CN118030044A - Method and device for monitoring productivity profile of long-acting tracer in real time - Google Patents
Method and device for monitoring productivity profile of long-acting tracer in real time Download PDFInfo
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/10—Locating fluid leaks, intrusions or movements
- E21B47/11—Locating fluid leaks, intrusions or movements using tracers; using radioactivity
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/70—Power-operated mechanisms for wings with automatic actuation
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/006—Accessories for drilling pipes, e.g. cleaners
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
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- G—PHYSICS
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- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
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- G06F17/18—Complex mathematical operations for evaluating statistical data, e.g. average values, frequency distributions, probability functions, regression analysis
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Abstract
The invention discloses a method and a device for monitoring productivity profile in real time by a long-acting tracer, and belongs to the technical field of petroleum exploitation. The invention solves the problems that the conventional liquid phase tracer monitoring technology has complex flow, low efficiency and short monitoring period, and does not meet the long-term monitoring requirement of oil and gas wells. The invention installs the long-acting tracer on the production pipe column, it can be oil phase patch tracer, gas phase patch tracer or water phase patch tracer, and cover the long-acting tracer with several openable shields, open when necessary, and monitor the quality change of the long-acting tracer in real time, obtain the release rate of the tracer, evaluate each section of productivity section, it needs to gather the stratum fluid manually in the well head to monitor the technology in the existing technology, then transport to the laboratory and examine and analyze, test and analyze waiting for the result time long, and the sample is influenced by the human factor, the construction flow is complex, the inefficiency scheduling difficult problem.
Description
Technical Field
The invention belongs to the technical field of petroleum exploitation, and particularly relates to a method and a device for monitoring productivity profile of a long-acting tracer in real time.
Background
The acceleration of the construction of a modern energy system is an important support for guaranteeing national energy safety and striving for realizing the internal requirements of carbon peak and carbon neutralization as expected and promoting the realization of high-quality development of economy and society. With the rapid development of petroleum and natural gas resources at home and abroad, people have turned from the original high-permeability reservoir to the low-permeability reservoir, and the low-permeability reservoir is gradually the focus of researches of students. At present, most of the oil and gas reservoirs in China are newly ascertained to be low-permeability oil and gas reservoirs, and the yield of the oil and gas reservoirs accounts for about 70% of the total newly-increased yield in China. The low permeability hydrocarbon reservoirs are widely distributed in the eastern, western and middle parts of China, and have large oil and gas content and rich types, mainly comprise sea phase gas and land phase oil and gas. In the face of deep-ultra-deep, ultra-low permeability and other unconventional oil and gas reservoirs, the traditional technology using logging instruments is difficult to safely reach a test position under complex reservoir and shaft conditions, and the requirement of long-term dynamic monitoring of an oil and gas well cannot be met.
The tracing test technology has become an important means for internationally developing and evaluating unconventional oil and gas reservoirs in recent years, and the technology uses various chemical tracers to enter stratum along with fracturing fluid to mark oil and gas in each producing zone one by one, and can acquire oil and gas well production dynamic data by analyzing and explaining the tracer component information in the produced oil and gas during well production, evaluate various reservoir development effects, and serve as a guiding basis for optimizing development process and adjusting regional development scheme. In the technological process of the conventional liquid phase tracer monitoring technology, after the field test is completed, stratum fluid is collected at a wellhead and then conveyed to a laboratory by special equipment for detection and analysis. The conventional tracing monitoring adopts a liquid phase tracer, the monitoring time is short (less than 1 year), and the long-term monitoring requirement is not met; meanwhile, the conventional tracing monitoring needs manual sampling, and the sampling efficiency is low; after sampling, the sample is required to be sent to a special laboratory for analysis, the waiting time for test analysis is long, and the sampling is influenced by human factors.
Disclosure of Invention
Aiming at the problems that the tracer monitoring technology in the prior art is complex in construction flow, low in efficiency and short in monitoring time, dynamic monitoring cannot be continuously carried out, and long-term monitoring requirements of an oil-gas well are not met, the invention provides a method and a device for monitoring productivity profile in real time by a long-acting tracer.
