CN114135276B - Formation pressure determination method, determination device, processor and determination system - Google Patents
Formation pressure determination method, determination device, processor and determination system Download PDFInfo
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Abstract
The application provides a method, a device, a processor and a system for determining formation pressure, wherein the method comprises the following steps: acquiring first formation pressure which is a target formation pressure corresponding to the drilled well at a preset historical moment; calculating a corresponding second formation pressure according to the first formation pressure, wherein the second formation pressure is a target formation pressure corresponding to a new well after a new well is drilled at a preset historical moment; and determining a third formation pressure according to the plurality of second formation pressures, wherein the third formation pressure is the target formation pressure corresponding to the new well after the new well is drilled at the preset moment, the preset historical moments corresponding to the plurality of second formation pressures are different, all formations of the new well are sequentially used as target formations, and the pressure of all formations of the new well at the preset moment is sequentially determined, so that the problem that all formation pressures of the new well are difficult to predict in the prior art is solved.
Description
Technical Field
The application relates to the technical field of formation pressure prediction, in particular to a determination method, a determination device, a computer readable storage medium, a processor and a determination system for formation pressure.
Background
Pressure control is important in the drilling process, if the bottom hole pressure is smaller than the formation pressure, formation fluid can enter the well bore, and after a large amount of formation fluid enters the well bore, accidents such as overflow, kick and even blowout are caused; if the bottom hole pressure is greater than the formation pressure, drilling fluid can enter the reservoir in a large amount, so that the reservoir is polluted; if the bottom hole pressure is greater than the formation fracture pressure, lost circulation can result, leading to substantial loss of drilling fluid, and even "lost circulation". Meanwhile, as the production time increases, the pressure of the reservoir is continuously reduced, the non-uniformity of the pressure distribution of the reservoir is increased, and the difficulty of formation pressure prediction is also increased.
The determination of each layer of pressure in the well drilling operation is mainly from adjacent wells at present, but with the increase of the number of well distribution and the long-time exploitation of oil fields, the formation pressure has strong uncertainty. For the blocks with smaller borehole density and larger well spacing, the pressure change is more gentle; for areas with larger borehole density and smaller well spacing, long-term well placement and production can lead to reduced reservoir formation pressure, i.e., actual reservoir formation pressure is less than the formation pressure measured when adjacent wells are drilled, increasing the risk in drilling operations.
The above information disclosed in the background section is only for enhancement of understanding of the background art from the technology described herein and, therefore, may contain some information that does not form the prior art that is already known in the country to a person of ordinary skill in the art.
Disclosure of Invention
The main object of the present application is to provide a method, a device, a computer readable storage medium, a processor and a system for determining formation pressure, so as to solve the problem that the formation pressure of a new well is difficult to predict in the prior art.
According to an aspect of an embodiment of the present invention, there is provided a method for determining formation pressure, including: acquiring first formation pressure which is a target formation pressure corresponding to drilled well at a preset historical moment; calculating a corresponding second formation pressure according to the first formation pressure, wherein the second formation pressure is a target formation pressure corresponding to a new well after a new well is drilled at a preset historical moment; and determining a third formation pressure according to the second formation pressures, wherein the third formation pressure is the target formation pressure corresponding to the new well after the new well is drilled at a preset moment, and the preset historical moments corresponding to the second formation pressures are different.
Optionally, the target formation has a plurality of formations.
Optionally, calculating a corresponding second formation pressure from the first formation pressure includes: calculating a first pressure coefficient according to the first formation pressure and the average depth of the target formation, wherein the first pressure coefficient corresponds to the drilled well one by one; determining a second pressure coefficient according to the first pressure coefficient, wherein the second pressure coefficient is a pressure coefficient corresponding to the second formation pressure; and calculating the second formation pressure according to the second pressure coefficient and the average depth of the target formation.
Optionally, determining a second pressure coefficient from the first pressure coefficient includes: drawing a stratum pressure coefficient contour map at a preset historical moment according to the first pressure coefficient; and determining the second pressure coefficient according to the stratum pressure coefficient contour map.
Optionally, determining a second pressure coefficient from the formation pressure coefficient contour map includes: obtaining a distance ratio, wherein the distance ratio is the ratio of the distance between the new well and two adjacent pressure contour lines; and calculating the second pressure coefficient according to the distance ratio and the pressure coefficients of the two adjacent pressure contour lines.
Optionally, determining a third formation pressure from the plurality of second formation pressures includes: determining a formula for a trend line from the plurality of second formation pressures; and calculating the third formation pressure according to the formula of the trend line.
According to another aspect of the embodiment of the present invention, there is also provided a device for determining formation pressure, including: the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit acquires first formation pressure which is target formation pressure corresponding to drilled well at a preset historical moment; the calculation unit is used for calculating corresponding second formation pressure according to the first formation pressure, wherein the second formation pressure is the target formation pressure corresponding to a new well after a new well is drilled at a preset historical moment; and the determining unit is used for determining third formation pressure according to the second formation pressures, wherein the third formation pressure is the target formation pressure corresponding to the new well after the new well is drilled at a preset moment, and the preset historical moments corresponding to the second formation pressures are different.
