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<br /> QUINTANA PETROLEUM CORPORATION SHEET D
<br /> DRILLING RECORD PAGE NO. 1
<br /> PIACENTINEAFE #56603
<br /> LEASE WELL NO. 1-27 FIELD
<br /> " OPERATIONS, o sv
<br /> Location: 990' E b 3490' N of SW corner
<br /> of projected Section 27, T3N-R5E
<br /> San Joaquin County, California
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<br /> 7/4/86 354' Day 1, Drld 3021, drlg, clay and ad, MW 9.3, via 50. Survey: @ 292'.
<br /> MIRU Gary Drilling Rig D-14. SPUD at 2401 hra 7/4/86. Drld and surveyed
<br /> i, to 292'. POOH for plugged bit, drld to 354', NDA.
<br /> DC: $9295 CTD: $9295
<br /> 7/5/86 628' Day 2. Drld 274', testing BOPE, ad and clay, MW 9.2, via 38. Survey:
<br /> V @ 628'. Drld to 628', made wiper trip to surface, circ and cond mud.
<br /> POOH. Ran 16 ,jts 8 5/8" cog and set at 627'. Cmt w/BJ/Titan using 160 sx
<br /> clgea "G" cmt + 8% gel + 3% CaCl2and 100 sx class "G" cmt + 3% CaCl -
<br /> Total slurryvol 2
<br /> volume 461 cu ft (75X excess), PD at 1348 hrs 7/4/86 w/1000 psi.
<br /> - Release press and float held OK. Had 100 u f
<br /> . . c t clean
<br /> .e,�... ,., cmt returns (22X
<br /> excess). Ran 4 centralizers: 1 - 10' above shoe, 1 on each of next 3 collars.
<br /> WOC, weld on ca head and test NU OP
<br /> B BOPE and test, 'test witnessed es ed by D.U.G.
<br /> representative.
<br /> DC: $30,409 CTD: $39,704
<br /> 7/6/86 3102' Day 3. Drld 2475', circ for TFNB, ad and clay, MW 9.3, via 37, WL 6.2.
<br /> Surveys: 3/4° @ 1140', 1899' and 2998'. Drl out insert, cmt and shoe.
<br /> Drld and surveyed to 3102', now prep to TFNB.
<br /> DC: $9957 CTD: $49,661
<br /> 7/7/86 4294' Day 4. Drld 1192', drlg, ad and clay, MW 9.6, via 37, WL 6.4. Survey:
<br /> l!° @ 3665'. TRNB, drld to 36651, wipe hole to 2840', drld to 4294', TFNB.
<br /> DC: $7788 CTD: $57,449
<br /> Formation tope: lleadhorae at 3590'
<br /> Domengine at 3793'
<br /> 7/8/86 4900' Day 5. Drld 606', TIH, ad and clay, MW 9.5, via 35, WL 7.0. Survey:
<br /> V @ 49001. Drl to 4900'. Circ, wiper trip, strap DP. TIH. Circ and
<br /> cond for logs, TOOH, log, TIH.
<br /> DC: $15,190 CTU: $72,639
<br /> 7/9/86 TD 4900' Day 6. Drld 0', running cog, MW 9.4, via 35. WL 7.0. TIH, circ and cond,
<br /> WO cog. LD DP and DC's, now running 5V cog.
<br /> DC: $24,710 CTD: $97,349
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<br /> 7/10/86 TD 4900' Day 7. Ran 124 jta 5Y' cog, set at 4900.001. Circ 3/4 hr, cmt w/BJ Titan
<br /> I using 300 gal weighted'mud sweep followed by 150 sx Class G containing
<br /> 10% salt, 0.75% CD-31, 0.2% FP-8. Displace w/115.6 bbla fresh wtr. Total
<br /> slurry volume - 174 cu ft, weight 16.0 ppg, yield 1.16 cu ft/sk. Bump plug
<br /> f si
<br /> /1250
<br /> w . Release
<br /> P press, float held OK. PD at 1030 hrs 7/9/86 PDT.
<br /> �.w Good returns throughout. Set slips, ND BOPE, install tbg head, clean mud
<br /> tanks. Rig released at 2300 hrs 7/9/86. Now WO completion.
<br /> DC: $38,456 CTD: $135,805
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<br /> 7/18/86 4858' RU Welex and run CBL. LTD at 48241. DTD at 48581. Log 4822'-39401.
<br /> Excellent bond. Cmt top at 4175'. RD Welex.
<br /> 7/19/86 4858' RU Schlumberger. Run TDT log 4814'-38001. LTD at 4822'. Run CET log
<br /> s from 4816'-3950'. LTD at 4822'. No channeling indicated by CET. RD Schlum.
<br /> 7/20/86 4858' Shut down - will MI rig Monday.
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<br /> "3 7/21/86 4858' Shut down - will MI rig today.
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