CN112031755A - Fracturing monitoring device, method and system, electronic equipment and storage medium - Google Patents
Fracturing monitoring device, method and system, electronic equipment and storage medium Download PDFInfo
- Publication number
- CN112031755A CN112031755A CN202010910368.7A CN202010910368A CN112031755A CN 112031755 A CN112031755 A CN 112031755A CN 202010910368 A CN202010910368 A CN 202010910368A CN 112031755 A CN112031755 A CN 112031755A
- Authority
- CN
- China
- Prior art keywords
- data
- component
- vibration
- detector
- fracture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 61
- 238000012806 monitoring device Methods 0.000 title claims abstract description 20
- 238000012544 monitoring process Methods 0.000 claims abstract description 107
- 239000011159 matrix material Substances 0.000 claims abstract description 19
- 238000004590 computer program Methods 0.000 claims description 8
- 230000035939 shock Effects 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 4
- 239000003245 coal Substances 0.000 abstract description 30
- 238000011161 development Methods 0.000 abstract description 25
- 230000000694 effects Effects 0.000 abstract description 14
- 238000005516 engineering process Methods 0.000 abstract description 8
- 238000005065 mining Methods 0.000 abstract description 5
- 208000010392 Bone Fractures Diseases 0.000 description 53
- 206010017076 Fracture Diseases 0.000 description 53
- 238000010586 diagram Methods 0.000 description 12
- 238000010276 construction Methods 0.000 description 11
- 238000011160 research Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 6
- 230000002349 favourable effect Effects 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000009933 burial Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012067 mathematical method Methods 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/006—Production of coal-bed methane
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/18—Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements
- G01V1/181—Geophones
- G01V1/184—Multi-component geophones
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. analysis, for interpretation, for correction
- G01V1/288—Event detection in seismic signals, e.g. microseismics
Abstract
The embodiment of the invention provides a fracturing monitoring device, a method and a system, electronic equipment and a storage medium, wherein the fracturing monitoring device comprises: a plurality of single component detectors and at least one three component detector; the plurality of single-component detectors and the at least one three-component detector are arranged on the ground to be detected and form a detector array; the plurality of single-component detectors are arranged in a matrix form; the three-component detectors are arranged in a matrix formed by the single-component detectors at fixed intervals and replace the single-component detectors at corresponding positions. The quality of ground monitoring data acquisition during fracture monitoring can be effectively improved, and the vertical positioning precision is greatly improved, so that a proper coal bed gas development scheme can be conveniently formulated, the mining effect is improved, and the micro-seismic monitoring technology can better serve coal bed gas development.
Description
Technical Field
The invention relates to the technical field of seismic exploration, in particular to a fracturing monitoring device, a fracturing monitoring method, a fracturing monitoring system, electronic equipment and a storage medium.
Background
The development of coal bed gas ground development in China is over 20 years, and the development stage is already stepped from the exploration and selection area evaluation stage to the industrial development stage. Hydraulic fracturing plays an important role in the coal bed gas industrialization process. However, the coal seam is a pore-fracture dual medium system, the fracture develops, the face cutting and the end cutting are criss-cross, and the coal seam has special mechanical properties of small elastic modulus, large Poisson ratio, low compressive strength and the like, so that the coal seam fracture has complex shapes, different shapes and larger difference of fracture transformation effects.
In the prior art, considering that the monitoring of the coal bed gas fracturing microseisms is influenced by the monitoring of the oil gas fracturing microseisms, the method for monitoring the fracturing in the well is originally adopted, the method is mature in technology, but the cost is high, and the resolution effect is general. And a method for monitoring the ground microseisms by using mine earthquake monitoring equipment is also provided, and the principle and the feasibility of the method are controversial.
Ground monitoring is a means which is gradually popularized in recent years, a detector array is arranged on the ground surface, and the horizontal resolution is better for microseismic with the depth not more than 2000m in the array range, although the vertical positioning accuracy is reduced along with the increase of the depth. However, the method is simple and convenient in ground monitoring construction and is a feasible method for monitoring the coal bed gas fracture, so that the method is widely concerned and used by researchers at present. Therefore, it is very necessary to develop and develop a three-dimensional high-density matrix type coal bed gas well fracturing microseismic monitoring scheme. And the design of the monitoring scheme can be optimized to greatly improve the vertical positioning precision
Therefore, how to provide a fracturing monitoring device, method, system, electronic equipment and storage medium, the ground monitoring scheme among the prior art after optimizing improves the quality of ground monitoring data collection, improves vertical positioning accuracy by a wide margin to in the development scheme of suitable coal bed gas of making, improve the exploitation effect, make the slight shock monitoring technique better serve coal bed gas development, become the problem that awaits solution urgently.
Disclosure of Invention
In order to overcome the defects in the prior art, embodiments of the present invention provide a fracture monitoring device, a fracture monitoring method, a fracture monitoring system, an electronic device, and a storage medium.
