CN114859018A - Performance test method, device, equipment and storage medium for testing working fluid entering well - Google Patents
Performance test method, device, equipment and storage medium for testing working fluid entering well Download PDFInfo
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Abstract
The disclosure discloses a performance testing method, a device, equipment and a storage medium for a test oil well working fluid, and belongs to the technical field of oil and gas exploitation. The method comprises the following steps: acquiring preliminary evaluation information, wherein the preliminary evaluation information is obtained by mixing a test oil well working fluid and a drilling fluid in a target oil well according to a specified proportion, and carrying out aging treatment at a well temperature and then measuring; acquiring normal-temperature stability evaluation information, wherein the normal-temperature stability evaluation information is obtained after standing the mixed solution at normal temperature; acquiring well temperature standing stability evaluation information, wherein the well temperature standing stability evaluation information is obtained after standing the aged mixed solution at the well temperature; and determining the compatibility of the test oil well working fluid and the drilling fluid according to at least one of the preliminary evaluation information, the normal temperature stability evaluation information and the well temperature standing stability evaluation information. The scheme can improve the quality control effect on the test oil well-entering liquid.
Description
Technical Field
The disclosure relates to the technical field of oil and gas exploitation, in particular to a performance testing method, a device, equipment and a storage medium for a working fluid for testing oil entering a well.
Background
In the oil testing operation, the performance of the oil testing working fluid has important influence on the accuracy of the oil testing result and the safety of the oil testing operation.
In the related technology, when an engineer tests the performance of the test oil working fluid, the parameters of the test oil working fluid such as density, sedimentation stability, high-temperature and high-pressure filtration loss, corrosion rate and the like are mainly tested, so that the quality of the test oil working fluid is controlled.
However, because the downhole environments or conditions of different oil wells usually differ greatly, the quality requirements for the test oil working fluid are also inconsistent, and the current performance test scheme for the test oil working fluid has a poor effect on the quality control of the test oil working fluid.
Disclosure of Invention
The disclosure provides a performance test method for a test oil well working fluid. The technical scheme is as follows:
in one aspect, a performance test method for a well testing working fluid is provided, and the method comprises the following steps:
acquiring preliminary evaluation information, wherein the preliminary evaluation information is obtained by mixing a test oil well working fluid and a drilling fluid in a target oil well according to a specified proportion to obtain a mixed solution, carrying out a first time aging treatment on the mixed solution at the well temperature of the target oil well to obtain an aged mixed solution, and measuring the apparent viscosity of the aged mixed solution; the preliminary evaluation information includes a first apparent viscosity increase, which is an increase in the apparent viscosity of the mixed liquor after aging relative to the apparent viscosity of the mixed liquor;
obtaining normal-temperature stability evaluation information, wherein the normal-temperature stability evaluation information is obtained after standing the mixed solution for a second time at normal temperature; the normal temperature stability evaluation information comprises whether the mixed solution is layered or not and whether the mixed solution has hard sediment or not;
obtaining well temperature standing stability evaluation information, wherein the well temperature standing stability evaluation information is obtained by standing the aged mixed solution for a third time at the well temperature; the well temperature standing stability evaluation information comprises whether the standing aged mixed solution has hard precipitate or not and the target parameter amplification of the standing aged mixed solution; the target parameter amplification is the amplification of the target parameter of the static aged mixed liquor relative to the target parameter of the mixed liquor; the target parameters comprise at least one of density difference of an upper layer and a lower layer, apparent viscosity, final shear force and high-temperature and high-pressure filtration loss;
and determining the compatibility of the test oil well working fluid and the drilling fluid according to at least one of the preliminary evaluation information, the normal temperature stability evaluation information and the well temperature standing stability evaluation information.
In one possible implementation manner, the mixed liquid is obtained by mixing the test oil well working fluid and the drilling fluid according to at least two specified proportions, wherein the proportions of the mixed liquid are at least two proportions;
the first increase in apparent viscosity is a maximum of increases in apparent viscosity of the aged mixed liquid relative to the apparent viscosity of the mixed liquid in at least two proportions;
the target parameter amplification is the maximum value of the target parameter amplification of the standing aged mixed liquor relative to the target parameter amplification of the mixed liquor in at least two proportions.
In one possible implementation manner, the acquiring of the well temperature static stability evaluation information includes:
and when the first apparent viscosity amplification is smaller than a first amplification threshold value and the normal-temperature stability evaluation information indicates that the mixed solution is not layered and hard sediment, executing the step of obtaining the well-temperature standing stability evaluation information.
In one possible implementation, the first amplification threshold is 15%.
In a possible implementation manner, the determining the compatibility of the test oil working fluid and the drilling fluid according to at least one of the preliminary evaluation information, the normal temperature stability evaluation information, and the well temperature standing stability evaluation information includes:
and when the well temperature standing stability evaluation information indicates that the standing aged mixed liquid has no hard precipitate and the target parameter amplification of the standing aged mixed liquid is smaller than a second amplification threshold value, determining that the compatibility of the test oil well working fluid and the drilling fluid meets the qualified condition.
In one possible implementation, the second amplification threshold is 15%.