According to still another aspect of the embodiments of the present invention, there is also provided a computer-readable storage medium including a stored program, wherein the program performs any one of the determination methods.
According to still another aspect of the embodiment of the present invention, there is further provided a processor, configured to execute a program, where the program executes any one of the determining methods.
According to yet another aspect of the embodiments of the present invention, there is also provided a determination system, including a determination device of formation pressure, for performing any one of the determination methods.
In the method for determining the formation pressure, first, a first formation pressure is obtained, wherein the first formation pressure is a target formation pressure corresponding to a drilled well at a preset historical moment; then, calculating a corresponding second formation pressure according to the first formation pressure, wherein the second formation pressure is a target formation pressure corresponding to a new well after a new well is drilled at a preset historical moment; and finally, determining and obtaining third formation pressure according to the second formation pressures, wherein the third formation pressure is the target formation pressure corresponding to the new well after the new well is drilled at a preset moment, and the preset historical moments corresponding to the second formation pressures are different. According to the determining method, the corresponding second formation pressure is calculated through the first formation pressure, namely, the target formation pressure of the new well is calculated through the target formation pressure of the new well corresponding to the preset historical moment, so that the third formation pressure is determined according to the plurality of second formation pressures, namely, the target formation pressure of the new well corresponding to the preset moment is determined according to the target formation pressure of the new well corresponding to the preset historical moment, all formations of the new well can be sequentially used as target formations, and therefore the pressure of all formations of the new well at the preset moment is sequentially determined, and the problem that all formation pressures of the new well are difficult to predict in the prior art is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 illustrates a flow chart of a method of determining formation pressure according to an embodiment of the application;
FIG. 2 shows a schematic diagram of a formation pressure determination device according to an embodiment of the application;
FIG. 3 illustrates a map of formation pressure coefficients for the 2019R formation according to one embodiment of the application;
FIG. 4 shows a map of formation pressure coefficients for the 2019K formation according to one embodiment of the application;
FIG. 5 shows a map of formation pressure coefficients for the 2019P formation according to one embodiment of the application; and
FIG. 6 shows a schematic diagram of trend lines for R, K, and P formations according to one embodiment of the application.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the application herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. Furthermore, in the description and in the claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element or "connected" to the other element through a third element.
As described in the background, in order to solve the above-mentioned problems, in an exemplary embodiment of the present application, a method for determining formation pressure, a determining device, a computer-readable storage medium, a processor, and a determining system are provided.
According to an embodiment of the application, a method of determining formation pressure is provided.
FIG. 1 is a flow chart of a method of determining formation pressure according to an embodiment of the application. As shown in fig. 1, the method comprises the steps of:
step S101, obtaining a first formation pressure, wherein the first formation pressure is a target formation pressure corresponding to a drilled well at a preset historical moment;
Step S102, calculating a corresponding second formation pressure according to the first formation pressure, wherein the second formation pressure is a target formation pressure corresponding to a new well after a new well is drilled at a preset historical moment;
Step S103, determining a third formation pressure according to the second formation pressures, wherein the third formation pressure is a target formation pressure corresponding to a new well after a new well is drilled at a preset moment, and the preset historical moments corresponding to the second formation pressures are different.
In the method for determining the formation pressure, first, a first formation pressure is obtained, wherein the first formation pressure is a target formation pressure corresponding to a drilled well at a preset historical moment; then, calculating a corresponding second formation pressure according to the first formation pressure, wherein the second formation pressure is a target formation pressure corresponding to a new well after a new well is drilled at a preset historical moment; and finally, determining and obtaining third formation pressure according to the second formation pressures, wherein the third formation pressure is the target formation pressure corresponding to the new well after the new well is drilled at a preset moment, and the preset historical moments corresponding to the second formation pressures are different. According to the determining method, the corresponding second formation pressure is calculated through the first formation pressure, namely, the target formation pressure of the new well is calculated through the target formation pressure of the new well corresponding to the preset historical moment, so that the third formation pressure is determined according to the plurality of second formation pressures, namely, the target formation pressure of the new well corresponding to the preset moment is determined according to the target formation pressure of the new well corresponding to the preset historical moment, all formations of the new well can be sequentially used as target formations, and therefore the pressure of all formations of the new well at the preset moment is sequentially determined, and the problem that all formation pressures of the new well are difficult to predict in the prior art is solved.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is illustrated in the flowcharts, in some cases the steps illustrated or described may be performed in an order other than that illustrated herein.
