CN105974098B - A kind of high-water-cut oil-producing well well head water content on-line testing device - Google Patents
A kind of high-water-cut oil-producing well well head water content on-line testing device Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 66
- 238000000926 separation method Methods 0.000 claims abstract description 56
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 238000005259 measurement Methods 0.000 claims abstract description 6
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000006378 damage Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims description 2
- 230000008676 import Effects 0.000 claims 10
- 239000003129 oil well Substances 0.000 abstract description 9
- 230000005484 gravity Effects 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 11
- 239000010779 crude oil Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
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- G—PHYSICS
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- G01N33/2835—Specific substances contained in the oils or fuels
- G01N33/2847—Water in oils
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- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
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Abstract
一种高含水油井井口含水率在线检测装置，包括分离腔，分离腔的下部设置有混合液进液口，顶部设置气相流出口，底部设置分离液出口，通过重力和管道压力，使分离液流出，分离腔中设置有浮球，气相流出口和分离液出口均与输油管道相连接，其中分离液出口与输油管道的连接管路上设置含水率检测传感器；三相流混合液从混合液进口经流线滑坡进入分离腔，气相流向上运动进入气仓，最终返回输油管道；分离液向下流，缓慢分离，液体从分离腔到分离液出口这段距离的运动，气相流持续向上运动使分离更加彻底；流出分离液出口的分离液被检测后最终进入输油管道；整个设备在使用过程中不会产生环境污染，而且极大提高了高含水率检测传感器测量精度。
An on-line detection device for wellhead water content of high water-cut oil wells, comprising a separation chamber, the lower part of which is provided with a mixed liquid inlet, the top is provided with a gas phase outflow port, and the bottom is provided with a separation liquid outlet, through which the separation liquid flows out through gravity and pipeline pressure , a floating ball is set in the separation chamber, the gas phase outlet and the separation liquid outlet are connected to the oil pipeline, and the water content detection sensor is set on the connecting pipeline between the separation liquid outlet and the oil pipeline; the three-phase flow mixture flows from the mixture inlet through The streamline landslide enters the separation chamber, the gas phase flow moves upward into the gas chamber, and finally returns to the oil pipeline; the separation liquid flows downward and separates slowly, and the liquid moves from the separation chamber to the separation liquid outlet, and the gas phase flow continues to move upward to make the separation more efficient Thorough; the separation liquid flowing out of the separation liquid outlet is detected and finally enters the oil pipeline; the whole equipment will not produce environmental pollution during use, and the measurement accuracy of the high water content detection sensor is greatly improved.
Description
技术领域technical field
本发明属于原油生产销售检测技术领域，特别涉及一种高含水油井井口含水率在线检测装置。The invention belongs to the technical field of crude oil production and sales detection, and in particular relates to an online detection device for water content at the wellhead of a high water-cut oil well.
背景技术Background technique
在石油工业中，原油含水率是一项重要指标，通过它可以预测油井水位，油层位置；对原油产量和开采价值进行估计，预测采出程度并制定相应的开采方案，预测油井的开发寿命有着非常重要意义。对于原油的开采，集输，脱水，计量，销售，炼化等产生重大影响，油田生产中需要准确及时的了解原油含水率情况，通过原油含水率来估计油井的工作状态，预计油井产量，提高油田的自动化管理，提高生产效率，起着非常重要的重要作用。但是生产出的原油基本都是由固，液，气组成的三相流，这对原油含水率测量产生了极大的影响，测得数据失真程度严重。In the petroleum industry, the water content of crude oil is an important indicator, through which the water level of the oil well and the position of the oil layer can be predicted; the crude oil output and production value can be estimated, the degree of recovery can be predicted and the corresponding production plan can be formulated, and the development life of the oil well can be predicted. Very important. It has a major impact on crude oil extraction, gathering and transportation, dehydration, metering, sales, refining, etc. In oilfield production, it is necessary to accurately and timely understand the water content of crude oil, use the water content of crude oil to estimate the working status of oil wells, predict oil well production, and improve The automated management of oilfields plays a very important role in improving production efficiency. However, the crude oil produced is basically a three-phase flow composed of solid, liquid, and gas, which has a great impact on the measurement of the water content of crude oil, and the measured data is seriously distorted.
