When nuclear war breaks out, I'm pretty sure the only things that will survive are cockroaches and One Tree Hill. For those not in the know, One Tree Hill is a teen drama that began airing on the WB in the fall of 2003, and then moved to the then-new CW network in the fall of 2006. Created by Mark Schwahn, the show didn't start off bad. Bethany Joy Lenz found “One of These Days” on InkTip, and with her partner, Sid Mallya, optioned it from Phyllis Heltay. Lenz’s credits as an actor include “Dexter” and nine seasons on “One Tree Hill,” where she also served as a direc-tor. Matthew Bissonnette is set to direct the newly acquired “One of These Days.”.
Drilco Drilling Assembly Handbook.pdf Free Download Here DRILLING. Smith Services — Drilco Group Product Management DRILCO Tubulars and Tubular Services. Head assembly procedure Prevent Rotary Shouldered Connection Failures. Rigging Handbook.pdf Free Download Here The sign of higher standards.
USH1329H - Drill collar connections - Google Patents USH1329H - Drill collar connections - Google Patents Drill collar connections Info Publication number USH1329H USH1329H US07875172 US87517292A USH1329H US H1329 H USH1329 H US H1329H US 07875172 US07875172 US 07875172 US 87517292 A US87517292 A US 87517292A US H1329 H USH1329 H US H1329H Authority US Grant status Grant Patent type Prior art keywords box pin threads member inches Prior art date 1992-04-28 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Abandoned Application number US07875172 Inventor Jeffrey R. Bailey Richard P. McBride Mark C. Moyer James B. Day Current Assignee (The listed assignees may be inaccurate.
Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) ExxonMobil Upstream Research Co Original Assignee ExxonMobil Upstream Research Co Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) 1992-04-28 Filing date 1992-04-28 Publication date 1994-07-05 Grant date 1994-07-05 Links • • • • • Images • • • • • • Classifications • • E— FIXED CONSTRUCTIONS • E21— EARTH DRILLING; MINING • E21B— EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS • E21B17/00— Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings • E21B17/16— Drill collars • • E— FIXED CONSTRUCTIONS • E21— EARTH DRILLING; MINING • E21B— EARTH DRILLING, e.g.
DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS • E21B17/00— Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings • E21B17/02— Couplings; joints • E21B17/04— Couplings; joints between rod or the like and bit or between rod and rod or the like • E21B17/042— Couplings; joints between rod or the like and bit or between rod and rod or the like threaded Abstract. A threaded connection with improved fatigue-life useful for connecting adjacent sections of a pipe string subject to bending, tensile, and compressive stresses such as a drill collar string is disclosed. Softplan 2016 plan set. The connection comprises a pin member which is threadedly engageable with a corresponding box member. In the preferred embodiment, the inventive connection is designed to have bending strength ratio ('BSR') of about 3.20 or greater, and more preferably, in a range between about 3. Bioquimica de harper 28 edicion pdf descargar para. 20 and about 4.00. The preferred thread form of the connection is a V-type thread form having two flank angles of 30 degrees and a 0.038 inch root radius.
Pilot Scripts Pdf
Other design features may be used in combination with the threaded connection to further improve the connection's fatigue-life. Such design features include a tapered pin bore, an increased root radius for selected box threads, an internal box stress relief groove, a box bore stress relief groove, an extended pin relief groove, and modification of the API boreback box design to provide an increased number of threads having full threaded engagement. FIELD OF THE INVENTION The present invention relates generally to threaded connections for use in connecting adjacent sections of a pipe string.
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More particularly, but not by way of limitation, the invention pertains to threaded connections with improved fatigue life for use in connecting adjacent sections of a drill collar string or bottom-hole assembly which is subject to bending, compressive, tensile, and torsional stresses. BACKGROUND OF THE INVENTION Threaded connections for use in connecting adjacent sections of a pipe string are well known. In the oil and gas industry, threaded connections have long been used in a wide variety of applications, such as connecting adjacent sections of a well Casing, a drill string, or a pipeline. As seen in FIG. 1, the drill string used for drilling into underground oil and gas reservoirs includes at least a drillpipe string 10, a drill collar string 12, and a drill bit 14.