CN106523029A - Transformation method for irregular salt cavern - Google Patents

Transformation method for irregular salt cavern Download PDF

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Publication number
CN106523029A
CN106523029A CN201610948066.2A CN201610948066A CN106523029A CN 106523029 A CN106523029 A CN 106523029A CN 201610948066 A CN201610948066 A CN 201610948066A CN 106523029 A CN106523029 A CN 106523029A
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salt
deformed
compressed air
chamber
pressure
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刘伟
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Chongqing University
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Chongqing University
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/16Modification of mine passages or chambers for storage purposes, especially for liquids or gases

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Abstract

本发明实施例提供一种畸形盐腔改造方法,所述方法包括:将压缩空气通过套管注入畸形盐腔内部;将淡水通过中心管注入所述畸形盐腔底部;调节所述压缩空气的压力,以使所述压缩空气的压力与所述淡水的压力达到液压平衡形成气水界面,所述气水界面用于防止所述淡水向所述气水界面盐腔上部流动以及溶解所述气水界面盐腔上部侧面的盐岩;所述淡水溶解所述畸形盐腔位于所述气水界面下部侧面的盐岩,以使所述畸形盐腔在所述气水界面下部侧面的半径扩大,当扩大后的畸形盐腔达到预设范围时,获得改造后的盐腔。所述方法可节省因使用油垫而产生的高昂成本,而且技术上更易于实施,并最终将畸形盐腔改造成具有较高价值的油气储库。

An embodiment of the present invention provides a method for reconstructing a deformed salt chamber, the method comprising: injecting compressed air into the deformed salt chamber through a casing; injecting fresh water into the bottom of the deformed salt chamber through a central tube; adjusting the pressure of the compressed air so that the pressure of the compressed air and the pressure of the fresh water reach hydraulic balance to form an air-water interface, and the air-water interface is used to prevent the fresh water from flowing to the upper part of the air-water interface salt chamber and dissolve the air-water The salt rock on the upper side of the interface salt cavity; the fresh water dissolves the salt rock on the lower side of the gas-water interface of the deformed salt cavity, so that the radius of the deformed salt cavity on the lower side of the gas-water interface is enlarged. When the enlarged deformed salt chamber reaches the preset range, a modified salt chamber will be obtained. The method can save the high cost due to the use of oil pads, and is technically easier to implement, and finally transforms the deformed salt cavity into a high-value oil and gas reservoir.

Description

畸形盐腔改造方法Reconstruction method of malformed salt cavity

技术领域technical field

本发明涉及盐腔领域,具体而言,涉及一种畸形盐腔改造方法。The invention relates to the field of salt chambers, in particular to a method for transforming deformed salt chambers.

背景技术Background technique

目前,为解决日益严重的能源危机,建立能源战略储备势在必行,而建造地下盐穴储备库是能源战略储备工作中最重要的一环,地下盐穴储库一般是基于单井油垫水溶开采法进行建造,利用石油密度比水小而浮于上部控制上溶的特性来帮助建造腔体;但是工艺实施不当、或地质条件认识不清时,容易出现横向尺寸过小的条柱形畸形腔体,导致腔体无法用于能源储备。此时,若仍采用油垫开采法对溶腔进行改造,不但耗费石油多、成本高昂,而且技术难以实施。At present, in order to solve the increasingly serious energy crisis, it is imperative to establish an energy strategic reserve, and the construction of an underground salt cavern reserve is the most important part of the energy strategic reserve. The underground salt cavern store is generally based on a single well oil pad The water-soluble mining method is used for construction, and the oil density is lower than water, and the characteristics of floating on the upper part to control the upper dissolution are used to help build the cavity; but when the process is not implemented properly, or the geological conditions are not clearly understood, it is easy to appear columnar with too small lateral size Malformed cavities, rendering the cavities unusable for energy storage. At this time, if the oil cushion mining method is still used to modify the dissolved cavity, it will not only consume a lot of oil and cost a lot, but also the technology is difficult to implement.

发明内容Contents of the invention

有鉴于此,本发明实施例的目的在于提供一种畸形盐腔改造方法,以解决上述问题。In view of this, the purpose of the embodiments of the present invention is to provide a method for reconstructing a deformed salt cavity to solve the above problems.

