CN114059969B - A kind of oil casing dosing device - Google Patents

A kind of oil casing dosing device Download PDF

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CN114059969B
CN114059969B CN202210043016.5A CN202210043016A CN114059969B CN 114059969 B CN114059969 B CN 114059969B CN 202210043016 A CN202210043016 A CN 202210043016A CN 114059969 B CN114059969 B CN 114059969B
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oil
pipe
connecting rod
tank
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CN114059969A (en
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张瑞超
许广震
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Xi'an Shanchuan Petroleum Technology Co ltd
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China University of Petroleum Beijing
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B37/00Methods or apparatus for cleaning boreholes or wells
    • E21B37/06Methods or apparatus for cleaning boreholes or wells using chemical means for preventing or limiting, e.g. eliminating, the deposition of paraffins or like substances
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons

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Abstract

本发明公开了一种石油套管加药装置,包括:套管、压油罐、药箱、管道组件以及原油加热器,所述药箱连接至压油罐;压油罐用于将套管的环形空间内的原油抽出至罐内,压油罐侧面通过出油管连接至原油加热器的进油口;所述管道组件包括热油管、混合管和控制管,所述热油管和混合管连接至套管内,热油管的另一端与原油加热器的出油口连接,混合管的另一端与热油管连通。本发明基于将石油套管加药作业和热油洗井作业进行结合提出的套管加药装置,可通过加药装置进行热油循环洗井,热油来源为从环形空间内抽取的原油,不需要借助油车,也无需额外消耗大量其它热油或热载体,同时也无需油井停产,达到管壁除蜡的效果。

Figure 202210043016

The invention discloses a chemical dosing device for an oil casing, comprising: a casing, a pressure oil tank, a medicine box, a pipeline assembly and a crude oil heater, wherein the medicine box is connected to the pressure oil tank; The crude oil in the annular space is extracted into the tank, and the side of the pressure oil tank is connected to the oil inlet of the crude oil heater through the oil outlet pipe; the pipeline assembly includes a hot oil pipe, a mixing pipe and a control pipe, and the hot oil pipe and the mixing pipe are connected. To the casing, the other end of the hot oil pipe is connected with the oil outlet of the crude oil heater, and the other end of the mixing pipe is communicated with the hot oil pipe. The invention is based on the casing dosing device proposed by combining the oil casing dosing operation and the hot oil well flushing operation, and the hot oil circulation well flushing can be carried out through the dosing device, and the hot oil source is the crude oil extracted from the annular space, There is no need to use an oil truck, and there is no need to consume a large amount of other hot oil or heat carrier.

Figure 202210043016

Description

一种石油套管加药装置A kind of oil casing dosing device

技术领域technical field

本发明涉及采油相关技术领域,具体是一种石油套管加药装置。The invention relates to the technical field of oil extraction, in particular to a chemical dosing device for an oil casing.

背景技术Background technique

在原油开采过程中,由于原油物性和生产参数的变化,油管的内壁上易结垢、结蜡,这不仅会对油层造成伤害,降低产能,而且还会增加油井的维护作业频率。因此,通过洗管、加药等物理化学方式进行降粘、除蜡在采油作业中十分重要。In the process of crude oil extraction, due to the changes of crude oil physical properties and production parameters, the inner wall of the oil pipe is prone to scaling and wax formation, which will not only cause damage to the oil layer and reduce production capacity, but also increase the frequency of oil well maintenance operations. Therefore, it is very important to reduce viscosity and remove wax by physical and chemical methods such as pipe washing and dosing.

一般加药处理通过向套管与油管的环形空间内加注除蜡、降粘的药剂,经抽油动力进入油管内,与原油发生反应后除蜡。一般加药需要人工打开套管法兰,直接向套管内一次性灌入大量药剂,药剂集聚在动液面上短时间内未与原油充分反应即被抽油杆抽出地表,不仅浪费还增加了原油杂质量。In general, the dosing treatment is to add wax-removing and viscosity-reducing agents into the annular space between the casing and the oil pipe, enter the oil pipe through the pumping power, and remove the wax after reacting with the crude oil. Generally, dosing needs to manually open the casing flange, and directly pour a large amount of medicine into the casing at one time. The medicine accumulates on the dynamic liquid surface and does not fully react with the crude oil in a short period of time, and then it is drawn out by the sucker rod to the surface, which is not only wasteful but also increased. Crude oil impurities.

热力清蜡则是在药物除蜡的基础上,进行物理手段去除顽固性结蜡层的最常用手段,适用于各种采油方法的油井。一般热力清蜡需要借助油车,用热油或其他热载体循环洗井,将蜡熔化带出井外,需要耗费大量的热油,同时油井在此期间需要停产,影响开采。Thermal wax removal is the most common method to remove stubborn wax deposits by physical means on the basis of drug wax removal, and is suitable for oil wells with various oil recovery methods. Generally, thermal wax removal requires the help of oil trucks, circulating wells with hot oil or other heat carriers, and melting the wax out of the well, which requires a lot of hot oil, and the oil well needs to stop production during this period, which affects the production.

