Most sizes of drillpipe tubes come in light weight, standard weight, and one or more heavier than standard weights. In this case, tool joint parts are welded to drill pipe body. Drilling thread types for dummies odfjell well services blog. Dpmaster ds double shoulder connection public release 08 apr 2011 dpmaster ds connection the dpmaster ds connection is a generic api doubleshouldered connection which is well established and field proven around the world.
Tsc weld lines are able to produce more than 12,000 joints per month. The purpose of this chart is to give you an idea of what thread you have. Through design optimization and balancing of stresses, the connections enhanced fatigue resistance eliminates the need for coldrolling drill pipe connections. Dpmaster has engineered, tested and acquired industry approval for two types of doubleshouldered connection. Gpds offers a versatile alternative to standard api connection designs when higher torsional strength and tool joint wear is desired. So here comes a post with the needtoknow basic stuff about drilling connection types. Dpmmt connection is currently available in drill pipe sizes from od 238 to 658. Please contact your rdt representative on which high torque connections are.
The mt connection is an enhanced ds connection with additional 25% torsional strength allowing clients to drill the. Dpmds is fully interchangeable with api connections, new or used on all kind of accessories and drill pipe with api connections. Drill pipe international offers new drill pipe with api threaded connections for each of the various sizes. The ds connection makes up similarly to an api connection and is therefore very user friendly. Specified tool joint od is smaller than the standard api tool joint for 412 drill pipe. Nov 21, 2016 nov grant prideco drill pipe conections. The ds connection is a generic api double shoulder connection, which is widely used throughout the industry in extended reach drilling. Our experienced engineering team provides international engineering support for all major aspects of drilling operations. Sub drill are delighted to announce its appointment as an authorised licensee to machine dpmaster performance connections. Connection outside inside yield yield makeup tool joint tong tong adjusted od for drift displace size type diameter diameter strength strength torque to pipe space space weight prem. Seallock semi flush is an integral casing connection that utilized the latest in finite element analysis and physical testing technology during its development. When the id of the drill collar or tools that mate directly with them is equal to or greater than the reference id, the minimum od listed for each connection in table 3 table a. This additional strength provides the required torque for drilling to extended depths.
Why is drill pipe classified as premium once it has been in the hole, and why is it all of a sudden 20% weaker than new. It can be configured with a smaller od and larger id without sacrificing torsional capacity, which contributes to improved drill string hydraulics. Supplier firm, company, organization that confirms and. The d dimension shown in table 7 does not apply to boxes. When in doubt, send a sample to the manufacturer to be sure. Dt connections are fully interchangeable with other high torque connections. We provide quality assurance and quality control qaqc inspection services for oil and gas operators around the world.
By manufacturing premium connections, as part of an integrated process of pipe manufacturing of maharashtra seamless limited, we assure highest quality products. The drill string is used to transmit power by rotary motion from surface to a drill bit at the bottom of the hole, to convey flushing media to the cutting face of the tool, and to carry cuttings out of the hole. Thomas services api interchangeable connection table. Superior torsional strength torque capacity is 40% to 60% greater than standard api connections for comparable size drill pipe. Dt connections are fully interchangeable with other high torque. Thus, it plays a vital part in the successful drilling of oil and gas wells. Gpds offers a versatile alternative to standard api connection designs when higher operational torque and tool joint wear allowance are desired, and it is fully interchangeable with corresponding api nc or fh.
This higher torsional capacity allows more tool joint od wear than that of an api connection. Fearnley procter group drill pipe and bha inspection. Dpi is based just west of minneapolis, minnesota in winsted, minnesota and is an international manufacturer of quality drill tools. Whether you are an experienced drilling professional or an aspiring one, you will definitely find some useful bits of information here. Addendum 1 to specification for rotary drill stem elements add the following new clause 10. Study the schematic for drill pipe tool joints below to gain a better. Oil drill pipe is seamless tubing which was used to rotates the drill bit and circulates drilling fluid in the well. Premium connections drill pipe connections 3sb premium. Versatile compatibility interchangeable with api industry standard threads and certain other. Please contact your rdt representative on which high torque connections are best for your speci. Drill pipe data tables the following tables provide data for the drill string. There is no published pressure rating for this connection.
Nov grant prideco drill pipe conections slideshare. Our ds is interchangeable with the following api thread connections. Jindal premium connections are manufactured to same quality standard under the quality management system that tenaris uses throughout its global manufacturing system. Subdrill are delighted to announce its appointment as an authorised licensee to machine dpmaster performance connections. Drill string drill pipe lengths made up sequentially. Nominal weight refers to an obsolete standard weight of.
