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How to solve diamond bit sticking of diamond composite bit-beneficial mining technology
Release time:
2021-03-23
Author:
Source:
Although the drill card is avoided by the captain, don't panic once you meet it. As the saying goes, "you must tie the bell to untie the bell". To successfully untie the card, you must first understand the common drill card situation. After introducing the main causes of sticking in the front, this paper will introduce how to solve the problem of diamond bit sticking in detail. Diamond drill bit repeated drilling method to solve the problem of sticking drill repeated drilling refers to the stuck position through repeated drilling, drilling and drilling operations to pass through the stuck point. After determining the stuck position of the diamond bit, by controlling the lifting system of the drilling rig, a series of irregular frequent lifting, lowering and slow rotation are adopted.
Although the drill card is avoided by the captain, don't panic once you meet it. As the saying goes, "you must tie the bell to untie the bell". To successfully untie the card, you must first understand the common drill card situation.
After introducing the main causes of sticking in the front, this paper will introduce how to solve the problem of diamond bit sticking in detail.
diamond drill bit
Repeated drilling method to solve the problem of sticking
Repeated lifting refers to the repeated lifting, tripping and lifting operations to pass the stuck point. After determining the position where the diamond bit is stuck, by controlling the lifting system of the drilling rig, a series of irregular and frequent repeated operations such as lifting, lowering and slow rotation are adopted. This kind of operation method can solve the general slight sticking, and the pulling force of the lifting drill cannot be too large to prevent the drilling tool from being stuck and unable to drill down.
Strongly Ripping Method to Solve the Problem of Drilling Suck
When the slight lifting drill can not break away from the stuck part, you can try to use a larger torque to pull the stuck drill. Before lifting, first make sure that the cable in the lifting system can withstand the pulling force applied. If the load is not enough, replace the thicker cable. In actual operation, it should also be assisted by external lifting equipment such as jacks or pipe jacking machines. This kind of method is suitable for dealing with the situation of sticking without bending in the drilling hole. If the drilling hole is bent, it is easy to cause the fracture of the diamond drilling tool.
Drilling and fishing methods to solve the problem of sticking
This kind of method is the most commonly used, including many operation methods, mainly tap fishing, reaming fishing and through-hole fishing. The premise of using these methods is that repeated lifting and vigorous lifting cannot achieve de-sticking. Because once the fishing method is adopted, the diamond drilling tool in the hole will be damaged, especially the reaming and fishing, and sometimes the whole drilling tool including the diamond drill bit will be ground and crushed.
Bucking and milling methods to solve the problem of sticking
The way of reversing and fishing with tap is similar, but this kind of method is generally used in the drilling process of oil and gas fields. Because the thickness and quality of drilling tools are much higher than that of geological drilling, the taper of tap can not meet the torque of lifting. The management and calculation of drilling tools are very important when reversing, especially when the forward and reverse drilling tools are used alternately, they should be carefully and carefully. Otherwise, due to unclear drilling tools or wrong calculation, errors of drilling tools may be caused, which will affect the treatment of accidents.
In addition to not panic when dealing with the problem of sticking, the root should not be blindly dried. Wrong operation not only cannot make the diamond bit drill tool out of the stuck position, but also causes irreversible damage to the drill tool, which makes the implementation of the later step of sticking more difficult. When the sticking problem is encountered for the first time or cannot be solved, consult the old captain's predecessors or experienced diamond bit manufacturers in time. After solving the sticking problem, sum up the experience and strive to independently complete the card release operation next time.
Key words:
Diamond, method, lifting, solving, problem, drill bit, fishing, repeated, operation