The technical scheme adopted by the invention is as follows:
a method for monitoring productivity profile in real time by a long-acting tracer, comprising the following steps:
Step A: according to the conditions of each production interval of an oil-gas well, a plurality of long-acting tracers are arranged at corresponding positions on a production tubular column, the long-acting tracers are of a circular cylinder structure, and the inner diameter of each long-acting tracer is The outer diameter is/>Height is/>The long-acting tracer is an oil phase patch tracer, a gas phase patch tracer or a water phase patch tracer, and the long-acting tracer on the production pipe column is covered by a plurality of openable shields;
And (B) step (B): c, putting the production string treated in the step A into an oil-gas well, so that the long-acting tracer on the production string reaches a target interval;
step C: the openable and closable protective cover is controlled to be opened at the beginning of a monitoring period, so that the long-acting tracer is released at a target interval of an oil-gas well, thickness change data of each part of the long-acting tracer are obtained in real time, average change thickness is obtained according to the thickness change data of each part, and quality change data is obtained according to the average change thickness According to the mass change data/>Obtaining the release rate/>, of the long-acting tracer at each analysis momentThe calculation formula is as follows:
Wherein, For a long-acting tracer at the moment of analysisThickness at/oIs the circumference ratio,/>For the volume change of the long-acting tracer at the moment of the analysis,/>For detection time,/>Is the density of the long-acting tracer;
step D: tracer release rate according to each analysis time The productivity profile of each production interval is obtained, and the specific steps are as follows:
(1) Based on the release rate of the long-acting tracer at each moment of analysis Calculating daily output of each layer section by combining daily output liquid data of the oil and gas well;
(2) According to the daily liquid production of each layer section, calculating the accumulated liquid production of each layer section and the accumulated output contribution rate of each layer section, wherein the specific calculation formula is as follows:
Wherein: For/> The segment is at the/>Is a liquid yield of (a);
For/> A long-acting tracer release rate of the segment at each analysis time;
For/> Daily liquid production amount of day;
For/> The accumulated liquid production amount in the monitoring time period;
step E: and after the monitoring period is finished, controlling the openable and closable protective cover to be closed.
After the technical scheme is adopted, the interference of the tracer release in the non-monitoring period to the accuracy of the monitoring result can be reduced through the openable equipment, the accuracy of the monitoring result and the reliability of data interpretation are improved, the tracer release rate can be detected in real time, the productivity profile of each section is evaluated, the problems that the conventional tracing monitoring technology needs to manually collect stratum fluid at a wellhead, then the stratum fluid is conveyed to a laboratory for detection and analysis by special equipment, the waiting time of the test and analysis is long, and the sampling is influenced by human factors, the construction flow is complex, the efficiency is low and the like are solved.
Preferably, in the step A, an oil phase patch tracer or a gas phase patch tracer is used as a first releasable long-acting tracer and is arranged at a first position along the radial length of a production string, an aqueous phase patch tracer is used as a second releasable long-acting tracer and is arranged at a second position along the radial length of the production string, wherein the first releasable long-acting tracer and the second releasable long-acting tracer can be slowly released in response to a perforation column of a target interval so as to be conveniently distinguished from other tracers, and the low dose high-precision detection is carried out by a liquid chromatography-mass spectrometry detection method, the monitoring period of the long-acting tracer is longer than 1 year, the gas phase patch tracer is one of perfluoroalkanes, perfluorocycloalkanes and perfluoroaromatic compounds, the oil phase patch tracer is one of perfluoroalkanoic acid methyl ester and perfluoroalkyl ethyl acrylate, and the aqueous phase patch tracer is one of sodium perfluoroalkanesulfonate or sodium perfluoroalkylcarboxylate.
After the technical scheme is adopted, the interference of the tracer release in the non-monitoring period to the accuracy of the monitoring result can be reduced through the openable equipment, the accuracy of the monitoring result and the reliability of data interpretation are improved, the tracer release rate can be detected in real time, the productivity profile of each section is evaluated, and the problems that the conventional tracing monitoring technology needs to manually collect stratum fluid at a wellhead, then the stratum fluid is conveyed to a laboratory for detection and analysis by special equipment, the waiting time of the test and analysis is long, the sampling is influenced by human factors, the construction flow is complex, the efficiency is low and the like are solved.
The utility model provides a device of long-term tracer real-time supervision productivity section, includes the annular groove that sets up on the production tubular column and each production interval position corresponds, every all be provided with long-term tracer in the annular groove, long-term tracer is oil phase paster tracer, gaseous phase paster tracer or aqueous phase paster tracer, the production tubular column upper shield is equipped with at least one can open and shut guard shield, can open and shut guard shield and long-term tracer position correspond the department and be provided with the hole, can open and shut guard shield and hole correspond the department and be provided with can open and shut the structure, can open and shut and be provided with the thickness detection mechanism that is used for detecting long-term tracer thickness variation on guard shield or the annular groove, can open and shut guard shield and thickness detection mechanism all electricity and be connected with ground controller.