In a possible implementation manner, the determining the compatibility of the test oil well working fluid and the drilling fluid according to at least one of the preliminary evaluation information, the normal temperature stability evaluation information, and the well temperature standing stability evaluation information includes:
and when the first apparent viscosity increase in the preliminary evaluation information is larger than a third increase threshold value, determining that the compatibility of the test oil well working fluid and the drilling fluid does not meet the qualified condition.
In one possible implementation, the third amplification threshold is 15%.
In a possible implementation manner, the determining the compatibility of the test oil well working fluid and the drilling fluid according to at least one of the preliminary evaluation information, the normal temperature stability evaluation information, and the well temperature standing stability evaluation information includes:
and when the normal-temperature stability evaluation information indicates that the mixed solution is layered or indicates that the mixed solution has hard precipitate, determining that the compatibility of the test oil well-entering working fluid and the drilling fluid does not meet the qualified conditions.
In one possible implementation, the first time period is 16 hours; the second time period is 72 hours; the third time period is 10 days.
In one aspect, a performance testing apparatus for testing the performance of a well-entering working fluid is provided, the apparatus comprising:
the first acquisition module is used for acquiring preliminary evaluation information, wherein the preliminary evaluation information is obtained by mixing a test well working fluid and a drilling fluid in a target oil well according to a specified proportion to obtain a mixed solution, carrying out a first time-long aging treatment on the mixed solution at the well temperature of the target oil well to obtain an aged mixed solution, and measuring the apparent viscosity of the aged mixed solution; the preliminary evaluation information includes a first apparent viscosity increase, which is an increase in the apparent viscosity of the mixed liquor after aging relative to the apparent viscosity of the mixed liquor;
the second acquisition module is used for acquiring normal-temperature stability evaluation information, and the normal-temperature stability evaluation information is obtained after the mixed liquid is kept still for a second time at normal temperature; the normal temperature stability evaluation information comprises whether the mixed solution is layered or not and whether the mixed solution has hard sediment or not;
the third acquisition module is used for acquiring well temperature standing stability evaluation information, and the well temperature standing stability evaluation information is acquired by standing the aged mixed solution for a third time at the well temperature; the well temperature standing stability evaluation information comprises whether the standing aged mixed solution has hard precipitate or not and the target parameter amplification of the standing aged mixed solution; the target parameter amplification is the amplification of the target parameter of the static aged mixed liquor relative to the target parameter of the mixed liquor; the target parameters comprise at least one of density difference of an upper layer and a lower layer, apparent viscosity, final shear force and high-temperature and high-pressure filtration loss;
and the compatibility determining module is used for determining the compatibility of the test oil well working fluid and the drilling fluid according to at least one of the preliminary evaluation information, the normal temperature stability evaluation information and the well temperature standing stability evaluation information.
In one aspect, a computer device is provided, the computer device comprising a processor and a memory, the memory having stored therein at least one instruction, at least one program, set of codes, or set of instructions, which is loaded and executed by the processor to implement the above-described method for testing the performance of a test run into a well working fluid.
In one aspect, a computer readable storage medium having stored therein at least one instruction, at least one program, set of codes, or set of instructions, which is loaded and executed by a processor to implement the above-described method for testing the performance of a test run-in working fluid is provided.
In one aspect, a computer program product is provided that includes computer instructions stored in a computer readable storage medium. The computer instructions are read by a processor of the computer device from the computer readable storage medium, and the computer instructions are executed by the processor to cause the computer device to execute the performance testing method for the test run-in-well working fluid provided in the various alternative implementations of the above aspects.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
the method comprises the steps of mixing a test oil working fluid into a well with a drilling fluid in a target oil well, testing the mixed fluid under the conditions of aging, standing at normal temperature and standing at normal temperature after aging to obtain evaluation information of the mixed fluid, and determining the compatibility of the test oil working fluid into the well with the drilling fluid in the target oil well through at least one of the evaluation information obtained under the three conditions, so that a scheme for evaluating the performance of the test oil working fluid into the target oil well through the compatibility of the test oil working fluid into the well and the drilling fluid is provided, the evaluation standard of the test oil working fluid into the well is expanded, the accurate quality evaluation of the test oil working fluid into the well can be given out respectively according to different oil wells, and the quality control effect of the test oil working fluid into the well is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a schematic diagram illustrating a system for testing the performance of a test run-in-well fluid in accordance with an exemplary embodiment;
FIG. 2 is a method flow diagram illustrating a method for testing the performance of a test run into a well fluid in accordance with an exemplary embodiment;
FIG. 3 is a method flow diagram illustrating a method for testing the performance of a test run into a well fluid in accordance with an exemplary embodiment;
FIG. 4 is a block diagram illustrating a test rig for testing the performance of a well servicing fluid according to an exemplary embodiment;
FIG. 5 is a schematic diagram illustrating a configuration of a computer device, according to an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
It is to be understood that reference herein to "a number" means one or more and "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
To make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all embodiments of the present disclosure. The components of the embodiments of the present disclosure, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present disclosure, presented in the figures, is not intended to limit the scope of the claimed disclosure, but is merely representative of selected embodiments of the disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without inventive step, are intended to be within the scope of the present disclosure.