In a first aspect, an embodiment of the present invention provides a fracture monitoring device, including:
a plurality of single component detectors and at least one three component detector;
the plurality of single-component detectors and the at least one three-component detector are arranged on the ground to be detected and form a detector array;
the plurality of single-component detectors are arranged in a matrix form;
the three-component detectors are arranged in a matrix formed by the single-component detectors at fixed intervals and replace the single-component detectors at corresponding positions.
Optionally, in the fracture monitoring device,
the edge of the detector array and a vertical line of the ground along the horizontal well direction form a detector monitoring angle;
the detector monitoring angle is greater than 30 degrees.
In a second aspect, an embodiment of the present invention provides a fracture monitoring method implemented based on the above fracture monitoring apparatus, including:
obtaining first data by the three-component detector; the first data comprises first longitudinal wave data and first transverse wave data;
obtaining second data by the single component detector; the second data is second longitudinal wave data;
determining the position of the vibration according to the first data and the second data;
and combining the positions where the vibration occurs to obtain crack state information.
Optionally, in the fracture monitoring method,
the determining the position of the vibration according to the first data and the second data specifically comprises:
determining the position of the vibration according to the first data, the second data and a speed model;
the velocity model is used for representing the corresponding relation between the depth and the velocity of the stratum.
Optionally, in the fracture monitoring method,
before the determining the location of the occurrence of the shock according to the first data, the second data and the velocity model, the method further comprises:
acquiring a perforation vibration signal and perforation position information;
and correcting the initial velocity model according to the first data, the perforation vibration signal and the perforation position information to obtain a corrected velocity model.
Optionally, in the fracture monitoring method,
determining a location of the occurrence of the shock according to the first data, the second data, and the velocity model specifically includes:
acquiring the vibration event time according to the first data;
and determining the position of the vibration according to the second data corresponding to the vibration event time and the corrected speed model.
Optionally, in the fracture monitoring method,
the combination of the positions where the vibration occurs to obtain crack state information specifically includes:
acquiring a time sequence of a plurality of vibration occurrence positions;
and sequentially connecting the positions where the vibration occurs according to the time sequence to obtain crack state information.
In a third aspect, an embodiment of the present invention provides a fracture monitoring system implemented based on the above fracture monitoring apparatus, including:
the first acquisition module is used for acquiring first data through the three-component detector; the first data comprises first longitudinal wave data and first transverse wave data;
the second acquisition module is used for acquiring second data through the single-component detector; the second data is second longitudinal wave data;
the vibration positioning module is used for determining the position where vibration occurs according to the first data and the second data;
and the comprehensive processing module is used for combining the positions where the vibration occurs to obtain the crack state information.
In a fourth aspect, an embodiment of the present invention provides an electronic device, including a memory and a processor, where the processor and the memory complete communication with each other through a bus; the memory stores program instructions executable by the processor, which when invoked by the processor are capable of performing the various steps of the fracture monitoring method described above.
In a fifth aspect, embodiments of the present invention provide a non-transitory computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the steps of the fracture monitoring method as described above.
The embodiment of the invention provides a fracturing monitoring device, a fracturing monitoring method, a fracturing monitoring system, electronic equipment and a storage medium, wherein a matrix detector array consisting of a plurality of single-component detectors and at least one three-component detector is arranged on the ground to be detected, so that the quality of ground monitoring data acquisition during fracturing monitoring can be effectively improved, the vertical positioning precision is greatly improved, a proper coal bed gas development scheme can be conveniently formulated, the mining effect is improved, and the microseismic monitoring technology can better serve coal bed gas development.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a fracture monitoring device according to an embodiment of the present invention;
FIG. 2 is a flow chart of a fracture monitoring method provided by an embodiment of the invention;
FIG. 3 is a schematic diagram of a velocity model provided by an embodiment of the present invention;
FIG. 4 is a schematic time-sequence diagram of a three-component detector according to an embodiment of the present invention;
FIG. 5 is a schematic time-series diagram of a single component detector according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a fracture monitoring system according to an embodiment of the present invention;
fig. 7 is a schematic physical structure diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.
Fig. 1 is a schematic structural diagram of a fracture monitoring device according to an embodiment of the present invention, and as shown in fig. 1, the fracture monitoring device includes:
a plurality of single component detectors and at least one three component detector;
the plurality of single-component detectors and the at least one three-component detector are arranged on the ground to be detected and form a detector array;
the plurality of single-component detectors are arranged in a matrix form;
the three-component detectors are arranged in a matrix formed by the single-component detectors at fixed intervals and replace the single-component detectors at corresponding positions.
Specifically, the ground to be measured refers to the ground around a horizontal well, the horizontal well refers to a special well with the maximum inclination angle reaching or approaching 90 degrees (generally not less than 86 degrees), and a horizontal well section with a certain length is maintained in a target layer, so that the special well is mainly used for oil exploitation.
And arranging a detector array on the ground to be detected of the corresponding horizontal well, wherein the detector array consists of a plurality of single-component detectors and at least one three-component detector, the plurality of single-component detectors are arranged in a matrix form, and the three-component detectors are arranged in the matrix formed by the single-component detectors at fixed intervals and replace the single-component detectors at corresponding positions.