Preferably, the openable and closable protective cover is of a circular cylindrical structure, the openable and closable protective cover comprises a plurality of inner covers and at least one outer cover, the outer cover is sleeved on the outer surface of the long-acting tracer, the inner covers are slidably connected to form the openable and closable structure on the inner surface of the outer cover, a driving mechanism used for driving the inner covers to slide in the outer cover is arranged on the outer cover, the driving mechanism is electrically connected with a ground controller, a plurality of holes are formed in the outer cover, and the positions of the holes correspond to the positions of the long-acting tracer.
Preferably, the outer covers are provided with a plurality of outer covers, each outer cover is provided with an outer cover in each annular groove, each outer cover is internally provided with two inner covers in a sliding mode, the holes are formed in the middle of the outer cover, and the length of the area of the outer cover, where the holes are formed, and the sum of the lengths of the two inner covers are equal to or smaller than the length of the outer cover.
Preferably, the driving mechanisms are arranged in two, each driving mechanism comprises a sliding groove arranged on the inner wall of the outer cover, one end of the inner cover is provided with a sliding block matched with the sliding groove, one end of the sliding groove, far away from the other sliding groove, is provided with an electromagnet, the electromagnet is electrically connected with the ground controller, a magnetic block attracted with the electromagnet in magnetism is arranged on the sliding block, a spring is further arranged between the sliding block and the electromagnet, one end of the spring is fixedly connected with the sliding block, and the other end of the spring is fixedly connected with the electromagnet or the inner wall of the sliding groove, close to the electromagnet, of the sliding groove.
Preferably, the sum of the thickness of the outer cover, the thickness of the inner cover and the thickness of the long-acting tracer is equal to the depth of the annular groove, and the length of the long-acting tracer and the length of the openable shield are matched with the length of the annular groove.
Preferably, the thickness detection mechanism comprises a plurality of thickness detectors arranged in the annular groove, the thickness detectors are uniformly distributed around the circumference of the annular groove, each thickness detector is electrically connected with a ground controller, and the ground controller is electrically connected with data processing equipment.
Preferably, the length of the annular groove matches the length of each production interval, and the depth of the annular groove matches the size of the production string and the duration of the monitoring period.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. The openable shield can reduce the interference of the release of the tracer in the non-monitoring period to the accuracy of the monitoring result, and improves the accuracy of the monitoring result and the reliability of data interpretation.
2. The tracer release rate can be detected in real time, and the productivity profile of each section is evaluated, so that the problems that the conventional tracer monitoring technology needs to manually collect formation fluid at a wellhead, then the formation fluid is transported to a laboratory for detection and analysis by special equipment, the waiting time of the detection and analysis results is long, sampling is influenced by human factors, the construction process is complex, the efficiency is low and the like are solved.
3. The invention adopts a circular cylinder long-acting patch tracer, has slow release performance, can meet the long-term monitoring requirement of an oil gas well, has a monitoring period of more than 1 year, is one of perfluoroalkanes, perfluorocycloalkanes and perfluoroaromatic compounds, is one of perfluoroalkanoic acid methyl ester and perfluoroalkyl ethyl acrylate, and is one of sodium perfluoroalkyl sulfonate or sodium perfluoroalkyl carboxylate.
4. According to the method, the thickness variation of each part of the long-acting tracer is detected to obtain the thickness variation average value of the long-acting tracer, the volume variation value of the long-acting tracer is obtained according to the thickness variation average value, the mass variation of the long-acting tracer is obtained according to the volume and the density of the long-acting tracer, and finally the release rate of the long-acting tracer is obtained according to the mass variation, so that the release rate of the long-acting tracer can be directly obtained without taking out a production tubular column, and the detection efficiency is improved.
5. The invention provides a calculation formula of the accumulated liquid yield of each layer section and the accumulated output contribution rate of each layer section, and the productivity section of each production layer section can be calculated according to the formula.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the inner cover of the openable cover when closed;
FIG. 3 is a schematic view of the structure of the openable shield with the inner cover open;
FIG. 4 is a schematic diagram of a driving mechanism;
FIG. 5 is a schematic diagram of the positional relationship between the annular groove and the thickness detector;
FIG. 6 is a graph comparing the results of the gas production ratios of example 1;
FIG. 7 is a graph comparing the results of the oil production ratio of example 2;
FIG. 8 is a graph showing the comparison of the water production ratio results of example 2;
The device comprises a 1-production pipe column, a 2-openable shield, a 201-outer cover, a 202-inner cover, 203-holes, 204-sliding blocks, 205-sliding grooves, 206-springs, 207-electromagnets, a 3-oil-gas well, a 4-ground controller, 5-data processing equipment, a 6-annular groove and a 7-thickness detector.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present application.
