Replies to post #38976 on Hemi Energy Group Inc. (fka HMGP)

[Big Mur]

If you say so.

[zguy]

bdahl385, ahhh... but there is something that you may be overlooking :)

Yes, a high pressure well could be free flowing depending on the conditions, type of well, blah blah blah. BUT, from what I understand with certain high pressure wells, there are conditions which would make it NECESSARY to use a pump jack. One of the conditions which can make it necessary to use a pump jack on a well that could EASILY be free flowing is to control the pressure and the flowrate. I'm not an all out expert in this area but do have family and friends in the oil business and in talks with them, pump jacks can be used to control pressure and flow... they are not always used to actually pump the oil from the ground but sometimes to control it and hold it back.

To try to explain it very simply, a pump jack can be used as a "valve" so to speak. A pump jack with tight internal tolerances set at a certain rate thus may be being used as a "throttle valve" to actually hold back/reduce the flow/pressure seen at the discharge of the pump. With a positive displacement pump and certain types of other pumps you could put say 2,500 psi pressure of pure oil (example) on the inlet side and if you don't turn the pump on, there will be ZERO oil flow on the outlet side or if the internals leak by a little maybe just minimal seepage. BUT, if that pump is set to a stroke of or to pump 0.5 gph then, even with 2,500 psi as a driving force, it will only put out 0.5 gph. In this case, the pump is not being used as a pump but instead as a control mechanism.

So, based on what I have heard about how pump jacks can be used, it is possible any pump jack on the Collins well is NOT being used as a pump but rather as a means to control the extremely highly pressure of the oil/gas.

Hope this cleared up any confusion for ya but basically just wanted to let you know that your assumption of the well not having much pressure just because it has a pump jack installed may be completely backwards :) Maybe Big Mur can add a few words as well if he is familiar with using a pump jack in this type manner.

bdahl, you could be correct in your assumption, but, based on the latest PR of them still venting a minimum of 17BOE of natural gas, I'd say the more likely case is they are using the pump jack as a control mechanism.

[USC Cowboy]

bdahl...you are correct. The well will flow on its own if the reservoir pressure exceeds the theoretical hydraulic head.

Simply put, a well 1000 feet deep (producing horizon and source of the pressure) filled with water has a hydrostatic head pressure of 433 psi, and with any oil with a API gravity greater than 10 will create less head pressure (oil is lighter than water and therefore floats on top of water).

So it would appear that the well with 2000-2500 psi should flow very easily.

A pumping unit is required when the reservoir pressure is insuffient to overcome the pressure created by the column of fluid in the well.

USC