CN211402765U - Optical fiber acoustic sensing well-ground seismic data combined mining system - Google Patents
Optical fiber acoustic sensing well-ground seismic data combined mining system Download PDFInfo
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- CN211402765U CN211402765U CN202020320802.1U CN202020320802U CN211402765U CN 211402765 U CN211402765 U CN 211402765U CN 202020320802 U CN202020320802 U CN 202020320802U CN 211402765 U CN211402765 U CN 211402765U
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Abstract
The utility model discloses a well-ground seismic data combined mining system based on distributed optical fiber acoustic sensing, which aims to solve the problems of inconsistent energy, inconsistent frequency spectrum and inconsistent coupling between a seismic source and the ground caused by repeated excitation of each seismic source point when seismic data in a well and the ground are respectively collected in the prior art; the utility model discloses in the well based on distributed optical fiber acoustic wave sensing seismic data acquisition unit in the well and ground seismic data acquisition unit constitute-ground seismic data unites three-dimensional acquisition system, carry out in the well-ground unites three-dimensional exploration and synchronous acquisition ground and well seismic data, realize high density, high benefit, high resolution, low cost well-ground unites three-dimensional seismic exploration technique, carry out oil gas resource exploration and comprehensive evaluation.
Description
Technical Field
The utility model belongs to use geophysical, geophysical exploration technique, seismic exploration field, in particular to well-ground seismic data allies oneself with adopts system and well drive data processing method based on in-well distributed optical fiber sound wave sensing technique.
Background
Seismic waves (Seismic Wave) are vibrations that propagate from a Seismic source to four locations, and refer to elastic waves that radiate from the Seismic source to the surroundings. The wave propagation method can be divided into three types, namely longitudinal waves (P waves), transverse waves (S waves) (both the longitudinal waves and the transverse waves belong to body waves) and surface waves (L waves). When an earthquake occurs, the medium in the earthquake source area is subjected to rapid rupture and movement, and the disturbance forms a wave source. Due to the continuity of the earth's medium, this wave propagates into the earth and everywhere on the surface, forming an elastic wave in the continuous medium. The propagation velocities of seismic waves vary from one propagation medium to another, and are generally related to rock type, confining pressure, rock structure, and other geological factors.
Seismic exploration refers to a geophysical exploration method for deducing the properties and forms of underground rock strata by observing and analyzing the propagation rule of seismic waves generated by artificial earthquake in the underground by utilizing the difference between the elasticity and the density of underground media caused by artificial excitation. Seismic exploration is the most important method in geophysical exploration and is the most effective method for solving the problem of oil and gas exploration. It is an important means for surveying petroleum and natural gas resources before drilling, and is widely applied to the aspects of coal field and engineering geological exploration, regional geological research, crust research and the like.
Seismic exploration is characterized in that the earth crust vibration (such as detonator or explosive explosion, heavy hammer falling or knocking, electric spark or piezoelectric crystal or air gun seismic source excitation in water or a well and controllable seismic source vibration) is caused by a manual method, the vibration information of each receiving point on the ground after explosion is recorded by a precision instrument according to a certain observation mode, and the characteristics of the underground geological structure are deduced by using result data obtained after a series of processing treatment on the original recorded information. The seismic waves are excited artificially on the earth surface, and when the waves propagate underground, the waves are reflected and refracted when encountering rock stratum interfaces with different medium properties, and the waves are received by a detector on the earth surface or in a well. The received seismic signals are related to the seismic source characteristics, the location of the geophone points, and the nature and structure of the subterranean strata through which the seismic waves pass. By processing and interpreting seismic wave recordings, the nature and morphology of the subterranean formation can be inferred.
In the processing and interpretation of seismic data acquired from seismic surveys, it is one of the essential and very important steps to calculate the velocity of various seismic waves propagating in the formation and the elastic or viscoelastic parameters of the subsurface medium (formation or rock formation). If the seismic wave velocity of the subsurface formations and the elastic or viscoelastic parameters of the subsurface medium (formation or rock) cannot be accurately obtained, subsequent processing and interpretation of the seismic data may be very disadvantageous or impossible. Therefore, accurate measurement and calculation of seismic wave velocity of subsurface formations and elastic or viscoelastic parameters of the subsurface medium (formation or rock formation) is one of the primary tasks for seismic data processing interpretation.
