阅读说明：本技术 一种缓释型示踪剂实时找水装置、水平井实时找水堵水一体化管柱及实施方法 (Slow-release tracer agent real-time water exploration device, horizontal well real-time water exploration and water shutoff integrated tubular column and implementation method ) 是由 景成 林加恩 谢青 任龙 谷潇雨 何延龙 王强 于 2019-09-27 设计创作，主要内容包括：本发明属于水平井实时找水堵水技术领域,具体涉及一种缓释型示踪剂实时找水装置、水平井实时找水堵水一体化管柱及实施方法,本发明的实施找水堵水一体化管柱包括可将水平井分为多个井段的封隔器和可放置缓释型示踪剂的找水装置,可根据井口采集到的各示踪剂含量准确判断出水平井各井段的产水情况,配合缓释型示踪剂实时找水装置中可开关滑套的应用,可对水平井任一井段进行堵水作业。本发明实现了一趟管柱确定水平井产水部位、对水平井产水部位进行精确堵水作业的功能,解决了目前水平井找水及堵水技术存在的需要多次起下管柱、作业费用高、作业周期长、设备下入困难等多方面的问题,可满足矿场上对水平井经济、高效找水堵水的需求。(the invention belongs to the technical field of real-time water exploration and water shutoff of horizontal wells, and particularly relates to a slow-release tracer real-time water exploration device, a horizontal well real-time water exploration and water shutoff integrated tubular column and an implementation method. The invention realizes the functions of determining the water production part of the horizontal well and accurately plugging the water production part of the horizontal well by one string, solves the problems of the prior horizontal well water exploration and plugging technology that the string needs to be pulled out for many times, the operation cost is high, the operation period is long, the equipment is difficult to put in, and the like, and can meet the requirements of economic and efficient water exploration and plugging of the horizontal well on a mine site.)

1. The device for finding water in real time by using the slow-release tracer is characterized by comprising a central tube (6), a switchable sliding sleeve (16), a protection tube (14) and a plurality of water-soluble tracer carriers, wherein the protection tube (14) is coaxially sleeved outside the central tube (6);

the cavity between the protection tube (14) and the central tube (6) is a release cavity, the central tube (6) is provided with a switchable sliding sleeve (16) at the position corresponding to the release cavity, the switchable sliding sleeve (16) can enable the release cavity to be communicated with or cut off from the inner cavity of the central tube (6), and water-soluble tracer carriers are fixedly arranged on the two sides of the switchable sliding sleeve (16) of the release cavity;

Two ends of the protection tube (14) are respectively provided with a liquid outlet channel communicated with the release cavity.

2. the real-time water-finding device for the slow-release type tracer according to claim 1, characterized in that in the release cavity, the water-soluble tracer carriers fixedly arranged on both sides of the switchable sliding sleeve (16) have the same mass.

3. the real-time water finding device for the slow-release type tracer according to claim 1, wherein the mass of effective chemical substances in a water-soluble type tracer carrier is more than or equal to 10 x the daily water yield of a horizontal well x 10 x the detection precision of the tracer.

4. the real-time water finding device for the slow-release type tracer according to claim 1, wherein the diameter of the liquid outlet channel (13) is at least 0.850 mm.

5. the real-time water finding device for the slow-release tracer according to claim 1, characterized in that the diameter of the protection tube (14) is 1.1-1.3 times of the diameter of the central tube (6).

6. The integrated pipe column for water exploration and water shutoff in the horizontal well is characterized by comprising an oil pipe, a horizontal well horizontal section well completion casing (4), a packer (5) and the slow-release tracer real-time water exploration device according to any one of claims 1 to 5, wherein the horizontal well horizontal section well completion casing (4) is sleeved outside the oil pipe, a plurality of slow-release tracer real-time water exploration devices are arranged on the oil pipe at intervals, and the packer (5) is arranged between every two adjacent slow-release tracer real-time water exploration devices between the oil pipe and the horizontal well horizontal section well completion casing (4).

7. The horizontal well real-time water exploration and blocking integrated pipe column according to claim 6, wherein the slow-release tracer real-time water exploration device is arranged in the middle of the two corresponding packers (5).

