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Friday, October 19, 2012

Dynamics of Offshore Structures

Unique, cutting-edge material on structural dynamics and natural forces for offshore structures
Using the latest advances in theory and practice, Dynamics of Offshore Structures, Second Edition is extensively revised to cover all aspects of the physical forces, structural modeling, and mathematical methods necessary to effectively analyze the dynamic behavior of offshore structures. Both closed-form solutions and the Mathematica(r) software package are used in many of the up-to-date example problems to compute the deterministic and stochastic structural responses for such offshore structures as buoys; moored ships; and fixed-bottom, cable-stayed, and gravity-type platforms.

Throughout the book, consideration is given to the many assumptions involved in formulating a structural model and to the natural forces encountered in the offshore environment. These analyses focus on plane motions of elastic structures with linear and nonlinear restraints, as well as motions induced by the forces of currents, winds, earthquakes, and waves, including the latest theories and information on wave mechanics. Topics addressed include multidegree of freedom linear structures, continuous system analysis (including the motion of cables and pipelines), submerged pile design, structural modal damping, fluid-structure-soil interactions, and single degree of freedom structural models that, together with plane wave loading theories, lead to deterministic or time history predictions of structural responses. These analyses are extended to statistical descriptions of both wave loading and structural motion.
Dynamics of Offshore Structures, Second Edition is a valuable text for students in civil and mechanical engineering programs and an indispensable resource for structural, geotechnical, and construction engineers working with offshore projects.

Written by: James F. Wilson
No.of pages : 343 Pages

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Friday, October 12, 2012

Halliburton Undergraduate Scholarships, University of Aberdeen, UK

Halliburton, one of the world’s largest providers of products and services to the energy industry, is offering two Halliburton Undergraduate Scholarships.



Description:
Halliburton will award one Specialist Engineering Scholarship and one Specialist Geology and Petroleum Geology Scholarship. The successful applicants will each receive £2,000 per annual for either two or three years as determined by program classification, year of award and date of graduation.
In addition to the financial support, the Halliburton Undergraduate Scholarships offer:
·         Student Mentoring
·         The opportunity to apply for paid summer placement
Eligibility:
The Scholarships are open to students, on the degree programs listed below, commencing: 3rd year of a BEng, 3rd or 4th year of a MEng or 3rd year of a BSc in September 2012:
·         BEng Petroleum Engineering (H851)
·         BEng Engineering (Integrated) (H105)
·         BEng Engineering (Mechanical and Electrical) (HH36)
·         BEng Engineering (Mechanical with Computer Aided Engineering) (H3H1)
·         BEng Engineering (Mechanical with Materials) (H3J5)
·         BEng Engineering (Mechanical with Management) (H303)
·         BEng Engineering (Mechanical) (H300)
·         BEng Chemical Engineering (H813)
·         MEng Chemical Engineering (H810)
·         MEng Mechanical Engineering (H305)
·         MEng Mechanical and Electrical Engineering (HHH6)
·         MEng Mechanical Engineering with Materials (H3JM)
·         MEng Petroleum Engineering (H850)
·         BSc Geology and Petroleum Geology (F602)
You should note that the scholarships are open to all students regardless of nationality, where they are domiciled, or fee structure to which they belong to.
Criteria:
The Scholarships will be awarded on the basis of academic merit and demonstration of specific personal characteristics (please see Guidelines for Applicants for full details).

Application Procedure:Please complete the application form, and send it together with a recent CV, and your reference.
Deadline: 22nd of October 2012
Further Info:
If you have any queries not answered by the guidelines below please contact Jenny Styles (email:j.styles@abdn.ac.uk, tel: 01224 273597).
You will be told whether or not your application has been successful by post at the correspondence address on your application form by 9 November 2012.

Wednesday, October 10, 2012

Drilling fluids technology

The drilling fluid is related either directly or indirectly to almost every drilling problem. This is not to say that the drilling fluid is the cause or solution of all drilling problems, but it is a tool that can often be used to alleviate a problem situation.
Author: Max R. Annis , Martin V. Smith  |  No. of pages: 366 Pages

Many have thought that a magic additive would solve all of their problems and that the drilling fluid could somehow make up for poor drilling practices. This is simply not the case. It is a part of the drilling process and should be used to complement all other facets of the operation. Selection and application of the drilling fluid are key factors in the success of any drilling operation.

