Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described 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.
In accordance with an embodiment of the present invention, there is provided a method of data processing for a PDC bit, where the steps illustrated in the flowchart of the figures may be performed in a computer system, such as a set of computer executable instructions, and where a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than that presented herein.
FIG. 1 is a data processing method of a PDC bit according to an embodiment of the present invention, as shown in FIG. 1, the method including the steps of:
and S102, performing drilling operation on a target layer by using a PDC drill bit, and acquiring drilling motion data acquired by a data sensor on the PDC drill bit in the drilling operation process.
It should be noted that: the target layer refers to the stratum drilled by the PDC drill bit.
It should also be noted that: the data sensor includes at least any one of: a triaxial acceleration sensor, a triaxial gyroscope and an axial fluxgate sensor. That is, this PDC drill bit portability multiple sensor detects the parameter such as vibration, well deviation, rotational speed of drill bit self to realize big data storage in the pit.
Further, in an alternative example, prior to performing a drilling operation on a target formation using a PDC bit, the method further comprises: acquiring specified characteristic parameters of the target layer, wherein the specified characteristic parameters at least comprise any one of the following parameters: data of a drillability profile of at least a portion of a wellbore section of the target formation, wear data of a historical dull bit of the target formation, and a well condition requirement of the target formation; determining structural characteristics of the PDC drill bit based on the specified characteristic parameters of the target layer to generate the PDC drill bit with the structural characteristics, and further performing drilling operation on the target layer, wherein the structural characteristics at least comprise any one of the following characteristics: the drill bit mainly comprises a cutting structure, a crown shape type, a hydraulic structure, a gauge structure, a detection system and a sealing parameter.
That is, prior to performing drilling operations on a target formation using a PDC bit, the PDC bit is formulated based on the relevant data for an initial drilling process.
And step S104, determining the wear data of the PDC drill bit after the PDC drill bit finishes the drilling operation of the target layer.
Further, in an alternative example, adjusting the structural characteristics of the PDC bit to obtain target structural characteristics based on the drilling motion data and the wear data comprises: judging whether the PDC drill bit meets a preset condition or not according to the drilling motion data and the abrasion data; determining the structural feature of the PDC drill bit as a target structural feature under the condition that the PDC drill bit meets the preset condition; and under the condition that the PDC drill bit does not meet the preset condition, adjusting the structural characteristics of the PDC drill bit based on the drilling motion data and the abrasion data until the PDC drill bit meets the preset condition.
That is, as shown in fig. 2, after the drilling motion data and the wear data are obtained, the relationship between the bit dynamics and the actual drilling parameters is established (i.e., the relationship between the bit dynamics data of the PDC bit and the formation, the drilling tool assembly, and the drilling parameters is established by statistical analysis of the bit dynamics data); and then according to the relation between drill bit dynamics and real drilling parameters, the defects of the original design are analyzed by combining drill bit abrasion data, the drill bit is comprehensively optimized in a targeted mode, and the performance of the drill bit is further improved.
Further, in an optional example, determining whether the PDC bit satisfies a predetermined condition based on the drilling motion data and the wear data includes: performing big data processing on the drilling motion data, and establishing an incidence relation between the drilling motion data and the formation parameters of the target layer, the drilling parameters of the target layer and a drilling tool assembly; and analyzing the correlation in combination with the wear data to determine whether the PDC bit meets a preset condition.
Further, in an optional example, in the event that the PDC bit does not satisfy a preset condition, adjusting a characteristic parameter of the PDC bit based on the drilling motion data and the wear data includes: adjusting a characteristic parameter of the PDC bit based on an analysis result, wherein the analysis result is obtained by analyzing the correlation based on the wear data.
Namely, the relationship between the drill bit dynamics and the actual drilling parameters is established by taking actual drilling stratum parameters, drilling tool combinations and drilling parameters as data input, taking the PDC dynamics of the PDC drill bit in the well bottom, such as stick-slip vibration, skip drilling vibration, whirling motion and the like as theoretical basis, and statistically analyzing the motion data of the drill bit to establish the relationship between the motion mode of the drill bit in the well bottom and the stratum, the drilling tool combinations and the drilling parameters. And then the relationship between the drill bit motion and the stratum, the drilling tool combination and the drilling parameters is analyzed according to the big data, the design deficiency of the PDC drill bit is analyzed, the design of the drill bit is optimized and perfected in a targeted manner, the bad motion of the drill bit at the bottom of the well is reduced, and the performance of the drill bit is improved.
And S106, adjusting the structural characteristics of the PDC drill bit according to the drilling motion data and the abrasion data to obtain target structural characteristics, and performing drilling operation by adopting the PDC drill bit with the target structural characteristics.
Namely, the method is a method for scientifically and pertinently perfecting the optimized design of the PDC drill bit by establishing the relationship between the drill bit dynamics and the actual drilling parameters on the basis of acquiring the digital parameters of the real motion state of the PDC drill bit in the underground.
The invention will now be described with reference to another embodiment.
