CN114859018B - Performance test method, device and equipment for oil test well working fluid and storage medium - Google Patents
Performance test method, device and equipment for oil test well working fluid and storage medium Download PDFInfo
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- 238000011156 evaluation Methods 0.000 claims abstract description 165
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2823—Raw oil, drilling fluid or polyphasic mixtures
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Abstract
The invention discloses a performance test method, device and equipment for an oil testing well working fluid and a storage medium, and belongs to the technical field of oil and gas exploitation. The method comprises the following steps: the method comprises the steps of obtaining preliminary evaluation information, wherein the preliminary evaluation information is obtained by mixing oil testing working fluid into a well and drilling fluid in a target oil well according to a specified proportion, and measuring after ageing treatment at well temperature; acquiring normal temperature stability evaluation information, wherein the normal temperature stability evaluation information is obtained by standing a mixed solution at normal temperature; acquiring well temperature stability evaluation information, wherein the well temperature stability evaluation information is obtained by standing the aged mixed solution at the well temperature; and determining the compatibility of the oil testing well-entering 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 stability evaluation information. The scheme can improve the quality control effect on the oil testing well fluid.
Description
Technical Field
The disclosure relates to the technical field of oil and gas exploitation, in particular to a performance test method, device and equipment for an oil testing well working fluid and a storage medium.
Background
In the oil testing operation, the performance of the oil testing well fluid has important influence on the accuracy of the oil testing result and the safety of the oil testing operation.
In the related art, when engineering personnel perform performance test on the oil testing well fluid, parameters such as density, sedimentation stability, high-temperature high-pressure filtration loss, corrosion rate and the like of the oil testing well fluid are mainly tested, so that quality control of the oil testing well fluid is realized.
However, because the downhole environments or conditions of different oil wells are often quite different, the quality requirements on the test oil well fluid are inconsistent, and the current performance test scheme for the test oil well fluid has poor quality control effect on the test oil well fluid.
Disclosure of Invention
The disclosure provides a performance test method of a test oil well working fluid. The technical scheme is as follows:
in one aspect, a method for testing performance of a working fluid for testing oil into a well is provided, the method comprising:
obtaining preliminary evaluation information, wherein the preliminary evaluation information is obtained by mixing oil testing working fluid into a well and drilling fluid in a target oil well according to a specified proportion to obtain mixed fluid, performing aging treatment on the mixed fluid for a first time at the well temperature of the target oil well to obtain aged mixed fluid, and measuring apparent viscosity of the aged mixed fluid; the preliminary evaluation information includes a first apparent viscosity increase, which is an increase in apparent viscosity of the aged mixed liquor relative to 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 precipitation or not;
acquiring well temperature stability evaluation information, wherein the well temperature stability evaluation information is obtained after standing the aged mixed solution for a third time period at the well temperature; the well temperature static stability evaluation information comprises whether the static aged mixed solution has hard precipitation or not and target parameter amplification of the static aged mixed solution; the target parameter amplification is the amplification of the target parameter of the mixed liquid after standing and aging relative to the target parameter of the mixed liquid; the target parameters comprise at least one of upper and lower layer density difference, apparent viscosity, final shear force and high-temperature high-pressure filtration loss;
and determining the compatibility of the oil testing 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 stability evaluation information.
In one possible implementation manner, the mixed solution is obtained by mixing the oil test well working solution and the drilling fluid according to at least two specified ratios, and the mixed solution is at least two ratios;
the first apparent viscosity increase is the maximum of the increases in apparent viscosity of the aged mixture of at least two proportions relative to the apparent viscosity of the mixture;
the target parameter amplification is a maximum value of the amplification of the target parameter of the stationary aged mixed liquid relative to the target parameter of the mixed liquid of at least two proportions.
In one possible implementation manner, the acquiring well temperature stability evaluation information includes:
and when the first apparent viscosity increase is smaller than a first increase threshold value and the normal temperature stability evaluation information indicates that the mixed liquid is not layered and is not hard to precipitate, executing the step of acquiring well temperature rest stability evaluation information.
In one possible implementation, the first amplification threshold is 15%.
In one possible implementation manner, the determining compatibility of the oil testing 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 stability evaluation information includes:
And when the well temperature static stability evaluation information indicates that the static aged mixed liquid has no hard precipitate, and the target parameter amplification of the static aged mixed liquid is smaller than a second amplification threshold value, determining that the compatibility of the oil testing well-entering working liquid and the drilling liquid meets the qualified condition.
In one possible implementation, the second amplification threshold is 15%.
In one possible implementation manner, the determining compatibility of the oil testing 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 stability evaluation information includes:
and when the first apparent viscosity increase in the preliminary evaluation information is larger than a third increase threshold, determining that the compatibility of the oil testing working fluid and the drilling fluid does not meet the qualification condition.