In one embodiment of the present application, the target formation has a plurality of formations. Specifically, the new well penetrates through a plurality of strata, and the plurality of strata can be sequentially used as target strata, so that the pressure of each stratum of the new well at a preset moment is sequentially determined.
In one embodiment of the application, calculating a corresponding second formation pressure from the first formation pressure includes: calculating a first pressure coefficient according to the first formation pressure and the average depth of the target formation, wherein the first pressure coefficient corresponds to the drilled well one by one; determining a second pressure coefficient according to the first pressure coefficient, wherein the second pressure coefficient is a pressure coefficient corresponding to the second formation pressure; and calculating the second formation pressure according to the second pressure coefficient and the average depth of the target formation. Specifically, the first formation pressure is the target formation pressure corresponding to the last year of drilling, and the formula is as follows: formation pressure = depth x pressure coefficient/100, substituting the first formation pressure and the average depth of the target formation into the formula to obtain first pressure coefficients corresponding to all drilled wells, determining second pressure coefficients corresponding to new wells according to the first pressure coefficients corresponding to all drilled wells, wherein the first pressure coefficients are the same as the preset historical time corresponding to the second pressure coefficients, namely determining second pressure coefficients corresponding to new wells in 2009 according to the first pressure coefficients corresponding to all drilled wells in 2009, substituting the second pressure coefficients and the average depth of the target formation into the formula, and calculating to obtain second formation pressure.
In one embodiment of the present application, determining the second pressure coefficient according to the first pressure coefficient includes: drawing a stratum pressure coefficient contour map at a preset historical moment according to the first pressure coefficient; and determining the second pressure coefficient according to the stratum pressure coefficient contour map. Specifically, a first pressure coefficient of each well drilled is obtained, a stratum pressure coefficient contour map at a preset historical moment is drawn by adopting Surfer software, and a second pressure coefficient can be determined through the stratum pressure coefficient contour map and the position of a new well in the map.
In one embodiment of the present application, determining the second pressure coefficient according to the formation pressure coefficient contour map includes: obtaining a distance ratio, wherein the distance ratio is the ratio of the distance between the new well and two adjacent pressure contour lines; and calculating the second pressure coefficient according to the distance ratio and the pressure coefficients of the two adjacent pressure contours. Specifically, the second pressure coefficient is equal to the pressure coefficient corresponding to the pressure contour line when the new well is located on the pressure contour line, the second pressure coefficient is greater than the pressure coefficient corresponding to one adjacent pressure contour line when the new well is located between two adjacent pressure contour lines, the second pressure coefficient is smaller than the pressure coefficient corresponding to the other adjacent pressure contour line, and the second pressure coefficient is obtained by means of equal ratio conversion according to the ratio of the distance between the new well and the two adjacent pressure contour lines and the pressure coefficient of the two adjacent pressure contour lines.
In one embodiment of the application, determining a third formation pressure from the plurality of second formation pressures includes: determining a formula for a trend line from the plurality of second formation pressures; and calculating the third formation pressure according to the formula of the trend line. Specifically, a plurality of relation curves of the second formation pressure and time are established, the curves are fitted to obtain a formula of a trend line, and the third formation pressure can be obtained by substituting preset moments into the formula of the trend line.
The embodiment of the application also provides a device for determining the formation pressure, and the device for determining the formation pressure can be used for executing the method for determining the formation pressure provided by the embodiment of the application. The following describes a device for determining formation pressure according to an embodiment of the present application.
FIG. 2 is a schematic diagram of a formation pressure determination device according to an embodiment of the present application. As shown in fig. 2, the apparatus includes:
An acquisition unit 10 for acquiring a first formation pressure, which is a target formation pressure corresponding to a drilled well at a predetermined history time;
a calculating unit 20, configured to calculate a corresponding second formation pressure according to the first formation pressure, where the second formation pressure is a target formation pressure corresponding to a new well after drilling the new well at a predetermined historical time;
And a determining unit 30, configured to determine a third formation pressure according to the second formation pressures, where the third formation pressure is a target formation pressure corresponding to the new well after the new well is drilled at a predetermined time, and the second formation pressures are different at predetermined historical times.
In the above-mentioned stratum pressure determining device, the obtaining unit obtains the first stratum pressure, the above-mentioned first stratum pressure is the goal stratum pressure that has been drilled of the preset historical moment correspondence; the calculation unit calculates a corresponding second formation pressure according to the first formation pressure, wherein the second formation pressure is a target formation pressure corresponding to a new well after a new well is drilled at a preset historical moment; the determining unit determines a third formation pressure according to the second formation pressures, wherein the third formation pressure is a target formation pressure corresponding to the new well after the new well is drilled at a preset moment, and the preset historical moments corresponding to the second formation pressures are different. The determining device calculates the corresponding second formation pressure through the first formation pressure, namely, calculates the target formation pressure of the new well corresponding to the preset historical moment through the target formation pressure of the drilled well corresponding to the preset historical moment, so that the third formation pressure is determined according to the second formation pressures, namely, the target formation pressure of the new well corresponding to the preset moment is determined according to the target formation pressures of the new well corresponding to the preset historical moment, all formations of the new well can be sequentially used as target formations, and therefore, the pressure of all formations of the new well at the preset moment is sequentially determined, and the problem that all formation pressures of the new well are difficult to predict in the prior art is solved.