综上,目前对油井内油管进行降粘增产、除蜡的各种方式作业中均存在效率低、损耗大等问题。To sum up, there are problems such as low efficiency and large loss in the various methods of reducing viscosity, increasing production, and removing wax of oil pipes in oil wells.

发明内容SUMMARY OF THE INVENTION

本发明的目的在于提供一种石油套管加药装置,以解决上述背景技术中提出的问题。The purpose of the present invention is to provide a chemical dosing device for petroleum casing, so as to solve the above-mentioned problems in the background art.

为实现上述目的,本发明提供如下技术方案:To achieve the above object, the present invention provides the following technical solutions:

一种石油套管加药装置,包括:压油罐、药箱、驱动装置、管道组件以及原油加热器,所述药箱连接至压油罐;所述压油罐底端通过抽油管连接至套管内原油目标层的动液面以下,压油罐用于将套管的环形空间内的原油抽出至罐内,压油罐侧面通过出油管连接至原油加热器的进油口;所述管道组件包括热油管、混合管和控制管,所述热油管和混合管连接至套管内,热油管的另一端与原油加热器的出油口连接,混合管的另一端与热油管连通,所述控制管连通在热油管上且与混合管管端同轴,所述控制管内设置有用于控制混合管通断并保持热油管为通路状态的控制器。A chemical dosing device for oil casing, comprising: a pressure oil tank, a medicine box, a driving device, a pipeline assembly and a crude oil heater, the medicine box is connected to the pressure oil tank; the bottom end of the oil pressure tank is connected to the oil pressure tank through an oil extraction pipe Below the dynamic liquid level of the crude oil target layer in the casing, the oil pressure tank is used to extract the crude oil in the annular space of the casing into the tank, and the side of the pressure oil tank is connected to the oil inlet of the crude oil heater through the oil outlet pipe; the pipeline The assembly includes a hot oil pipe, a mixing pipe and a control pipe, the hot oil pipe and the mixing pipe are connected to the casing, the other end of the hot oil pipe is connected with the oil outlet of the crude oil heater, and the other end of the mixing pipe is communicated with the hot oil pipe, the The control pipe is communicated with the hot oil pipe and is coaxial with the pipe end of the mixing pipe, and a controller for controlling the on-off of the mixing pipe and keeping the hot oil pipe in the channel state is arranged in the control pipe.

作为本发明进一步的方案:所述压油罐内设置有抽油碗,所述抽油碗顶端固定连接有第一连杆组,抽油碗顶面上设置有与其内部连通出油孔,抽油碗底面设置有进油孔,所述进油孔以及压油罐与抽油管连接处分别设置有上游动阀和下游动阀,所述上游动阀和下游动阀均可上下滑动。As a further solution of the present invention: the oil pressure tank is provided with an oil sucking bowl, the top of the oil sucking bowl is fixedly connected with a first connecting rod group, and the top surface of the oil sucking bowl is provided with an oil outlet hole that communicates with the inside of the oil sucking bowl. The bottom surface of the oil bowl is provided with an oil inlet hole, and the oil inlet hole and the connection between the oil pressure tank and the oil suction pipe are respectively provided with an upstream moving valve and a downstream moving valve, both of which can slide up and down.

作为本发明进一步的方案:所述驱动装置输出端连接有凸轮摆杆机构,所述第一连杆组顶端与凸轮摆杆机构铰接。As a further solution of the present invention, the output end of the driving device is connected with a cam rocker mechanism, and the top end of the first link group is hinged with the cam rocker mechanism.

作为本发明进一步的方案:所述热油管管端至套管底端,所述混合管管端位于靠近动液面下方位置。As a further solution of the present invention, the pipe end of the hot oil pipe is to the bottom end of the casing, and the pipe end of the mixing pipe is located close to the position below the dynamic liquid surface.

作为本发明进一步的方案:所述控制器包括第二连杆组、柱塞和球塞,所述柱塞设置在控制管内并与控制管间密封,柱塞和球塞直径相同,且球塞直径大于混合管管径,球塞上设置有沿热油管轴向的通孔。As a further solution of the present invention: the controller includes a second connecting rod group, a plunger and a ball plug, the plunger is arranged in the control pipe and is sealed with the control pipe, the diameter of the plunger and the ball plug are the same, and the ball plug The diameter is larger than the diameter of the mixing pipe, and the ball plug is provided with a through hole along the axial direction of the hot oil pipe.

