CN206309340U - A kind of chemical sand control is with sand and solid sand evaluation experimental device - Google Patents
A kind of chemical sand control is with sand and solid sand evaluation experimental device Download PDFInfo
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Abstract
本实用新型属于石油化工技术领域，具体而言，涉及一种化学防砂配砂及固砂评价实验装置。该装置包括配砂装置、注砂装置、固砂装置和测评装置。配砂装置、注砂装置、固砂装置和测评装置依次相连。配砂装置包括树脂储罐、树脂辅助剂储罐、固化剂储罐、固化剂辅助剂储罐、第一调节阀、第二调节阀、第三调节阀、第四调节阀、平流泵、第一截止阀和混合釜；注砂装置包括涂敷砂注入管线和携砂液注入管线。固砂装置包括氮气瓶、第七调节阀和固砂模型；测评装置包括进液管线、排液管线和生产流体储罐。实现了对现场化学防砂施工工艺从配砂、注砂、固砂到固砂质量测评整个工艺流程的室内实验模拟，通过实验优选出与出砂层匹配度最佳的涂敷砂配置方案。
The utility model belongs to the technical field of petrochemical industry, in particular to a chemical sand control sand mixing and sand fixing evaluation experimental device. The device includes a sand mixing device, a sand injection device, a sand fixing device and an evaluation device. The sand mixing device, sand injection device, sand fixing device and evaluation device are connected in sequence. The sand mixing device includes a resin storage tank, a resin auxiliary agent storage tank, a curing agent storage tank, a curing agent auxiliary agent storage tank, a first regulating valve, a second regulating valve, a third regulating valve, a fourth regulating valve, an advection pump, a A shut-off valve and a mixing tank; the sand injection device includes a coating sand injection pipeline and a sand-carrying liquid injection pipeline. The sand fixing device includes a nitrogen cylinder, the seventh regulating valve and a sand fixing model; the evaluation device includes a liquid inlet pipeline, a liquid discharge pipeline and a production fluid storage tank. The indoor experimental simulation of the entire technological process of the on-site chemical sand control construction process from sand preparation, sand injection, sand consolidation to sand consolidation quality evaluation has been realized, and the coating sand configuration scheme with the best matching degree with the sand production layer has been selected through experiments.
Description
技术领域technical field
本实用新型涉及一种化学防砂配砂及固砂评价实验装置，属于石油化工技术领域。The utility model relates to a chemical sand control sand mixing and sand fixing evaluation experimental device, which belongs to the technical field of petrochemical industry.
背景技术Background technique
我国油气储集层中砂岩占有很大比例，经过多年勘探与开发，随着开采时间的延长，油井吞吐轮次增加、地层压力下降、地层亏空大、油井出砂也越来越严重，不仅影响油井的正常生产，还会造成设备的损坏和环境的污染，增加生产成本，因此必须采用防砂技术进行补救。Sandstone accounts for a large proportion of oil and gas reservoirs in my country. After years of exploration and development, with the prolongation of production time, the number of oil well huff and puff increases, formation pressure decreases, formation deficit is large, and sand production from oil wells is becoming more and more serious, which not only affects The normal production of oil wells will also cause equipment damage and environmental pollution, which will increase production costs, so sand control technology must be used for remediation.
但目前能对化学防砂配砂固砂工艺进行模拟或评价的室内装置较少，或功能单一，不能连续反映从树脂涂敷砂的制备和注入到人工井壁的形成、生产过程的模拟，再到各种影响因素作用下防砂配砂固砂效果的测评，最终通过实验优选、验证最优涂敷砂配制方案的整个流程。However, at present, there are few indoor devices that can simulate or evaluate the chemical sand control and sand consolidation process, or the functions are single, and cannot continuously reflect the simulation of the production process from the preparation and injection of resin-coated sand to the formation of artificial well wall, and then From the evaluation of the effect of sand control and sand consolidation under the action of various influencing factors, the entire process of optimizing and verifying the optimal coating sand preparation plan is finally carried out through experiments.
因此，在化学防砂配砂固砂的室内研究中迫切需要一种结构简单，使用方便的实验仪器装置，能模拟现场施工工艺的整个流程，并能对化学防砂配砂固砂的结果进行评价，验证最优涂敷砂配置方案。Therefore, in the indoor research of chemical sand control and sand consolidation, there is an urgent need for an experimental instrument device with simple structure and convenient use, which can simulate the entire process of on-site construction technology, and can evaluate the results of chemical sand control and sand consolidation. Verify the optimal coated sand configuration scheme.
实用新型内容Utility model content
本实用新型提供了一种化学防砂配砂及固砂评价实验装置，其目的在于，解决现有技术中存在的上述问题。The utility model provides a chemical sand control sand mixing and sand fixing evaluation experimental device, which aims to solve the above-mentioned problems existing in the prior art.
本实用新型的技术方案如下：The technical scheme of the utility model is as follows:
本实用新型提供的化学防砂配砂及固砂评价实验装置包括配砂装置、注砂装置、固砂装置和测评装置，配砂装置、注砂装置、固砂装置和测评装置依次相连。The chemical sand control sand mixing and sand fixing evaluation experimental device provided by the utility model includes a sand mixing device, a sand injection device, a sand fixing device and an evaluation device, and the sand mixing device, the sand injection device, the sand fixing device and the evaluation device are connected in sequence.
