Tool joint pin is connected to one drill pipe end, the tool joint box is connected to the other pipe end. Tubecare apirp 7g 2, standard ds1 and ns2 inspection. Specific task training program drilled shaft foundation construction inspection s32 class reference guide. Standards also helps to compare results and to take decisions on acceptancerejection. The modules are combined with images, videos and exercises for the student to work with. Hours on connections between bha tool joint inspections. Materials can be specified for conformance to standard industry requirements, such as ns1 and individual customer specifications. Unc, unf, unef, uns screw thread gauges to one inch in diameter these series and the unr, unj and fixedpitch series are the inchbased thread series currently used in the united states, and. Slurry cannot be made from native materials, or material from the excavation. Drilling string inspection the dilemma between oil. Drill string design design means determination of length, weight, grades of drill pipe to be used during drilling, coring or any other operation depends on. Tuboscope drill pipe services is the fullservice integrated management program for your drill string. Drill pipe international, llc produces all api connections, double shoulder connections and high torque connections as per api, sour service and ns1.
For purposes of this standard, the drillstring is assumed to extend from the drill bit connection up to. Enclosed page technical specifications 80% remaining body wall description spec. Resume built for oil and gas job opportunities by a jobseeker with experience in ndt asnt level 2 inspector of drill string components such as drill pipes, bha, tools, stabilizers would you like to offer this candidate a jobcontract employment. Thread damage corrosion thread roots of the loaded threads 2 inches from shoulders shall be free. Quality management is the key to ensuring safe, successful, and profitable drilling. Ns2 an integrated approach free download as pdf file. The following are standard tolerances for general machine work and apply in all cases except where greater or lesser accuracy is required by the design. Failure to do so could result in the drill string coming apart and anything thats left would need to be fished out of the hole or if you are unlucky be left in the hole.
Increased web use and the increasing need to obtain quick access to inspection standards ns 2 has been remodelled to embrace the power of the internet and the ns information hub where is it accessed. Frequency and standards are vital in understanding the inspection process of drilling tubulars. I declare in lieu of oath that i did this masters thesis drillpipe failure and its prediction by myself using only the literature cited in the references. Trial shaft a hole for a drilled shaft constructed on the project site, but. Machinist drilling mechanical tolerance capabilites chart ansi size drills, iso metric drill sizes. Each course has an online graded assessment in multichoice format. Drill pipe dp drill pipe body with tool joints welded on using frictionwelding process. Ns2 inspection standard for used proprietary and specialised drilling and well. With the inclusion of a quick search option inspectors can navigate through the ns 2 standard with ease. Hill associates standard ds1 drill stem inspection. Stoody 62, 56 applications are crack free and casing friendly products.
Gary scribner national board of boiler and pressure vessel inspectors manager of technical services headquarters columbus, oh inspection. Ns 2 inspection standard technical analysis when compared with ds1 inspection standard. Tool joint forging plant has capability to produce tool joint with 2 lts and 4 ltslonger than standard. British standard 1580 unified iso, inch screw threads. In addition to standard api 5dp specifications, dpmaster also manufactures drill pipe in accordance with ns1 and th hill critical. Increased web use and the increasing need to obtain quick access to inspection standards ns2 has been remodelled to embrace the power of the internet. There are three main inspection standards for used equipment available within the oil and gas industry. Drill stem is all those members between the swivel and the bit, and it includes drill string, kelly or top drive, subs, drill collars, heavy weight drillpipe, stabilizers. This international standard specifies the technical delivery conditions for steel drillpipes with upset pipebody ends and weldon tool joints for use in. This standard covers the inspection and repair of drillstring components that may be used by a north sea operator. It sets the standard for downhole drilling tools, including manufacturing techniques, inspection. All tool joint and tubular inspection services are carried out in accordance with standards such as api, ds1, and ns2.
Drill string inspection employ standards i api rp 7g. The ds1 is the global standard for drilling equipment specifications and quality assurance. Drill pipe inspection standards search engineering360. Hill ds1, ns2, or any other standards nominated by customer. Tool joint component used to connect drill pipe lengths to form a drill string. This accreditation enforces subdrills commitment to providing its clients with drilling tools and equipment manufactured to the highest. Sigs has been the number one ndt service provider in the middle east and africa region for over 35 years, providing quality nondestructive testing for all your drilling rig needs. The construction of drilled shafts is controlled by design drawings and plans and the idot standard. Inspection of drill string components such as drill pipes, bha, tools, stabilizers. Ds1 cat 5 inspection program for drill pipe tool joint visual connection. Based on the ns 2 standard these information packed courses are broken down into a six module format. Subdrill has recently acquired level 2 ns1tm facility accreditation through the fearnley procter group, a global company focused on the provision of equipment manufacturing and inspection standards to prevent drilling equipment failure in the field.
