New techniques applied in the development and

Session 3: Regional players and upstream strategies
New techniques applied in
the development and exploration of
Block 15, Oman
Vince Hamilton
Tethys Oil Locations
Tethys Oil 2007 Activity
France, drilling in Q3
Turkey, seismic acquisition
Spain, drilling in March
Morocco, license award
Oman, drilling in March
Block 15 Location Map
Block 15 Surrounding Concessions
56°E
57°E
10
"
So Jeb
ha e l
r g Kh
as un
i-
24°N
El Jariyal-1x Spud
1/07
Milhah-1
Target Natih,
Themama 1 BBOE
s pi
• JA-1 tested 40 deg oil
Dhahirah
(Block 43)
r ga
oha
Suneinah North (Block 31)
Indago
Medco
Energi
• 2 wells drilled in 1990s
S
udFah
32"
PTD 5,800m
• 2500 km old 2D seismic
peli
Suneinah-2X
ne
• 32” gas pipeline cross block
SHAMS
• Active drilling and appraisal
16
1
Ibri
Suneinah
(Block 9)
Occidental
12
"g
as
1 South Safah
JADWAL Haseel
Wadi
1
WADI Dhiya Rafash
1
Jalal N 1
LATHAM
1
Jalal E1 1
MADIQ
1
Jalal FE
Wadi Latham West-1
4"
ga
s
23°N
to north and east
as
Lekhwair BADR
East RAWDAH
85
23°N
Safah
SW
il
• Indago active with exploration
Jebel
Hammah
(Block 47)
Indago
Medco
Energi
1
SAFAH
12 3 2
4
8"
o
Ab U.A
.E
OM u Dh .
AN ab
i
wells by OXY to south and west
"g
23°30'N
BVS 5
Compressor
Shams (Block 44)
PTTEP
23°30'N
Jebel
Aswad
(Block 15)
10"oil Sabkha-1
Hebah-1
A'Qualah-1
Sharqi-1
SALMAH
2 AL BARAKAH 4
86
1
1 JAHLAH
SHADI5 2 DALEEL
LEKHWAIR
Wadi Aswad
6
Mazrouq
3
Anaima-1
7
Mezoon
N-1 oil
2
(Block
Daleel5)
3
8"
2
Petrogas
1
3
7
Wadi Aswad
1
4
4
Mezoon
Masdar-1 Bushra-1
Khamilah
(Block 27)
DHULAIMA
Naga-1
Le
k
Occidental
24 hw a
"
i
10 oil p r-Fah Wadi Zibra
NATIH WEST
"g
Masroor-1
as ipelin ud
81
pip e
1
elin
e
6" g NATIH
Al Aroos-1
as
FAHUD WEST
1
80
il
Maqhul
Firiyah-1
Muwaithil-2
"o
Haban
0
261
1
South-1
x
2
70
10
oi l "
ne
as li
32" g oh ar
to S
4
Hafar
(Block 30)
Indago
Anadarko
Nadir
2
22°30'N
AN
IA
OM RAB
A
DI
U
SA
0
10
20
Km
40
k
Le
6
55°30'E
56°E
Thumayd 1
56°30'E
Hamrat
Duru-3
1
1
Al Sahwa
2
Hafar
1
SHIBKAH
p
12 lann
" g ed
as
oi l
6"
Marad Ladah
MuqayMarad
ridah-1
4
Huraymah
A
d Mina
l F ah a
lSuqtan
57°E
Wood MacKenzie, 2004
22°30'N
• On trend with oil and gas fields
56°30'E
24°N
55°30'E
Block 15 Surrounding Fields
IHS Energy Map Aug 2006
March 1997
Block 15 Surrounding Wells
Wadi Rafash-2
2006
Oil Prod Shuaiba
Block 9 Cross Section
Block 9 Safah Field Horizontal Well
Block 9 Salmah Field
Block 9 Photos
6
6
Wadi Latham Facilities
Wadi Rafash Facilities
Block 44 Shams Field
PTTEP Shams Field 8 wells Dec 06
• Producing 50 mmcfd + 4,000 bcpd
rising to 100-120 mmcfd + 10,000bopd
• Gas, condensate and oil found
• Shams #4 29 mmscfd + 1,770 bcpd
6.7 mmscfd + 7,880 bopd
Multi-lateral Horizontal Well
Multi-lateral Horizontal Well
Multi-lateral Horizontal Well
Underbalanced Drilling Results: Saih Rawl Oil Field, Oman
SR190 Overall
SR190 Leg 5
SR190 Leg 4
SR190 Leg 3
SR190 Leg 2
SR190 Leg 1
SR185 Overall
SR185 Leg 3
SR185 Leg 2
SR185 Leg 1
SR183 Leg 4
SR183 Leg 3
SR183 Leg 2
SR183 Leg 1
SR182 Overall
SR182 Leg 3
SR182 Leg 2
SR182 Leg 1
SR180 Overall
SR180 Leg 5
SR180 Leg 4
SR180 Leg 3
SR176 Overall
SR176 Leg 3
SR173 Leg 3
SR173 Leg 2
SR173 Leg 1
SR164 Overall
SR164 Leg 3
SR164 Leg 2