In one possible implementation, the third amplification threshold is 15%.
In one possible implementation manner, the determining compatibility of the oil testing 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 stability evaluation information includes:
And when the normal temperature stability evaluation information indicates that the mixed liquid is layered, or indicates that the mixed liquid has hard precipitation, determining that the compatibility of the oil testing well-entering working liquid and the drilling liquid does not meet the qualification condition.
In one possible implementation, the first duration is 16 hours; the second duration is 72 hours; the third period of time is 10 days.
In one aspect, a performance testing device for a test oil well working fluid is provided, the device comprising:
the system comprises a first acquisition module, a second acquisition module and a control module, wherein the first acquisition module is used for acquiring preliminary evaluation information, the preliminary evaluation information is obtained by mixing a working fluid for testing oil into a well with a drilling fluid in a target oil well according to a specified proportion to obtain a mixed fluid, performing aging treatment on the mixed fluid for a first time at the well temperature of the target oil well to obtain an aged mixed fluid, and measuring the apparent viscosity of the aged mixed fluid; the preliminary evaluation information includes a first apparent viscosity increase, which is an increase in apparent viscosity of the aged mixed liquor relative to apparent viscosity of the mixed liquor;
the second acquisition module is used for acquiring normal temperature stability evaluation information, wherein the normal temperature stability evaluation information is obtained after the mixed solution is kept stand 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 precipitation or not;
The third acquisition module is used for acquiring well temperature stability evaluation information, wherein the well temperature stability evaluation information is obtained after the aged mixed solution is kept stand for a third time period at the well temperature; the well temperature static stability evaluation information comprises whether the static aged mixed solution has hard precipitation or not and target parameter amplification of the static aged mixed solution; the target parameter amplification is the amplification of the target parameter of the mixed liquid after standing and aging relative to the target parameter of the mixed liquid; the target parameters comprise at least one of upper and lower layer density difference, apparent viscosity, final shear force and high-temperature high-pressure filtration loss;
and the compatibility determining module is used for determining the compatibility of the oil testing 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 stability evaluation information.
In one aspect, a computer device is provided, the computer device includes a processor and a memory, the memory stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to implement the performance test method of the oil testing working fluid.
In one aspect, a computer readable storage medium is provided, where at least one instruction, at least one program, a code set, or an instruction set is stored in the storage medium, where 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 of the oil testing working fluid.
In one aspect, a computer program product is provided that includes computer instructions stored in a computer-readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions to cause the computer device to perform the performance testing method of the test oil well working fluid provided in various alternative implementations of the above aspect.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
the method comprises the steps of mixing the test oil well-entering working fluid with the drilling fluid in the target oil well, testing to obtain evaluation information of the mixed fluid under the conditions of aging, normal-temperature standing and normal-temperature standing after aging, determining compatibility of the test oil well-entering working fluid with the drilling fluid in the target oil well according to at least one of the evaluation information obtained by testing under the three conditions, and accordingly, providing a scheme for evaluating performance of the test oil well-entering working fluid in the target oil well through compatibility of the test oil well-entering working fluid and the drilling fluid, expanding evaluation standards of the test oil well-entering working fluid, and respectively giving accurate quality evaluation of the test oil well-entering working fluid according to different oil wells, so that quality control effects of the test oil well-entering working fluid are 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 disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a schematic diagram of a performance testing system for a test oil well fluid, according to an exemplary embodiment;
FIG. 2 is a method flow diagram illustrating a method of testing the performance of a test oil well fluid, according to an example embodiment;
FIG. 3 is a method flow diagram illustrating a method of testing the performance of a test oil well fluid, according to an exemplary embodiment;
FIG. 4 is a block diagram illustrating a performance testing apparatus for a test oil well fluid, according to an example embodiment;
fig. 5 is a schematic diagram of a computer device, according to an example embodiment.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
It should be understood that references herein to "a number" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are some embodiments of the present disclosure, but not all embodiments. The components of the embodiments of the present disclosure, which are 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 present disclosure provided in the accompanying drawings is not intended to limit the scope of the disclosure, as claimed, but is merely representative of selected embodiments of the disclosure. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure are intended to be within the scope of this disclosure.
It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In describing the embodiments of the present disclosure, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product is conventionally put in use as understood by those skilled in the art, is merely for convenience of describing the present disclosure and simplifying the description, and is not indicative or implying that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present disclosure. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for understanding as indicating or implying a relative importance.
In describing the embodiments of the present disclosure, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in this disclosure will be understood to those of ordinary skill in the art in the light of the specific circumstances; the accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. The components of the embodiments of the present disclosure, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
The oil test is to make the fluid in stratum (including oil, gas and water) enter the well bore and flow out of the ground through perforation, alternative injection, induced injection and other modes. Thus, data such as the property of the formation fluid, the yield of various fluids, the formation pressure, the pressure change in the fluid flowing process and the like are obtained, and various physical parameters of the formation are obtained through analysis and processing of the data, so that the formation is evaluated.