It should be noted that, in the present disclosure, the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present disclosure, it should be noted that the indication of the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product is used, or the orientation or positional relationship which is usually understood by those skilled in the art, or the orientation or positional relationship which is usually placed when the product is used, and is only for convenience of describing and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present disclosure. Furthermore, the terms "first" and "second" are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present disclosure, it should also be noted that the terms "disposed" and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present disclosure can be understood in specific instances by those of ordinary skill in the art; the drawings in the embodiments are used for clearly and completely describing the technical scheme in the embodiments of the disclosure, and obviously, the described embodiments are a part of the embodiments of the disclosure, but not all the embodiments. The components of the embodiments of the present disclosure, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
The oil testing is to make the fluid (including oil, gas and water) in the stratum enter the shaft and flow out of the ground through perforation, alternate jetting, induced jetting and other ways. Therefore, the method obtains the data of the property of the formation fluid, the production of various fluids, the formation pressure, the pressure change in the fluid flowing process and the like, obtains various physical parameters of the formation by analyzing and processing the data, and evaluates the formation.
The purpose of the formation testing will usually vary from well to well.
For example, for a parameter well (a regional exploration well), the main purpose of oil testing is to find out whether oil and gas exist in a new region or not and whether the new region has industrial value or not, and to open up the situation of finding oil and gas as soon as possible.
For the exploratory well, the main purpose of oil testing is to find out the industrial value of the reservoir and provide the basis for calculating and controlling the reserves.
For the detail exploration well, the main purpose of oil testing is to explore the boundaries of oil, gas and water, and to implement the change rule of productivity, the driving type and the pressure system to provide the basis for calculating and exploring reserves and evaluating oil and gas reservoirs.
For developing wells, the main purpose of oil testing is to determine the oil, gas and water productivity and to know the boundary change rule of oil, gas and water.
For a gas storage well (developed oil and gas reservoir), the main purpose of oil testing is to determine the change rule of productivity, know the change rule of oil, gas and water boundaries and provide a basis for a gas supply scheme.
The drilling fluid is a general term for various circulating fluids which meet the requirements of drilling work by multiple functions in the drilling process. The drilling fluid is the blood of the well, also called drilling flushing fluid. The drilling fluid can be divided into clear water, slurry, clay-phase-free flushing fluid, emulsion, foam, compressed air and the like according to the composition. The clean water is the earliest drilling fluid, does not need to be treated, is convenient to use and is suitable for regions with complete rock stratums and sufficient water sources. The mud is widely used drilling fluid and is mainly suitable for unstable rock formations of hole walls, such as loose rock formations, fracture development, easy collapse and block falling, water swelling and spalling and the like.
In oil and gas exploitation, oil and gas fields in certain areas have the characteristics of high temperature, high pressure and hydrogen sulfide content, the oil testing period in deep well drilling operation is long, and the phenomena of solidification and degradation are easy to occur after the oil testing working solution is stood at high temperature for a long time, so that the underground complex conditions such as the blockage of a testing pipe column, the failure of an underground safety valve, the clamping and burying of a packer and the like are caused, the non-production aging cost is increased, the reservoir is damaged, the frequent underground accidents are caused, and the oil testing efficiency is influenced. And the oil testing operation is used as an important component part for oil and gas exploitation, and huge economic loss can be brought if a complex underground accident occurs.
During the testing process, the testing fluid inevitably mixes with the drilling fluid. The related technical personnel find that the test oil well-entering working fluid can be mixed with the drilling fluid after entering the well, and the quality of the test oil well-entering working fluid can be changed under the influence of the drilling fluid. At present, in the aspect of quality control of a test oil working fluid entering a well, technicians mainly focus on evaluating the performances of the working fluid entering the well, such as density, sedimentation stability, high-temperature and high-pressure filtration loss, corrosion rate and the like, and the influence of a drilling fluid on the performance of the test oil working fluid is not concerned yet.
In order to improve the field construction quality, avoid the condition of underground blockage caused by incompatibility of the testing working fluid and the drilling fluid and reduce or eliminate the underground safety problem caused by incompatibility of the testing working fluid and the drilling fluid, the method for evaluating the compatibility of the testing working fluid and the drilling fluid is provided, the scientificity and the standardization of compatibility evaluation are improved, and meanwhile, the method has the characteristic of strong operability and is used as a part of a testing working fluid quality control system to guide the screening of the testing working fluid, so that the testing efficiency of a gas well is improved.
FIG. 1 is a schematic diagram illustrating a system for testing the performance of a test run-in-well fluid in accordance with an exemplary embodiment. The performance testing system for the test oil well working fluid comprises an oil well 110, an oil well sampling device 120 and an experimental testing device 130.
Wherein the well sampling device 120 is disposed at the wellhead of the well 110 for sampling various data and samples from the well 110, such as collecting well temperature of the well 110 and collecting samples of drilling fluid in the well 110.
The experimental testing equipment 130 is used for testing the compatibility between the test oil working fluid and the drilling fluid under manual operation or automatic operation.
In a possible implementation manner, the performance testing system for the test oil working fluid into the well further includes a computer device 140, and the computer device 140 is configured to collect experimental data of the experimental testing device 130, and automatically output a test result of compatibility between the test oil working fluid into the well and the drilling fluid based on the experimental data, and/or manage storage and the like of the test result of compatibility between the test oil working fluid into the well and the drilling fluid.