第一方面,本发明实施例提供一种畸形盐腔改造方法,所述方法包括:将压缩空气通过套管注入畸形盐腔内部;将淡水通过中心管注入所述畸形盐腔底部;调节所述压缩空气的压力,以使所述压缩空气的压力与所述淡水的压力达到液压平衡形成气水界面,所述气水界面用于防止所述淡水向所述气水界面盐腔上部流动以及溶解所述气水界面盐腔上部侧面的盐岩;所述淡水溶解所述畸形盐腔位于所述气水界面下部侧面的盐岩,以使所述畸形盐腔在所述气水界面下部侧面的半径扩大,当扩大后的畸形盐腔达到预设范围时,获得改造后的盐腔。In the first aspect, an embodiment of the present invention provides a method for reconstructing a deformed salt chamber, the method comprising: injecting compressed air into the deformed salt chamber through a sleeve; injecting fresh water into the bottom of the deformed salt chamber through a central pipe; adjusting the Compress the pressure of the air so that the pressure of the compressed air and the pressure of the fresh water reach hydraulic balance to form an air-water interface, and the air-water interface is used to prevent the fresh water from flowing to the upper part of the air-water interface salt chamber and dissolving The salt rock on the upper side of the gas-water interface salt cavity; the fresh water dissolves the salt rock on the lower side of the gas-water interface in the deformed salt cavity, so that the deformed salt cavity is on the lower side of the gas-water interface The radius is expanded, and when the enlarged deformed salt chamber reaches the preset range, a modified salt chamber is obtained.

与现有技术相比,本发明实施例提供的一种畸形盐腔改造方法,通过在畸形盐腔改造时使用压缩空气作为气垫,可节省因使用油垫而产生的高昂成本,而且技术上更易于实施,并且通过调节压缩空气的压力,使所述压缩空气的压力与所述淡水的压力达到液压平衡形成气水界面,所述气水界面用于防止所述淡水向所述气水界面盐腔上部流动以及溶解所述气水界面盐腔上部侧面的盐岩,并最终将畸形盐腔改造成预设的盐腔,即具有较高价值的油气储库。Compared with the prior art, the embodiment of the present invention provides a method for reconstructing a deformed salt cavity, by using compressed air as an air cushion during the reconstruction of a deformed salt cavity, which can save the high cost caused by the use of an oil cushion, and is more technically It is easy to implement, and by adjusting the pressure of the compressed air, the pressure of the compressed air and the pressure of the fresh water are hydraulically balanced to form an air-water interface, and the air-water interface is used to prevent the fresh water from salting the air-water interface The upper part of the cavity flows and dissolves the salt rock on the upper side of the gas-water interface salt cavity, and finally transforms the deformed salt cavity into a preset salt cavity, that is, a high-value oil and gas reservoir.

附图说明Description of drawings

为了更清楚地说明本发明实施例的技术方案,下面将对实施例中所需要使用的附图作简单地介绍,应当理解,以下附图仅示出了本发明的某些实施例,因此不应被看作是对范围的限定,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他相关的附图。In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and thus It should be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

图1是本发明第一实施例提供的一种畸形盐腔改造方法的流程图。Fig. 1 is a flow chart of a method for reconstructing a deformed salt cavity provided by the first embodiment of the present invention.

图2是本发明第一实施例提供的一种畸形盐腔改造方法的示意图。Fig. 2 is a schematic diagram of a method for reconstructing a deformed salt cavity according to the first embodiment of the present invention.

图3是本发明第二实施例提供的一种畸形盐腔改造方法的流程图。Fig. 3 is a flowchart of a method for reconstructing a deformed salt cavity according to the second embodiment of the present invention.

图4是本发明第二实施例提供的一种畸形盐腔改造方法原理的第一示意图。Fig. 4 is the first schematic diagram of the principle of a method for reconstructing a deformed salt cavity provided by the second embodiment of the present invention.

图5是本发明第二实施例提供的一种畸形盐腔改造方法原理的第二示意图。Fig. 5 is a second schematic diagram of the principle of a method for reconstructing a deformed salt cavity provided by the second embodiment of the present invention.

图6是本发明第二实施例提供的一种畸形盐腔改造方法原理的第三示意图。Fig. 6 is a third schematic diagram of the principle of a method for reconstructing a deformed salt cavity provided by the second embodiment of the present invention.

图7是本发明第三实施例提供的一种畸形盐腔改造方法的流程图。Fig. 7 is a flow chart of a method for reconstructing a deformed salt cavity according to the third embodiment of the present invention.

具体实施方式detailed description

下面将结合本发明实施例中附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。通常在此处附图中描述和示出的本发明实施例的组件可以以各种不同的配置来布置和设计。因此,以下对在附图中提供的本发明的实施例的详细描述并非旨在限制要求保护的本发明的范围,而是仅仅表示本发明的选定实施例。基于本发明的实施例,本领域技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例,都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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 those skilled in the art without making creative efforts belong to the protection scope of the present invention.

应注意到:相似的标号和字母在下面的附图中表示类似项,因此,一旦某一项在一个附图中被定义,则在随后的附图中不需要对其进行进一步定义和解释。同时,在本发明的描述中,术语“第一”、“第二”等仅用于区分描述,而不能理解为指示或暗示相对重要性。It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

图1示出了本发明第一实施例提供的一种畸形盐腔改造方法的流程图。图2是本发明第一实施例提供的一种畸形盐腔改造方法的示意图。Fig. 1 shows a flow chart of a method for reconstructing a deformed salt cavity provided by the first embodiment of the present invention. Fig. 2 is a schematic diagram of a method for reconstructing a deformed salt cavity according to the first embodiment of the present invention.

