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GeneralRe: MQOTD Pin
OriginalGriff4-Feb-13 0:57
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GeneralRe: MQOTD Pin
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GeneralRe: MQOTD Pin
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GeneralRe: MQOTD Pin
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GeneralRe: MQOTD Pin
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GeneralRe: MQOTD Pin
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djj554-Feb-13 3:01
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Generalimportant Win7/64 resource from MS if you are having problems un-installing or upgrading programs Pin
BillWoodruff3-Feb-13 19:20
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GeneralRe: important Win7/64 resource from MS if you are having problems un-installing or upgrading programs Pin
megaadam3-Feb-13 22:27
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GeneralRe: important Win7/64 resource from MS if you are having problems un-installing or upgrading programs Pin
BillWoodruff4-Feb-13 0:01
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GeneralComputers are overrated, and small efficient motors too Pin
Andy Brummer3-Feb-13 18:55
sitebuilderAndy Brummer3-Feb-13 18:55 
GeneralRe: Computers are overrated, and small efficient motors too Pin
Walt Fair, Jr.3-Feb-13 19:31
subeditorWalt Fair, Jr.3-Feb-13 19:31 
I've seen one of those systems in east Texas many years ago. I find it hard to believe that with all the friction involved they could be all that efficient. Most oil field pumping units are driven by relatively small motors, since when properly adjusted the counter weights pretty much balance the rod load for each individual well on modern systems. (Part of my research involves numerically modeling oil pumping systems.)

On the other hand, the wells in those days were relatively shallow. I doubt they would work on most wells these day, aside from being a mile or more deep, you'd also have to make sure that safety regulations are met and that cos, etc. don't mess with them.

Still, it's interesting to see how much ingenuity was involved in figuring out how to solve problems in eras gone by. I saw a primitive system in Indonesia where they lowered a cable into a well and pulled it up by hand to get the (thick) oil that stuck to it. Hardly efficient but labor was cheap and the market for the oil was for local cooking, etc. Ingenious technique with limited resources when you think about it.
CQ de W5ALT

Walt Fair, Jr., P. E.
Comport Computing
Specializing in Technical Engineering Software


GeneralRe: Computers are overrated, and small efficient motors too Pin
lewax003-Feb-13 19:31
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GeneralRe: Computers are overrated, and small efficient motors too Pin
Mark_Wallace3-Feb-13 21:28
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GeneralRe: Computers are overrated, and small efficient motors too Pin
Paul Watt3-Feb-13 21:43
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GeneralWeeeeeee. Crunch. Ahhhrgh. HELP! Boooooooiiiinnnggggg! Pin
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GeneralVS2012 Find in files Pin
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GeneralRe: VS2012 Find in files Pin
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RantDouble clicking in Excel Pin
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QuestionRe: Double clicking in Excel Pin
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AnswerRe: Double clicking in Excel Pin
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RantRANT: stupid firewall software that won't tell you what it's really doing!! Pin
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GeneralRe: RANT: stupid firewall software that won't tell you what it's really doing!! Pin
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GeneralUm, SPAM? Pin
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GeneralRe: Um, SPAM? Pin
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GeneralRe: Um, SPAM? Pin
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GeneralRe: Um, SPAM? Pin
Mark_Wallace3-Feb-13 21:34
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GeneralRe: Um, SPAM? Pin
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GeneralRe: Um, SPAM? Pin
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GeneralI am thinking of... Pin
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Generaldelphi Pin
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