It should be noted that, in the technical solution provided in the embodiment of the present invention, considering that the cost of the detectors is high, and the vibration is disturbed and continuously attenuated by the noise in the propagation process, and considering the requirements of economy and detection accuracy, the distance between the arranged detectors is generally set to be about 1/15 of the burial depth of the fracture position. For example: when the buried depth of the fracturing position is less than 500m, the distance between the arranged detectors is not more than 40m, when the buried depth of the fracturing position is more than or equal to 500m and less than 800m, the distance between the arranged detectors is more than 40m and not more than 60m, when the buried depth of the fracturing position is more than or equal to 800m and less than 1000m, the distance between the arranged detectors is more than 60m and not more than 80m, when the buried depth of the fracturing position is more than or equal to 1000m and less than 1500m, the distance between the arranged detectors is more than 80m and not more than 100m, and when the buried depth of the fracturing position is more than or equal to 1500m and less than 2000m, the distance between the arranged detectors is more than 100m and not more than 120 m. And the fracturing position is a position for fracturing the horizontal section of the horizontal well. And the burial depth of the fracturing position is the vertical distance between the fracturing position in the horizontal section of the horizontal well and the ground.
Furthermore, in addition to the data obtained according to the above experience basis, the arrangement spacing between the detectors can be reasonably selected and adjusted according to the actual surface conditions and shallow surface layer and deep layer seismic geological conditions of different survey sites and the performance of selected equipment, and the specific number of the three-component detectors and the single-component detectors is not limited so as to meet the requirements of improving the seismic relevance ratio and basically mastering the fracture state information, which is not limited in this embodiment.
Further, when the detector array is constructed, the three-component detectors are expensive, high in embedding requirement and lost in the use process, and the number of the three-component detectors is set too much to be beneficial to calculation of subsequent crack state information, so that in order to meet both economic and technical requirements, when the three-component detectors are generally used for replacing single-component detectors at corresponding positions in the actual use process, the detector array is constructed according to the principle that the distance between the three-component detectors is set to be 5 times of the distance between the single-component detectors. In addition, the relationship between the distances between the single-component detectors and the distances between the three-component detectors may be adjusted according to actual situations, which is not limited in the embodiments of the present invention.
The embodiment of the invention provides a fracturing monitoring device, which is characterized in that a matrix detector array consisting of a plurality of single-component detectors and at least one three-component detector is arranged on the ground to be detected, so that the quality of ground monitoring and data acquisition during fracturing monitoring can be effectively improved, the vertical positioning precision is greatly improved, a proper coal bed gas development scheme can be conveniently formulated, the mining effect is improved, and the microseismic monitoring technology can better serve for coal bed gas development.
Based on the above embodiments, optionally, in the fracture monitoring device,
the edge of the detector array and a vertical line of the ground along the horizontal well direction form a detector monitoring angle;
the detector monitoring angle is greater than 30 degrees.
Specifically, in the use process of the actual detector array, because the three-component detector not only acquires longitudinal wave data but also acquires transverse wave data, when the requirement that the monitoring angle of the detector is greater than 30 degrees is met, the separation of longitudinal and transverse waves is facilitated, the subsequent calculation according to the longitudinal and transverse wave data is facilitated, and the positioning of the vibration position is more accurate.
It should be noted that in the actual monitoring process, the detector array may be set in the monitoring range of the burial depth of the fracturing position greater than or equal to 1/3 along the extension of the horizontal well direction, or set in the monitoring range of the burial depth of the fracturing position 1 on each extension of two sides of the vertical horizontal well direction. The specific monitoring range can be adjusted according to actual conditions (such as the position of a surface reservoir, the trend of underground water, ground obstacles and the like), and the condition that the monitoring angle of the detector is greater than 30 degrees is only required to be met, and the rest of the arrangement is not limited by the embodiment.
The embodiment of the invention provides a fracturing monitoring device, which is characterized in that a matrix wave detector array consisting of a plurality of single-component wave detectors and at least one three-component wave detector is arranged on the ground to be detected, the wave detector array distributed in a ground high-density matrix mode is adopted, the single-component wave detectors and the three-component wave detectors are organically combined, the data acquisition and the micro-seismic time acquisition are facilitated, the quality of ground monitoring acquisition data during the fracturing monitoring can be effectively improved, the vertical positioning precision is greatly improved, a proper coal bed gas development scheme can be conveniently formulated, the mining effect is improved, the micro-seismic monitoring technology can better serve the coal bed gas development, the ground micro-seismic monitoring scheme technical research is carried out on the staged fracturing effect of a horizontal well in the coal bed gas development, and the purpose of accurately and quantitatively describing the spatial distribution of artificial seams after large-scale fracturing is achieved.
An embodiment of the present invention provides a fracture monitoring method implemented based on the above fracture monitoring apparatus, and fig. 2 is a flowchart of the fracture monitoring method provided in the embodiment of the present invention, and as shown in fig. 2, the fracture monitoring method includes:
step S1, obtaining first data through the three-component detector; the first data comprises first longitudinal wave data and first transverse wave data;
step S2, obtaining second data through the single component detector; the second data is second longitudinal wave data;
step S3, determining the position of the vibration according to the first data and the second data;
and step S4, combining the vibration generating positions to obtain crack state information.
