Intelligent control device and control method of layer mining, control and testing of gas well

Abstract

The invention discloses a control method layer mining, control and testing of gas well. The method comprises the following steps: setting three production gas layers of a natural gas well as a gas layer A, a gas layer B and a gas layer C, mounting a direct reading intelligent gas well underground layering zonal pressure measuring device on each layer, packing the three production gas layers through a gas control underground packer, and ensuring that a ground intelligent control box gives an instruction to enable the direct reading intelligent gas well underground layering zonal pressure measuring devices of the gas layers A and C to be closed, open a communicating hole of the direct reading intelligent gas well underground layering zonal pressure measuring device of the gas layer B when the gas layer A is required to be closed, the gas layer B is required to perform production and the gas layer C is required to be closed, so as to enable natural gas of the gas layer B to be output to the ground through an oil pipe and to realize layer control; ensuring that a ground metering station can timely measure the gas output of a layer, so as to realize layer gas production; ensuring that the direct reading intelligent gas well underground layering zonal pressure measuring devices can record the production pressure difference and underground temperature at the same time, so as to realize layer testing. The gas layer A, the gas layer B and the gas layer C can be subjected to simultaneously gas production and testing.

Description

technical field [0001] The invention relates to the field of oil field natural gas technology development, in particular to an intelligent control device and control method for stratified exploitation, control and testing of gas wells. Background technique [0002] Natural gas is the second energy source for oilfield development, and plays an important role in oilfield development. As the development of crude oil in the oil field is nearly exhausted, the development of natural gas becomes more important. In natural gas development, layered exploitation, layered control, and layered pressure measurement are the key technologies in natural gas development and the main means to master the rational development of gas fields. In the past, there was no special pressure measurement device for natural gas wells, and natural gas wells were exploited in layers, Layer control and layer pressure measurement cannot be completed, resulting in unreasonable exploitation of natural gas fiel...

AI Technical Summary

Problems solved by technology

Due to the high pressure of the gas well, it is difficult to realize the sealing, control and direct reading test of each section of the gas well

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