发明内容Contents of the invention
为了克服上述现有技术的缺点，本发明的目的在于提供一种高含水油井井口含水率在线检测装置，将三相流对含水率测量影响最大的气相流分离出去，使含水率传感器在一个相对稳定的两相流中进行工作，极大的提高了测量精度，以满足油田实际生产要求。In order to overcome the above-mentioned shortcomings of the prior art, the object of the present invention is to provide an on-line detection device for the water cut at the wellhead of a high water-cut oil well, which separates the gas phase flow which has the greatest influence on the water cut measurement of the three-phase flow, so that the water cut sensor can be used in a relative Work in a stable two-phase flow, which greatly improves the measurement accuracy to meet the actual production requirements of the oil field.
为了实现上述目的，本发明采用的技术方案是：In order to achieve the above object, the technical scheme adopted in the present invention is:
一种高含水油井井口含水率在线检测装置，包括分离腔4，分离腔4的下部设置有混合液进液口2，顶部设置气相流出口3，底部设置分离液出口9，通过重力和管道压力，使分离液流出，分离腔4中设置有浮球7，气相流出口3和分离液出口9均与输油管道12相连接，其中分离液出口9与输油管道12的连接管路上设置含水率检测传感器10；目的在于减小气相流对含水率传感器的检测的干扰。分离后的气体和分离后经过含水率检测传感器10检测后的分离液再次送回输油管道12，可避免环境污染。An on-line detection device for wellhead water content of high-water-cut oil wells, comprising a separation chamber 4, a mixed liquid inlet 2 is provided at the lower part of the separation chamber 4, a gas phase outflow port 3 is provided at the top, and a separation liquid outlet 9 is provided at the bottom, through gravity and pipeline pressure , so that the separation liquid flows out, the separation chamber 4 is provided with a floating ball 7, the gas phase outflow port 3 and the separation liquid outlet 9 are connected to the oil pipeline 12, wherein the connection between the separation liquid outlet 9 and the oil pipeline 12 is provided with a water content detection Sensor 10; the purpose is to reduce the interference of the gas phase flow on the detection of the water cut sensor. The separated gas and separated liquid detected by the water content detection sensor 10 are sent back to the oil pipeline 12 again, which can avoid environmental pollution.
三相流从混合液进口2进入，对含水率测量影响最大的气相流从气相流出口3分离出去，从而使含水率检测传感器10处于相对稳定的检测环境。The three-phase flow enters from the mixed liquid inlet 2, and the gas phase flow which has the greatest influence on the water content measurement is separated from the gas phase outflow port 3, so that the water content detection sensor 10 is in a relatively stable detection environment.
所述分离腔4包含上部的气仓5和液仓6，在分离过程中，增加分效率，浮球7增加浮动空间，避免堵塞混合液进口2。浮球7根据液位不同，上下浮动，使出液端口8出现开放和关闭两种状态，达到确保无气体排出。The separation chamber 4 includes an upper gas chamber 5 and a liquid chamber 6. During the separation process, the separation efficiency is increased, and the floating ball 7 increases the floating space to avoid blocking the mixed liquid inlet 2. The floating ball 7 floats up and down according to the different liquid levels, so that the liquid outlet port 8 appears in two states of open and closed, so as to ensure that no gas is discharged.
所述分离腔4为大空间设计，分离腔4腔体体积与三相流从混合液进口2通径d(单位mm)关系为：L腔＝3.1x104d(单位mm3)；气仓5设计为大容量，气仓体积与三相流从混合液进口2通径d(单位mm)关系为：L气＝9.5x103d(单位mm3)，在大量进液时使浮球7上浮，防止因进液过多导致混合液进口(2)被浮球7堵塞。The separation chamber 4 is designed for a large space, and the relationship between the volume of the separation chamber 4 and the diameter d (unit mm) of the three-phase flow from the mixed liquid inlet 2 is: L chamber = 3.1×10 4 d (unit mm 3 ); 5. It is designed with a large capacity. The relationship between the volume of the gas chamber and the diameter d (unit mm) of the three-phase flow from the mixed liquid inlet 2 is: L gas = 9.5x10 3 d (unit mm 3 ), when a large amount of liquid enters, the floating ball 7 Float up to prevent the mixed solution inlet (2) from being blocked by the float 7 due to excessive liquid intake.