作为本发明进一步的方案:所述第二连杆组底端与柱塞连接,顶端连接在定时控制装置上,所述定时控制装置包括固定座、曲柄、滑块和凸轮,所述滑块滑动设置在固定座上,滑块内侧对称设置有两组凸起,凸轮转动安装在固定座上且位于两组凸起之间,凸轮转动过程中能分别与两侧凸起接触,所述曲柄转动连接在固定座另一侧面且与凸轮转轴连接,并在与凸轮转轴间设置单向轴承,曲柄端部连接至与凸轮摆杆机构同步摆动运动的连杆驱动组件。As a further solution of the present invention: the bottom end of the second connecting rod group is connected to the plunger, and the top end is connected to a timing control device, and the timing control device includes a fixed seat, a crank, a slider and a cam, and the slider slides It is arranged on the fixed seat, two sets of protrusions are symmetrically arranged on the inner side of the slider, the cam is rotated and installed on the fixed seat and is located between the two sets of protrusions. It is connected to the other side of the fixed seat and connected to the cam rotating shaft, and a one-way bearing is arranged between the cam rotating shaft and the end of the crank is connected to the connecting rod driving assembly that swings synchronously with the cam rocker mechanism.

作为本发明进一步的方案:所述连杆驱动组件包括驱动杆、连杆和转套,所述转套转动设置在驱动杆上,所述驱动杆与凸轮摆杆组件固定连接,连杆的两端分别与转套和曲柄连接。As a further solution of the present invention: the connecting rod driving assembly includes a driving rod, a connecting rod and a rotating sleeve, the rotating sleeve is rotatably arranged on the driving rod, the driving rod is fixedly connected with the cam swing rod assembly, and two parts of the connecting rod are fixedly connected. The ends are respectively connected with the turning sleeve and the crank.

作为本发明进一步的方案:所述滑块与固定座间具有滑动阻尼。As a further solution of the present invention, a sliding damping is provided between the sliding block and the fixed seat.

作为本发明进一步的方案:所述药箱通过出料管连接加药装置,所述加药装置包括第三连杆组、单向阀、加注管和抽药罐,所述抽药罐内设置活塞,所述活塞与第三连杆组连接,所述第三连杆组连接驱动杆,所述单向阀设置两组,分别设置在出料管和加注管上,所述出料管和加注管分别连接在抽药罐侧面上方,所述加注管连接至压油罐内顶部位置。As a further solution of the present invention: the medicine box is connected to a medicine dosing device through a discharge pipe, and the medicine dosing device includes a third connecting rod group, a one-way valve, a filling pipe and a medicine pumping tank. A piston is provided, the piston is connected with the third connecting rod group, the third connecting rod group is connected with the driving rod, and the one-way valve is provided with two groups, which are respectively arranged on the discharge pipe and the filling pipe. The pipe and the filling pipe are respectively connected above the side of the medicine extraction tank, and the filling pipe is connected to the top position in the oil pressure tank.

作为本发明进一步的方案:所述加注管端头设置微细化喷嘴。As a further solution of the present invention: the end of the filling pipe is provided with a micronizing nozzle.

与现有技术相比,本发明的有益效果是:本发明基于将石油套管加药作业和热油洗井作业进行结合提出的套管加药装置,主要包括以下优点:Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention is based on the casing dosing device proposed by combining the oil casing dosing operation and the hot oil well flushing operation, and mainly includes the following advantages:

1、可通过加药装置进行热油循环洗井,热油来源为从环形空间内抽取的原油,不需要借助油车,也无需额外消耗大量其它热油或热载体,同时也无需油井停产,抽取的原油经加热后送回至油管管端混合,使管内原油升温,从而保持管内处于较高的温度状态,使原油内蜡物质难以析出,达到管壁除蜡的效果;1. Hot oil circulation well flushing can be carried out through the dosing device. The source of hot oil is crude oil extracted from the annular space. It does not need to use oil trucks, nor does it need to consume a large amount of other hot oil or heat carrier, and it does not need to stop production of oil wells. The extracted crude oil is heated and sent back to the end of the oil pipe for mixing, so that the crude oil in the pipe is heated up, so as to keep the temperature in the pipe at a relatively high state, so that the wax substance in the crude oil is difficult to precipitate, and the effect of removing wax from the pipe wall is achieved;

2、可通过加药装置向动液面上自动加药进行化学降粘、除蜡,结合热油洗井作业可显著提高原油降粘、除蜡,同时原油升温后对药剂与原油的反应具有催化促进作用,能加快反应速率,且加药为间断连续性少量加注,减少浪费的同时避免未反应完全的药剂被抽出地表增加原油杂质量;2. The chemical viscosity reduction and wax removal can be carried out by automatic dosing on the dynamic liquid surface through the dosing device. Combined with the hot oil well washing operation, the viscosity reduction and wax removal of crude oil can be significantly improved. Catalytic promotion can speed up the reaction rate, and the dosing is intermittent and continuous small amount of filling, which reduces waste and avoids the unreacted reagents being drawn out of the surface to increase the amount of crude oil impurities;

3、设置机械结构的定时控制装置对加药和热油洗井进行隔断连续的自动化控制,机械化结构使用成本低、稳定性高,不易因原油的稠度造成工作不可靠问题;3. The timing control device of the mechanical structure is set up to perform continuous automatic control of dosing and hot oil flushing. The mechanized structure has low cost and high stability, and is not easy to cause unreliable work due to the consistency of crude oil;

4、定时控制装置、抽油罐以及加药装置均采用同一套驱动系统进行联动,实现整体的循环性运动,减少设备使用量,联动驱动效率高。4. The timing control device, the oil pumping tank and the dosing device are all linked by the same drive system to realize the overall cyclic movement, reduce the use of equipment, and have high linkage drive efficiency.