The existing ground and well seismic data acquisition system uses a universal moving-coil or digital ground single-component or three-component detector and a moving-coil three-component detector array in a well to perform well-to-ground combined stereo synchronous acquisition of ground and well seismic data. Because the existing moving coil type three-component detector in the well is heavy in weight and high in cost, a logging cable can put 100-grade moving coil type three-component detectors in the well at most once, seismic data in a full well section with the depth of thousands of meters needs to be collected and moved or lifted up to the moving coil type three-component detector array in the well for a plurality of times, and all points of a ground artificially-excited seismic source (explosive or a heavy hammer or an electric spark or an air gun or a piezoelectric crystal or a controllable seismic source) need to be excited once again when the moving coil type three-component detector array in the well is lifted once, so that the cost of the seismic data collected in a well-ground combined three-dimensional mode is extremely high, the repeated excitation of each seismic source point hardly ensures the energy consistency of each excitation, the frequency spectrum consistency, and the coupling of the seismic source and the ground is also completely consistent. For the above well-known reasons, the operation of performing well-ground combined stereo synchronous acquisition of ground and borehole seismic data by using a general moving-coil or digital ground single-component or three-component detector and a moving-coil three-component detector array in a well is difficult to popularize and apply.
The borehole-ground seismic combined three-dimensional exploration technology is used as a novel seismic exploration method formed by combining ground seismic exploration and borehole seismic exploration technologies, the combination of borehole and ground seismic data acquisition is realized, and the purposes of synchronous acquisition and synchronous processing can be achieved, so that the imaging precision of an exploration area is improved, and the signal-to-noise ratio and the resolution of target layer reflection are improved. The method is beneficial to identifying special geologic bodies, finely developing reservoir prediction and evaluation and researching sand bodies and lithologic traps; the method is a novel seismic exploration technology for finely researching the structure of the surrounding stratum beside a well, the change characteristics of a reservoir and an oil layer.
Known techniques exist, for example: united borehole-surface seismic exploration solutions are disclosed in patent application nos. 201611224463.1, 201810499456.5, 201710747770.6, 201410140366.9, 200710141556.2, 201711453533.5, 200810138351.3, 201110436378.2, 200820026051.1, 201010134001.7, 201510673600.9, 201420694552.2, 201811088989.0, 201280044880.1, 201711066824.9, 201511001188.2, 201280061525.5, but still exist: the borehole seismic data of the whole borehole section can be acquired only by moving or lifting the three-component detector array in the borehole for a plurality of times, all artificially-excited seismic sources (explosives, heavy hammers, electric sparks, piezoelectric crystals, air guns or controllable seismic sources) on the ground need to be repeatedly excited every time the three-component detector array in the borehole is lifted once, the repeatedly-excited energy of each seismic source point is inconsistent, the frequency spectrum is inconsistent, and the coupling between the seismic sources and the ground is also not completely consistent, and the subsequent ground seismic data processing and imaging precision can be affected.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model discloses a based on distributed optical fiber sound wave sensing well ground seismic data allies oneself with adopts system and well to drive data processing method, through well-in-ground joint three-dimensional exploration and synchronous acquisition ground and well-in seismic data, realize high density, high benefit, high resolution, low-cost well-in-ground joint three-dimensional seismic exploration technique, carry out oil gas resource exploration and comprehensive evaluation.
The utility model discloses an one of the technical scheme do: based on distributed optical fiber acoustic sensing well ground seismic data allies oneself with adopts system, includes: the system comprises a well 11, an underground distributed optical fiber acoustic wave sensing armored optical cable 12, a ground wired detector 13, an artificial seismic source excitation point 14, a cable 15 and a ground seismic and borehole seismic data acquisition vehicle 16, wherein the underground distributed optical fiber acoustic wave sensing armored optical cable 12, the artificial seismic source excitation point 14, the cable 15 and the ground seismic and borehole seismic data acquisition vehicle 16 are arranged along the whole well section, the ground wired detector 13 is connected with the cable 15, the underground distributed optical fiber acoustic wave sensing armored optical cable 12 and the ground seismic and borehole seismic data acquisition vehicle 16 are arranged along the whole well section and synchronously and simultaneously acquire and record seismic data.
