Pipe external measurement nipple for leakage flow of well while drilling

Abstract

The invention discloses a pipe external measurement nipple for leakage flow of well while drilling. The pipe external measurement nipple comprises a short drill collar, wherein a data transmission assembly is arranged at the upper end of the inner side of the short drill collar; a hydraulic power assembly is arranged at the lower end of the data transmission assembly; the lower end of the hydraulic power assembly is communicated with one end of a three-way oil path; the other two ends of the three-way oil path are respectively communicated with an energy storage assembly and a probe driving assembly. The pipe external measurement nipple has the advantages that the problem of failure to effectively block leakage due to failure to accurately measure the leakage flow of drilling fluid after well leakage occurs in the drilling operation process is effectively solved; by using the pipe external measurement nipple, the non-drilling cycle of treating the well leakage and the complicated condition induced by the well leakage is effectively shortened, the cost of petroleum and natural gas well building operation is reduced, the benefit of the petroleum and natural gas well building operation is increased, and the pipe external measurement nipple is a petroleum and natural gas while-drilling measuring tool with higher economic value and popularizing value.

Description

technical field [0001] The invention relates to the field of oil and natural gas drilling tools, in particular to a measuring sub-joint outside a leakage flow pipe while drilling. Background technique [0002] With the complexity of oil and natural gas drilling operation area, well depth, formation environment and downhole environment around the operation area, the formation conditions drilled are complicated, especially sensitive formations and high and low pressure interlaced formations often lead to wellbore instability and even drilling fluid leakage. Leakage occurs. At present, lost circulation is still one of the most serious complex situations that must be faced in the oil and gas drilling operation process, which often leads to increased drilling costs and extended drilling cycles, and even leads to serious problems such as collapse, collapse, and jamming. Sometimes it even makes it impossible to continue drilling, and the well must be filled and re-drilled to conti...

AI Technical Summary

Problems solved by technology

At present, the post-processing is still the main method for the complex situation of lost circulation in engineering. Although the lithology is judged by various measuring instruments and various data in the early stage during the drilling process, the temperature, pressure and flow rate of the drilled position are measured. Judging the location where lost circulation may occur and the inducing conditions of lost circulation, and then selecting measures to prevent lost circulation. However, lost circulation is random and uncertain. Our measures are only to greatly avoid the occurrence of lost circulation. It can completely avoid the occurrence of lost circulation, so after the occurrence of lost circulation, precise positioning, precise policy, and precise treatment are still tasks that we need to devote energy to work hard to complete

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