8. The method for integrally implementing real-time water exploration and water shutoff of the horizontal well is characterized by being carried out through the integrated tubular column of claim 6 or 7, and comprises the following steps:

The method comprises the following steps of (1) running a horizontal well real-time water finding and blocking integrated pipe column to a horizontal well target position, arranging a slow-release tracer real-time water finding device at a preset position of a horizontal well, wherein effective chemical substances of water-soluble tracer carriers of the slow-release tracer real-time water finding devices are different;

setting the packer (5), and partitioning the horizontal well into a plurality of mutually independent areas, so that reservoir fluid in the areas can only flow into the release cavity from the liquid outlet channel (13) on the corresponding slow-release tracer real-time water finding device; in the release cavity, stratum produced water flushes the water-soluble tracer carriers, so that tracer effective chemical substances are dissolved in the stratum water, and the stratum water carrying the tracer effective chemical substances flows into the central pipe (6) and enters the oil pipe through the switchable sliding sleeve (16);

The method comprises the steps that a horizontal well is opened for normal production, produced fluid of the horizontal well is sampled and analyzed on the ground, and the water yield of each section of the horizontal well is determined through analysis of the concentrations of effective chemical substances of tracers in a plurality of independent areas;

after the water yield of each section of the horizontal well is determined, screening out the horizontal well sections needing water plugging operation, closing other switchable sliding sleeves (16) of the slow-release tracer real-time water finding devices in the well sections needing no water plugging operation, and only opening the switchable sliding sleeves (16) of the slow-release tracer real-time water finding devices in the well sections needing water plugging operation;

And injecting the water plugging agent into the well section needing water plugging operation to complete the water plugging operation.

9. The method for integrally implementing water exploration and water shutoff of the horizontal well according to claim 8, wherein the slow-release tracer real-time water exploration devices are arranged at the heel part, the middle part and the toe part of the horizontal well.

10. The method for integrally implementing water exploration and water shutoff of the horizontal well according to claim 8, wherein the release rate of effective chemical substances of the water-soluble tracer carrier is only influenced by the flushing rate of formation water at a preset temperature, and the release rate and the flushing rate are in positive correlation.

Technical Field

the invention belongs to the technical field of real-time water exploration and water shutoff of horizontal wells, and particularly relates to a slow-release tracer real-time water exploration device, a real-time water exploration and water shutoff integrated tubular column of a horizontal well and an implementation method.

background

With the wide application of horizontal wells in China, a large number of high-yield horizontal wells appear, how to economically and efficiently determine water-meeting parts and accurately block water for the high-yield horizontal wells becomes a problem to be solved urgently for improving the oil production efficiency and economic efficiency of the horizontal wells.

at present, in the aspect of water exploration and water shutoff of a horizontal well, a common method is to firstly put a related liquid production profile testing device to determine a water breakthrough part of the horizontal well, and then to adopt a sectional water shutoff measure to block a high water production part of the horizontal well. The technology often has the problems of multiple tripping of the pipe column, high operation cost, long operation period, difficulty in equipment tripping and the like, and is difficult to meet the requirements of economic and efficient water exploration and water shutoff of the horizontal well on a mine site.

Disclosure of Invention

The invention aims to solve the problems that the existing horizontal well water exploration and water shutoff technology has the limitations of multiple tripping of a pipe column, high operation cost, long operation period, difficulty in equipment tripping and the like, and the economical and efficient water exploration and water shutoff requirements of a horizontal well on a mine site are difficult to meet, and provides a slow-release tracer real-time water exploration and water shutoff integrated pipe column and an implementation method.

the technical scheme adopted by the invention is as follows:

A slow-release tracer real-time water finding device comprises a central tube, a switchable sliding sleeve, a protection tube and a plurality of water-soluble tracer carriers, wherein the protection tube is coaxially sleeved outside the central tube;

The cavity between the protection tube and the central tube is a release cavity, the central tube is provided with a switchable sliding sleeve at a position corresponding to the release cavity, the switchable sliding sleeve can enable the release cavity to be communicated or disconnected with the inner cavity of the central tube, and water-soluble tracer carriers are fixedly arranged on two sides of the switchable sliding sleeve of the release cavity;

Liquid outlet channels communicated with the release cavity are respectively arranged at two ends of the protection tube.

In the release chamber, the quality of the water-soluble tracer carrier that all fixes the setting in switchable sliding sleeve both sides is the same.

The mass of effective chemical substances in the water-soluble tracer carrier is more than or equal to 10 multiplied by the daily water yield of the horizontal well multiplied by 10 multiplied by the tracer detection precision.

the diameter of the liquid outlet channel is 0.850mm at least.

the diameter of the protection tube is 1.1-1.3 times of the diameter of the central tube.

