Composite coiled tubing cable horizontal well water outlet section testing system and method

A testing system and coiled tubing technology, which is applied to the cable installation, measurement, drilling pipe and other directions in the ground conduit, which can solve the problems of affecting the sampling effect, long sampling period and high operating costs.

CN111963153APending Publication Date: 2020-11-20华信唐山石油装备有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2020-11-20

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Abstract

The invention discloses a composite coiled tubing cable horizontal well water outlet section testing system and method. An upper hydraulic packer assembly and a lower hydraulic packer assembly can beused for packing the position of any section in an oil well casing pipe. An oil-submerged electric plunger pump is used for pumping the liquid in the oil well casing pipe, the liquid conveyed to the ground surface by the underground oil-submerged electric plunger pump after packer setting is analyzed, and therefore whether the liquid is pure water, oil-containing water and water-containing oil, the liquid production capacity and the liquid discharging conditions of all sections can be visually observed; and an underground temperature and pressure sensor assembly is used for testing the temperature and pressure of the packed section, whether the section is the water discharging section or not can be further illustrated according to the pressure and temperature changes of produced liquid andall perforation sections, so that corresponding treatment measures are taken, and the phenomenon that water contained in the produced liquid is increased fast during oil-gas field horizontal well production till furious water logging happens, and normal production of an oil-water well is affected is avoided.
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Description

technical field

[0001] The invention belongs to the technical field of oil and gas field development, relates to the treatment technology of horizontal wells in the development of oil and gas fields, in particular to a composite continuous umbilical cable horizontal well water delivery section testing system and method. Background technique

[0002] In the process of oilfield development, all oilfields are investing in horizontal wells for oil production. The water content of horizontal wells will rise rapidly after a certain period of time. Once water comes out of a perforation section, the crude oil in other sections will be held down by the water because the water flow rate is faster than the original one. If it cannot come out, it will cause explosive water flooding, seriously affecting the normal development of the oilfield. For the normal production of horizontal wells, the outlet section must be found for plugging.

[0003] Conventional methods for finding water in h...

Examples

Embodiment Construction

[0078] The present invention will be described in further detail below in conjunction with specific examples, but not as a limitation of the present invention.

[0079] Such as figure 1 with figure 2 As shown, the composite continuous umbilical cable horizontal well water section test system of the present invention is composed of ground equipment 1 and downhole tool 2;

[0080] The ground equipment 1 includes a coiled tubing operation vehicle 3, a production fluid storage test tank 11, a surface hydraulic station 6, a composite umbilical cable ground separator 7, and a ground control and monitoring system 18; the coiled tubing operation vehicle 3 is used to convert the composite coiled tubing The cable 17 is put into the downhole tool 2, and the composite umbilical cable 13 output by the coiled tubing vehicle is connected with the composite umbilical cable ground separator 7; The composite umbilical ground separator 7 is connected to the production fluid storage test tank ...