Chapter 360

The drill has stopped at this time, and several workers are surrounding the drill to pull out the drill pipe one by one.

At the same time, steam has been gushing out of the drill hole under the drill, and a hot spring is constantly spraying water upward, making the scene cloudy and foggy.

Chen Xin and Cao Daren came to the rig and looked at the hot water gushing from the bottom of the well. Chen Xin was surprised and asked Cao Daren, "have you measured the water temperature? What's the temperature? "

"The water temperature is over 70 degrees. It's very hot." Cao Daren is also very excited at this time. He answers to Chen Xin and introduces the situation: "before, after the drill bit broke through 400, I had a premonition that I would come out of the water today, so I paid special attention to it. Sure enough, I met the rock below and began to come out of the water after penetrating it."

Hearing Cao Daren say that the water temperature is more than 70 degrees, Chen Xin is very happy. High water temperature means rich heat energy. In this way, it can provide more heat, which is very good news for the heating hub.

However, looking at the gushing hot spring water, Chen Xin also had some worries and asked Cao Daren, "will this water keep gushing? If it is sprayed all the time, will the later construction be affected? "

"You can rest assured that the water pressure is not high. Now the water is spraying because the aquifer has just been broken. The pressure has a release process, and there is a bit in the casing. The space is relatively small, so the water can be sprayed out. After the bit is pumped out, the water will not be sprayed so much, and it can be blocked by adding a cover." Cao Daren knew this very well and soon explained it to Chen Xin to dispel his doubts.

At this time, the scientific research personnel also knew the news of drilling out of the hot spring. Looking at the gushing hot spring water, they were excited and asked Chen Xin, "Mr. Chen, I have seen your design drawing. Should the hot water inside the heating hub be recycled? Is it necessary to drill a water injection well? "

Of course, it's impossible to pump geothermal resources in this way. Although Hunan Province is rich in groundwater resources, it can't stand such use.

Under normal circumstances, the utilization of geothermal resources is carried out through two wells. One well is used to extract groundwater to obtain heat, while the other well is also driven into the groundwater aquifer and connected with the water intake well underground. After the heat is released, the hot water extracted from the water intake well is injected into the ground again through the water injection well to realize recycling.

"Water injection wells are sure to be drilled, but where and how to drill water injection wells still need the guidance of professionals. This matter is not urgent for the time being." Naturally, Chen Xin knew that he wanted to drill a water injection well, but he was in no hurry.

The water injection well is not like the water intake well, as long as it is driven into the aquifer and can produce water.

Because it is to inject the pumped groundwater into the ground again and form a circulation with the water intake well, the location of the water injection well must be in the same aquifer as the water intake well. When positioning, it is also necessary to analyze the trend and geology of the aquifer, the size and area of the aquifer, whether it is permeable or not, and many other factors. It is not a simple matter to drill a hole every few hundred meters.

This is one of the reasons why Chen Xin said that he needs the help of geologists. This kind of professional analysis really needs real professionals.

Chen Xin is discussing with scientific researchers about drilling water injection wells, while Cao Daren is more concerned about construction.

When Cao Daren asked the workers to continue the construction, he asked Chen Xin, "the writer, now the well has been drilled out, what do you want to do next?"

"Next..." Chen Xin habitually raised his hand to touch his chin, but his hand touched his mask. He had to reluctantly put it down before he said, "next, when the water doesn't spray, let the workers clear the snow around the well and get ready to build the frame. There's no need to clear too many places. Dig around the derrick to see the ground, so that it's convenient to lay the foundation. ”

"are you ready to start building a heating hub?" One side of the researchers heard Chen Xin say, immediately understand what Chen Xin wants to do next.

Chen Xin nodded his head and answered positively: "yes, clear away the snow, lay the foundation of the heating hub, and set up the scaffold for construction. After that, I just need to assemble and install the parts I have made."

After learning about Chen Xin's arrangement, the scientific researchers and Cao Daren did not raise any objection, but Cao Daren still put forward a question to Chen Xin: "writer, after you build this heating hub, are you going to use it to melt the snow? There will certainly be a lot of accumulated water here at that time. In addition, there is no water injection well now. This water intake well will have to continuously pump water at that time. Is the discharge of this water also a problem? "

"You don't have to worry about the drainage of the pumped water. I'll wait until the water injection well is completed and the whole equipment can be operated circularly before starting it. Now I can test the machine at most. In that case, it doesn't matter if the water is discharged directly." Chen Xin naturally took this into consideration and did not plan to drain the water everywhere.

However, Cao Daren mentioned that the drainage after snow melting is really a problem that needs to be paid attention to. They dug a well to build the heating hub just in front of the station square of Linshi railway station. However, due to the small size of the railway station, and their own purpose is to clean up the accumulated snow in the railway station, when the heating hub starts, the snow melting is most likely along the railway The gullies where the tracks are running are likely to freeze the railway.This is not a trivial matter. If the track is frozen, it will cause a serious accident of train derailment.

So drainage must be considered.

"About drainage How about pumping it away and discharging it to other places? " Cao Daren's idea is relatively simple, and of course more practical: "anyway, it's snowy now, and the direct discharge is also instantaneous ice, so it won't have much impact."

After hearing Cao Daren's idea, Chen Xin and the researchers thought that this method was feasible, but they always felt that something was wrong.

The researchers thought about it and said, "isn't it good to discharge directly? According to Mr. Chen, the heat supply field generated by the heating hub can cover a radius of 200 meters. If the snow is more than 10 meters thick, it already has the size of a small lake. If so much water is discharged at will, I'm afraid it's not going to freeze out an iceberg. I think we can find a way to use it. "

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