In describing embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. refer to an azimuth or a positional relationship based on that shown in the drawings, or that the inventive product is conventionally put in place when used, merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Example 1
The method is carried out by adopting a device for monitoring productivity profile in real time by a long-acting tracer, in the embodiment, a shale gas horizontal well is produced by adopting an open hole well completion and an oil pipe, the inclined depth is 7070 meters (the vertical depth is 5142.99 meters), the horizontal section is 1550 meters long, the maximum well inclination of the whole well is 91.99 degrees, the corresponding well depth is 6335.63m, the closing direction is 209.58 degrees, the maximum closing distance is 2169.84m, the well is divided into 9 development intervals by a packer, and each interval is 100-300 m. The well gas profile was tested using 9 gas phase patch tracers, with a design monitoring cycle of 1 year and half. The 9 gas-phase long-acting tracers suitable for the horizontal well are screened out through carrying out compatibility experiments, static adsorption experiments, temperature and pressure resistance experiments, biotoxicity experiments and radioactivity experiments of the long-acting tracers, wherein the gas-phase patch tracers can be perfluoroalkanes, perfluorocycloalkanes and perfluoroaromatic compounds, and in the embodiment, the perfluoroaromatic compounds.
As shown in fig. 1-3, the device for monitoring the capacity profile of the long-acting tracer in real time comprises annular grooves 6 which are arranged on the production pipe column 1 and correspond to the positions of all production intervals, each annular groove 6 is internally provided with the long-acting tracer, the long-acting tracer is a gas-phase patch tracer, the specification of the tracer is (inner diameter-outer diameter-length) 85.9x88.9x10 mm, each annular groove 6 is internally provided with an openable shield 2, the openable shield 2 is covered on the long-acting tracer, as shown in fig. 5, each annular groove 6 is provided with a thickness detection mechanism for detecting thickness change of the long-acting tracer, and the openable shield 2 and the thickness detection mechanism are electrically connected with a ground controller 4.
In this embodiment, the openable and closable guard 2 is a circular cylindrical structure, and the openable and closable guard 2 includes an inner cover 202 and an outer cover 201, the outer cover 201 is sleeved on the outer surface of the gas-phase patch tracer, the inner cover 202 is slidably connected to the inner surface of the outer cover 201, a driving mechanism for driving the inner cover 202 to slide in the outer cover 201 is arranged on the outer cover 201, the driving mechanism is electrically connected with the ground controller 4, a plurality of holes 203 are formed in the outer cover 201, the positions of the holes 203 correspond to the positions of the long-acting tracer, the length of each outer cover 201 is 24mm, the length of an opening area is 10mm, and the length of each inner cover 202 is 7mm.
In this embodiment, two inner covers 202 are provided, the hole 203 is provided in the middle of the outer cover 201, and the length of the region of the outer cover 201 where the hole 203 is provided and the sum of the lengths of the two inner covers 202 are equal to the length of the outer cover 201.
In this embodiment, as shown in fig. 5, the thickness detection mechanism includes a plurality of thickness detectors 7 disposed in the annular groove 6, the plurality of thickness detectors 7 are uniformly disposed around the circumference of the annular groove 6, each thickness detector 7 is electrically connected with the ground controller 4, and the ground controller 4 is electrically connected with the data processing device 5.
In this embodiment, as shown in fig. 4, two driving mechanisms are provided, each driving mechanism includes a sliding groove 205 disposed on an inner wall of the outer cover 201, one end of the inner cover 202 is provided with a sliding block 204 matched with the sliding groove 205, one end of the sliding groove 205 away from the other sliding groove 205 is provided with an electromagnet 207, the electromagnet 207 is electrically connected with the ground controller 4, a magnetic block magnetically attracted with the electromagnet 207 is disposed on the sliding block 204, a spring 206 is further disposed between the sliding block 204 and the electromagnet 207, one end of the spring 206 is fixedly connected with the sliding block 204, and the other end is fixedly connected with the inner wall of the sliding groove 205 close to the electromagnet 207.
In this embodiment, the sum of the thickness of the outer cover 201, the thickness of the inner cover 202 and the thickness of the long-acting tracer is equal to the depth of the annular groove 6, and the length of the long-acting tracer and the length of the openable cover 2 are matched with the length of the annular groove 6.
The method comprises the following specific steps:
step A: according to the conditions of each production interval of an oil-gas well, an annular groove 6 is formed in a corresponding position on a production pipe column 1, a long-acting tracer is arranged in the annular groove 6, the long-acting tracer is a gas-phase patch tracer, and an openable shield 2 is arranged on each long-acting tracer;
And (B) step (B): c, placing the production pipe column 1 treated in the step A into an oil-gas well 3, and enabling the long-acting tracers on all parts of the production pipe column 1 to reach corresponding production intervals respectively;
Step C: when the long-acting tracer needs to be released, the electromagnet 207 is controlled to be electrified through the ground controller 4, the sliding block 204 drives the inner cover 202 to move towards the direction close to the electromagnet 207 under the action of the attraction force generated by the electromagnet 207, and the spring 206 is compressed, so that the long-acting tracer can be released from the hole 203 on the outer cover 201 (the oil phase patch tracer is released when only contacting with the oil phase, the water phase patch tracer is released when only contacting with the water phase, and the gas phase patch tracer is released when only contacting with the gas phase); through the several thickness detector 7 that annular groove 6 bottom set up, in this embodiment, thickness detector 7 is laser thickness sensor, detects the thickness at each position of annular long-acting tracer through thickness detector 7, then seeks the average value to obtain the thickness of annular tracer, then release rate according to following formula:
Wherein, For a long-acting tracer at the moment of analysisThickness at/oIs the circumference ratio,/>For the volume change of the long-acting tracer at the moment of the analysis,/>For detection time,/>Is the density of the long-acting tracer;
step D: tracer release rate according to each analysis time The productivity profile of each production interval is obtained, and the specific steps are as follows:
(1) Based on the release rate of the long-acting tracer at each moment of analysis Calculating daily output of each interval by combining daily fluid data of the well;
(2) According to the daily liquid production of each layer section, calculating the accumulated liquid production of each layer section and the accumulated output contribution rate of each layer section, wherein the specific calculation formula is as follows:
Wherein: For/> The segment is at the/>The daily liquid yield;
For/> The tracer release rate of the segment at each analysis time;
For/> Daily liquid production amount of day;
For/> The period is the cumulative liquid production during the monitoring period.
Step E: and (C) repeating the steps (D) to finish data acquisition at a plurality of time points, and controlling the openable and closable protective cover 2 to be closed through the ground controller (4) after the monitoring period is finished, specifically, the ground controller (4) cuts off the power of the electromagnet (207), the magnetic force of the electromagnet (207) disappears, and the inner cover (202) moves towards the other inner cover (202) under the action of the restoring force of the spring (206) until the two inner covers (202) are contacted, so that all holes (203) are covered.
Loading of long-acting tracers to the groundAnd (3) on the oil pipe, testing and sampling are started after the gas is detected. The device is used for testing and sampling at a wellhead, and is sent to a laboratory for detection and analysis, and each sample is sampled by 1L. The flow back of the gas is carried out until the test production is carried out (at least 4 samples are taken during the test production period), 30 samples are taken altogether, 1 sample is taken every 3 days from half a year after the test is finished, and 1 sample is taken every 5 days from half a year to one year; taking 1 time every 7 days after well crossing, taking 3 gas samples (parallel sample calibration) each time, collecting 116 gas samples altogether, and screening and analyzing 90 gas samples.
The data obtained by the real-time online monitoring system is quantitatively analyzed to obtain the gas production profile of each section, the gas production profile is sampled at the wellhead of the conventional well and is compared with the test result of detection analysis carried out in a laboratory, the test result is shown in the table 1 and the table 6, and the table 1 and the table 6 show that the detection result of the invention has high coincidence degree with the detection result of the conventional well detection method, and the result is reliable and accurate. Each section of the well is sampled at a wellhead and sent to a laboratory for detection, and the invention can obtain the gas production duty ratio result in real time by real-time online detection, thereby being more intelligent, greatly improving the operation efficiency and saving the operation cost, and being an intelligent system in the production field;
TABLE 1
Example 2
This embodiment is substantially the same as embodiment 1 except that: in the embodiment, a shale oil horizontal well is produced by adopting an open hole completion and an oil pipe, the horizontal section is 1000m long, the maximum well deviation of the whole well is 90.86 degrees, the well is divided into 8 development intervals by a packer, and each interval is 150-300 m. The well oil production profile and water production ratio were tested using 8 oil phase patch tracers and 8 water phase patch tracers, and the monitoring period was designed for 3 years. The long-acting tracer in this embodiment is an oil phase patch tracer and a water phase patch tracer, and the oil phase patch tracer may be one of methyl perfluoroalkanoate and perfluoroalkyl ethyl acrylate, in this embodiment, perfluoroalkyl ethyl acrylate; the aqueous phase patch tracer may be sodium perfluoroalkylsulfonate or sodium perfluoroalkylcarboxylate, in this example sodium perfluoroalkylcarboxylate; the data obtained by the real-time online monitoring system of the invention is quantitatively analyzed to obtain productivity profiles of each section, the productivity profiles are sampled at the wellhead with a conventional well, and the productivity profiles are compared with test results of detection analysis carried out in a laboratory, wherein the test results are shown in table 2, fig. 7 and fig. 8:
TABLE 2
From table 2, fig. 7 and fig. 8, it can be seen that the detection result of the present invention has high coincidence with the detection result of the conventional well detection method, and the result is reliable and accurate.