附图说明Description of drawings

图1为本发明在一个方向的结构示意图。FIG. 1 is a schematic structural diagram of the present invention in one direction.

图2为本发明在另一方向的结构示意图。FIG. 2 is a schematic structural diagram of the present invention in another direction.

图3为本发明中压油罐的内部结构示意图。3 is a schematic diagram of the internal structure of the medium pressure oil tank of the present invention.

图4为本发明中管道组件的结构示意图。FIG. 4 is a schematic structural diagram of a pipeline assembly in the present invention.

图5为图4中A处的放大结构示意图。FIG. 5 is an enlarged schematic view of the structure at A in FIG. 4 .

图6为本发明中控制器的结构示意图。FIG. 6 is a schematic structural diagram of the controller in the present invention.

图7为本发明中定时控制装置的正面结构示意图。FIG. 7 is a schematic diagram of the front structure of the timing control device in the present invention.

图8为本发明中定时控制装置的背面结构示意图。FIG. 8 is a schematic diagram of the rear structure of the timing control device in the present invention.

图9为本发明中加药装置的结构示意图。FIG. 9 is a schematic structural diagram of the dosing device in the present invention.

图中,1、套管;12、油管;13、筛管;14、法兰座;2、压油罐;21、抽油管;22、第一连杆组;23、出油管;3、药箱;31、出料管;4、驱动装置;41、凸轮摆杆机构;5、定时控制装置;51、固定座;52、曲柄;53、滑块;54、凸轮;541、凸起;6、加药装置;61、第三连杆组;62、单向阀;63、加注管;64、抽药罐;7、管道组件;71、热油管;72、混合管;73、控制管;8、原油加热器;9、连杆驱动组件;91、驱动杆;92、连杆;93、转套;10、控制器;101、第二连杆组;102、柱塞;103、球塞;1031、通孔;11、抽油碗;111、出油孔;112、上游动阀;113、进油孔;114、下游动阀。In the figure, 1, casing; 12, oil pipe; 13, screen pipe; 14, flange seat; 2, oil pressure tank; 21, oil suction pipe; 22, first connecting rod group; 23, oil outlet pipe; 3, medicine box; 31, discharge pipe; 4, drive device; 41, cam swing lever mechanism; 5, timing control device; 51, fixed seat; 52, crank; 53, slider; 54, cam; 541, protrusion; 6 , dosing device; 61, the third connecting rod group; 62, one-way valve; 63, filling pipe; 64, pumping tank; 7, piping assembly; 71, hot oil pipe; 72, mixing pipe; 73, control pipe ; 8. Crude oil heater; 9. Connecting rod drive assembly; 91, Driving rod; 92, Connecting rod; 93, Turning sleeve; 10, Controller; 101, Second connecting rod group; 102, Plunger; 103, Ball Plug; 1031, through hole; 11, sucker bowl; 111, oil outlet; 112, upstream movable valve; 113, oil inlet; 114, downstream movable valve.

具体实施方式Detailed ways

下面将结合本发明实施例中的附图,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。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动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 technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

