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Quantitative sampling device

A sampling device and sampling cavity technology, applied in the direction of sampling devices, etc., can solve the problems of high work intensity, limited real-time and accuracy of gas detection, and inability to quantitatively analyze the oil and gas content of mud, etc., to ensure flow, ensure versatility and applicability Sexuality, the effect of favoring accuracy

Active Publication Date: 2017-12-26
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

At present, the oil and gas detection equipment mainly relies on the conventional electric degasser for degassing. Due to the influence of the mud liquid level, the mud cannot be collected quantitatively for degassing, so the oil and gas content of the mud cannot be quantitatively analyzed.
Therefore, mud performance testing currently mainly uses manual filtering of mud, and then testing after manual sampling, which limits the real-time and accuracy of gas detection, and at the same time, the work intensity is relatively high.

Method used

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with accompanying drawing.

[0027] The quantitative sampling device provided by the present invention includes a sampling cavity, a sampling inlet and a sampling outlet. The quantitative sampling device provides filtered, continuous and constant-flow mud samples for mud analysis devices or sensors, and realizes self-automatic cleaning during work. It is installed on analysis devices that have special requirements for mud samples, and these devices include mud oil and gas units. Degasser, on-line drilling fluid characteristic analysis device, on-line drilling fluid NMR analysis device and other equipment. The quantitative sampling device of the present invention and its respective parts will be described in detail below.

[0028] Such as figure 2 , image 3 and Figure 4 As shown, the lower part of the side wall of the sampling chamber is provided with a sampling inlet, while the upper part of the...

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Abstract

The invention relates to a quantitative sampling device. The quantitative sampling device includes a sampling cavity, through which the mud sample passes; a sampling inlet, which is arranged on the lower part of the side wall of the sampling cavity, and is used for the mud sample to enter the sampling cavity through it, so The sampling inlet includes a plurality of sampling holes, the sampling hole includes a small hole section and a large hole section, and the large hole section is close to the inside of the sampling cavity; the sampling outlet is arranged on the side wall of the sampling cavity The upper part is connected to a suction pump, and the suction pump is used to extract the mud sample from the sampling outlet. This quantitative sampling device can filter the collected mud samples and realize automatic cleaning during work to ensure continuous and constant mud sample flow.

Description

technical field [0001] The invention relates to the technical field of oil drilling engineering well logging equipment, in particular to a quantitative sampling device. Background technique [0002] In the process of oil drilling, the drill bit breaks the formation during the drilling process, and the mud circulates to bring these cuttings to the surface. When the drill bit encounters the oil and gas layer, the oil and gas contained in the oil and gas layer will dissolve in the mud and be carried to the surface. ground. Therefore, mud analysis is the main means to detect formation oil and gas, locate oil and gas layers, and evaluate oil and gas properties. At the same time, mud plays an important role in balancing drilling pressure, carrying drilling cuttings, and protecting oil and gas reservoirs. Therefore, real-time analysis of mud during drilling plays an important role in oil and gas discovery and drilling engineering. [0003] The currently developed methods for accu...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/14
Inventor 李三国张卫郑奕挺颜廷俊李继博胡中南倪卫宁
Owner CHINA PETROLEUM & CHEM CORP
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