Tsc weld lines are able to produce more than 12,000 joints per month and consistently meet the customers delivery dates. Box inside diameter is at the manufacturers discretion but shall be at least as large as the pin inside diameter, d. New andor used tool joint size might not be suitable for hoisting the drill string with a bottle neck elevator. This higher torsional capacity allows more tool joint od wear than that of an. The connection is also available in a wide range of steel grades including sour service and high strength. At odfjell well services we constantly hear from people who ask us why certain drill pipes dont go together.
We combine innovative technology, reliable product quality and efficient service. It is particularly suited for difficult operations, such as extended and deep drilling, horizontal. Drilling thread types for dummies odfjell well services. Integralmonoblock internal plastic coating tensile yield pipe torsional yield pipe connection type 278 htpac s5 tc2000 28,2 21,6 20 800. Prevent rotary shouldered connection failures jim douglas gagemaker, lp. Xt connections facilitate the use of larger drill pipe in a set hole size, such as 5. Drill pipe thread identification chart kingsland drill. Ssds hightorque connection ssds38 connection tool joint makeup torque. This provides improved hydraulic efficiency, better hole cleaning, and greater buckling strength without compromising torsional strength or fishability.
Texas steel double shoulder tool joint drill pipe connection. Adjusted weight refers to the weight per foot of pipe including the upset but excluding the tool joint based on a length of 29. Delta drill pipe connection national oilwell varco. Mixing of connections definitions fearnley procter.
Drill pipe specs are available to download tsc drill pipe. The xt connections increased torsional strength enables tool joint dimensional optimization that is more aligned with the pipe body torsional strength. Tps double shoulder tpsds drill pipe connection tpsds offers many advantages compared to standard api drill pipe connections. Dpm dpmds dpmds26 ds38 ds40 ds46 ds50 ds55 ds65 equivalent api connection nc26 nc38 nc40 nc46 nc50 512 fh 658 fh 22,200 32,300 33,600 47,200 60,300 100,500 0 20,000 40,000 80,000 100,000 ts. Different methods and technology for reducing the number of well trips have been around for some years. Drill pipe is hollow, thickwalled piping that transmits drilling fluid and torque through the wellbore to the drill bit on a drilling rig. Other sizesconnections may be available upon request. Drillpipe connection when drilling torque exceeds the limits of the. Tubular spec sheets drill pipe rental company quail tools. The grant prideco double shoulder gpds connection is a highperformance rotaryshouldered tool joint connection available for drill pipe ranging in size from 2. Very quickly the industry determined that the best of class class 2 was not. Gpds is fully interchangeable with corresponding api fh or nc counterparts.
Data are given for the pipe body, tool joint, and drill pipe assembly. Versatile compatibility interchangeable with api industry standard threads and certain other double shoulder connections. Premium class drill pipe data is based on a minimum wall thickness equal to 80% of new drill pipe nominal wall thickness, reference api rp7g. Worldwide reputation for durability in production tubing and for workstring applications. Tpsds connections are fully interchangeable with api nc or fh connections. Drill pipe mechanical properties and specifications. It offers significantly improved torque performance over conventional api connections.
Renumber the current clause 10 nondestructive examination of bars and tubes and sub clauses as clause 11. In todays blog post, ill focus on the drill pipe body itself. Grant prideco offers all api tool joint connections as well as most nonapi. Most sizes of drill pipe tubes come in light weight, standard weight, and one or more heavier than standard weights. Delta belongs to the same torque segment as our xt connection and offers the same hydraulic performance. Dpmaster are world leaders in the design and manufacture of drill pipe, heavy weight drill pipe, drill collars and drill stem accessories. Worldwide reputation in production tubing and workstring.
Technical specifications 278 od drill pipe, s5, 278. Classes 2 to 4 represented graduated levels of pipe displaying signs of wear and tear. What do you do when you run into a casing connection that is impossible to break out. Weight of range i pipe with connections is used today to refer a class of drill pipe. World leader for premium connection solutions vam usa. Once you have driven it out of the dealers shop, its classified as used. Tool joint box threaded connection on tool joints that has internal threads.
We are using connection technology that was new 100 years ago, and we are using connection technology that is. It is manufactured to withstand severe internal and external pressure, distortion, bending, and vibration as it both rotates and lifts the bottom hole assembly bha. Technical specifications 278 od drill pipe, s5, 278 ht. We are using connection technology that was new 100 years ago, and we are using.
Sometimes these are experienced drillers who have been in the industry for years. Heavy weight drill pipe performance characteristics pipe size and weight. Proper makeup torque is determined by the connection type, size, od and id and may be found in torque tables. By maintaining higher torsional strengths than the. Interchangeability gpds connections are fully interchangeable with. Fearnley procter group specialise in the reduction of nonproductive time during the drilling and completion phases of oil and gas developments.
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