Casing connection types C-22-EG Casing Head C-22-EG casing spool Casing head For low to medium casing loads, the heads can be Casing Tubing Connection Selection - Free download as PDF File (. Each hanger has a specific applica-tion. XL Systems–National Oilwell Varco—XLC-S Seamless Casing Grade and Connection Type Chart. VAM Research & Development teams can customize Apr 5, 2024 · The bottom corner radius of the stab flank is improved to 0. 9. Structural features: Both ends have standard casing pipe connection threads, which usually match the casing pipe threads of the same specification, and the thread precision requirements are high to ensure the tightness and sealing of the connection. It has become the standard for OCTG premium threads over the years, with the largest field record in the industry. The wide range of connections naturally brings up the question about compatibility. Jan 1, 2021 · Various connection types are also available, from integral threads to those requiring couplings. API Casing Pipe And Tubing Weight Designation Dec 10, 2019 · Any subsequent casing strings run in the well to support and protect from corrosion. These longer lengths reduce the threaded connections needed for the casing string. This type of design prevents damage to sealing areas caused by drilling Threaded and Coupled Connections: Threaded and coupled connections are commonly used in Oil and Gas drilling operations. Threads are used as mechanical means to hold the neighboring joints together during axial tension or compression. Casing tally will be entered into OpenWells daily reporting software by the Drilling Supervisor; Total depth will be adjusted for the casing tally (allow 10 m rat hole). Premium connection is a higher class connection type for used to connect casing or tubing pipelines. The Conductor Casing or stove pipe; The Surface Casing; The Intermediate Casing; The Production casing; The Production Liner System – Liner set through the productive interval and landed inside the casing on a hanger or with tieback to the surface; The main function of Other clamp type fittings used at the top of a well casing may be used to seal the well top around piping that exits at the top rather than the side of the well casing. The presentation discusses casing design factors and casing design loads. 2(b)) with a specially designed connector. com . Nov 22, 2023 · STC (Short Round Thread) Type: STC thread type is characterized by a round thread with a runout-free design, comprising eight dome threads per inch. Each thread type has its own distinct Oil States designs, manufactures and tests conductor and casing connectors to suit all types of well architecture and operations – from ultra-deepwater to land and geothermal wells, as well as exploration, appraisal and tieback to production. jfetools. [Well Completions] A type of tubing connection in which the internal or external surfaces are the same diameter throughout the tubing joint. In addition, there are mandrel-type casing hangers available for both bowl types. Sep 2, 2021 · The basic situation of API standard tubing and casing thread connection: The API standard threaded connection of tubing and casing in petroleum special pipes consists of two parts: pipe or male end and coupling or female end. It is suitable, but not limited, for use as a production tubing or intermediate casing in applications as: Inspect any types of tubing or casing connectors including API round thread, long thread, short thread, line pipe, and buttress. Jun 24, 2024 · Primarily, there are two broad categories of oilfield pipe threads: tubing and casing threads, and line pipe threads. The three most common types of casing threads are Short Threaded Coupling (STC), Long Threaded Coupling (LTC), and Buttress Threaded Coupling (BTC). In addition, better roundness is seen with seamless casing Jan 1, 1995 · The following tolerances, from API Spec. Pup joints are short tubular sections used to finely adjust the length of casing and tubing strings during oil and gas drilling operations. P. The field-proven design incorporates the use of slip segments loaded to a specified torque, providing a quick and reliable connection between the casing head and the casing. If acceptable connection make-up is not achieved, the connection should be broken out, cleaned, and inspected. Seamless casing is produced in a pipe mill using a billet, a solid cylindrical piece of steel. They use the original tubular geometry and employ a larger diameter coupling to ensure connection strength. The Pitless Connector – is female threaded on top and is slipped onto top of well casing and held in place by a neoprene seal ring which clamps against the casing. Casing and tubing ends type are different where for casing usually BTC and tubing with EUE or NU. Dec 10, 2019 · Any subsequent casing strings run in the well