Assign_7-Solution - Engineer's Computation Pad NO. 937 811E...

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Unformatted text preview: Engineer's Computation Pad NO. 937 811E 3.? SEIDEIEDTLER® b 65: Read 9’“? flu, VILFW ta in mm mm Mm, ’ 0.1 o-q ' _0-L ’ 0.8 ' (40 V‘ mmamumwmwmnmmmnwwwnwmmmmewmawaH“‘MWmmm_.My.\\\(W,»\«\wmummem,WPKW h“ ‘. U ,. . , , (C) Wflvimmmfi : wok : R, M “1h It» :5: WDK (Zone gm” 7%01-5 8000’) Q 757‘? (of 0-75) g <0R 00 6k) ' W051 ~SaMaL) 7360— 74:80) > 35°47 (WU-as 2E (DKOO D19 E Wva <mvufi>ew , 7956ng g 50/0 (WO‘OS g (,3, Assignment # 7 PGE 424 MMS 1. An oil reservoir consists of a sequence of inter—bedded sands and shaly-sands. The capillary pressure curves (measured with crude oil and brine) for the sands and the shaly-sands are given in the attached figure. Assume that the water table is at 8000 feet. The density of the brine and the oil are 62 and 52 lb/ft3 respectively (no = 20p; uw = 1 cp). (a) Plot the water saturation as a function of depth (5 points). (b) The attached relative permeability curves were measured for the sand (assume all zones are water-wet). Plot the relative permeability to oil and water as a function of depth (5 points). (c) What is the ratio of water production rate to oil production rate (WOR) for each of the 3 zones? (5 points). (d) What would the oil and water production rates be (in bbl/day), if only the top sand was flowing (assume no crossflow between zones)? (5 points). All zones are open to flow. The wellbore radius is 4 inches and the drainage radius is 2000 ft. The reservoir pressure is 6000psi and the flowing bottom-hole pressure is 4500psi. Sand (7900 to 7850’), k = 200md Sand (8000’ to 7980’), k = 200 md 3m 3 51% u 3:3; N , i3 flfi Ag; 9 n ... m 2.,._§... + fimfifia $353! mun—.- — Efifiafifiéfi'fia‘ifiififiw Effiififi 1 5w ...
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Assign_7-Solution - Engineer's Computation Pad NO. 937 811E...

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