The cable 15 is replaced with an armored optical electrical composite cable.
The ground detector 13 is: the detector comprises one of a wired single-component or three-component moving coil detector, a wired single-component or three-component digital detector, a wired single-component or three-component acceleration detector, a wired single-component or three-component optical fiber detector, a wireless single-component or three-component moving coil detector, a wireless single-component or three-component digital detector, a wireless single-component or three-component acceleration detector and a wireless single-component or three-component optical fiber detector.
The artificial seismic source excitation point 14 is: one of a ground explosive source, a heavy hammer source, an electric spark source, a piezoelectric crystal source, an air gun source and a controllable source.
The second technical scheme adopted by the utility model is: based on distributed optical fiber acoustic sensing well ground seismic data allies oneself with adopts system, includes: the seismic data acquisition system comprises a well drilling 21, a full-well section borehole three-component detector 22, a ground wired detector 23, an artificial seismic source excitation point 24, a cable 25 and a ground seismic and borehole seismic data acquisition vehicle 26, wherein the ground wired detector 23 is connected with the cable 25, the full-well section borehole detector 22 is connected with the ground seismic and borehole seismic data acquisition vehicle 26 through an armored logging cable, and the ground wired detector 23, the full-well section borehole detector 22 and the ground seismic and borehole seismic data acquisition vehicle 26 synchronously and simultaneously acquire and record seismic data.
The utility model adopts the third technical proposal that: based on distributed optical fiber acoustic sensing well ground seismic data allies oneself with adopts system, includes: the seismic data acquisition system comprises a well 31, a distributed optical fiber acoustic wave sensing armored optical cable 32 in the whole well section well, a ground wireless detector 33, an artificial seismic source excitation point 34 and a well seismic data acquisition vehicle 35, wherein the distributed optical fiber acoustic wave sensing armored optical cable 32 in the whole well section well is connected with the well seismic data acquisition vehicle 35, and the ground wireless detector 33, the distributed optical fiber acoustic wave sensing armored optical cable 32 in the whole well section well and the well seismic data acquisition vehicle 35 synchronously and simultaneously acquire and record seismic data.
The utility model adopts the fourth technical proposal that: based on distributed optical fiber acoustic sensing well ground seismic data allies oneself with adopts system, includes: the seismic data acquisition system comprises a well 41, a full-well section borehole three-component detector 42, a ground wireless detector 43, an artificial seismic source excitation point 44 and a borehole seismic data acquisition vehicle 45, wherein the full-well section borehole detector 42 is connected with the borehole seismic data acquisition vehicle 45, and the ground wireless detector 43, the full-well section borehole detector 42 and the borehole seismic data acquisition vehicle 45 synchronously and simultaneously acquire and record seismic data.
The utility model has the advantages that: the utility model discloses utilize and lay wired or wireless node formula single component or three-component wave detector and the subaerial seismic source signal of evenly or unevenly laying on ground to utilize conventional seismic data record instrument and the quick high-efficient low-cost well seismic data of synchronous acquisition ground three-dimensional seismic data of distributed optic fibre sound wave sensing armor optical cable in the edge of distributed optic fibre sound wave sensing armor optical cable in the pit of distributed optic fibre sound wave sensing (DAS) modem system. The utility model discloses can realize in-well-ground joint three-dimensional seismic prospecting of high density, high efficiency, high resolution, low cost. The well seismic data processing result can extract wavelets, identify multiples, obtain the average and interlayer longitudinal wave velocity and transverse wave velocity of the stratum, solve the velocity anisotropy of the longitudinal wave velocity and the transverse wave velocity in different directions, calculate the attenuation coefficient (characteristics) of the longitudinal wave and the transverse wave in the underground medium, then finely and accurately establish a two-dimensional or three-dimensional seismic wave velocity model of the underground medium around the well and a two-dimensional or three-dimensional elastic or viscoelastic parameter model of the underground medium, perform static correction processing, multiple wave removal processing and amplitude recovery processing on three-dimensional ground seismic data, subsequently perform resolution enhancement processing on the three-dimensional ground seismic data, perform anisotropic migration imaging and Q compensation or Q migration imaging on prestack gather data, and perform fine exploration and comprehensive evaluation on oil and gas resources through a comprehensive interpretation technology.
