One the world cant live without. Do you have a problem? We are glad to introduce this refreshed version of the site, with improved accessibility, updated content and new features. In summary, the Delta connection offers: Extreme torque (with as much as 20% more than XT) for drilling more extended-reach wells Enhanced hydraulics (~30-40% reduction in pressure losses compared to API) to promote faster drilling with more downhole tool power and improved hole cleaning Drill Pipe; Heavyweight Drill Pipe . In addition, monitoring of the first 108,000 connection inspections showed Delta requires 3.1 times fewer recuts than XTmeaning cheaper repair bills, fewer pipe movements for repair, and simply less pipe needed as contingency. With more relaxed inspection criteria and 50% more opportunity to reface the connection, Delta shows a very low recut rate and requires 30% less material to recut the connection. On a high torque connection once torque is being applied the pin connection will stretch slightly until the secondary torque shoulders/mechanical stops come into contact with each other and then recommended makeup torque is achieved. Do you need to talk with drilling experts and have a free consultion? Largest supplier of lacrosse equipment in Mid-Michigan. We hope to hear from you soon, and feel free to . 58 0 obj <>stream 0000113309 00000 n <> if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'drillingmanual_com-banner-1','ezslot_9',178,'0','0'])};__ez_fad_position('div-gpt-ad-drillingmanual_com-banner-1-0'); Simply, the D/P nominal weight is the weight per foot including the weight of an API regular connection. The short answer is competition. 3 0 obj 4 55 This gives torsional capacities 40-60 percent higher than the original NC. Interchangeability means that the connections will mate together, make up, and function; however, the performance properties will be limited to those of an API connection. j[wS}`O*moP]j~MJlHF}B~ a@`3EbpQ2=E'f= #>l3QC"~5: #),C`a`a`aEb47}$5>r=II}D/DC$!O }hA4Ok_?p 0 67 I completed a total of 6 inspections which resulted in the inspection of 72 6 1/2drill collars and miscellaneous subs and 268 4 (DS40) hevi-wate drillpipe. Configurations in the below table are torque optimized. The original high-performance rotary-shouldered connections. uGPDS connections are interchangeable with GPDS and API connections of similar size. We have the people, capabilities, and vision to serve the needs of a challenging and evolving industry. Can we screw type A together with type B, etc.? endstream endobj startxref Every day, the oil and gas industrys best minds put more than 150 years of experience to work to help our customers achieve lasting success. You may delete and block cookies from this site, but parts of the site may not function as a result. hR[k0+y^U[(j/LHldh#1wna$$4%.1'CaAwP)=0vfh"?"|v`}1bDc=E" &}NL ]/SM2{UEtuJj6f:&82&lNfptq2-z]UDLI_j;JYyXs/c[Qq585=Vt #Dk7)a43_ Also, the 6-5/8 FH was officially reinstated in 1993, no doubt because of its increasing popularity on 6-5/8 inch D/P. Stress reliefs in the tools minimize bending loads on the break point allowing high flexibility. Delta delivers improved overall performance compared to our XT connection but with the ease of use and lower cost of maintenance of an API connection. I determine the refaceability of a connection by referencing the pin or box bench mark and if a bench mark is not present (some machine shops dont re-apply bench marks when recutting) I measure the pin length or box counterbore length to assess refaceability. The GPDS and EIS connections greatly extend the life of the joint by tolerating more OD wear because of increased torsional capacity. As Voltaire so eloquently put it: "One day everything will be well, that is our hope. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'drillingmanual_com-leader-2','ezslot_16',642,'0','0'])};__ez_fad_position('div-gpt-ad-drillingmanual_com-leader-2-0');They are about equivalent in performance to Regulars, except that the shallow thread angle can cause high box hoop stress at high makeup torques. Connection/Tube Torsional Ratio Tool Joint Connection Type DS40 OD mm Material Yield Strength MPa 896 Tensile Yield Strength kdaN OD mm 133.4 Torsional Yield Strength ft-lbs ID mm 68.3 Recommended Makeup Torque ft-lbs Pin Shoulder Angle deg 18 Pin Tool Joint Length mm 356 Box Tool Joint Length mm 356 Drill Pipe Assembly Shoulder-Shoulder Length . For example, a 5 drill pipe can be described as 5, #19.5, E, XH, NC50, Premium. The GPDS and EIS connections increased torsional strength enables tool joint dimensional optimization more suitable for the pipe body torsional strength. The CDS connections life is extended by being able to wear to a smaller OD while maintaining a torsional capacity greater than 80% of the drill pipe tube. DIR-3040-US. One thing I do though is when it comes to galled seals with raised burrs that do not meet the requirements to be refaced, manufacturers recommend not filing the gall flat but to reface the seal instead (raising repair costs). endobj Quality production Process Monitoring, traceability, and inspection is our mindset when it comes to assuring long-lasting drill pipe is delivered to our customers. Sometimes these are experienced drillers who have been in the industry for years. The longer internal secondary shoul-der on the nose of pin provides additional torsional strength. I also have the capability to reface DS40 and CET43 connections using custom built refacing tools from Tubular inspection Products that are based on the Drilco tool. endobj They offer good clearance, but often at the price of alarmingly low tensile and torsional capacity. Wide variety of thread connections Safety Joints Safety Joints are designed for high bending flexibility. - Ensure 360 DEGREES of coverage of the threads and torque shoulders. Some examples are: Most premium connections have a double shoulder. 