The operating philosophy is when the level in blowcase reach setting level, the dump sequence will start by means of using the discharge. this is the only reference i’ve ever heard of that treats this equipment: Improved Blowcase Operation and Design by William G. Elmer. see source below. The Liquid Removal Blowcase collects liquids at low pressure and uses a higher Robust skid design and commitment to service help bring operations online.
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If the compressor 90 is placed in position with both tanks empty, then by opening first inlet valve 50 one of the tanks may be filled with water to the desired level.
For further questions please contact our TIB customer service. The compressing desigh may be operated in an open circuit mode in which ambient water is allowed to flow into the compressor tanks and is then pumped out of the compressor tanks into the sea.
Thus, in multiple compressor tank configuration, it can be assured that when the intake process in one vessel is stopped, there will be another vessel for which the compression process has been stopped and is waiting to start the intake process. A single acting sequence is shown in FIG. Alternatively, all three tanks can be operated in a three-phase cycle. The harder I work, the luckier I seem RE: Second gas valve 80 on the side opposite of the second production conduit 78 is connected to gas conduit Second return valve 96 is open and the water is pumped into the second compressor tank 72thereby expelling the gas from second compressor tank 72 through open second production gas valve 82 and into the gas riser The invention relates to a submersible compressing station for a well producing gas and oil.
When the intake process on the other vessel is stopped, the compressor tanks are switched to start the intake process on the compressor tank that was performing the compression process and vice a versa.
A submersible compressing apparatus of claim 14 wherein said first and second compressor tanks are free of a device to prevent disturbance of the surface of the liquid contained in the first and second compressor tanks by operatikn gas flowing into and out of the first and second compressor tanks. By joining you are opting in to receive e-mail. Retrievable module and operating method suitable for a seabed processing system. A submersible compressing apparatus of claim 2 wherein said first and second compressor tanks are free of a device to prevent disturbance of the surface of the liquid contained in deaign first and second compressor tanks by the gas flowing into and out of the first and second compressor tanks.
Desgn is started. Close this window and log in. Gas valve 36 is then closed and first gas production valve 46 imprkved opened. The valves on all the conduits to the first compressor tank 38 are closed.
The second opening of the third compressor tank is connected to third tank conduit which is connected to third tank valve and third inlet valve A submersible compressing apparatus of claim 18 further comprising: A submersible compressing apparatus of claim 15 further comprising a first liquid level detector connected to said first compressor tank, and a second liquid level detector connected to said second compressor tank.
A first compressor tank unit 38 is provided with related conduits and valves as discussed with reference to FIG. A submersible compressing apparatus of claim 4 further comprising: The “trick” was to use a 2-inch pipe for both the vent and the power gas so that I could cycle the process with minimal friction losses.
First liquid conduit 48 is attached to a first inlet valve 50 and a first tank valve A submersible compressing apparatus of claim 15 further comprising: To ensure the compressed gas is actually discharged, the water valves, and conduits and the pump should be sized with consideration to the water depth and other relevant factors for the environment of use such that water entering the compressor tanks from the ocean at a greater rate than the pump can pump water out of the compressor tanks. Connected to the first opening of the third compressor tank is production gas conduit The differential pressure will be at a maximum when the water level is at a maximum and the differential pressure will be at a minimum when the water level is at a minimum.
The return conduit 92 is connected to first return valve 94 and second return valve 96 and to the output end of pump The rate at which a tank is flooded and the rate at which water is pumped from it are proportioned preferably such that a nearly continuous intake of gas to the compressor apparatus can be achieved.
Production Equipment Field Proven Reliability. As can be seen in this cycle first tank valve 52first gas valve 36second inlet valve 86 and second production gas valve 82 are closed, while first inlet valve 50first production gas valve 46second tank valve 88 and second gas valve 80 are open.
The bllwcase of mechanical gas compressors include that they often require more power than is practical to supply sub-sea, they have a complex construction, and they are complex to operate and difficult to maintain. A first liquid inlet conduit is connected to the first liquid inletand a first liquid exit conduit is connected to a first liquid exhaust opening Attached to the second opening 42 is first liquid conduit As I said, this sequence is taking long time.
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British Library Online Contents Thus, there has been a need for a reliable sub-sea gas compressor having a robust construction which is simple to maintain and operate. I do understand that blow case vessels are employed to dump the liquid by using high pressure gas normally from compressor discharge thereby removing the need of a pump.
Horizontal blowcases are inherently slow because of the volume improvedd have to pressurize before you get fluid flow.
In a preferred embodiment, there is a first compressor tank which has a first and second opening. This embodiment has a first compressor tank with a gas inlet opening and a gas exit openinga liquid inlet and a liquid exhaust opening A method for compressing gas from an underwater well comprising: Thus, when the differential pressure instruments senses a minimum level, the intake process is stopped and the compression process is started, and when the differential pressure instrument senses a maximum level, the compression process is stopped and the intake process is started.
Underwater station for pumping a well flow.