Wherein, the computer device 140 may be installed with a computer program/software for calculating the compatibility between the test oil well-entering working fluid and the drilling fluid.
FIG. 2 is a method flow diagram illustrating a method for testing the performance of a test run-in-well fluid in accordance with an exemplary embodiment. As shown in FIG. 2, the performance test method of the test oil well working fluid comprises the following steps:
And 204, determining the compatibility of the test well working fluid and the drilling fluid according to at least one of the preliminary evaluation information, the normal temperature stability evaluation information and the well temperature standing stability evaluation information.
In summary, according to the scheme shown in the embodiment of the application, after the test oil working fluid is mixed with the drilling fluid in the target oil well, the evaluation information of the mixed fluid is obtained through testing under the conditions of aging, normal-temperature standing and normal-temperature standing after aging respectively, and the compatibility of the test oil working fluid and the drilling fluid in the target oil well is determined through at least one of the evaluation information obtained through testing under three conditions, so that the scheme for evaluating the use performance of the test oil working fluid in the target oil well through the compatibility of the test oil working fluid and the drilling fluid is provided, the evaluation standard of the test oil working fluid is expanded, the accurate quality evaluation of the test oil working fluid can be respectively given for different oil wells, and the quality control effect of the test oil working fluid is improved.
FIG. 3 is a method flow diagram illustrating a method for testing the performance of a test run into a well fluid in accordance with an exemplary embodiment. As shown in FIG. 3, the performance test method of the test oil well working fluid comprises the following steps:
In a possible implementation mode, the mixed liquid is obtained by mixing the test oil well working fluid and the drilling fluid according to at least two specified proportions, wherein the proportions are at least two.
In one possible implementation, the first increase in apparent viscosity is a maximum of an increase in apparent viscosity of the aged mixed liquor relative to the apparent viscosity of the mixed liquor of at least two proportions.
In one possible implementation, the first duration is 16 hours.
In the embodiment of the application, technicians can take test oil into the working fluid of the well and mix the test oil with the drilling fluid in the field according to a certain proportion (such as 1:0, 9:1, 8:2, 7:3 and the like) and pour the mixture into an aging tank after high stirring, and after aging for 16 hours in a variable frequency roller heating furnace at the well temperature, the apparent viscosity of the sample is detected by using an electronic six-speed viscometer, and the increase of the apparent viscosity of the mixed liquid relative to the test oil working fluid is calculated.
Wherein the technician can populate the paper or spreadsheet with the calculated apparent viscosity.
Alternatively, the technician may also separately detect the increase in apparent viscosity of the mixed solution before and after aging, and fill it in a paper or spreadsheet.
And 302, when the first apparent viscosity amplification in the preliminary evaluation information is greater than a third amplification threshold value, determining that the compatibility of the test oil well-entering working fluid and the drilling fluid does not meet the qualified condition.
In one possible implementation, the third amplification threshold is 15%.
In the embodiment of the present application, when the first apparent viscosity increase is greater than 15%, it can be determined that the test well working fluid is incompatible with the drilling fluid.
Alternatively, the third amplification threshold may also be other values, such as 20%, 10%, and so on, and the third amplification threshold is not limited in this embodiment of the application.
In one possible implementation, the second time period is 72 hours.
In the embodiment of the present application, the mixed solution obtained in step 301 is poured into a measuring cylinder, and is placed at normal temperature for 72 hours to observe whether layering exists or whether hard precipitation exists.
Wherein the presence or absence of delamination and hard deposits can be determined by visual observation (e.g., by visual observation by a technician); alternatively, whether or not the above-mentioned layer is separated may be determined by measuring the difference in density between the upper and lower layers in the aged mixed solution after standing.
And 304, when the normal-temperature stability evaluation information indicates that the mixed solution is layered or indicates that the mixed solution has hard sediment, determining that the compatibility of the test oil well working fluid and the drilling fluid does not meet the qualified conditions.
In the embodiment of the application, if the mixed solution is layered or hard precipitated after standing for 72 hours at normal temperature, the test oil working fluid and the drilling fluid are incompatible.
305, when the first apparent viscosity amplification is smaller than a first amplification threshold value and the normal temperature stability evaluation information indicates that the mixed solution has no delamination and no hard precipitation, obtaining well temperature standing stability evaluation information, wherein the well temperature standing stability evaluation information is obtained by standing the aged mixed solution for a third time at the well temperature; the well temperature standing stability evaluation information comprises whether the standing aged mixed solution has hard precipitate or not and the target parameter amplification of the standing aged mixed solution; the target parameter amplification is the amplification of the target parameter of the static aged mixed liquor relative to the target parameter of the mixed liquor; the target parameters include at least one of upper and lower layer density difference, apparent viscosity, final shear force, and high temperature and high pressure fluid loss.
In one possible implementation, the target parameter increase is a maximum of at least two ratios of the increase in the target parameter of the standing aged mixed liquor relative to the target parameter of the mixed liquor.
In one possible implementation, the third duration is 10 days.