Specifically, in step S1, data information of three-component detectors in the detector array is collected to obtain first data, where the monitoring system includes a plurality of three-component and single-component detectors, and when a fracture is generated in the fracture and a vibration signal reaches a detection point, the three-component detectors may collect longitudinal and transverse wave vibrations, and the first data includes first longitudinal wave data and first transverse wave data.
In step S2, data information of the single component detectors in the detector array is collected to obtain second data, which is second longitudinal wave data because the single component detectors record longitudinal wave vibrations.
It should be noted that the three-component detector and the single-component detector need to use the same time interval and recording duration for synchronous data acquisition. As an example, the sampling interval may be set to 4 milliseconds and the recording duration set from 5 days before fracturing is performed to 5 days after fracturing completion. The further sampling interval size and the recording duration can be adjusted according to the fracturing construction time and the actual construction requirements, which is not limited in this embodiment.
In step S3, it is determined that a vibration event exists according to the collected first data of the three-component detector and the collected second data of the single-component detector, and the position where the vibration occurs is further determined.
In step S4, the positions where the vibrations acquired in step S3 occur are combined to obtain crack state information.
The embodiment of the invention provides a fracturing monitoring method, introduces the idea of active source three-dimensional seismic exploration, and provides a fracturing microseismic monitoring scheme of a passive source three-dimensional high-density matrix type coal bed gas well, adopts a detector array distributed in a ground high-density matrix mode, utilizes a detection mode of organically combining a single-component detector and a three-component detector to multiply the obtained data quantity, is favorable for carrying out data attribute analysis and obtaining more useful information, improves the monitoring rate, simultaneously reduces the construction cost and the construction difficulty as much as possible, is favorable for data acquisition and microseismic time acquisition, can effectively improve the quality of ground monitoring data acquisition during fracturing monitoring, greatly improves the vertical positioning precision, is convenient for formulating a proper coal bed gas development scheme and improving the mining effect, and enables the microseismic monitoring technology to better serve coal bed gas development, the technical research of the ground micro-seismic monitoring scheme is carried out on the staged fracturing effect of the horizontal well in the coal bed methane development, and the purpose of accurately and quantitatively describing the spatial distribution of artificial cracks after large-scale fracturing is achieved.
Based on the above embodiments, optionally, in the fracture monitoring method,
the determining the position of the vibration according to the first data and the second data specifically comprises:
determining the position of the vibration according to the first data, the second data and a speed model;
the velocity model is used for representing the corresponding relation between the depth and the velocity of the stratum.
Specifically, the velocity model represents the corresponding relation between the depth and the velocity of the stratum, the velocity model is a layer velocity model obtained in advance in the three-dimensional seismic exploration, and the layer velocity model is generally divided into 10 layers of velocities from the earth surface to the underground in consideration of the requirement of the technical scheme on precision in the fracturing monitoring process. In addition, before the actual application, other methods such as modeling can be used to obtain the velocity model according to the actual geological characteristics, which is not limited in this embodiment.
Fig. 3 is a schematic diagram of a velocity model according to an embodiment of the present invention, and as shown in fig. 3, the abscissa represents velocity in m/s, and the ordinate represents time in ms, taking the velocity model in huainan as an example, the velocity model is divided into 10 layers of velocities from the surface to the subsurface according to the characteristic that the velocities are different due to geological differences.
In three-dimensional seismic exploration, time-depth conversion is required according to data information of borehole data in a region, that is, time is converted into depth, that is, the ordinate of fig. 3 also represents the distance from the earth surface, and the unit is m.
Further, in order to obtain a more accurate velocity model, the initial velocity model may be corrected, the position of the occurrence of the vibration event is determined according to the first longitudinal wave data in the first data, and the initial velocity model is corrected according to the difference between the position and the determined position, so as to obtain a corrected velocity model. It should be noted that the determined position for correction is set by a person who creates a shock to generate data for use in correcting the initial velocity model.
It should be noted that, in the embodiment of the present invention, the method for modifying the initial velocity model according to the first data may select an appropriate mathematical method according to actual situations, and the present embodiment does not limit this method since there are many selectable methods.
And determining the position of the vibration according to the first data, the second data and the corrected speed model.
It should be noted that the first transverse wave data in the first data is used for layered velocity imaging, so that the technical scheme provided by the embodiment of the invention can give consideration to both the microseism event pickup and the micro-motion imaging, is favorable for developing velocity imaging research, and is favorable for simplifying research and analysis time in a layered manner.
The embodiment of the invention provides a fracturing monitoring method, which adopts a detector array distributed in a ground high-density matrix mode, utilizes a detection mode of organically combining a single-component detector and a three-component detector, improves the monitoring rate, simultaneously reduces the construction cost and the construction difficulty as much as possible, is favorable for data acquisition and microseism time acquisition, can effectively improve the quality of ground monitoring acquired data during fracturing monitoring, and greatly improves the vertical positioning precision, so that a proper coal bed gas development scheme is formulated, the exploitation effect is improved, the microseism monitoring technology is better served for coal bed gas development, the ground microseism monitoring scheme technical research is carried out on the staged fracturing effect of a horizontal well in the coal bed gas development, and the aim of accurately and quantitatively describing the spatial distribution of artificial cracks after large fracturing is achieved.
