Some New Developments Applicable to Coiled Tubulars

摘要

Some New Developments Applicable to Coiled Tubulars Roderic Kenneth Stanley Roderic Kenneth Stanley Quality Tubing, Inc. Search for other works by this author on: This Site Google Scholar Paper presented at the SPE/ICoTA Coiled Tubing Conference and Exhibition, The Woodlands, Texas, April 2005. Paper Number: SPE-94058-MS https://doi.org/10.2118/94058-MS Published: April 12 2005 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Get Permissions Search Site Citation Stanley, Roderic Kenneth. "Some New Developments Applicable to Coiled Tubulars." Paper presented at the SPE/ICoTA Coiled Tubing Conference and Exhibition, The Woodlands, Texas, April 2005. doi: https://doi.org/10.2118/94058-MS Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Search nav search search input Search input auto suggest search filter All ContentAll ProceedingsSociety of Petroleum Engineers (SPE)SPE/ICoTA Well Intervention Conference and Exhibition Search Advanced Search IntroductionComplacency has little place in coiled tubulars. Here we describe the new techniques that are under investigation for both CT inspection and seamless CT production. The possibility exists to make tubulars by cold compression and to join by microwave sintering methods and amorphous bonding. The probability now exists to monitor all joining processes via the nondestructive acoustic emission technique, advanced ultrasound, and to eliminate the conventional tube-to-tube butt weld.Fatigue life has always been a contentious issue. FLEXOR TU04 now predicts life with outer surface defects present, and is based on real data taken in a CTMRC study. Results of assessment of strings are given. Further, a non-contact NDE method exists for fatigue assessment, so that totally non-contact methods exist for the entire spectrum of CT evaluation.Advanced ultrasonic methods are given for conventional and ADB joining methods. Finally an untethered robotic method for inspection of tubulars from the ID is introduced, and recent data are presented; this method is applicable to risers, refinery tubing, and other hard-to-inspect tubulars.Seamless Coiled Tubing?The possibility of making seamless (SMLS) tubing would eliminate the seam weld and the presence of the internal seam-weld flash.The Penn State U and Dennis Tool (Houston) have been working on the production of SMLS tubing to ASTM 606/607 chemistries and 316L. Work in this area is proceeding under DoE contract DE-FC26–02NT41662 with the PSU as the principal contractor. The technique currently employs cold compression of the appropriate powdered metal, and it was originally proposed to manufacture from a slurry by application of 7 GHz microwaves (Fig 1a). An early example of a 1-ft. sample of 316L that was made from a slurry by cold compression is shown in fig. 1B. This sample tested for tensile strength as follows: YS = 41.9 kpsi, TS = 51.2 kpsi, YM = 17.6 Mpsi. Pieces were also tested using ASTM G311 and G1112 and performed well. Keywords: coiled tubing operations, detection, transducer, artificial intelligence, theoretical fatigue life, wall thickness, flaw, inspection, flexor tu04, weld Subjects: Completion Installation and Operations, Coiled tubing operations This content is only available via PDF. 2005. Society of Petroleum Engineers You can access this article if you purchase or spend a download.