If the apparent viscosity of the test oil working solution is increased by more than 20% after being aged in the step 301 and no layering and hard precipitation appear after being treated in the step 303, evaluating the long-term standing stability at the well temperature: mixing a certain type of test oil well working fluid (such as modified polysulfonate test oil working fluid for a well A) and a drilling fluid (polysulfonate drilling fluid for a well B) according to a certain proportion, stirring at a high temperature, pouring into an aging tank, aging in a variable frequency roller heating furnace for 16 hours at 120 ℃ (well temperature), standing for 10 days at 120 ℃, measuring the density difference, apparent viscosity, final shear force and high-temperature high-pressure filtration loss of an upper layer and a lower layer, and calculating the increase of the properties of the mixed liquid relative to the test oil working fluid.
Wherein, the technician can fill the observed hard precipitation condition, and the calculated increase of the target parameters such as the density difference of the upper layer and the lower layer, the apparent viscosity, the final shearing force, the high-temperature high-pressure filtration loss and the like into a paper or an electronic form.
Alternatively, the technician may also separately detect target parameters such as density difference of upper and lower layers, apparent viscosity, final shear force, and high-temperature and high-pressure fluid loss of the mixed solution before and after aging and standing, and fill the parameters into a paper or spreadsheet.
And 306, when the well temperature standing stability evaluation information indicates that the standing aged mixed liquid has no hard precipitate and the target parameter amplification of the standing aged mixed liquid is smaller than a second amplification threshold value, determining that the compatibility of the test oil well working fluid and the drilling fluid meets the qualified condition.
In one possible implementation, the second amplification threshold is 15%.
In a possible implementation manner, when the well temperature standing stability evaluation information indicates that the standing aged mixed liquid has no hard precipitate, the target parameter amplification of the standing aged mixed liquid is smaller than a second amplification threshold value, and the target parameter of the standing aged mixed liquid is in a specified range, it is determined that the compatibility of the test oil well working fluid and the drilling fluid meets the qualified condition.
In a possible implementation manner, when the well temperature standing stability evaluation information indicates that the standing aged mixed liquid has hard precipitate, the target parameter amplification of the standing aged mixed liquid is smaller than the second amplification threshold value, and the target parameter of the standing aged mixed liquid is in a specified range, the compatibility of the test oil well working fluid and the drilling fluid can be determined to meet the qualified condition.
In the embodiment of the application, the evaluation conclusion of the compatibility of the test oil working fluid and the drilling fluid can be obtained through the evaluation information obtained by the test: when the apparent viscosity increase in the initial compatibility evaluation experiment is less than 15 percent; no layering and no hard precipitation in the normal temperature stability evaluation experiment; and no hard precipitate exists in the experiment for evaluating the long-term standing stability at the well temperature, the apparent viscosity is less than 150mPa.s, the final shear force is less than 30Pa, the high-temperature high-pressure filtration loss is less than 20mL, the density difference of the upper layer and the lower layer of the mixed solution, the apparent viscosity, the final shear force and the high-temperature high-pressure filtration loss are increased by less than 15 percent relative to the amplitude of the test oil working solution, and at the moment, the compatibility of the test oil working solution and the drilling fluid can be determined to meet the qualified conditions.
In one possible implementation, the evaluation data and the evaluation conclusion may be filled in a paper or electronic report.
The method for evaluating the compatibility of the oil testing working solution and the drilling fluid has certain scientific and standard evaluation steps, is strong in operability, gives a compatibility evaluation report, is clear in compatibility evaluation, and can improve the oil testing efficiency and the production period of a gas well.
The present application will be described in detail with reference to specific examples.
The compatibility evaluation steps of the modified polysulfonate oil testing working solution for the well A and the polysulfonate drilling fluid for the well B are as follows:
and S1, carrying out preliminary compatibility evaluation.
Mixing the modified polysulfonate oil testing working solution for the well A and the polysulfonate drilling fluid for the well B according to a certain ratio (1:0, 9:1, 8:2 and 7:3), pouring the mixture into an aging tank after high stirring, aging the mixture in a variable frequency type roller heating furnace for 16 hours at 120 ℃, detecting the apparent viscosity of a sample by using an electronic six-speed viscometer, and calculating the increase of the apparent viscosity of a mixed system relative to the oil testing working solution.
S2, evaluation of stability at room temperature.
And (5) pouring the mixed system in the step S1 into a measuring cylinder, standing at normal temperature for 72 hours, and observing whether layering exists or not and whether hard precipitation exists or not.
And S3, evaluating the stability of the oil well standing for a long time.
And if the apparent viscosity of the test oil working solution is increased by more than 20% after the evaluation of the step S1 and no layering and hard precipitation occur in the step S2, carrying out the evaluation of the long-term standing stability at the well temperature: mixing the modified polysulfonate oil testing working solution for the high-stone 001-H39 well and the polysulfonate drilling fluid for the dual-detection 18 well according to a certain ratio (1:0, 9:1, 8:2 and 7:3), stirring the mixture at a high temperature, pouring the mixture into an aging tank, aging the mixture in a variable-frequency roller heating furnace at 120 ℃ for 16 hours, standing the mixture at 120 ℃ for 10 days, measuring the density difference, apparent viscosity, final shear force and high-temperature and high-pressure filtration loss of the upper layer and the lower layer, and calculating the increase of the properties of the mixed system relative to the oil testing working solution.
And S4, filling a report for evaluating the compatibility of the test oil working fluid and the drilling fluid, and evaluating the compatibility of the test oil working fluid and the drilling fluid according to the data of the report.