Based on the above embodiments, optionally, in the fracture monitoring method,
before the determining the location of the occurrence of the shock according to the first data, the second data and the velocity model, the method further comprises:
acquiring a perforation vibration signal and perforation position information;
and correcting the initial velocity model according to the first data, the perforation vibration signal and the perforation position information to obtain a corrected velocity model.
Specifically, perforation is an operation that a special energy-gathering material enters a preset position of a borehole to perform explosion perforation to enable fluid in an underground stratum to enter the perforation, and is generally applied to oil-gas fields and coal fields and sometimes applied to water source exploitation.
The correction of the velocity model initially used by the perforation aid is used in embodiments of the present invention. And acquiring a perforation vibration signal and perforation position information, and correcting an initial velocity model according to the first data, the perforation vibration signal and the perforation position information to obtain a corrected velocity model.
According to the vibration event information picked up by the first data, perforation position information can be calculated according to the initial speed model, and because the position of the perforation is known, the initial speed model can be further calculated and corrected according to the deviation between the real position of the perforation and the calculated position of the perforation, so that a corrected speed model which is more accurate and reflects the change of the underground speed is obtained. In the follow-up fracturing monitoring process, the speed model can meet the actual requirement, and an accurate monitoring result is obtained.
Based on the above embodiments, optionally, in the fracture monitoring method,
determining a location of the occurrence of the shock according to the first data, the second data, and the velocity model specifically includes:
acquiring the vibration event time according to the first data;
and determining the position of the vibration according to the second data corresponding to the vibration event time and the corrected speed model.
Specifically, fig. 4 is a schematic diagram of time-sequence numbers of three-component detectors according to an embodiment of the present invention, and fig. 5 is a schematic diagram of time-sequence numbers of single-component detectors according to an embodiment of the present invention, as shown in fig. 4 and fig. 5.
In fig. 4 and 5, the abscissa represents the monitoring time in s, and the ordinate represents the serial numbers of the corresponding three-component detector and the single-component detector, and it should be noted that the serial numbers of the detectors are set artificially according to the positions of the detectors.
When the crack vibrates, the three-component detector and the single-component detector can obtain vibration signals. And acquiring the vibration event time according to the first data of the three-component detector.
And constructing an over-determined equation set to solve according to the second data corresponding to the vibration event time and the corrected speed model, and accurately positioning the position where the vibration occurs.
It should be noted that, for positioning the position where the vibration occurs, besides constructing an over-determined equation set for solving, other feasible calculation methods such as constructing a mathematical model may also be used, and this embodiment does not limit this.
On the basis of the embodiment, the embodiment of the invention uses the data information of the vibration events of the three-component detector and the single-component detector at the same time, and uses the corrected speed model to accurately position the vibration occurrence position, thereby being beneficial to simplifying research and analysis time hierarchically.
Based on the above embodiments, optionally, in the fracture monitoring method,
the combination of the positions where the vibration occurs to obtain crack state information specifically includes:
acquiring a time sequence of a plurality of vibration occurrence positions;
and sequentially connecting the positions where the vibration occurs according to the time sequence to obtain crack state information.
Specifically, the positions of the vibration generated by calculation are sequentially connected according to a time sequence, the time sequence relation can effectively reflect the distance relation between the position of the vibration and the earth surface, and after the positions of the vibration are sequentially connected, a complete crack can be obtained, so that the state information of the crack can be known.
Furthermore, the method is continuously used for monitoring the fracture, whether the fracture is expanded and extended can be judged according to the fracture state information acquired at different time, and the fracture development condition in the period of time is determined.
An embodiment of the present invention provides a fracture monitoring system implemented based on the above fracture monitoring apparatus, and fig. 6 is a schematic structural diagram of the fracture monitoring system provided in an embodiment of the present invention, and as shown in fig. 6, the fracture monitoring system includes:
a first obtaining module 610, configured to obtain first data through the three-component detector; the first data comprises first longitudinal wave data and first transverse wave data;
a second obtaining module 620, configured to obtain second data through the single component detector; the second data is second longitudinal wave data;
a vibration positioning module 630, configured to determine a position where vibration occurs according to the first data and the second data;
and the comprehensive processing module 640 is used for combining the positions where the vibration occurs to obtain the crack state information.
Specifically, the first obtaining module 610 is configured to collect data information of three-component detectors in the detector array to obtain first data, where the monitoring system includes a plurality of three-component detectors and a single-component detector, and when a fracture is generated in a fracture and a vibration signal reaches a detection point, the three-component detectors may collect longitudinal and transverse wave vibrations, and the first data includes first longitudinal wave data and first transverse wave data.
And the second obtaining module 620 is configured to collect data information of the single component detectors in the detector array to obtain second data, where the second data is second longitudinal wave data because the single component detectors record longitudinal wave vibration.
