"You see, this equipment is the one we use to test the 30,000 psi cement cement manifold!" Li Guishan pointed to a large underground manifold in the middle and said, "I just tested it again, and it can only be maintained at around 20,000 psi.
If it is high, various situations will occur, and these situations are so diverse that it really makes me confused!”
Cementing operation is one of the most important links in oil and gas well drilling engineering. Its main purpose is to isolate the oil layer, gas layer and water layer in the wellbore, protect the oil and gas well casing, increase the life of the oil and gas well and increase oil and gas production.
Since the beginning of cementing in the last century, after more than a hundred years of development, cementing technology at home and abroad has made great progress, which has also brought higher risks and difficulties.
Due to various changes in materials and cementing methods, cementing manifolds have also undergone various developments.
With the rapid increase in the world's demand for oil and natural gas, the world's energy development has moved from land to ocean, especially deep-sea drilling, which has put forward great requirements for cementing operations.
The important task undertaken by the Blue Whale this time requires it to operate on the seabed more than 3,000 meters deep. The drilling depth has reached 15,000 meters. The cementing operations required for drilling such a deep well are even more extraordinary. If you want to
For the cement to reach the drilling well safely and smoothly, the pressure required has reached its peak.
How can the cement cementing manifold of the Blue Whale reach 30,000 psi?
The answer to this difficult problem must be found in these seemingly simple experimental devices.
After Zhou Yan and Feng Chen took over Li Guishan's test data, they sat directly on the machine next to them and looked at it carefully. Although they were both designers, they still had extremely high abilities to identify these data, and they quickly understood
Some clues were found from it.
"Lao Li, this data seems to be somewhat reserved!" Zhou Yan frowned and said while reading.
"Keep it?" Feng Chen looked at the data in his hand, "You mean this experimental device can also increase the pressure?"
"Impossible!" Li Guishan shook his head and said, "I have already tried it. If it exceeds 20,000 psi, the pressure will become unstable, even cause the pipe to burst, and finally cause pressure failure!"
Zhou Yan said: "The reservation I am talking about is not your test device, but the pressure test of Hailong Shipyard that reached 23,000 psi before. This record was created by you, Li Guishan!"
Li Guishan did not deny it, "Yes, this is indeed the case, but they are two media, the one reaching 23,000 psi is high-pressure gas, and this time it is cement!"
"You mean that the inner diameter of high-pressure gas pipelines is much smaller, so both pipeline production and installation are correspondingly simpler, right?" Zhou Yan asked.
Li Guishan nodded without hesitation: "Yes, that's what it means! The original high-pressure gas pipeline only had an inner diameter of 1.5 centimeters, and you have also seen the inner diameter of the cementing manifold. This is not the same level!"
Zhou Yan said with a smile: "It is indeed not on the same level, but you can use your experience in high-pressure gas to apply it here, and strengthen where it is not working until all the shortcomings are eliminated, and there will always be success.
A balanced solution!”
Li Guishan seemed a little dumbfounded when he heard what Zhou Yan said. The test could still be carried out using this method. If so, how many pipe fittings would he need to make? This alone would be enough to greatly extend the period of his test, even to the point of blue.
When the Whale was on trial voyage, I was strong enough to complete this task.
"Director Zhou, you are from the design department and may not know much about our installation system. We really don't have that much time to do these things. After all, the various joints and switches involved in the manifold need to be specially made.
It's not an ordinary thing that can be taken out in a blink of an eye!" Li Guishan said helplessly.
This can be regarded as being separated by a mountain. When Zhou Yan heard what Li Guishan said, he turned his head and glanced at Feng Chenyi beside him.
"Feng Chenyi, what do you think?"
Feng Chen looked at the information in his hand, then at the huge manifold in front of him, and then said to the two of them: "Director Zhou, I feel that what you and Lao Li said are right. In fact, can we change our thinking? No.
Don’t reject any feasible plan, but see if you can connect these seemingly dead-end plans to form a common plan!”
When Zhou Yan heard this, he immediately turned to Li Guishan and said, "Old Li, what do you think?"
Li Guishan nodded after hearing this, "The method is a good one, but how can we connect these appropriate plans?"
"As long as we all think this is a good idea, then we are not in a dead end. Only a ladder can help me get out again!" Zhou Yan patted his head and said, "Let's make this feasible first.
Make a sex plan and then think about how to implement it, what do you think?"
Although Li Guishan feels a little unreliable, his current experiment has indeed reached a dead end. Let alone reaching the predetermined 30,000 psi, even 20,000 psi cannot be guaranteed. He can only treat a dead horse as a live horse doctor. Maybe it is true.
Can take a shortcut.
"As expected, your design is still professional. You should talk about it on paper first and then do it in practice!" Li Guishan said with a smile.
Zhou Yan didn't make a fuss, and even laughed: "Who says it's not the case, but this can save a lot of detours. If you can't do it on paper, there's no point in doing it yourself!"
"That's true! Let's go back to the office first!" Li Guishan said, patting the experimental equipment beside him.
This stuffy equipment is indeed not a place for people to stay. The heat emitted by various equipment is very large. Even if high-power industrial fans are installed at the front and rear, it will not be a problem. In just a short time, several people have been soaked with sweat.
Already.
Returning to the somewhat messy office, Li Guishan took out a few drawings he had drawn, which were all parts of the manifold. The specifications and models were clearly marked.
Only then did Feng Chenyi realize that this Li Guishan was indeed a treasure with his own studio. His drawing skills alone would make those freshly graduated college students a little envious.
Zhou Yan and Li Guishan gathered together on the drawings and discussed them carefully, especially putting forward various ideas for the various pipe fittings that had been tested before, and considering where problems were likely to occur. However, in Li Guishan's words, just using this
You really can’t tell whether what you say is effective or not.
At this time, Feng Chenyi's eyes fell on Li Guishan's rest bed not far away. The computer still on it was running the screen saver. The operation of the three-dimensional pipeline suddenly made him think of a way.
"Director Zhou, Lao Li, I just thought of a way. I wonder if I can combine your two ideas to solve the problem we just encountered!"
"What way?" The two of them raised their heads at the same time and looked at Feng Chenyi.