Hydraulic deepening drilling tool

Abstract

The hydraulic deepening drilling tool comprises a tool body; the tool body is provided with a front end and a rear end which are opposite to each other; a plurality of mounting holes are formed in thepositions close to the front end; a connecting part is arranged on the side, close to the front end, of each mounting hole; a limiting part is arranged on the side, away from the front end, of each mounting hole; a rotary abrasive jet nozzle is arranged in each mounting hole and comprises a rotating impeller, a mixing section and an outlet section, which communicate in sequence; a mounting protective sleeve is arranged at the downstream of the outlet section; the rotating impeller is sleeved with an outer cylinder; the installation protective sleeve is fixed in the installation hole through the connecting part; and the side, away from the front end, of the outer cylinder and the side, away from the rotating impeller, of the rotating impeller abut against the limiting part. Downhole rock can be broken through rotary abrasive jet flow, then shaft flushing or deepening drilling operation is completed, and the rotary abrasive jet flow type downhole rock breaking device has the advantagesof being easy to install and good in construction effect.

Description

technical field [0001] The invention relates to the field of oil and gas well drilling, in particular to a hydraulic deepening drilling tool. Background technique [0002] With the rapid development of my country's economy, the situation of my country's oil and gas resources is becoming increasingly severe. In 2017, the apparent consumption of oil is estimated to be 588 million tons, and the degree of dependence on foreign countries has reached 67.4%. The issue of energy strategic security is prominent. After decades of development, my country's old oil fields have generally entered the "double high" (high recovery degree, high water cut) development stage, and a large amount of remaining oil is trapped in the ground due to reservoir heterogeneity and low quality, making it difficult to develop . However, judging from the current output, 70% of China's oil output still comes from old oil fields, and its remaining recoverable reserves are still considerable. According to Chi...

AI Technical Summary

Problems solved by technology

For example, for carbonate reservoirs with severe leakage at a depth of 6,000 meters in Xinjiang, the reservoirs are cave-type, and the leakage is serious during the drilling process, resulting in limited communication reservoirs

In deep wel

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