The map shows the subsea depths (in feet) for the top of the reservoir unit in several wells drilled into the structure. The thickness of the reservoir is 150 ft. 1. Create a structure map for the top of the reservoir using 50 ft contour intervals. There is a fault associated with the structure. Do these in order: • Draw in the contour intervals and the fault first (note the major changes in the depths of the formation top). • Draw a simple cross-section of the reservoir along the X to X’ arbitrary line (denoted by dashed red line). • Your cross section should show top and base of the reservoir , OWC, and fault. Keep in mind scale. 1. Determine the oil-water contact depth: • Look for the thickness of the oil column in the deepest well provided which encounters oil (Well A). • Note that the oil-water contact is a flat surface (contour with an equal depth values). • Mark the OWC on the structure map.
The map shows the subsea depths (in feet) for the top of the reservoir unit in several wells drilled into the structure. The thickness of the reservoir is 150 ft. 1. Create a structure map for the top of the reservoir using 50 ft contour intervals. There is a fault associated with the structure. Do these in order: • Draw in the contour intervals and the fault first (note the major changes in the depths of the formation top). • Draw a simple cross-section of the reservoir along the X to X’ arbitrary line (denoted by dashed red line). • Your cross section should show top and base of the reservoir , OWC, and fault. Keep in mind scale. 1. Determine the oil-water contact depth: • Look for the thickness of the oil column in the deepest well provided which encounters oil (Well A). • Note that the oil-water contact is a flat surface (contour with an equal depth values). • Mark the OWC on the structure map.
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Question
The map shows the subsea depths (in feet) for the top of the reservoir unit in several wells drilled into the structure. The thickness of the reservoir is 150 ft.
1. Create a structure map for the top of the reservoir using 50 ft contour intervals. There is a fault associated with the structure. Do these in order:
• Draw in the contour intervals and the fault first (note the major changes in the depths of the formation top).
• Draw a simple cross-section of the reservoir along the X to X’ arbitrary line (denoted by dashed red line).
• Your cross section should show top and base of the reservoir , OWC, and fault. Keep in mind scale.
1. Determine the oil-water contact depth:
• Look for the thickness of the oil column in the deepest well provided which encounters oil (Well A).
• Note that the oil-water contact is a flat surface (contour with an equal depth values).
• Mark the OWC on the structure map.
Transcribed Image Text:Your Cross Section :
Well A
X'
Feet
s000
4000
2000
Transcribed Image Text:tree2 O
9948
7498
7543
7436
7386
7471
7463
7429O
9016
7468
7375
7339
7377
7330
X'
7303
7320
7313
7329
7371
7218
9813
1316
7320
7303
7268
7345
7393 O
7297
7302
73120
Well A
7443
7435
7418
7493
7543
7518
7618
7693
of
Feet
O OI Wel
O Dry Well
Well A
Reevo
Top
Oil
Satured
Water
Saturated
6000
4000
2000
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