super energy power

The maintenance project of "Haizuan No. [-]" did not start smoothly.

Research is one thing, actually getting started is another.The semi-submersible offshore drilling platform is the most difficult and the most widely used among several offshore drilling platforms.Seventy percent of future deepwater drilling platforms will use this method.

Even in the 80s, there were a lot of researches on it in the academic circles of various countries, and the theories involved in the third-generation drilling platform became more and more complicated.Sun Lixian and others soon encountered a bottleneck - the calculation of the external load of the offshore drilling platform.

Offshore drilling platforms are inevitably attacked by various forces in the operating environment.Including gravity, buoyancy, wind, waves, tidal currents, ice and earthquakes, etc., all need to be taken into consideration. If there is a tsunami 1000 kilometers away, the drilling platform here will collapse, or there will be a small earthquake of magnitude [-], and the drilling The platform turned out to be raging...

The calculation of the external load of the offshore drilling platform is based on the design and strength of the platform structure. The structure of the "Haizuan No. [-]" platform is damaged and needs to be repaired. What material to use, how much to use, and how to strengthen it all need to be calculated. Out of the load and then proceed.

However, Yu Dahua Industry is not the manufacturer of "Sea Diamond No. [-]". For such a degree of overhaul, you need to calculate it yourself.

Of course, this kind of calculation is far less strict than the calculation during production. In theory, it is only necessary to calculate the limit value.But that is easier said than done, especially in 1989, when various theories were still in a state of incompleteness, the Chinese academic circles had little knowledge of this cutting-edge technology, let alone manufacturers.

That is to say, some information obtained by Dahua Industrial through mergers and acquisitions can still be useful.

However, Chengdao Oilfield in Shengli Oilfield uses a bottom-mounted drilling platform.The Hua 105 used in the Seitan Oilfield in Abu Dhabi is also an improved version of the bottom type. The Hua 106 that has not yet been delivered is a second-generation semi-jack-up drilling platform produced by a joint venture... The external load of each drilling platform are not the same.need to be recalculated.The semi-submersible is the most troublesome of them.

Due to the complex structure of the semi-submersible, especially the interior of its sinking pads and columns, various components need to be strengthened and separated vertically and horizontally, which must be reprocessed.

Reflected in the external load, it is various complex.

Even Sun Lixian, a future expert in material science and structure science, lying there, can be regarded as dark and dark, with six spirits out of his body.

External loads are not calculated.Structural replacement is impossible.An engineer from Dahua.We had no choice but to carry out repairs and maintenance on well control, electrical, piping, etc...

This makes the Saudis very anxious... If they really just want to change these devices, they will do it themselves!

As long as the purchase comes, the installation is not enough.

It took Su Cheng two days to notice Sun Lixian's painful appearance.Leaning over and looking at it, I couldn't laugh or cry: "Good guy, what are you planning to write a thesis on? Starting from the basic principles? Is half a year enough for your research?"

Sun Lixian's eyes were red.Shining with the little Doudou on his face, he said in a hoarse voice: "Isn't all our drilling platforms built like this? The external load of Hua 105 is calculated by me, but this Haizuan 106 is completely different. Check it out. There are no ready-made items for foreign periodicals, so we can only get them up first.”

No matter what the future big cow is, he is still a young man who has just graduated, and he said embarrassedly while talking: "I didn't expect that the maintenance work was delayed here. I didn't think enough at the time, I should do it myself Please punish."

"It's not the army, what kind of punishment." Su Cheng waved his hand, thought for a while, and said: "This, in fact, belongs to the software part of the software and hardware. Our country's software work has not been done well. There is no accumulation, so it's no wonder You. Well, I'll work with you on the external load."

"Director Su also understands external loads?" Sun Lixian was full of distrust.Since they joined Dahua Lab, Sioux City seldom did a single job, when these big cows gradually showed their talents.Su Cheng is even more shameless than hiding his clumsiness, and puts the main energy on institutions such as Setan Oilfield and Offshore Petroleum Institute.

at this time.Su Cheng also rushed ducks to the shelves, and said bravely: "When I was in school, I also studied external loads for a period of time. There was a teacher in the laboratory who was an authority in this field. He sorted out a lot of materials for him."

"The authority of our country to do external loads? I haven't heard of it at Peking University." Sun Lixian looked suspicious.

Su Cheng coughed, thinking: I've slipped my tongue again.He smiled and said: "It was transferred later, maybe it was not from our school, but from another school, or foreign scholars visited Peking University. I worked part-study at that time, helped many teachers, and I can't remember too many."

Sun Lixian said "Oh", and while sorting out his achievements in the past few days to show Su Cheng, he chatted and said, "Su Dong, you are busy with work-study programs every day, and you also need to help visiting scholars. You have time to do work in the Chinese Department." homework?"

