... establish a deflection model to examine the interaction between the casing string and the borehole wall in the bending section. The friction and hookload calculation models of each well section and the strength check models are also established. The calculation results show that, according...

... material. OPC has several drawbacks, including brittle behavior, shrinkage upon setting, poor bond strength to formation and casing, susceptibility to an acid gas attack, temperature-induced strength retrogression, and low tolerance toward drilling fluid contamination. These factors could lead to a poor...

... model and the measured as-manufactured residual stress, the 3D FEA model can predict the casing collapse strength with good accuracy. Also, the Klever-Tamano ultimate limit-state (KT ULS) collapse equation per API TR 5C3 (2018) together with a moving-average (MA) scheme can calculate the joint’s...

... operation. Zhou (2012) and Liu et al. (2010 , 2011) optimized and analyzed the conductor size, installation depth, and strength and stability of the conductor in the process of jetting installation through regression analysis and pointed out that surface conductor installation by jetting technology has...

..., deteriorating the interfacial bonding of cement to these surfaces. We present a novel cement additive using graphite nanoplatelets (GNPs) to minimize the impact of mud residuals on the bonding strengths of cement. To benefit from the individual superior mechanical properties of GNPs, we develop surface...

... equation mse torque spe drilling energy rot exhibition strength The various versions of MSE that have evolved over the last two decades have generally fallen into two categories. They are either intended to reflect the energy efficiency of the entire string or of the bit alone. We recommend...

... significantly. In this paper, we use the finite element method (FEM) to analyze the stress distribution in degraded geometries and to assess reduction in collapse strength. A model for the collapse strength of the casing with a crescent-shaped wear groove is developed and its performance evaluated in relation...

... trajectory design load case correspond well planning upstream oil & gas strength pipe effective force design limit drilling operation plasticity information ellipse completion installation and operations lubinski december 2021 formulation horizontal ellipse collapse pressure axial...

... with those of BiSn alloy‐shale and cement‐shale cores. To avoid phase change-induced shale damage at elevated temperature while setting BiAg plugs, water was first extracted with supercritical carbon dioxide (CO 2 ). For shear and tensile tests with pinhole‐anchored BiAg, the ultimate strength and modulus...

...Gang Tao; Cam Matthews; Adrian Adams Summary Understanding of material properties for tubular design under high-pressure/high-temperature (HP/HT) conditions goes well beyond the basics of the classic methods routinely used in the industry. Coupon test results of high-strength tubulars commonly used...

... a deterministic load at its extreme survival magnitude is compared with stochastic strength (from data on strength parameters) is a rational approach to survival load design. Regardless of how low the probability of occurrence of the load is at its survival magnitude, well integrity is demonstrated by assuming...

... criteria were met. 23 5 2019 11 3 2020 9 3 2020 22 5 2020 17 12 2020 Copyright © 2020 Society of Petroleum Engineers hydraulic fracturing liner displacement difference interface strength experiment numerical model Completion Installation and Operations cement...

... the cement system more resistant to cracking. The cement expansion, fluid loss, gel strength, compressive strength, ductility, and tensile strength of the samples containing these fibers are examined using destructive and nondestructive methods, as reported here. The proposed class of expandable additives...

...Kenneth J. Kotow; David M. Pritchard Summary A significant improvement in deepwater well integrity can be accomplished by deepening the structural casing to have a dual functionality. This exploits the rapid growth of formation strength in the shallow first 1,000–2,000 ft below the seafloor...

... investigated the effect of modified GNPs on the unconfined compressive strength (UCS), shear bond strength, thickening time, rheological characteristics, and the free fluid content. We measured zero free fluid at room temperature for different concentrations of GNPs, demonstrating uniform dispersion...

... cement property Upstream Oil & Gas Exhibition cement chemistry jafariesfad casing and cementing particle cement formulation strength zonal isolation application Cement System nanoparticle shrinkage cement sheath mechanical property nanomaterial SPE Drilling june 2020 cement slurry...

...Udaya B. Sathuvalli; P. V. Suryanarayana; Shaikh Rahman; Sharat Chandrasekhar Summary Tubulars made with corrosion–resistant alloys (CRAs) exhibit a moderate degree of transverse anisotropy. This results in lower yield strength in the plane perpendicular to the rolling axis of the tubular...

... seal. Brazing was selected because of the combination of ductility and high bond strength and the relatively fast process to create the bond. The brazing process or the temperature/torque/time (TTT) process is performed using regular casing connections, a filler material deposited by flame spray...

... strength” f ycom with minimum yield strength f ymn (API started using f instead of Y for yield strength and σ instead of S for stress) is then used in each of the API collapse formulae to arrive at the corrected collapse resistance under the influence of axial stress and internal pressure...

... ). The integrity of subsea wells (to production-induced APB loads) cannot be managed merely by adjusting tubular strengths. Annular pressures must be mitigated and managed during the life of the well (Payne et al. 2003 ). A key aspect in the design of a mitigation strategy is the notion of allowable APB...