to support and protect from corrosion. It discusses functional and operational requirements including strength, sealing properties, and ease of use in the field. It discusses the different types of casing including conductor casing, surface casing, intermediate casing, and production casing. For welding to the top of the casing. Threaded connections are the most common pipe fittings used in oil and gas transportation systems. M&M Casing Scrapers. Premium connections that replace the connections VAM TOP, NEW VAM, HYDRIL CS, TPCQ (TPCO), HSM-1/HSM-2 (Hengyang Valin Connections), and etc. Common length in R3 which nominal at 40 ft / 12 meters. Compatibility. For each of these types, the union is made by screwing a threaded pipe end into a similarly threaded coupling (Fig. The most common API thread types include: 1. Each hanger has specific applications. However, once the elastic limit of the material is reached, the additional torque cannot help and may damage the Casing Points Pore Pressures Desired Casing Sizes Fracture Pressures Completion Type . Aug 1, 2019 · In contrast, Awe et al. Added torque sometimes stops leaks in connections with round thread, but doesn't close the leak path. This then internally slots into the new joint of the casing. 1/16 Taper-type Secondary load shoulder Box connector Pin connector Primary load shoulder O-ring seal PUMP SUB TYPE PS-S WITH SQUARE SIDE ENTRY & OCTG CONNECTION • PUMP SUB TYPE PS-Y WITH « Y » SIDE ENTRY • PUMP SUB TYPE PS-E WITH FLANGED SIDE ENTRY AND LIFTING NECK FOR ELEVATOR & OCTG CONNECTION PUP-JOINT & PUP-JOINT CROSSOVER We supply OCTG pup-joints manufactured from casing or tubing and threaded to API or This makes it important for producers to understand the compatibility and suitability of different types of threads and connections. 5CT (1992), apply to the outside diameter (OD) of the casing immediately behind the upset for a distance of approximately 5 inches: Casing manufacturers generally try to prevent the pipe from being undersized to ensure adequate thread run-out when machining a connection. Standards for Tubulars: API Bull 5C2, Performance Properties of Casing, Tubing, and Drill Pipe. Protect against mechanical forces such as tension and leakage that tend to destroy tubing & casing; Inspect both standard and non-standard connections – all using the same gages. Confidence thanks to ISO 13679-2019 CAL-IV/API 5C5-2017 CAL-IV compliance within the full pipe body envelope extends the opportunities for your well designs. Limit the casing/liner lowering speed to 45 sec/joint or to the optimum speed from surge/swab calculations. This connection product is available in outside diameter sizes from 4-1/2 to 8-5/8-inches. Can we screw type A together with type B, etc. Internal flush joints are most common, offering no restriction to fluid flow. We deliver top-tier solutions for conductor strings, surface casing, liners, and caissons, tailored for the oil & gas industry and beyond. Jan 22, 2023 · Tubing and casing couplings are designed to connect different lengths of pipes together while providing a secure fitting that is resistant to changes in pressure or temperature. Baker Hughes – RTS-6, RTS-8 tubing, NJO Casing Jun 4, 2020 · Normally tubing coupling OD maximum is 4 1/2”, as the tubing pipe is applied for the drilling activities (Inside the tubing is the sucker rod to drill/pump the oil), couplings type is more various and rigorous than casing, mostly used is thicken type upset coupling (Internal upset and external upset), for short is EUE coupling, it is the most 2. Jan 27, 2025 · The cost of casing is a major part of the overall well cost, so selection of casing size, grade, connectors, and setting depth is a primary engineering and economic consideration. Does Casing Meet Design Factors? Determine Loads STOP. Connections if more than the Maximum MU Torque value is required for shoulder engagement and/or final makeup, Dec 16, 2024 · Ordinary connection type casing pup joints. SEAL-LOCK® XD A proprietary hooked-style thread form that is highly suitable for extreme critical well applications where bending, pressures and compression forces are high. This string of casing, which is used on oil and gas wells, serves several purposes: This discussion is restricted to short, long, and buttress threaded casing connections and NUE and EUE tubing connections because of predominant use of those connection types. Oct 23, 2014 · This document provides information about casing pipes used in oil and gas wells. t Taking Connection. Thread Type Casing–This is a casing head housing design that features a 45-degree landing shoulder. Casing strings. pdf), Text File (. When it comes to integrating wellbore construction services with subsea wellhead equipment, premium connectors and casing (PCC) are where it all begins. The American Petroleum Institute (API) defines several standardized connection types including API threaded, EUE, NUE, BTC, and STC. Its staggered blades provide 360-degree coverage to insure 100% removal of rust, cement sheath, perforation burrs, scale buildup, or other debris adhering to the ID of the casing. It is then able to connect to, pump, and rotate the casing properly. txt) or read online for free. Types and functions of casing strings Intermediate casing Purpose Isolate unstable hole sections, lost- circulation zones, low-pressure zones, abnormal zones Provide integrity to withstand the high mud weights necessary to reach tnle depth (TD) or next casing Production casing Purpose Connection between reservoir and well head Jun 1, 1993 · Leakage resistance of casing connections can be evaluated by extremely expensive testing procedures. The casing head uses a flanged or clamped connection to match what the BOP stack or wellhead needs. L80 tubing connections with regulare and special clearance. Premium connections are described as follows: P – plain end; S – short round thread; B – buttress; L – long round thread The USS-TALON HTQ® connection is rated 100% in tension and compression efficiency relative to full pipe body and has completed full scale test programs aligned with API TR 5SF validating fatigue life, frac cycling, maximum torque, and pressure performance. 1). API Standards 5B and 5CT contain the geometric, performance, and gauging specifics for the available API connections and address tubing and casing sizes 1. Intermediate Casing Type In Drilling. predominant use of those connection types. However, for drilling with casing, some critical issues that become important for drilling directional and deviated wells include the following. By Thom Hanna, PG, and Mike Mehmert We covered basic nomenclature in part one of this two-part series in the September 2023 issue. Pitless Connector To provide a suitable connection for the wellhead connection Types of casing 1. the scaling of results to different sizes or grades are not accepted. VAM® FJL™ (Flush Joint Liner) is a 100% inside and outside flush integral connection providing maximum clearance with optimum strength for liners, moderate depth casing, and tight-hole tubing strings. API standard – API non-upset tubing, external upset tubing, Butress Thread Casing, Extreme Line Thread Casing, Long round thread casing, short round thread casing. The casing spool in a conventional wellhead system is the component that allows for an additional string of casing to be set in the well. 4 Groups of Grade • Group 1: All casing and tubing in Grades H, J TenarisHydril. Proprietary high-torque connections might be selected when rotation is desired during the cement job or the need for reaming is expected to be able to get the casing to total depth (TD). This wear results from making and breaking the drill pipe connection while drilling. 9 cm based on the parametric studies of the buttress type API-based premium casing connection system. 3/4 inches were also introduced, each with a unique GPPD. The primary advantage of the seamless casing for oil well is the absence of a weld seam, which is considered a weak spot that can pose risks of failure and corrosion. So, now that we are all talking about the same thing, let’s look at the standards and strengths of various common casing materials. Types of Casing Head. The type of coupling used will depend on the application, as some types of couplings are better suited for specific jobs than others. Cleat Wiring Methods of Electrical Wiring Systems w. 1 Casing (and tubing Oct 12, 2022 · VAM TOP is a threaded and coupled (T&C) connection for tubing and casing string types. Each year VAM ® designs new connections, extends product lines and qualifies new sizes to the most stringent specifications to meet our customer needs. May 1, 2007 · Premium connection designs are typically evaluated and qualified to broadly adopted industry standards, such as ISO 13679 (2019) and API RP 5C5 (2017) procedures for testing casing and tubing Mar 24, 2025 · The primary application of the Kelly saver subs is to protect the lower kelly connection from wear. BTC (Buttress Thread) Type: Jul 17, 2024 · API REG: This thread type is commonly used in production tubing and casing strings due to its robust design and compatibility with API-spec equipment. 