SR164 Leg 1
SR153 Overall
SR153 Leg 5
SR153 Leg 4
SR153 Leg 3 (OB)
0.0
Conventional Well
Productivity
Incremental UBD
Productivity
0.5
1.0
1.5
2.0
2.5
3.0
Productivity Improvement Factor (PIF)
3.5
4.0
Underbalanced Drilling Results: Sajaa Gas Field, Sharjah
Sajaa UBD Campaign- Production Performance to Date
7
6
Productivity Improvement Factor (PIF) =
Production after UBD laterals / Production before UBD laterals
5
PIF
4
3
2
1
0
Sajaa 3
Sajaa 15
Sajaa 7
Sajaa 16
Sajaa 4
Sajaa 32
Sajaa 17
SPE 89644 Paper (Pruitt, et. al.)
Block 15 History
•
•
•
•
•
•
•
•
•
Originally part of Suneinah concession of Gulf-Quintana.
BP acquired first modern seismic data in 1985.
Arakis/Conquest shot 425 km seismic in 1991.
Jebel Aswad-1 well drilled in 1993/94. Tested (no flow) & suspended.
JA-1 well re-entered in 1995. Stimulated and flowed over 200 bbl of 40 deg API oil.
Wadi Saylah-1 drilled in 1997. Not tested.
Novus reprocessed seismic between 2000 – 2004.
GotOil Resources (Oman) Limited secured block on October 23, 2005.
Tethys Oil AB acquired GotOil (Oman) in May 2006.
Block 15 G & G Work Completed
•
Regional Structural Review Investigating Fracture Orientation
•
Source Rock Potential, Sub-Regional Facies Distribution &
Models
•
Analogue Fracture and Horizontal Completion Techniques
•
Justification for Appraisal Drilling of Natih and Shuaiba
Formations
•
Petrophysical Evaluation of the Jebel Aswad Prospect
•
Seismic Interpretation on 79 2D Seismic Lines in progress
•
Test reprocessing including PSDM and AVO
•
Regional Play and Migration Study
Block 15 Seismic Base Map and Well Locations
• 1389 square kilometers
• JA-1 and WS-1 drilled in 1990s
• JA-1 tested 40 deg oil
• 2500 km 2D seismic
Wadi Saylah-1
Jebel Aswad-1
Block 15 Seismic Reprocessing Results
Block 15 Prospects and Leads
Block 9 Analogue Field of Wadi Rafash
Wadi Rafash-1
Gulf 1981
Shuaiba Gas/Cond
Disc TD 3,170m
Wadi Rafash-2x proj.
Oxy 2006
Shuaiba Oil producing
from oil leg
TD 3,258m
Natih
Shuaiba
Jebel Aswad Interpretation 2006
Shuaiba
Bank
Block 15 Petrophysical Analysis of JA-1 Well
Jebel Aswad-1 Natih A/B OWC
Block 15 Jebel Aswad Structure
Jebel Aswad-1
1993, TD 11776’
Horizontal legs
Block 15 Cross Section Of Well Re-entry
JAS-1
Dalma Drilling Rig #3
• Subcontracted from PTTEP
• 2,000 horse power
• 6,000 meter depth capacity
Conclusions
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►
►
►
►
►
►
►
►
Regional geological understanding improves fracture and reservoir predictions
New seismic reprocessing algorythms enhance fault identification
Petrophysical analysis identifies pay zones
Drilling technology advances in three areas:
horizontal, multi-laterals and under-balanced
Horizontal wells cross multiple fracture zones increasing deliverability and
recovery
Multi-laterals allow production of more than one zone
Under-balanced drilling advantages:
No reservoir formation damage
Instantaneous production information
Improved productivity over normal wells
Old discovery wells e.g Wadi Rafash, Khamilah, Shams being succesfully
developed across region with these techniques
Re-entry of Jebel Aswad-1 to test commerciality with underbalanced horizontal
legs of Natih and Shuaiba