在本实用新型实施例中，上述配砂装置包括树脂储罐、树脂辅助剂储罐、固化剂储罐、固化剂辅助剂储罐、第一调节阀、第二调节阀、第三调节阀、第四调节阀、平流泵、第一截止阀和混合釜；In the embodiment of the present utility model, the above-mentioned sand mixing device includes a resin storage tank, a resin auxiliary agent storage tank, a curing agent storage tank, a curing agent auxiliary agent storage tank, a first regulating valve, a second regulating valve, a third regulating valve, Fourth regulating valve, advection pump, first shut-off valve and mixing kettle;
树脂储罐、树脂辅助剂储罐、固化剂储罐和固化剂辅助剂储罐并列连接至平流泵，平流泵又通过第一截止阀和混合釜相连；The resin storage tank, the resin auxiliary agent storage tank, the curing agent storage tank and the curing agent auxiliary agent storage tank are connected in parallel to the advection pump, and the advection pump is connected to the mixing tank through the first cut-off valve;
树脂储罐、树脂辅助剂储罐、固化剂储罐和固化剂辅助剂储罐上分别设有第一调节阀、第二调节阀、第三调节阀和第四调节阀。The resin storage tank, the resin auxiliary agent storage tank, the curing agent storage tank and the curing agent auxiliary agent storage tank are respectively provided with a first regulating valve, a second regulating valve, a third regulating valve and a fourth regulating valve.
在本实用新型实施例中，上述混合釜包括釜盖、釜体、转动轴、搅拌叶片、电机、波轮搅拌机；In the embodiment of the utility model, the above-mentioned mixing kettle includes a kettle cover, a kettle body, a rotating shaft, a stirring blade, a motor, and a pulsator mixer;
釜盖和釜体固定连接，转动轴一端和釜体相连，转动轴另一端穿过釜盖和电机相连，转动轴上设有搅拌叶片，波轮搅拌机和釜体相连；The kettle cover is fixedly connected to the kettle body, one end of the rotating shaft is connected to the kettle body, the other end of the rotating shaft passes through the kettle cover and is connected to the motor, the rotating shaft is provided with stirring blades, and the pulsator mixer is connected to the kettle body;
釜体上设有第一加热层、树脂入口、固化剂入口、混合涂敷砂出口。The kettle body is provided with a first heating layer, a resin inlet, a curing agent inlet, and a mixing and coating sand outlet.
在本实用新型实施例中，上述转动轴上还设有可拆卸的隔板，该隔板将釜体内腔分为两个独立的腔室，一个腔室上设有树脂入口，另一个腔室上设有固化剂入口。In the embodiment of the utility model, the above-mentioned rotating shaft is also provided with a detachable partition, which divides the inner cavity of the kettle into two independent chambers, one chamber is provided with a resin inlet, and the other chamber There is a curing agent inlet on it.
在本实用新型实施例中，上述注砂装置包括涂敷砂注入管线和携砂液注入管线；In an embodiment of the present utility model, the above-mentioned sand injection device includes a coating sand injection pipeline and a sand-carrying liquid injection pipeline;
涂敷砂注入管线一端和混合釜相连，另一端和固砂装置相连，该涂敷砂注入管线在靠近混合釜的一端依次设有泥浆泵和第二截止阀；One end of the coated sand injection pipeline is connected to the mixing tank, and the other end is connected to the sand fixing device. The coated sand injection pipeline is provided with a mud pump and a second stop valve in sequence at the end close to the mixing tank;
携砂液注入管线一端和混合釜相连，另一端和固砂装置相连，该携砂液注入管线在靠近混合釜的一端依次设有第五调节阀、携砂液储罐、第三截止阀和第一滤砂网。One end of the sand-carrying liquid injection pipeline is connected to the mixing kettle, and the other end is connected to the sand-fixing device. The sand-carrying liquid injection pipeline is provided with a fifth regulating valve, a sand-carrying liquid storage tank, a third stop valve and First sand filter.
在本实用新型实施例中，上述固砂装置包括氮气瓶、第六调节阀和固砂模型，固砂模型和氮气瓶相连，氮气瓶上设有第六调节阀。In the embodiment of the present utility model, the above-mentioned sand-fixing device includes a nitrogen bottle, a sixth regulating valve and a sand-fixing model, the sand-fixing model is connected to the nitrogen bottle, and the nitrogen bottle is provided with a sixth regulating valve.
