The document describes Mohammed Darsi Abdulrahman Nedham's invention of a portable tin modeling set for teaching geology. The invention was conceived in Russia, registered in Yemen, and defended for his PhD in China. The portable tin allows students to easily construct geological models and sections without expensive equipment. Nedham believes the invention will find widespread applications in geology education. He has worked as a petroleum engineer and geologist in Yemen and received advanced degrees from universities in Russia and China.

1. The invention, which born in Russia, registered in
Yemen and defended with Excellency in China
Dr. Eng. Mohammed Darsi Abdulrahman Nedham *
(Ministry of Oil and Mineral Resources; Petroleum Exploration and Production
Board; Aden Office, Al-Mu’allah, P. O. Box: 5176, Republic of Yemen)
Introduction
It is known, all over the world, in all Earth science institutes, colleges, universities
and geoscientific centers, which their teachers or trainers use one, two or three of the
following ways to explain any geological problem to their students, trainees and
people interested in the geological field. Related to a geological phenomena (inshore,
offshore or subsurface), stratigraphy (such as making stratigraphic columns,
geological sections, cross sections and correlations), problems faced in petroleum
field geology and modeling (such as making 3 dimension geological models)
1. The first way, I call it the traditional way, where teachers or trainers use the
black board or any primary way to explain any geological episode
happened on the surface or subsurface of any geological research area
around the world (see, above-mentioned geological problems) to their
students, trainee and people interested in the geological field. (It is known,
that this way need for special preparations for teachers and trainers, who
are going to explain the above-mentioned geological problems to their
students, trainee and people interested in the geological field using basic
tools. At the same time students, trainee and people interested in the
geological field are highly in need for more special preparations to
understand how to solve such problem mentioned above and with one main
aim to be on the right path all the time. Using this way only means lost a
lot of time by teachers and trainers on explaining and also by students,
trainee and people interested in the geological field on understanding and
solving such problems.

2. 2. The second way, I call it the classical way, where teachers or trainers add
woody or plastic three dimension geological models to their presentations
to explain any geological episode happened on the surface or subsurface of
any geological research area around the world (see, above-mentioned
geological problems) to their students, trainee and people interested in the
geological field. (It is known, that this way also need for special
preparations for teachers and trainers, who are going to explain the above-
mentioned geological problems to their students, trainee and people
interested in the geological field using woody or plastic 3 dimension
geological models. At the same time students, trainee and people interested
in the geological field are highly in need for more special preparations to be
in the right course, which mean understanding teachers and trainer's
courses plus making a geological trip to the interested or the equivalent
area to fix the idea in their minds. Using this way with the help of first way
means lost of time and money also.
3. The third way, I call it the modern way, where teachers or trainers like to
add modern computers with modern geological software applications to
their presentations to explain any geological episode happened on the
surface or subsurface of any geological research area around the world (see,
above-mentioned geological problems) to their students, trainee and people
interested in the geological field. (It is known, that this way also need for
special preparations for teachers and trainers, who are going to explain the
above-mentioned geological problems by using modern computers with
specific geological software applications. At the same time students, trainee
and people interested in the geological field are highly in need for more
special preparations to be in the right course by follow the last news on
today revolution in technology. Using this way mainly with the help of the
above mentioned two ways means less time, but its need for a lot of money
on buying modern computers with modern geological software
applications.
My way is very simple. It is about an invention for the first new Portable Tin,
which look like a mathematical set. It is a classical modern way, where teachers or
trainers are going to learn their students, trainee and people interested in the
geological field practically how to use my Portable Tin to simulate any geological

3. episode happened on the surface or subsurface of any geological research area
around the world (see, above-mentioned geological problems) to their students,
trainee and people interested in the geological field. . No need for special
preparations for teachers and trainers. No need for special preparations for
students, trainee and people interested in the geological field. My portable Tin can
made of wood, glass, plastic or iron or any other materials. It is very cheap and
easy to use by all. It just need for more care by the factory on doing it. I am sure,
this Yemeni Portable Tin are going to find a wild applications by secondary
school students (who study elementary geology), and by the students of institutes,
collages and universities as well as by the researchers and those working in the
field of oil.
Patent history and its main aim
In 1985, I was admitted to the Patrice Lumumba Peoples’ Friendship University
decorated with the order of friendship among Peoples and in 1991 completed the full
course of the same University having specialized in ‘’Geology and Exploration of
Mineral Deposits (Oil and Gas Fields). By the resolution of the state Examination
Commission of May 29, 1991, I am qualified as a Petroleum Engineer, Geologist and
by the special of the state Examination Commission I am awarded the degree of
Master of Science in geology. During my study in the Patrice Lumumba Peoples’
Friendship University decorated with the order of friendship among Peoples and
especially when I took the course of Petroleum Field Geology, I found that we as
student at that’s time spend a lot of time on doing geological section, cross section,
correlations and 3D models. I had a new modest idea for a new project on the first
portable tin, which can be used in the field of geology to construct 3 dimension
geological models. At that’s time, I explained my new idea and project on the above-
mentioned portable Tin to my teacher, who advice me to continue my work and
research on creating the first portable Tin in the world, the idea which born in
Moscow to help making geological models.
On March 02, 1992 I worked in the Petroleum Exploration and Production Board,
(Aden’s Branch; Ministry of Oil and Mineral Resources), as a Petroleum Engineer,
Geologist. As a result of my work done on improving this modest project, the above-
mentioned idea was registered in Yemen on March 25, 1995 as a new invention.
I called the above-mentioned Portable Tin the 3DYGM For All Tin. The Term
3DYGM- For All Tin: means (the Three Dimension Yemeni Geological Model for
All Tin). The above mentioned Portable Tin will be used to construct the following
models:
1. Geological Sections
2. Cross-Sections
3. 3D (three Dimensions) geological models.
The 3DYGM For All Portable Tin is going to make it easy to study the following
scientific materials:
1. Petroleum Field Geology.
2. Stratigraphy.

