From: Wade Johnson Date: August 17, 2007 10:21:36 PM MDT To: Strain Subject: [strain-int] B072 Gold hill 2 install report. 8/17/07 0800 Onsite 0830 Run 3 section baler. Stops at 490 0900 Run 1 section baler. Stops at 490 1000 Run sand baler. Stops at 490 Pull Baler out of hole. Motor on Sand Line came loose. Shut down to repair 1121 Run Camera down again. 484-494. Seems "odd" Nothing stands out but one side of hole seems closer to lens. 1330 Repair sandline and MOB to B900. Tomorrow. Survey with inclinometer between 470-500 ft. Situation is very odd. We sent ddown at 5 5/8 over shot tool down the hole on Thursday with out any problem. This is a larger diameter than the balers. The only difference it that the 5'5/8 section was only 10" long. The rest of it was 4 1/2" and it was 4 feet long. the one section baler is 4 1/4" and 8 feet long. The problem seems to be some sort of deviation of the hole at the 485 level. This was also the level the drillers thought sand was coming from and was cemented up. We may need to MOB a rig back to the site. _______________________________________________ strain-int mailing list strain-int@pbo.unavco.org http://pbo.unavco.org/mailman/listinfo/strain-int From: Michael Gladwin Date: August 18, 2007 9:58:30 PM MDT To: Wade Johnson , Strain Subject: Re: [strain-int] B072 Gold hill 2 install report. 8/17/07 Wade, The sand slug was actually at 480-483'. From your comments that you got the camera down to 494 and saw no wall failure, it is probable that the cement up has not failed. The inclination at 400 was 88 degrees. (this seems the closest data). Precementing, there was a one inch breakout extending from 480 to 490. If there is any residual of the breakout, then short objects with sharp leading edges (like the bailer without a plug) fall into the footwall deviation and easily plow into the side of the borehole. There is a good chance that the lead edge of the bailer and the other short objects are digging into the wall - once this process starts, it rapidly becomes deep and will stop any edge object passing. This is probably more likely than a true deviation. The fact that you got the camera past 490 where other objects of arbitrary lengths jammed is significant. You may like to try a conical nose cone on something so that the lead edge is not one the wall at any stage. If you have anything with a leading centraliser that would be fine also. Even a bailer with nose cone if that is all you have available. Regards, Mick From: Wade Johnson Date: August 18, 2007 11:29:54 PM MDT To: Michael Gladwin Cc: Strain Subject: Re: [strain-int] B072 Gold hill 2 install report. 8/17/07 Hi Mick, The problem is tied to length not diameter or shape of the face. A 1 section baler goes down with out any problems, as did a 4 ft long overshot tool with a 5 5/8" diameter. We did get the Sand Baler down the hole today after about 5 tries, so it seemed to wear away part of the wall. After that we tried the one section baler. It went right down to bottom. After that we tried a 4 section dump baler with the trip on it. It stuck at 489 feet. After that we tried a 3 section baler. It also got stuck at 489. Took a bit of force to get it back out of the hole. We rant the inclinometer from 500-461 feet surveying every foot. As seen from the plot there appears to be some topography in this section of the hole. I am trying to get the inclination file for the ATV from Welenco. Wade From: Wade Johnson Date: August 26, 2007 10:28:48 PM MDT To: Strain Subject: [strain-int] B072 install report 8/25-26/07 8/25/07 After a bit of work we got a 3 section baler down the hole. Bottom at 542' 5". added 3.3 bags of portland using 2 runs of the baler. Some cement in water in hole. Some cement may have fell in hole when filling baler. Put US32 on test. CH0 had board US32RT3 in it and CH3 had US32RT0 in it. 8/26/07 sound hole at 530' 1" send in 1 