请参阅图2,本实施例提供的一种畸形盐腔改造方法在实施时,使用了套管100以及中心管300。其中,中心管300套设于套管100,所述套管100与中心管300之间有间隙,即形成环空部分,以使压缩空气通过套管100的环空部分注入畸形盐腔400内部。可以理解的是,所述套管开口处可以设置阀门,以使所述压缩空气从所述阀门注入并进入畸形盐腔400内部。所述套管100设置与所述畸形盐腔400的开口处,与所述畸形盐腔400形成密闭空间。所述淡水通过中心管300注入所述畸形盐腔400底部。可以理解的,所述中心管300的开口处也可以设置阀门,以使所述淡水从中心管300的阀门注入,并进入所述畸形盐腔400底部。Please refer to FIG. 2 , a method for reconstructing a deformed salt cavity provided in this embodiment uses a casing 100 and a central tube 300 during implementation. Wherein, the central pipe 300 is sleeved on the casing 100, and there is a gap between the casing 100 and the central pipe 300, that is, an annular part is formed, so that compressed air can be injected into the deformed salt chamber 400 through the annular part of the casing 100. . It can be understood that a valve may be provided at the opening of the casing, so that the compressed air can be injected into the malformed salt chamber 400 through the valve. The casing 100 is arranged at the opening of the deformed salt chamber 400 to form a closed space with the deformed salt chamber 400 . The fresh water is injected into the bottom of the deformed salt chamber 400 through the central pipe 300 . It can be understood that a valve can also be set at the opening of the central pipe 300 , so that the fresh water can be injected from the valve of the central pipe 300 and enter the bottom of the deformed salt chamber 400 .

请参阅图1,图1示出了本发明第一实施例提供的一种畸形盐腔改造方法的流程图。所述方法包括:Please refer to FIG. 1 . FIG. 1 shows a flow chart of a method for reconstructing a deformed salt cavity according to the first embodiment of the present invention. The methods include:

步骤S101,将压缩空气通过套管注入畸形盐腔内部;Step S101, inject compressed air into the deformed salt cavity through the casing;

其中,所述压缩空气可以通过在地表设置一个装有压缩空气的汞,通过所述装有压缩空气的汞将已经压缩的空气注入腔体。Wherein, the compressed air can be provided on the ground surface with a mercury equipped with compressed air, and the compressed air can be injected into the cavity through the mercury equipped with compressed air.

步骤S102,将淡水通过中心管注入所述畸形盐腔底部;Step S102, injecting fresh water into the bottom of the deformed salt cavity through the central pipe;

步骤S103,调节所述压缩空气的压力,以使所述压缩空气的压力与所述淡水的压力达到液压平衡形成气水界面,所述气水界面用于防止所述淡水向所述气水界面盐腔上部流动以及溶解所述气水界面盐腔上部侧面的盐岩;Step S103, adjusting the pressure of the compressed air so that the pressure of the compressed air and the pressure of the fresh water reach hydraulic balance to form an air-water interface, and the air-water interface is used to prevent the fresh water from flowing to the air-water interface The upper part of the salt cavity flows and dissolves the salt rock on the upper side of the salt cavity at the air-water interface;

其中,可以通过通过地面空气压缩机获取所述压缩空气的压力的值,然后调节所述压缩空气的压力。Wherein, the value of the pressure of the compressed air may be acquired through a ground air compressor, and then the pressure of the compressed air may be adjusted.

步骤S104,所述淡水溶解所述畸形盐腔位于所述气水界面下部侧面的盐岩,以使所述畸形盐腔在所述气水界面下部侧面的半径扩大,当扩大后的畸形盐腔达到预设范围时,获得改造后的盐腔。Step S104, the fresh water dissolves the salt rock of the deformed salt cavity located at the lower side of the gas-water interface, so that the radius of the deformed salt cavity at the lower side of the gas-water interface is enlarged. When the enlarged deformed salt cavity When the preset range is reached, a modified salt chamber is obtained.