Drawings
Fig. 1 is the seismic data acquisition system schematic diagram corresponding to embodiment 1 of the present invention.
Fig. 2 is a schematic diagram of a seismic data acquisition system corresponding to embodiment 2 of the present invention.
Fig. 3 is a schematic diagram of a seismic data acquisition system corresponding to embodiment 3 of the present invention.
Fig. 4 is a schematic diagram of a seismic data acquisition system corresponding to embodiment 4 of the present invention.
Reference numerals: 11-drilling a well; 12-a distributed optical fiber acoustic wave sensing armored optical cable in the whole well section well; 13-a ground wired single-component or three-component moving-coil type or digital type or acceleration type or optical fiber detector; 14-ground explosive source or heavy hammer source or electric spark source or piezoelectric crystal source or air gun source or controllable source; 15-the detector is connected with a cable or an optical fiber detector is connected with an armored optical cable, and 16-a ground seismic and borehole seismic data acquisition vehicle; 21-drilling a well; 22-three-component moving coil type or digital type or acceleration type or optical fiber detector array in the whole well section well; 23-a ground single-component or three-component moving-coil or digital or acceleration or fiber detector; 24-a ground explosive source or a heavy hammer source or an electric spark source or a piezoelectric crystal source or an air gun source or a controllable source; 25-a detector connecting cable or an optical fiber detector is connected with an armored optical cable, and 26-a ground seismic and borehole seismic data acquisition vehicle; 31-drilling a well; 32-a distributed optical fiber acoustic wave sensing armored optical cable in the whole well section well; 33-ground wireless single-component or three-component moving-coil type or digital type or acceleration type or optical fiber detector; 34-a ground explosive source or a heavy hammer source or an electric spark source or a piezoelectric crystal source or an air gun source or a controllable source; 35-borehole seismic data acquisition vehicle; 41-drilling a well; 42-three-component moving coil type or digital type or acceleration type or optical fiber detector array in the whole well section well; 43-ground wireless single-component or three-component moving-coil type or digital type or acceleration type or optical fiber detector; 44-ground explosive source or heavy hammer source or electric spark source or piezoelectric crystal source or air gun source or controllable source; 45-borehole seismic data acquisition vehicle.
Detailed Description
To facilitate understanding of the technical contents of the present invention by those skilled in the art, the present invention will be further explained with reference to the accompanying drawings.
Example 1
The present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of an in-well distributed optical fiber acoustic wave sensing armored cable and a ground wired seismic data acquisition system to which the present invention is directed. The in-well-ground combined distributed optical fiber acoustic sensing seismic data acquisition system is composed of a well 11 shown in figure 1, a distributed optical fiber acoustic sensing armored optical cable 12 in a full-well section well, a ground wired single-component or three-component moving coil type or digital type or acceleration type or optical fiber detector 13, a ground explosive source or heavy hammer source or electric spark source or piezoelectric crystal source or air gun source or controllable source 14, a detector connecting cable or armored optical cable 15 and a ground seismic and in-well seismic data acquisition vehicle 16. The recording instruments used by the underground distributed optical fiber acoustic wave sensing armored optical cable and the ground single-component or three-component optical fiber geophone 13 are phase-sensitive optical time domain reflectometers (phi-OTDRs) and are arranged in a ground seismic and underground seismic data acquisition vehicle 16.