It should be noted that the three-component detector and the single-component detector need to use the same time interval and recording duration for synchronous data acquisition. As an example, the sampling interval may be set to 4 milliseconds and the recording duration set from 5 days before fracturing is performed to 5 days after fracturing completion. The further sampling interval size and the recording duration can be adjusted according to the fracturing construction time and the actual construction requirements, which is not limited in this embodiment.
And the vibration positioning module 630 is configured to determine that a vibration event exists according to the collected first data of the three-component detector and the collected second data of the single-component detector, and further determine a position where the vibration occurs.
And the comprehensive processing module 640 is used for combining the acquired vibration occurrence positions to obtain the crack state information.
The embodiment of the invention provides a fracturing monitoring system, which adopts a detector array arranged in a ground high-density matrix mode, utilizes a detection mode of organically combining a single-component detector and a three-component detector, improves the monitoring rate, simultaneously reduces the construction cost and the construction difficulty as much as possible, is favorable for data acquisition and microseism time acquisition, can effectively improve the quality of ground monitoring acquired data during fracturing monitoring, and greatly improves the vertical positioning precision, so that a proper coal bed gas development scheme is formulated, the exploitation effect is improved, the microseism monitoring technology is better served for coal bed gas development, the ground microseism monitoring scheme technical research is carried out on the staged fracturing effect of a horizontal well in the coal bed gas development, and the aim of accurately and quantitatively describing the spatial distribution of artificial cracks after large fracturing is achieved.
It should be noted that, the fracture monitoring system provided in the embodiment of the present invention is used for executing the above-mentioned fracture monitoring method, and a specific implementation manner thereof is consistent with a method implementation manner, and is not described herein again.
Fig. 7 is a schematic entity structure diagram of an electronic device according to an embodiment of the present invention, and as shown in fig. 7, the electronic device may include: a processor (processor)710, a communication interface (communication interface)720, a memory (memory)730 and a communication bus (bus)740, wherein the processor 710, the communication interface 720 and the memory 730 communicate with each other via the communication bus 740. The processor 710 may call logic instructions in the memory 730 to perform the fracture monitoring method described above, including: obtaining first data by the three-component detector; the first data comprises first longitudinal wave data and first transverse wave data; obtaining second data by the single component detector; the second data is second longitudinal wave data; determining the position of the vibration according to the first data and the second data; and combining the positions where the vibration occurs to obtain crack state information.
In addition, the logic instructions in the memory 730 can be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. 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 removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and the like.
In another aspect, embodiments of the present invention also provide a computer program product, where the computer program product includes a computer program stored on a non-transitory computer-readable storage medium, where the computer program includes program instructions, and when the program instructions are executed by a computer, the computer can execute the fracture monitoring method provided by the above-mentioned method embodiments, including: obtaining first data by the three-component detector; the first data comprises first longitudinal wave data and first transverse wave data; obtaining second data by the single component detector; the second data is second longitudinal wave data; determining the position of the vibration according to the first data and the second data; and combining the positions where the vibration occurs to obtain crack state information.
In yet another aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented by a processor to execute the method for fracture monitoring provided in the foregoing embodiments, and the method includes: obtaining first data by the three-component detector; the first data comprises first longitudinal wave data and first transverse wave data; obtaining second data by the single component detector; the second data is second longitudinal wave data; determining the position of the vibration according to the first data and the second data; and combining the positions where the vibration occurs to obtain crack state information.
The above-described embodiments of the apparatus are merely illustrative, and 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 network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The fracture monitoring device of claim 1, comprising:
a plurality of single component detectors and at least one three component detector;
the plurality of single-component detectors and the at least one three-component detector are arranged on the ground to be detected and form a detector array;
the plurality of single-component detectors are arranged in a matrix form;
the three-component detectors are arranged in a matrix formed by the single-component detectors at fixed intervals and replace the single-component detectors at corresponding positions.
2. The fracture monitoring device of claim 1,
the edge of the detector array and a vertical line of the ground along the horizontal well direction form a detector monitoring angle;
the detector monitoring angle is greater than 30 degrees.
3. A fracture monitoring method implemented by the fracture monitoring device according to claim 1 or 2, comprising:
obtaining first data by the three-component detector; the first data comprises first longitudinal wave data and first transverse wave data;
obtaining second data by the single component detector; the second data is second longitudinal wave data;
determining the position of the vibration according to the first data and the second data;
and combining the positions where the vibration occurs to obtain crack state information.
4. The fracture monitoring method of claim 3,
the determining the position of the vibration according to the first data and the second data specifically comprises:
determining the position of the vibration according to the first data, the second data and a speed model;
the velocity model is used for representing the corresponding relation between the depth and the velocity of the stratum.
5. The fracture monitoring method of claim 4,
before the determining the location of the occurrence of the shock according to the first data, the second data and the velocity model, the method further comprises:
acquiring a perforation vibration signal and perforation position information;
and correcting the initial velocity model according to the first data, the perforation vibration signal and the perforation position information to obtain a corrected velocity model.