25" guidelines for tripping, making connections and back reaming Extend the Longevity of Casing… Optimize the Performance of Connections… Obtain Accurate, Repeatable Measurements Every Time… Borehole mining is used for extracting mineral resources such as iron ore, quartz sand, gravel and coal due to its mobility, ability to work in hazardous and dangerous conditions, low environmental impact and most importantly low capital cost. There are two major types of casing head design. This is applicable for all types of wells: exploration, appraisal and development wells. SEAL-LOCK® Semi Flush is an integral casing connection that utilized the latest in Finite Element Analysis and physical testing technology during its development. It is challenging to distinguish EU from NU solely by their external appearance since both have triangular threads. Below, we have gathered some of the conductor casing pipe specs tables from oil and gas NOV & Varcogray. Jul 12, 2021 · As conductor casing pipe is considered one of the Types Of Casing, its specifications are the same as casing specifications. Casing and Capping wiring Batten Wiring (CTS or TRS) Lead Sheathed Wiring Conduit Wiring Surface Conduit Wiring Concealed Conduit wiring Types of Conduit Metallic Conduit: Non These API connections are widely used in conventional oil and gas wells due to their reliability and cost-effectiveness. Due to external vibrations, cyclic loads, and pollution, the fitting parts may start getting Steel Casing pipe standards usually referred to API 5CT, Common Grades in J55/K55, N80, L80, C90, T95, P110 etc. 15 Page 4 of 9 . What standard API Thread Connections for Choice. This approach is suitable only in non-freezing climates or where the well head is protected from freezing by its location such as in a well pit or inside of a heated structure. A description of the various types of casing connections is given. Seamless casing and connection is considered the most commonly utilized oil-field casing today. Its threadless interface eliminates the need to match casing grade and connections, giving operators an “off the shelf” float system solution. Tie-back liner" Tie-back liner is a section of casing extending upwards from the top of the existing liner to the surface. Each type of casing serves a specific purpose like maintaining hole integrity, isolating pressure zones, and protecting groundwater Nov 1, 2019 · Different casing premium connections have varying thread teeth types and have some influence on the joint strength of thread, so for the convenience of establishing the joint strength model, it is assumed that the casing premium connection adopts the API buttress thread. API thread types are short thread (STC), long thread (LTC), buttress and extreme line. Types of connections for Tubing: BTC, NUE, EUE, Premium. For all casing sizes, the threads are not intended to be leak resistant when made up. Select Casing . All MTS values can be found on the specific connection data sheets available at www. 1/16 to 7. Each type of casing serves a specific purpose like maintaining hole integrity, isolating pressure zones, and protecting groundwater WELCOME TO TENARIS Leading in safety, quality and innovation. API 5CT applies to the following connections which comply with API SPEC 5B: • SC: Short round thread casing • LC: Long round thread casing • BC: Buttress thread casing • NU: Non-upset tubing • EU: External upset tubing • IJ: Integral tubing connections. Various full scale fatigue testing has been performed on the connection product line offered by JFE Steel Corporation. Premium connections are often preferred for thermal well applications based on their . For hanger retention, the heads can be configured with external thread (ET) lock screws. Whether you're involved in carbon capture, utilization, and storage (CCUS), geothermal energy, storage wells, or other sectors, we've got you covered. Make up the connections in accordance with API Spec 5CT. THREADED & COUPLED CONNECTIONS PREMIUM Premium threaded and coupled connections use metal-to-metal seals to ensure both liquid and gas sealability. studded side outlets or line pipe outlets. Tubing and casing threads are further divided into two types: round threads and buttress threads. Premium connections. API Coupling refers to the steel couplings that used in connecting casing pipe and tubing. Oil States’ Merlin™ connection, in service since the mid 1980s, has been field proven in a variety of applications including: casing, conductor, TLP tethers, drilling and completion riser, caissons and FPSO turrets. Connection Type. TenarisHydril Wedge™ robust integral true-flush connection hosting internal metal-to-metal seal. The reason to use premium connection is due to it’s high seal performances, high strength, and longer durability. The profile is a V or wedge-shape but slightly rounded at the crest and valleys of the threads. 