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GeneralRe: MQOTD PinmvpOriginalGriff3-Feb-13 23:57 
GeneralRe: MQOTD PinmemberJohnny J.4-Feb-13 0:01 
GeneralRe: MQOTD PinmvpOriginalGriff4-Feb-13 0:09 
GeneralRe: MQOTD PinmemberNagy Vilmos3-Feb-13 22:12 
GeneralRe: MQOTD PinmemberDalek Dave3-Feb-13 22:14 
GeneralRe: MQOTD Pinmembers_mon3-Feb-13 23:23 
GeneralRe: MQOTD PinmemberJohnny J.3-Feb-13 23:44 
GeneralRe: MQOTD PinmemberRage4-Feb-13 1:02 
GeneralRe: MQOTD Pinmemberdjj554-Feb-13 2:01 
Generalimportant Win7/64 resource from MS if you are having problems un-installing or upgrading programs PinmemberBillWoodruff3-Feb-13 18:20 
GeneralRe: important Win7/64 resource from MS if you are having problems un-installing or upgrading programs Pinmembermegaadam3-Feb-13 21:27 
GeneralRe: important Win7/64 resource from MS if you are having problems un-installing or upgrading programs PinmemberBillWoodruff3-Feb-13 23:01 
GeneralComputers are overrated, and small efficient motors too PinsitebuilderAndy Brummer3-Feb-13 17:55 
GeneralRe: Computers are overrated, and small efficient motors too PinsubeditorWalt Fair, Jr.3-Feb-13 18:31 
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 Pinmemberlewax003-Feb-13 18:31 
GeneralRe: Computers are overrated, and small efficient motors too PinmemberMark_Wallace3-Feb-13 20:28 
GeneralRe: Computers are overrated, and small efficient motors too PinmentorPaul Watt3-Feb-13 20:43 
GeneralWeeeeeee. Crunch. Ahhhrgh. HELP! Boooooooiiiinnnggggg! Pinmember_Maxxx_3-Feb-13 17:39 
GeneralRe: Weeeeeee. Crunch. Ahhhrgh. HELP! Boooooooiiiinnnggggg! PinmvpOriginalGriff3-Feb-13 21:58 
GeneralVS2012 Find in files Pinmember_Josh_3-Feb-13 16:55 
GeneralRe: VS2012 Find in files Pinmember_Maxxx_3-Feb-13 17:34 
GeneralRe: VS2012 Find in files Pinmember_Josh_3-Feb-13 20:47 
GeneralRe: VS2012 Find in files Pinmembergninneh3-Feb-13 21:08 
GeneralRe: VS2012 Find in files Pinmember_Josh_3-Feb-13 23:04 
RantDouble clicking in Excel PinmemberPaulowniaK3-Feb-13 15:07 
QuestionRe: Double clicking in Excel PinmemberBrisingr Aerowing3-Feb-13 15:10 
AnswerRe: Double clicking in Excel PinmemberPaulowniaK3-Feb-13 15:12 
AnswerRe: Double clicking in Excel PinmemberLiam O'Hagan3-Feb-13 15:55 
GeneralRe: Double clicking in Excel PinmemberPaulowniaK3-Feb-13 16:01 
GeneralRe: Double clicking in Excel PinmemberMark_Wallace3-Feb-13 20:30 
GeneralRe: Double clicking in Excel PinmemberTheOtherCPian3-Feb-13 21:46 
RantRANT: stupid firewall software that won't tell you what it's really doing!! PinmemberMatthew Faithfull3-Feb-13 15:05 
GeneralRe: RANT: stupid firewall software that won't tell you what it's really doing!! PinmemberMark_Wallace3-Feb-13 20:33 
GeneralUm, SPAM? Pinmemberdb7uk3-Feb-13 11:37 
GeneralRe: Um, SPAM? PinmemberH.Brydon3-Feb-13 11:58 
GeneralRe: Um, SPAM? Pinmemberdb7uk3-Feb-13 12:25 
GeneralRe: Um, SPAM? PinmemberBrisingr Aerowing3-Feb-13 11:59 
GeneralRe: Um, SPAM? PinmemberMike Meinz3-Feb-13 14:35 
GeneralRe: Um, SPAM? PinmemberAbhishek Pant4-Feb-13 15:22 
GeneralRe: Um, SPAM? PinmemberMike Meinz4-Feb-13 15:28 
GeneralRe: Um, SPAM? PinmemberMark_Wallace3-Feb-13 20:34 
GeneralRe: Um, SPAM? Pinmemberdb7uk3-Feb-13 22:12 
GeneralRe: Um, SPAM? PinmemberMark_Wallace3-Feb-13 22:19 
GeneralI am thinking of... PinmemberBrisingr Aerowing3-Feb-13 10:59 
AnswerRe: I am thinking of... PinmemberH.Brydon3-Feb-13 12:01 
GeneralRe: I am thinking of... PinmvpEddy Vluggen3-Feb-13 13:22 
GeneralRe: I am thinking of... PinmemberMark_Wallace3-Feb-13 20:37 
GeneralRe: I am thinking of... PinmemberMatthew Faithfull3-Feb-13 12:19 
GeneralRe: I am thinking of... Pinmemberbryce3-Feb-13 13:01 
Generaldelphi Pinmemberantardj3-Feb-13 10:52 

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