在本实用新型实施例中，上述固砂模型包括外筒体、内筒体、试验管件、出口端盖和入口端盖，内筒体和外筒体固定连接，且形成第一空腔，内筒体中设有第二空腔，第二空腔内设有试验管件，第二空腔一端设有出口端盖，出口端盖和相邻内筒体固定连接，第二空腔另一端设有入口端盖，入口端盖和相邻内筒体固定连接；In the embodiment of the utility model, the above-mentioned sand consolidation model includes an outer cylinder body, an inner cylinder body, a test pipe fitting, an outlet end cover and an inlet end cover, and the inner cylinder body and the outer cylinder body are fixedly connected to form a first cavity. The cylinder body is provided with a second cavity, and a test pipe fitting is provided in the second cavity, and an outlet end cover is provided at one end of the second cavity, and the outlet end cover is fixedly connected with the adjacent inner cylinder body, and the other end of the second cavity is provided with a There is an inlet end cover, and the inlet end cover is fixedly connected with the adjacent inner cylinder;
入口端盖上设有砂浆入口，砂浆入口和第一空腔连通，该入口端盖和试验管件之间设有密封圈；A mortar inlet is provided on the inlet end cover, and the mortar inlet communicates with the first cavity, and a sealing ring is provided between the inlet end cover and the test pipe fitting;
出口端盖上设有生产流体出口和携砂液出口，生产流体出口和试验管件连通，携砂液出口和第一空腔连通，且该携砂液出口处设有第二滤砂网；The outlet end cover is provided with a production fluid outlet and a sand-carrying liquid outlet, the production fluid outlet is connected to the test pipe, the sand-carrying liquid outlet is connected to the first cavity, and the sand-carrying liquid outlet is provided with a second sand filter screen;
外筒体和第一空腔相接的一侧上设有胶层，远离的一侧上依次设有第二加热层、保温层、保护外壳和角度调节器、温度传感器和压力传感器；A glue layer is provided on the side where the outer cylinder body meets the first cavity, and a second heating layer, an insulation layer, a protective shell, an angle adjuster, a temperature sensor and a pressure sensor are sequentially provided on the side away from it;
外筒体上还设有至少一个生产流体入口。The outer cylinder is also provided with at least one production fluid inlet.
在本实用新型实施例中，上述测评装置包括进液管线、排液管线和生产流体储罐，生产流体储罐上设有进液管线和排液管线；In the embodiment of the utility model, the above-mentioned evaluation device includes a liquid inlet pipeline, a liquid discharge pipeline and a production fluid storage tank, and the production fluid storage tank is provided with a liquid inlet pipeline and a liquid discharge pipeline;
进液管线一端和生产流体储罐相连，另一端和固砂装置上生产流体入口相连，进液管线靠近生产流体储罐的一端依次设有输油泵、第七调节阀和第一流量计；One end of the liquid inlet pipeline is connected to the production fluid storage tank, and the other end is connected to the production fluid inlet of the sand fixing device. The end of the liquid inlet pipeline close to the production fluid storage tank is provided with an oil delivery pump, a seventh regulating valve and a first flowmeter in sequence;
排液管线一端和生产流体储罐相连，另一端和固砂装置上生产流体出口相连，排液管线靠近固砂装置的一端依次连有取样阀、第四截止阀、第三滤砂网和第二流量计。One end of the discharge pipeline is connected to the production fluid storage tank, and the other end is connected to the production fluid outlet on the sand fixing device. Two flow meters.
在本实用新型实施例中，上述测评装置可对固砂质量进行评价。In the embodiment of the present utility model, the above-mentioned evaluation device can evaluate the quality of sand consolidation.
在本实用新型实施例中，上述固定连接为螺栓连接。In the embodiment of the utility model, the above-mentioned fixed connection is a bolt connection.
本实用新型的有益效果为：配砂装置可配备不同方案的涂敷砂，注砂装置将配好的涂敷砂注入固砂模型后，调节固砂模型的角度、更换固砂模型内的试验管件、控制固砂模型内的温度、压力，从而真实的模拟化学防砂配砂固砂的整个工艺过程，测评装置可对化学固结体的形成过程、生产时渗透率和防砂效果进行评价。实现了对现场化学防砂配砂及固砂施工工艺从配砂、注砂、固砂到固砂质量测评整个工艺流程的室内实验模拟，此外，通过实验可优选出与出砂层匹配度最高的涂敷砂配置方案，对现场施工提供了可靠的理论依据。The beneficial effects of the utility model are: the sand mixing device can be equipped with different schemes of coated sand, and the sand injection device injects the prepared coated sand into the sand-fixing model, adjusts the angle of the sand-fixing model, and replaces the test in the sand-fixing model. Pipe fittings, control the temperature and pressure in the sand consolidation model, so as to truly simulate the entire process of chemical sand control and sand consolidation. The evaluation device can evaluate the formation process of chemical consolidation, the permeability during production and the sand control effect. Realized the indoor experimental simulation of the on-site chemical sand control sand mixing and sand fixing construction process from sand mixing, sand injection, sand fixing to sand fixing quality evaluation. In addition, through the experiment, the best matching degree with the sand layer can be selected The coating sand configuration scheme provides a reliable theoretical basis for on-site construction.
附图说明Description of drawings
为了更清楚地说明本实用新型实施方式的技术方案，下面将对实施方式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实用新型的某些实施例，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 more clearly illustrate the technical solutions of the embodiments of the present invention, the following drawings will be briefly introduced in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained according to these drawings without creative work.
