Gas-conducting pressure measuring intermittent producing oil exploitation device

Abstract

The invention discloses a gas-conducting pressure measuring intermittent producing oil exploitation device. The gas-conducting pressure measuring intermittent producing oil exploitation device makes contact with well liquid during working, the gas-conducting pressure measuring intermittent producing oil exploitation device comprises gas conducting and pressure measuring equipment used for measuring the hydrostatic fluid column pressure, controlling equipment used for receiving data of the gas conducting and pressure measuring equipment so as to control oil pumping equipment to realize intermittent oil production, and the oil pumping equipment making direct contact with the well liquid, wherein the gas conducting and pressure measuring equipment comprises tubular billet pressure measuring equipment and sleeving pressure measuring equipment, the tubular billet pressure measuring device comprises a nitrogen cylinder, a nitrogen booster pump, a capillary steel pipe used for conducting nitrogen, a pressure transmitting cylinder used for bearing the nitrogen and tubular billet pressure sensors connected to an outlet of the nitrogen booster pump and an inlet of the capillary steel pipe which are sequentially connected, and the sleeving pressure measuring device comprises a sleeving pressure sensor connected with the oil pumping equipment. Controller equipment receives data of a data collector to control the working frequency of oil extraction equipment or start and stop of the oil extraction equipment, so that the intermittent production is realized to achieve the effect of reducing the production cost.

Description

technical field [0001] The invention relates to the field of exploitation of low-pressure and low-yield wells and the exploitation of remaining oil in old oilfields, in particular to an oil exploitation device in a gas conduction pressure measurement room. Background technique [0002] With the gradual advancement of oilfield development, the formation pressure drops, and the liquid supply capacity of some mechanically pumped wells can no longer meet the needs of continuous production, and gradually turn to intermittent production. This phenomenon is more common in low permeability oil fields. It is a recognized practice in the industry to use dynamic liquid level data to formulate a reasonable inter-well pumping system to achieve energy saving and consumption reduction. At present, the existing method is to determine the position of the dynamic liquid level through the dynamometer diagram or the sound wave, and then control the frequency of the motor through the controller...

AI Technical Summary

Problems solved by technology

[0003] Due to the presence of foam sections in the oil casing annular fluid column and the inaccurate acoustic velocity, there is a large error in the dynamic liquid level data of the oil well measured by acoustic waves; and the dynamometer diagram is drawn by the load sensor installed on the sucker rod It is seriously affected by the eccentric wear of the sucker rod, deformation, viscosity change of heavy oil, etc., and there are also large errors. Because the motor needs to continuously work to collect data to draw the power map, only through the comparison of the power map Therefore, it is only possible to achieve frequency conversion, and it is difficult to achieve intermittent mining to achieve the effect of reducing mining costs

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