The invention discloses a horizontal well real-time water exploration and water shutoff integrated pipe column which comprises an oil pipe, a horizontal well horizontal section well completion sleeve, a packer and the slow-release type tracer real-time water exploration device, wherein the horizontal well horizontal section well completion sleeve is sleeved outside the oil pipe, a plurality of slow-release type tracer real-time water exploration devices are arranged on the oil pipe at intervals, and the packer is arranged between every two adjacent slow-release type tracer real-time water exploration devices between the oil pipe and the horizontal well horizontal section well completion sleeve.

The slow-release tracer real-time water-finding device is arranged in the middle of the corresponding two packers.

the invention discloses a real-time water exploration and water shutoff integrated implementation method for a horizontal well, which is implemented by the integrated tubular column and comprises the following steps:

The method comprises the following steps of (1) running a horizontal well real-time water finding and blocking integrated pipe column to a horizontal well target position, arranging a slow-release tracer real-time water finding device at a preset position of a horizontal well, wherein effective chemical substances of water-soluble tracer carriers of the slow-release tracer real-time water finding devices are different;

Setting the packer, and sealing the horizontal well into a plurality of mutually independent areas, so that reservoir fluid in the areas can only flow into the release cavity from the liquid outlet channel on the corresponding slow-release tracer real-time water finding device; in the release cavity, stratum produced water flushes the water-soluble tracer carriers, so that tracer effective chemical substances are dissolved in the stratum water, and the stratum water carrying the tracer effective chemical substances flows into the central pipe and enters the oil pipe through the switchable sliding sleeve;

The method comprises the steps that a horizontal well is opened for normal production, produced fluid of the horizontal well is sampled and analyzed on the ground, and the water yield of each section of the horizontal well is determined through analysis of the concentrations of effective chemical substances of tracers in a plurality of independent areas;

After the water yield of each section of the horizontal well is determined, screening out the horizontal well sections needing water plugging operation, closing other switchable sliding sleeves of the slow-release tracer real-time water finding devices in the well sections needing no water plugging operation, and only opening the switchable sliding sleeves of the slow-release tracer real-time water finding devices in the well sections needing water plugging operation;

and injecting the water plugging agent into the well section needing water plugging operation to complete the water plugging operation.

and slow-release tracer real-time water finding devices are arranged at the heel part, the middle part and the toe part of the horizontal well.

the release rate of the effective chemical substances of the water-soluble tracer carrier is only influenced by the formation water scouring rate at a preset temperature, and the water-soluble tracer carrier and the formation water scouring rate are in positive correlation.

The water-soluble tracer framework can be resin, and the effective chemical component of the water-soluble tracer can be a chemical tracer or a trace substance tracer.

Compared with the prior art, the invention has the following beneficial effects:

According to the slow-release type tracer real-time water finding device, the reservoir fluid can only enter the release cavity from the liquid outlet channel through the liquid outlet channels at the two ends of the protection tube, and the water-soluble type tracer carrier which is influenced by the water scouring rate of the formation is placed in the release cavity, so that the reservoir fluid can be fully contacted with the tracer carrier after the formation produced water enters the release cavity, the effective chemical components of the tracer in the tracer carrier can be released and dissolved in the formation water, and the water producing part of the horizontal well can be determined by detecting the effective chemical components of the tracer in the formation water. The slow-release tracer real-time water finding device is simple in structure and can accurately and efficiently find water.

According to the invention, a plurality of slow-release tracer real-time water finding devices are arranged on an oil pipe of the horizontal well real-time water finding and plugging integrated pipe column at intervals, a packer is respectively arranged between the oil pipe and a horizontal well horizontal section well completion casing pipe and between two adjacent slow-release tracer real-time water finding devices, a horizontal well can be sealed into a plurality of non-interfering well sections by the aid of the separator, and the slow-release tracer real-time water finding devices are arranged in each well section; the slow-release tracer real-time water finding device can enable reservoir fluid to enter a release cavity only through a liquid outlet channel at two ends of a protection tube, and a water-soluble tracer carrier which is influenced by the water scouring rate of the formation is placed in the release cavity, so that the produced water of the formation can be fully contacted with the tracer carrier after entering the release cavity, and effective chemical components of the tracer in the tracer carrier can be released and dissolved in the formation water; the stratum produced water with the tracer flows into the oil pipe through the switchable sliding sleeve and is finally produced to the ground from the oil pipe; the water yield of each section of the horizontal well can be determined by sampling and analyzing the produced fluid of the horizontal well on the ground; based on the water yield of each section of the horizontal well, the water plugging well sections can be screened; the accurate water plugging operation of the water breakthrough part of the horizontal well can be finally realized by opening and closing the switchable sliding sleeves of the corresponding well sections; in conclusion, the horizontal well real-time water exploration and water shutoff integrated pipe column provided by the invention can realize that one pipe column determines the water production part of the horizontal well and accurately blocks water at the water production part of the horizontal well, solves the problems of the existing horizontal well water exploration and water shutoff technology that the pipe column needs to be pulled out for many times, the operation cost is high, the operation period is long, the equipment is difficult to put in, and the like, and can meet the requirements of economic and efficient water exploration and water shutoff of the horizontal well on a mine site.