section DB with cap on end. Sounded at 529' so we have 1 ft of mud on bottom of Hole. Send in 2 section DP with one 94lb bag of thick portland cement. Plan for tomorrow: install US32. _______________________________________________ strain-int mailing list strain-int@pbo.unavco.org http://pbo.unavco.org/mailman/listinfo/strain-int From: Wade Johnson Date: August 27, 2007 10:41:00 PM MDT To: Strain Subject: [strain-int] B072 Gold Hill 2 Install report 8/27/07 0820 On site. Sound Hole. 525' 2" Send 1 section DB with cap on it. 524' 9" 5" of mud in hole. 0848 Shut down GTSM21 to swap US27OS with US45OS. US27OS was put back into US27's data logger. Swap US32RT3 and US32RT0 0853 Note Tube numbers Tube RT 0 53.3 53.7 1 54.5 54.7 2 54.4 54.4 3 54.1 54.4 1020 Shut down GTSM21 1035 Compass test X: 1.815, 2.435 Y: 1.882, 2.445 1057 Start Mixing grout 1100 Last grout and 12 gal of water. Mixed 7 bags 1102 Added .2 Gal 1110 Fill DB 1114 send DB down hole 1118 On bottom 1123 out of grout 1125 DB out 1127 GTSM in hole 1142 On bottom 1145 Gtsm turned on Renamed to B072 1201 Called good 1224 DH: 3.588 V X: 1.989 Y: 2.418 1301 Pull Data 1309 Leave site. Tomorrow. Install Seismometer after 1200 Cement up hole at 1400 Bury cable and pour pad. _______________________________________________ strain-int mailing list strain-int@pbo.unavco.org http://pbo.unavco.org/mailman/listinfo/strain-int Begin forwarded message: From: Wade Johnson Date: August 27, 2007 10:41:00 PM MDT To: Strain Subject: [strain-int] B072 Gold Hill 2 Install report 8/27/07 0820 On site. Sound Hole. 525' 2" Send 1 section DB with cap on it. 524' 9" 5" of mud in hole. 0848 Shut down GTSM21 to swap US27OS with US45OS. US27OS was put back into US27's data logger. Swap US32RT3 and US32RT0 0853 Note Tube numbers Tube RT 0 53.3 53.7 1 54.5 54.7 2 54.4 54.4 3 54.1 54.4 1020 Shut down GTSM21 1035 Compass test X: 1.815, 2.435 Y: 1.882, 2.445 1057 Start Mixing grout 1100 Last grout and 12 gal of water. Mixed 7 bags 1102 Added .2 Gal 1110 Fill DB 1114 send DB down hole 1118 On bottom 1123 out of grout 1125 DB out 1127 GTSM in hole 1142 On bottom 1145 Gtsm turned on Renamed to B072 1201 Called good 1224 DH: 3.588 V X: 1.989 Y: 2.418 1301 Pull Data 1309 Leave site. Tomorrow. Install Seismometer after 1200 Cement up hole at 1400 Bury cable and pour pad. _______________________________________________ strain-int mailing list strain-int@pbo.unavco.org http://pbo.unavco.org/mailman/listinfo/strain-int From: Wade Johnson Date: August 28, 2007 10:50:12 PM MDT To: Strain Subject: [strain-int] B072 Gold Hill2 install report 8/28/07 09:30 Arrive on site US32RT0 stuck at G0 and RT 480000000 - May have left off or added a 0. Reset board and force to G3 adjust RT number. Board returns to normal. 10:00 Weld solar mounts. 11:15 Dig Pit 1130 Test seismometer #55 (UNAVCO 21630) V: 2.48 kOhms H1: 2.50 kOhm H2: 2.51 kOhm 12:00 Lower seismometer 1240 On bottom- 5' 1245 Trip in pipe. Bottom of hole at 512.5' Seismometer at 507' 1445 Pump 5 yards of cement 1545 Done cementing 1615 Shut down GTSM to burry cable 1730 GTSM back online Leave site Install electronics and power. Thursday set up radio link to Gold Hill 1 _______________________________________________ strain-int mailing list strain-int@pbo.unavco.org http://pbo.unavco.org/mailman/listinfo/strain-int > From: Wade Johnson Date: August 29, 2007 11:25:14 PM MDT To: Strain Subject: [strain-int] B072 GoldHill 2 install report 8/29/07 0800 Onsite. 0936 Shut down GTSM21 to set up enclosure 1140 GTSM21 on CH0 went to G2. After forcing to G3 and manually setting RT then reseting card CH0 looked normal 1200 Hook up Solar power. 1652 Off site. Solar online. Tomorrow: Hook up Radios, program equipment. Hook up rain gauge. _______________________________________________ strain-int mailing list strain-int@pbo.unavco.org http://pbo.unavco.org/mailman/listinfo/strain-int