An intelligent PDC drill bit design method comprises the following processes:
s1: lithologic compositions and drillability analysis of the drilled formations, research reports on drilled dull bits, and data on requirements for specific well conditions are obtained.
It should be noted that: the lithologic composition and drillability analysis of the drilled formation may be obtained by any of the following means: firstly, collecting rock cores of a drilled stratum, carrying out rock component analysis and drillability analysis, and establishing a drillability profile of a well section; and secondly, performing rock mechanics analysis and drillability evaluation according to the logging data, and establishing a drillability profile of the whole well section.
It should be noted that: a drilled dull bit study report may be obtained as follows: determining the drilled wells, collecting a plurality of studies of the drilled blunt drill bits, evaluating the damage forms of the drill bits, and judging the key points of the drill bit design.
It should also be noted that: the special well condition requirement data refers to the special well condition requirements of the target formation to be drilled (i.e., the special well condition requirements to be drilled) that are used to guide subsequent drill bit designs.
S2: drill bit characteristics are selected based on empirical determinations. That is, based on the lithology characteristics of the formation being drilled, previously applied dull bit analysis, and well condition requirements, the primary cutting structure of the bit is determined, for example: crown shape type, hydraulic structure, gauge structure and other main parameters.
It should be noted that: lithology characteristics of the formation being drilled, dull bit analysis applied earlier, and well condition requirements are used to determine the overall structural parameters of the PDC bit (e.g., cutting configuration, number of blades, cutting tooth gauge and number, single or double row tooth configuration, crown shape type, short or long parabolic configuration, hydraulic configuration, fixed or adjustable port, port size and number, gauge, short, long, or helical gauge of the bit, detection system design, sensor mounting location design, seal design, etc.).
Wherein the crown shape type is determined by at least formation drillability and well type requirements; the hydraulic structure is at least determined by the well depth, the number of blades and the on-site working condition; the bit gage configuration is determined by at least the configuration of the interval in which the bit is used and the formation properties.
S3: intelligent design of PDC bits, such as: the design of crown shape, tooth arrangement, blade structure, hydraulic design, force balance optimization design and detection system design.
S4: and modeling and drawing the intelligent PDC drill bit so as to facilitate processing and production.
S5: the produced intelligent PDC drill bit is applied on site, and application data of the intelligent PDC drill bit are tracked and recorded, such as: bit wear data and bit motion data.
It should be noted that: the intelligent PDC drill bit for field application carries various sensors (such as a triaxial acceleration sensor, a triaxial fluxgate sensor and the like) for detecting parameters of vibration, well deviation, rotating speed and the like of the drill bit, so that underground big data storage is realized, and the data can be extracted through corresponding interfaces after the drill bit goes out of a well and analyzed and sorted.
S6: data analysis is performed, for example: and establishing a relationship between drill bit dynamics and actual drilling parameters, counting and analyzing drill bit dynamic data, and establishing a relationship between the PDC drill bit motion state and stratum, drilling tool combination and drilling parameters.
It should be noted that: the establishment of the relationship between bit dynamics and actual drilling parameters is based on PDC bit dynamics as statistical analysis software. The statistical analysis software takes actual drilling stratum parameters, drilling tool combinations and drilling parameters as data input, takes PDC dynamics such as stick-slip vibration, jump drilling vibration and whirling of a PDC drill bit at the bottom of a well as the theoretical basis, establishes the relationship between the motion mode of the drill bit at the bottom of the well and the stratum, the drilling tool combinations and the drilling parameters through statistical analysis of the motion data of the drill bit, and carries out various analyses. Such as the relationship between the bit pressure and the rotation speed and the mechanical drilling speed, the transverse vibration, the torsional vibration, the stick-slip vibration and the like of the drill bit, the continuous change rule of the borehole shape along with the well depth and the like.
S7: synthesize and optimize intelligent PDC drill bit. According to the relationship between drill bit dynamics and actual drilling parameters, the defects of the original design are analyzed by combining the abrasion data of the drill bit, the drill bit is comprehensively optimized in a targeted manner, and the performance of the drill bit is further improved.
That is, the design method is a method for establishing the relationship between the drill bit dynamics and the actual drilling parameters based on the digital parameters of the real motion state of the PDC drill bit in the underground during the field application link of the PDC drill bit, and then scientifically and pertinently perfecting the PDC drill bit optimization design (such as adjusting the cutting depth of the drill bit, optimizing the force balance of the drill bit, optimizing the gauge length of the drill bit and other parameters), reducing the bad motion of the drill bit in the bottom of the well, and further improving the performance of the drill bit.
It should be noted that: the intelligent PDC drill bit design method has the following advantages:
1. the application introduces the analysis of underground real bit motion data aiming at the design process of the traditional PDC bit. Dynamic analysis is provided for the optimal design of the PDC drill bit, the relationship between the drill bit motion and actual drilling parameters is established, and the performance of the drill bit can be further optimized in a targeted manner.
