6 Reservoir Engineering - Resources for my University of Trinidad … Reservoir... · Functions OF...
Transcript of 6 Reservoir Engineering - Resources for my University of Trinidad … Reservoir... · Functions OF...
![Page 1: 6 Reservoir Engineering - Resources for my University of Trinidad … Reservoir... · Functions OF RESERVOIR ENGINEERING To continuously monitor the reservoir and collect relevant](https://reader031.fdocuments.us/reader031/viewer/2022022119/5e4274ea53116749c8161697/html5/thumbnails/1.jpg)
INST212D
RESERVOIR ENGINEERING
![Page 2: 6 Reservoir Engineering - Resources for my University of Trinidad … Reservoir... · Functions OF RESERVOIR ENGINEERING To continuously monitor the reservoir and collect relevant](https://reader031.fdocuments.us/reader031/viewer/2022022119/5e4274ea53116749c8161697/html5/thumbnails/2.jpg)
Reservoir Engineering
Learning Objectives of Day 2:
� Basic concerns of Reservoir Engineering
� Scope of Reservoir engineering
� Basic concepts and operating variables
� Tolls of reservoir engineering
� Terminology for MBE calculations
![Page 3: 6 Reservoir Engineering - Resources for my University of Trinidad … Reservoir... · Functions OF RESERVOIR ENGINEERING To continuously monitor the reservoir and collect relevant](https://reader031.fdocuments.us/reader031/viewer/2022022119/5e4274ea53116749c8161697/html5/thumbnails/3.jpg)
DEFINITIONs OF
RESERVOIR ENGINEERING
Colhoun “The phase of engineering
which deals with the transfer of
fluids to, from or through the
reservoirs“.
![Page 4: 6 Reservoir Engineering - Resources for my University of Trinidad … Reservoir... · Functions OF RESERVOIR ENGINEERING To continuously monitor the reservoir and collect relevant](https://reader031.fdocuments.us/reader031/viewer/2022022119/5e4274ea53116749c8161697/html5/thumbnails/4.jpg)
Functions OF RESERVOIR
ENGINEERING
To continuously monitor the reservoir and collect relevant data and interpret it to be able to
1. Determine (present conditions))
2. Estimate ( future conditions) and
3. Control
the movement of fluids through the reservoir so that
![Page 5: 6 Reservoir Engineering - Resources for my University of Trinidad … Reservoir... · Functions OF RESERVOIR ENGINEERING To continuously monitor the reservoir and collect relevant](https://reader031.fdocuments.us/reader031/viewer/2022022119/5e4274ea53116749c8161697/html5/thumbnails/5.jpg)
Objectives of reservoir
engineering
a) To enhance ( increase recovery
factor) and
b) To accelerate ( increase production
rate)
the oil recovery
![Page 6: 6 Reservoir Engineering - Resources for my University of Trinidad … Reservoir... · Functions OF RESERVOIR ENGINEERING To continuously monitor the reservoir and collect relevant](https://reader031.fdocuments.us/reader031/viewer/2022022119/5e4274ea53116749c8161697/html5/thumbnails/6.jpg)
Types of reservoir energy
1. - Energy of compression of water and rock within the reservoir
2. - Energy of compression of oil within the reservoir
3. - Energy of compression of gas within the reservoir
4. - Energy of compression of water that are in adjacent or underlying aquifers
![Page 7: 6 Reservoir Engineering - Resources for my University of Trinidad … Reservoir... · Functions OF RESERVOIR ENGINEERING To continuously monitor the reservoir and collect relevant](https://reader031.fdocuments.us/reader031/viewer/2022022119/5e4274ea53116749c8161697/html5/thumbnails/7.jpg)
Types of reservoir energy
5. The gravitational energy that
causes oil and gas to segregate
within the reservoir
6. The surface energy manifesting
itself in capillary pores
![Page 8: 6 Reservoir Engineering - Resources for my University of Trinidad … Reservoir... · Functions OF RESERVOIR ENGINEERING To continuously monitor the reservoir and collect relevant](https://reader031.fdocuments.us/reader031/viewer/2022022119/5e4274ea53116749c8161697/html5/thumbnails/8.jpg)
Producing mechanismsbased on dominant reservoir energy being released
Common special
Depletion
drive
Gas cap
drive
imbibition compaction
Solution
Gas drive
Full Partial
Segregating Nonsegregating
Water drive Combination drive
Formation
driveI.Edge
II.Bottom
I.Edge
II.Bottom
gravity
![Page 9: 6 Reservoir Engineering - Resources for my University of Trinidad … Reservoir... · Functions OF RESERVOIR ENGINEERING To continuously monitor the reservoir and collect relevant](https://reader031.fdocuments.us/reader031/viewer/2022022119/5e4274ea53116749c8161697/html5/thumbnails/9.jpg)
Basic concerns of reservoir engineers
(i.e.Reservoir engineer has to
continuously answer:)
1. To calculate the volume of the initial
hydrocarbon present in the
reservoir ?