请参阅图1~3,本发明实施例中,一种石油套管加药装置,包括:压油罐2、药箱3、驱动装置4、定时控制装置5、加药装置6、管道组件7以及原油加热器8,所述压油罐2底端通过抽油管21连接至法兰座14,所述法兰座14连接在套管1端部,法兰座14与套管1内部连通,且抽油管21连接至套管1内至原油目标层的动液面以下;压油罐2内设置有抽油碗11,所述抽油碗11顶端固定连接有第一连杆组22,抽油碗11顶面上设置有与其内部连通出油孔111,抽油碗11底面设置有进油孔113,所述进油孔113以及压油罐2与抽油管21连接处分别设置有上游动阀112和下游动阀114,所述上游动阀112和下游动阀114均可上下滑动,具体的,上下游动阀均滑动连接在位于抽油碗11和压油罐2底部的导杆上,能够沿导杆上下滑动;所述驱动装置4为减速电机,减速电机输出端连接有凸轮摆杆机构41,减速电机可驱动凸轮摆杆机构41往复摆动运动,所述第一连杆组22顶端与凸轮摆杆机构41铰接,凸轮摆杆机构41往复摆动时将带动第一连杆组22运动,从而带动抽油碗11在压油罐2内往复移动,当抽油碗11上移时,上游动阀112将进油孔113封闭,而在抽压作用下下游动阀114将打开,套管1内原油在抽油压力下经抽油管21进入压油罐2内,同时利用套管1内具有的天然气的气压能更轻松得将原油抽出,随后抽油碗11下移,此时上下游动阀启闭相反,下游动阀114关闭,上游动阀112在油压下开启,使原油经进油孔113进入抽油碗11内并经出油孔111流入压油罐2上方,从而实现了将管内的原油抽出;Referring to FIGS. 1 to 3 , in an embodiment of the present invention, a chemical dosing device for oil casing includes: a pressure oil tank 2 , a medical tank 3 , a driving device 4 , a timing control device 5 , a dosing device 6 , and a pipeline assembly 7 and the crude oil heater 8, the bottom end of the oil pressure tank 2 is connected to the flange seat 14 through the oil suction pipe 21, the flange seat 14 is connected to the end of the casing 1, and the flange seat 14 is communicated with the inside of the casing 1, And the oil sucking pipe 21 is connected to the casing 1 to below the dynamic liquid level of the crude oil target layer; the oil pressure tank 2 is provided with an oil sucking bowl 11, and the top of the oil sucking bowl 11 is fixedly connected with a first connecting rod group 22, which is used for pumping. The top surface of the oil bowl 11 is provided with an oil outlet hole 111 that communicates with its interior, and the bottom surface of the oil bowl 11 is provided with an oil inlet hole 113. The oil inlet hole 113 and the connection between the oil pressure tank 2 and the oil extraction pipe 21 are respectively provided with upstream The dynamic valve 112 and the downstream dynamic valve 114 can both slide up and down. Specifically, the upstream and downstream dynamic valves are both slidably connected to the guide rail located at the bottom of the oil sucking bowl 11 and the oil pressure tank 2. On the rod, it can slide up and down along the guide rod; the driving device 4 is a deceleration motor, and the output end of the deceleration motor is connected with a cam swing lever mechanism 41, and the deceleration motor can drive the cam swing lever mechanism 41 to reciprocate and swing, and the first link The top of the group 22 is hinged with the cam swing lever mechanism 41. When the cam swing lever mechanism 41 swings back and forth, it will drive the first link group 22 to move, thereby driving the oil sucking bowl 11 to move back and forth in the oil pressure tank 2. When the oil sucking bowl 11 is on the When moving, the upstream valve 112 will close the oil inlet hole 113, and the downstream valve 114 will be opened under the action of pumping pressure, the crude oil in the casing 1 will enter the oil pressure tank 2 through the pumping pipe 21 under the pumping pressure, and at the same time The crude oil can be extracted more easily by using the gas pressure of the natural gas in the casing 1, and then the sucking bowl 11 is moved down. At this time, the opening and closing of the upstream and downstream valves are reversed, the downstream valve 114 is closed, and the upstream valve 112 is under oil pressure. Open downward, so that the crude oil enters the sucking bowl 11 through the oil inlet hole 113 and flows into the top of the oil pressure tank 2 through the oil outlet hole 111, thereby realizing the extraction of the crude oil in the pipe;

压油罐2侧面连接有出油管23,所述出油管23连接至原油加热器8的进油口,原油抽出至被压至出油管23内进入原油加热器8内进行加热。An oil outlet pipe 23 is connected to the side of the oil pressure tank 2 , and the oil outlet pipe 23 is connected to the oil inlet of the crude oil heater 8 .

如图4~6,所述管道组件7包括热油管71、混合管72和控制管73,所述热油管71和混合管72连接至套管1内,其中,热油管71管端至套管1底端近筛管13位置,混合管72管端位于靠近动液面下方位置,热油管71的另一端与原油加热器8的出油口连接,混合管72的另一端与热油管71连通,所述控制管73连通在热油管71上且与混合管72管端同轴,所述控制管73内设置有控制器10,所述控制器10包括第二连杆组101、柱塞102和球塞103,所述柱塞102设置在控制管73内并与控制管73间密封,柱塞102和球塞103直径相同,且球塞103直径大于混合管72管径,球塞103上设置有沿热油管71轴向的通孔1031;4 to 6, the pipeline assembly 7 includes a hot oil pipe 71, a mixing pipe 72 and a control pipe 73. The hot oil pipe 71 and the mixing pipe 72 are connected to the casing 1, wherein the pipe end of the hot oil pipe 71 is connected to the casing 1. The bottom end is near the screen pipe 13, the pipe end of the mixing pipe 72 is located close to the position below the dynamic liquid surface, the other end of the hot oil pipe 71 is connected to the oil outlet of the crude oil heater 8, and the other end of the mixing pipe 72 is communicated with the hot oil pipe 71 , the control pipe 73 is communicated with the hot oil pipe 71 and is coaxial with the pipe end of the mixing pipe 72 , the control pipe 73 is provided with a controller 10 , and the controller 10 includes a second connecting rod group 101 and a plunger 102 and the ball plug 103, the plunger 102 is arranged in the control pipe 73 and is sealed with the control pipe 73, the diameter of the plunger 102 and the ball plug 103 are the same, and the diameter of the ball A through hole 1031 is provided along the axial direction of the hot oil pipe 71;

