... overcomes the limitations of the soft-string model as it accounts for the mechanics of pre-drilled holes, the bow-spring centralizer, and loads imparted by the inner string. drillstring design upstream oil & gas information well planning node pdl tool joint drill pipe selection...

... and automating an old lathe machine. Real drillpipes with tool joints and casing sections made of different materials are used. The lathe spindle controls the mandrill rotational speed on which the DP is tightly mounted. The versatile casing section holder is fixed on a sliding system comprising a dynamometer...

... and real-life situations, during tripping and drilling operations. The system was able to predict tool joint positions in the well with a mean error consistently below 1%. The automation of the space out operation allowed the system to perform the operation in significantly shorter times and with higher...

... 105 KSI 105,000 The tool joints or connections are known to be the weakest member of the drill pipe in torsion in most cases. This is especially true for sour service drill pipe that suffers from a need to reduce the tool joint material SMYS in order to achieve SSC resistance. The higher...

... not previously encountered. A prospect in the US Gulf of Mexico required drilling to measured depths exceeding 31000 feet in water deepwater. Under such demanding depth, a non-typical drillstring was required to manage the tensile loading. Typical drill pipe connections on 6 5/8" S-135 tool joints are 8.5...

... pressure managed pressure drilling lesson learned tool joint rig seal performance drilling operation Introduction In conventional drilling, mud weight and rheology are carefully controlled to balance the fluid pressure in the wellbore between the pore pressure and the fracture pressure...

... mechanisms to ensure wellbore pressure is contained. Further, testing demonstrates that minimal human input is required to operate the system. well control Upstream Oil & Gas seal sleeve element tool joint rig drilling operation Seal Integrity closing pressure assembly wellbore pressure...

... Abstract A drill string in a wellbore always contacts a casing. However, in a curved section of casing the contact force between the drill string and the casing can be significant. Friction between the casing and a rotating drill string tool joint in contact with the casing generates a heat...

... string, which comes with tool joints of a similar size (this of 5 in. drill pipe), drilled the well and saved two days off the estimated drilling plan. Subsequently, more strings have been deployed, and more data shall be gathered in this paper to demonstrate the low repair rate. A new approach has been...

... cost prohibitive for service providers and operators alike. This paper will document viable alternatives. drilling operation RCD rotation annular pressure drilling operational characteristic test tool joint Upstream Oil & Gas field performance api 16rcd procedure requirement...

... prospects. casing and cementing landing string wall thickness operation Drilling Equipment strength slip segment pipe casing design resistant section string rating tool joint tensile capacity Upstream Oil & Gas safety factor contact area tool joint od drill pipe elevator module...

.... To combat the effects of H 2 S exposure, sour service drillpipe has been manufactured to meet IRP Volume 1 - Critical Sour Drilling specifications. IRP requires 75 ksi (SS75), 95 ksi (SS95), or 105 ksi (SS105) tubes with all three grades using 110 ksi SMYS tool joints for use in sour operations. However...

... in selecting appropriate wear factors and the underlying uncertainties that govern casing wear estimation analyses. casing design accuracy prediction casing and cementing friction factor tool joint Artificial Intelligence wear factor wear prediction Wear analysis multiple wear factor back...

... Metallurgical analysis of the cracked hardbanding was performed to identify the failure mechanism of the cracking and the factors that contributed to the cracking. To differentiate the cracked hardbandings on Case Study 1 and Case Study 2, the tool joints will be referred to as “C1” and “C2...

... the overall performance of the ADP including the handling, rig interfaces and new high torque steel tool joints for subsequent deployment in a big bore ERD well. This trial was the second phase of a comprehensive assessment of the potential for ADP to enhance extended reach drilling performance through...

... Hence a new drill pipe configuration has been developed including modified chemical composition and modified manufacturing process. Challenges Sulfide stress corrosion cracking resistance of steels used in tool joints and pipes has been widely investigated while very little information...

... are designed to be transparent to normal drilling operations, compared to standard API connections, some problems have been encountered. The paper addresses these running and handling issues and provides guidelines to mitigate these problems. Excessive tool joint and drillpipe body wear have also been...

... of the 2-million pound slip-based landing string that was required for this operation. The 6-5/8-inch, heavy wall, 150-ksi yield strength pipe incorporates an innovative thick-walled section in the slip contact area for resistance to slip-crushing loads and a uniquely designed dual-diameter tool joint...

... accuracy protector tortuosity model wear factor database standard deviation tool joint contact force category maximum dogleg severity Project Goal The goal of this project was to more accurately quantify casing wear risk by improving casing wear analysis accuracy. To do this, data from...

... Abstract Weld repair of tool joints ("rebuilding") has been practiced due to the manufacturing schedule and cost of new drill pipe. In rebuilding, a soft metal is welded to the tool joint surface to increase the outside diameter (OD) to meet Premium Class dimensional requirements. While...