将压缩空气通过套管100注入畸形盐腔400内部,此时由于压缩空气从畸形盐腔400的上部注入,因此压缩空气处于畸形盐腔400的上部。并将淡水通过中心管300注入所述畸形盐腔400底部,由于淡水从所述畸形盐腔400底部注入,因此淡水处于所述畸形盐腔400的底部。调节所述压缩空气的压力,以使所述压缩空气的压力与所述淡水的压力达到液压平衡形成气水界面600,此时处于气水界面600下方的淡水由于压力无法向上流动,因此所述淡水溶解所述畸形盐腔400在所述气水界面600下部侧面的盐岩,以使所述畸形盐腔400在所述气水界面600下部侧面的半径扩大,当扩大后的畸形盐腔400达到预设范围时,获得改造后的盐腔。The compressed air is injected into the deformed salt chamber 400 through the casing 100 , and the compressed air is in the upper part of the deformed salt chamber 400 because the compressed air is injected from the upper part of the deformed salt chamber 400 . The fresh water is injected into the bottom of the deformed salt chamber 400 through the central pipe 300 . Since the fresh water is injected from the bottom of the deformed salt chamber 400 , the fresh water is at the bottom of the deformed salt chamber 400 . Adjust the pressure of the compressed air so that the pressure of the compressed air and the pressure of the fresh water reach a hydraulic balance to form an air-water interface 600. At this time, the fresh water below the air-water interface 600 cannot flow upward due to pressure, so the Fresh water dissolves the salt rock of the deformed salt chamber 400 at the lower side of the air-water interface 600, so that the radius of the deformed salt chamber 400 at the lower side of the air-water interface 600 expands. When the enlarged deformed salt chamber 400 When the preset range is reached, a modified salt chamber is obtained.

本发明实施例提供的一种畸形盐腔改造方法,通过在畸形盐腔改造时使用压缩空气作为气垫,可节省因使用油垫而产生的高昂成本,而且技术上更易于实施,并且通过调节压缩空气的压力,使所述压缩空气的压力与所述淡水的压力达到液压平衡形成气水界面,所述气水界面用于防止所述淡水向所述气水界面盐腔上部流动以及溶解所述气水界面盐腔上部侧面的盐岩,并最终将畸形盐腔改造成预设的盐腔,即具有较高价值的油气储库。The embodiment of the present invention provides a method for reconstructing a deformed salt cavity. By using compressed air as an air cushion during the reconstruction of a deformed salt cavity, the high cost caused by the use of an oil cushion can be saved, and it is technically easier to implement. The pressure of the air, so that the pressure of the compressed air and the pressure of the fresh water reach a hydraulic balance to form an air-water interface, and the air-water interface is used to prevent the fresh water from flowing to the upper part of the air-water interface salt chamber and dissolve the The salt rock on the upper side of the salt cavern at the gas-water interface, and finally transform the deformed salt cavern into the preset salt cavern, that is, a high-value oil and gas reservoir.

图3示出了本发明第二实施例提供的一种畸形盐腔改造方法的流程图。图4是本发明第二实施例提供的一种畸形盐腔改造方法原理的第一示意图。图5是本发明第二实施例提供的一种畸形盐腔改造方法原理的第二示意图。图6是本发明第二实施例提供的一种畸形盐腔改造方法原理的第三示意图。Fig. 3 shows a flowchart of a method for reconstructing a deformed salt cavity according to the second embodiment of the present invention. Fig. 4 is the first schematic diagram of the principle of a method for reconstructing a deformed salt cavity provided by the second embodiment of the present invention. Fig. 5 is a second schematic diagram of the principle of a method for reconstructing a deformed salt cavity provided by the second embodiment of the present invention. Fig. 6 is a third schematic diagram of the principle of a method for reconstructing a deformed salt cavity provided by the second embodiment of the present invention.

如图4至图6所示,本实施例提供的一种畸形盐腔改造方法在实施时,使用了套管100,中间管200,中心管300。其中,所述套管100,所述中间管200以及所述中心管300的开口处都可以设置阀门。中心管300套设于中间管200,并且中心管300与中间管200之间有间隙,即形成环空部分,以使所述卤水通过中心管300与中间管200形成的环空部分排出地表,中间管200套设于套管100,所述套管100与中间管200之间有间隙,即也形成环空部分,以使压缩空气通过套管的环空部分注入畸形盐腔400内部。所述套管100设置与所述畸形盐腔400的开口处,与所述畸形盐腔400形成密闭空间。As shown in FIG. 4 to FIG. 6 , a casing 100 , an intermediate tube 200 , and a central tube 300 are used in implementing a deformed salt cavity reconstruction method provided in this embodiment. Wherein, the openings of the casing 100 , the intermediate pipe 200 and the central pipe 300 can all be provided with valves. The central pipe 300 is sleeved on the central pipe 200, and there is a gap between the central pipe 300 and the central pipe 200, that is, an annular part is formed, so that the brine can be discharged to the surface through the annular part formed by the central pipe 300 and the central pipe 200, The intermediate pipe 200 is sleeved on the casing 100 , and there is a gap between the casing 100 and the intermediate pipe 200 , that is, an annular part is also formed, so that compressed air can be injected into the deformed salt chamber 400 through the annular part of the casing. The casing 100 is arranged at the opening of the deformed salt chamber 400 to form a closed space with the deformed salt chamber 400 .