According to the effective effect of the horizontal well real-time water exploration and water shutoff integrated pipe column, the water yield of each section of the horizontal well can be quantitatively analyzed by carrying the slow-release tracer, and the adopted integrated pipe column can perform accurate water shutoff operation on the water producing well section of the horizontal well under the condition of no movement of the pipe column after the water producing part of the horizontal well is determined, so that the horizontal well real-time water exploration and water shutoff integrated pipe column has the characteristics of low cost, short operation period and small operation risk; the method can also realize that one string determines the water producing part of the horizontal well and accurately blocks water of the water producing part of the horizontal well, solves the problems of multiple tripping of the string, high operation cost, long operation period, difficulty in equipment tripping and the like in the existing water exploration and blocking technology of the horizontal well, and can meet the economic and efficient water exploration and blocking requirements of the horizontal well on a mine site.

Drawings

FIG. 1 is a schematic structural diagram of a real-time water exploration and water shutoff integrated pipe column of a horizontal well of the invention;

Fig. 2 is a schematic longitudinal section view of the real-time water detection device of the slow-release tracer of the invention.

in the figure: 1-horizontal well heel well section, 2-horizontal well middle well section, 3-horizontal well toe well section, 4-horizontal well horizontal section well completion casing, 5-packer, 6-center tube, 7-slow release type tracer real-time water finding device I, 8-water soluble type tracer carrier I, 9-slow release type tracer real-time water finding device II, 10-water soluble type tracer carrier II, 11-slow release type tracer real-time water finding device III, 12-water soluble type tracer carrier III, 13-liquid outlet channel, 14-protection tube, 15: release chamber, 16-switchable sliding sleeve.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, which are intended to illustrate only one embodiment of the invention, but not to limit the invention, and all simple modifications, changes and other changes made according to the technical spirit of the invention are within the scope of the invention.

Referring to fig. 2, the slow-release tracer real-time water detection device comprises a central tube 6, a switchable sliding sleeve 16, a protection tube 14 and a plurality of water-soluble tracer carriers, wherein the protection tube 14 is coaxially sleeved outside the central tube 6; the cavity between the protection tube 14 and the central tube 6 is a release cavity, the central tube 6 is provided with a switchable sliding sleeve 16 at a position corresponding to the release cavity, the switchable sliding sleeve 16 can enable the release cavity to be communicated or disconnected with the inner cavity of the central tube 6, and water-soluble tracer carriers are fixedly arranged on the two sides of the switchable sliding sleeve 16 of the release cavity; two ends of the protection tube 14 are respectively provided with a liquid outlet channel communicated with the release cavity.

As a preferred embodiment of the invention, the water-soluble tracer carriers fixedly arranged on both sides of the switchable sliding sleeve 16 in the release cavity have the same mass.

As a preferred embodiment of the invention, the mass of the effective chemical substances in the water-soluble tracer carrier is more than or equal to 10 multiplied by the daily water yield of the horizontal well multiplied by 10 multiplied by the tracer detection precision.

As a preferred embodiment of the invention the diameter of the outlet channel 13 is at least 0.850 mm.

as a preferred embodiment of the invention, the diameter of the protective tube 14 is 1.1 to 1.3 times the diameter of the central tube 6.

Referring to fig. 1 and 2, the horizontal well real-time water exploration and water shutoff integrated tubular column comprises an oil pipe, a horizontal well horizontal section completion casing 4, a packer 5 and the slow-release tracer real-time water exploration device, wherein the horizontal well horizontal section completion casing 4 is sleeved outside the oil pipe, a plurality of slow-release tracer real-time water exploration devices are arranged on the oil pipe at intervals, two ends of a central pipe 6 of the slow-release tracer real-time water exploration device are hermetically connected with the oil pipe, the packer 5 is arranged between the oil pipe and the horizontal well horizontal section completion casing 4 and between two adjacent slow-release tracer real-time water exploration devices respectively, and the packer 5 can segment a horizontal well.

as a preferred embodiment of the present invention, the slow release type tracer real-time water-finding device is arranged in the middle of the corresponding two packers 5.

