288 DEEP BOREHOLE SURVEYS AND PROBLEMS 



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 MuLLOR, F. G. D.: Much Trouble Caused by Crooked Holes, O.W., pp. 



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1930. 

 Nelson, T. M. : Crooked Holes, Popular Mechanics, pp. 760-765, May, 1929. 

 Owens, J. S. : A New Instrument for Surveying Boreholes, T.I.M.M., 



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 Pardee, H. N. : Causes and Prevention of Crooked Cable Tool Holes, 



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 Parsons, A. T. : Timeliness Important in Checking Deviation of Crooked 



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1929. 

 Peele, R. : Deviation of Boreholes and Methods of Surveys, ' ' Mining Engi- 

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 Pennington, H. : Crooked-hole Problem, O.G.J. , p. 32, Bibliography, Mar. 



14, 1929. 

 Peterson, W. : Kiruna Instrument, J.A., p. 224, 1922. 

 Power, J. : Drilling Contractor Develops Method of Keeping Holes Straight, 



N.P.N., p. 63, Apr. 10, 1929. 



: Progress in Charting Bore Vagaries, p. 458, E.M.J., Sept. 21, 1929. 



Redick, F. : Crooked Holes, Iraan. Tex., Jan. 24, 1929. 

 Redmayne, R. a. S. : "Modern Practice in Mining," Vol. 1, p. 172, 

 Reinhold, T.: Photographic Apparatus, Pat. No. 226,079; C.G., p. 570, 



August, 1926; Pet., No. 19. 

 Risen, C. O. and J. R. Bunn: Petroleum Engineering in the Cromwell Oil 



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 Robinson, J. F. and J. A. Montgomery: Deep Drilling in the Appalachian 



Field with Cable Tools, O.F.E., pp. 26-31, Aug. 1, 1928. 

 Robinson, R. R. : Straightening Crooked Holes with Orientated Whipstock, 



O.F.E., p. 19, March, 1930. 

 RuMPF, K. and P. Kleinhenn: Apparat fur Bestimmung von Abweichung 



des innern Durchmesser von Rohren, Pet., No. 14. p. 430. 

 Russell, J. H. : Heavy Penalties of Crooked Hole, O.G.J. , p. 104, Apr, 4, 



1929. 

 ScLATER, K. C, and J. Stephenson: Method of Obtaining Bottom-hole 



Data, O.G.J., p. 114, Oct. 25, 1928; also N.P.N., p. 59, Oct. 31, 1928. 

 ScLATER, K. C: Straight-hole Drilling, P.E., p. 21, October, 1929. 

 ScHLUSSELBERG, M. : Einige Ursachen der Entstehung von krummen 



Bohrlochern und davon Behebung, Pet, No. 49, p. 1628, 1930. 

 Schmidt, F.: On Basket Plumbing, T.I.M.E., Vol. 52, No. 2, p. 178, 1916- 



1917. 

 ScHUEMANN, A.: "Die Baumaschinen," Vol. 2, p. 119, Leipzig, 1924. 

 Schneider, A.: Der Stratameter von Gothan, M.M., p. 37, 1902. 