In one embodiment of the present application, the target formation has a plurality of formations. Specifically, the new well penetrates through a plurality of strata, and the plurality of strata can be sequentially used as target strata, so that the pressure of each stratum of the new well at a preset moment is sequentially determined.
In one embodiment of the present application, the calculating unit includes a first calculating subunit, a first determining subunit, and a second calculating subunit, where the first calculating subunit is configured to calculate a first pressure coefficient according to the first formation pressure and an average depth of the target formation, where the first pressure coefficient corresponds to the drilled well one to one; the first determining subunit is configured to determine a second pressure coefficient according to the first pressure coefficient, where the second pressure coefficient is a pressure coefficient corresponding to the second formation pressure; the second calculating subunit is configured to calculate the second formation pressure according to the second pressure coefficient and the average depth of the target formation. Specifically, the first formation pressure is the target formation pressure corresponding to the last year of drilling, and the formula is as follows: formation pressure = depth x pressure coefficient/100, substituting the first formation pressure and the average depth of the target formation into the formula to obtain first pressure coefficients corresponding to all drilled wells, determining second pressure coefficients corresponding to new wells according to the first pressure coefficients corresponding to all drilled wells, wherein the first pressure coefficients are the same as the preset historical time corresponding to the second pressure coefficients, namely determining second pressure coefficients corresponding to new wells in 2009 according to the first pressure coefficients corresponding to all drilled wells in 2009, substituting the second pressure coefficients and the average depth of the target formation into the formula, and calculating to obtain second formation pressure.
In one embodiment of the present application, the determining subunit includes a processing module and a determining module, where the processing module is configured to draw a stratum pressure coefficient contour map at a predetermined historical time according to the first pressure coefficient; the determining module is used for determining the second pressure coefficient according to the stratum pressure coefficient contour map. Specifically, a first pressure coefficient of each well drilled is obtained, a stratum pressure coefficient contour map at a preset historical moment is drawn by adopting Surfer software, and a second pressure coefficient can be determined through the stratum pressure coefficient contour map and the position of a new well in the map.
In one embodiment of the present application, the determining module includes an obtaining sub-module and a calculating sub-module, where the obtaining sub-module is configured to obtain a distance ratio, where the distance ratio is a ratio of distances between the new well and two adjacent pressure contours; the calculating submodule is used for calculating the second pressure coefficient according to the distance ratio and the pressure coefficients of the two adjacent pressure contours. Specifically, the second pressure coefficient is equal to the pressure coefficient corresponding to the pressure contour line when the new well is located on the pressure contour line, the second pressure coefficient is greater than the pressure coefficient corresponding to one adjacent pressure contour line when the new well is located between two adjacent pressure contour lines, the second pressure coefficient is smaller than the pressure coefficient corresponding to the other adjacent pressure contour line, and the second pressure coefficient is obtained by means of equal ratio conversion according to the ratio of the distance between the new well and the two adjacent pressure contour lines and the pressure coefficient of the two adjacent pressure contour lines.
In one embodiment of the present application, the determining unit includes a second determining subunit and a third calculating subunit, where the second determining subunit is configured to determine a formula of the trend line according to a plurality of second formation pressures; the third calculation subunit is configured to calculate the third formation pressure according to the formula of the trend line. Specifically, a plurality of relation curves of the second formation pressure and time are established, the curves are fitted to obtain a formula of a trend line, and the third formation pressure can be obtained by substituting preset moments into the formula of the trend line.
According to another aspect of the embodiment of the present invention, there is also provided a determining system, including a determining device for determining a formation pressure, where the determining device is configured to perform any one of the determining methods described above.
The system for determining the formation pressure comprises a determination device for determining the formation pressure, wherein an acquisition unit acquires a first formation pressure which is a target formation pressure corresponding to a drilled well at a preset historical moment; the calculation unit calculates a corresponding second formation pressure according to the first formation pressure, wherein the second formation pressure is a target formation pressure corresponding to a new well after a new well is drilled at a preset historical moment; the determining unit determines a third formation pressure according to the second formation pressures, wherein the third formation pressure is a target formation pressure corresponding to the new well after the new well is drilled at a preset moment, and the preset historical moments corresponding to the second formation pressures are different. The determining device calculates the corresponding second formation pressure through the first formation pressure, namely, calculates the target formation pressure of the new well corresponding to the preset historical moment through the target formation pressure of the drilled well corresponding to the preset historical moment, so that the third formation pressure is determined according to the second formation pressures, namely, the target formation pressure of the new well corresponding to the preset moment is determined according to the target formation pressures of the new well corresponding to the preset historical moment, all formations of the new well can be sequentially used as target formations, and therefore, the pressure of all formations of the new well at the preset moment is sequentially determined, and the problem that all formation pressures of the new well are difficult to predict in the prior art is solved.
