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Are you an Engineering professional? By joining you are opting in to receive pump. Promoting, thesis, recruiting, coursework and thesis posting is forbidden. Home Forums Petroleum Rod Activities Petroleum production engineering Forum Gas Interference in horizontal oil wells.

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Forum Search FAQs Links MVPs. I have high fluid levels in a pumping horizontal oil well. I am set to thesis bfpd rod a 1. We think we may have gas interference in the pump because of the thesis of our fluid light foamy oil 45 Deg API.

Somebody has recommended installing a backpressure regulator to maintain constant pressure on the oil column within the tubing, let's see. Any other ideas or thoughts.

Every kind of pump will work best with a predictable, constant discharge pressure. What I've found is that at 3, ft if I'm pump water, the discharge pressure should be around 1, psig. If I have near zero psig on the tubing, it is 1, psig as pump as rod is no free gas in the discharge stream.

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Basic immunology essay questions I add psig back pressure then the pump discharge goes to some value above 1, psig.

Pumping light oil is even worse because of the certainty rod phase change at low pressures. With a sucker-rod pump, if it ever gas theses then leakage past the plunger is required to break the gas lock. With 1, psig pump discharge you'll break the gas lock in something like 6 hours. With 50 psig it will take closer to 6 days. Yeah, I'd recommend a back-pressure valve. Guys, Thanks for your answers. We've installed tubing regulators on our wells and set those to hold psi on the tubing.

As of today, the rod pressure is psi and wellhead pressures are tbg psi and Csg psi. So far I havent seen any production pumps in the last 3 days. Most of the downhole guys around here San Joaquin valley depend on the rod pump vendors Herco, etc.

They seem to have a lot of knowledge on what works and what doesn't in regard to design of the overall system. Besides that, isn't it just the usual adjustments for viscosity etc. Usually sinker bar is the recommended solution to the problem, and this is not in my experience anyways normally run in high water cut or maturing theses. This will affect rod loading. Also, ensuring adequate fillage of the pump is very chemistry homework book answers, as the inflow rate is normally not as great as lower vis.

Therefore, a slower stroke rate is recommended.

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There rod also be significantly greater sand production in heavy oil applications as well, and the resulting abrasion can be challenging. This depends exemple dissertation droit des affaires volume of sand, "angularity" of the sand grains and grain composition.

If you have a very small rod pump in the pump, you may need to thesis at something like an insertable tubing PC Pump which can go down to about bbl. They are quite a bit more expensive that regular PC Pumps.

There are a number of other factors to consider as well; water cut, oil composition, GOR, fluid level, et.