The evaluation report of the compatibility of the modified polysulfonate oil testing working fluid for the well A and the polysulfonate drilling fluid for the well B is shown in the following table 1:
TABLE 1
The evaluation report of the compatibility of the well testing working fluid for the well C and the polysulfonate drilling fluid for the well D is shown in the following table 2:
TABLE 2
In summary, according to the scheme shown in the embodiment of the application, after the test oil working fluid is mixed with the drilling fluid in the target oil well, the evaluation information of the mixed fluid is obtained through testing under the conditions of aging, normal-temperature standing and normal-temperature standing after aging respectively, and the compatibility of the test oil working fluid and the drilling fluid in the target oil well is determined through at least one of the evaluation information obtained through testing under three conditions, so that the scheme for evaluating the use performance of the test oil working fluid in the target oil well through the compatibility of the test oil working fluid and the drilling fluid is provided, the evaluation standard of the test oil working fluid is expanded, the accurate quality evaluation of the test oil working fluid can be respectively given for different oil wells, and the quality control effect of the test oil working fluid is improved.
In the solutions shown in the above embodiments of the present application, the process of determining the compatibility by evaluating the information may be executed by a computer device. For example, after obtaining the above evaluation information through testing, the technician inputs the evaluation information into the computer device, and the computer device automatically calculates the evaluation of compatibility according to the evaluation information.
Fig. 4 is a block diagram of a performance testing apparatus for testing oil into a well working fluid according to an exemplary embodiment, as shown in fig. 4, the performance testing apparatus for testing oil into a well working fluid may be implemented as all or part of a computer device in a hardware manner or a combination of hardware and software manner, so as to perform all or part of the steps of the method shown in the corresponding embodiment of fig. 2 or 3. The performance testing device for the test oil well working fluid can comprise:
a first obtaining module 401, configured to obtain preliminary evaluation information, where the preliminary evaluation information is obtained by mixing a test oil working fluid entering a well with a drilling fluid in a target oil well according to a specified ratio to obtain a mixed solution, performing a first time-consuming aging treatment on the mixed solution at a well temperature of the target oil well to obtain an aged mixed solution, and measuring an apparent viscosity of the aged mixed solution; the preliminary evaluation information includes a first apparent viscosity increase, which is an increase in the apparent viscosity of the mixed liquor after aging relative to the apparent viscosity of the mixed liquor;
a second obtaining module 402, configured to obtain normal temperature stability evaluation information, where the normal temperature stability evaluation information is obtained after the mixed solution is allowed to stand at normal temperature for a second duration; the normal temperature stability evaluation information comprises whether the mixed solution is layered or not and whether the mixed solution has hard sediment or not;
a third obtaining module 403, configured to obtain well temperature standing stability evaluation information, where the well temperature standing stability evaluation information is obtained by standing the aged mixed solution for a third duration at the well temperature; the well temperature standing stability evaluation information comprises whether the standing aged mixed solution has hard precipitate or not and the target parameter amplification of the standing aged mixed solution; the target parameter amplification is the amplification of the target parameter of the static aged mixed liquor relative to the target parameter of the mixed liquor; the target parameters comprise at least one of density difference of an upper layer and a lower layer, apparent viscosity, final shear force and high-temperature and high-pressure filtration loss;
and a compatibility determining module 404, configured to determine compatibility between the test oil working fluid and the drilling fluid according to at least one of the preliminary evaluation information, the normal temperature stability evaluation information, and the well temperature standing stability evaluation information.
In one possible implementation manner, the mixed liquid is obtained by mixing the test oil well working fluid and the drilling fluid according to at least two specified proportions, wherein the proportions of the mixed liquid are at least two proportions;
the first apparent viscosity increase is a maximum of increases in apparent viscosities of the aged mixed liquid relative to the apparent viscosity of the mixed liquid in at least two proportions;
the target parameter amplification is the maximum value of the target parameter amplification of the standing aged mixed liquor relative to the target parameter amplification of the mixed liquor in at least two proportions.
In a possible implementation manner, the third obtaining module 403 is configured to, when the first apparent viscosity increase is smaller than a first increase threshold and the normal temperature stability evaluation information indicates that the mixed solution is not layered and has no hard precipitate, perform the step of obtaining the well temperature standing stability evaluation information.
In one possible implementation, the first amplification threshold is 15%.
In a possible implementation manner, the compatibility determining module 404 is configured to determine that the compatibility of the test oil working fluid and the drilling fluid meets the qualified condition when the well temperature standing stability evaluation information indicates that the standing aged mixed fluid has no hard precipitate and the target parameter amplification of the standing aged mixed fluid is smaller than a second amplification threshold.
In one possible implementation, the second amplification threshold is 15%.
In one possible implementation, the compatibility determination module 404 is configured to determine that the compatibility of the test run-in working fluid and the drilling fluid does not meet the qualification condition when the first apparent viscosity increase in the preliminary evaluation information is greater than a third increase threshold.
In one possible implementation, the third amplification threshold is 15%.
In a possible implementation manner, the compatibility determining module 404 is configured to determine that the compatibility of the test oil working fluid and the drilling fluid does not meet the qualified condition when the normal temperature stability evaluation information indicates that the mixed solution is layered or indicates that the mixed solution has a hard precipitate.
