Direct-reading and testing integrated machine for downhole parameters of vertical well and horizontal well of oil field

Abstract

The invention discloses a direct-reading and testing integrated machine for downhole parameters of a vertical well and a horizontal well of an oil field. The direct-reading and testing integrated machine comprises a fiber cable, a micro-power consumption collector one end of which is connected with the fiber cable, an operation-pressurized back-pressure type wellhead movable sealing device arranged above a wellhead oil exploiting tree, an oil pipe crawling device for drawing the micro-power consumption collector to travel in a horizontal pipeline, an automatic control winch which is connected with the other end of the fiber cable and is positioned on ground, and a wireless processing device for wirelessly and remotely controlling the automatic control winch. According to the invention, direct-reading testing cost of an oil test and labor intensity can be greatly reduced; the number of construction people and working risks are greatly reduced; according to the technique, the traditional condition that the oil field mainly depends on a downhole storage mode for a test can be changed; the acquirement of more oil testing results can be facilitated; and an oil well testing technology is greatly developed.

Description

technical field [0001] The invention relates to an all-in-one machine for downhole parameter direct reading and testing for vertical wells and horizontal wells in oil fields. Background technique [0002] Downhole electronic thermometers and electronic pressure gauges are generally used in oil testing in domestic oilfields to obtain technical data such as bottomhole flow pressure, static pressure, pressure gradient, pressure recovery curve, pressure drop curve, temperature curve, interference and pulse test curves. At present, the technology of direct reading test of downhole parameters is to use armored cables to connect the collector and the counterweight rod under pressure to sink into the downhole by gravity for testing. Armored cable is a steel wire sheath added to the periphery of the cable, the main function is to enhance the tensile strength and wear resistance of the cable. The diameter of the armored cable currently used is 5.56mm, and the weight is about 150kg / 10...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that it can only obtain lagging data, and it is easy to miss the opportunity to obtain the results. It needs to get up frequently to obtain the required data, and the construction team and vehicles and equipment are used for many operations, the cumulative cost is high, and the work efficiency is very low. To adapt to the production of a large number of new wells in my country's oilfields every year, especially the production of horizontal wells is increasing year by year, and the requirements for testing efficiency are getting higher and higher

Obviously, this method cannot put the collector in the horizontal well, so it cannot be used for testing of horizontal oil wells

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