Download or read book Mechanical Formation Testing written by D. T. Hoenshell and published by . This book was released on 1938 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Formation of Deformation induced Ferrite During Mechanical Testing written by John Richard Lewis and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Formation Testing written by Wilson C. Chin and published by John Wiley & Sons. This book was released on 2019-03-12 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new volume, the third in Wiley-Scrivener's series on formation testing, reviews pressure transient interpretation and contamination analysis methods, providing numerous practical discussions and examples with rigorous formulations solved through exact, closed form, analytical solutions. This new volume in the "Formation Testing" series further develops new methods and processes that are being developed in the oil and gas industry. In the 1990s through 2000s, the author co-developed Halliburton's commercially successful GeoTapTM real-time LWD/MWD method for formation testing, and also a parallel method used by China Oilfield Services, which enabled the use of data taken at early times, in low mobility and large flowline volume environments, to support the important estimation of mobility, compressibility and pore pressure, which are necessary for flow economics and fluid contact boundaries analyses (This work was later extended through two Department of Energy Small Business Innovation Research awards.). While extremely significant, the effect of high pressures in the borehole could not be fully accounted for. The formation tester measures a combination of reservoir and mud pressure and cannot ascertain how much is attributed to unimportant borehole effects. The usual approach is "simply wait" until the effects dissipate, which may require hours, which imply high drilling and logging costs, plus increased risks in safety and tool loss. The author has now modeled this "supercharge" effect and developed a powerful mathematical algorithm that fully accounts for mud interations. In short, accurate predictions for mobility, compressibility and pore pressure can now be undertaken immediately after an interval is drilled without waiting. This groundbreaking new work is a must-have for any petroleum, reservoir, or mud engineer working in the industry, solving day-to-day problems that he or she encounters in the field.
Download or read book Formation of Deformation Induces Ferrite During Mechanical Testing written by John R. Lewis and published by . This book was released on 1996 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: "It is concluded that, from an industrial perspective, unless unbending can be performed at strain rates in excess of $ rm 3 times 10 sp{-2} s sp{-1},$ it would be prudent to carry out this operation either above the Ae$ sb3$ or below the (undeformed) Ar$ sb3$ temperature for the steel in question." --
Download or read book Formation of Deformation induced Ferrite During Mechanical Testing written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanical Wear Fundamentals and Testing Revised and Expanded written by Raymond J. Bayer and published by CRC Press. This book was released on 2004-04-22 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by a tribological expert with more than thirty years of experience in the field, Mechanical Wear Fundamentals and Testing, Second Edition compiles an extensive range of graphs, tables, micrographs, and drawings to illustrate wear, friction, and lubrication behavior in modern engineering applications. The author promotes a clear understandin
Download or read book Formation and Mechanical Testing of Adhesive Junctions Between Fibers written by Kathryn Elizabeth Messner and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanical Laboratory Methods written by Julian C. Smallwood and published by . This book was released on 2015-09-27 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Mechanical Laboratory Methods: The Testing of Instruments and Machines in the Mechanical Engineering Laboratory and in Practice This work has been enlarged and modified according to the requirements indicated by its use. The section dealing with instruments contains a number of subjects not covered before, notably on recorders. The treatment of valve setting and steam engine testing is enlarged and improved. Under the heading of steam auxiliaries, the testing of condensers and feed water heaters is described. A new section is added on the testing of refrigerating machinery, ammonia absorption and compression systems. Among the other newly included tests is one for the horse-power output of electric motors, which, it is believed, will be found of convenience in connection with the testing of motor-driven mechanical units. In all there are described twelve additional tests. Sufficient tabular matter is appended in this edition to enable the user to calculate all the results sought by the various tests. This includes tables of the properties of steam and ammonia, a Mollier diagram, tables of areas of circles in three figures for cylinder calculations, etc., four place logarithms, densities of water, and a section on hygrometry, together with all explanations necessary. All old and new numerical data and answers to problems have been thoroughly checked, and mistakes thus found corrected. The author wishes to express his obligation to the various users of the first edition who have suggested improvements and additions. Such suggestions have been considered almost exclusively in the work of revision. It is modestly believed, therefore, that the book is materially bettered through this cooperation. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Reproducibility and Accuracy of Mechanical Tests written by and published by . This book was released on 1977 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Simulation and Interpretation of Formation tester Measurements Acquired in the Presence of Mud filtrate Invasion and Geomechanical Deformation written by Hee Jae Lee and published by . This book was released on 2008 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wireline formation testers are widely used to measure in-situ fluid pressure, to retrieve reservoir fluid samples, and to estimate formation mobility. However, formation-tester measurements are invariably influenced by mud-filtrate invasion due to drilling overbalance pressure, thereby affecting the acquisition of uncontaminated fluid samples and the estimation of in-situ petrophysical properties. Moreover, in cases of stress-sensitive formations, rock mechanical deformation may take place due to the combined effects of in-situ stress, wellbore stress imposed by mud overbalance, and wellbore pressure exerted by the formation tester itself. The latter deformation causes near-borehole perturbations of porosity and permeability that are evidenced by pressure transients measured during build-up and shut-in stages of formation testing, especially when using dual-packer pressure probes. If unaccounted for, such perturbations can also bias the estimation of in-situ fluid and petrophysical properties. Conversely, the detection and quantification of elastic mechanical deformation effects on measured pressure transients can be used to infer the underlying rock elastic and petrophysical properties of the stressed formation. The purpose of this dissertation is twofold: (a) to quantify the relative effects of mud-filtrate invasion and geomechanical deformation on pressure-transient measurements acquired with dual-packer formation testers, with special emphasis on the appraisal of near-borehole porosity and permeability enhancement due to elastic mechanical deformation, and (b) to develop a new method to estimate elastic and petrophysical properties of rock formations from dual-packer pressure transients acquired in mechanically deformable rocks. Numerical simulations of mud-filtrate invasion are performed with an axialsymmetric two-phase (water-oil) method that enforces the specific boundary and source conditions of a wellbore that penetrates horizontal layers. Simulations are performed in a cylindrical system of coordinates using finite differences together with an implicit-pressure, explicit-saturation time-marching approach that also incorporates the dynamic conditions of immiscible mudcake growth due to filtration of solids at the wellbore. Laboratory experiments are conducted to further study pressure transients due to formation testing in the presence of invasion with water-base mud. Experiments include the effects of both mud circulation and mudcake on pressure-transient measurements and are performed on a variety of rock-core samples. Measurements are successfully validated with both the developed simulator and a commercial simulator, thereby lending credence to the assumed model of dynamic solid filtration. The developed mud-filtrate fluid-flow simulator is coupled with a finite-element code that assumes 2D axial-symmetric linear elasticity to quantify geomechanical deformation. Coupling of mechanical deformation with variations of porosity and permeability assumes a staggered-in-time, iteratively coupled volumetric model. We assume a dual-packer formation tester to quantify elastic deformation effects in stress-sensitive formations as a preamble to estimating in-situ elastic and petrophysical properties. It is shown that near-wellbore spatial variations of porosity and permeability due to mechanical deformation can bias the corresponding pressure-transient measurements acquired with the dual-packer formation-tester. The degree of biasing depends on the rigidity of the stressed formation. Finally, we develop a method to estimate in-situ petrophysical and elastic rock properties from pressure-transient measurements acquired with formation-testers in mechanically deformable rocks. Petrophysical and elastic properties will change in both time and space depending on the time evolution of the conditions that influence mechanical deformation. We use a commercial reservoir simulator to calculate pressure transients due to fluid pumpout in the presence of both invasion and mechanical deformation. A pre-stressed initial condition due to mud overbalance is assumed with incremental deformation due to surface force applied by the packers or probes, and active flow imposed by the formation-tester. In so doing, we consider pressure data sets acquired with both flow and observation probes during draw-down and build-up periods. For cases where a-priori information can be sufficiently constrained, our estimation method provides reliable and accurate estimates of petrophysical and elastic properties in the presence of moderate levels of random noise.