In order to enable those skilled in the art to more clearly understand the technical solution of the present application, the technical solution of the present application will be described below with reference to specific embodiments.
Examples
The formation pressures of the R formation, the K formation and the P formation in 2013-2019 of the drilled well are obtained, and a first pressure coefficient can be obtained through calculation according to a formula;
Drawing stratum pressure coefficient contour maps of stratum in 2013-2019 according to a first pressure coefficient, as shown in fig. 3-5, wherein fig. 3 shows stratum pressure coefficient contour maps of stratum R in 2019, fig. 4 shows stratum pressure coefficient contour maps of stratum K in 2019, fig. 5 shows stratum pressure coefficient contour maps of stratum P in 2019, wherein five-pointed star is drilled, X is a new well, the horizontal coordinate is a distance scale in the east-west direction, the vertical coordinate is a distance scale in the north-south direction, the stratum pressure coefficient contour maps are divided into a plurality of areas by pressure contour lines, the area sequence numbers sequentially increase from low to high, for example, as shown in fig. 3, the area 9 is positioned between the pressure contour line of the pressure coefficient 0.8 and the pressure contour line of the pressure coefficient 0.82, and the pressure coefficient corresponding to the area 9 is between 0.8 and 0.82;
Determining a second pressure coefficient according to the stratum pressure coefficient contour map of each stratum in 2013-2019, namely obtaining the pressure coefficient of each stratum of a new well X in 2013-2019, wherein the stratum pressure coefficient of the R stratum corresponding to the new well in 2019 can be determined according to the stratum pressure coefficient contour map of the R stratum in 2019 as shown in table 1, the new well X is positioned in a region 20, namely between the pressure contour of the pressure coefficient 1.02 and the pressure contour of the pressure coefficient 1.04, the ratio of the distance from the new well X to the pressure contour of the pressure coefficient 1.02 to the distance from the pressure contour of the pressure coefficient 1.04 is 2:1, the pressure coefficient of the new well X is 1.033 as shown in fig. 4, namely between the pressure contour of the pressure coefficient 1 and the pressure contour of the pressure coefficient 1.02, the distance from the new well X to the pressure contour of the pressure coefficient 1 is 1:2, and the ratio of the distance from the new well X to the pressure contour of the pressure coefficient 1.02 is 1:1, and the pressure coefficient of the new well X is 1.007;
TABLE 1
| 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | |
| R layer | 1.048 | 1.048 | 1.044 | 1.044 | 1.044 | 1.04 | 1.033 |
| K layer | 1.013 | 1.013 | 1.013 | 1.01 | 1.01 | 1.008 | 1.007 |
| P layer | 1.25 | 1.21 | 1.16 | 1.2 | 1.12 | 1.15 | 1.1 |
Calculating to obtain second formation pressure according to the second pressure coefficient and the average depth of the target formation, namely obtaining formation pressure of each formation of the new well X in 2013 to 2019, as shown in table 2;
TABLE 2
| 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | |
| R layer | 2.62 | 2.62 | 2.61 | 2.61 | 2.61 | 2.60 | 2.58 |
| K layer | 4.05 | 4.05 | 4.05 | 4.04 | 4.04 | 4.03 | 4.03 |
| P layer | 12.5 | 12.1 | 11.6 | 12 | 11.2 | 11.5 | 11 |
According to the formula of the trend line determined by the plurality of second formation pressures in table 2, as shown in fig. 6, a relationship curve between the second formation pressures in each year of the R formation and the years is fitted to obtain a trend line 1, wherein the formula of the trend line 1 is y= -0.0054x+13.48, R 2 = 0.8245, which indicates that the fitting degree is higher, a relationship curve between the second formation pressures in each year of the K formation and the years is fitted to obtain a trend line 2, y= -0.0041x+12.393, R 2 = 0.8985, which indicates that the fitting degree is higher, and a relationship curve between the second formation pressures in each year of the P formation and the years is fitted to obtain a trend line 3, y= -0.217x+450.9, R 2 =0.791, which indicates that the fitting degree is higher;
And calculating to obtain the third formation pressure according to the trend line formula, wherein the formation pressure of the R formation corresponding to the new well in 2020 is 2.57MPa, the formation pressure of the R formation corresponding to the new well in 2021 is 2.57MPa, the formation pressure of the K formation corresponding to the new well in 2020 is 4.11MPa, the formation pressure of the K formation corresponding to the new well in 2021 is 4.11MPa, the formation pressure of the P formation corresponding to the new well in 2020 is 10.74MPa, and the formation pressure of the P formation corresponding to the new well in 2021 is 10.52MPa.
