Preferred Language
Articles
/
alkej-217
Experimental and Theoretical Investigation of Impact Dynamic Plasticity for CK45
...Show More Authors

Abstract

This paper represents a study of the effect of the soil type, the drilling parameters and the drilling tool properties on the dynamic vibrational behavior of the drilling rig and its assessment in the drilling system. So first, an experimental drilling rig was designed and constructed to embrace the numerical work.

The experimental work included implementation of the drill-string in different types of soil with different properties according to the difference in the grains size, at different rotational speeds (RPM), and different weights on bit (WOB) (Thrust force), in a way that allows establishing the charts that correlate the vibration acceleration, the rate of penetration (ROP), and the power consumption curves with the depth of drilling.

In addition to that the ANSYS Workbench (the 14.0 release) software was used to simulate and verify the experimental results. And it was also used to model other numerical cases with different drill bit diameters.

Keywords: Soil, Vibration, and Drilling Rig.

View Publication Preview PDF
Quick Preview PDF
Publication Date
Tue Feb 13 2018
Journal Name
Revista Publicando
Cognitive bases of phono-grammar in russian and arabic
...Show More Authors

Publication Date
Fri Feb 04 2022
Journal Name
Neuroquantology
Electrical and Structural Properties of CuBa2LaCa2Cu4O11+δ Superconducting System
...Show More Authors

In this work, the superconducting CuBa2LaCa2Cu4O11+δ compound was prepared by citrate precursor method and the electrical and structural properties were studied. The electrical resistivity has been measured using four probe test to find the critical temperature Tc(offset) and Tc(onset). It was found that Tc (offset) at zero resistivity has 101 K and Tc (onset) has 116 K. The X-ray diffraction (XRD) analysis exhibited that a prepared compound has a tetragonal structure. The crystal size and microscopic strain due to lattice deformation of CuBa2LaCa2Cu4O11+δ were estimated by four methods, namely Scherer(S), Halder-Wagner(H-W), size-strain plot (SSP) and Williamson-Hall, (W-H) methods. Results of crystal sizes obtained by these meth

... Show More
View Publication
Scopus Crossref
Publication Date
Thu Aug 03 2023
Journal Name
Journal Of Kufa For Mathematics And Computer
Category Theory and New Classes of Semi Bornological Group
...Show More Authors

Publication Date
Wed Jan 06 2016
Journal Name
Mathematical Theory And Modeling
The act of an operator and Abstract cauchy problem
...Show More Authors

Publication Date
Fri Mar 28 2003
Journal Name
Journal Of Engineering
STABILITY OF UNREINFORCED AND REINFORCED EMBANKMENTS ON SOFT SOILS
...Show More Authors

Publication Date
Fri Apr 10 2015
Journal Name
Arabian Journal Of Geosciences
Radiological assessment of Iraqi phosphate rock and phosphate fertilizers
...Show More Authors

View Publication
Scopus (12)
Crossref (8)
Scopus Clarivate Crossref
Publication Date
Mon Oct 04 2021
Journal Name
Palarch’s Journal Of Archaeology Of Egypt
GEORGE MASON AND THE VIRGINIA BILL OF RIGHTS 1776
...Show More Authors

After the persistence of the British policy of oppression and control over the American colonies and the attempts to obliterate the identity of their inhabitants, the colonies worked on moving forward towards achieving independence, and Virginia was the first to initiate the development of the new government frameworks, through George Mason in drafting the Virginia Bill of Rights in 1776, which expressed the philosophy of the era Enlightenment and independent revolutionary thought, which called for equality and natural rights for individuals and the need for a free popular government that works for the common good.

View Publication Preview PDF
Publication Date
Sat Jan 01 2022
Journal Name
Brazilian Journal Of Pharmaceutical Sciences
Exploring Work Satisfaction and Characteristics of Iraqi Pharmacist Workforce
...Show More Authors

View Publication
Scopus (5)
Crossref (3)
Scopus Clarivate Crossref
Publication Date
Sun Feb 10 2019
Journal Name
Journal Of The College Of Education For Women
Denotation of Stanza and couplet between the two sonnets
...Show More Authors

The stanza in the sonnet has been defined as a set of poetic lines followed after proem
and be the same meter as that of proem in complete stanza, but in rhyme scheme different
from that meter. The couplet is defined as set of poetic lines that followed the stanza and be as
the same meter as that of stanza, but with different rhyme scheme. This definition is approved
by all specialized in field of Andalus literature and it was also proven to them that this
construction emptied of indications. This meter has endeavored to prove that that there were a
difference in denotation for meaning between the stanza and couplet. Thus, the sonneteers
have outweighed the sonnet of the blind "Tutaili" to their sonnets as they felt

... Show More
View Publication Preview PDF
Publication Date
Fri Feb 01 2019
Journal Name
Journal Of The College Of Education For Women
Words worth and the Intention of AL. Sayyab Discourse
...Show More Authors

Words worth and the Intention of AL. Sayyab Discourse

View Publication Preview PDF