The purpose of testing oil is often different for different wells.
For example, for parameter wells (regional exploratory wells), the main purpose of oil testing is to ascertain whether oil and gas are present in a new zone, whether it is of industrial value, and to open the situation of finding oil and gas as soon as possible.
For the exploration well, the main purpose of oil testing is to find out the industrial value of the reservoir, and provide a basis for calculating and controlling reserves.
For a detail exploration well, the main purpose of oil testing is to explore the boundaries of oil, gas and water, and the implementation of productivity change rules, driving types and pressure systems provides basis for calculation and exploration of reserves and oil and gas reservoir evaluation.
For development wells, the main purpose of oil testing is to determine the oil, gas and water productivity and know the change rule of the boundary 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 the boundary of oil, gas and water, and provide a basis for the gas supply scheme.
The drilling fluid is a general term for various circulating fluids which meet the drilling work requirement by multiple functions in the drilling process. Drilling fluid is the blood of a well, also known as a drilling fluid. The drilling fluid can be divided into clear water, slurry, clay-free phase flushing fluid, emulsion, foam, compressed air and the like according to the components. Clear water is the earliest drilling fluid used, does not need to be treated, is convenient to use, and is suitable for the areas with complete rock stratum and sufficient water sources. The mud is a widely used drilling fluid, and is mainly suitable for rock formations with unstable hole wall, such as loose, crack development, easy collapse and block falling, water swelling and peeling, and the like.
In oil and gas exploitation, the oil and gas field in certain areas has the characteristics of high temperature, high pressure and hydrogen sulfide, the oil testing period in deep well drilling operation is long, the phenomenon of solidification and degradation of the oil testing working fluid is easy to occur after the oil testing working fluid stands at high temperature for a long time, the underground complex conditions of blocking of a testing pipe column, failure of an underground safety valve, blocking of a packer and the like are caused, the non-production aging cost is increased, a reservoir is damaged, underground accidents are frequently caused, and the oil testing efficiency is influenced. The oil testing operation is taken as an important component of oil and gas exploitation, and if a complex accident happens in the pit, huge economic loss can be caused.
In the oil testing process, the oil testing well fluid is inevitably mixed with the drilling fluid. The related technicians find that the oil test working fluid is mixed with the drilling fluid after entering the well, and the quality of the working fluid is changed due to the influence of the drilling fluid. In the aspect of quality control of the oil testing well working fluid at present, technicians mainly focus on evaluating the performance of the well working fluid, such as density, sedimentation stability, high-temperature high-pressure filtration loss, corrosion rate and the like, and do not pay attention to the influence of the drilling fluid on the performance of the oil testing well working fluid.
In order to improve the field construction quality, avoid the situation of underground blockage caused by incompatibility of the oil testing working solution and the drilling fluid, and reduce or eliminate the underground safety problem caused by incompatibility of the oil testing working solution and the drilling fluid, the application provides a method for evaluating the compatibility of the oil testing working solution and the drilling fluid, which improves the scientificity and the standardization of compatibility evaluation, has the characteristic of strong operability at the same time, and is used as a part of a quality control system of the oil testing working solution to guide screening of the oil testing working solution, thereby improving the oil testing efficiency of a gas well.
FIG. 1 is a schematic diagram illustrating a performance testing system for a test oil well fluid, according to an exemplary embodiment. The performance test system of the oil test working fluid comprises an oil well 110, an oil well sampling device 120 and an experimental test device 130.
Where well sampling device 120 is disposed at the wellhead of well 110 for sampling various data and samples of well 110, such as, for example, collecting the well temperature of well 110 and collecting drilling fluid samples in well 110.
The experimental testing apparatus 130 is used for testing compatibility between the working fluid for testing oil into a well and the drilling fluid under manual operation or automatic operation.
In one possible implementation manner, the performance test system of the oil test working fluid further includes a computer device 140, where the computer device 140 is configured to collect experimental data of the experimental test device 130, automatically output a test result of compatibility between the oil test working fluid and the drilling fluid based on the experimental data, and/or store and manage the test result of compatibility between the oil test working fluid and the drilling fluid.
Therein, a computer program/software for performing the calculation of the compatibility between the test oil well working fluid and the drilling fluid may be installed in the computer device 140.
FIG. 2 is a method flow diagram illustrating a method of testing the performance of a test oil well fluid, according to an exemplary embodiment. As shown in fig. 2, the performance test method of the oil test working fluid comprises the following steps:
Step 201, obtaining 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 fluid, performing aging treatment on the mixed fluid for a first time at the well temperature of the target oil well to obtain an aged mixed fluid, and measuring the apparent viscosity of the aged mixed fluid; the preliminary evaluation information includes a first apparent viscosity increase, which is an increase in apparent viscosity of the aged mixed liquor relative to apparent viscosity of the mixed liquor.