The device for determining the formation pressure comprises a processor and a memory, wherein the acquisition unit, the calculation unit, the determination unit and the like are all stored in the memory as program units, and the processor executes the program units stored in the memory to realize corresponding functions.
The processor includes a kernel, and the kernel fetches the corresponding program unit from the memory. The inner core can be provided with one or more than one, and the problem that the formation pressure of a new well is difficult to predict in the prior art is solved by adjusting the parameters of the inner core.
The memory may include volatile memory, random Access Memory (RAM), and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM), among other forms in computer readable media, the memory including at least one memory chip.
An embodiment of the present invention provides a computer-readable storage medium having stored thereon a program which, when executed by a processor, implements the above-described determination method.
The embodiment of the invention provides a processor, which is used for running a program, wherein the determining method is executed when the program runs.
The embodiment of the invention provides equipment, which comprises a processor, a memory and a program stored in the memory and capable of running on the processor, wherein the processor realizes at least the following steps when executing the program:
step S101, obtaining a first formation pressure, wherein the first formation pressure is a target formation pressure corresponding to a drilled well at a preset historical moment;
Step S102, calculating a corresponding second formation pressure according to the first formation pressure, wherein the second formation pressure is a target formation pressure corresponding to a new well after a new well is drilled at a preset historical moment;
Step S103, determining a third formation pressure according to the second formation pressures, wherein the third formation pressure is a target formation pressure corresponding to a new well after a new well is drilled at a preset moment, and the preset historical moments corresponding to the second formation pressures are different.
The device herein may be a server, PC, PAD, cell phone, etc.
The application also provides a computer program product adapted to perform, when executed on a data processing device, a program initialized with at least the following method steps:
step S101, obtaining a first formation pressure, wherein the first formation pressure is a target formation pressure corresponding to a drilled well at a preset historical moment;
Step S102, calculating a corresponding second formation pressure according to the first formation pressure, wherein the second formation pressure is a target formation pressure corresponding to a new well after a new well is drilled at a preset historical moment;
Step S103, determining a third formation pressure according to the second formation pressures, wherein the third formation pressure is a target formation pressure corresponding to a new well after a new well is drilled at a preset moment, and the preset historical moments corresponding to the second formation pressures are different.
In the foregoing embodiments of the present invention, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed technology may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units may be a logic function division, and there may be another division manner when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units described above, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a computer readable storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the above-mentioned methods of the various embodiments of the present invention. And the aforementioned computer-readable storage medium includes: a usb disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:
1) In the method for determining the formation pressure, first, the first formation pressure is acquired, wherein the first formation pressure is the target formation pressure corresponding to the drilled well at the preset historical moment; then, calculating a corresponding second formation pressure according to the first formation pressure, wherein the second formation pressure is a target formation pressure corresponding to a new well after a new well is drilled at a preset historical moment; and finally, determining and obtaining third formation pressure according to the second formation pressures, wherein the third formation pressure is the target formation pressure corresponding to the new well after the new well is drilled at a preset moment, and the preset historical moments corresponding to the second formation pressures are different. According to the determining method, the corresponding second formation pressure is calculated through the first formation pressure, namely, the target formation pressure of the new well is calculated through the target formation pressure of the new well corresponding to the preset historical moment, so that the third formation pressure is determined according to the plurality of second formation pressures, namely, the target formation pressure of the new well corresponding to the preset moment is determined according to the target formation pressure of the new well corresponding to the preset historical moment, all formations of the new well can be sequentially used as target formations, and therefore the pressure of all formations of the new well at the preset moment is sequentially determined, and the problem that all formation pressures of the new well are difficult to predict in the prior art is solved.
2) In the stratum pressure determining device, an acquiring unit acquires first stratum pressure which is a target stratum pressure corresponding to a drilled well at a preset historical moment; the calculation unit calculates a corresponding second formation pressure according to the first formation pressure, wherein the second formation pressure is a target formation pressure corresponding to a new well after a new well is drilled at a preset historical moment; the determining unit determines a third formation pressure according to the second formation pressures, wherein the third formation pressure is a target formation pressure corresponding to the new well after the new well is drilled at a preset moment, and the preset historical moments corresponding to the second formation pressures are different. The determining device calculates the corresponding second formation pressure through the first formation pressure, namely, calculates the target formation pressure of the new well corresponding to the preset historical moment through the target formation pressure of the drilled well corresponding to the preset historical moment, so that the third formation pressure is determined according to the second formation pressures, namely, the target formation pressure of the new well corresponding to the preset moment is determined according to the target formation pressures of the new well corresponding to the preset historical moment, all formations of the new well can be sequentially used as target formations, and therefore, the pressure of all formations of the new well at the preset moment is sequentially determined, and the problem that all formation pressures of the new well are difficult to predict in the prior art is solved.
