Essential Oil Extraction Knowledge You Must Know."

Essential Oil Extraction Knowledge You Must Know.

There are four oil production methods: self-injection oil production, gas lift oil production, rod pump oil production, and rodless pump oil production.

1. Self-injection oil production: Self-injection oil production means that the crude oil is lifted from the bottom of the well to the wellhead, and flows from the wellhead to the oil collection sRod Pumptation, all of which are accomplished by relying on the energy of the oil layer itself. The energy source of self-injection oil production mainly includes two aspects. It is the pressure of the oil flow at the bottom of the well. This bottom hole pressure comes from the oil layer pressure; it is the elastic expansion energy of the dissolved gas that enters the bottom of the well together with the crude oil. It is this energy that continuously lifts crude oil from the bottom of the well to the surface.

2. Gas lift oil production: Gas lift oil production is an artificial lifting method that uses a high-pressure compressor to inject high-pressure gas from the ground into the wellbore to lift the crude oil to the ground in order to enable the oil well to continue to produce oil after the oil well stops blowing out. Gas lift oil production is based on the principle of U-shaped pipe. From the annular space between the oil pipe and casing, high-pressure gas is continuously injected into the oil pipe through the gas lift valve installed on the oil pipe, so that the liquid in the oil pipe and the injected high-pressure gas Mixing reduces the density of the liquid column and reduces the back pressure of the liquid column on the bottom of the well, thereby forming a sufficient production pressure difference between the oil layer and the bottom of the well. The crude oil in the oil layer continuously flows into the bottom of the well and is lifted to the surface.

3. Rod pump oil production is currently the most widely used oil production method at home and abroad. Domestic rod pump oil production accounts for about 90% of the total number of artificial lift oil production wells. It has simple equipment, low investment, easy management, and strong adaptability. It can be applied from shallow wells of 200 to 300 meters to deep wells of 3,000 meters, with oil production ranging from a few tons per day to 100 to 200 tons per day. In terms of equipment manufacturing, from surface pumping units, downhole sucker rods to pumps, domestic products have long been serialized and completed in sets, which can meet the needs of oilfield production. The disadvantage of the oil pump is that the displacement is not large enough, and it cannot meet the requirements for oil wells with a daily output of more than 200 tons.

4. Beamless pumping units: There are many types of beamless pumping units. They are mainly used to reduce the weight of the pumping unit, expand the use range of the equipment and improve its technical and economic indicators. They are mostly characterized by long strokes and low strokes. , suitable for oil production in deep wells and heavy oil wells. Beamless pumping units are further divided into mechanical beamless pumping units and hydraulic beamless pumping units.

5. Rodless pump oil production: Rodless pump oil production mainly includes submersible electric centrifugal pump oil production and hydraulic piston pump oil production. The electric submersible centrifugal pump is powered by a ground power supply, through a transformer, control panel and cables, and transmits electric energy to an underground submersible motor, so that the submersible motor drives the multi-stage centrifugal pump to rotate and lift the crude oil to the surface.