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Device for obtaining stratum real fluid samples of cased well

A real-fluid, cased well technology, used in wellbore/well components, earthmoving, etc.

Inactive Publication Date: 2014-12-24
XIAN JINGSHIXIN GASOLINEEUM TECH DEVCO
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  • Abstract
  • Description
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  • Application Information

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And it can only be used in 7in shaft

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  • Device for obtaining stratum real fluid samples of cased well

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Such as figure 1 As shown, a device for obtaining a real fluid sample in a cased well of the present invention is characterized in that it includes a hydraulic system 1, a forward hydraulic pipeline 2, a reverse hydraulic pipeline 3, a test chamber 4, a pressure sensor 6, a sampling valve 7, Conductor hole 15, fluid resistivity meter 8 and sample pipeline 9, described hydraulic system 1 is connected with test chamber piston 5 in described test chamber 4 through forward hydraulic pipeline 2 and reverse hydraulic pipeline 3, described Pressure sensor 6 and fluid resistivity meter 8 are arranged on described sample pipe 9, and lead out its data connection line through described wire hole 15, and the front end of described sample pipe 9 is provided with sampling hole 11, so The sampling valve 7 is arranged on the sample pipe 9, the casing 14 is provided with a perf...

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Abstract

The invention discloses a device for obtaining stratum real fluid samples of a cased well. The device comprises a hydraulic system, a positive direction hydraulic pipeline, a reverse hydraulic pipeline, a test chamber, a pressure sensor, a sampling valve, a conducting wire hole, a fluid resistivity meter, a sample pipeline and a sample transferring device. The device is characterized in that the test chamber of an instrument is used as a pump pumping and discharging extraction chamber, the continuous pump pumping and discharging is changed into pump pumping and discharging one time by one time, a complicated mechanical unit is omitted, the problems of obtaining stratum real samples in most oil gas wells are solved, the speed is high, the resistivity meter and the high-precision pressure meter are used for special and complicated oil layers, and the underground fluid reorganization problem can be solved, so the instrument is simple and compact, and the reliability is improved.

Description

technical field [0001] The invention relates to a device for obtaining real fluid samples of a cased hole formation, in particular to a device for obtaining a real fluid sample of a formation for testing a casing hole cable formation. Background technique [0002] Cased wells, that is, oil and gas production wells, oil and gas wells, oil wells need to carry out dynamic testing of formations in the early, middle and late stages of their life, and also need to obtain real fluid samples in each layer of the formation, which is very important for oil and gas well management and oil and gas field development design. , Adjustment is very important. However, at present, in China, except for the oil testing stage, single-layer production can obtain real formation fluid samples under downhole formation conditions. Perhaps only the COSL open hole cable formation tester can obtain fluid samples through repeated pumping and drainage. Formation real fluid samples to downhole formations. ...

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Application Information

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IPC IPC(8): E21B49/08
Inventor 马建国秦彦斌胡长岭党瑞荣马泳高小孟白世明王铁柱
Owner XIAN JINGSHIXIN GASOLINEEUM TECH DEVCO