The above examples merely illustrate specific embodiments of the application, which are described in more detail and are not to be construed as limiting the scope of the application. It should be noted that it is possible for a person skilled in the art to make several variants and modifications without departing from the technical idea of the application, which fall within the scope of protection of the application.
Claims (9)
1. A method for monitoring productivity profile of a long-acting tracer in real time is characterized by comprising the following steps of: the method comprises the following steps:
Step A: according to the conditions of each production interval of an oil-gas well, a plurality of long-acting tracers are arranged at corresponding positions on a production tubular column (1), the long-acting tracers are of a circular cylinder structure, and the inner diameter of the long-acting tracers is equal to that of the circular cylinder structure The outer diameter is/>Height is/>The long-acting tracer is an oil phase patch tracer, a gas phase patch tracer or a water phase patch tracer, and the long-acting tracer on the production pipe column (1) is covered by a plurality of openable shields (2);
And (B) step (B): c, the production pipe column (1) treated in the step A is put into an oil-gas well, so that the long-acting tracer on the production pipe column (1) reaches a target interval;
Step C: the openable shield (2) is controlled to be opened at the beginning of a monitoring period, so that the long-acting tracer is released at a target interval of an oil-gas well, thickness change data of each part of the long-acting tracer are obtained in real time, average change thickness is obtained according to the thickness change data of each part, and quality change data is obtained according to the average change thickness According to the mass change data/>Obtaining the release rate/>, of the long-acting tracer at each analysis momentThe calculation formula is as follows:
wherein/> For a long-acting tracer at the moment of analysisThickness at/oIs the circumference ratio,/>For the volume change of the long-acting tracer at the moment of the analysis,/>For detection time,/>Is the density of the long-acting tracer;
step D: tracer release rate according to each analysis time The productivity profile of each production interval is obtained, and the specific steps are as follows:
(1) Based on the release rate of the long-acting tracer at each moment of analysis Calculating daily output of each layer section by combining daily output liquid data of the oil and gas well;
(2) According to the daily liquid production of each layer section, calculating the accumulated liquid production of each layer section and the accumulated output contribution rate of each layer section, wherein the specific calculation formula is as follows:
Wherein: /(I) For/>The segment is at the/>The daily liquid yield;
For/> A long-acting tracer release rate of the segment at each analysis time;
For/> Daily liquid production amount of day;
For/> The accumulated liquid production amount in the monitoring time period;
step E: and after the monitoring period is finished, the openable and closable protective cover (2) is controlled to be closed.
2. A method for monitoring throughput profile in real time with a long-acting tracer as claimed in claim 1 wherein: in the step A, an oil-phase patch tracer or a gas-phase patch tracer can be used as a first releasable long-acting tracer to be arranged at a first position along the radial length of the production tubular column (1), an aqueous-phase patch tracer is used as a second releasable long-acting tracer to be arranged at a second position along the radial length of the production tubular column (1), wherein the first releasable long-acting tracer and the second releasable long-acting tracer can be slowly released in response to a perforation column of a target interval, are convenient to distinguish from other tracers, and are detected with high precision in a low dose by a liquid chromatography-mass spectrometry detection method, the monitoring period of the long-acting tracer is longer than 1 year, the gas-phase patch tracer is one of perfluoroalkanes, perfluorocycloalkanes and perfluoroaromatic compounds, the oil-phase patch tracer is one of perfluoroalkanoic acid methyl ester and perfluoroalkylethyl acrylate, and the aqueous-phase patch tracer is one of sodium perfluoroalkylsulfonate or sodium perfluoroalkylcarboxylate.