Step 202, acquiring 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 includes whether the mixed solution is layered or not, and whether the mixed solution has hard precipitation or not.
Step 203, acquiring well temperature stability evaluation information, wherein the well temperature stability evaluation information is obtained after standing the aged mixed solution for a third time period at the well temperature; the well temperature stability evaluation information comprises whether the mixed liquid after standing ageing is layered or not and target parameter amplification of the mixed liquid after standing ageing; the target parameter amplification is the amplification of the target parameter of the mixed liquid after standing and aging relative to the target parameter of the mixed liquid; the target parameter includes at least one of apparent viscosity, end cutting force, and high temperature, high pressure fluid loss.
Step 204, determining compatibility of the working fluid for testing oil and the drilling fluid according to at least one of the preliminary evaluation information, the normal temperature stability evaluation information and the well temperature stability evaluation information.
In summary, according to the scheme provided by the embodiment of the application, after the test oil well working fluid is mixed with the drilling fluid in the target oil well, the test is performed under the conditions of aging, normal-temperature standing and normal-temperature standing after aging to obtain the evaluation information of the mixed fluid, and the compatibility of the test oil well working fluid and the drilling fluid in the target oil well is determined through at least one of the evaluation information obtained by the test under the three conditions, so that the scheme for evaluating the performance of the test oil well working fluid in the target oil well through the compatibility of the test oil well working fluid and the drilling fluid is provided, the evaluation standard of the test oil well working fluid is expanded, the accurate quality evaluation of the test oil well working fluid can be respectively given for different oil wells, and the quality control effect of the test oil well working fluid is improved.
FIG. 3 is a method flow diagram illustrating a method of testing the performance of a test oil well fluid, according to an exemplary embodiment. As shown in fig. 3, the performance test method of the oil test working fluid comprises the following steps:
Step 301, obtaining preliminary evaluation information, wherein the preliminary evaluation information is obtained by mixing a working fluid for testing oil into a well and a drilling fluid in a target oil well according to a specified proportion to obtain a mixed fluid, performing aging treatment on the mixed fluid for a first time at the well temperature of the target oil well to obtain an aged mixed fluid, and measuring the apparent viscosity of the aged mixed fluid; the preliminary evaluation information includes a first apparent viscosity increase, which is an increase in apparent viscosity of the aged mixed liquor relative to apparent viscosity of the mixed liquor.
In one possible implementation, the mixed fluid is obtained by mixing the test oil well working fluid and the drilling fluid according to at least two specified ratios, and the mixed fluid is at least two ratios.
In one possible implementation, the first apparent viscosity increase is the maximum of at least two proportions of the increase in apparent viscosity of the aged mixture relative to the apparent viscosity of the mixture.
In one possible implementation, the first duration is 16 hours.
In the embodiment of the application, a technician can take test oil into a well working fluid and mix the test oil into a field by using drilling fluid according to a certain proportion (such as 1:0, 9:1, 8:2, 7:3 and the like), stir the test oil into an aging tank, age the test oil in a variable-frequency roller heating furnace for 16 hours at the well temperature, detect the apparent viscosity of a sample by using an electronic six-speed viscometer, and calculate the apparent viscosity increase of the mixed fluid relative to the test oil working fluid.
Wherein the technician can fill the calculated apparent viscosity into a paper or spreadsheet.
Alternatively, the technician may detect the apparent viscosity increase of the mixed solution before and after aging, respectively, and fill the paper or electronic form.
Step 302, determining that the compatibility of the working fluid for testing oil 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 the embodiment of the application, when the first apparent viscosity is increased by more than 15%, it can be judged that the working fluid for testing oil into the well is not compatible with the drilling fluid.
Alternatively, the third amplification threshold may be other values, such as 20%,10%, etc., and the embodiment of the present application is not limited to the third amplification threshold.
Step 303, acquiring 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 includes whether the mixed solution is layered or not, and whether the mixed solution has hard precipitation or not.
In one possible implementation, the second duration is 72 hours.
In the embodiment of the present application, the mixed solution obtained in step 301 is poured into a measuring cylinder, and after being placed at normal temperature for 72 hours, whether layering exists or not, and whether hard precipitation exists or not is observed.
Wherein, whether there is delamination and whether there is hard precipitation can be determined by visual observation (such as visual observation by a technician); alternatively, whether or not the layers are separated may be determined by measuring the difference between the densities of the upper and lower layers in the mixture after aging at rest.
And 304, when the normal temperature stability evaluation information indicates that the mixed liquid is layered, or indicates that the mixed liquid has hard precipitation, determining that the compatibility of the oil testing working liquid and the drilling liquid does not meet the qualification condition.