如图7、8,所述第二连杆组101底端与柱塞102连接,顶端连接在定时控制装置5上,所述定时控制装置5包括固定座51、曲柄52、滑块53和凸轮54,所述滑块53滑动设置在固定座51上,且滑块53与固定座51间具有滑动阻尼,即滑块53在无外力下能够停在滑动行程内的任意位置而不会自主滑动,滑块53内侧对称设置有两组凸起541,凸轮54转动安装在固定座51上且位于两组凸起541之间,凸轮54转动过程中能分别与两侧凸起541接触,所述曲柄52转动连接在固定座51另一侧面且与凸轮54转轴连接,并在与凸轮54转轴间设置单向轴承,曲柄52端部连接至连杆驱动组件9,具体的,所述连杆驱动组件9包括驱动杆91、连杆92和转套93,所述转套93转动设置在驱动杆91上,所述驱动杆91与凸轮摆杆组件41固定连接,连杆92的两端分别与转套93和曲柄52连接,在凸轮摆杆组件41摆动时将同步带动驱动杆91运动,从而通过连杆92带动曲柄52往复摆动,摆动的曲柄52利用单向轴承使凸轮54仅在一个方向内回转,回转的凸轮54将带动滑块53移动,凸轮54与凸起541接触后在曲柄52的一个行程周期下可将滑块53送入行程端点位置,滑块53与第二连杆组101连接,当第二连杆组101上移时将球塞103拉入控制管73内,此时混合管72打开,同样曲柄52一次行程下带动凸轮54转动一定角度,通过设计合理的凸起位置,在一定时间间隔后凸轮54与另一侧的凸起541接触再次将球塞103送入热油管71内从而将混合管72封堵,而原油可经通孔1031流向热油管71内。As shown in Figures 7 and 8, the bottom end of the second connecting rod group 101 is connected to the plunger 102, and the top end is connected to the timing control device 5. The timing control device 5 includes a fixed seat 51, a crank 52, a slider 53 and a cam 54. The slider 53 is slidably arranged on the fixed seat 51, and there is a sliding damping between the slider 53 and the fixed seat 51, that is, the slider 53 can stop at any position within the sliding stroke without external force and will not slide autonomously , the inner side of the slider 53 is symmetrically provided with two sets of protrusions 541, the cam 54 is rotatably installed on the fixed seat 51 and is located between the two sets of protrusions 541, the cam 54 can be in contact with the protrusions 541 on both sides respectively during the rotation process, the said The crank 52 is rotatably connected to the other side of the fixed seat 51 and is connected to the rotating shaft of the cam 54, and a one-way bearing is arranged between the crank 52 and the rotating shaft of the cam 54. The end of the crank 52 is connected to the connecting rod driving assembly 9. Specifically, the connecting rod drives the The assembly 9 includes a driving rod 91, a connecting rod 92 and a rotating sleeve 93, the rotating sleeve 93 is rotatably arranged on the driving rod 91, the driving rod 91 is fixedly connected with the cam swing rod assembly 41, and the two ends of the connecting rod 92 are respectively connected with The rotating sleeve 93 is connected with the crank 52, and when the cam swing lever assembly 41 swings, the drive rod 91 is driven to move synchronously, thereby driving the crank 52 to swing back and forth through the connecting rod 92, and the swinging crank 52 uses a one-way bearing to make the cam 54 move in only one direction. Inward rotation, the rotating cam 54 will drive the sliding block 53 to move. After the cam 54 contacts the protrusion 541, the sliding block 53 can be sent to the stroke end position within one stroke cycle of the crank 52. The sliding block 53 and the second connecting rod group 101 is connected, when the second connecting rod group 101 moves up, the ball plug 103 is pulled into the control tube 73, at this time the mixing tube 72 is opened, and the crank 52 drives the cam 54 to rotate a certain angle in one stroke. After a certain time interval, the cam 54 contacts the protrusion 541 on the other side and sends the ball plug 103 into the hot oil pipe 71 again to block the mixing pipe 72 , and the crude oil can flow into the hot oil pipe 71 through the through hole 1031 .