3. The utility model provides a device of long-term tracer real-time supervision productivity section which characterized in that: including setting up on production tubular column (1) with each annular groove (6) that production interval position corresponds, every all be provided with long-term tracer in annular groove (6), long-term tracer is oil phase paster tracer, gaseous phase paster tracer or aqueous phase paster tracer, production tubular column (1) upper shield is equipped with at least one can open and shut guard shield (2), can open and shut guard shield (2) and long-term tracer position department of corresponding are provided with hole (203), can open and shut guard shield (2) and hole (203) department of corresponding are provided with can open and shut the structure, can be provided with the thickness detection mechanism who is used for detecting long-term tracer thickness variation on can open and shut guard shield (2) or annular groove (6), can open and shut guard shield (2) and thickness detection mechanism all are electrically connected with ground controller (4).
4. A device for monitoring throughput profile in real time with a long-acting tracer as claimed in claim 3 wherein: the openable guard shield (2) is circular tube-shape structure, just openable guard shield (2) include several inner cover (202) and at least one dustcoat (201), dustcoat (201) cover is established the surface of long-acting tracer, inner cover (202) sliding connection is in form openable structure on the internal surface of dustcoat (201), be provided with on dustcoat (201) and be used for driving inner cover (202) gliding actuating mechanism in dustcoat (201), actuating mechanism is connected with ground controller (4) electricity, and the several hole (203) are seted up on dustcoat (201), the position of hole (203) corresponds with the position of long-acting tracer.
5. The apparatus for monitoring throughput profile in real time with a long-acting tracer of claim 4, wherein: the outer cover (201) is provided with a plurality of outer covers (201), each outer cover (201) is provided with an outer cover (201) in each annular groove (6), two inner covers (202) are connected in a sliding mode in each outer cover (201), the holes (203) are formed in the middle of the outer cover (201), and the sum of the length of the area, where the holes (203) are formed in the outer cover (201), of the two inner covers (202) is equal to or smaller than the length of the outer cover (201).
6. The apparatus for monitoring throughput profile in real time with a long-acting tracer of claim 5, wherein: the driving mechanism is provided with two, every driving mechanism all includes spout (205) of setting on dustcoat (201) inner wall, one end of inner cover (202) be provided with spout (205) complex slider (204), one end that another spout (205) was kept away from to spout (205) is provided with electro-magnet (207), electro-magnet (207) are connected with ground controller (4) electricity, be provided with the magnetic path that attracts mutually with electro-magnet (207) magnetism on slider (204), still be provided with spring (206) between slider (204) and electro-magnet (207) one end and slider (204) fixed connection of spring (206), the other end with electro-magnet (207) or be close to spout (205) inner wall fixed connection of electro-magnet (207).
7. A device for monitoring throughput profile in real time for a long-acting tracer as claimed in any one of claims 5 to 6 wherein: the sum of the thickness of the outer cover (201), the thickness of the inner cover (202) and the thickness of the long-acting tracer is equal to the depth of the annular groove (6), and the length of the long-acting tracer and the length of the openable shield (2) are matched with the length of the annular groove (6).
8. A device for monitoring throughput profile in real time for a long-acting tracer as claimed in any one of claims 3 to 6 wherein: the thickness detection mechanism comprises a plurality of thickness detectors (7) arranged in the annular groove (6), the thickness detectors (7) are uniformly distributed around the circumference of the annular groove (6), each thickness detector (7) is electrically connected with a ground controller (4), and the ground controller (4) is electrically connected with a data processing device (5).
9. A device for monitoring throughput profile in real time for a long-acting tracer as claimed in any one of claims 3 to 6 wherein: the length of the annular groove (6) is matched with the length of each production interval, and the depth of the annular groove (6) is matched with the size of the production string (1) and the duration of a monitoring period.