图1本实用新型提供的化学防砂配砂及固砂评价实验装置结构图；Fig. 1 structure diagram of chemical sand control sand matching and sand fixing evaluation experimental device provided by the utility model;
图2本实用新型提供的混合釜结构图；The structure diagram of the mixing kettle provided by the utility model of Fig. 2;
图3本实用新型提供的固砂模型结构图；The structural diagram of the sand-fixing model provided by the utility model of Fig. 3;
图中所示：100-化学防砂配砂及固砂评价实验装置；40-配砂装置；50-注砂装置；60-固砂装置；70-测评装置；1-树脂储罐；2-树脂辅助剂储罐；3-固化剂储罐；4-固化剂辅助剂储罐；5-第一调节阀；6-第二调节阀；7-第三调节阀；8-第四调节阀；9-平流泵；10-第一截止阀；11-混合釜；110-釜盖；111-第一加热层；112-釜体；113-树脂入口；114-转动轴；115-固化剂入口；116-搅拌叶片；117-混合涂敷砂出口；118-隔板；119-波轮搅拌机；12-携砂液注入管线；13-涂敷砂注入管线；14-泥浆泵；15-第二截止阀；16-第五调节阀；17-携砂液储罐；18-第三截止阀；19-第一滤砂网；20-氮气瓶；21-第六调节阀；22-固砂模型；220-外筒体；2200-胶层；2201-第二加热层；2202-保温层；2203-保护外壳；2204-角度调节器；2205-生产流体入口；221-内筒体；222-试验管件；223-入口端盖；2230-砂浆入口；224-出口端盖；2240-生产流体出口；2241-携砂液出口；225-密封圈；226-第三滤砂网；227-第一空腔；228-第二空腔；23-温度压力传感器；230-温度传感器；231-压力传感器；24-取样阀；25-第四截止阀；26-第三滤砂网；27-第二流量计；28-第一流量计；29-第七调节阀；30-输油泵；31-进液管线；32-排液管线；33-生产流体储罐；34-计算机；35-电机；36-螺栓。As shown in the figure: 100-chemical sand control sand mixing and sand fixing evaluation experimental device; 40-sand mixing device; 50-sand injection device; 60-sand fixing device; 70-evaluation device; 1-resin storage tank; 2-resin Auxiliary agent storage tank; 3-curing agent storage tank; 4-curing agent auxiliary agent storage tank; 5-first regulating valve; 6-second regulating valve; 7-third regulating valve; 8-fourth regulating valve; 9 -Convection pump; 10-first cut-off valve; 11-mixing kettle; 110-kettle cover; 111-first heating layer; 112-kettle body; -stirring blade; 117-export of mixed coated sand; 118-baffle; 119-pulsator agitator; 12-sand carrying liquid injection pipeline; 13-coated sand injection pipeline; 14-mud pump; 15-second stop valve ;16-fifth regulating valve; 17-carrying sand liquid storage tank; 18-third stop valve; 19-first sand filter; 20-nitrogen cylinder; 21-sixth regulating valve; -outer cylinder; 2200-adhesive layer; 2201-second heating layer; 2202-insulation layer; 2203-protective shell; 2204-angle regulator; 2205-production fluid inlet; 221-inner cylinder; 223-inlet end cover; 2230-mortar inlet; 224-exit end cover; 2240-production fluid outlet; 2241-sand carrying liquid outlet; 225-sealing ring; 226-third sand filter screen; 228-the second cavity; 23-temperature and pressure sensor; 230-temperature sensor; 231-pressure sensor; 24-sampling valve; 25-the fourth shut-off valve; 28-first flow meter; 29-seventh regulating valve; 30-oil pump; 31-inlet pipeline; 32-discharge pipeline; 33-production fluid storage tank; 34-computer; 35-motor; 36-bolt.
具体实施方式detailed description
下面结合附图和实施例对本实用新型进一步说明。Below in conjunction with accompanying drawing and embodiment the utility model is further described.
为使本实用新型实施方式的目的、技术方案和优点更加清楚，下面将结合本实用新型实施方式中的附图，对本实用新型实施方式中的技术方案进行清楚、完整地描述，显然，所描述的实施方式是本实用新型一部分实施方式，而不是全部的实施方式。因此，以下对在附图中提供的本实用新型的实施方式的详细描述并非旨在限制要求保护的本实用新型的范围，而是仅仅表示本实用新型的选定实施方式。基于本实用新型中的实施方式，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施方式，都属于本实用新型保护的范围。In order to make the purposes, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments described above are some of the embodiments of the present utility model, but not all of them. Therefore, 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 implementation manners in the present utility model, all other implementation manners obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present utility model.
在本实用新型的描述中，需要理解的是，指示方位或位置关系的术语为基于附图所示的方位或位置关系，仅是为了便于描述本实用新型和简化描述，而不是指示或暗示所指的设备或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本实用新型的限制。In the description of the present utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying the Means that a device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the invention.
在本实用新型中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本实用新型中的具体含义。In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection, or integration; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.
在本实用新型中，除非另有明确的规定和限定，第一特征在第二特征之上或之下可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征之上、上方和上面包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征之下、下方和下面包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。In the present invention, unless otherwise specified and limited, the first feature above or below the second feature may include that the first and second features are in direct contact, and may also include that the first and second features are not in direct contact. Rather, through additional characteristic contact between them. Moreover, the first feature on, above and above the second feature includes the first feature directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. The first feature being below, below and below the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.
实施例：Example:
如图1，本实施例提供了一种化学防砂配砂及固砂评价实验装置100，包括配砂装置40、注砂装置50、固砂装置60和测评装置70，配砂装置40、注砂装置50、固砂装置60和测评装置70依次相连。As shown in Figure 1, the present embodiment provides a chemical sand control sand mixing and sand fixing evaluation experimental device 100, including a sand mixing device 40, a sand injection device 50, a sand fixing device 60 and an evaluation device 70, a sand mixing device 40, a sand injection device The device 50, the sand fixing device 60 and the evaluation device 70 are connected in sequence.