如图9,所述药箱3内盛装有配置好的降粘剂、除蜡剂等,药箱3通过出料管31连接加药装置6,所述加药装置6包括第三连杆组61、单向阀62、加注管63和抽药罐64,所述抽药罐64内设置活塞,所述活塞与第三连杆组61连接,所述第三连杆组61连接驱动杆91,所述单向阀62设置两组,分别设置在出料管31和加注管63上,所述出料管31和加注管63分别连接在抽药罐64侧面上方,所述加注管63连接至压油罐2内顶部位置,驱动杆91通过第三连杆组61带动活塞移动,活塞下移时出料管31上单向阀62打开,而加注管63上单向阀62断路,从而将药剂抽入抽药罐64内,活塞上移时,同理,单向阀62通断相反,药液被压入加注管63送入压油罐2内与原油混合,为了提高混合均匀性,可在加注管63端头设置微细化喷嘴将药剂细化喷出,提高混合反应效率。As shown in FIG. 9 , the medicine box 3 contains the configured viscosity reducing agent, wax remover, etc. The medicine box 3 is connected to the medicine dosing device 6 through the discharge pipe 31 , and the medicine dosing device 6 includes a third connecting rod group. 61. One-way valve 62, filling pipe 63 and medicine pumping tank 64, a piston is arranged in the medicine pumping tank 64, the piston is connected with the third connecting rod group 61, and the third connecting rod group 61 is connected with the driving rod 91. There are two sets of the one-way valve 62, which are respectively arranged on the discharge pipe 31 and the filling pipe 63. The injection pipe 63 is connected to the top position of the oil pressure tank 2. The driving rod 91 drives the piston to move through the third connecting rod group 61. When the piston moves down, the one-way valve 62 on the discharge pipe 31 is opened, and the one-way valve on the filling pipe 63 is opened. The valve 62 is disconnected, so that the medicine is pumped into the medicine pumping tank 64. When the piston moves up, in the same way, the one-way valve 62 is turned on and off, and the medicine liquid is pressed into the filling pipe 63 and sent into the pressure oil tank 2 to be mixed with the crude oil. , in order to improve the mixing uniformity, a micronizing nozzle can be arranged at the end of the filling pipe 63 to finely spray the medicine, so as to improve the mixing reaction efficiency.

结合上述,原油经抽出后送入压油罐2内,同时药箱3内配置好的药剂经加药装置6同步送到压油罐2内与原油混合,后原油压入原油加热器8内加热,使其升温至65-80°,再送入热油管71内,若混合管72封堵,则原油将被压入热油管71中送入套管1底部,与原油混合,原油便通过抽油压力经筛管13很快送入油管12内,从而利用热油对油管12内壁进行除蜡,将蜡层熔化带出地表,实现热力洗井;通过定时控制装置5的定时控制,可切换热油流出位置,混合管72开启后热油便自动流入至混合管72送入动液面下,而混有降粘剂、除蜡剂的原油进入管内与原油反应,可降低原油粘度提高其产量和化学反应降蜡,同样热油使原油升温也能降低粘度,考虑到原油具有粘度的特性,电控性的阀门不易达到效果且易故障,通过机械结构的定时控制实现了在热油洗井的基础上间断性的向目标层动液面上加药的效果,二者结合从而达到理想的降粘、控蜡的效果。Combined with the above, the crude oil is pumped out and fed into the oil pressure tank 2, and the medicines prepared in the medicine tank 3 are simultaneously sent to the oil pressure tank 2 through the dosing device 6 to be mixed with the crude oil, and then the crude oil is pressed into the crude oil heater 8. Heating to make it warm to 65-80°, and then sent into the hot oil pipe 71, if the mixing pipe 72 is blocked, the crude oil will be pressed into the hot oil pipe 71 and sent to the bottom of the casing 1, mixed with the crude oil, and the crude oil will be pumped through the pump. The oil pressure is quickly sent into the oil pipe 12 through the screen pipe 13, so that the inner wall of the oil pipe 12 is dewaxed with hot oil, and the wax layer is melted and brought out of the surface to realize thermal well flushing; through the timing control of the timing control device 5, it can be switched At the outflow position of the hot oil, after the mixing pipe 72 is opened, the hot oil automatically flows into the mixing pipe 72 and is sent under the dynamic liquid surface, and the crude oil mixed with the viscosity reducer and the wax remover enters the pipe and reacts with the crude oil, which can reduce the viscosity of the crude oil and improve its performance. The production and chemical reaction reduce the wax, and the hot oil can also reduce the viscosity of the crude oil by heating up the crude oil. Considering the viscosity of the crude oil, the electronically controlled valve is not easy to achieve the effect and is prone to failure. Through the timing control of the mechanical structure, the hot oil washing On the basis of the well, the effect of intermittently adding chemicals to the dynamic liquid surface of the target layer, the combination of the two can achieve the ideal effect of reducing viscosity and controlling wax.

