Presentación de resultados

“Maximum Permissible Doglegs in Rotary Boreholes” by Arthur Lubinski, Publication No. 55, February 1960. This paper presents means for spec-ifying maximum permissible changes of hole angle to ensure a trouble-free hole.

“What You Should Know About Kellys” by Doyle W. Brinegar, Publication No. 81 (reprinted from Oil

& Gas Journal, May 1977). This article answers a number of questions pertaining to kellys, includ-ing: why kellys become unusable, the effects of manufacture on kelly performance, interpreting drive edge wear patterns and kelly repair.

“Qualified Inspectors: The Key to Maximum Drill Collar Life” by W.R. Garrett, Publication No. 82 (reprinted from World Oil, March 1977) explains the importance of inspection services, in terms of obtaining the maximum amount of trouble-free service out of a drill collar before needing repair.

“Down-Hole Failure of Drilling Tools” by B.P. Faas, Publication No. 32 (reprinted from Drilling Contractor, May and June 1970). In this article, the author summarizes a study conducted by Standard Oil Co. which examines the cause of downhole drilling equipment failures. This detailed examination attempts to determine if there are any deficiencies in steel or fabrication procedures which could be corrected so that the likelihood of additional failures could be reduced.

“Drill Pipe Fatigue Failure” by H.M. Rollins, Publication No. 34 (reprinted from Oil & Gas Journal, April 1966). The author in the article explains the nature of drill pipe failure, and identifies seven steps that can be taken to minimize fatigue damage.

“Drill Stem Failures Due to H₂S” by H.M. Rollins, Publication No. 52 (reprinted from Oil & Gas Journal, January 1966), discusses the results of many investigations involving tubing failures, talks about drill pipe failures specifically and rec-ommends practices that help to cope with H₂S.

“Straight Hole Drilling” by H.M. Rollins, Publication No. 18 (reprinted from World Oil, March and April 1963), covers “Why Holes Go Crooked” and what you can do to prevent exces-sive hole angle build-up.

“How to Drill a Usable Hole” by Gerald E. Wilson, Publication No. 39 (reprinted from World Oil, September 1976). This brochure of pictures and examples explains how to control hole deviation, reasons holes become crooked and problems that can result.

“Drilling Straight Holes in Crooked Hole Country” Publication No. 59. These tables will permit you to predict the effect on hole inclina-tion, changes in weight, drill collar size and the use of stabilizers.

“Using Large Drill Collars Successfully” by Doyle Brinegar and Sam Crews, Publication No. 21 (reprinted from Journal of Petroleum Technology, August 1970). Article discusses use of large drill collars in the 9 to 11 in. size range.

“How to Bridge Drill Pipes’ Zone of Destruction”

by Charlie Miller, Publication No. 72 (reprinted from Drilling DCW Magazine, June 1973). The author explains the major causes of twistoffs and washouts in the drill string, and offers solutions for correcting the problem — namely Drilco’s Hevi-Wate drill pipe.

“Heavy-Wall Drill Pipe A Key Member of the Drill Stem” by Morris E. Rowe, Publication No. 45, September 1976, discusses currently available drilling technologies utilizing heavy-wall drill pipe, and attempts to solve fatigue failure problems.

“Bit Stabilization Effective Method to Prolong Bit Life” by G.M. Purswell, Publication No. 50 (reprinted from Oilweek, December 1967), recognizes that bit stabilization is an effective method for prolonging rock bit life and obtaining greater penetration rates.

Purswell points out that stabilization “forces the bit to rotate around its own center.” Numerous config-urations of semi-packed or packed bottom-hole assemblies are reviewed and discussed as to their application for bit stabilization.

“How to Select Bottom Hole Drilling Assemblies”

by Gerald E. Wilson, Publication No. 62 (reprinted from Petroleum Engineer, April 1979), identifies and compares a number of bottom-hole assemblies that can be used when drilling in crooked hole areas.

The primary factor affecting selection of the assem-bly is the crooked hole tendencies of the formations to be penetrated.

“Predicting Bottomhole Assembly Performance”

by J.S. Williamson and A. Lubinski, Publication No. 98 (reprinted IADC/SPE 14764 from IADC/SPE Drilling Conference, February 1986). This paper dis-cusses a computer program for the prediction of bottom-hole assembly performance. Input parame-ters include: formation dip, hole and collar size, stabilizer spacing, etc. Output may be hole curva-ture, hole angle or WOB.

“An Engineering Approach to Stabilization Selection” by G.K. McKown and J.S. Williamson, Publication No. 99 (reprinted IADC/SPE 14766 from IADC/SPE Drilling Conference, February 1986). This paper discusses a means of selecting stabilizers based on applications and drilling con-ditions. Experimental wear data and computer analyses of the effects of stabilizer design on bottom-hole assembly performance are offered.

“Degassing of Drilling Fluids” by Walter E.

Liljestrand, Publication No. 43 (reprinted from Oil & Gas Journal, February 1980). The purpose of this paper is to broadly cover the subject of degassing. It outlines the problems and discusses the steps that must be taken to remove the gas.

There are several ways to take each step because there are different types of degassers shown, yet each can do the job. Some examples of mud problems are also shown.

“A User’s Guide to Drill String Hardfacing” by J. Steve Williamson and Jim B. Bolton, Publication No. 100 (reprinted from Petroleum Engineering International, September 1983). This paper dis-cusses drill string hardfacings, welding processes and important metallurgical variables involved. The importance of proper tungsten carbide selection is emphasized. Experimental results are discussed for casing wear by hardfacings and for hardfacing wear resistance. Guidelines are given for hardfac-ing selection based on tests and field experience.

“What is the Condition of Your Downhole Tools and How Are They Being Repaired”

by Doyle W. Brinegar, Publication No. DR - 1009 (reprinted from SPE/IADC No. 18702 presented at the SPE/IADC Drilling Conference, March 1989).

This paper discusses the repair and reuse of down-hole drilling equipment, along with inspection methods. One of the objectives of this paper is to review repair methods that are used to increase the life of downhole tools. Particular attention is paid to welding procedures.

“Drill String Design Optimization for High-Angle Wells” by George K. McKown, Publication No. DR-1002 (reprinted from SPE/IADC Drilling Conference, March 1989). This paper discusses drill string design for high-angle wells and how to optimize for all the required functions of the drill string. Practical considerations for drill string design for high-angle wells and systematic approaches to the design process are presented.

When ordering publications from Smith, please indicate the publication number you are interested in and address your request to:

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P.O. Box 60068

Houston, TX 77205-0068 Or call your Smith representative.

INDEX

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