所述气相流出口3设计为小口径，气相流出口3口径d气(单位mm)与三相流从混合液进口2通径d(单位mm)关系为：d＝0.5d气确保气相流流经气相返回管道11进入输油管道12的运动。The gas phase outlet 3 is designed as a small diameter, and the relationship between the gas phase outlet 3 caliber d gas (unit mm) and the three-phase flow from the mixed liquid inlet 2 diameter d (unit mm) is: d=0.5d gas to ensure the gas phase flow The gas phase returns to the pipeline 11 and enters the movement of the oil pipeline 12.
所述混合液进口2处设置开口型流线滑坡1，让混合三相流自然进入分离腔4，减小流体对设备的破坏。An open streamline landslide 1 is provided at the inlet 2 of the mixed liquid to allow the mixed three-phase flow to naturally enter the separation chamber 4, reducing the damage of the fluid to the equipment.
所述浮球7的直径D(单位mm)与三相流从混合液进口2通径d(单位mm)关系为：D＝1.6d，分离腔4内径d腔(单位mm)与三相流从混合液进口2通径d(单位mm)关系为：d腔＝1.8d，满足进液出液同等速率。The relationship between the diameter D (unit mm) of the floating ball 7 and the three-phase flow from the mixed solution inlet 2 diameter d (unit mm) is: D=1.6d, the separation chamber 4 inner diameter d chamber (unit mm) and the three-phase flow The relationship between the diameter d (in mm) of the inlet 2 of the mixed liquid is: d chamber = 1.8d, which satisfies the same rate of liquid inflow and outflow.
所述分离液出口9为斜出口，向下倾斜。The separation liquid outlet 9 is an oblique outlet, which is inclined downward.
与现有技术相比，本发明的有益效果是：Compared with prior art, the beneficial effect of the present invention is:
1.混合液流入分离腔，液体会在腔体内存在一段时间，增加了气液分离效率。1. The mixed liquid flows into the separation chamber, and the liquid will exist in the chamber for a period of time, which increases the efficiency of gas-liquid separation.
2.混合液进口处设计为流线型，减少了液体在进分离仓时候的冲击，加大设备工作寿命和可靠性。2. The inlet of the mixed liquid is designed to be streamlined, which reduces the impact of the liquid when it enters the separation chamber, and increases the working life and reliability of the equipment.
3.浮球采用抗腐蚀材料制成，具有良好的抗腐蚀能力，杜绝材料对进液的污染的同时，增加了设备使用寿命。3. The floating ball is made of anti-corrosion material, which has good anti-corrosion ability, prevents the pollution of the material to the liquid, and increases the service life of the equipment.
4.浮球和出液端口配合，根据不同进液量可以控制出液速率。4. The floating ball and the liquid outlet port cooperate, and the liquid discharge rate can be controlled according to the different liquid intake.
5.气相流出口设计为小口径，确保气相流流经气相返回管道的运动。5. The gas phase outlet is designed with a small diameter to ensure the movement of the gas phase flow through the gas phase return pipeline.
6.浮球与分离腔腔壁成一定间隙，控制通流面积，确保分离效率。6. There is a certain gap between the floating ball and the wall of the separation chamber to control the flow area and ensure the separation efficiency.
7.做到了绿色分离，整个过程中无污染分离物最终回到输油管线中。7. Green separation is achieved, and the non-polluting separations are finally returned to the oil pipeline during the whole process.
附图说明Description of drawings
图1是本发明结构示意图。Fig. 1 is a schematic diagram of the structure of the present invention.
具体实施方式Detailed ways
下面结合附图和实施例详细说明本发明的实施方式。The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.
如图1所示，本发明一种高含水油井井口含水率在线检测装置，包括分离腔4，分离腔4的下部设置有混合液进液口2，顶部设置气相流出口3，底部设置分离液出口9，通过重力和管道压力，使分离液流出，分离腔4中设置有浮球7，气相流出口3和分离液出口9均与输油管道12相连接，其中分离液出口9与输油管道12的连接管路上设置含水率检测传感器10。As shown in Figure 1, an on-line detection device for wellhead water content of high water-cut oil wells according to the present invention includes a separation chamber 4, the lower part of the separation chamber 4 is provided with a mixed liquid inlet 2, the top is provided with a gas phase outlet 3, and the bottom is provided with a separation liquid Outlet 9, through gravity and pipeline pressure, the separation liquid flows out, and a floating ball 7 is arranged in the separation chamber 4, and the gas phase outflow port 3 and the separation liquid outlet 9 are connected with the oil pipeline 12, wherein the separation liquid outlet 9 is connected with the oil pipeline 12 A moisture content detection sensor 10 is set on the connecting pipeline.