0000087289 00000 n There are 17 NC connections with pitch diameters ranging from 1.1/16 (NC-10) to 7.3/4 inches (NC-77). Now lets understand what is the main items that describe any drill pipe :if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'drillingmanual_com-medrectangle-4','ezslot_18',633,'0','0'])};__ez_fad_position('div-gpt-ad-drillingmanual_com-medrectangle-4-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'drillingmanual_com-medrectangle-4','ezslot_19',633,'0','1'])};__ez_fad_position('div-gpt-ad-drillingmanual_com-medrectangle-4-0_1');.medrectangle-4-multi-633{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:15px!important;margin-left:auto!important;margin-right:auto!important;margin-top:15px!important;max-width:100%!important;min-height:250px;min-width:250px;padding:0;text-align:center!important}. Technical Specifications. 2018 Command Tubular. Custom screen If there is space enough for a secondary shoulder in the API box, this can be a solution. $qi>}Px=fDYI px// hw7b|Z,/Eu{w?$/^%/N&W7G,)KU9:/#jWW4-~<>j1=~M}|cN1/LLZ!paL/.3^d! Frode Bjrheim is a specialist in drill pipe standards and lifting equipments with more than 30 years' experience in the oil & gas industry, both offshore and onshore. 0000001631 00000 n Connection: XT39; Compatible With: OD: 4 7/8" (4.875") ID: 2 11/16" (2.688") Adjusted Weight: 16.46 lb/ft; Average Length: 31.5 ft; Add To Quote Download Full Spec Sheet. When evaluating the condition of a seal I use API and manufacturers standards as to the acceptability of the seal and when to reface the seal if required. Non-API Drill Pipe Connection Thread Types H-90 Connections OWS expands its Premium Threading portfolio in Eastern Europe, Shifting the Focus to Advanced Casing/Liner Deployment Technologies, The DrillRdillo eliminates a trip and saves client $100k, The DrillRdillo casing scraper: The story so far [Infographic], API connections (American Petroleum Institute). Similarly, the API pin will make up to the double shouldered box. More information about cookies and your choice can be found in our Privacy Policy. On a high torque connection There is an additional torque shoulder/mechanical stop at the end of the pin and back of the box. Every time that seal is refaced takes life away from that connection. A standard rotary shoulder connection has two main components A seal/torque shoulder and threads. Pin end Box end Threads have two flanks (the sides of the thread). Command Tubulars CET and CDS connections offers technically advanced solutions for even the most demanding drilling conditions. The result is that drilling tools arent being inspected as often as they used to be allowing minor mechanical damage to get worse. rMD`i1yL+GW;pV{}M>T]^TO%Kec Z;fttQSJrVj v4[T]_>O(AzzZ+VDjSM2"u~6~a~ C_L0V]?6u]QUSeyHVU>}S?rmVX'|, \yMDmjh9S+};zYfDu2o2c9Enu|/b{nA/*ed3cFIDe4. In order for this to work the thread profiles need to match each other. 4 threads per inch (.250 lead) . Top drives are several times heavier than the old rotary table rigs swivel and kelly bar. stream by revisions ds box field inspection dimensions connection a box depth b c'bore c min wall d bevel dia. wW}Mdtx}~rOjJ|9us|0p endstream endobj 130 0 obj <>stream WEP Settings or WPA Settings: Enter the wireless connection's security key. For drill pipe connections, Delta is the difference. Access multiple NOV applications and services with one login. description date rev. SST boxes are identical to NC boxes of the same size. 5 Drill Pipe Range II - NC50 Connection. As new drill pipe is rotated in the hole it wears and, therefore, it must be reclassified according to its wear. I completed a total of 12 inspections which resulted in the inspection of 166 6 1/2drill collars and miscellaneous subs and 430 4 (DS40) hevi-wate drillpipe. Contact your Grant Prideco representative for further tool joint OD and ID configurations. Tests by the developer show improved fatigue performance for SSTs. The API has established guidelines for drill pipe classification classes in API RP7G. 4 0 obj Removed 2 cracked drilling tools from service. <]/Prev 117280>> bKun"`e7{8+;Z 8aeZH PjAN% s|Tr"D|ax:h w NXC?NGXP@{f*$L@wEyWg{\k~c]XIGU1j+\gBD[ lPthp8. 0000057605 00000 n Allows D/P with a minimum wall thickness of 65% with all wear on one side so long as the cross-sectional area is the same as premium class, that is to say, based on notmore than 20% uniform wall reduction. . Feel free to send your remarks or ask your questions to Mr Help. In this post I will deal with the drill string connections only. This additional strength provides the required torque for drilling to extended depths or in more demanding environments. ! But take the necessary precautions. Thread Type Compatibility In order for two components to fit properly, thread types must be compatible. It is for reference only and should not be construed as a recommendation. These premium connections have the same thread profile as the corresponding API connections. This is a patented design for tool joint pins. Team uniforms and spirit wear. Access the most up-to-date technical documents and brochures for our Grant Prideco products. Fully Interchangeable with API and some DS connections, Extended by being able to wear to a smaller OD while maintaining a torsional capacity greater than 80% of the drill pipe tube.