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A piston polymer sampler for polymer injection wells

A piston type, polymer technology, applied in the direction of sampling devices, etc., can solve the problems of affecting the detection accuracy of polymer viscosity, difficult control of sampling operation, inaccurate polymer sampling, etc., to achieve compact structure, small footprint and convenient operation Effect

Inactive Publication Date: 2016-04-06
天津市大港仪表有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems existing in the current polymer sampling method are: inaccurate polymer sampling, which affects the detection accuracy of polymer viscosity; the sampling operation is not easy to control, resulting in a great waste of materials and increasing operating costs

Method used

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  • A piston polymer sampler for polymer injection wells

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Embodiment

[0012] A piston-type polymer sampler for polymer injection wells, as shown in the accompanying drawings, includes a spring cylinder 1, a partition 2 and a sampling cylinder 3, the lower end of the spring cylinder 1 is welded and fixed to the upper end of the partition 2, and the spring The upper end of cylinder 1 is provided with top cover 4 and is threadedly connected with spring cylinder, and spring cylinder 4 is provided with spring 5 and spring cylinder piston 6, and the two ends of spring 5 join with top cover 4 and spring cylinder piston 6 respectively, and spring cylinder A piston ring a7 is arranged between the piston 6 and the spring cylinder 1, a circular hole is provided at the center of the top cover 4, a scale 8 is inserted in the circular hole, and the lower end of the scale 8 is threadedly connected and fixed with the upper surface center screw hole of the spring cylinder piston 6; There are vertical through-holes and double L-shaped through-holes inside the clap...

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Abstract

A piston type polymer sampler used for a polymer injection well includes a spring cylinder, a baffle and a sampling cylinder, the upper end of the spring cylinder is provided with a top cover, the spring cylinder is internally provided with a spring and a spring cylinder piston, the center of the top cover is provided with a circular hole and is inserted with a scale ruler; a vertical through hole and a double L shaped through hole are respectively arranged inside the baffle, the vertical through hole is respectively communicated with the spring cylinder and the sampling cylinder, and is provided with a one-way valve, the double L shaped through hole is respectively communicated with the spring cylinder, the sampling cylinder and the external part; a vertical channel outlet communicated with the sampling cylinder is provided with a flow limiting screw, a horizontal channel outlet communicated with the external part is provided with a needle shaped valve; the sampling cylinder is internally provided with the sampling cylinder piston and is driven through hydraulic oil, the lower end of the sampling cylinder is welded with a bottom cover, a vertical through hole of the bottom cover is in threaded connection with a well pipe ball valve, a horizontal through hole at the side face of the bottom cover is in threaded connection with a sampling tube ball valve and a sampling tube. The advantages of the piston type polymer sampler are that: the piston type polymer sampler has the advantages of compact structure, convenient operation, convenient and accurate sampling, high detection precision and obvious technical effects.

Description

(1) Technical field [0001] The invention relates to a polymer sampler for a polymer injection well, in particular to a piston type polymer sampler for a polymer injection well. (2) Background technology [0002] In the process of tertiary oil recovery in the oil field, it is necessary to add polymer to drive oil to enhance oil recovery. The viscosity of the polymer is an important control parameter. When the polymer is transported to the wellhead, the viscosity of the polymer usually changes, so it is necessary to frequently sample and detect the viscosity of the polymer at the wellhead. The problems in the current polymer sampling method are: inaccurate polymer sampling, which affects the detection accuracy of polymer viscosity; the sampling operation is not easy to control, resulting in a great waste of materials and increasing operating costs. (3) Contents of the invention [0003] The object of the present invention is to solve the above existing problems and provide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/10
Inventor 刘呈森徐伟生刘同照王磊宋兴风刘呈林高以树宋兴起
Owner 天津市大港仪表有限公司
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