When the in-well-ground combined three-dimensional seismic data acquisition operation is carried out, firstly, the in-well distributed optical fiber acoustic wave sensing armored optical cable 12 is arranged along the whole well section in the well 11, a wire single-component or three-component moving coil type or digital type or acceleration type or optical fiber wave detector 13 is arranged on the ground according to a pre-designed measuring network, then an explosive source or a heavy hammer source or an electric spark source or a piezoelectric crystal source or an air gun source or a controllable source 14 is arranged at the position of a pre-designed seismic source, and finally, an artificial seismic source excitation point 14 which is pre-designed along the ground is excited point by point and is connected with a cable or an armored cable 15 through a detector 13 which is arranged on a construction site, and a distributed optical fiber acoustic wave sensing armored cable 12 in the well and a ground seismic and in-well seismic data acquisition vehicle 16 are arranged along the whole well section to synchronously acquire and record ground and in-well seismic data simultaneously, so that in-well-ground combined three-dimensional seismic exploration is realized.
The borehole seismic data acquisition system consists of a distributed optical fiber acoustic wave sensing armored optical cable distributed along the whole borehole section or a borehole three-component moving coil type or digital type or acceleration type or optical fiber detector array 12 distributed along the whole borehole section and a ground borehole seismic data acquisition vehicle 16, the ground seismic data acquisition system consists of a wired or wireless node type single-component or three-component moving coil type detector or digital detector or acceleration detector or optical fiber detector 13 and the ground seismic data acquisition vehicle 16, and the operation seismic source 14 of the borehole-ground combined optical fiber seismic data acquisition system can adopt a ground explosive source or a heavy hammer seismic source or an electric spark seismic source or a piezoelectric crystal seismic source or an air gun seismic source or a controllable seismic source.
Example 2
The present invention will be described in detail with reference to the accompanying drawings.
Fig. 2 is a schematic diagram of an in-well three-component geophone array and a surface wireline seismic data acquisition system to which the present invention is directed. The borehole-ground combined optical fiber seismic data acquisition system consists of a borehole 21 shown in figure 2, a three-component moving coil type or digital type or acceleration type or optical fiber detector array 22 in a full-section borehole, a ground wired node type single-component or three-component moving coil type or digital type or acceleration type or optical fiber detector 23, a ground explosive source or heavy hammer source or electric spark source or piezoelectric crystal source or air gun source or controllable source 24, a cable or armored cable 25 and a borehole seismic data acquisition vehicle 26. The recording instruments used by the borehole three-component fiber optic geophone array 22 are all phase sensitive optical time domain reflectometers (Φ -OTDRs) housed in a surface seismic and borehole seismic data acquisition cart 26.
When the in-well-ground combined three-dimensional seismic data acquisition operation is carried out, firstly, an underground three-component moving coil type or digital type or acceleration type or optical fiber detector array 22 is arranged along the whole well section in a well 21, a wire single-component or three-component moving coil type or digital type or acceleration type or optical fiber detector 23 is arranged on the ground according to a pre-designed measuring network, then an explosive source or a heavy hammer source or an electric spark source or a piezoelectric crystal source or an air gun source or a controllable source 24 is arranged at the position of the pre-designed source, and finally the pre-designed artificial source excitation points 24 are excited point by point along the ground and are connected with a cable or an armored cable 25 through a detector 23 arranged on the construction site, the borehole three-component detector array 22 and the borehole seismic data acquisition vehicle 26 to synchronously and simultaneously acquire and record the ground and borehole seismic data, thereby realizing the borehole-ground combined three-dimensional seismic exploration.
Example 3
The present invention will be described in detail with reference to the accompanying drawings.
Fig. 3 is a schematic diagram of a distributed optical fiber acoustic wave sensing armored cable and a ground wireless node seismic data acquisition system in a well to which the present invention is directed. The borehole-ground combined optical fiber seismic data acquisition system consists of a borehole 31 shown in figure 3, a distributed optical fiber acoustic wave sensing armored optical cable 32 in a full-section borehole, a ground wireless node type single-component or three-component moving coil type or digital type or acceleration type or optical fiber detector 33, a ground explosive source or heavy hammer source or electric spark source or piezoelectric crystal source or air gun source or controllable source 34 and a borehole seismic data acquisition vehicle 35. The recording instrument used by the downhole distributed fiber acoustic wave sensing armored cable 32 is a phase sensitive optical time domain reflectometer (Φ -OTDR) and is placed in a ground seismic and borehole seismic data acquisition vehicle 35.
