The advantages and disadvantages of screw pump production system

screw pump production system, the advantages of screw pump oil production of oil well using progressing cavity pump faults

liaohe oilfield in September # and 26-006 30 # with screw pump production system and beam type pumping piston pump production system comparison test, the oil production increase 6. 4 times, pump efficiency is 76% ~ 87%. Although the ground hydraulic driving tests showed that the single screw pump production system in our country is not convenient to use the north cold climate conditions. But the advantages of oil well using progressing cavity pump still has high economic benefit of oil production, is a very worthy of popularization and application of type pumping equipment.

as early as the early 1970 s abroad successfully developed single screw pump oil production system, Russia, the United States, Canada, France and other countries has been widely adopted. In this field in our country began to start since the 1990 s, driven by the ground single oil well using progressing cavity pump, the most still rely on imports. And the high viscosity of crude oil alone accounted for more than 1/6 of the total reserves, can be in shallow Wells, deep in the oil field, low yield fields, remote oilfield and ChouYouTian all replace beam sucker rod pump system. Single electric submersible screw pump is a development trend of rodless drilling. With a single oil well using progressing cavity pump, therefore, there is a great space for development and application value of the field, can produce good economic benefit.

screw pump production system because it is in the process of transmission medium is not affected by stirring, low ripple, etc, are widely used in conveying milk, beer and some emulsion etc. Also it is because of this characteristic, also widely used in wastewater treatment system of oil-water separation devices, make the oil in the wastewater emulsification not easily, was much easier and more clean, more plunger pump is superior to the current selection. It must be noted that used in food, medicine and other fields, the pump must be in conformity with strict rules about health. Its rubber stator must choose non-toxic, tasteless, and the medium contact parts should not be corrosion, the internal space of the pump flow should be smooth, the need to remove or rinse flow and drifting, ensure that no residue and bacteria breeding in the pump. However, even with the rubber stator non-toxic, tasteless, the chip will inevitably mixed with transmission medium, the food and drug uniform quality, look from the requirements of environmental protection is not suitable.

these areas at present some countries have adopted pneumatic diaphragm pump or graco pneumatic diaphragm water pump instead of single screw pump, though their price is higher, but more to a food and drug safety.

in addition, the screw pump production system can realize liquid, gas, and solid multiphase mixed lose, this is most of the other pump can not be achieved, it is of great significance. It can also be used as additive of various chemical additives of metering pump, high measuring accuracy, reliable can reach 98%. Screw pump production system compared with other types pumps, self-priming ability, usually for medium as water suction height can be up to 6 m, for some medium under the certain rotate speed of up to 8. 5 m, it also widened the field to use it.

screw pump production system used in ship late, application is more processing bilge oil system of oil-water separation devices ( Traffic is usually less than lOrri3/1 I, discharge pressure of 0. Around 2 mpa, speed is usually around 200 r/min) , dirt in the sewage treatment plant and waste incinerator system for pump, in waste incineration system mostly adopts micro single screw pump ( Governs the downhill for 50 - 60 r/min, the flow rate of 1 l/min, the discharge pressure of 0. Around 2 mpa, on the suction height about 2 m) These pumps because of the low speed, a long life. In addition, there were used as slag pumps, and bilge pumps, sea water pump, wash deck cargo oil pump and pump, etc. , are most often used for low pressure small flow rate condition.

manufacturing of oil well using progressing cavity pump system is relatively easy, and the price is low, widely applicable fields, so it's competitive ability. The disadvantage of oil well using progressing cavity pump is the service life of the screw pump for material such as rubber stator wasn't long enough.

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