配砂装置40包括树脂储罐1、树脂辅助剂储罐2、固化剂储罐3、固化剂辅助剂储罐4、第一调节阀5、第二调节阀6、第三调节阀7、第四调节阀8、平流泵9、第一截止阀10和混合釜11。树脂储罐1、树脂辅助剂储罐2、固化剂储罐3和固化剂辅助剂储罐4并列连接至平流泵9，平流泵9又通过第一截止阀10和混合釜11相连。树脂储罐1、树脂辅助剂储罐2、固化剂储罐3和固化剂辅助剂储罐4上分别设有第一调节阀5、第二调节阀6、第三调节阀7和第四调节阀8。The sand mixing device 40 includes a resin storage tank 1, a resin auxiliary agent storage tank 2, a curing agent storage tank 3, a curing agent auxiliary agent storage tank 4, a first regulating valve 5, a second regulating valve 6, a third regulating valve 7, a Four regulating valves 8, advection pump 9, first shut-off valve 10 and mixing kettle 11. The resin storage tank 1 , the resin auxiliary storage tank 2 , the curing agent storage tank 3 and the curing agent auxiliary storage tank 4 are connected in parallel to the advection pump 9 , and the advection pump 9 is connected to the mixing tank 11 through the first cut-off valve 10 . Resin storage tank 1, resin auxiliary agent storage tank 2, curing agent storage tank 3 and curing agent auxiliary agent storage tank 4 are respectively provided with a first regulating valve 5, a second regulating valve 6, a third regulating valve 7 and a fourth regulating valve. valve 8.
如图2，混合釜11包括釜盖110、釜体112、转动轴114、搅拌叶片116、电机35、波轮搅拌机119。釜盖110和釜体112固定连接，转动轴114一端和釜体112相连，另一端通过釜盖110和电机35相连，转动轴114上设有搅拌叶片116和可拆卸的隔板118，隔板118将釜体112内腔分为两个独立的腔室，一个腔室上设有树脂入口113、另一个腔室上设有固化剂入口115，波轮搅拌机119和釜体112相连，釜体112上设有第一加热层111和混合涂敷砂出口117。As shown in FIG. 2 , the mixing kettle 11 includes a kettle cover 110 , a kettle body 112 , a rotating shaft 114 , a stirring blade 116 , a motor 35 , and a pulsator mixer 119 . The kettle cover 110 is fixedly connected with the kettle body 112, one end of the rotating shaft 114 is connected with the kettle body 112, and the other end is connected with the motor 35 through the kettle cover 110, and the rotating shaft 114 is provided with a stirring blade 116 and a detachable partition 118, the partition 118 divides the inner cavity of the kettle body 112 into two independent chambers, one chamber is provided with a resin inlet 113, and the other chamber is provided with a curing agent inlet 115, and the impeller mixer 119 is connected with the kettle body 112, and the kettle body 112 is provided with a first heating layer 111 and a mixed coated sand outlet 117 .
注砂装置50包括涂敷砂注入管线13和携砂液注入管线12。涂敷砂注入管线13一端和混合釜11上的混合涂敷砂出口117相连，另一端和固砂模型22上的砂浆入口2230相连，该涂敷砂注入管线13在靠近混合釜11的一端依次设有泥浆泵14和第二截止阀15。携砂液注入管线12一端和混合釜11的混合涂敷砂出口117相连，另一端和固砂模型22上的携砂液出口2241相连，该携砂液注入管线12在靠近混合釜11的一端依次设有第五调节阀16、携砂液储罐17、第六调节阀21和第一滤砂网19。The sand injection device 50 includes a coating sand injection pipeline 13 and a sand-carrying liquid injection pipeline 12 . One end of the coated sand injection pipeline 13 is connected to the mixed coated sand outlet 117 on the mixing tank 11, and the other end is connected to the mortar inlet 2230 on the sand fixing model 22. A mud pump 14 and a second stop valve 15 are provided. One end of the sand-carrying fluid injection pipeline 12 is connected to the mixed coating sand outlet 117 of the mixing tank 11, and the other end is connected to the sand-carrying fluid outlet 2241 on the sand-fixing model 22. The sand-carrying fluid injection pipeline 12 is at the end close to the mixing tank 11 A fifth regulating valve 16 , a storage tank 17 for carrying sand fluid, a sixth regulating valve 21 and a first sand filter screen 19 are provided in sequence.
固砂装置60包括氮气瓶20、第七调节阀29和固砂模型22，固砂模型22和氮气瓶20相连，氮气瓶20上设有第七调节阀29。The sand fixing device 60 includes a nitrogen bottle 20 , a seventh regulating valve 29 and a sand fixing model 22 , the sand fixing model 22 is connected to the nitrogen bottle 20 , and the nitrogen bottle 20 is provided with a seventh regulating valve 29 .