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180038223A1 (en) * | 2015-02-27 | 2018-02-08 | Resman As | Petroleum well tracer release flow shunt chamber |
| CN207245703U (en) * | 2017-09-15 | 2018-04-17 | 中国海洋石油总公司 | Horizontal well produced fluid cross section tubing string |
| CN210460645U (en) * | 2019-07-22 | 2020-05-05 | 单永斌 | Tracer nipple for well bore and stratum water exploration |
| CN210714678U (en) * | 2019-08-09 | 2020-06-09 | 中国石油天然气股份有限公司 | Tracer nipple for testing oil well liquid production profile |
| CN211500625U (en) * | 2019-12-30 | 2020-09-15 | 固安国勘石油技术有限公司 | Slow-release patch tracer bearing short joint |
| CN211718202U (en) * | 2019-10-09 | 2020-10-20 | 东营市洁东石油技术开发有限公司 | Be used for interwell tracer monitoring facilities |
| CN211809804U (en) * | 2020-01-19 | 2020-10-30 | 国家电网有限公司 | Reservoir monitoring well parameter monitoring and tracer feeding device |
| WO2020239649A2 (en) * | 2019-05-24 | 2020-12-03 | Resman As | Tracer release system and method of detection |
| CN112593928A (en) * | 2020-05-29 | 2021-04-02 | 中国海洋石油集团有限公司 | Method for monitoring production fluid profile of horizontal well with medium and high water content for long time by using tracer |
| CN216691071U (en) * | 2022-01-11 | 2022-06-07 | 四川捷贝通能源科技有限公司 | Oil gas well paster spike agent input device |
| US20230003110A1 (en) * | 2019-12-05 | 2023-01-05 | Ncs Multistage Inc. | Convertible tracer valve assemblies and related methods for fracturing and tracing |
| CN115614028A (en) * | 2021-07-13 | 2023-01-17 | 西安思坦油气工程服务有限公司 | Tracer water finding tool and tracer liquid production profile water finding method |
| CN116044366A (en) * | 2022-12-28 | 2023-05-02 | 捷贝通石油技术集团股份有限公司 | Long-acting tracing real-time monitoring method for perforation, fracturing and production stages of oil and gas reservoir |
| WO2023105060A1 (en) * | 2021-12-10 | 2023-06-15 | Resman As | System and method for reservoir flow surveillance |
| CN219262357U (en) * | 2023-03-01 | 2023-06-27 | 四川省威沃敦化工有限公司 | Quantum tracing device for oil-gas well and well completion pipe |
-
2024
- 2024-02-29 CN CN202410226565.5A patent/CN118030044B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180038223A1 (en) * | 2015-02-27 | 2018-02-08 | Resman As | Petroleum well tracer release flow shunt chamber |
| CN207245703U (en) * | 2017-09-15 | 2018-04-17 | 中国海洋石油总公司 | Horizontal well produced fluid cross section tubing string |
| WO2020239649A2 (en) * | 2019-05-24 | 2020-12-03 | Resman As | Tracer release system and method of detection |
| CN210460645U (en) * | 2019-07-22 | 2020-05-05 | 单永斌 | Tracer nipple for well bore and stratum water exploration |
| CN210714678U (en) * | 2019-08-09 | 2020-06-09 | 中国石油天然气股份有限公司 | Tracer nipple for testing oil well liquid production profile |
| CN211718202U (en) * | 2019-10-09 | 2020-10-20 | 东营市洁东石油技术开发有限公司 | Be used for interwell tracer monitoring facilities |
| US20230003110A1 (en) * | 2019-12-05 | 2023-01-05 | Ncs Multistage Inc. | Convertible tracer valve assemblies and related methods for fracturing and tracing |
| CN211500625U (en) * | 2019-12-30 | 2020-09-15 | 固安国勘石油技术有限公司 | Slow-release patch tracer bearing short joint |
| CN211809804U (en) * | 2020-01-19 | 2020-10-30 | 国家电网有限公司 | Reservoir monitoring well parameter monitoring and tracer feeding device |
| CN112593928A (en) * | 2020-05-29 | 2021-04-02 | 中国海洋石油集团有限公司 | Method for monitoring production fluid profile of horizontal well with medium and high water content for long time by using tracer |
| CN115614028A (en) * | 2021-07-13 | 2023-01-17 | 西安思坦油气工程服务有限公司 | Tracer water finding tool and tracer liquid production profile water finding method |
| WO2023105060A1 (en) * | 2021-12-10 | 2023-06-15 | Resman As | System and method for reservoir flow surveillance |
| CN216691071U (en) * | 2022-01-11 | 2022-06-07 | 四川捷贝通能源科技有限公司 | Oil gas well paster spike agent input device |
| CN116044366A (en) * | 2022-12-28 | 2023-05-02 | 捷贝通石油技术集团股份有限公司 | Long-acting tracing real-time monitoring method for perforation, fracturing and production stages of oil and gas reservoir |
| CN219262357U (en) * | 2023-03-01 | 2023-06-27 | 四川省威沃敦化工有限公司 | Quantum tracing device for oil-gas well and well completion pipe |
Non-Patent Citations (1)
| Title |
|---|
| 黎明等: "复杂储层低流量注入剖面测井方法评价", 《石油天然气学报》, 31 October 2011 (2011-10-31), pages 94 - 98 * |
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