分离腔4包含上部的气仓5和液仓6，在分离过程中，增加分效率，浮球7增加浮动空间，避免堵塞混合液进口2。浮球7根据液位不同，上下浮动，使出液端口8出现开放和关闭两种状态，达到确保无气体排出。The separation chamber 4 includes the upper gas chamber 5 and the liquid chamber 6. During the separation process, the separation efficiency is increased, and the floating ball 7 increases the floating space to avoid blocking the mixed liquid inlet 2. The floating ball 7 floats up and down according to the different liquid levels, so that the liquid outlet port 8 appears in two states of open and closed, so as to ensure that no gas is discharged.
三相流混合液从混合液进口2经过流线滑坡1流畅地进入分离腔4，在分离腔4中，混合液中的气相流向上走，进入气仓5中，气仓5中气相流通过气相流出口3经过气相返回管道11进入输油管道12避免环境污染；分离液因重力原因和压力关系向下流，混合液会在分离腔4中缓慢分离开来，利用液体从分离腔4到分离液出口9这段时间，气相流持续向上运动，使分离更加彻底；在分离过程中，浮球7因为液体液位的关系，会和出液端口8形成一定高度差，控制液仓6液体流速；流出分离液出口9的分离液在被含水率检测传感器10检测后再次进入输油管道12。The three-phase flow mixed liquid enters the separation chamber 4 smoothly from the mixed liquid inlet 2 through the streamline landslide 1. In the separation chamber 4, the gas phase flow in the mixed liquid moves upwards and enters the gas chamber 5, and the gas phase flow in the gas chamber 5 passes through The gas phase outlet 3 enters the oil pipeline 12 through the gas phase return pipeline 11 to avoid environmental pollution; the separation liquid flows downward due to gravity and pressure relationship, and the mixed liquid will slowly separate in the separation chamber 4, and the liquid is used to transfer from the separation chamber 4 to the separation liquid. During the period at the outlet 9, the gas phase flow continues to move upwards, making the separation more thorough; during the separation process, the floating ball 7 will form a certain height difference with the liquid outlet port 8 due to the liquid level, and control the liquid flow rate of the liquid tank 6; The separation liquid flowing out of the separation liquid outlet 9 enters the oil pipeline 12 again after being detected by the water content detection sensor 10 .
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| CN104989372A (en) * | 2015-06-26 | 2015-10-21 | 中国石油化工股份有限公司胜利油田分公司 | Device for online metering of oil well liquid amount by means of turbine method |
| CN204877436U (en) * | 2015-06-26 | 2015-12-16 | 中国石油化工股份有限公司胜利油田分公司 | Online moisture analytical equipment of oil well wellhead |
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2016
- 2016-07-15 CN CN201610561303.XA patent/CN105974098B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6809528B1 (en) * | 1999-06-17 | 2004-10-26 | Vaisala Oyj | Method and apparatus for measuring water content |
| GB2467373B (en) * | 2009-01-30 | 2012-09-26 | Kittiwake Developments Ltd | Composition and method for determining the water content present in oil |
| CN103184861A (en) * | 2013-04-02 | 2013-07-03 | 荆州市明德科技有限公司 | Crude oil sand content analysis device |
| CN203363296U (en) * | 2013-07-01 | 2013-12-25 | 台州中恒机械有限公司 | Flow liquid air blocking valve |
| CN104989372A (en) * | 2015-06-26 | 2015-10-21 | 中国石油化工股份有限公司胜利油田分公司 | Device for online metering of oil well liquid amount by means of turbine method |
| CN204877436U (en) * | 2015-06-26 | 2015-12-16 | 中国石油化工股份有限公司胜利油田分公司 | Online moisture analytical equipment of oil well wellhead |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109975526A (en) * | 2019-04-11 | 2019-07-05 | 燕山大学 | A kind of well head oil-gas-water three-phase flow static state measurement of water ratio system and its control method |
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| CN105974098A (en) | 2016-09-28 |
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