The invention discloses a real-time water exploration and water shutoff integrated implementation method of a horizontal well, which is implemented by the integrated tubular column and comprises the following steps:

The method comprises the following steps of (1) running a horizontal well real-time water finding and blocking integrated pipe column to a horizontal well target position, arranging a slow-release tracer real-time water finding device at a preset position of a horizontal well, wherein effective chemical substances of water-soluble tracer carriers of the slow-release tracer real-time water finding devices are different;

Setting the packer 5, and sealing the horizontal well into a plurality of mutually independent areas, so that reservoir fluid in the areas can only flow into the release cavity from the liquid outlet channel 13 on the corresponding slow-release tracer real-time water finding device; in the release cavity, the stratum produced water flushes the water-soluble tracer carriers, so that the tracer effective chemical substances are dissolved in the stratum water, and the stratum water carrying the tracer effective chemical substances flows into the central pipe 6 and enters the oil pipe through the switchable sliding sleeve 16;

The method comprises the steps that a horizontal well is opened for normal production, produced fluid of the horizontal well is sampled and analyzed on the ground, and the water yield of each section of the horizontal well is determined through analysis of the concentrations of effective chemical substances of tracers in a plurality of independent areas;

After the water yield of each section of the horizontal well is determined, screening out the horizontal well sections needing water plugging operation, closing the switchable sliding sleeves 16 of the slow-release tracer real-time water finding devices in other well sections needing no water plugging operation, and only opening the switchable sliding sleeves 16 of the slow-release tracer real-time water finding devices in the well sections needing water plugging operation;

And injecting the water plugging agent into the well section needing water plugging operation to complete the water plugging operation.

As a preferred embodiment of the invention, the slow-release tracer real-time water-searching devices are arranged at the heel, the middle part and the toe of the horizontal well. The horizontal well is divided into a heel part, a middle part and a toe part from a horizontal initial section to the bottom of the horizontal well.

as a preferred embodiment of the invention, the release rate of the effective chemical substances of the water-soluble tracer carrier is only influenced by the flushing rate of the formation water at the preset temperature, and the release rate and the flushing rate are in positive correlation. The water-soluble tracer framework can be resin, and the effective chemical component of the water-soluble tracer can be a chemical tracer or a trace substance tracer.

referring to fig. 2, in the real-time water exploration device for the slow-release tracer of the invention, the protection pipe 14 is sleeved outside the central pipe 16, the protection pipe 14 can ensure that the tracer carrier can keep integrity in the process of entering the well, and the protection pipe can also ensure that formation fluid can fully contact with the tracer through the liquid outlet channel 13; two ends of the protection pipe 14 are respectively provided with a liquid outlet channel 13, so that reservoir fluid can only enter the release cavity through the liquid outlet channel 13 and fully contact with a tracer carrier, then flows into the central pipe 6 through the switchable sliding sleeve 16 and further flows into the oil pipe, and the water production condition of each well section of the horizontal well can be accurately judged according to the content of each tracer collected by the well mouth.

Referring to fig. 1 and 2, the water-soluble tracer carrier is prepared by respectively mixing epoxy resin with various water-soluble tracer active ingredients.

Referring to fig. 1 and 2, the process of the integrated implementation method for water exploration and water shutoff in real time of the horizontal well comprises the following steps:

Dividing a horizontal well from a horizontal initial section to the bottom of the horizontal well into a heel part, a middle part and a toe part;

Lowering the horizontal well real-time water finding and water plugging integrated tubular column to a target position of the horizontal well through an oil pipe, wherein the heel part, the middle part and the toe part of the horizontal well are uniformly provided with a slow-release tracer real-time water finding device, switchable sliding sleeves 16 in the slow-release tracer real-time water finding devices of the heel part, the middle part and the toe part of the horizontal well are all opened, water-soluble tracer carriers are respectively placed in the slow-release tracer real-time water finding devices of the heel part, the middle part and the toe part of the horizontal well, and effective chemical substances of the water-soluble tracer carriers of all sections are different;