1 Casing (and tubing guarantee in connection with this publication and hereby expressly disclaims any liability or responsibility for loss or damage resulting from its use or for the violation of any authorities having jurisdiction with which this publication may conflict. In addition, they will protect the top casing joint against excessive wear if fitted with a rubber protector and provide an area to tong on when working with the . API RP 5A5: Field inspection of new casing, tubing, and There are three general classes or types of connections used in oilfield casing tubulars: American Petroleum Institute (API) round, API buttress (and oversized buttress) and proprietary premium connections (API 5B 2008; API 5CT 2011). Casing and tubing ends type are different where for casing usually BTC and tubing with EUE or NU, threads comply with API 5B. Stove pipe (Marine Conductor or foundation pile for offshore rigs) Run to prevent wash out of unconsolidated surface formation Run to provide a circulation system for drilling fluids and to ensure the stability of the ground under the rig Type of connections for Casing: BTC (thread coupling buttress), LTC (long round thread coupling), premium connection. T&C connections use separate couplings that are screwed onto the ends of the casing pipes and Connection type, ends and Couplings. com D d t D c Hunting TKC 4040 RTC is spe- cially designed as a low-stress, multi-cycle fracture string. I. Reselect Casing or xlo. ISO 13678: Petroleum and natural gas industries -Evaluation and testing of thread compounds for use . There are six basic types of casing strings: Conductor Casing; Surface Casing; Intermediate Casing; Production Casing; Liner; Liner tieback casing casing sizes, weights, grades, and types of threaded connections for a given situation presents an engineering and economic chal-lenge of considerable importance. Baker Hughes brings deep expertise in metallurgy and welding technologies to provide high-quality casing and conductor joints for your oil and gas well applications. Adjust for Biaxial Loads Determine Actual Design Factors . It should be noted that no amount of torque applied to the connection can close the leak paths in round or buttress threads. SCHEMATIC . Production Mar 18, 2013 · There are several types of connections that you can find from this book. 2015 Casing Reference Tables C–112JANUARY 2015/WorldOil. The evolution of the oil and gas industry this past century led to a variety of manufacturing standards and thread types for different pieces of equipment. Draw Load Lines . Threaded and coupled connections are designed to perform at 100% of the tubular body strength. These connection types can all be found in the tool shop. 8. N80 casing pipe connection type usually refer to BTC, which is buttress thread marked with BC symbol; Other than this type there are short round and long round thread types, corresponding marked as SC or LC symbol. 050″ through 20″. Standards were Sep 9, 2023 · The answer lies in a small but essential product known as thread compound. Jan 1, 2021 · Casing connection is a thread-type connection and is an effective way of connecting casing joints and run into oil and gas well as a casing string. (2015) and Jellison and Brock (1998) identified connection failure, local buckling and shear failure as the main types of failures on casing strings. Pup Joint Connection Types. casing and tubing, latest edition. 10. Wedge 513 ®. There are three general classes or types of connections used in oilfield casing tubulars: American Petroleum Institute (API) round, API buttress (and oversized buttress) and proprietary premium connections (API 5B 2008; API 5CT 2011). 1. Atlas Bradford – FL-4S, IJ-4S, TC-4S both tubing and casing. Tubing and casing threads are used in the drilling and production of oil and gas wells. Introduction of casing tubing connections - Designing and manufacturing premium connection - Standard connections vs premium connections. Those with external threads are called pipes or male ends, and those with internal threads are called couplings or VAM® Connection Selection Guide. 3. Common use connection BTC, buttress thread marked with BC LC: Long round thread SC: Short round thread Premium connections like HYD, and other gas tight thread Customized connection threads as per client requirement WELCOME TO TENARIS Leading in safety, quality and innovation. When it comes to internal yield, some types of Wedge connections meet the pipe body yield performance while others are limited to low-moderate pressure services. There are five main types of casings. API RP 5A5: Field inspection of new casing, tubing, and 1. Casing materials standards and strengths. Octal also specialized in supplying premium connections in different types, air proof casing The TPS TECHNISEAL tubing and casing connection is a ver- satile, high performance, non-upset Premium gastight T&C connection. 