请参阅图3,图3示出了本发明第二实施例提供的一种畸形盐腔改造方法的流程图。所述方法包括:Please refer to FIG. 3 . FIG. 3 shows a flowchart of a method for reconstructing a deformed salt cavity according to the second embodiment of the present invention. The methods include:

步骤S201,将压缩空气通过套管注入畸形盐腔内部;Step S201, injecting compressed air into the deformed salt cavity through the casing;

步骤S202,将淡水通过中心管注入所述畸形盐腔底部;Step S202, inject fresh water into the bottom of the deformed salt cavity through the central pipe;

步骤S203,调节所述压缩空气的压力,以使所述压缩空气的压力与所述淡水的压力达到液压平衡形成气水界面,所述气水界面用于防止所述淡水向所述气水界面盐腔上部流动以及溶解所述气水界面盐腔上部侧面的盐岩;Step S203, adjusting the pressure of the compressed air so that the pressure of the compressed air and the pressure of the fresh water reach hydraulic balance to form an air-water interface, and the air-water interface is used to prevent the fresh water from flowing to the air-water interface The upper part of the salt cavity flows and dissolves the salt rock on the upper side of the salt cavity at the air-water interface;

步骤S204,所述淡水溶解所述畸形盐腔在所述气水界面下部侧面的盐岩形成卤水,所述卤水通过中心管与中间管形成的环空部分排出地表,将所述卤水输送至卤水厂;Step S204, the fresh water dissolves the salt rock in the lower side of the air-water interface in the deformed salt chamber to form brine, and the brine is discharged to the surface through the annular space formed by the central pipe and the middle pipe, and the brine is transported to the brine factory;

步骤S205,再次调节所述压缩空气的压力,以使所述气水界面的高度上升;Step S205, adjusting the pressure of the compressed air again to increase the height of the air-water interface;

步骤S206,将中间管往地面方向提升,以使注入的淡水溶解所述畸形盐腔上部侧面的盐岩;Step S206, lifting the intermediate pipe towards the ground, so that the injected fresh water dissolves the salt rock on the upper side of the deformed salt cavity;

步骤S207,当扩大后的畸形盐腔达到预设范围时,获得改造后的盐腔。Step S207, when the enlarged deformed salt chamber reaches the preset range, obtain the reconstructed salt chamber.

其中,可以通过在地面采集排出的所述卤水的量,判断所述畸形盐腔是否达到预设范围。可以理解的是,注入多少水,就会溶解多少盐,通过在地面采集排出的卤水的量,并进行数据监测,则可以判断所述畸形盐腔是否达到预设范围。可以理解的是,判断所述畸形盐腔是否达到预设范围的实施方式有多种,并不局限于所述实施方式。Wherein, it can be judged whether the deformed salt cavity reaches the preset range by collecting the amount of the discharged brine on the ground. It can be understood that how much water is injected will dissolve how much salt, and by collecting the amount of discharged brine on the ground and monitoring the data, it can be judged whether the deformed salt cavity reaches the preset range. It can be understood that, there are many implementation manners for judging whether the deformed salt cavity reaches the preset range, and are not limited to the implementation manners.

请参阅图4,首先,将压缩空气通过套管100注入畸形盐腔400内部,此时由于压缩空气从畸形盐腔400的上部注入,因此压缩空气处于畸形盐腔400的上部。并将淡水通过中心管300注入所述畸形盐腔400底部,由于淡水从所述畸形盐腔400底部注入,因此淡水处于所述畸形盐腔400的底部。调节所述压缩空气的压力,以使所述压缩空气的压力与所述淡水的压力达到液压平衡形成气水界面600,此时处于气水界面600下方的淡水由于压力无法向上流动,因此所述淡水溶解所述畸形盐腔在所述气水界面下部侧面的盐岩。盐岩溶解后形成卤水,由于注入的淡水从腔体入口到腔底会产生静液压力,也可以在腔体入口额外施加压力,此时,所述卤水通过中心管与中间管200形成的环空部分排出地表,将所述卤水输送至卤水厂。通过在地面采集排出的所述卤水的量,判断所述畸形盐腔是否达到预设范围。当扩大后的畸形盐腔400达到预设范围时,再次调节所述压缩空气的压力,以使所述气水界面600的高度上升形成新的气水界面600。并且同时将中间管往地面方向提升,以使注入的淡水溶解所述畸形盐腔上部侧面的盐岩。Please refer to FIG. 4 , firstly, the compressed air is injected into the deformed salt chamber 400 through the casing 100 . At this time, the compressed air is in the upper part of the deformed salt chamber 400 because the compressed air is injected from the upper part of the deformed salt chamber 400 . The fresh water is injected into the bottom of the deformed salt chamber 400 through the central pipe 300 . Since the fresh water is injected from the bottom of the deformed salt chamber 400 , the fresh water is at the bottom of the deformed salt chamber 400 . Adjust the pressure of the compressed air so that the pressure of the compressed air and the pressure of the fresh water reach a hydraulic balance to form an air-water interface 600. At this time, the fresh water below the air-water interface 600 cannot flow upward due to pressure, so the The fresh water dissolves the salt rock on the side of the lower part of the gas-water interface in the deformed salt cavity. After the salt rock dissolves, brine is formed. Since the injected fresh water will generate hydrostatic pressure from the entrance to the bottom of the cavity, additional pressure can also be applied at the entrance of the cavity. At this time, the brine passes through the ring formed by the central pipe and the intermediate pipe 200 The empty portion is drained to the surface and the brine is transported to a brine plant. By collecting the amount of brine discharged on the ground, it is judged whether the deformed salt cavity reaches a preset range. When the enlarged deformed salt chamber 400 reaches the preset range, the pressure of the compressed air is adjusted again so that the height of the air-water interface 600 rises to form a new air-water interface 600 . And at the same time, the intermediate pipe is lifted toward the ground, so that the injected fresh water dissolves the salt rock on the upper side of the deformed salt cavity.