如图3，固砂模型22包括外筒体220、内筒体221、试验管件222、出口端盖224和入口端盖223。内筒体221和外筒体220固定连接，且形成第一空腔227，内筒体221中设有第二空腔228，第二空腔228内设有试验管件222，第二空腔228一端设有出口端盖224，出口端盖224和相邻内筒体221固定连接，第二空腔228另一端设有入口端盖223，入口端盖223和相邻内筒体221固定连接。入口端盖223上设有砂浆入口2230，砂浆入口2230穿过内筒体221和第一空腔227连通，该入口端盖223和试验管件222之间设有密封圈225。出口端盖224上设有生产流体出口2240和携砂液出口2241，生产流体出口2240和试验管件222连通，携砂液出口2241和第一空腔227连通，且该携砂液出口2241处设有第二滤砂网。外筒体220和第一空腔227相接的一侧上设有胶层2200，远离的一侧上依次设有第二加热层2201、保温层2202、保护外壳2203和角度调节器2204、温度传感器230和压力传感器231。外筒体220上还设有至少一个生产流体入口2205。As shown in FIG. 3 , the sand consolidation model 22 includes an outer cylinder 220 , an inner cylinder 221 , a test pipe 222 , an outlet end cover 224 and an inlet end cover 223 . The inner cylinder 221 and the outer cylinder 220 are fixedly connected to form a first cavity 227, the inner cylinder 221 is provided with a second cavity 228, and the second cavity 228 is provided with a test tube 222, the second cavity 228 One end is provided with an outlet end cover 224, which is fixedly connected to the adjacent inner cylinder 221, and the other end of the second cavity 228 is provided with an inlet end cover 223, which is fixedly connected to the adjacent inner cylinder 221. A mortar inlet 2230 is provided on the inlet end cover 223 , and the mortar inlet 2230 communicates with the first cavity 227 through the inner cylinder 221 , and a sealing ring 225 is provided between the inlet end cover 223 and the test pipe 222 . The outlet end cover 224 is provided with a production fluid outlet 2240 and a sand-carrying liquid outlet 2241, the production fluid outlet 2240 communicates with the test pipe fitting 222, the sand-carrying liquid outlet 2241 communicates with the first cavity 227, and the sand-carrying liquid outlet 2241 is provided There is a second sand filter. An adhesive layer 2200 is provided on the side where the outer cylinder 220 and the first cavity 227 meet, and a second heating layer 2201, a thermal insulation layer 2202, a protective shell 2203, an angle regulator 2204, a temperature sensor 230 and pressure sensor 231. At least one production fluid inlet 2205 is also provided on the outer cylinder 220 .
测评装置70包括进液管线31、排液管线32和生产流体储罐33。生产流体储罐33上设有进液管线31和排液管线32。进液管线31一端和生产流体储罐33相连，另一端和固砂模型22上生产流体入口2205相连，进液管线31靠近生产流体储罐33的一端依次设有输油泵30、第七调节阀29和第一流量计28。排液管线32一端和生产流体储罐33相连，另一端和固砂模型22上生产流体入口2240相连，排液管线32靠近固砂装置60的一端依次连有取样阀24、第四截止阀25、第三滤砂网26和第二流量计27。The evaluation device 70 includes a liquid inlet line 31 , a liquid discharge line 32 and a production fluid storage tank 33 . The production fluid storage tank 33 is provided with a liquid inlet line 31 and a liquid discharge line 32 . One end of the liquid inlet pipeline 31 is connected to the production fluid storage tank 33, and the other end is connected to the production fluid inlet 2205 on the sand consolidation model 22. The end of the liquid inlet pipeline 31 close to the production fluid storage tank 33 is provided with an oil delivery pump 30 and a seventh regulating valve in sequence. 29 and the first flow meter 28. One end of the drain line 32 is connected to the production fluid storage tank 33, and the other end is connected to the production fluid inlet 2240 on the sand-fixing model 22. The end of the drain line 32 close to the sand-fixing device 60 is connected to a sampling valve 24 and a fourth shut-off valve 25 in turn. , The third sand screen 26 and the second flowmeter 27.
在本实施例中固定连接为螺栓36连接。In this embodiment, the fixed connection is a bolt 36 connection.
本实施例提供的化学防砂注砂及固砂评价实验装置100的工作原理及操作方法如下：The working principle and operation method of the chemical sand control sand injection and sand consolidation evaluation experimental device 100 provided in this embodiment are as follows:
步骤1：向树脂储罐1、树脂辅助剂储罐2、固化剂储罐3、固化剂辅助剂储罐4储罐和生产流体储罐33内注入相应液体，安装好固砂模型22和混合釜11的隔板118，通过角度调节器2204调节固砂模型22到合理角度，通过氮气瓶20给固砂模型22加压到实验所需压力，通过第一加热层111和第二加热层2201分别将混合釜11和固砂模型22预热到所需温度。Step 1: Inject the corresponding liquid into the resin storage tank 1, the resin auxiliary agent storage tank 2, the curing agent storage tank 3, the curing agent auxiliary agent storage tank 4 and the production fluid storage tank 33, install the sand consolidation model 22 and the mixing The partition 118 of the kettle 11 adjusts the sand-fixing model 22 to a reasonable angle through the angle regulator 2204, pressurizes the sand-fixing model 22 to the pressure required for the experiment through the nitrogen cylinder 20, passes through the first heating layer 111 and the second heating layer 2201 Preheat the mixing tank 11 and the sand consolidation model 22 to the required temperature respectively.