In the embodiment of the application, if the mixed solution is layered or hard precipitated after standing for 72 hours at normal temperature, the working fluid for testing oil into the well is not compatible with the drilling fluid.
Step 305, 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 has no layering and no hard precipitation, obtaining well temperature stability evaluation information, wherein the well temperature stability evaluation information is obtained after the aged mixed solution is kept stand for a third period of time at the well temperature; the well temperature stability evaluation information comprises whether the mixed solution subjected to standing aging has hard precipitation or not and target parameter amplification of the mixed solution subjected to standing aging; the target parameter amplification is the amplification of the target parameter of the mixed liquid after standing and aging relative to the target parameter of the mixed liquid; the target parameter includes at least one of upper and lower layer density difference, apparent viscosity, end cutting force, and high temperature high pressure fluid loss.
In one possible implementation, the target parameter increase is the maximum value of the increase in the target parameter of the at least two proportions of the stationary aged mixed liquor relative to the target parameter of the mixed liquor.
In one possible implementation, the third period of time is 10 days.
If the apparent viscosity of the oil testing working fluid is increased by more than 20% after aging in step 301, and delamination and hard precipitation do not occur after treatment in step 303, long-term standing stability evaluation at well temperature is performed: taking a certain type of oil testing working fluid (such as modified polysulfonate working fluid for A well) and drilling fluid for a certain oil well (polysulfonate drilling fluid for B well), mixing the working fluids according to a certain proportion (1:0, 9:1, 8:2, 7:3 and the like), pouring the mixture into an aging tank after high stirring, aging the mixture in a variable-frequency roller heating furnace for 16 hours at 120 ℃ (well temperature), standing the mixture for 10 days at 120 ℃, and then measuring the density difference between an upper layer and a lower layer, apparent viscosity, final cutting force and high-temperature high-pressure filtration loss, and calculating the amplification of the properties of the mixed fluid relative to the oil testing working fluid.
The technician can fill the observed hard precipitation condition, and the calculated target parameters such as the upper and lower layer density difference, apparent viscosity, final cutting force, high-temperature high-pressure filtration loss and the like into paper or a spreadsheet.
Alternatively, the technician may detect target parameters such as the upper and lower layer density difference, apparent viscosity, final cutting force, high temperature and high pressure fluid loss of the mixed liquid before and after aging and standing, respectively, and fill in paper or electronic forms.
Step 306, when the well temperature stability evaluation information indicates that the standing aged mixed solution has no hard precipitate, and the target parameter amplification of the standing aged mixed solution is smaller than a second amplification threshold value, determining that the compatibility of the oil testing working solution and the drilling fluid meets the qualification condition.
In one possible implementation, the second amplification threshold is 15%.
In one possible implementation manner, when the well temperature stability evaluation information indicates that the standing aged mixed solution has no hard precipitate, the target parameter of the standing aged mixed solution is amplified less than the second amplification threshold, and the target parameter of the standing aged mixed solution is in a specified range, it is determined that the compatibility of the oil testing working solution and the drilling fluid meets the qualification condition.
In one possible implementation manner, when the well temperature stability evaluation information indicates that the standing aged mixed solution has hard precipitation, the target parameter of the standing aged mixed solution is amplified less than the second amplification threshold, and any one of three conditions that the target parameter of the standing aged mixed solution is in a specified range is not satisfied, it may be determined that the compatibility of the oil testing working solution and the drilling fluid satisfies a qualified condition.
In the embodiment of the application, the evaluation information obtained through the test can be used for obtaining the evaluation conclusion of the compatibility of the working fluid for testing oil into the well and the drilling fluid: the apparent viscosity increase is <15% in the primary compatibility evaluation experiment; no layering and no hard precipitation are caused in the normal temperature stability evaluation experiment; in addition, no hard precipitate exists in the long-term standing stability evaluation experiment at the well temperature, the apparent viscosity is less than 150mPa.s, the final cutting force is less than 30Pa, the high-temperature high-pressure fluid loss is less than 20mL, the density difference between the upper layer and the lower layer of the mixed solution, the apparent viscosity, the final cutting force and the high-temperature high-pressure fluid loss are less than 15 percent of the amplification 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 condition.
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 high in operability, gives out a compatibility evaluation report, is clear in good-bad judgment of compatibility, and can improve the oil testing efficiency and the exploitation period of a gas well.
The present application will be described in detail with reference to specific examples.
1. The compatibility evaluation steps of the modified polysulfonate testing oil working fluid for the A well and the polysulfonate drilling fluid for the B well are as follows:
s1, preliminary compatibility evaluation.
Mixing the modified polysulfonate testing oil working solution for the A well and the polysulfonate drilling fluid for the B well according to a certain proportion (1:0, 9:1, 8:2 and 7:3), pouring the mixture into an aging tank, aging the mixture in a variable-frequency roller heating furnace at 120 ℃ for 16 hours, detecting the apparent viscosity of a sample by using an electronic six-speed viscometer, and calculating the apparent viscosity increase of a mixed system relative to the testing oil working solution.