3) The system for determining the formation pressure comprises a determination device for determining the formation pressure, wherein an acquisition unit acquires first formation pressure which is a target formation pressure corresponding to a drilled well at a preset historical moment; the calculation unit calculates a corresponding second formation pressure according to the first formation pressure, wherein the second formation pressure is a target formation pressure corresponding to a new well after a new well is drilled at a preset historical moment; the determining unit determines a third formation pressure according to the second formation pressures, wherein the third formation pressure is a target formation pressure corresponding to the new well after the new well is drilled at a preset moment, and the preset historical moments corresponding to the second formation pressures are different. The determining device calculates the corresponding second formation pressure through the first formation pressure, namely, calculates the target formation pressure of the new well corresponding to the preset historical moment through the target formation pressure of the drilled well corresponding to the preset historical moment, so that the third formation pressure is determined according to the second formation pressures, namely, the target formation pressure of the new well corresponding to the preset moment is determined according to the target formation pressures of the new well corresponding to the preset historical moment, all formations of the new well can be sequentially used as target formations, and therefore, the pressure of all formations of the new well at the preset moment is sequentially determined, and the problem that all formation pressures of the new well are difficult to predict in the prior art is solved.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (8)
1. A method of determining formation pressure, comprising:
Acquiring first formation pressure which is a target formation pressure corresponding to drilled well at a preset historical moment;
Calculating a corresponding second formation pressure according to the first formation pressure, wherein the second formation pressure is a target formation pressure corresponding to a new well after a new well is drilled at a preset historical moment;
Determining a third formation pressure according to the second formation pressures, wherein the third formation pressure is a target formation pressure corresponding to the new well after the new well is drilled at a preset moment, and the preset historical moments corresponding to the second formation pressures are different; calculating a corresponding second formation pressure from the first formation pressure, comprising: calculating a first pressure coefficient according to the first formation pressure and the average depth of the target formation, wherein the first pressure coefficient corresponds to the drilled well one by one; determining a second pressure coefficient according to the first pressure coefficient, wherein the second pressure coefficient is a pressure coefficient corresponding to the second formation pressure; calculating to obtain the second formation pressure according to the second pressure coefficient and the average depth of the target formation; determining a third formation pressure from the plurality of second formation pressures, comprising: determining a formula for a trend line from the plurality of second formation pressures; and calculating the third formation pressure according to the formula of the trend line.
2. The method of claim 1, wherein the target formation has a plurality of formations.
3. The method of claim 2, wherein determining a second pressure coefficient from the first pressure coefficient comprises:
drawing a stratum pressure coefficient contour map at a preset historical moment according to the first pressure coefficient;
and determining the second pressure coefficient according to the stratum pressure coefficient contour map.
4. A method according to claim 3, wherein determining a second pressure coefficient from the formation pressure coefficient contour map comprises:
obtaining a distance ratio, wherein the distance ratio is the ratio of the distance between the new well and two adjacent pressure contour lines;
and calculating the second pressure coefficient according to the distance ratio and the pressure coefficients of the two adjacent pressure contour lines.
5. A device for determining formation pressure, comprising:
The system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit acquires first formation pressure which is target formation pressure corresponding to drilled well at a preset historical moment;
the calculation unit is used for calculating corresponding second formation pressure according to the first formation pressure, wherein the second formation pressure is the target formation pressure corresponding to a new well after a new well is drilled at a preset historical moment;
A determining unit, configured to determine a third formation pressure according to a plurality of second formation pressures, where the third formation pressure is a target formation pressure corresponding to the new well after the new well is drilled at a predetermined time, and the predetermined historical times corresponding to the plurality of second formation pressures are different; the calculation unit comprises a first calculation subunit, a first determination subunit and a second calculation subunit, wherein the first calculation subunit is used for calculating a first pressure coefficient according to the first stratum pressure and the average depth of the target stratum, and the first pressure coefficient corresponds to the drilled well one by one; the first determining subunit is used for determining a second pressure coefficient according to the first pressure coefficient, wherein the second pressure coefficient is a pressure coefficient corresponding to the second formation pressure; the second calculation subunit is used for calculating the second formation pressure according to the second pressure coefficient and the average depth of the target formation; the determining unit comprises a second determining subunit and a third calculating subunit, wherein the second determining subunit is used for determining formulas of trend lines according to a plurality of second formation pressures; the third calculation subunit is used for calculating the third formation pressure according to the formula of the trend line.
6. A computer-readable storage medium, characterized in that the computer-readable storage medium includes a stored program, wherein the program performs the determination method of any one of claims 1 to 4.
7. A processor for running a program, wherein the program when run performs the determination method of any one of claims 1 to 4.
