Download or read book Hydraulic Downhole Drilling Motors written by W. Tiraspolsky and published by . This book was released on 1985 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Program for the Improvement of Downhole Drilling Motors written by John T. Finger and published by . This book was released on 1983 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Downhole Drilling Motors written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Dyna-Drills and turbodrills are used primarily for directional drilling where it is critical that the drillpipe not be rotated. These tools are not widely used for straight-hole drilling because of problems with bearing failures, low power outputs, low bit pressures, and high rotary speeds. The high rotary speeds produce bit bearing failures in 10 to 15 h, compared to 100 to 200 h life at lower rotary speeds. The technology now exists to develop reliable high-torque motors which will operate roller bits at speeds of 150 to 250 RPM and diamond bits at speeds of 400 to 800 RPM for periods of 100 to 200 hours. Sealed bearing assemblies which allow the bearings to operate in lubricant are being developed. These improved bearings allow bits to operate at the high bit weights needed for optimum drilling. Improved drilling motors can reduce drilling costs to significantly increase the number of wells drilled per drilling rig per year. Now, this is increasingly important because of the drilling rig shortage developing in this country. At least ten companies are working on the development of improved drilling motors and it is likely that several of these new motors will become commercially available within the next 2 to 3 years. Several companies are working on the development of improved high speed roller bits for use on drilling motors. The development of these high speed bits should significantly increase the use of drilling motors since bit bearing failures are a major problem when drilling with motors. The development of reliable, high-speed STRATAPAX bits should also increase motor useage since these bits drilling most effectively at rotary speeds of 300 to 500 RPM.
Download or read book Technology of Oil and Gas Wells Drilling by Downhole Drilling Motors written by Mikhail Dvoynikov and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is about devices that control, create and regulate weight on bit and methods of operational (automatic) control over drilling using downhole motor as a drillbit drive in the book. It concludes survey results analysis of equipment and technologies that focused on drilling optimization and automatization of directional and horizontal wells deepening. The drill string operation while combination drilling was highlighted briefly. The book represents methods and technique and also results of experimental actual weight on bit evaluation and recommends how to carry out an operational control of axial weight on bit. Also there is an analysis of patent pool in sphere of motor working elements improving. It defines the main engineering directions that increase energy characteristic values of hydraulic motors; provide reliability assurance and consistency of their operation in complicated geological and technical conditions. On the basis of recognized directions the authors present the engineering solutions, the results of these solutions survey and experimental-industrial implementation.
Download or read book Hydraulic Downhole Drilling Motors written by Wladimir Tiraspolsky and published by . This book was released on 1985-01-01 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Program to Develop Improved Downhole Drilling Motors written by William C. Maurer and published by . This book was released on 1978 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research progress is reported in two main sections: downhole drilling motor design and design of downhole motor seal, bearing, and test lubrication systems. Information on downhole drilling motor design is presented under the following subsection headings: Turbodrill development; positive displacement motor development; theory of Turbodrills; theory of positive displacement motors; basic motor components; forces on thrust bearings; thrust bearing design; radial bearing design; rotary seal design; sealed lubrication system; lubricants; and project status. The appendix contains information on high temperature lubricants. Information on the design of downhole motor seal, bearing, and test lubrication systems is presented under the following subsection headings: seal, bearing, and lubrication test design criteria; basic test conditions; independent and dependent variable parameters; alternative concepts for seal test apparatus; design of the seal test system; and bearing test system description. A schedule for remaining tasks is included. (JGB).
Download or read book Brief van Cornelius Swanenburg aan Nicolaas Heinsius 1620 1681 written by and published by . This book was released on 1672 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Program to Develop Improved Downhole Drilling Motors written by Terra Tek, Inc and published by . This book was released on 1976 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Program to Develop Improved Downhole Drilling Motors Final Report written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Significant progress was made during Phase I of the program toward finding solutions to the seal-and-bearing problems. A seal-test facility was designed and built to test full-scale seals for downhole motors. The tests will simulate closely the environment imposed on seals used in actual motor drilling. Many seal designs and concepts were considered, including novel designs and modifications to conventional seal types. Several of the most promising designs (including some novel designs) have been designated for testing in Phase II. Some of these seals have already been obtained and are available for testing. The preliminary design for a seal-bearing package test stand was completed. This facility will allow tests of full-size seal-bearing packs at simulated downhole conditions. The design of a new seal-bearing package was completed and is scheduled for full-scale testing in Phase II. This package will allow worn seals and bearings to be replaced easily. New thrust bearings were selected for application in the seal-bearing package. These bearings offer much greater load capacity and should increase bearing life significantly. (JGB).
Download or read book Program for the Improvement of Downhole Drilling Motors written by and published by . This book was released on 1983 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the work done under contract to Sandia National Labs and to the Department of Energy for improvement of downhole drilling motors. The focus of this program was the development of a better bearing-and-seal assembly that could be used in different kinds of drilling motors in a geothermal environment. Major tasks were: (1) design and construction of seal testing devices, (2) screening and evaluation of candidate seals in a simulated bearing/seal package, (3) tests of the most promising candidates in a full-scale bearing/seal package, and (4) analysis of failed seals after testing. The key results from this program were: (1) identification of seal/shaft/lubricant systems that performed well at high pressure and temperature, (2) identification of other seal designs that should be avoided for similar applications, and (3) evaluation of the test machines' design.
Download or read book Program to Develop Improved Downhole Drilling Motors Semiannual Report written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The following are described: the history of turbodrill development, positive displacement motor development, the theory of turbodrills, the theory of positive displacement motors, basic motor components, forces on thrust bearings, thrust bearing design, radial bearing design, rotary seal design, sealed lubrication system, lubricants, and project status. Included in appendices are materials on high-temperature lubricants and a progress report on the design of downhole motor seal, bearing, and lubrication test systems. (MHR).
Download or read book Positive Displacement Motors Theory and Applications written by Robello Samuel and published by . This book was released on 2015-01-29 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: Positive Displacement motor is a current reference book for positive displacement mud motor serves as a bridge between textbook and application based on technical know-how, practical experience, and academic theory. With its simple, practical focus, this book not only a resource guide to any drilling engineer, but also an important text on mud motor (Moineau principle) fundamentals:?Written for field users, and terminology concisely defined.'Written by word renowned experts in this field.
Download or read book Program for the Improvement of Downhole Drilling Motor Bearings and Seals written by Peter H. DeLafosse and published by . This book was released on 1983 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Program for the Improvement of Downhole Drilling motor Bearings and Seals Final Report written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A systematic laboratory testing and evaluation program to select high-temperature seals, bearings, and lubricants for geothermal downhole drilling motors is summarized.
Download or read book Program for the Improvement of Downhole Drilling Motor Bearings and Seals Phase IV Semi annual Report written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Four main areas of development for the project are covered: design and fabrication of a dynamometer and a mud cooling system for the Bearing-Seal Package Test Facility; modification of the Bearing-Seal Package Test Facility based on test results; testing of new lubricant samples from Pacer Lubricants, Inc., in the Terra Tek High Temperature Lubricant Tester; and testing of new seal types in the Terra Tek Sea Tester. The Maurer Engineering Report, Semi-Annual Progress Report on Improvement of Downhole Motor Bearings and Seals by Jeff L. Barnwell, has been included as Appendix B.
Download or read book Program for the Improvement of Downhole Drilling Motor Bearings and Seals written by and published by . This book was released on 1980 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Report on Phase I on the Development of Improved Seals and Bearings for Downhole Drilling Motors written by and published by . This book was released on 1977 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