Ns 2 inspection standard for used proprietary and specialized drilling and. Drill pipe inspection drill pipe inspection is set at regular intervals depending on drilling conditions and past failures experienced. This is the documentation for ns1s api v1, which allows you to manage your zones and records, data sources and feeds, account settings and users, and other aspects of your ns1 account. Failure to do so could result in the drill string coming apart and anything thats left would need to be fished. The iadc definition of a drill string is drillpipe with tool joints attached. We provide inspection services for drill pipe, bottom hole assembly, octg, handling equipment and offshore inspection in accordance with api ds1 ns 2. Specifications and procedures developed by operating companies like pdo in oman, dpe in dubai etc. These are the american petroleum institutes rp7g 2, th hill associates ds1 and fearnley procters ns 2.
No dp502 1,09 1,39 43 300 premium connections data od x id hardbanding material grade 5 od drill pipe, s5, nc50 vam eis conns. Recommended practice for drill stem design and operating limits ii standard ds1 volume 3. Iso 20312 design of aluminium drill string iso 27627 aluminium alloy drill pipe thread gauging iso 28781 subsurface tubing mounted formation barriers. Drill stem inspection primary objectives of this standard are. Standards and specifications smith international gulf. Visual examination of connections, shoulders, and tool joints and profile check of threads, measurement of box swell. Ihs markit is your source for the th hill ds1 in print and pdf download. Fishing and milling tools junk baskets, taper mills, fishing jars etc. Machinist drilling mechanical tolerance capabilites chart. System 22 provides for interchangeable assembly with functional size inspectionevaluation at the maximum material limit within the length of the standard gaging elements, and also inspectionevaluation of the minimum material size pitch diameter or thread groove diameter over the length of the. For purposes of this standard, the drillstring is assumed to extend from the drill bit connection up to but not including the top drive or. Worldwide expertise commitment to research and development full range of drill string services inspection corrosion control hardbanding. Coverage this recommended practice involves not only the selection of drill string members, but also the. Myspread forum hours on connections and when to degauss.
Discussion forum drill string design hours on connections and when to degauss hours on connections and when to degauss 23 september 2011 good folks of the community, can you please educate me as to the latest recommendations for the following. Ns 2 fearnley procter north sea drill string inspection standard inspection. It will also discuss troubleshooting of the problems that may occur. We offer a full range of services including field inspection, quality assurance and quality control and specialist software design and manufacturing. Cv ndt asnt level 2 inspector of drill string components. Dimensional inspection of box od, pin id, pin lead, bevel dia, pin stress relief diameter and width, boreback cylinder dia and thread length and hwdp center upset diameter. Ns2 inspection standard technical analysis when compared. This document provides guidelines and establishes requirements for inspection, maintenance, repair, and remanufacture of items of hoisting equipment manufactured according to api 8a, api 8c, or iso 535 used in drilling and production operations, in order to. Ns2 inspection standard for used proprietary and specialized drilling and. Iso 10407 2 inspection and classification of drill stem elements. Role of ndt in controlling the failure of drill string.
Ns2 an integrated approach fatigue material corrosion scribd. Technical specifications 5 od drill pipe, s5, nc50. Drill pipe inspection standards 120 of 2,856 results. Ns2 fearnley procter north sea drill string inspection standard inspection. Fearnley procter group standard ns 2 drill string inspection standard. Overview of the national board inspection code national board general meeting orlando, fl may 2016 presented by. Tridrill services is ns1 approved for new applications and reapplications for both of these products at its broussard facility. Handling damage, indications of torsional damage, galling, washouts, fins, visibly nonflat shoulders, corrosion, weightgrade. Ds63 hwdp with three spiral wear pads ds63 hwdp with continuous spiral. Dpmaster drill pipe design dp accordance with ns dpmaster manufactures the complete range of api drill pipe products from 2 38 od up to 658 od. Understanding the inspection process for drilling tubulars.