8. A determination system comprising a determination device of formation pressure, characterized in that the determination device is adapted to perform the determination method of any one of claims 1 to 4.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667573A (en) * | 2018-12-12 | 2019-04-23 | 中国石油化工股份有限公司江汉油田分公司勘探开发研究院 | Three-dimensional shale reservoir pore pressure prediction method, apparatus and electronic equipment |
Family Cites Families (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3785446A (en) * | 1971-08-20 | 1974-01-15 | Continental Oil Co | Predicting occurrence of geopressured subterranean zones during drilling |
| SU1150356A1 (en) * | 1983-11-02 | 1985-04-15 | Sp Kt B Promyslovoj Geofiziki | Method of determining formation pressure while drilling a hole |
| US4981037A (en) * | 1986-05-28 | 1991-01-01 | Baroid Technology, Inc. | Method for determining pore pressure and horizontal effective stress from overburden and effective vertical stresses |
| US5233866A (en) * | 1991-04-22 | 1993-08-10 | Gulf Research Institute | Apparatus and method for accurately measuring formation pressures |
| US5282384A (en) * | 1992-10-05 | 1994-02-01 | Baroid Technology, Inc. | Method for calculating sedimentary rock pore pressure |
| RU2167289C2 (en) * | 1999-01-19 | 2001-05-20 | Самарская государственная архитектурно-строительная академия | Method of determining formation pressure in oil well |
| CA2482457A1 (en) * | 2002-04-10 | 2004-03-18 | Schlumberger Technology Corporation | Method, apparatus and system for pore pressure prediction in presence of dipping formations |
| CN101942992B (en) * | 2010-08-19 | 2013-11-20 | 中国石油大学(北京) | Method for predicting pore pressure of regional high-pressure saltwater layer by utilizing curvature of face of geologic structure |
| US9157316B2 (en) * | 2011-01-31 | 2015-10-13 | Baker Hughes Incorporated | System and method for determining pressure transition zones |
| CN102562052B (en) * | 2012-02-26 | 2016-02-03 | 中国石油天然气集团公司 | Method for recognizing harm bodies of casing failure of shallow layer of close well spacing |
| CN102720487B (en) * | 2012-06-29 | 2015-10-14 | 中国石油天然气股份有限公司 | System and method for acquiring formation pressure of gas reservoir |
| US20140076632A1 (en) * | 2012-09-20 | 2014-03-20 | Baker Hughes Incoroporated | Method to predict overpressure uncertainty from normal compaction trendline uncertainty |
| WO2015073017A1 (en) * | 2013-11-15 | 2015-05-21 | Halliburton Energy Services, Inc. | Borehole pressure management methods and systems with adaptive learning |
| CN103628866B (en) * | 2013-11-22 | 2017-02-08 | 中国石油集团川庆钻探工程有限公司地球物理勘探公司 | Method for obtaining stratum pressure coefficients of stratum |
| US20150315894A1 (en) * | 2014-03-31 | 2015-11-05 | M-I L.L.C. | Model for strengthening formations |
| CN104267429B (en) * | 2014-09-30 | 2016-11-09 | 中国石油天然气股份有限公司 | Method and device for determining formation pressure |
| US10019541B2 (en) * | 2015-09-02 | 2018-07-10 | GCS Solutions, Inc. | Methods for estimating formation pressure |
| CN107025360A (en) * | 2017-04-21 | 2017-08-08 | 中国石油大港油田勘探开发研究院 | One kind recovers Ancient rice fields method using well-log information |
| CN106979006A (en) * | 2017-05-17 | 2017-07-25 | 中国神华能源股份有限公司 | The determination method and apparatus of strata pressure |
| US11162358B2 (en) * | 2017-06-21 | 2021-11-02 | Schlumberger Technology Corporation | Downhole characterization of formation pressure |
| CN108801538B (en) * | 2018-06-15 | 2020-10-30 | 中国石油大学(华东) | A method for calculating the pressure decay gradient |
| CN110857626B (en) * | 2018-08-14 | 2022-11-04 | 中国石油天然气股份有限公司 | While-drilling pressure prediction method and device based on comprehensive logging parameters and storage medium |
| CN109143358B (en) * | 2018-08-31 | 2019-09-13 | 中国石油大学(北京) | A method and device for obtaining the pressure structure of deep and ultra-deep clastic rock formations |
| CN111060672B (en) * | 2019-12-30 | 2022-02-22 | 中国海洋石油集团有限公司 | Method for reproducing whole history process of forming high-temperature overpressure natural gas reservoir |
| CN111411947B (en) * | 2020-05-14 | 2023-09-15 | 中国石油天然气集团有限公司 | Method for predicting formation pressure based on HTL parameters |
-
2020
- 2020-08-12 CN CN202010807983.5A patent/CN114135276B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667573A (en) * | 2018-12-12 | 2019-04-23 | 中国石油化工股份有限公司江汉油田分公司勘探开发研究院 | Three-dimensional shale reservoir pore pressure prediction method, apparatus and electronic equipment |
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