Evaluation equipment and evaluation method for leakage and overflow monitoring instrument of three-high gas well

Abstract

The invention discloses evaluation equipment for a leakage and overflow monitoring device of a three-high gas well, and the equipment comprises a shaft module which comprises a sleeve and a drilling tool assembly penetrating into the sleeve, and the drilling tool assembly sequentially comprises a drill rod, a drill collar and a drill bit from top to bottom; the drilling fluid circulating module is used for enabling drilling fluid to circularly flow in the shaft module; the overflow simulation module is used for guiding the experimental gas into the shaft module; the well leakage simulation module is used for exporting the drilling fluid out of the shaft module; the to-be-evaluated monitoring device is connected to the drill collar; and the data acquisition and analysis module is in communication connection with the to-be-evaluated monitoring device, the overflow simulation module and the well leakage simulation module. The invention further discloses an evaluation method of the three-high gas well leakage and overflow monitoring device. The working conditions of well leakage and early overflow are simulated, the underground overflow monitoring device is evaluated, basis and support are provided for development of the overflow monitoring technology, and blowout accidents caused by missing of the optimal well control opportunity are reduced.

Description

technical field [0001] The invention relates to the technical field of gas well control safety in the development of oil and gas resources, in particular to an evaluation device and evaluation method of a three-high gas well leakage and overflow monitoring instrument. Background technique [0002] Sangao oil and gas fields refer to oil and gas fields characterized by high reserve abundance, high gas reservoir pressure, and high hydrogen sulfide content. With the increasing domestic energy demand, in order to ensure the security of my country's energy strategy, my country's oil exploration efforts have been continuously strengthened. Exploration The scope continues to expand, and more and more three-high blocks in the southwest and northwest have entered the development range. [0003] Due to the existence of high-concentration hydrogen sulfide, there are many major risks in the exploration and development of Sangao Oil and Gas Field. Blowout and lost circulation during the d...

AI Technical Summary

Problems solved by technology

[0007] To sum up, the research focus of scholars on the downhole monitoring of lost circulation and overflow during drilling is to develop new detection devices and methods after theoretical research, but there is no effective verification of monitoring performance and working stability.

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