In one possible implementation, the first length of time is 16 hours; the second time period is 72 hours; the third time period is 10 days.
In summary, according to the scheme shown in the embodiment of the application, after the test oil working fluid is mixed with the drilling fluid in the target oil well, the evaluation information of the mixed fluid is obtained through testing under the conditions of aging, normal-temperature standing and normal-temperature standing after aging respectively, and the compatibility of the test oil working fluid and the drilling fluid in the target oil well is determined through at least one of the evaluation information obtained through testing under three conditions, so that the scheme for evaluating the use performance of the test oil working fluid in the target oil well through the compatibility of the test oil working fluid and the drilling fluid is provided, the evaluation standard of the test oil working fluid is expanded, the accurate quality evaluation of the test oil working fluid can be respectively given for different oil wells, and the quality control effect of the test oil working fluid is improved.
It should be noted that, when the apparatus provided in the foregoing embodiment implements the functions thereof, only the division of the above functional modules is illustrated, and in practical applications, the above functions may be distributed by different functional modules according to actual needs, that is, the content structure of the device is divided into different functional modules, so as to complete all or part of the functions described above.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
FIG. 5 is a schematic diagram illustrating a configuration of a computer device, according to an example embodiment. The computer apparatus 500 includes a Central Processing Unit (CPU) 501, a system Memory 504 including a Random Access Memory (RAM) 502 and a Read-Only Memory (ROM) 503, and a system bus 505 connecting the system Memory 504 and the CPU 501. The computer device 500 also includes a basic Input/Output system (I/O system) 506, which facilitates information transfer between various devices within the computer device, and a mass storage device 507, which stores an operating system 513, application programs 514, and other program modules 515.
The basic input/output system 506 includes a display 508 for displaying information and an input device 506, such as a mouse, keyboard, etc., for a user to input information. Wherein the display 508 and the input device 509 are connected to the central processing unit 501 through an input output controller 510 connected to the system bus 505. The basic input/output system 506 may also include an input/output controller 510 for receiving and processing input from a number of other devices, such as a keyboard, mouse, or electronic stylus. Similarly, input-output controller 510 also provides output to a display screen, a printer, or other type of output device.
The mass storage device 507 is connected to the central processing unit 501 through a mass storage controller (not shown) connected to the system bus 505. The mass storage device 507 and its associated computer device-readable media provide non-volatile storage for the computer device 500. That is, the mass storage device 507 may include a computer device readable medium (not shown) such as a hard disk or Compact disk-Only Memory (CD-ROM) drive.
Without loss of generality, the computer device readable media may comprise computer device storage media and communication media. Computer device storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer device readable instructions, data structures, program modules or other data. Computer device storage media includes RAM, ROM, Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), CD-ROM, Digital Video Disk (DVD), or other optical, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices. Of course, those skilled in the art will appreciate that the computer device storage media is not limited to the foregoing. The system memory 504 and mass storage device 507 described above may be collectively referred to as memory.
The computer device 500 may also operate as a remote computer device connected to a network through a network, such as the internet, in accordance with various embodiments of the present disclosure. That is, the computer device 500 may be connected to the network 512 through the network interface unit 511 connected to the system bus 505, or may be connected to other types of networks or remote computer device systems (not shown) using the network interface unit 511.
The memory further includes one or more programs, the one or more programs are stored in the memory, and the central processing unit 501 implements all or part of the steps of the method shown in fig. 2 or fig. 3 by executing the one or more programs.
Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in embodiments of the disclosure may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-device-readable medium. Computer device readable media includes both computer device storage media and communication media including any medium that facilitates transfer of a computer device program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer device.
The disclosed embodiment also provides a computer device, which includes a processor and a memory, where at least one instruction, at least one program, a code set, or a set of instructions is stored in the memory, and the at least one instruction, the at least one program, the code set, or the set of instructions is loaded and executed by the processor to implement the performance testing method for the test oil well working fluid.
The disclosed embodiments also provide a computer-readable storage medium, in which at least one instruction, at least one program, a code set, or an instruction set is stored, and the at least one instruction, the at least one program, the code set, or the instruction set is loaded and executed by a processor to implement the performance testing method for the test oil well working fluid.
Embodiments of the present disclosure also provide a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. And reading the computer instructions from the computer readable storage medium by a processor of the computer equipment, and executing the computer instructions by the processor to enable the computer equipment to execute the performance testing method of the test oil well working fluid.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. A performance test method for a test oil well working fluid is characterized by comprising the following steps:
acquiring preliminary evaluation information, wherein the preliminary evaluation information is obtained by mixing a test oil well working fluid and a drilling fluid in a target oil well according to a specified proportion to obtain a mixed solution, carrying out a first time aging treatment on the mixed solution at the well temperature of the target oil well to obtain an aged mixed solution, and measuring the apparent viscosity of the aged mixed solution; the preliminary evaluation information includes a first apparent viscosity increase, which is an increase in the apparent viscosity of the mixed liquor after aging relative to the apparent viscosity of the mixed liquor;
obtaining normal-temperature stability evaluation information, wherein the normal-temperature stability evaluation information is obtained after standing the mixed solution for a second time at normal temperature; the normal temperature stability evaluation information comprises whether the mixed solution is layered or not and whether the mixed solution has hard sediment or not;
obtaining well temperature standing stability evaluation information, wherein the well temperature standing stability evaluation information is obtained by standing the aged mixed solution for a third time at the well temperature; the well temperature standing stability evaluation information comprises whether the standing aged mixed solution has hard precipitate or not and the target parameter amplification of the standing aged mixed solution; the target parameter amplification is the amplification of the target parameter of the static aged mixed liquor relative to the target parameter of the mixed liquor; the target parameters comprise at least one of density difference of an upper layer and a lower layer, apparent viscosity, final shear force and high-temperature and high-pressure filtration loss;
and determining the compatibility of the test oil well working fluid and the drilling fluid according to at least one of the preliminary evaluation information, the normal temperature stability evaluation information and the well temperature standing stability evaluation information.
