PGE337
Introduction to Geostatistics
Homework # 1 Solution Key
Due: Wednesday, September 7th, 2011 by 5 pm
1. (10 pts) Based on weather records collected since 1929, a metereologist predicts the average daytime
temperature in Austin in September this year

PGE337
Introduction to Geostatistics
Homework # 4 Solution
Question 1
The following porosity data was measured in a reservoir:
Porosity
0.28
0.31
0.35
0.29
0.15
0.33
0.27
0.18
0.2
0.26
a. (5 points) Is there any evidence of clustering of the data? If so,

PGE 337/383
INTRO TO GEOSTATISTICS- HW#1 Key
Events and Definitions
1. Assume that you have two fair dice, which you throw one at a time. Hence, the
experiment is the throw of two dice and the sample space is = cfw_(1,1), (1,2), ., (6,6).
Determine the pr

Introduction to Geostatistics
PGE337
Homework 6
1. Statistical Argument. The exam results for three students, A, B, and C, are shown
below. The final course grade is to be based on the arithmetic average of the three
exams. All three students have the sam

PGE 337/383
INTRO TO GEOSTATISTICS- HW#1
Events and Definitions
1. Assume that you have two fair dice, which you throw one at a time. Hence, the
experiment is the throw of two dice and the sample space is = cfw_(1,1), (1,2), ., (6,6).
Determine the probab

Geostatistics Petroleum and Geosystems Engineering 337 (19065) Spring 2008 Homework Assignment #4 Section 4.1 (Page 201) 3. When a certain glaze is applied to a ceramic surface, the probability is 5% that there will be discoloration, 20% that there w

Introduction to Geostatistics
PGE383.20/337
Mid Term Key
Open book, notes. Read each problem carefully and show all work.
1. Bias and Precision.
a. (10 points) In your own words define bias and precision.
Solution: Bias is the systematic (over many repeti

Homework 10
Using the Kriging Interpolator
The objectives of this exercise are
to gain practice in using Kriging and semivariograms, and
to provide insights into the relative merits of interpolators
Interpolation occurs in a several applications usually

Introduction to Geostatistics
PGE 337, Spring 2016
Unique Number: 19215
Homework Assignment No. 4
February 11, 2016
Due on Thursday, February 18, 2016, before 11:00 PM
Name: _
UT EID: _
Objectives:
a) To practice applications of PDF and CDF applications i

Homework 10 Key
Using the Kriging Interpolator
The objectives of this exercise are
to gain practice in using Kriging and semivariograms, and
to provide insights into the relative merits of interpolators
Interpolation occurs in a several applications usu

Homework 9
PGE 383.20/337
1. Properties of the Semivariance Before the intrinsic hypothesis is invoked, the
semivariance can be regarded as a function of two variables.
2(Z(x), Z(x+h) = E(Z(x) - Z(x+h)2)
Show the following:
a. (a, a) = 0
where a is a cons

Column F
Column F
Column F
Column F
Column F
Column F
Column F
Per C a pit a A nnua l Gr oss D omest ic Pr oduct , US $
1000000
Column F
Column F
Qatar
U.S.A.
100000
Source: CIA World Factbook
(May 2010)
China
Prosperity
10000
Chad
India
1000
Congo
100
0

Homework 8
PGE 337
Applying Regression
The objective of this exercise is to give you experience in linear regression. We have
gone through regression in class but there is more to it than determining the coefficients.
Here is a tentative sequence for a li

Mea n
4 3.6
SD
18.1
Ra nge
83.0
Pa rtitioned Sta tistics
Fr. Sa nd
0.51
Mea n Sa nd
29 .36
SD Sa nd
6 .06
Mea n Sha le
58.56
SD Sha le
15.32
Number
36 81
59 .5
26 .3
124 .2
G a mma Ra y Rea dings
56 .5
22.4
9 5.2
0.51
37.4 6
8.71
82.51
17.79
3781
4 7.3
17

Introduction to Geostatistics
PGE 337, Spring 2016
Unique Number: 19215
Homework Assignment No. 6
February 25, 2016
Due on Thursday, March 3, 2016, before 11:00 PM
Name: _
UT EID: _
Objectives:
a) To practice hypothesis tests including T-Test, F-Test, and

Introduction to Geostatistics
PGE 337, Spring 2016
Unique Number: 19215
Homework Assignment No. 1
January 21, 2016
Due on January 28, 2016, before 11:00 PM
Name: _
UT EID: _
Objectives:
a) To understand the course policies and objectives
b) To receive fee

Introduction to Geostatistics
PGE 337, Spring 2016
Unique Number: 19215
Homework Assignment No. 2
January 28, 2016
Due on February 4, 2016, before 11:00 PM
Name: _
UT EID: _
Objectives:
a) To practice fundamentals of probability
b) To practice conditional

Introduction to Geostatistics
PGE 337, Spring 2016
Unique Number: 19215
Homework Assignment No. 7
March 3, 2016
Due on Wednesday, March 9, 2016, before 11:00 PM
Reason: I would like to be able to upload the solution before the second midterm exam to
help

Introduction to Geostatistics
PGE 337, Spring 2016
Unique Number: 19215
Homework Assignment No. 3
February 4, 2016
Due on Wednesday, February 10, 2016, before 11:00 PM
Reason: I would like to be able to upload the solution on Thursday morning to help you

Introduction to Geostatistics
PGE 337, Spring 2016
Unique Number: 19215
Homework Assignment No. 5
February 18, 2016
Due on Thursday, February 25, 2016, before 11:00 PM
Name: _
UT EID: _
Objectives:
a) To practice heterogeneity quantification
b) To practic

Homework 7
PGE 337/383.20
Analyzing Wireline Logs
The file CrawfordCreekdat.xls contains digitized results from a standard wireline logging
suite from an onshore U.S. reservoir.
1. For well #1 construct scatter plots of gamma ray reading vs. sonic travel