S2, evaluating normal temperature stability.
Pouring the mixed system in the step S1 into a measuring cylinder, and standing for 72 hours at normal temperature to observe whether layering exists or not and whether hard precipitation exists or not.
S3, evaluating long-term standing stability at well temperature.
If the apparent viscosity of the oil testing working fluid is increased by more than 20% after the evaluation of the step S1, and delamination and hard precipitation do not occur after the step S2, the long-term standing stability evaluation at the well temperature is carried out: mixing Gao Dan 001-H39 well modified polysulfonate drilling fluid and double-detection 18 well polysulfonate drilling fluid according to a certain proportion (1:0, 9:1, 8:2 and 7:3), 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 for 10 days at 120 ℃, measuring the density difference between an upper layer and a lower layer, apparent viscosity, final shear force and high-temperature high-pressure filtration loss, and calculating the amplification of the properties of the mixed system relative to the oil testing drilling fluid.
And S4, filling in a compatibility evaluation report of the test oil working solution and the drilling fluid, and evaluating the compatibility of the test oil working solution and the drilling fluid according to the data of the report.
Compatibility evaluation report books of the modified polysulfonate test oil working fluid for the A well and the polysulfonate drilling fluid for the B well are shown in the following table 1:
TABLE 1
2. The compatibility evaluation report of the C well test oil working fluid and the D well polysulfonate drilling fluid is shown in the following table 2:
TABLE 2
In summary, according to the scheme provided by the embodiment of the application, after the test oil well working fluid is mixed with the drilling fluid in the target oil well, the test is performed under the conditions of aging, normal-temperature standing and normal-temperature standing after aging to obtain the evaluation information of the mixed fluid, and the compatibility of the test oil well working fluid and the drilling fluid in the target oil well is determined through at least one of the evaluation information obtained by the test under the three conditions, so that the scheme for evaluating the performance of the test oil well working fluid in the target oil well through the compatibility of the test oil well working fluid and the drilling fluid is provided, the evaluation standard of the test oil well working fluid is expanded, the accurate quality evaluation of the test oil well working fluid can be respectively given for different oil wells, and the quality control effect of the test oil well working fluid is improved.
In the solution according to the above embodiment of the present application, the process of determining compatibility by evaluating information may be performed by a computer device. For example, after the technician obtains the above evaluation information by testing, the evaluation information is input to the computer device, and the computer device automatically calculates the compatibility evaluation from the evaluation information.
FIG. 4 is a block diagram of a performance testing apparatus for a test oil well fluid according to an exemplary embodiment, and as shown in FIG. 4, the performance testing apparatus for a test oil well fluid may be implemented as all or part of a computer device by hardware or a combination of hardware and software to perform all or part of the steps of the method shown in the corresponding embodiment of FIG. 2 or FIG. 3. The performance testing device of the oil testing 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 working fluid for testing oil into a well with a drilling fluid in a target oil well according to a specified proportion, obtaining a mixed fluid, performing aging treatment on the mixed fluid for a first time at a well temperature of the target oil well, obtaining an aged mixed fluid, and measuring apparent viscosity of the aged mixed fluid; the preliminary evaluation information includes a first apparent viscosity increase, which is an increase in apparent viscosity of the aged mixed liquor relative to 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 for a second period of 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 precipitation or not;
a third obtaining module 403, configured to obtain well temperature stability evaluation information, where the well temperature stability evaluation information is obtained after the aged mixed solution is left for a third period of time at the well temperature; the well temperature static stability evaluation information comprises whether the static aged mixed solution has hard precipitation or not and target parameter amplification of the static aged mixed solution; the target parameter amplification is the amplification of the target parameter of the mixed liquid after standing and aging relative to the target parameter of the mixed liquid; the target parameters comprise at least one of upper and lower layer density difference, apparent viscosity, final shear force and high-temperature high-pressure filtration loss;
and the compatibility determining module 404 is configured to determine compatibility of the working fluid for testing oil and the drilling fluid according to at least one of the preliminary evaluation information, the normal temperature stability evaluation information and the well temperature stability evaluation information.
In one possible implementation manner, the mixed solution is obtained by mixing the oil test well working solution and the drilling fluid according to at least two specified ratios, and the mixed solution is at least two ratios;
the first apparent viscosity increase is the maximum of the increases in apparent viscosity of the aged mixture of at least two proportions relative to the apparent viscosity of the mixture;
the target parameter amplification is a maximum value of the amplification of the target parameter of the stationary aged mixed liquid relative to the target parameter of the mixed liquid of at least two proportions.
