Method and apparatus for testing viscous oil viscosity on well boring coring site

A field testing and heavy oil viscosity technology, applied in the field of drilling and coring field testing of heavy oil viscosity, can solve the problems of inability to reflect the actual situation of the oil reservoir, large loss of light components, inaccurate test data, etc. The effect of less error, less loss and accurate data
CN102928320AActive Publication Date: 2013-02-13CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2013-02-13

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Abstract

The present invention provides a method and an apparatus for testing viscous oil viscosity on a well boring coring site, and belongs to the field of tests in oil-gas field exploration and development. According to the present invention, a standard viscosity oil is adopted to calibrate a capillary to obtain a calibration constant of the capillary; a viscous oil sample of the taken rock or detritus is squeezed out, and the squeezed sample passes through a pore type filtration device, and enters a sample chamber; the viscous oil sample in the sample chamber is driven to pass through the calibrated capillary under a certain pressure through a driving pump or a gas pump; and pressure and sample flows on both ends of the capillary are tested, and a viscosity value of the viscous oil sample can be obtained according to a viscosity formula. According to the apparatus, deficiencies of the existing viscosity test method are overcome, the viscous oil sample can be rapidly obtained on the well boring coring site, the viscous oil viscosity test at a reservoir temperature under reservoir pressure can be completed, viscous oil viscosity data can be conveniently and timely acquired, and basis is provided for viscous oil reservoir evaluation and development program formulating.
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Description

technical field

[0001] The invention belongs to the field of testing in the exploration and development of oil and gas fields, and in particular relates to a method and a device for testing the viscosity of heavy oil at drilling and coring sites. Background technique

[0002] Viscosity is one of the most important parameters for evaluating heavy oil reservoirs. High-quality viscosity data are very important for heavy oil reservoir evaluation, development plan formulation, gathering and processing. Volatile components in heavy oil have a great influence on the viscosity of heavy oil. To obtain accurate crude oil viscosity data, active crude oil samples that can best reflect the original state of the reservoir are needed. If the active crude oil can be measured on site in the mine, relatively accurate viscosity data can be obtained.

[0003] At present, most of the methods for testing the viscosity of heavy oil are to take samples from the wellhead of production wells, and u...

Claims

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