请参阅图5,图5示出了当通过调节上升压缩空气的压力后,使得气水界面600的高度上升后的示意图。此时,畸形盐腔400到图3中的气水界面600之间的盐岩已经溶解并形成了卤水,当淡水再进入时,不会再溶解畸形盐腔400到图3中的气水界面600之间的盐岩,此时,淡水开始溶解图4中的气水界面600到图5中新的气水界面600之间的盐岩。请参照图6,图6示出了改造后的腔体的示意图。通过多次调解所述压缩空气的压力,以使所述气水界面600的高度不断上升,达到逐步溶解侧面盐岩的目的。并最终形成改造后的腔体500。Please refer to FIG. 5 . FIG. 5 shows a schematic diagram after the height of the air-water interface 600 is raised by adjusting the pressure of the rising compressed air. At this time, the salt rock between the deformed salt cavern 400 and the air-water interface 600 in Fig. 3 has been dissolved and formed brine, and when fresh water enters again, the salt rock between the deformed salt cavern 400 and the air-water interface in Fig. 3 will not be dissolved again 600, at this moment, fresh water begins to dissolve the salt rock between the gas-water contact 600 in FIG. 4 and the new gas-water contact 600 in FIG. 5 . Please refer to FIG. 6 . FIG. 6 shows a schematic diagram of the modified cavity. By adjusting the pressure of the compressed air several times, the height of the air-water interface 600 is continuously raised, and the purpose of gradually dissolving the lateral salt rock is achieved. And finally form the modified cavity 500 .

本发明实施例提供的一种畸形盐腔改造方法,通过在畸形盐腔改造时使用压缩空气作为气垫,可节省因使用油垫而产生的高昂成本,而且技术上更易于实施,并且通过调节压缩空气的压力,使所述压缩空气的压力与所述淡水的压力达到液压平衡形成气水界面,所述气水界面用于防止所述淡水向所述气水界面盐腔上部流动以及溶解所述气水界面盐腔上部侧面的盐岩,并最终将畸形盐腔改造成预设的盐腔,即具有较高价值的油气储库。并且,同时将采出的卤水输送到工厂,还会产生额外经济效益。The embodiment of the present invention provides a method for reconstructing a deformed salt cavity. By using compressed air as an air cushion during the reconstruction of a deformed salt cavity, the high cost caused by the use of an oil cushion can be saved, and it is technically easier to implement. The pressure of the air, so that the pressure of the compressed air and the pressure of the fresh water reach a hydraulic balance to form an air-water interface, and the air-water interface is used to prevent the fresh water from flowing to the upper part of the air-water interface salt chamber and dissolve the The salt rock on the upper side of the salt cavern at the gas-water interface, and finally transform the deformed salt cavern into the preset salt cavern, that is, a high-value oil and gas reservoir. Moreover, at the same time, the produced brine is transported to the factory, which will also generate additional economic benefits.

图7示出了本发明第三实施例提供的一种畸形盐腔改造方法的流程图,请参阅图7,所述方法包括:Fig. 7 shows a flow chart of a deformed salt cavity reconstruction method provided by the third embodiment of the present invention, please refer to Fig. 7, the method includes:

步骤S301,对所述畸形盐腔进行声呐测腔,获取所述畸形盐腔的整体形状特征。Step S301, performing sonar cavity measurement on the deformed salt cavity to obtain the overall shape characteristics of the deformed salt cavity.

可以理解的是,在进行畸形盐腔改造之前,可以先进行准备工作,采集所述畸形盐腔的整体形状特征,为下一步腔体改造提供完整资料,使得所述畸形盐腔改造更准确。It can be understood that before the reconstruction of the deformed salt cavity, preparatory work can be carried out first, and the overall shape characteristics of the deformed salt cavity can be collected to provide complete information for the next cavity reconstruction, so that the reconstruction of the deformed salt cavity can be more accurate.