步骤2：向混合釜11的两个腔室内加入所需干净砂砾，打开平流泵9和第一截止阀10，打开树脂(根据需要选择环氧树脂、酚醛树脂、脲醛树脂等)储罐1、树脂辅助剂(如偶联剂、补强剂等)储罐2相连的第一调节阀5和第二调节阀6，将树脂和树脂辅助剂通过树脂入口113按配比泵入混合釜11的一个腔室。Step 2: Add required clean grit into the two chambers of the mixing kettle 11, open the advection pump 9 and the first shut-off valve 10, and open the resin (select epoxy resin, phenolic resin, urea-formaldehyde resin, etc. as required) storage tank 1, The first regulating valve 5 and the second regulating valve 6 connected to the storage tank 2 of resin auxiliary agent (such as coupling agent, reinforcing agent, etc.) pump the resin and resin auxiliary agent into one of the mixing tank 11 through the resin inlet 113 according to the ratio. Chamber.
步骤3：关闭步骤2中第一调节阀5和第二调节阀6，打开固化剂储罐3和固化剂辅助剂(如促进剂等)储罐4对应的第三调节阀7和第四调节阀8，将固化剂和固化剂辅助剂通过固化剂入口115按配比泵入混合釜11的另一个腔室后，关闭配砂装置40的所有阀门和平流泵9。Step 3: Close the first regulating valve 5 and the second regulating valve 6 in step 2, open the third regulating valve 7 and the fourth regulating valve corresponding to the curing agent storage tank 3 and the curing agent auxiliary agent (such as accelerator, etc.) storage tank 4 Valve 8, after the curing agent and curing agent auxiliary agent are pumped into another chamber of the mixing tank 11 through the curing agent inlet 115 in proportion, all valves and the flow pump 9 of the sand mixing device 40 are closed.
步骤4：启动电机35，通过转动轴114带动搅拌叶片116旋转，使混合釜11两个腔室内的砂砾、化学剂充分混合并分别形成树脂涂敷砂和固化剂涂敷砂；取下隔板118及搅拌叶片116，打开波轮搅拌机119，使树脂涂敷砂和固化剂涂敷砂在短时间内充分混合。Step 4: Start the motor 35, and drive the stirring blade 116 to rotate through the rotating shaft 114, so that the gravel and chemical agents in the two chambers of the mixing kettle 11 are fully mixed to form resin-coated sand and curing agent-coated sand respectively; remove the partition 118 and stirring blade 116, open the impeller mixer 119, make the resin coated sand and the curing agent coated sand fully mix in a short time.
步骤5：启动涂敷砂注入管线13上的泥浆泵14，打开第二截止阀15、通过砂浆入口2230按配比将混合后的砂浆泵入固砂模型22中，再打开携砂液注入管线12上的第三截止阀18和第五调节阀16，使多余的携砂液从携砂液出口2241经第一滤砂网19简单过滤后重新流入携砂液储罐17循环使用，砂浆注入完成后，关闭注砂装置50的所有阀门和泥浆泵14。Step 5: Start the mud pump 14 on the coated sand injection pipeline 13, open the second stop valve 15, pump the mixed mortar into the sand-fixing model 22 through the mortar inlet 2230 according to the ratio, and then open the sand-carrying liquid injection pipeline 12 The third shut-off valve 18 and the fifth regulating valve 16 on the top make the excess sand-carrying liquid flow from the sand-carrying liquid outlet 2241 through the first sand filter screen 19 to re-flow into the sand-carrying liquid storage tank 17 for recycling, and the mortar injection is completed Finally, close all valves of the sand injection device 50 and the mud pump 14.
步骤6：待砂浆固化完成后，打开测评装置70进液管线31上的输油泵30和第七调节阀29，使生产流体储罐33中的生产流体通过固砂模型22上的生产流体入口2205进入到固砂模型22中，然后打开排液管线32上的第四截止阀25，使通过涂敷砂固结体后的生产流体通过生产流体出口2240，经第三滤砂网26进入生产流体储罐33循环利用，也可根据需要打开排液管线32上的取样阀24进行取样分析含砂量(cs)；Step 6: After the mortar is solidified, turn on the oil delivery pump 30 and the seventh regulating valve 29 on the liquid inlet line 31 of the evaluation device 70, so that the production fluid in the production fluid storage tank 33 passes through the production fluid inlet 2205 on the sand consolidation model 22 Enter into the sand consolidation model 22, and then open the fourth shut-off valve 25 on the drain line 32, so that the production fluid passing through the coated sand consolidation body passes through the production fluid outlet 2240, and enters the production fluid through the third sand filter screen 26 The storage tank 33 is recycled, and the sampling valve 24 on the discharge line 32 can also be opened as required to carry out sampling and analysis of the sand content (cs);
式中：M—砂子的质量(g)；ρ—生产流体密度(g/cm3)；V1—生产流体的体积(cm3)；V—样品总体积(cm3)。In the formula: M—mass of sand (g); ρ—density of production fluid (g/cm 3 ); V 1 —volume of production fluid (cm 3 ); V—total volume of sample (cm 3 ).