6. The fracture monitoring method of claim 5,
determining a location of the occurrence of the shock according to the first data, the second data, and the velocity model specifically includes:
acquiring the vibration event time according to the first data;
and determining the position of the vibration according to the second data corresponding to the vibration event time and the corrected speed model.
7. The fracture monitoring method according to any one of claims 3 to 6, wherein the combining the locations where the vibrations occur to obtain fracture status information specifically comprises:
acquiring a time sequence of a plurality of vibration occurrence positions;
and sequentially connecting the positions where the vibration occurs according to the time sequence to obtain crack state information.
8. A fracture monitoring system implemented on the basis of the fracture monitoring device according to claim 1 or 2, comprising:
the first acquisition module is used for acquiring first data through the three-component detector; the first data comprises first longitudinal wave data and first transverse wave data;
the second acquisition module is used for acquiring second data through the single-component detector; the second data is second longitudinal wave data;
the vibration positioning module is used for determining the position where vibration occurs according to the first data and the second data;
and the comprehensive processing module is used for combining the positions where the vibration occurs to obtain the crack state information.
9. An electronic device, comprising a memory and a processor, wherein the processor and the memory communicate with each other via a bus; the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the fracture monitoring method of any of claims 3 to 7.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the fracture monitoring method according to any one of claims 3 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010910368.7A CN112031755B (en) | 2020-09-02 | 2020-09-02 | Fracturing monitoring device, method and system, electronic equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010910368.7A CN112031755B (en) | 2020-09-02 | 2020-09-02 | Fracturing monitoring device, method and system, electronic equipment and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112031755A true CN112031755A (en) | 2020-12-04 |
| CN112031755B CN112031755B (en) | 2024-01-30 |
Family
ID=73591224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010910368.7A Active CN112031755B (en) | 2020-09-02 | 2020-09-02 | Fracturing monitoring device, method and system, electronic equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112031755B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024011769A1 (en) * | 2022-07-13 | 2024-01-18 | 烟台杰瑞石油装备技术有限公司 | Method and apparatus for determining separate layer operation data of fracturing device |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6791901B1 (en) * | 1998-09-16 | 2004-09-14 | Schlumberger Technology Corporation | Seismic detection apparatus and related method |
| CN102680575A (en) * | 2012-05-17 | 2012-09-19 | 上海交通大学 | Impact mapping method and system for complicated rock-soil medium |
| CN104199086A (en) * | 2014-09-24 | 2014-12-10 | 哈尔滨工业大学 | Single-component fiber-optic geophone, three-component fiber-optic microseismic geophone comprising same and three-component fiber-optic microseismic detection array also comprising same |
| CN104215934A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气集团公司 | Method for performing hydraulic-fracturing microseismic monitoring by utilizing uphole geophones |
| CN104428691A (en) * | 2012-07-11 | 2015-03-18 | 普拉德研究及开发股份有限公司 | Fracture monitoring and characterisation |
| CN106873028A (en) * | 2017-01-17 | 2017-06-20 | 克拉玛依市海晟达石油科技有限公司 | A kind of microseism ripple monitoring method and system based on SAGD |
| CN107479098A (en) * | 2017-07-14 | 2017-12-15 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | With well micro-seismic monitoring technique in a kind of hydraulic fracturing process |
| CN107607990A (en) * | 2017-08-07 | 2018-01-19 | 中国石油天然气集团公司 | The direction detection method and device of three-component geophone horizontal component |
| CN108845347A (en) * | 2018-05-02 | 2018-11-20 | 重庆华地工程勘察设计院 | Near-surface combined microseism data monitoring system and method |
| CN109001814A (en) * | 2018-08-07 | 2018-12-14 | 大庆时代宏业石油科技有限公司 | Underground micro-seismic monitoring method |
| CN109188515A (en) * | 2018-10-31 | 2019-01-11 | 中国石油化工股份有限公司 | Micro-seismic monitoring crack focal point position calculating method and system |
| US20190094397A1 (en) * | 2017-09-25 | 2019-03-28 | Real Time Geomechanics, Llc | Surface detection and location of microseismic events and earthquakes without the use of a velocity model |
| CN110095809A (en) * | 2019-06-13 | 2019-08-06 | 中油奥博(成都)科技有限公司 | Optical fiber time-frequency electromagnetism and four component earthquake data acquisition device and method in well |
| CN110426740A (en) * | 2019-08-02 | 2019-11-08 | 中铁第四勘察设计院集团有限公司 | A kind of earthquake noise imaging exploitation method, device and storage medium |
| CN111239798A (en) * | 2020-03-16 | 2020-06-05 | 中油奥博(成都)科技有限公司 | Optical fiber acoustic sensing well-ground seismic data combined acquisition system and well-drive data processing method |
-
2020
- 2020-09-02 CN CN202010910368.7A patent/CN112031755B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6791901B1 (en) * | 1998-09-16 | 2004-09-14 | Schlumberger Technology Corporation | Seismic detection apparatus and related method |