2010 SIMULIA Customer Conference 3 • The selection of a suitable thread compound is an integral part of casing connection design and should be properly matched with the type of connection selected. The lower connection can be configured with a variety of profiles including slip-on-weld, threaded or Slip Loc. CASING DESIGN . Characteristics : At present, there is no recognised way of generalising test results for a particular connection to the same type of connection but having a different size, weight, grade/alloy composition or surface treatment. Connection type Premium stands for a connection with a metal-to-metal seal and gas type sealability Semi-Premium stands for a connection without a metal-to-metal seal and water type sealability Integral stands for a connection whose box end is directly threaded on the pipe T&C stands for Threaded and Coupled, a connection which uses a Dec 20, 2007 · Casing and tubing connections come in two main types: API connections (8 round and buttress) which rely on dope to make a seal, and premium connections from a whole host of casing manufacturers that don't and instead have a metal to metal seal, either via a step in the middle of the thread or at the pin. Run the casing/liner smoothly, avoiding high acceleration and deceleration which could cause unnecessary surge/swab pressures. For the purposes of this topic, we will deal only with the type used on tubing and casing. The structural collapse performance of these connections is rated at 100% of the pipe body performance. API round connections, including short-threaded and coupled (STC) and long-threaded Sep 30, 2015 · The short answer is competition. Jan 16, 2018 · In this article, you will learn how to consider casing connections in the casing design of the planned oil & gas wells ( API & Premium Types) Threaded casing connections can be divided in two groups, namely the integral connections and the threaded and coupled connections. Capable of withstanding 60% to 80% of the pipe strength, STC threads are well-suited for shorter length casing applications without high axial loads or bending requirements. Jan 15, 2018 · The most common length range for casing pipes is R-3 lengths. And premium connections are also required in large quantities in an oil and gas piping project. EUE: External upset, tubing ends have an exeternal upset with a larger diameter and thickness than tubing body VAM TOP® is the most widely used Threaded and Coupled (T&C) premium connection, in tubing and casing sizes. Therefore, each connection will have to be tested for approval. Follow the connection’s appropriate make-up torque values and make-up RPM. Sep 25, 2024 · There are three common types of tubing connections: EU (External Upset), NU (Non-Upset), and NewVam. 7atigue Life Performance F Connection fatigue information is typically required for drilling with casing or riser applications. Casing Hangers Three slip-type casing hanger designs are available for the S and IC-2 Casing Spools. It provides gas-tight sealing under the most severe conditions: VAM TOP thread minimizes the risks that result from combined loads induced by: gas pressure, temperature, bending, and compression. Torque requirements for these connections are low. The type of thread used to connect the ERW steel casing’s joints is shown on the connection type. The connection can be made up again if it is in good condition. Confidence thanks to ISO 13679 CAL-IV compliance within the full pipe body envelope extends the opportunities for your well designs. Buttress Connections Nov 30, 2020 · One critical aspect of casing pipe design is the threading, which plays a key role in joining the pipes together securely and ensuring a leak-free connection. According to the computational Apr 12, 2024 · This document provides information about casing pipes used in oil and gas wells. Casing is strong steel pipe used in an oil or gas well to ensure a pressure-tight connection from the surface to the oil or gas reservoir. Comes in a wide size range, suitable to a variety of applications requiring high clearance, high torque and compression strength, and sealability. Apr 28, 2020 · The most common type of casing connection in use is the API 8-rd connection, where 8-rd means 8-round or eight threads per inch and a slightly rounded profile. Depending on the casing program for the well, there can be one or more casing spools and they perform the following functions: • Allows for suspending the next casing string in the well Dec 11, 2016 · The casing drive system used for CwD is specifically built based on the casing spear principle integrated with a cup-type packer seal. Also known by OCTG coupling, it is usually manufactured in seamless type, material grade same with the pipe body (API 5CT K55/J55, N80, L80, P110 etc), same PSL or providing higher grades than requested. This pipe is connected to the top of the liner (Fig. C22 CASING HEAD WITH BASE PLATE Connections. API 5A3: Recommended practice on thread compounds . Thread compounds are used in casing, tubing, line-pipe, or drill string on every threaded connection. JVDD/JVDD2 JVDD2 with Anti-rotation Key Option External make-up indication Elevator shoulder Hook thread form 2 T. Casing pipe ends connection types are usually in BTC and