其中,所述整体形状特征包括所述畸形盐腔的三维形态,各部位对应的尺寸及深度。Wherein, the overall shape features include the three-dimensional shape of the deformed salt cavity, the corresponding size and depth of each part.

步骤S302,将压缩空气通过套管注入畸形盐腔内部;Step S302, inject compressed air into the inside of the deformed salt cavity through the casing;

步骤S303,将淡水通过中心管注入所述畸形盐腔底部;Step S303, inject fresh water into the bottom of the deformed salt cavity through the central pipe;

步骤S304,调节所述压缩空气的压力,以使所述压缩空气的压力与所述淡水的压力达到液压平衡形成气水界面,所述气水界面用于防止所述淡水向所述气水界面盐腔上部流动以及溶解所述气水界面盐腔上部侧面的盐岩;Step S304, adjusting the pressure of the compressed air so that the pressure of the compressed air and the pressure of the fresh water reach hydraulic balance to form an air-water interface, and the air-water interface is used to prevent the fresh water from flowing to the air-water interface The upper part of the salt cavity flows and dissolves the salt rock on the upper side of the salt cavity at the air-water interface;

步骤S305,所述淡水溶解所述畸形盐腔在所述气水界面下部侧面的盐岩形成卤水,所述卤水通过中心管与中间管形成的环空部分排出地表,将所述卤水输送至卤水厂;Step S305, the fresh water dissolves the salt rock at the lower side of the air-water interface in the deformed salt chamber to form brine, the brine is discharged to the surface through the annular space formed by the central pipe and the intermediate pipe, and the brine is transported to the brine factory;

步骤S306,再次调节所述压缩空气的压力,以使所述气水界面的高度上升;Step S306, adjusting the pressure of the compressed air again to increase the height of the air-water interface;

步骤S307,将中间管往地面方向提升,以使注入的淡水溶解所述畸形盐腔上部侧面的盐岩;Step S307, lifting the intermediate pipe towards the ground, so that the injected fresh water dissolves the salt rock on the upper side of the deformed salt cavity;

步骤S308,当扩大后的畸形盐腔达到预设范围时,获得改造后的盐腔;Step S308, when the enlarged deformed salt cavity reaches the preset range, obtain the modified salt cavity;

步骤S309,对所述改造后的腔体形状进行声呐测腔,判断所述改造后的腔体是否为预设腔体。Step S309, performing sonar cavity measurement on the modified cavity shape, and judging whether the modified cavity is a preset cavity.

可以理解的是,当形成所述改造后的腔体形状后,可以再次判断是否为预设腔体,进一步确认改造后的腔体是否可用,进一步保证了改造腔体的可用性。It can be understood that after the shape of the modified cavity is formed, it can be judged again whether it is a preset cavity, to further confirm whether the modified cavity is usable, and further ensure the usability of the modified cavity.

本发明实施例提供的一种畸形盐腔改造方法,通过在畸形盐腔改造时使用压缩空气作为气垫,可节省因使用油垫而产生的高昂成本,而且技术上更易于实施,并且通过调节压缩空气的压力,使所述压缩空气的压力与所述淡水的压力达到液压平衡形成气水界面,所述气水界面用于防止所述淡水向所述气水界面盐腔上部流动以及溶解所述气水界面盐腔上部侧面的盐岩,并最终将畸形盐腔改造成预设的盐腔,即具有较高价值的油气储库。同时将采出的卤水输送到工厂,还会产生额外经济效益。并且在改造前后都分别进行声呐测腔,提高了改造腔体的准确性。The embodiment of the present invention provides a method for reconstructing a deformed salt cavity. By using compressed air as an air cushion during the reconstruction of a deformed salt cavity, the high cost caused by the use of an oil cushion can be saved, and it is technically easier to implement. The pressure of the air, so that the pressure of the compressed air and the pressure of the fresh water reach a hydraulic balance to form an air-water interface, and the air-water interface is used to prevent the fresh water from flowing to the upper part of the air-water interface salt chamber and dissolve the The salt rock on the upper side of the salt cavern at the gas-water interface, and finally transform the deformed salt cavern into the preset salt cavern, that is, a high-value oil and gas reservoir. At the same time, the produced brine is transported to the factory, which will also generate additional economic benefits. And before and after the transformation, the sonar cavity measurement is carried out separately, which improves the accuracy of the transformation cavity.

需要说明的是,本说明书中的各个实施例均采用递进的方式描述,每个实施例重点说明的都是与其他实施例的不同之处,各个实施例之间相同相似的部分互相参见即可。It should be noted that each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. For the same and similar parts in each embodiment, refer to each other, that is, Can.