| CN102680575A (en) * | 2012-05-17 | 2012-09-19 | 上海交通大学 | Impact mapping method and system for complicated rock-soil medium |
| CN104428691A (en) * | 2012-07-11 | 2015-03-18 | 普拉德研究及开发股份有限公司 | Fracture monitoring and characterisation |
| CN104215934A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气集团公司 | Method for performing hydraulic-fracturing microseismic monitoring by utilizing uphole geophones |
| CN104199086A (en) * | 2014-09-24 | 2014-12-10 | 哈尔滨工业大学 | Single-component fiber-optic geophone, three-component fiber-optic microseismic geophone comprising same and three-component fiber-optic microseismic detection array also comprising same |
| CN106873028A (en) * | 2017-01-17 | 2017-06-20 | 克拉玛依市海晟达石油科技有限公司 | A kind of microseism ripple monitoring method and system based on SAGD |
| CN107479098A (en) * | 2017-07-14 | 2017-12-15 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | With well micro-seismic monitoring technique in a kind of hydraulic fracturing process |
| CN107607990A (en) * | 2017-08-07 | 2018-01-19 | 中国石油天然气集团公司 | The direction detection method and device of three-component geophone horizontal component |
| US20190094397A1 (en) * | 2017-09-25 | 2019-03-28 | Real Time Geomechanics, Llc | Surface detection and location of microseismic events and earthquakes without the use of a velocity model |
| CN108845347A (en) * | 2018-05-02 | 2018-11-20 | 重庆华地工程勘察设计院 | Near-surface combined microseism data monitoring system and method |
| CN109001814A (en) * | 2018-08-07 | 2018-12-14 | 大庆时代宏业石油科技有限公司 | Underground micro-seismic monitoring method |
| CN109188515A (en) * | 2018-10-31 | 2019-01-11 | 中国石油化工股份有限公司 | Micro-seismic monitoring crack focal point position calculating method and system |
| CN110095809A (en) * | 2019-06-13 | 2019-08-06 | 中油奥博(成都)科技有限公司 | Optical fiber time-frequency electromagnetism and four component earthquake data acquisition device and method in well |
| CN110426740A (en) * | 2019-08-02 | 2019-11-08 | 中铁第四勘察设计院集团有限公司 | A kind of earthquake noise imaging exploitation method, device and storage medium |
| CN111239798A (en) * | 2020-03-16 | 2020-06-05 | 中油奥博(成都)科技有限公司 | Optical fiber acoustic sensing well-ground seismic data combined acquisition system and well-drive data processing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024011769A1 (en) * | 2022-07-13 | 2024-01-18 | 烟台杰瑞石油装备技术有限公司 | Method and apparatus for determining separate layer operation data of fracturing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112031755B (en) | 2024-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2620819C (en) | Method and apparatus for imaging permeability pathways of geologic fluid reservoirs using seismic emission tomography | |
| CN103109207B (en) | For detecting the method for subsurface seismic events in vertical transverse isotropic medium | |
| CN106501848B (en) | Recessive fault advanced geophysical prospecting method in tunneling process | |
| US10345463B2 (en) | Methods and systems for using known source events in seismic data processing | |
| US8867308B2 (en) | System, method and computer program product for stacking seismic noise data to analyze seismic events | |
| CN102089497A (en) | Monitoring of reservoir fluid moving along flow pathways in a producing oil field using passive seismic emissions | |
| CN110687602A (en) | Shallow seismic multi-wave combined exploration method | |
| CN107490808A (en) | A kind of method for building up of high reliability seismic prospecting observation system | |
| CN109459787B (en) | coal mine underground structure imaging method and system based on seismic channel wave full-waveform inversion | |
| CN103913768A (en) | Method and device for modeling superficial layer in earth surface based on seismic wave data | |
| CN104166159B (en) | The fracture morphology disposal route of four-dimensional micro-seismic monitoring and system | |
| CN111751885A (en) | Shale gas volume fracturing micro-seismic monitoring method | |
| CN104749630B (en) | Method for constructing microseism monitoring velocity model | |
| CN102877828A (en) | CT (Computed Tomography) imaging method of three-dimensional multi-well combined well land | |
| CN110515122B (en) | Forward grid search positioning and micro-seismic signal identification method and device | |
| CN113376695B (en) | Full waveform inversion method suitable for complex collapse column of coal seam floor | |
| CN105572725B (en) | A kind of ground micro-seismic monitors station distribution design method | |
| CN110850469A (en) | Imaging method for seismic channel wave depth migration based on kirchhoff product decomposition | |
| CN113189644B (en) | Microseismic source positioning method and system | |
| CN112031755A (en) | Fracturing monitoring device, method and system, electronic equipment and storage medium | |
| CN103630938A (en) | Imaging system and imaging method for well earthquake using hammer head of down-hole hammer as focus | |
| Wang et al. | Cross-related microseismic location based on improved particle swarm optimization and the double-difference location method of jointed coal rock mass | |
| CN206594308U (en) | Three-dimensional tunnel earthquake forward probe system | |
| CN109001811A (en) | The potential seepage channel recognition methods of rock side slope based on micro seismic monitoring | |
| US20240134080A1 (en) | Method and System for Real-Time Calculating a Microseismic Focal Mechanism Based on Deep Learning |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |