. Bulletin. paper a bhick carbon paperwith the carbonized sidefacing the back of thevelhim paper, so that thetypewriter will print onbotli the face and backof the log. In figure 6 onh^ thelower 900 feet are shown,as the operator is mostinterested in the holenear the oil zone. Ifsome casing should hap-pen to be sidetrackedhigher up in the hx)le itcan be shown by meansof a break in the log—for example, in this loga break may be madeat 1,300 feet to showany sidetracked materialfrom, say, 800 to 1,050feet. This can be plot-ted above the break. In showing the workon the well graphically,the enginee
. Bulletin. paper a bhick carbon paperwith the carbonized sidefacing the back of thevelhim paper, so that thetypewriter will print onbotli the face and backof the log. In figure 6 onh^ thelower 900 feet are shown,as the operator is mostinterested in the holenear the oil zone. Ifsome casing should hap-pen to be sidetrackedhigher up in the hx)le itcan be shown by meansof a break in the log—for example, in this loga break may be madeat 1,300 feet to showany sidetracked materialfrom, say, 800 to 1,050feet. This can be plot-ted above the break. In showing the workon the well graphically,the engineer should adoptcertain symbols for ce-mented casing, cement,wood, brick plugs, side-tracked casing, lost tools, so that all writtenexplanation possible maybe omitted. Symbols andal)breviations should beused wherever possiblein all the plotting. Each successive job isshown at the left andplotted at the correspond-ing horizontal depth op-posite the can be accomplishedby having a ruled form. el-1948 1955 Fif; <).—Historical graphic well log stiowing his-torj and grapliic presentation of work on well ona sheet Si by 11 inches. 34 UNDERGROUND CONDITIONS IN OIL FIELDS. underneath the paper. On this form the horizontal lines represent-ing 10-foot and 100-foot subdivisions should extend across from theformations to the left-hand side of the log. In the history as shown in figure 6, each job has a separate heading,emphasized by capitalization or italics—for example, OriginalDrilling, Deepened, Eedrilled, etc., are capitalized. Under each job, the histor} is subdivided according to the workdone while carrying a certain size string of casing. Starting withthe original drilling, a brief statement is given showing the depthof the original casing, perforations, and initial production. In thisparticular well, it shows the well completed April 13,1913, at a depthof 1,800 feet. The first complete monthly production was in June, 1913, when the well made 1,372 barr
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectminesandmineralresou
