Gas station.
On the surface, this looks like just a gas station, but there is an automated factory behind the gas station, which extracts the oil from the ground, processes it, and then transports it directly to this gas station for drivers who come and go to refuel.
Originally, the gas station had an encryption device and an automatic cashier device, but they were destroyed by the robbers and the oil lines were opened. They used the fuel to supply their own cars.
Petroleum is mainly hydrocarbons. It is composed of a mixture of different hydrocarbons. The chemical elements that make up petroleum are mainly carbon and hydrogen, and the rest are sulfur, nitrogen, oxygen and trace metal elements (nickel, vanadium, iron, antimony, etc.). Hydrocarbons formed by the combination of carbon and hydrogen constitute the main component of petroleum, accounting for about 95% to 99%. Various hydrocarbons are divided according to their structures: alkanes, cycloalkanes, and aromatic hydrocarbons. Generally, natural petroleum does not contain olefins, but secondary processing products often contain varying amounts of olefins and alkynes. Compounds containing sulfur, oxygen, and nitrogen are harmful to petroleum products and should be removed as much as possible during petroleum processing. In addition, trace amounts of chlorine, iodine, arsenic, phosphorus, nickel, vanadium, iron, potassium and other elements contained in petroleum also exist in the form of compounds. Although its content is small and has little impact on petroleum products, arsenic in it will poison the catalyst for catalytic reforming, and iron, nickel, and vanadium will poison the catalyst for catalytic cracking. Therefore, when carrying out such processing of petroleum, the raw materials must be selected or pretreated.
Qi Yanliang asked: "Do you know where oil comes from? In addition to using oil, can we use other fuels to drive vehicles?"
"These cars are also hybrid. In addition to oil, we estimate that the only thing we can use is electricity, but we have not found a power supply device or a place to replace the battery nearby."
Research shows that it takes at least 2 million years to generate oil, and among the oil reservoirs discovered today, the oldest is 500 million years old. In the long history of the earth's continuous evolution, there were some "special" periods, such as the Paleozoic and Mesozoic eras. After a large number of plants and animals died, the organic matter that made up their bodies continued to decompose and mix with sediment or carbonate sediments and other substances. Make up the sedimentary layer. As sediments continue to accumulate and thicken, the temperature and pressure rise. As this process continues, the sedimentary layers turn into sedimentary rocks, and then sedimentary basins are formed, which provides the basic geological environment for the generation of oil. Most geologists believe that oil, like coal and natural gas, was formed gradually over a long period of compression and heating of ancient organic matter. According to this theory, oil is formed by the transformation of the corpses of prehistoric marine animals and algae. The organic matter was mixed with silt over a long period of geological time and was buried under thick sedimentary rocks. Under the high temperature and pressure underground, they gradually transform, first forming waxy oil shale, and later degenerating into liquid and gaseous hydrocarbons. Because these hydrocarbons are lighter than nearby rocks, they seep upward into nearby rock formations until they penetrate into the tight, impenetrable, and itself porous rock formations above. The oil gathered together in this way forms an oil field.
Oil is obtained from oil fields by drilling and pumping.
At this gas station, oil is obtained using automated drilling and transportation devices. Raw oil is obtained and then refined and processed. The oil pumping method is mainly deep well pump oil production, which can be divided into two categories: rod pump oil production and rodless pump oil production.
Rod pump oil production: Rod pump oil production refers to the artificial lift oil production method in which the oil pumping unit lowers the oil sucker rod into the well and drives the piston of the downhole oil pump to reciprocate up and down to pump the oil to the ground. This method uses the most.
Rodless pump oil production: Rodless pump oil production does not use sucker rods to transmit power, but uses electric motors, high-pressure liquids, etc. to drive downhole pumps, that is, special oil pumps such as electric submersible centrifugal pumps, screw pumps, jet pumps, hydraulic pumps, etc. Piston pumps extract oil. They are called electric submersible pump oil production, screw pump oil production, jet pump oil production, and hydraulic piston pump oil production.
The motor is lowered into the oil well several hundred meters or even thousands of meters away, and a special cable is lowered from the wellhead and connected to the submersible motor. When the cable is powered, the submersible motor rotates to drive the multi-stage impeller of the submersible centrifugal pump to rotate. Each stage of impeller adds a certain amount of energy to the oil at the bottom of the well, just like a pump adding pressure to water. When the oil rotates through the multi-stage impeller, the pressure will rise very high, so the oil will be lifted from the bottom of the well to the wellhead. The submersible motor directly drives the submersible centrifugal pump, eliminating unnecessary power consumption. Therefore, its power is much higher than that of the pumping unit, which can save electricity. It can be used in very deep, high-production wells and also facilitates the automation of oilfield production. In addition to electric submersible pumps, oil methods include screw pump oil production, jet pump oil production, hydraulic piston pump oil production and other artificial lift oil production methods.
The robbers took over the gas station and set up an electric fence nearby.
The car is almost out of gas.
How to get in?
If you force your way in, you won't be able to defeat them. They have guns.
Take a detour, there is a wild snake over there.
I thought about it and wondered if I could dig a hole from below with a drill.
The earth drill is also running out of oil. Gotta hurry up.
The compartment door of the construction machinery vehicle opens and the earth drilling machine is pushed out. The large drill bit in front of the earth drilling machine starts slowly and then moves towards the sand pile on the ground.
Use a searchlight to look down below and you'll see that it's all gravel and rocks.
After a while, Qi Yanliang used a detector to detect the hollow section. Was it a pipeline?
If it is a pipe, what is it used for? Water pipes, oil pipes, gas pipes. But it doesn't look like a regular cylinder. Did the pipe collapse?
They stepped off the earth drilling machine. The pipe wall next to it was uneven.
It turned out to be snake skin. The snake sheds its skin. Gradually covered by wind and sand.
The snake skin cuticle still has a certain strength and has not been crushed by the sand.
They shut down the earth drill. Follow the snakeskin pipe. Qi Yanliang looked at the positioning device. They should be under the gas station. They cut open a section of the snake's skin. Support the snakeskin with metal supports to prevent collapse. Some sand leaked out. They quickly stretched out a thick-mouthed cylindrical pipe to block it to prevent the sand from continuing to leak downward.
The young man also followed up. He stuck his head out and looked around carefully to see if any robbers were nearby. The robbers patrolled back and forth near the power grid to prevent others from entering, but there were not many people guarding the back. They took the opportunity to walk near the gas station lobby. Qi Yanliang found some oil pipelines, then led them to the top of the snakeskin pipeline and opened the oil pipeline. He placed these oil pipelines among some stacked wooden boxes in order to make the outside look more hidden and prevent robbers from seeing the pipelines. When the pipe leads down, several wooden boxes are placed next to it. In this way, the pipe from the original hall to the underground pipe is blocked by the wooden box, so it should not be easy to find.
Qi Yanliang told the young man, "Go down first." Qi Yanliang said, "You go first and stay away quickly. The oil here is more dangerous. Then I will leave quickly when I open the valve behind."
The boy said that I ran faster, so I should open the valve from behind.
Qi Yanliang said, stop being so verbose and leave quickly.
He opened the valve and slowly stayed, and they hurriedly ran outside along the snakeskin pipe.
One of the robbers said, "Have you heard the sound of running water?"
said another robber. No. The bathroom should be quite far away from here. There is dry desert around here, and there should be no water flow.
Qi Yanliang and the others returned to the vicinity of Zhuche. Oil flows down snakeskin pipes.
However, the height inside the snakeskin pipeline does not go from top to bottom from the gas station to the construction site. Sometimes the height increases and sometimes the height decreases, so the oil cannot automatically flow along the pipeline. He wants to return it. A water pump was needed, but the snakeskin pipe was relatively thick, so they had to find a flexible pipe themselves. A large diameter flexible pipe was found and placed inside the involved pipe. Then they found a few more water pumps. It is a centrifugal pump that lifts water to a higher place due to the centrifugal force generated by the high-speed rotation of the impeller.
Before starting the water pump, fill the pump and the water inlet pipe with water. After the water pump is running, under the action of centrifugal force generated by the high-speed rotation of the impeller, the water in the impeller flow channel is thrown around and pressed into the volute. A vacuum is formed at the impeller inlet. The water in the pool is sucked along the suction pipe under external atmospheric pressure to replenish this space. Then the sucked water is thrown out by the impeller through the volute and enters the outlet pipe. It can be seen that if the impeller of the centrifugal pump continues to rotate, it can continuously absorb and press water, and the water can continuously rise from low to high or far away.
Water is sucked in along the axial direction of the impeller and flows out perpendicular to the axial direction along the flow direction of the centrifugal pump. Since the centrifugal pump forms a vacuum to absorb water at the impeller inlet, it is necessary to pour water into the pump and the suction pipe before starting, or use a vacuum pump to evacuate the air to form a vacuum, and the pump casing and suction pipe must be strictly sealed to prevent air leakage. , otherwise a vacuum cannot be formed and water cannot be sucked in. Since it is impossible to form an absolute vacuum at the impeller inlet, the water suction height of the centrifugal pump cannot exceed 10 meters. In addition to the losses caused by the water flowing through the suction pipeline, the actual allowable installation height is much less than 10 meters. If it is installed too high, it will not absorb water; in addition, since the atmospheric pressure in mountainous areas is lower than that in plains, when the same water pump is installed in mountainous areas, especially in high mountainous areas, its installation height should be lowered, otherwise it will not be able to absorb water.
They pumped the oil out of the water pump and transported it to different construction trucks through some pipelines. In this way, the fuel tanks of many construction trucks were filled up and they could run for a long distance.
The robbers thought that they would not be able to go far without fuel, but they did not expect that they had already obtained a lot of fuel from the gas station.
