Method for testing fluid-producing section of horizontal pump well

Abstract

The invention discloses a method for testing the fluid-production section of a horizontal pump well, which relates to the field of testing of fluid-producing sections of horizontal oil field wells. The method comprises the following steps of: connecting a long plunger hollow oil pump to the bottom of an oil pipe, feeding deep into the horizontal well by a design pump depth, and setting the long plunger hollow oil pump in a casing; synchronously feeding a continuous oil pipe and a logging cable deep into the lower part of a segment to be tested on the fluid-producing section of the horizontal well, pressing the ground where the continuous oil pipe is positioned to separate a releasing pipe nipple from the continuous oil pipe, and pulling the continuous oil pipe out; and connecting the upper end of the oil pipe with a reciprocating ground lifting device to perform reciprocating pumping actions, starting a fluid-producing section tester, pulling the logging cable slowly, and moving the fluid-producing section tester upwards for testing during production. According to the method, oil field No.5 casing well completion and fluid-producing section testing of the horizontal well by lifting with an oil sucking machine are realized; and meanwhile, the quantity of used equipment is small, the operation time is short, and the well testing cost is lowered.

Description

technical field [0001] The invention relates to the technical field of petroleum development and production, in particular to the field of liquid production profile testing of horizontal wells in oil fields. Background technique [0002] A lot of research and experiments have been done at home and abroad for testing the fluid production profile of horizontal wells. Due to the special wellbore structure of the horizontal well and the special requirements when measuring the fluid production profile, the delivery of the fluid production profile tester and the lifting during the test are difficult problems in the testing of the fluid production profile of the horizontal well. At present, self-spraying horizontal wells mainly use crawlers or coiled tubing to transport testers, and test the fluid production profile while self-spraying production; Gas lift, crawler or coiled tubing is used to transport the tester, and the liquid production profile is tested while the gas lift is i...

AI Technical Summary

Problems solved by technology

Existing horizontal well fluid production profile test methods are easier to implement in large casing or high-yield horizontal wells, while horizontal wells in some oilfields use 5 The pipe string is completed, and the output is not high. Using the annular space test technology needs to install an eccentric wellhead, and the delivery tool is difficult to run in the annular space, and the success rate of the implementation is low; the use of the gas lift test technology requires high production of the oil well; the use of the pump test technology, Limited by the size of the pipe string, the crawler cannot pass through the oil well pump

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