assignment 200

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School/ Department Name School of Engineering/ Petroleum Engineering

Program Code and Title: BEPF15 - Degree of Petroleum Engineering

Course Code and Title: 151PTE 321 – Engineering Geology

Assessment Number and Title: Assessment 3 – Assignment # 1

Assessment Type: Written Assignment

Assessment Location: ACK – Online Submission

Assessment Date: Saturday 9th January, 2021

Assessment Time/Duration: Due: Monday 11th January, 2021 at 11:55 PM

Student Name:

Student ID:

Section (s): G2P1, G2P2

Assessment General

Instructions:

• This is a calculation based project and you may use the class material such as your lecture notes, online resource, and software such as excel (if

needed).

• You may not discuss or share this project or questions related to the project with your fellow classmates or other individuals.

• Show your work, you may scan your hand work or insert calculation steps in this document.

• Please type your answers using Microsoft Words and ensure to type your equations correctly.

• If you require any assistance during the assessment period, please communicate through e-mail or MS Teams.

DO NOT WRITE IN THE AREA BELOW

Task Number Maximum Marks Student Marks

1 1.5

2 4

3 1.25

4 1.25

5 2

6 2.5

7 2.5

Total Mark 15

Assessor Feedback:

Assessor Name: Dr. Seyed Mehdi Seyed Alizadeh

Date:

Assessor Signature:

Student Name: Date:

Student Signature:

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Task 1: (1.5 Marks)

What are the processes that are responsible for the marine transgression and regression?

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Task 2: (4 Marks)

The matrix in figure below is a set of measurements for water saturations (in % points) at

different locations in a reservoir rock formation. The data are plotted on a regular grid with both

horizontal (x) and vertical (y) distance of 1 between neighbouring points of measurement.

a) Write down the general equation for variogram calculation.

(1 Mark)

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b) Calculate the experimental variogram for horizontal (x or 0°), vertical (y or 90°) and for the diagonal (45°) direction for the shortest possible nonzero distance in each case.

(3 Marks)

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Task 3: (1.25 Marks)

Match the following typical deposition with the corresponding basin name. The correspondence is one-

to-one.

RIFT FORELAND

FLEXURE

PROTO

OCEANIC

THROUGHS

STAGE

PASSIVE

MARGINS

FOREARC

REGION

Evaporite

s

River and

Lake

Deposits

Shallow

Marine

and

Clastic

Deposits

Arc

related

volcanics

Deeper

Water

Facies

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Task 4: (1.25 Marks)

Match the following typical sediments sources with the corresponding basin name. The

correspondence is one-to-one.

RIF

T

OCEAN

BASINS

INTRACRATONIC

BASINS

PASSIVE

MARGINS

ACCRETIONARY

COMPLEXES

Sediments are supplied

from rivers.

Fluvial and lacustrine

sediments.

The clastic sediment

supply is largely

from the adjacent

continental land area.

In the deeper parts

sedimentation is

mainly pelagic,

consisting of fine-

grained biogenic

detritus and clays.

In some places sediments

are carried down the

subduction zone.

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Task 5: (2 Marks)

Draw a correlation for the three geologic sequences shown in the three locations in Figure 1 using the

fossils to establish the relative age for each sequence.

Outcrops at three different locations

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Task 6: (2.5 Marks)

In the geologic sequence shown in Figure 1 establish the right time sequence of the five formations,

from the oldest to the youngest.

A

B

E

C D

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Task 7: (2.5 Marks)

The coefficient of variation for permeability for several core plugs from different rock

formations are as follows:

Rock

Type

Coef. Of

variation of

Permeability

Degree of heterogeneity

Homogeneous Heterogeneous Highly

Heterogeneous

A 0.75

B 1.1

C 0.34

D 1.8

E 0.21

F 0.83

(a) In the table above, specify the degree of heterogeneity for each rock type by a (x) sign in

front of the correct choice.

(1.5 Marks)

(b) Explain why you have selected the choices for the previous part.

(1 Mark)