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Gold/Mining/Energy : KOB.TO - East Lost Hills & GSJB joint venture -- Ignore unavailable to you. Want to Upgrade?

To: Salt'n'Peppa who wrote (14571)	3/3/2001 9:49:05 PM
From: Tommaso	Read Replies (1) \| Respond to of 15703

"can someone tell me why the tubing size is being discussed, but nobody is paying attention to choke sizes?" I guess this requires a level of technical expertise that none of us really have.

To: Salt'n'Peppa who wrote (14571)	3/4/2001 12:30:54 AM
From: grayhairs	Respond to of 15703

Hi Salty. <<Surely, the limiting factor is the smallest aperture in the system, which is the choke, I think.>> The choke administers only the "finishing touches" to the total pressure drop from reservoir to pipeline, Salty. The tubing size impacts the flow regime (of multiphase systems) and frictional losses in the 3.5 mile flow from bottom hole to surface. "Sometimes" a larger tubing diameter can result in a higher flowing tubinghead pressure and flow rate. But, "sometimes not" (Eg. when flow regimes get altered dramatically) !! <gg> That's why completion engineers actually "design" their tubing string based upon expected flows. When test flows are substantially different from expectations, we sometimes see tubing string changeouts. Hope that helps, and have a good one. Later, grayhairs

To: Salt'n'Peppa who wrote (14571)	3/4/2001 4:59:10 AM
From: davo	Respond to of 15703

Salty, I'm not an engineer but I know a little about fluid dynamics and what you're after is Poiseuille's law which states that flow rate is proportional to the pressure gradient between the pipe ends and the 4th power of the radius: F = dPpir^4 / 8nl. where F=flow dP=pressure difference between the ends of the pipe pi=pi=3.141... r^4=radius to 4th power n=fluid viscosity l=length of pipe assumes laminar flow of the fluid which should occur over a 3.5 mile pipe even if turbulent at start. So even in the presence of a huge dP, a 3.5 mile pipe will effect flow significantly compared to say a 1 mile pipe; more importantly it only takes a small change in the radius to effect flow dramatically eg. 2" to 1.75" (4" diam to 3.5" diam)would drop flow 40%. I don't know the relative viscosities of oil/gas but I'm glad we have gas as getting oil to flow from that depth would seem to be a challenge for the laws of physics (even with the high temperature reducing the viscosity coefficient) I imagine the choke is just fine tuning which gives those topside a warm feeling they have some control. cheers, davo.

To: Salt'n'Peppa who wrote (14571)	3/4/2001 12:33:20 PM
From: dad	Respond to of 15703

{I looked at Bart's fabulous pictures and have to say that I can't tell much about the state of readiness. I'm sure there is a lot of tweaking, bolting, testing and checking going on as we speak.} One of my oil and gas buddies told me that once the coil tubing rig arrived and set up, it would most likely take 24 hours to be ready to perf (if everything went smoothly). Being ever the optimist, I guess I was hoping this would be the case. Damn, S&P, it was much easier on the nerves being there and seeing what was going on. (ggggggg) {I would respectfully suggest that even if a Sunday perf were to happen, you would still have at least 5 days in which to enjoy the flare test. In fact, the later the better.} Not interested. If I can't be there for the ''initial thrill'' then I'll be content to see what LHG and SJ provide us with. Hpoe they can find a way to provide sound (ggg)! {I seriously doubt that the stock market is playing any part in the moment of truth (perforating BKP #2). Berkley has demonstrated time and time again just how much they care about what happens to BKP stock...not!} My portfolio says otherwise :o), based on the upward movement, the last few days :o). No other reason for the stocks to have moved, is there? Hey, JMO, but I remember how the perfing and subsequent rumor re: BKP#1 affected the stocks. No reason to believe this time will be any different. That's why I'd like to see proactive news releases, not clarification of rumor. Man, am I antsy. If you were in town, I'd drop by for an early morning Corona (ggg) and have you explain to me why I should relax!! LOL. You ever come this far south anymore? ggg Cheers, draderd