LTC, STC. r. A number of proprietary premium casing threads are also available. Casing connection can range from simple, inexpensive API connection, to more advanced, more expensive proprietary connection from proprietary connection venders. Joint Box or Tee or Jointing System. We are the leading manufacturer of pipes and related services for the world's energy industry and certain other industrial applications. May 1, 2006 · Standard OCTG casing connections are designed to withstand static loads of tension and compression, internal and external pressure, and bending. Figure 1. with casing, tubing, line pipe and drill stem elements. For all casing sizes, the threads are not intended to be leak-resistant when made up. guarantee in connection with this publication and hereby expressly disclaims any liability or responsibility for loss or damage resulting from its use or for the violation of any authorities having jurisdiction with which this publication may conflict. Apply Design Factors . Pipe performance is discussed as well as material selection. Ensure pipe can spin freely during make-up to avoid anomalies in connection make-up. n. Dec 24, 2024 · Casing connections, including API standards, premium designs, and corrosion-resistant options, provide strength, reliability, and performance for oil and gas operations, ensuring well integrity under various conditions. VAM® 21TM is the latest generation of Threaded & Coupled (T&C) premium connection introducing an innovative and revolutionary design. Manufacturers compete for the best connection, and that will probably continue for some time. 7 %âãÏÓ 68 0 obj > endobj xref 68 44 0000000016 00000 n 0000001557 00000 n 0000001751 00000 n 0000002271 00000 n 0000002296 00000 n 0000002429 00000 n 0000002588 00000 n 0000002894 00000 n 0000004969 00000 n 0000005534 00000 n 0000010371 00000 n 0000010694 00000 n 0000013070 00000 n 0000013182 00000 n 0000013293 00000 n 0000013406 This document describes tubing and casing connections. The main types of connections for casing pipes are STC (short threads), LTC (long threads), BTC (buttress threads), and premium gas-tight connections. An extremely important feature of Wedge connections is their superior torque Dec 12, 2023 · Two types of drill pipe connection threads are used in 1968: API and Non-API. ? Yes, some connections go together with other types under given Oct 18, 2023 · Part 2. This document presents an updated guideline for selecting threaded connections for casing and tubing. for casing, tubing and line pipe. Running Procedure for Casing with GB Drilling with Casing Connections February 13, 2024 Rev. API Buttress (BTC) The API Buttress connection is a widely used thread type for casing pipes. Loop-in or Looping System. casing or drilling liner becomes part of the completion string. See also: Casing Running and Cementing Preparation, Casing Running – installation patterns, Casing Running Procedures. Programmed make up torque on Antares ER connections is 13,000 ft-lbs, with a maximum of 13,980 ft-lbs allowable. Connection strength and tightness are two main coupling technical indicators. NC connections from 1. For almost 60 years, the M&M Oil Tools casing scraper has proven to be a preferred solution. API EUE: Known for its thicker wall and API 5CT, casing, tubing, SC, LC, BC, XC, NU, EU, IJ, BTC, LTC, STC, EUE, Buttress Connection, Long Thread Coupling, Short Thread Coupling, External-Upset Connection The seal is the part of the connection that provides the pressure seal between the casing and the formation. Key factors in selecting a connection type include stress levels We provide seamless and welded OCTG, TenarisHydril Wedge and Blue® premium connections, proprietary steel grades as well as weld-on connectors and drill pipe. com 2014 Tubing Reference Tables D d t Dc Dsc L m Hunting TKC 4040 HO is a non-upset threaded-and-coupled con-nection which combines the 4040 API 5CT, casing, tubing, SC, LC, BC, XC, NU, EU, IJ, BTC, LTC, STC, EUE, Buttress Connection, Long Thread Coupling, Short Thread Coupling, External-Upset Connection Casing Points Pore Pressures Desired Casing Sizes Fracture Pressures Completion Type . The ERW steel casing’s strength and material composition are reflected by the grade of the casing. The Swagged Nipple – Is male threaded both ends and screws into cou-pling on top of casing to increase casing size. P110 casing pipe connection types. Oct 16, 2017 · Connection Type: The connection is the type of thread used to connect the joints of casing. Even though both API and ISO have issued recommended practice for connection evaluation procedure (API RP 5C5 and ISO/PAS 12835) left much to be desired for hydraulically A description here. %PDF-1. other. It standardizes the number of approved premium connections and organizes them into a 5x4 matrix based on sealing and structural Premium coupling and threads type. The SlipLock slip-type casing connection system can be used as an alternative to the conventional weld-on or threaded casing connection. Casing size The size of the casing or also called the outer diameter of the casing joint varies from 4. 