Full-diameter core holder and full-diameter core acidification simulation device

A full-diameter core and core clamping technology, applied in the field of oilfield chemistry, can solve the problems of poor sealing performance, unable to fully simulate the real situation of acid-rock reaction under formation pressure, etc., and achieve the effect of easier control of pressure and real test data.

Active Publication Date: 2017-01-25
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology

However, the existing core holders have poor sealing performance and cannot fully simulate the real situation of acid-rock reaction under formation pressure

Method used

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  • Full-diameter core holder and full-diameter core acidification simulation device
  • Full-diameter core holder and full-diameter core acidification simulation device
  • Full-diameter core holder and full-diameter core acidification simulation device

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Embodiment Construction

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without cre...

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Abstract

The invention discloses a full-diameter core holder and a full-diameter core acidification simulation device, and belongs to the field of oilfield chemistry. The full-diameter core holder comprises a heating sleeve and a core holding assembly. The core holding assembly is arranged in the heating sleeve and comprises a first sealing component, a second sealing component and an anticorrosion rubber sleeve. The first sealing component and the second sealing component extend into an accommodating cavity, squeeze the anticorrosion rubber sleeve and close openings in two ends of the anticorrosion sleeve. The full-diameter core holder and the full-diameter core acidification simulation device have the advantages that excellent simulation effects can be realized by the full-diameter core acidification simulation device with the full-diameter core holder, and the simulation automation and the simulation authenticity can be advantageously improved.

Description

technical field [0001] The invention relates to the field of oilfield chemistry, in particular to a full-diameter rock core holder and a full-diameter rock core acidification simulation device. Background technique [0002] In the development process of carbonate reservoirs, matrix acidizing and acid fracturing are the main stimulation and stimulation methods. Acid fracturing is the process of squeezing acid fluid into fractures and formations, or alternating fracturing fluid and acid, to form fractures and increase the permeability of formations. Matrix acidizing is mainly used to remove plugs near the wellbore. It generates deep-penetrating acid-etched wormholes to form a high conductivity channel connecting the original formation near the wellbore, reducing the skin coefficient and promoting oil and gas production. [0003] Accurate characterization of the growth and morphology of acid-eroded wormholes is a fundamental problem in the study of the mechanism of acidificati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 李小刚陈雨松杨兆中马高峰邓庄孙俊
Owner SOUTHWEST PETROLEUM UNIV
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