In a possible implementation manner, the third obtaining module 403 is configured to perform the step of obtaining the well-temperature stability evaluation information when the first apparent viscosity increase is less than a first increase threshold value and the room-temperature stability evaluation information indicates that the mixed solution is not layered and not hard precipitated.
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 oil-testing working fluid and the drilling fluid meets the qualification condition when the well temperature stability evaluation information indicates that the standing aged mixed fluid has no hard precipitate, and the target parameter of the standing aged mixed fluid is increased to be less than a second increase threshold.
In one possible implementation, the second amplification threshold is 15%.
In a possible implementation manner, the compatibility determining module 404 is configured to determine that the compatibility of the working fluid for testing oil and the drilling fluid does not meet a 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 working fluid for testing oil and the drilling fluid does not meet the qualification condition when the normal temperature stability evaluation information indicates that the mixed fluid is layered, or indicates that the mixed fluid has hard precipitation.
In one possible implementation, the first duration is 16 hours; the second duration is 72 hours; the third period of time is 10 days.
In summary, according to the scheme provided by the embodiment of the application, after the test oil well working fluid is mixed with the drilling fluid in the target oil well, the test is performed under the conditions of aging, normal-temperature standing and normal-temperature standing after aging to obtain the evaluation information of the mixed fluid, and the compatibility of the test oil well working fluid and the drilling fluid in the target oil well is determined through at least one of the evaluation information obtained by the test under the three conditions, so that the scheme for evaluating the performance of the test oil well working fluid in the target oil well through the compatibility of the test oil well working fluid and the drilling fluid is provided, the evaluation standard of the test oil well working fluid is expanded, the accurate quality evaluation of the test oil well working fluid can be respectively given for different oil wells, and the quality control effect of the test oil well working fluid is improved.
It should be noted that, when the apparatus provided in the foregoing embodiment performs the functions thereof, only the division of the respective functional modules is used as an example, in practical application, the foregoing functional allocation may be performed 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 perform all or part of the functions described above.
The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.
Fig. 5 is a schematic diagram of a computer device, according to an example embodiment. The computer apparatus 500 includes a central processing unit (Central Processing Unit, CPU) 501, a system Memory 504 including a random access Memory (Random Access Memory, RAM) 502 and a Read-Only Memory (ROM) 503, and a system bus 505 connecting the system Memory 504 and the central processing unit 501. The computer device 500 also includes a basic Input/Output system (I/O) 506, which helps to transfer information between various devices within the computer device, and a mass storage device 507 for storing 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 coupled to the central processing unit 501 via an input output controller 510 coupled 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, the 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 a compact disk-Only (CD-ROM) drive.
The computer device readable medium may include computer device storage media and communication media without loss of generality. 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 (Erasable Programmable Read Only Memory, EPROM), electrically erasable programmable read-Only Memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), CD-ROM, digital video disk (Digital Video Disc, DVD), or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices. Of course, those skilled in the art will recognize that the computer device storage medium is not limited to the ones described above. The system memory 504 and mass storage device 507 described above may be collectively referred to as memory.
According to various embodiments of the present disclosure, the computer device 500 may also operate through a network, such as the Internet, to remote computer devices on the network. I.e. the computer device 500 may be connected to the network 512 via a network interface unit 511 connected to said system bus 505, or alternatively, the network interface unit 511 may be used to connect to other types of networks or remote computer device systems (not shown).
The memory also includes one or more programs stored in the memory, and the central processor 501 implements all or part of the steps of the methods shown in fig. 2 or 3 by executing the one or more programs.
Those skilled in the art will appreciate that in one or more of the examples described above, the functions described by the embodiments of the present disclosure may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, these 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 embodiment of the disclosure also provides a computer device, which comprises a processor and a memory, wherein at least one instruction, at least one section of program, a code set or an instruction set is stored in the memory, and the at least one instruction, the at least one section of program, the code set or the instruction set is loaded and executed by the processor to realize the performance test method of the oil testing working fluid.
The embodiment of the disclosure also provides a computer readable storage medium, wherein at least one instruction, at least one section of program, a code set or an instruction set is stored in the storage medium, and the at least one instruction, the at least one section of program, the code set or the instruction set is loaded and executed by a processor to realize the performance test method of the oil testing working fluid.