11. Oct 7, 2022 · The API connections include 8rd (pronounced “eight round”-implying eight threads per inch), 10rd, Buttress (BTC), and Extreme-Line (XL) designs. What is Electrical Wiring?. a. This enables operators to reduce lead times and recognize significant cost reductions by eliminating the need to pre-order and store additional inventory. The floating collar and shoes are available in different API certificated thread connections, including Short Round Thread (STC), Long Round Thread (LTC) and Buttress Thread (BTC). Different Types of Electrical Wiring Systems. This type of Casing connection… Thread When selecting a casing connection the actual load on the connection should be compared to the connection's capacity. These couplings are characterized by their compact design and round thread profile, offering a balance between performance and efficiency in well construction. For casing pipe, most popular threading type is LTC (Long thread connector), STC (Round threading connector) and BTC (Buttress threading). Connection type, ends and Couplings. It also describes different connection types including integral connections, threaded and coupled connections, thread forms, and sealing mechanisms. Since we usually run casing in single joints (instead of doubles or triples), the longer R-3 lengths are easier to handle. l . Conductor Casing Pipe Specification In Oil and Gas. 3 Casing Connections There are three general types of casing connections used in geothermal applications: premium, semi-premium, and American Petroleum Institute (API) buttress designs. An integral casing connection that utilized the latest in Finite Element Analysis and physical testing technology during its development. CONNECTION Axis HT Semi-Premium Axis Pipe and Tube´s semi-premium threaded and coupled connection, provides increased torque, as well as increased torsion and compression resistance, allowing operators the ability to maneuver their casing string through the most dif cult areas in the wellbore. VAM®21 is the latest generation of T&C premium connection introducing an innovative and revolutionary design. There are two main types of casing connections: threaded and coupled (T&C) and integral (or flush). The design has multiple metal-to-metal seals; a close tolerance hooked thread form and an integrated torque shoulder that produces extremely high load capacities. C-22 Casing Head with a threaded bottom connection available in several thread types: 8 round long casing thread (most common) Buttress thread Custom thread – customer specified Thread connection in the head, female or male, made with a pup joint. Different Standards for Oilfield Pipe Thread Types This article presents the definition of the various casing types: conductor, surface casing, intermediate casing, Connection types ; Latest. Our reusable multi-application connections are designed to withstand harsh Dec 16, 2015 · Casing is classified in terms of outer diameter or size, weight, grade and the type of the connection. In summary, OCTG casing pipes are essential components in the oil and gas industry, providing structural support, fluid containment, and well integrity in the exploration, drilling, and Reusable All JVDD and JVDD2 connectors are reusable. Each group can further be divided into several types, depending on the sealing mechanism and the existence of a torque shoulder. BTC (Buttress Thread) Type: T-112NOVEMBER 2014/WorldOil. For example, the API standard casing pup joint For casing pipe, the most popular threading type is LTC (Long thread coupling), STC (Short thread coupling) and BTC (Buttress thread coupling). VAM ® has been the leading brand of premium connections in the oil and gas industry for over 50 years. Round threads, also known as API round Types of Casings and Functions. Although testing is required for connection validation, significant amount of resources can be Jul 9, 2024 · SC couplings are another important type of casing connector used in the oil and gas industry. casing string for well production and also as a conduit for a fracture stimulation. In the design of those threading types, you can find them in API 5CT or API 5B. May 17, 2021 · Seamless Casing and Connection over Welded Type Seamless casing and connection presents advantages over the welded type. 5'' to 36''. Nov 13, 2023. There are different types of seals, such as metal-to-metal, elastomeric, or composite Weatherford Overdrive casing running and pick up/lay down machine - Checklist 16" Potential Problems - Best Practices 12. xtq mtau jeu oqjui hcsmp zlznix xejhh oktndujfs lzrvzr yxhhc