When the in-well-ground combined three-dimensional seismic data acquisition operation is carried out, firstly, the in-well distributed optical fiber acoustic wave sensing armored optical cable 32 is arranged along the whole well section in the well 31, a wireless node type single-component or three-component moving coil type or digital type or acceleration type or optical fiber detector 33 is arranged on the ground according to a pre-designed survey network, then an explosive source or a heavy hammer source or an electric spark source or a piezoelectric crystal source or an air gun source or a controllable source 34 is arranged at the position of a pre-designed seismic source, and finally, a pre-designed artificial seismic source excitation point 34 is excited point by point along the ground, and the ground and borehole seismic data are synchronously and simultaneously acquired and recorded through a wireless node type single-component or three-component detector 33 arranged on a construction site, a distributed optical fiber acoustic wave sensing armored optical cable 32 arranged in a borehole section and a borehole seismic data acquisition vehicle 35, so that borehole-ground combined three-dimensional seismic exploration is realized.
Example 4
The present invention will be described in detail with reference to the accompanying drawings.
Fig. 4 is a schematic diagram of a borehole three-component geophone array and a ground wireless node seismic data acquisition system to which the present invention is directed. The borehole-ground combined distributed optical fiber acoustic sensing seismic data acquisition system consists of a borehole 41, a borehole three-component moving coil type or digital type or acceleration type or optical fiber detector array 42, a ground wireless node single-component or three-component moving coil type or digital type or acceleration type or optical fiber detector 43, a ground explosive source or heavy hammer source or electric spark source or piezoelectric crystal source or air gun source or controllable source 44 and a ground seismic and borehole seismic data acquisition vehicle 45 which are shown in figure 4. The recording instruments used by the borehole three-component fiber optic geophone array 42 and the ground single-component or three-component fiber optic geophones 43 are phase sensitive optical time domain reflectometers (Φ -OTDRs) and are housed in a ground seismic and borehole seismic data acquisition cart 45.
When the in-well-ground combined three-dimensional seismic data acquisition operation is carried out, firstly, an underground three-component moving coil type or digital type or acceleration type or optical fiber detector array 42 is arranged along the whole well section in a well 41, a wireless node type single-component or three-component moving coil type or digital type or acceleration type or optical fiber wave detector 43 is arranged on the ground according to a pre-designed measuring network, then laying an explosive source or a heavy hammer source or an electric spark source or a piezoelectric crystal source or an air gun source or a controllable source 4 at the position of the pre-designed source, finally exciting point by point along the pre-designed artificial source excitation point 44 on the ground, synchronously and simultaneously acquiring and recording ground and borehole seismic data through a wireless node type single-component or three-component detector 43, a borehole three-component detector array 42 and a borehole seismic data acquisition vehicle 45 which are laid on a construction site, and realizing borehole-ground combined three-dimensional seismic exploration.
The recording instrument used by the underground distributed optical fiber acoustic wave sensing armored optical cable or the underground three-component optical fiber detector array in the above 4 embodiments is a phase-sensitive optical time domain reflectometer (Φ -OTDR), and is placed in a ground seismic and borehole seismic data acquisition vehicle.
The ground seismic data acquisition system in the above 4 embodiments may be a two-dimensional or three-dimensional wired or wireless node single-component or three-component moving-coil type or digital type or acceleration type or optical fiber detector arranged on the ground.
The recording instrument used by the ground wired single-component or three-component optical fiber detector is a phase-sensitive optical time domain reflectometer (phi-OTDR) and is placed in a ground seismic and borehole seismic data acquisition vehicle.
The ground seismic source can be an explosive source, a heavy hammer source, an electric spark source, a piezoelectric crystal source, an air gun source or a controllable seismic source.
