. Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California. lue prints will be filed in an ordinary fetter cab-inet, being folded so fhaf tit/e numbers are visib/e wit/iout unfo/d-ing the c/rawmg. As an aid fo ^ciic^ ancf tin/form cfraffing. a gu/cte beneath the fra-cing shou/d hai/e the sca/e and necessary vertica/ /ines. ?Symbo/s are simphfied so that they can 6e made with a right finepen at the same time that cfividing fines between formationsare made Ordinarily, ffie symSof alone wi// suffice withoutname of formation. The various
. Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California. lue prints will be filed in an ordinary fetter cab-inet, being folded so fhaf tit/e numbers are visib/e wit/iout unfo/d-ing the c/rawmg. As an aid fo ^ciic^ ancf tin/form cfraffing. a gu/cte beneath the fra-cing shou/d hai/e the sca/e and necessary vertica/ /ines. ?Symbo/s are simphfied so that they can 6e made with a right finepen at the same time that cfividing fines between formationsare made Ordinarily, ffie symSof alone wi// suffice withoutname of formation. The various drawings of individual wells, along some approximatelystraight line on the ground, are grouped on a single drawing called across section. They must be properly located on the drawing, relativeto distances apart and elevations above sea level. FIRST ANNUAL REPORT. 17 The appearance of such a cross section and its value are illustratedby the following sketch (Fig. 13) of the bottom of four wells in the Coalinga field. Fig:jre 13 -CROSS-SECTION 5how/ng underprdi/nd re/ef/on of four o// ^e//s /n f/)e COALINGA water sand 2—27014 18 STATE Olli AND GAS SUPERVISOR. The wells were drilled in order as numbered. The strata are notbent or deformed in this particular locality. In each well the was intended to shut off the water occurring above the oil sands,and in well No. 3 it was landed at a depth of 1880 ft., in conformitywith successful results at No. 1 and No. 2. However, the sand between1980 ft. and 2016 ft. was found to contain some oil and considerablewater, hence it was necessary to use more casing to shut off this some experimenting was necessary, two strings, the S^-in. at2033 ft. and the 6f-in. at 2098 ft., were used. Had all conditions beenknown beforehand only one string would have been necessary, but whenthe 8i-in. casing was landed and the well drilled deeper more Avaterwas encountered and the 6f-in. casing had to be used. The final oilstri
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Keywords: ., bookauthorcaliforn, bookcentury1800, bookdecade1850, bookyear1853
