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1. Model analysis of interaction between PDC rock bit and formation in directional wellsThere are many factors that affect the interaction between the PDC rock bit and the formation in directional wel...

Ⅰ. Logging work when the PDC rock bit is usedRetrieving cuttings is one of the important links in the field logging work, and it also provides basic conditions for the application of other logging me...

1. Force analysis of the interaction between a single PDC rock bit and rockIn the formation process of the PDC rock bit, the PDC piece needs to be obliquely inserted into the bit matrix. Therefore, du...

Ⅰ. Improvement of welding process of PDC rock bit1. Selection of welding materialsAccording to the requirements of the working conditions on the performance of the weld, and on the basis of referring...

PDC rock bit is the abbreviation of polycrystalline diamond compact drill bit, which is a commonly used drilling tool in the oil drilling industry. Initially, PDC rock bits could only be used in soft ...

1. Application Instructions of tricone rock roller bitsTri-cone bit is one of the widely used drilling bits, which has the characteristics of adapting to wide formation and high ROP. The three-cone dr...

Ⅰ. Comprehensive analysis of the development trend of PDC rock bit technology1. The formation adaptability is stronger. The underground formation and lithology are complex and changeable, and may eve...

Ⅰ. PDC rock bits dominate the marketThe PDC rock bits (polycrystalline diamond compact bit) became the main force in rock breaking as early as 10 years ago, and gradually replaced the roller cone bit...

In oil drilling, it is very important to choose different toothed roller cone bits according to different formations, which is related to the drilling rate and ultimately affects the drilling cost per...

1. The specific application of the tricone bitThe tricone bit is a metal-sealed rolling bearing, which can stably drill at medium-low WOB and medium-high rotational speed, and is an ideal choice for t...

Ⅰ. The influence of drilling pressure on the roller bit drillingWOB is a necessary condition for rock breaking at the bottom of the well. The size of the WOB determines the method and characteristics...

Ⅰ. Detailed description of deep hole drilling processing of rock bits1. When the shank is limited by the aperture, the length is large, resulting in less rigidity and low hardness. It is prone to vib...

1. The influence of different formation lithology on the failure of roller cone bitsThe influence of formation lithology on drill bit failure is reflected in drilling skills: it affects the drilling s...

1. The presence of gravel in the formation damages the PDC bit2. There are many hard interlayers in the formation, which damages the PDC bitDuring the drilling process of the PDC bit, it drills from t...

The insert tricone roller bit is under the effect of the weight on bit and the rotation of the drill string. After the teeth are crushed, they also eat into the rock, and at the same time, there is a ...