P P O O S S T T E E R R S S POSTER 13 January 2008 216 DEVELOPING REMAINING OIL IN K1.1 SAND RESERVOIR WITH HORIZONTAL WELL IN BARAM FIELD, SARAWAK BASIN Nor Azrina M Amin, Noor Azmah Abdullah, Wahyudin Suwarlan, M Elzrey Ab Rahman, M Zamri Wahab PETRONAS Carigali Sdn Bhd Kuala Lumpur, Malaysia Baram field is located in Miri Sarawak Basin, East Malaysia. (Figure1).The field was discovered in 1963 and brought into production in 1969. In it’s nearly 40 year production period, optimal well placement is critical for drainage of the remaining reserves. The field was developed with 8 drilling platform, three surface facilities, and two compressor platforms. STOIIP was estimated at 1400 MMSTB with a EUR of 390 MMSTB from more than 170 wells. Some of the remaining reserves are left behind in the oil column <60 ft, reservoir thickness <20 ft, and dipping angle >4deg which was economically unattractive to be developed. This study is mainly focused on how to maximize oil recovery with respect to horizontal well in thin reservoir by using azimuthal geosteering technology. (Figure 2) BADP-E Rev 1 project successfully drilled a 2000 ft horizontal section in Baram-E111S1 well to drain the remaining oil from K1.1 reservoir in Block 3. The horizontal section was drilled at +3800 ft TVDSS within 1-5 feet below the ceiling and without exiting the reservoir. (Figure 3) Thereby allowing the well to attain maximum distance from oil-water contact and ensuring no attic oil was left behind. MI T BS BRUN BRUN MALAYS SIW TUKA W.LUTONG BOKO BETT BAKA BARON BARA FAIRLE BARA T E1 SARAW LUTO KUAL BARA oi ga MIR TO BSP BRUNEI MALAYSIA SIWA TUKAU W.LUTONG BOKOR BETTY BAKAU BARONIA BARAM FAIRLEY BARAM TO E1 SARAWA LUTONG KUALA BARAM oi ga -700 -7000 -7000 -7000 -7000 -7000 -7000 -7000 -7000 -7000 -6500 -6500 -6500 -6500 -6500 -6500 -6500 -6500 -6500 -6000 -7500 -7500 -7500 -7500 -7500 -8000 -8000 -8000 -8000 -8000 -6000 -6000 -8500 -8500 -8500 -9000 BADP-H BADP-G BAJT-F BADP-E BAJT-D BADP-C BADP-A BADP-B BA-004 BA-035 BA-043 BA-043 BA-043 BA-043 BA-043S1 BA-043S2 BA-043S2 BA-047S1 BA-048S1 BA-049S2 BA-049S2 BA-055 BA-059 BA-066S2 BA-097 BA-097 BA-098 BA-099 BA-099 BA-100 BA-101 BA-102 BA-102 BARAM-24 BARAM-33 BARAM-34 BARAM-36S1 BARAM-36S2 BARAM-37S1 BARAM-37S2 BARAM-38 BARAM-38S1 BARAM-39 BARAM-40S BARAM-41 BARAM-42 BARAM-7 BARAM-96 BARAM-96S1 BARAM-B109 BARAM-B35ST1 BARAM_SOUTH-B5 1504000 1508000 1512000 1516000 1520000 1524000 1528000 1532000 1536000 1540000 1544000 1548000 1552000 1556000 1560000 1504000 1508000 1512000 1516000 1520000 1524000 1528000 1532000 1536000 1540000 1544000 1548000 1552000 1556000 1560000 1688000 1692000 1696000 1700000 1704000 1708000 1712000 1688000 1692000 1696000 1700000 1704000 1708000 1712000 Baram-A BAJT-H Block 3 Figure 1: Baram Field Location.