4. 3. Modeling.
This first new Portable Tin, which look like a mathematical set is going to be used
by secondary school students, and by the students of institutes, collages and
universities as well as by the researchers and those working in the field of oil.
This Invention, which born in Moscow (Russia), grew, improved and registered
personally in Aden (Yemen) on March 25 1995 found a lot of care and attention by
my university Chinese Professors, who advice me to write about it and to introduce it
as a part of my Doctoral Thesis.
The kind hand given to me by Chinese scientists encouraged me to make another
new patent during my study in China, I am going to introduce it to you later.
On May 29, 2003. I discussed and defended my first and second patents as a part
of my Doctoral Thesis in Jilin University, where I proved, that my two new patents
are going to find a wild application in the filed of petroleum geology in the near
future.
Conclusions
As a conclusion, I would like to fix in minds the following:
(1) The most interesting results and most important facts, we are going to receive
as a result of using the 3DYGN For All Portable Tin in the field of geology is that,
most of it users are going to like it and to ask for more and more specific serials of the
above-mentioned Portable Tin to be used in different branches of Earth science.
(2) 20 years passed as my invention born in Russia. 16 years passed as I
personally registered my patent officially in Yemen and 8 year passed as I defended it
with Excellency in China. I am very optimistic, that one day all my works are going
to find a place under the sunshine.
For more information, I would like to ask interested readers in this invention to
read the interview held by the 14TH October Newspaper correspondent (Mr. Ahmed
Muftah), with me on the 25th of August 1994 and for more detailed information
related to the project itself don’t hesitate to contact me.
My dear readers for more information on all scientific work I ask you to read my
thesis study work done in China, which I already add it on this respectful website
(http://www.slideshare.com) as a part of my LinkedIn profiles.
Acknowledgement
I would like to extend my thanks to the Yemeni Ministry of High Education, the
Patrice Lumumba Peoples’ Friendship University decorated with the order of
friendship among Peoples (the Russian University, Now), the Yemeni Ministry of Oil

5. and Minerals (MOM), the Petroleum Exploration and Production Board (In Sana'a
and Aden), and the Earth Science College of Jilin University for their help and
support.
I am indebted to Professors Wang Dong Po, Xue Lin Fu and Wang Xi Kui (Earth
Science College of Jilin University), who provided many helpful suggestions and
comments.
I am also so indebted to my parents, family and friends for their support.
About the Author
• Dr. Eng. Mohammed Darsi Abdulrahman Nedham, born on November 17,
1963, Crater (Aden). Petroleum Engineer, Geologist; Married have 2 sons and
one daughter. 4 languages (Arabic, English, Russian and Chinese); Education:
Graduated from the Earth Science College of Jilin University as a Doctor of
Science in Mineralogy, Petrology and Stratigraphy. Have a PhD in Subsurface
Geology on May 29 2002 and also graduated from the Russian among People
Friendship University in 1991 as a Petroleum Engineer, Geologist (M.S.
degree). Appointments: Petroleum Exploration and Production Board, Aden
Branch, Ministry of Oil and Mineral Resources; Petroleum Engineer; Senior
Geologist; Representative; Coordinator. Publications: 10 scientific papers, 6
published in the Yemen Times Newspaper, 3 in China (2 in World Geology
and 1 in the Journal of Geoscientific Research of Northeast Asia) and the last
one in Russia. Have two patents. Have more than 18 Certificate from different
institutes, centers, organizations and clubs. Membership: ASO - Arab Scientist
Organization (12/2003 - Present), Member; IBC - International Biographical
Center (2000 - Present), honored to be a member of its Research Council;
GAC - Geological Association of Canada (2000 - Present), Fellow; AAPG -
American Association of Petroleum Geologist (2000 - Present), Member;
YGS - Yemen Geological Society (1992 - Present), Member; MOCT -
Ministry of Culture and Tourism /Culture Center/ (1979 - 1990) and other
memberships ... Groups: Oil and Gas Geoscience Systems; Geoscience Global
Recruitment Network; Jilin University of Technology Alumni; Green;
Canadian Petroleum Geoscience Network; The Geological Society of
America; Women's Global Leadership Network E-mail:
madras_cc@yahoo.com. Dr. Eng. Mohammed Darsi Abdulrahman Nedham
began his professional career by working as petroleum engineer, geologist in
the Petroleum Exploration and Production Board (Aden Branch). His scientific
interest is concentrated on the Geological Research History Work, Earth
science software application and basin-modeling problems. Last position:
Member, Block S2 Operating Committee.