2. The method of claim 1,
the mixed liquid is obtained by mixing the test oil well working fluid and the drilling fluid according to at least two specified proportions, wherein the proportions of the two mixed liquids are at least two;
the first increase in apparent viscosity is a maximum of increases in apparent viscosity of the aged mixed liquid relative to the apparent viscosity of the mixed liquid in at least two proportions;
the target parameter amplification is the maximum value of the target parameter amplification of the standing aged mixed liquor relative to the target parameter amplification of the mixed liquor in at least two proportions.
3. The method of claim 1, wherein said obtaining well temperature standing stability evaluation information comprises:
and when the first apparent viscosity amplification is smaller than a first amplification threshold value and the normal-temperature stability evaluation information indicates that the mixed solution is not layered and hard sediment, executing the step of obtaining the well-temperature standing stability evaluation information.
4. The method of claim 3, wherein determining the compatibility of the test run-in working fluid and the drilling fluid according to at least one of the preliminary evaluation information, the normal temperature stability evaluation information, and the well temperature standing stability evaluation information comprises:
and when the well temperature standing stability evaluation information indicates that the standing aged mixed liquid has no hard precipitate and the target parameter amplification of the standing aged mixed liquid is smaller than a second amplification threshold value, determining that the compatibility of the test oil well working fluid and the drilling fluid meets the qualified condition.
5. The method of claim 1, wherein determining the compatibility of the test run-in working fluid and the drilling fluid according to at least one of the preliminary evaluation information, the normal temperature stability evaluation information, and the well temperature standing stability evaluation information comprises:
and when the first apparent viscosity increase in the preliminary evaluation information is larger than a third increase threshold value, determining that the compatibility of the test oil well working fluid and the drilling fluid does not meet the qualified condition.
6. The method of claim 1, wherein determining the compatibility of the test run-in working fluid and the drilling fluid according to at least one of the preliminary evaluation information, the normal temperature stability evaluation information, and the well temperature standing stability evaluation information comprises:
and when the normal-temperature stability evaluation information indicates that the mixed solution is layered or indicates that the mixed solution has hard precipitate, determining that the compatibility of the test oil well-entering working fluid and the drilling fluid does not meet the qualified conditions.
7. The method according to any one of claims 1 to 6,
the first time period is 16 hours; the second time period is 72 hours; the third time period is 10 days.
8. A device for testing the performance of a well testing working fluid, the device comprising:
the system comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring preliminary evaluation information, the preliminary evaluation information is obtained by mixing a test oil well working fluid and a drilling fluid in a target oil well according to a specified proportion to obtain a mixed solution, carrying out first-time aging treatment on the mixed solution at the well temperature of the target oil well to obtain an aged mixed solution, and measuring the apparent viscosity of the aged mixed solution; the preliminary evaluation information includes a first apparent viscosity increase, which is an increase in the apparent viscosity of the mixed liquid after aging relative to the apparent viscosity of the mixed liquid;
the second acquisition module is used for acquiring normal-temperature stability evaluation information, and the normal-temperature stability evaluation information is obtained after the mixed liquid is kept still for a second time at normal temperature; the normal temperature stability evaluation information comprises whether the mixed solution is layered or not and whether the mixed solution has hard sediment or not;
the third acquisition module is used for acquiring well temperature standing stability evaluation information, and the well temperature standing stability evaluation information is acquired by standing the aged mixed solution for a third time at the well temperature; the well temperature standing stability evaluation information comprises whether the standing aged mixed solution has hard precipitate or not and the target parameter amplification of the standing aged mixed solution; the target parameter amplification is the amplification of the target parameter of the static aged mixed liquor relative to the target parameter of the mixed liquor; the target parameters comprise at least one of density difference of an upper layer and a lower layer, apparent viscosity, final shear force and high-temperature and high-pressure filtration loss;
and the compatibility determining module is used for determining the compatibility of the test oil well working fluid and the drilling fluid according to at least one of the preliminary evaluation information, the normal temperature stability evaluation information and the well temperature standing stability evaluation information.
9. A computer device comprising a processor and a memory, the memory having stored therein at least one instruction, at least one program, set of codes, or set of instructions, which is loaded and executed by the processor to carry out a method of performance testing of a test oil into a well working fluid according to any one of claims 1 to 7.
10. A computer readable storage medium having stored therein at least one instruction, at least one program, a set of codes, or a set of instructions, which is loaded and executed by a processor to carry out a method of performance testing of a test run-in well fluid according to any one of claims 1 to 7.
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