I saw that when Wei Ying got off work, she met Liang Boyi, the driller, on the way back to the station from the drilling team.

So, Wei Ying told the driller Liang Boyi her thoughts, and she said:

"Driller, you say, our drilling workers, through their own technology, can the scrapped, as well as the old and can no longer be used P DC drill bits, after reprocessing, can they continue to be used?"

The driller Liang Boyi thought about it, and then he told Wei Ying with his experience of working for so many years, saying:

"To be honest, the P DC drill bit can be repaired and reused...... However, it has to be sent to a professional drill bit machining center ......"

Hearing this, Wei Yingbian was very interested and asked:

"Since the scrapped P DC drill bits can be reused after repair and processing...... So, why don't we drillers think of a way to process and repair it ourselves? If our drilling team sends the scrapped P DC drill bits to the repair and machining center, won't it cost a lot of money?"

The driller Liang Boyi nodded, he sighed and said:

"Wei Ying, although your idea is very good...... However, repairing P DC drill bits is not a job that we drillers can do, but it requires professional skilled personnel and professional equipment......"

Listening to the words of the driller Liang Boyi, Wei Ying recalled in his mind that in the morning he and technician Li Zhoujian were studying the scrapped P DC drill bit on the drill floor, and then said:

"Driller, I think that if you repair a P DC drill bit, you should mainly repair the cutting teeth at the front......"

Driller Liang Boyi says:

"Yes, the reason why the P DC drill bit is scrapped or unusable is mainly because the diamond cutting teeth in the front are damaged by grinding......"

At this time, Wei Ying suddenly opened her mind and said:

"Driller, you say, if we have a new diamond cutting tooth, or a replacement tool, can we replace the cutting tooth on the P DC drill bit by ourselves......

Although, Wei Ying's idea is bold enough,

However, the driller Liang Boyi was still very conservative and gave a negative, saying:

"Wei Ying, I don't think it's possible...... You think, how strong and combined it needs to be for a P DC drill bit, a fast rotary drill at a distance of several thousand meters downhole...... If we manually install the cutting teeth on the P DC drill bit, it will fall off in the process of cutting the rock...... If the cutting teeth on the P DC drill fall off into the downhole, it will really cause a downhole accident......"

Although, the driller Liang Boyi, said that it was very serious,

However, Wei Ying decided to give it a try......

After returning to the dormitory, Wei Ying took out relevant books and started research.

Before this, Wei Ying had never touched the P DC drill bit, let alone replaced the P DC drill bit, and the cutting teeth in front of it......

……

On this day, when Wei Ying was following the technician Li Zhoujian to measure the inclination of a single root,

The driller Liang Boyi suddenly came over, reported to the technician Li Zhoujian, and said:

"Technician, I think, let's go down to the bottom of the hole first, maybe it won't work?"

Technician Li Zhou turned his head when he saw it, he was very surprised, and asked:

"What? That P DC drill bit, isn't it a new drill bit? Why is it so fast, and it doesn't work again?"

The driller Liang Boyi was very depressed and said:

"I don't know why, maybe the stratum is more complicated......"

Technician Li Zhoujian followed the driller Liang Boyi up to the top of the drill floor and asked:

"How many meters did you drill into today's class?"

The driller Liang Boyi was very embarrassed and said:

"Maybe, less than a meter......

When technician Li Zhoujian heard that he had drilled into a day, he had made less than one meter of progress.

He was very surprised and said:

"In the last class, I drilled into a day, and the progress was 10 meters, why is your class only one meter?"

The driller Liang Boyi was also very helpless and said:

"I don't know, I think it's better to start drilling as soon as possible, check it, drill bits......"

Technician Li Zhoujian thought about it, and then said to the driller Liang Boyi:

"Don't worry, I'll report to the vice-captain...... If he agrees, we'll get back into the ...... After all, our progress in the past few days is getting less and less day by day......"

When technician Li Zhoujian went to report the situation of the deputy captain,

Wei Ying stood next to her, asked the driller Liang Boyi, and said:

"Driller, what do you think, why can't the P DC drill bit suddenly stop?"

Driller Liang Boyi relied on his experience of working for so many years, then analyzed it and said:

"I think there are three scenarios...... It may be that the stratigraphy of the underground is too complicated...... The P DC drill bit we used was not suitable...... In the second case, the P DC drill bit is broken...... In the third case, there is a falling object in the well, which directly affects and damages, and the cutting teeth on the P DC drill bit are ......"

Hearing the falling objects in the well, Wei Ying was very interested and asked:

"Driller, what do you think will fall under the well......"

The driller Liang Boyi let out a long sigh, he walked to the wellhead, and then thoughtfully said:

"I'm most afraid that there will be a piece of iron that will fall under the well...... Even if it is an inconspicuous small piece of iron, as long as it falls to the bottom of the well, it will cause fatal damage to the P DC drill bit......"

When Wei Ying saw that the situation was more serious, he frowned and asked:

"Driller, under normal circumstances, if you find that there is really falling objects in the well, how do you deal with it?"

Driller Liang Boyi remembered that a few years ago, an underground accident occurred,

He told Wei Ying, saying:

"I remember that a few years ago, when I was just a boss drilling, there was a time when Wang Yushui, an external fitter, was operating at the wellhead, and he hit the drill pipe with a hammer to open the water hole...... However, due to the excessive force, the hammer in front of the hammer fell off and fell directly from the wellhead to the bottom of the well......"

Hearing this, Wei Ying hurriedly interjected and said:

"Oh my God, what if something the size of a hammer falls into the well?"

The driller Liang Boyi carefully recalled the situation at that time and said:

"There are two ways to deal with it...... One way is to report to the team leader that there has been an accident of falling objects in the well, and then start drilling to salvage the hammer that fell at the bottom of the well...... However, if this is done, Wang Yushui, the outer fitter, will definitely be fined......"

Wei Ying asked:

"Driller, in the end, how much money was Wang Yushui fined?"

Liang Boyi shook his head and said:

"No penalty ......"

Wei Ying'er's eyes widened and she said:

"Isn't it an accident when something fell into the well?

The driller, Liang Boyi, took a step forward, and he whispered to Wei Ying, saying:

"Actually, at that time, we took a different approach......

When Wei Ying saw that the driller Liang Boyi suddenly lowered his voice,

She was very curious and asked:

"Driller, what did you do in the end?"

The driller Liang Boyi glanced back and found that there was no leader of the drilling captain standing next to him.

So, he whispered to Wei Ying, saying:

"At that time, I operated the brake handle, carefully held it with my hand, and then tried to control the rotation of the drill bit, and dialed the hammer to the next ...... in the formation."

Listening to the bold operation of the driller Liang Boyi, Wei Ying's eyes widened, she felt incredible, and said:

"Oh my God, can you still do this?"

Driller Liang Boyi, says:

"That day, too, was lucky...... Because, the strata below the well are relatively soft around...... If the stratum is a hard stone, then you can only drill and salvage the falling objects......"

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