Su Cheng was stunned by what he said, and said, "What homework does the Chinese Department have, just reading books, writing essays and so on..."

"Really..." Sun Lixian pulled out a long tone.However, not because of suspicion, just pure ridicule.

Compared with old men like Huo Chang, Su Cheng's age was about the same as the researchers in the laboratory, and he was much easier to speak.On the contrary, the workers in the factory are much younger than those in Sioux City. In the 80s, many children from working-class families entered the factory after finishing junior high school. If they were dual-career families, they would be regular workers when they entered a better factory. Starting to count their years of service, they earned more money than students who went to high school.College students have to study 6 or 7 years longer than junior high school students, and there must be no repetition.Therefore, workers aged 24 or 10 have ten years of service and four or five years of service, so they are not considered newcomers.

Su Cheng and Sun Lixian quickly got busy.

The two of them have to use the shortest time to figure out the formula for calculating the external load, and verify it clearly, and then make it into a computer program, and then draw a conclusion. If it meets the specifications, the actual platform modification can be carried out.An order that Halliburton dared not accept for $300 million was indeed not that easy to earn.

However, to come up with a practical formula in a limited time, after a year, it would be nothing more than a fantasy.

Fortunately, this was 1989, and the complexity of the formula was not that high, so the Chinese still had the foundation and level to create miracles and conquer the sky with manpower.With the passage of time, the technological content is getting higher and higher, and more and more technology has been accumulated, so it is difficult to have such a thing again.

Su Cheng first wrote down all the external load formulas in his memory.This is somewhat beyond the learning scope of undergraduates, but not beyond its theoretical scope.

When he was working for the teacher, he sorted out all kinds of data.The weight distribution load of the bar, the gravity correction factor, the material specific gravity of the bar, the buoyancy correction factor, etc., are all empirical and need to be obtained by looking up the table.

Every time you look up the table, it is a process of memory strengthening.

It took Su Cheng a day to write the frame before it was considered filled.Needless to say, gravity, clean water buoyancy, and wind force are all readily available. Related research was done in the 70s, but flow force, seismic force, and wave force are different. The former two are current research hotspots. However, the wave force has not been studied clearly until 30 years later. There are many theories developed by researchers from various countries, but none of them is applicable to all sea conditions...

Su Cheng himself only remembered two types of linear wave and solitary wave. After looking up the information, he recalled the elliptic cosine wave. After thinking for a long time, he added a Stokes fifth-order wave, but there was a question mark behind it.

Looking at the watch, it was already 8 o'clock in the evening.

"Is there no one calling for dinner..." Su Cheng rubbed his neck and raised his head, but was surprised to find that there were nearly 10 people around him and Sun Lixian, almost all of them were engineers from Dahua Laboratory.

Before he could ask, someone else asked first: "What's the matter with the question mark behind Stokes' fifth-order wave?"

"Oh, I don't remember this formula very clearly." Not only did he not remember the formula, but he also remembered the time when Stokes' fifth-order wave appeared.

Fortunately, Sun Lixian chewed on it for a while, and said: "It's the fifth-order Stokes wave, I saw it a few days ago, let me look for it later..."

At this time, all kinds of translations are not standardized, so many people are accustomed to using foreign languages, at least not making mistakes.

Hearing that Stokes already had one, Su Cheng felt relieved and said, "Don't worry, let's eat first, and then make it after eating."

Tao Jianhua, who is engaged in structural engineering, rubbed his hands and said, "Boss Su, what are you eating here? Let's finish it one day earlier, and the project will be completed one day earlier. Let's strike while the iron is hot and make the program."

The programming mentioned here is not real programming, but making a program block diagram as the basis of programming. As for the real program, it must be outsourced.

For this, Su Cheng used the program countless times, and he was very familiar with it. He pulled the load diagram of the wind force calculation, from top to bottom, while drawing and writing, and said: "This is done, I must go to eat..."

Tao Jianhua just nodded, looked at and said: "First, judge whether the pole is on the water surface, if yes, go to the next step, judge whether the pole is covered, if yes, return, otherwise judge 'whether the pole intersects the water surface'... ..."

Sun Lixian was stunned for a while, and asked: "Su Dong, have you really studied external loads before?"

"Let me tell you, when I was studying, I helped other teachers. At that time, I didn't take it seriously. I just thought about completing the teacher's tasks, so I just memorized it. Let's do it..."

"No problem for a week, but..." Sun Lixian asked with red beans all over his face, "I remember these things if I didn't take it seriously back then... Sigh, what a pity, it would be great if we were more serious..."