The distances between the detectors in the ground seismic data acquisition system are equal or unequal, and are several meters to dozens of meters.
The spatial sampling interval of the underground distributed optical fiber acoustic wave sensing armored optical cable is equal to the distance of 0.1-10 m.
The distance between the underground three-component detectors is equal or unequal from several meters to dozens of meters.
It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention, and it is to be understood that the scope of the invention is not limited to such specific statements and embodiments. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (7)
1. Seismic data joint mining system based on distributed optical fiber acoustic sensing well is characterized by comprising: the system comprises a well drilling and a full-well-section well distributed optical fiber acoustic wave sensing armored optical cable, a ground wired or wireless detector, an artificial seismic source excitation point and a well seismic data acquisition vehicle, wherein the full-well-section well distributed optical fiber acoustic wave sensing armored optical cable is connected with the well seismic data acquisition vehicle, and the ground wired or wireless detector and the full-well-section well distributed optical fiber acoustic wave sensing armored optical cable synchronously acquire and record seismic data at the same time.
2. The distributed fiber optic acoustic wave sensing based well-ground seismic data cogeneration system of claim 1, wherein the artificial source excitation points are: one of a ground explosive source, a heavy hammer source, an electric spark source, a piezoelectric crystal source, an air gun source and a controllable source.
3. The distributed fiber optic acoustic wave sensing based uphole seismic data co-production system of claim 2, wherein the distributed fiber optic acoustic wave sensing armored cable in the full-interval downhole is replaced with a full-interval downhole three-component geophone.
4. The system for simultaneous recovery of seismic data from a well and a ground based on distributed fiber optic acoustic wave sensing according to any one of claims 1 to 3, wherein the ground wireless detectors are replaced by ground wired detectors, the borehole seismic data collection vehicle is replaced by a ground seismic and borehole seismic data collection vehicle, and further comprising cables, and the ground wired detectors are connected with the ground seismic and borehole seismic data collection vehicles through cables.
5. The system for jointly acquiring seismic data based on a distributed optical fiber acoustic wave sensing well according to any one of claims 1 to 3, wherein the ground wireless geophones are: one of a wireless single-component moving-coil detector, a wireless single-component digital detector, a wireless single-component acceleration detector and a wireless single-component optical fiber detector.
6. The distributed optical fiber acoustic wave sensing borehole seismic data co-production system according to claim 3, wherein the full-interval borehole geophone is: one of a wired three-component moving-coil detector, a wired three-component digital detector, a wired three-component acceleration detector and a wired three-component optical fiber detector.
7. The system of claim 4, wherein the surface line detectors are: a wired single-component or three-component moving-coil detector, a wired single-component or three-component digital detector, a wired single-component or three-component acceleration detector, and a wired single-component or three-component optical fiber detector.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112130195A (en) * | 2020-10-13 | 2020-12-25 | 中油奥博(成都)科技有限公司 | Time-shifting VSP data acquisition system and method based on distributed optical fiber acoustic sensing |
| CN113640866A (en) * | 2021-09-06 | 2021-11-12 | 中油奥博(成都)科技有限公司 | Optical fiber seismic data acquisition system and information acquisition and conversion method thereof |
| CN113791443A (en) * | 2021-09-13 | 2021-12-14 | 中油奥博(成都)科技有限公司 | Distributed optical fiber seismic data acquisition system and data collection and conversion method thereof |
-
2020
- 2020-03-16 CN CN202020320802.1U patent/CN211402765U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112130195A (en) * | 2020-10-13 | 2020-12-25 | 中油奥博(成都)科技有限公司 | Time-shifting VSP data acquisition system and method based on distributed optical fiber acoustic sensing |
| CN113640866A (en) * | 2021-09-06 | 2021-11-12 | 中油奥博(成都)科技有限公司 | Optical fiber seismic data acquisition system and information acquisition and conversion method thereof |
| CN113791443A (en) * | 2021-09-13 | 2021-12-14 | 中油奥博(成都)科技有限公司 | Distributed optical fiber seismic data acquisition system and data collection and conversion method thereof |
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