The disclosed embodiments also provide a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer readable storage medium, and the processor executes the computer instructions, so that the computer device executes the performance test method of the oil test 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 adaptations, uses, or adaptations of the disclosure following the general 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 is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (9)
1. The performance test method of the oil test well working fluid is characterized by comprising the following steps of:
obtaining preliminary evaluation information, wherein the preliminary evaluation information is obtained by mixing oil testing working fluid into a well and drilling fluid in a target oil well according to a specified proportion to obtain mixed fluid, performing aging treatment on the mixed fluid for a first time at the well temperature of the target oil well to obtain aged mixed fluid, and measuring apparent viscosity of the aged mixed fluid; the preliminary evaluation information includes a first apparent viscosity increase, which is an increase in apparent viscosity of the aged mixed liquor relative to 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 precipitation or not;
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 is not hard precipitated, executing a step of acquiring well temperature stability evaluation information, wherein the well temperature stability evaluation information is obtained after the aged mixed solution is kept stand for a third time period at the well temperature; the well temperature static stability evaluation information comprises whether the static aged mixed solution has hard precipitation or not and target parameter amplification of the static aged mixed solution; the target parameter amplification is the amplification of the target parameter of the mixed liquid after standing and aging relative to the target parameter of the mixed liquid; the target parameters comprise at least one of upper and lower layer density difference, apparent viscosity, final shear force and high-temperature high-pressure filtration loss;
and determining the compatibility of the oil testing 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 stability evaluation information.
2. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the mixed liquid is obtained by mixing the oil testing well-entering working liquid and the drilling liquid according to at least two specified proportions, and is a mixed liquid of at least two proportions;
the first apparent viscosity increase is the maximum of the increases in apparent viscosity of the aged mixture of at least two proportions relative to the apparent viscosity of the mixture;
the target parameter amplification is a maximum value of the amplification of the target parameter of the stationary aged mixed liquid relative to the target parameter of the mixed liquid of at least two proportions.
3. The method of claim 1, wherein determining compatibility of the test oil well fluid with the drilling fluid based on at least one of the preliminary evaluation information, the room temperature stability evaluation information, and the well temperature stability evaluation information comprises:
and when the well temperature static stability evaluation information indicates that the static aged mixed liquid has no hard precipitate, and the target parameter amplification of the static aged mixed liquid is smaller than a second amplification threshold value, determining that the compatibility of the oil testing well-entering working liquid and the drilling liquid meets the qualified condition.
4. The method of claim 1, wherein determining compatibility of the test oil well fluid with the drilling fluid based on at least one of the preliminary evaluation information, the room temperature stability evaluation information, and the well temperature stability evaluation information comprises:
and when the first apparent viscosity increase in the preliminary evaluation information is larger than a third increase threshold, determining that the compatibility of the oil testing working fluid and the drilling fluid does not meet the qualification condition.
5. The method of claim 1, wherein determining compatibility of the test oil well fluid with the drilling fluid based on at least one of the preliminary evaluation information, the room temperature stability evaluation information, and the well temperature stability evaluation information comprises:
and when the normal temperature stability evaluation information indicates that the mixed liquid is layered, or indicates that the mixed liquid has hard precipitation, determining that the compatibility of the oil testing well-entering working liquid and the drilling liquid does not meet the qualification condition.
6. The method according to any one of claims 1 to 5, wherein,
the first duration is 16 hours; the second duration is 72 hours; the third period of time is 10 days.
7. A performance testing device for a test oil well working fluid, the device comprising:
the system comprises a first acquisition module, a second acquisition module and a control module, wherein the first acquisition module is used for acquiring preliminary evaluation information, the preliminary evaluation information is to mix a working fluid for testing oil into a well with a drilling fluid in a target oil well according to a specified proportion to obtain a mixed fluid, perform aging treatment on the mixed fluid for a first time at the well temperature of the target oil well to obtain an aged mixed fluid, and measure the apparent viscosity of the aged mixed fluid; the preliminary evaluation information includes a first apparent viscosity increase, which is an increase in apparent viscosity of the aged mixed liquor relative to apparent viscosity of the mixed liquor;
the second acquisition module is used for acquiring normal temperature stability evaluation information, wherein the normal temperature stability evaluation information is obtained after the mixed solution is kept stand 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 precipitation or not;
a third obtaining module, configured to perform a step of obtaining well temperature stability evaluation information 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 is not hard precipitated, where the well temperature stability evaluation information is obtained after the aged mixed solution is left for a third period of time at the well temperature; the well temperature static stability evaluation information comprises whether the static aged mixed solution has hard precipitation or not and target parameter amplification of the static aged mixed solution; the target parameter amplification is the amplification of the target parameter of the mixed liquid after standing and aging relative to the target parameter of the mixed liquid; the target parameters comprise at least one of upper and lower layer density difference, apparent viscosity, final shear force and high-temperature high-pressure filtration loss;
And the compatibility determining module is used for determining the compatibility of the oil testing 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 stability evaluation information.
8. A computer device comprising a processor and a memory, wherein the memory stores at least one instruction, at least one program, a set of codes, or a set of instructions, the at least one instruction, the at least one program, the set of codes, or the set of instructions being loaded and executed by the processor to implement the method of testing the performance of a test oil well working fluid according to any one of claims 1 to 6.
9. A computer readable storage medium having stored therein at least one instruction, at least one program, code set, or instruction set loaded and executed by a processor to implement the performance testing method of a test oil well working fluid according to any one of claims 1 to 6.
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