Thirdly, after the integrated pipe column for water exploration and water shutoff in real time of the horizontal well is lowered to the target position of the horizontal well and the packer 5 is set, the heel part, the middle part and the toe part of the horizontal well are sealed into 3 mutually independent areas, so that reservoir fluid in the 3 areas can only flow into the release cavity from the liquid outlet channel 13 of the corresponding slow-release tracer real-time water exploration device; in the release cavity, the stratum produced water flushes the placed water-soluble tracer carriers, so that the tracer effective chemical substances are dissolved in the stratum water, and the stratum water carrying the tracer effective chemical substances flows into the central pipe 6 and the oil pipe through the switchable sliding sleeve;

Fourthly, normal production of the horizontal well is achieved, produced fluid of the horizontal well is sampled and analyzed on the ground, and the concentration of effective chemical substances of tracer agents of the heel part, the middle part and the toe part of the horizontal well is analyzed, so that the water yield of each section of the horizontal well is determined;

After the water yield of each section (namely the heel, the middle and the toe) of the horizontal well is determined, screening out the horizontal well sections needing water plugging operation, closing other switchable sliding sleeves 16 of the sections needing no water plugging operation, and only opening the switchable sliding sleeves 16 of the sections needing water plugging operation;

sixthly, injecting a water plugging medicament into the target interval (namely the well section needing water plugging operation) to finish water plugging operation.

to further illustrate the technical principle of the invention and the horizontal well fluid production profile testing method, the following examples are given:

As shown in figure 1, the initial water content of a horizontal well is 10%, and the daily water yield of the horizontal well is 30m after 3 years of production³And the water content is up to 75%, and water plugging operation is required. The integrated pipe column for water exploration and water shutoff of the horizontal well is lowered to a target position of the horizontal well through an oil pipe, a slow-release tracer real-time water exploration device I7 is placed at a heel well section 1 of the horizontal well, a slow-release tracer real-time water exploration device II 9 is placed at a middle well section 2 of the horizontal well, a slow-release tracer real-time water exploration device III 11 is placed at a middle well section 3 of the horizontal well, and switchable sliding sleeves 16 at the 3 well sections are kept opened; setting the packer 5, so that the horizontal well heel well section 1, the horizontal well middle well section 2 and the horizontal well toe well section 3 are sealed and isolated into 3 mutually independent areas, so that the produced fluid of the horizontal well heel well section 1 can only flow into the oil pipe through the slow-release tracer real-time water-finding device I7, the produced fluid of the horizontal well middle well section 2 can only flow into the oil pipe through the slow-release tracer real-time water-finding device II 9, and the produced fluid of the horizontal well toe well section 3 can only flow into the oil pipe through the slow-release tracer real-time water-finding device III 11. And (3) performing well opening production, and measuring that the content of the effective chemical substances of the water-soluble tracer carrier I7, the content of the effective chemical substances of the water-soluble tracer carrier II 9 and the content of the effective chemical substances of the water-soluble tracer carrier III 11 in the reservoir produced water are 10ppm, 75ppm and 15ppm respectively, so that the middle well section 2 of the horizontal well can be judged to be a main water-breakthrough part of the horizontal well. The switchable sliding sleeves 16 at the heel part 1 of the horizontal well section and the toe part 3 of the horizontal well are closed, and only the switchable sliding sleeves at the middle well section 2 of the horizontal well are kept16 are opened. And injecting a water plugging agent from the wellhead, thereby realizing accurate water plugging operation of the middle well section 2 of the horizontal well.

the invention can accurately judge the water production condition of each well section of the horizontal well according to the content of each tracer collected by the well mouth, and can carry out water plugging operation on any well section of the horizontal well by matching with the application of the switchable sliding sleeve in the slow-release type tracer real-time water finding device. The invention realizes the functions of determining the water production part of the horizontal well and accurately plugging the water production part of the horizontal well by one string, solves the problems of the prior horizontal well water exploration and plugging technology that the string needs to be pulled out for many times, the operation cost is high, the operation period is long, the equipment is difficult to put in, and the like, and can meet the requirements of economic and efficient water exploration and plugging of the horizontal well on a mine site.

In the invention, the number and the positions of monitoring sections, namely the number and the positions of the slow-release tracer real-time water finding devices and the packers, of the horizontal well real-time water finding and blocking integrated tubular column can be designed according to specific conditions such as the length of the horizontal well, a key monitoring target well section, the liquid production capacity of the horizontal well and the like, and the dosage of the slow-release tracer in each slow-release tracer real-time water finding device is designed instead of 3 slow-release tracer real-time water finding devices and 3 slow-release tracers listed in the embodiment.