在本申请所提供的几个实施例中,应该理解到,所揭露的方法,也可以通过其它的方式实现。以上所描述的装置实施例仅仅是示意性的,例如,附图中的流程图和框图显示了根据本发明的多个实施例的装置、方法和计算机程序产品的可能实现的体系架构、功能和操作。在这点上,流程图或框图中的每个方框可以代表一个模块、程序段或代码的一部分,所述模块、程序段或代码的一部分包含一个或多个用于实现规定的逻辑功能的可执行指令。也应当注意,在有些作为替换的实现方式中,方框中所标注的功能也可以以不同于附图中所标注的顺序发生。例如,两个连续的方框实际上可以基本并行地执行,它们有时也可以按相反的顺序执行,这依所涉及的功能而定。也要注意的是,框图和/或流程图中的每个方框、以及框图和/或流程图中的方框的组合,可以用执行规定的功能或动作的专用的基于硬件的系统来实现,或者可以用专用硬件与计算机指令的组合来实现。In the several embodiments provided in this application, it should be understood that the disclosed method may also be implemented in other ways. The device embodiments described above are only illustrative. For example, the flowcharts and block diagrams in the accompanying drawings show the architecture, functions and possible implementations of devices, methods and computer program products according to multiple embodiments of the present invention. operate. In this regard, each block in a flowchart or block diagram may represent a module, program segment, or part of code that includes one or more Executable instructions. It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks in succession may, in fact, be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. It should also be noted that each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by a dedicated hardware-based system that performs the specified function or action , or may be implemented by a combination of dedicated hardware and computer instructions.

另外,在本发明各个实施例中的各功能模块可以集成在一起形成一个独立的部分,也可以是各个模块单独存在,也可以两个或两个以上模块集成形成一个独立的部分。In addition, each functional module in each embodiment of the present invention can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

所述功能如果以软件功能模块的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes. . It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。应注意到:相似的标号和字母在下面的附图中表示类似项,因此,一旦某一项在一个附图中被定义,则在随后的附图中不需要对其进行进一步定义和解释。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention. It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应所述以权利要求的保护范围为准。The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. a kind of lopsided salt chamber remodeling method, it is characterised in that methods described includes:
Compressed air is injected into lopsided salt intracavity portion by sleeve pipe;
Fresh water is injected into the lopsided salt bottom of chamber portion by central canal;
The pressure of the compressed air is adjusted, so that the pressure of the compressed air reaches hydro-cushion with the pressure of the fresh water Gas-water interface is formed, the gas-water interface is used to prevent the fresh water to the gas-water interface salt chamber upper flow and dissolving institute State the rock salt of gas-water interface salt chamber upper side;
Described in the fresh water dissolution, lopsided salt chamber is located at the rock salt of the gas-water interface lower side, so that the lopsided salt chamber exists The increasing radius of the gas-water interface lower side, when the lopsided salt chamber after expansion reaches preset range, obtain improved Salt chamber.
2. method according to claim 1, it is characterised in that before the pressure of the compressed air is adjusted, the side Method also includes:
The pressure of the compressed air is obtained by ground air compressor.
3. method according to claim 1, it is characterised in that lopsided salt chamber is in air water circle described in the fresh water dissolution The rock salt of face lower side, including:
Described in the fresh water dissolution, lopsided salt chamber forms salt in the rock salt of the gas-water interface lower side, and the salt passes through Central canal discharges earth's surface with the annular section that intervalve is formed.
4. method according to claim 3, it is characterised in that the salt is passed through into central canal and centre is tubular described Into annular section discharge earth's surface after, methods described also includes:
By the brine transportation to salt factory.
5. method according to claim 1, it is characterised in that adjusting the amount and pressure of the compressed air, so that institute After the pressure of the pressure and the fresh water of stating compressed air reaches hydro-cushion formation gas-water interface, methods described also includes:
The pressure of the compressed air is adjusted again, so that the height of the gas-water interface rises.
6. method according to claim 5, it is characterised in that after the pressure for adjusting the compressed air again, institute Stating method also includes:
Intervalve is lifted toward ground direction, so that the rock salt of lopsided salt chamber upper side described in the fresh water dissolution of injection.
7. method according to claim 1, it is characterised in that compressed air is injected into inside cavity by sleeve pipe described Before, methods described also includes:
Sonar is carried out to the lopsided salt chamber and surveys chamber, obtain the Global shape feature in the lopsided salt chamber.
8. method according to claim 7, it is characterised in that the Global shape feature includes the three of the lopsided salt chamber Dimension form, the corresponding size in each position and depth.
9. method according to claim 1, it is characterised in that obtain improved cavity described, methods described is also wrapped Include:
Sonar is carried out to the improved cavity geometry and surveys chamber, judge whether the improved cavity is default cavity.
10. method according to claim 3, it is characterised in that reach default model in lopsided salt chamber after expanding When enclosing, before obtaining improved salt chamber, methods described also includes:
The amount of the salt by discharging in ground acquisition, judges whether the lopsided salt chamber reaches preset range.
CN201610948066.2A 2016-10-26 2016-10-26 Transformation method for irregular salt cavern Pending CN106523029A (en)

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