对于本领域技术人员而言,显然本发明不限于上述示范性实施例的细节,而且在不背离本发明的精神或基本特征的情况下,能够以其他的具体形式实现本发明。因此,无论从哪一点来看,均应将实施例看作是示范性的,而且是非限制性的,本发明的范围由所附权利要求而不是上述说明限定,因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

此外,应当理解,虽然本说明书按照实施方式加以描述,但并非每个实施方式仅包含一个独立的技术方案,说明书的这种叙述方式仅仅是为清楚起见,本领域技术人员应当将说明书作为一个整体,各实施例中的技术方案也可以经适当组合,形成本领域技术人员可以理解的其他实施方式。In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (7)

1. An oil casing medicating device, comprising: the device comprises a sleeve (1), a pressure oil tank (2), a medicine box (3), a driving device (4), a pipeline assembly (7) and a crude oil heater (8), wherein the medicine box (3) is connected to the pressure oil tank (2); the method is characterized in that: the bottom end of the oil pressing tank (2) is connected to the position below the working fluid level of a crude oil target layer in the sleeve (1) through an oil pumping pipe (21), the oil pressing tank (2) is used for pumping crude oil in an annular space of the sleeve (1) into the tank, and the side surface of the oil pressing tank (2) is connected to an oil inlet of the crude oil heater (8) through an oil outlet pipe (23);
the output end of the driving device (4) is connected with a cam oscillating bar mechanism (41);
the pipeline assembly (7) comprises a hot oil pipe (71), a mixing pipe (72) and a control pipe (73), the hot oil pipe (71) and the mixing pipe (72) are connected into the casing pipe (1), the other end of the hot oil pipe (71) is connected with an oil outlet of the crude oil heater (8), the other end of the mixing pipe (72) is communicated with the hot oil pipe (71), the pipe end of the hot oil pipe (71) is connected to the bottom end of the casing pipe (1), the pipe end of the mixing pipe (72) is located at a position close to the lower part of a working fluid level, the control pipe (73) is communicated with the hot oil pipe (71) and is coaxial with the pipe end of the mixing pipe (72), and a controller (10) used for controlling the on-off of the mixing pipe (72) and keeping the hot oil pipe (71) in a passage state is arranged in the control pipe (73);
the controller (10) comprises a second connecting rod group (101), a plunger (102) and a ball plug (103), the plunger (102) is arranged in the control tube (73) and sealed with the control tube (73), the diameters of the plunger (102) and the ball plug (103) are the same, the diameter of the ball plug (103) is larger than that of the mixing tube (72), and a through hole (1031) in the axial direction of the hot oil tube (71) is formed in the ball plug (103);
second connecting rod group (101) bottom is connected with plunger (102), and the top is connected on slider (53) on timing control device (5), timing control device (5) are including fixing base (51), crank (52), slider (53) and cam (54), slider (53) slide to be set up on fixing base (51), and slider (53) inboard symmetry is provided with two sets of archs, and cam (54) rotate to be installed on fixing base (51) and lie in between two sets of archs, crank (52) rotate to be connected in fixing base (51) another side and be connected with cam (54) pivot to set up one-way bearing in the pivot with cam (54), crank (52) end connection to with cam pendulum rod mechanism (41) synchronous swing motion's connecting rod drive assembly (9).
2. The petroleum casing pipe dosing device of claim 1, wherein: be provided with in the pressure oil tank (2) and take out oil bowl (11), the first connecting rod group (22) of oil bowl (11) top fixedly connected with is provided with oil outlet (111) rather than inside intercommunication on the top surface of oil bowl (11), and oil bowl (11) bottom surface is provided with inlet port (113), inlet port (113) and pressure oil tank (2) are provided with respectively with the punishment of taking out oil pipe (21) and move valve (112) and lower traveling valve (114) on going up, move valve (112) and lower traveling valve (114) homoenergetic and slide from top to bottom.
3. The petroleum casing pipe dosing device of claim 2, wherein: the top end of the first connecting rod group (22) is hinged with the cam oscillating bar mechanism (41).
4. The petroleum casing pipe dosing device of claim 1, wherein: the connecting rod driving assembly (9) comprises a driving rod (91), a connecting rod (92) and a rotating sleeve (93), the rotating sleeve (93) is rotatably arranged on the driving rod (91), the driving rod (91) is fixedly connected with the cam oscillating bar mechanism (41), and two ends of the connecting rod (92) are respectively connected with the rotating sleeve (93) and the crank (52).
5. The petroleum casing pipe dosing device of claim 1, wherein: and sliding damping is arranged between the sliding block (53) and the fixed seat (51).
6. The petroleum casing chemical dosing device of claim 4, wherein: medicine adding device (6) is connected through discharging pipe (31) in medical kit (3), medicine adding device (6) include third connecting rod group (61), check valve (62), filling pipe (63) and draw medicine jar (64), draw and set up the piston in medicine jar (64), the piston is connected with third connecting rod group (61), actuating lever (91) is connected in third connecting rod group (61), check valve (62) set up two sets ofly, set up respectively on discharging pipe (31) and filling pipe (63), discharging pipe (31) and filling pipe (63) are connected respectively in medicine jar (64) side top of drawing, top position in filling pipe (63) are connected to pressure oil jar (2).
7. The petroleum casing chemical dosing device of claim 6, wherein: the end of the filling pipe (63) is provided with a micronizing nozzle.
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