步骤7：由计算机34采集到的压力传感器231、第一流量计28和第二流量计27的数据，分析固砂模型22中涂敷砂固结体的渗透率(K)；Step 7: Analyze the permeability (K) of the coated sand consolidation body in the sand consolidation model 22 from the data of the pressure sensor 231, the first flowmeter 28 and the second flowmeter 27 collected by the computer 34;
式中：K—涂敷砂固结体渗透率(D)；Q—生产流体流量(ml/s)；μ—生产流体粘度(mPa﹒s)；ΔL—涂敷砂固结体长度(cm)；A—涂敷砂固结体内截面积(cm2)；△P—涂敷砂固结体两端压差(MPa)。In the formula: K—permeability of coated sand consolidation body (D); Q—production fluid flow rate (ml/s); μ—production fluid viscosity (mPa s); ΔL—coated sand consolidation body length (cm ); A—the cross-sectional area of the coated sand consolidation body (cm 2 ); △P—the pressure difference between the two ends of the coated sand consolidation body (MPa).
步骤8：根据渗透率、含沙量对单组涂敷砂固化后的防砂效果进行评价，对多组不同配制方案的涂敷砂固化后的防砂效果进行对比分析，根据温度传感器230和压力传感器231的指示，通过第一加热层111和第二加热层2201可模拟不同地层温度、通过调节氮气瓶20上的第六调节阀21可模拟不同地层压力下，从而达到模拟不同地层温度和地层压力下的储层化学防砂配砂及固砂过程，通过各调节阀，调节注入流体流量，多次实验，直到优选出与储层匹配度最佳的涂敷砂配制方案。Step 8: Evaluate the sand control effect of a single group of coated sand after curing according to the permeability and sand content, and compare and analyze the sand control effect of multiple groups of coated sand with different preparation schemes after curing. According to the temperature sensor 230 and the pressure sensor 231, different formation temperatures can be simulated through the first heating layer 111 and the second heating layer 2201, and different formation pressures can be simulated by adjusting the sixth regulating valve 21 on the nitrogen cylinder 20, so as to simulate different formation temperatures and formation pressures For the chemical sand control sand mixing and sand consolidation process of the reservoir, the injection fluid flow rate is adjusted through various regulating valves, and repeated experiments are carried out until the best matching sand preparation plan for the reservoir is selected.
本实施例提供的化学防砂配砂及固砂评价实验装置的有益效果为：配砂装置可配备不同方案的涂敷砂，注砂装置将配好的涂敷砂注入固砂模型后，调节固砂模型的角度、更换固砂模型内的试验管件、控制固砂模型内的温度、压力，从而真实地模拟化学防砂配砂固砂的整个工艺过程，测评装置可对涂敷砂固结体的形成过程、生产时渗透率和防砂效果进行评价。实现了对现场化学防砂配砂及固砂施工工艺从配砂、注砂、固砂到固砂质量测评整个工艺流程的室内实验模拟，此外，通过实验可优选出与出砂层匹配度最高的涂敷砂配置方案，对现场施工提供了可靠的理论依据。The beneficial effects of the chemical sand control sand mixing and sand fixing evaluation experimental device provided in this example are: the sand mixing device can be equipped with different plans of coated sand, and the sand injection device injects the prepared coated sand into the sand fixing model, and then adjusts the sand fixing method. The angle of the sand model, the replacement of the test pipe fittings in the sand consolidation model, and the control of the temperature and pressure in the sand consolidation model, so as to truly simulate the entire process of chemical sand control and sand consolidation. The formation process, permeability and sand control effect during production are evaluated. Realized the indoor experimental simulation of the on-site chemical sand control sand mixing and sand fixing construction process from sand mixing, sand injection, sand fixing to sand fixing quality evaluation. In addition, through the experiment, the best matching degree with the sand layer can be selected The coating sand configuration scheme provides a reliable theoretical basis for on-site construction.
以上所述，仅是本实用新型的较佳实施例而已，并非对本实用新型作任何形式上的限制，虽然本实用新型已以较佳实施例揭露如上，然而并非用以限定本实用新型，任何熟悉本专业的技术人员，在不脱离本实用新型技术方案范围内，当可利用上述揭示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本实用新型技术方案的内容，依据本实用新型的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本实用新型技术方案的范围内。The above are only preferred embodiments of the present utility model, and do not limit the utility model in any form. Although the utility model has been disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any Those who are familiar with this profession, without departing from the scope of the technical solution of the present utility model, can use the technical content disclosed above to make some changes or modify equivalent embodiments with equivalent changes, but all without departing from the technical solution of the utility model Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model still belong to the scope of the technical solution of the utility model.
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| CN114034565A (en) * | 2021-09-24 | 2022-02-11 | 中国海洋石油集团有限公司 | Online evaluation device and method for sand consolidation effect of chemical sand consolidation agent |
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| CN107462677A (en) * | 2017-08-10 | 2017-12-12 | 中国地质调查局水文地质环境地质调查中心 | Exploitation of gas hydrates function sand prevention testing device and method |
| CN107462677B (en) * | 2017-08-10 | 2024-06-04 | 中国地质调查局水文地质环境地质调查中心 | Sand control test device and method for natural gas hydrate exploitation |
| CN114034565A (en) * | 2021-09-24 | 2022-02-11 | 中国海洋石油集团有限公司 | Online evaluation device and method for sand consolidation effect of chemical sand consolidation agent |
| CN114034565B (en) * | 2021-09-24 | 2023-11-28 | 中国海洋石油集团有限公司 | Online evaluation device and evaluation method for sand fixation effect of chemical sand fixation agent |
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