Download or read book Simulation and Interpretation of Formation tester Measurements Acquired in the Presence of Mud filtrate Invasion and Geomechanical Deformation written by and published by . This book was released on 2008 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wireline formation testers are widely used to measure in-situ fluid pressure, to retrieve reservoir fluid samples, and to estimate formation mobility. However, formation-tester measurements are invariably influenced by mud-filtrate invasion due to drilling overbalance pressure, thereby affecting the acquisition of uncontaminated fluid samples and the estimation of in-situ petrophysical properties. Moreover, in cases of stress-sensitive formations, rock mechanical deformation may take place due to the combined effects of in-situ stress, wellbore stress imposed by mud overbalance, and wellbore pressure exerted by the formation tester itself. The latter deformation causes near-borehole perturbations of porosity and permeability that are evidenced by pressure transients measured during build-up and shut-in stages of formation testing, especially when using dual-packer pressure probes. If unaccounted for, such perturbations can also bias the estimation of in-situ fluid and petrophysical properties. Conversely, the detection and quantification of elastic mechanical deformation effects on measured pressure transients can be used to infer the underlying rock elastic and petrophysical properties of the stressed formation. The purpose of this dissertation is twofold: (a) to quantify the relative effects of mud-filtrate invasion and geomechanical deformation on pressure-transient measurements acquired with dual-packer formation testers, with special emphasis on the appraisal of near-borehole porosity and permeability enhancement due to elastic mechanical deformation, and (b) to develop a new method to estimate elastic and petrophysical properties of rock formations from dual-packer pressure transients acquired in mechanically deformable rocks. Numerical simulations of mud-filtrate invasion are performed with an axialsymmetric two-phase (water-oil) method that enforces the specific boundary and source conditions of a wellbore that penetrates horizontal layers. Simulations are performed in a cylindrical system of coordinates using finite differences together with an implicit-pressure, explicit-saturation time-marching approach that also incorporates the dynamic conditions of immiscible mudcake growth due to filtration of solids at the wellbore. Laboratory experiments are conducted to further study pressure transients due to formation testing in the presence of invasion with water-base mud. Experiments include the effects of both mud circulation and mudcake on pressure-transient measurements and are performed on a variety of rock-core samples. Measurements are successfully validated with both the developed simulator and a commercial simulator, thereby lending credence to the assumed model of dynamic solid filtration. The developed mud-filtrate fluid-flow simulator is coupled with a finite-element code that assumes 2D axial-symmetric linear elasticity to quantify geomechanical deformation. Coupling of mechanical deformation with variations of porosity and permeability assumes a staggered-in-time, iteratively coupled volumetric model. We assume a dual-packer formation tester to quantify elastic deformation effects in stress-sensitive formations as a preamble to estimating in-situ elastic and petrophysical properties. It is shown that near-wellbore spatial variations of porosity and permeability due to mechanical deformation can bias the corresponding pressure-transient measurements acquired with the dual-packer formation-tester. The degree of biasing depends on the rigidity of the stressed formation. Finally, we develop a method to estimate in-situ petrophysical and elastic rock properties from pressure-transient measurements acquired with formation-testers in mechanically deformable rocks. Petrophysical and elastic properties will change in both time and space depending on the time evolution of the conditions that influence mechanical deformation. We use a commercial reservoir simulator to calculate pressure transients due to fluid pumpout in the presence of both invasion and mechanical deformation. A pre-stressed initial condition due to mud overbalance is assumed with incremental deformation due to surface force applied by the packers or probes, and active flow imposed by the formation-tester. In so doing, we consider pressure data sets acquired with both flow and observation probes during draw-down and build-up periods. For cases where a-priori information can be sufficiently constrained, our estimation method provides reliable and accurate estimates of petrophysical and elastic properties in the presence of moderate levels of random noise.
Download or read book Mechanical Comprehension Tests written by Richard Anthony McMunn and published by . This book was released on 2012-06 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanical comprehension tests are used widely during technical selection tests within the careers sector. Mechanical comprehension and reasoning tests combine many different elements. The test itself is usually formed of various pictures and diagrams that illustrate different mechanical concepts and principles. Mechanical comprehension and reasoning tests are normally highly predictive of performance in manufacturing, technical and production jobs. This comprehensive guide will provide you with sample test questions and answers to help you prepare for your mechanical comprehension test. An explanation of the tests and what they involve; Sample timed-tests to assist you during your preparation; Advice on how to tackle the tests; Understanding mechanical advantage; Answers and explanations to the questions; An introduction chapter for fault diagnosis.
Download or read book Microstructural and Mechanical Property Characterization of Shear Formed Aerospace Aluminum Alloys written by Lillianne P. Troeger and published by . This book was released on 2000 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced manufacturing processes such as near-net-shape forming can reduce production costs and increase the reliability of launch vehicle and airframe structural components through the reduction of material scrap and part count and the minimization of joints. The current research is an investigation of the processing-microstruture-property relationships for shear formed cylinders of the Al-Cu-Li-Mg-Ag alloy 2195 for space applications and the Al-Cu-Mg-Ag alloy C415 for airframe applications. Cylinders which had undergone various amounts of shear-forming strain were studied to correlate the grain structure, texture, and mechanical properties developed during and after shear forming.
Download or read book The Mechanical Testing of Metals and Alloys written by Percy Field Foster and published by . This book was released on 1936 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanical Connections in Cold formed Steel written by John Fraczek and published by . This book was released on 1975 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wood Particle Board written by Emanuel L. Heller and published by . This book was released on 1961 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metals Mechanical Testing written by American Society for Testing & Materials and published by . This book was released on 2004-04 with total page 1328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work contains approved ASTM standards, provisional standards, and related material, including classifications, guides, specifications, and glossaries, for mechanical testing, elevated and low-temperature tests, and metallography. Coverage includes crack growth behavior, cyclic deformation and fatigue crack formation, calibration of mechanical
