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Characteristics of rock reamer hole openerRock reamer hole opener is a new type of drill bit composed of a gear drill bit and a mud motor. It has the advantages of low vibration and can avoid the &quo...

Rock reamer hole openers and guided drilling for rock crossingThe guided drilling for rock crossing mainly includes simple construction method, double-wall drilling rod drilling method, pneumatic or h...

In order to improve the efficiency of rock drilling, prolong the service life of drill bits, reduce the number of trips and shorten the drilling cycle, and reduce the cost of drilling operations, a se...

PDC rock bit crown profile designThe crown profile design of PDC rock bits is based on three basic profiles: single cone, shallow cone and double cone. The single cone profile is mainly used in soft f...

The special structure technology and function of the oil-used roller cone bit In order to ensure the qualified and stable quality of the PDC cutter, the PDC cutter manufacturer must not only strictly ...

At present, the tricone bit market is no longer chaotic and has become standardized and orderly, and the market competition is developing in the direction of product differentiation, reputation and af...

1. Characteristics of roller cone bits(1) The use of high-toughness alloy teeth improves the ability of the teeth to resist impact and reduces the probability of broken teeth, and the soft stratum is ...

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...

The tricone rock roller bit is an important tool for oil drilling, and its working performance will directly affect the drilling quality, drilling rate and drilling cost. We believe that many consumer...

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...