Oil-gas well formation test equipment and test method thereof

Abstract

The invention discloses oil-gas well formation test equipment and a test method thereof, and belongs to the technical field of oil-gas well formation test. The oil-gas well formation test equipment comprises a first connecting pipe column, a second connecting pipe column, an autocontrol flow plug, a test instrument, a packer, a screen pipe and a perforator. The lower end of the autocontrol flow plug is connected with the upper end of the test instrument, the lower end of the test instrument is connected with the upper end of the first connecting pipe column, and the lower end of the first connecting pipe column is connected with the upper end of the screen pipe. The lower end of the screen pipe is connected with the upper end of the second connecting pipe column, the lower end of the second connecting pipe column is connected with the upper end of the perforator, the packer is arranged on the outer side of the first connecting pipe column, wherein the autocontrol flow plug is used forbalancing the pressure difference under the well bottom in the oil-gas well. The oil-gas well formation test equipment and the test method thereof can improve the balancing efficiency of the pressuredifference, improve the testing accuracy of the oil-gas well formation, and can save the cost.

Description

technical field [0001] The invention relates to the technical field of oil and gas well formation testing, in particular to an oil and gas well formation testing equipment and a testing method thereof. Background technique [0002] Formation testing is an important part of the oil testing and gas testing process. During the drilling process or after well completion, the formation testing equipment is sent to the target layer, so that the formation fluid in the target layer passes through the target layer under a certain pressure difference. The formation testing equipment is connected to the ground, and various characteristic parameters such as pressure, fluid properties, and production capacity of the destination formation are obtained through the formation testing equipment. [0003] related technologies, such as figure 1 As shown, the formation testing equipment includes a first connection string 1, a second connection string 2, a third connection string 3, a test pad 4,...

AI Technical Summary

Problems solved by technology

[0004] However, the test pad needs to occupy part of the space of the test string, which limits the flow rate of the formation fluid, and because there are usually various ions in the test pad, it affects the accuracy of the test instrument for testing the formation fluid in the destination formation. Rate

In addition, setting the test pad in the test string also requires additional costs, increasing the cost of testing the formation

Images