2. How much of the initial fluids have
been recovered ?
3. How much is left ?
![Page 10: 6 Reservoir Engineering - Resources for my University of Trinidad … Reservoir... · Functions OF RESERVOIR ENGINEERING To continuously monitor the reservoir and collect relevant](https://reader031.fdocuments.us/reader031/viewer/2022022119/5e4274ea53116749c8161697/html5/thumbnails/10.jpg)
Reservoir engineer has to
continuously answer:
4. How can we increase recovery
economically?
5. What data are needed to answer the
questions?
![Page 11: 6 Reservoir Engineering - Resources for my University of Trinidad … Reservoir... · Functions OF RESERVOIR ENGINEERING To continuously monitor the reservoir and collect relevant](https://reader031.fdocuments.us/reader031/viewer/2022022119/5e4274ea53116749c8161697/html5/thumbnails/11.jpg)
Reservoir engineer has to
continuously answer:
7. How can I measure the performance
of the reservoir?
8. How can I improve the
performance?
![Page 12: 6 Reservoir Engineering - Resources for my University of Trinidad … Reservoir... · Functions OF RESERVOIR ENGINEERING To continuously monitor the reservoir and collect relevant](https://reader031.fdocuments.us/reader031/viewer/2022022119/5e4274ea53116749c8161697/html5/thumbnails/12.jpg)
Scope of Reservoir engineering:
Reservoir engineer has to understand
(1) the nature of reservoir fluids
(2) the nature of reservoir rocks
` `(3)the nature and behavior of rock
fluid systems
![Page 13: 6 Reservoir Engineering - Resources for my University of Trinidad … Reservoir... · Functions OF RESERVOIR ENGINEERING To continuously monitor the reservoir and collect relevant](https://reader031.fdocuments.us/reader031/viewer/2022022119/5e4274ea53116749c8161697/html5/thumbnails/13.jpg)
Scope of Reservoir engineering:
In dealing with rock fluid systems we
have
basic concepts and
operating variables.
Basic concepts are: multiphase fluid
flow, capillary behavior and fluid
displacement are to name a few.
![Page 14: 6 Reservoir Engineering - Resources for my University of Trinidad … Reservoir... · Functions OF RESERVOIR ENGINEERING To continuously monitor the reservoir and collect relevant](https://reader031.fdocuments.us/reader031/viewer/2022022119/5e4274ea53116749c8161697/html5/thumbnails/14.jpg)
Scope of Reservoir engineering:
Operating variables are:
geometrical configuration of the rock-fluid system, i.e.
spacing of wells
boundary conditions of flow, i.e. rates at which oil is
produced or pressure allowed to change in the well
Types and characters of the reservoir fluids involved, i.e.
amount of gas space allowed to develop, the water
injected or relative viscosities of oil and water
The sequence of operations undertaken,.i.e. whether
pressure depletion is permitted before or after
injection of water
![Page 15: 6 Reservoir Engineering - Resources for my University of Trinidad … Reservoir... · Functions OF RESERVOIR ENGINEERING To continuously monitor the reservoir and collect relevant](https://reader031.fdocuments.us/reader031/viewer/2022022119/5e4274ea53116749c8161697/html5/thumbnails/15.jpg)
Tools of Reservoir engineering:
Under the influence of these
operating variables, answering the
previous questions requires material
balance calculations and
performance evaluations i.e
predictions and interpretations.
![Page 16: 6 Reservoir Engineering - Resources for my University of Trinidad … Reservoir... · Functions OF RESERVOIR ENGINEERING To continuously monitor the reservoir and collect relevant](https://reader031.fdocuments.us/reader031/viewer/2022022119/5e4274ea53116749c8161697/html5/thumbnails/16.jpg)
Tools of Reservoir engineering:
Among the predictive and
interpretation tools available are
simple MBE equation (zero
dimensional), frontal advance
equation (1D), numerical
simulators.