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Gold/Mining/Energy : Westfort Energy Ltd. (WT-T) -- Ignore unavailable to you. Want to Upgrade?

To: Tom Drolet who wrote (725)	7/3/1998 2:25:00 PM
From: AL Berta	Respond to of 1288

Tom: you use a choke on the well (oil or gas) to control the amount of flow. You don't want to produce any well wide open because there is almost a certainty that you will a.) collapse the formation, b.) draw in unwanted liquids/solids. A choke is chosen which will allow the maximum amount of production without causing any detrimental effects. A further consideration is "nominations". A gas plant can only handle so much gas. The operator of the plant determines who will produce to the plant and how much. Again, the choke is used as a sort of valve to regulate the flow. They do not however, use a choke during drilling. The weight of the drilling mud is carefully calculated so that it's density will neither run-away into the formation (too heavy) or allow significant amounts of well fluids (oil or gas and in some cases even water) into the well bore (too light). Regards, AL.