
  Geological 
  Survey 
  in 
  deep-well 
  obser- 
  

   vations, 
  went 
  at 
  once 
  to 
  Findlay 
  and 
  recorded 
  temperatures 
  

   in 
  the 
  Norris 
  well, 
  the 
  results 
  of 
  which 
  are 
  set 
  forth 
  in 
  the 
  follow- 
  

   ing 
  article. 
  The 
  writer 
  also 
  visited 
  the 
  locality 
  and 
  obtained 
  

   the 
  log 
  of 
  the 
  well 
  and 
  samples 
  of 
  the 
  drillings. 
  In 
  the 
  Morris 
  

   well 
  no 
  samples 
  were 
  saved 
  until 
  the 
  " 
  bottom 
  of 
  the 
  Trenton" 
  

   was 
  reached 
  at 
  a 
  depth 
  of 
  2755. 
  The 
  samples 
  from 
  the 
  suc- 
  

   ceeding 
  225 
  feet 
  were 
  donated 
  by 
  Mr. 
  J. 
  B. 
  Maxwell, 
  one 
  of 
  

   the 
  drillers. 
  Information 
  concerning 
  the 
  higher 
  strata 
  was 
  

   derived 
  from 
  the 
  Grubb 
  well, 
  which 
  reached 
  a 
  depth 
  of 
  2470 
  

   feet. 
  Credit 
  is 
  due 
  Mr. 
  J. 
  E. 
  Dougherty, 
  the 
  driller, 
  who 
  

   saved 
  a 
  complete 
  set 
  of 
  samples 
  which 
  were 
  given 
  to 
  the 
  Sur- 
  

   vey. 
  A 
  duplicate 
  set 
  was 
  also 
  furnished 
  by 
  Mr. 
  Berry 
  of 
  the 
  

   Ohio 
  Oil 
  Company. 
  Thanks 
  are 
  extended 
  to 
  Mr. 
  Casterline, 
  

   and 
  especially 
  to 
  Mr. 
  Fennerty 
  of 
  Findlay, 
  for 
  their 
  courtesy 
  

   and 
  assistance. 
  

  

  The 
  combined 
  records 
  of 
  the 
  Morris 
  and 
  Grubb 
  wells 
  are 
  of 
  

   unusual 
  geologic 
  interest 
  as 
  the 
  drill 
  passed 
  below 
  the 
  base 
  of 
  

   the 
  Paleozoic 
  and 
  penetrated 
  pre-Cambrian 
  rocks, 
  concerning 
  

   which 
  nothing 
  has 
  been 
  known 
  heretofore 
  in 
  this 
  part 
  of 
  the 
  

   United 
  States. 
  There 
  is 
  given 
  below 
  a 
  geologic 
  section, 
  which 
  

   represents 
  the 
  combined 
  well 
  records. 
  All 
  but 
  the 
  lower 
  610 
  

   feet 
  of 
  the 
  section 
  presents 
  data 
  derived 
  mostly 
  from 
  the 
  Grubb 
  

  

  * 
  Published 
  by 
  permission 
  of 
  the 
  Director 
  of 
  the 
  U. 
  S. 
  Geological 
  Survey. 
  

   Am. 
  Jour. 
  Sci.— 
  Fourth 
  Series, 
  Vol. 
  XXXV, 
  No. 
  212.— 
  August, 
  1913. 
  

  

  