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Monday, October 8, 2012

Casing Types

According to the different functions, the total casing program consists of different casings strings.
1.Conductor Casing:
The function of the conductor is to enable circulation of the drilling fluid to the shale shakers without eroding the surface sediments directly below the rig foundation. The conductor prevents the subsequent casings from corrosion and may partly support the wellhead weight. Commonly a diverter is installed on top of the conductor casing to divert an unexpected inflow of formation fluids into the wellbore away from the rig-site and the personal. Conductor setting depths are in the range of 150 to 600 [ft], their seizes range from 36 to 20 [in].
2.Surface Casing:
The function of the surface casing is to prevent cave in of unconsolidated, weak near-surface formations as well as protect the shallow, freshwater sands from contamination with drilling mud. As the conductors, surface casing protects the subsequent casings from corrosion. Before the surface casing is set, no blow out preventers
(BOP) are installed. After setting the surface casing and installing the wellhead, a BOP is available to handle kicks when drilling the intermediate hole section. Surface casing setting depths are in the range from 300 to 5,000 [ft], their diameters range from 24 to 17-
1/2 [in]. Note that the surface casing setting depth is often determined by government or company policy and not selected due to technical reasoning.
3.Intermediate Casing:
The intermediate casing string is a purely technical casing. One or more may be necessary to handle abnormal formation pressures, unstable shale formations, lost circulation or cave-in zones. An intermediate casing may also be necessary to realize the planned
mud weight profile. When for example an abnormally pressured formation is encountered, it may have to be protected by an intermediate casing so when formation pressure of the formations below is normal, a lower mud weight can be applied. Intermediate casing diameters range from 17.5 to 9(5/8)[in].
4.Production Casing:
The production casing is set through the prospective production zone(s). This casing string protects the environment in case of production tubing failure and permits the tubing string to be maintained or replaced during the production life. Commonly production casing and production liners have gas-tight connections,
their diameters range from 9(5/8) to 5 [in]. A production
casing diameter of 7 [in] is encountered often.
5.Liners:

To save cost, the casing installed sometimes doesn’t reach until the surface but finishes within the previous string. Such a casing configuration is called liner. A liner is mounted on a so called “liner hanger” to the previous casing string, see sketch 8.2. Commonly the liner head is several hundred feet into the previous casing to enable a good cement seal. Various typical casing programs are shown in sketch 8.5. To develop a casing program, first the various casing setting depths have to be determined. Since the primary reason to drill a well is to produce hydrocarbons out of a reservoir, the final casing inside diameters have to be large enough to allow for the forecasted completion and production schemes. Factors like completion type (open hole, cased hole, monobore production, etc.), expected amount of production (production tubing seize), expected production forecast (e.g. need of gas-lift, etc.) and seize of evaluation tools to be run have to be considered. In general, for production purposes the well diameters shall be as large as possible. On the other hand, as small as possible hole seizes reduces the total cost of the well since:
1. drilling times are faster,
2. less mud has to be used (purchase and disposal of
mud),
3. smaller mud equipment can be used (cleaning, pumps, etc.),
4. smaller casings can be used (cheaper, higher strength at same grade),
5. smaller rig can be applied (lighter casings, smaller mud volume),
6. rig site can be smaller (especially important offshore and platform types like TLP where weights are limited).
Out of this reason a technology called slim-hole drilling was developed.
For more Information

Sunday, October 7, 2012

Deanship of Graduate Studies in "KFUPM"

Eligibility:
Please make sure you are eligible to apply and satisfy the following:
Basic application requirements for Master Programs in Science and Engineering:
  1. A four-year Bachelor’s Degree in engineering or science from a recognized institution with a major in the proposed field or evidence of suitable background for entering the proposed field. 
  2. A Grade-Point Average (GPA) of 3.00 or higher on a scale of 4.00 or equivalent, and a GPA of 3.00 in the subject of the major field.

Basic application requirements for Ph.D. Programs:
  1. An M.S. degree in engineering or science (after a four-year B.S. degree) from an institution whose graduate programs are equivalent to those of KFUPM, with a major in the proposed field or evidence of suitable background for entering the proposed field. 
  2. A minimum GPA of 3.00 on a scale of 4.00 or equivalent in both B.S. and M.S. degrees.
Basic application requirements for M.B.A.:
  1. A four-year Bachelor’s Degree from a recognized institution.
  2. A Grade-Point Average (GPA) of at least 3.00 on a scale of 4.00 or equivalent.
  3. At least one course in college level calculus which covers both differentiation and integration.
  4. A working knowledge of computers as evidenced by at least one course in that area (e.g. data processing, programming, information systems, etc.)
  5. At least one-year of full-time work experience. This requirement may be waived for graduate assistants, research assistants, and applicants with exceptional academic records.
Programs:
  • Below is a comprehensive list of all Master and PhD programs offered at KFUPM.
  • International applicants can apply only to Ph.D., M.Sc., and M.B.A. Program.
Degree Descriptions
  • Doctor of Philosophy (Ph.D.) [Dissertation-Based]
  • Master of Science (M.Sc.) [Thesis-Based]
  • Master of Engineering (M. Engg.) [Non-Thesis] 
  • Master of Business Administration (M.B.A) [Non-Thesis]
  • Master - Non-Thesis Master Program
Deadlines:
  • Deadline for submitting an online application is 8 October 2012.
  • Deadline for uploading mandatory documents is 15 October 2012.
  • Deadline for recommendation letters to be received via the online recommendation system is 15 October 2012.

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