2. This application adopts the intelligent drill bit that has the detection function, can realize data acquisition and the storage of drill bit motion state in the pit, optimizes and also has the significance to drill bit and downhole drilling tool combination.
3. The digital closed loop that this application can realize PDC drill bit design shortens PDC drill bit and optimizes the iteration number, improves the drill bit performance by a wide margin, reduces the drilling cost.
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 different than presented herein.
The embodiment of the present application further provides a data processing device for a PDC drill bit, and it should be noted that the data processing device for a PDC drill bit according to the embodiment of the present application may be used to execute the data processing method for a PDC drill bit according to the embodiment of the present application. The data processing device of the PDC drill bit provided by the embodiment of the application is described below.
FIG. 3 is a schematic diagram of a data processing device of a PDC bit according to an embodiment of the present application. As shown in fig. 3, the apparatus includes:
the acquiring unit 10 is configured to perform drilling operation on a target layer by using a PDC drill bit, and acquire drilling motion data acquired by a data sensor on the PDC drill bit during the drilling operation.
The determining unit 30 is configured to determine wear data of the PDC bit after the PDC bit completes drilling operation on the target layer.
And the adjusting unit 50 is configured to adjust the structural characteristics of the PDC drill bit according to the drilling motion data and the wear data to obtain target structural characteristics, and perform drilling operation by using the PDC drill bit with the target structural characteristics.
Optionally, in the data processing apparatus of the PDC drill bit provided in the embodiment of the present application, the adjusting unit 50 includes: the judging module is used for judging whether the PDC drill bit meets a preset condition or not according to the drilling motion data and the abrasion data; the determining module is used for determining the structural feature of the PDC drill bit as a target structural feature under the condition that the PDC drill bit meets the preset condition; and the adjusting module is used for adjusting the structural characteristics of the PDC drill bit based on the drilling motion data and the abrasion data under the condition that the PDC drill bit does not meet the preset condition until the PDC drill bit meets the preset condition.
Optionally, the determining module includes: the establishing sub-module is used for carrying out big data processing on the drilling motion data and establishing an incidence relation between the drilling motion data and the formation parameters of the target layer, the drilling parameters of the target layer and the drilling tool assembly; the judgment submodule is used for analyzing and processing the incidence relation by combining the wear data so as to determine whether the PDC drill bit meets a preset condition;
optionally, the adjusting module includes: and the adjusting submodule is used for adjusting the characteristic parameters of the PDC drill bit based on the analysis result, wherein the analysis result is obtained by analyzing the correlation based on the wear data.
Optionally, the apparatus further comprises: an obtaining subunit, configured to obtain specified characteristic parameters of a target layer before performing a drilling operation on the target layer using a PDC drill bit, where the specified characteristic parameters include at least any one of: data of a drillability profile of at least a portion of a wellbore section of the target formation, wear data of a historical dull bit of the target formation, and a well condition requirement of the target formation; a generating subunit, configured to determine, based on the specified characteristic parameters of the target layer, structural characteristics of the PDC drill bit, so as to generate the PDC drill bit with the structural characteristics, and then perform a drilling operation on the target layer, where the structural characteristics at least include any one of: the drill bit mainly comprises a cutting structure, a crown shape type, a hydraulic structure, a gauge structure, a detection system and a sealing parameter.
According to the data processing device of the PDC drill bit, the PDC drill bit is used for carrying out drilling operation on a target layer through the acquisition unit 10, and drilling motion data acquired by the data sensor on the PDC drill bit in the drilling operation process are acquired; the determining unit 30 determines the wear data of the PDC bit after the PDC bit completes drilling operation on the target layer; the adjusting unit 50 adjusts the structural characteristics of the PDC drill bit according to the drilling motion data and the wear data to obtain target structural characteristics, and performs drilling operation by using the PDC drill bit with the target structural characteristics to implement a link of field application of the PDC drill bit, and establishes a relationship between drill bit dynamics and actual drilling parameters based on obtaining digital parameters of the actual motion state of the PDC drill bit in the well, thereby scientifically and pertinently improving the technical effect of the optimal design of the PDC drill bit.
The data processing device of the PDC drill bit comprises a processor and a memory, wherein the acquiring unit 10, the determining unit 30, the adjusting unit 50 and the like are stored in the memory as program units, and the program units stored in the memory are executed by the processor to realize corresponding functions.
The processor comprises a kernel, and the kernel calls the corresponding program unit from the memory. The core can be set to be one or more than one, the link is applied to the PDC drill bit on site by adjusting the parameters of the core, the relationship between the drill bit dynamics and the actual drilling parameters is established on the basis of obtaining the digital parameters of the real motion state of the PDC drill bit under the well, and then the optimization design of the PDC drill bit is scientifically and pertinently completed.
Embodiments of the present invention provide a storage medium having a program stored thereon, which when executed by a processor, implements a data processing method for the PDC bit.
Embodiments of the present invention provide a processor for running a program, wherein the program when running performs a method of data processing for the PDC bit.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.