CN116856912A - Geological exploration device and method in single horizontal drilling - Google Patents
Geological exploration device and method in single horizontal drilling Download PDFInfo
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- CN116856912A CN116856912A CN202311030352.7A CN202311030352A CN116856912A CN 116856912 A CN116856912 A CN 116856912A CN 202311030352 A CN202311030352 A CN 202311030352A CN 116856912 A CN116856912 A CN 116856912A
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- 238000005553 drilling Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 38
- 210000002445 nipple Anatomy 0.000 claims abstract description 168
- 230000002159 abnormal effect Effects 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 47
- 230000008569 process Effects 0.000 claims description 17
- 238000003860 storage Methods 0.000 claims description 14
- 241000272814 Anser sp. Species 0.000 claims description 12
- 239000002002 slurry Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 244000261422 Lysimachia clethroides Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000001902 propagating effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
- E21B47/017—Protecting measuring instruments
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/09—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes
- E21B47/095—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes by detecting an acoustic anomalies, e.g. using mud-pressure pulses
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- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Acoustics & Sound (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention belongs to the technical field of geological exploration, and particularly relates to a geological exploration device and method in single horizontal drilling. The transmitting nipple on the hole device in the device transmits radio waves and is received by the first receiving nipple and the second receiving nipple, and the hole device is used for lowering and salvaging the hole device. In the method, S1: the device outside the hole lowers the device inside the hole; s2: the transmitting nipple transmits radio waves, and the first receiving nipple and the second receiving nipple receive the radio waves; s3: the out-hole device is used for fishing out the out-hole device, and if the radio wave is reflected to the first receiving nipple and the second receiving nipple, the condition that the radio wave encounters a geological abnormal area is indicated; and comparing and calculating the received actual field intensity and the theoretical field intensity to obtain whether a geological abnormal region exists or not and the position and the range of the geological abnormal region. Therefore, the device and the method are used for lowering the hole device into a single horizontal small-diameter drilling hole, obtaining field intensity data by adopting 'one sending and two receiving', and realizing large-scale geological exploration.
Description
Technical Field
The invention belongs to the technical field of geological exploration, and particularly relates to a geological exploration device and method in single horizontal drilling.
Background
Geological exploration mainly includes engineering drilling and engineering geophysical prospecting. Drilling, i.e., drilling holes in a subterranean formation, to identify and partition the subsurface formation, and to provide a method of exploration in which core samples can be taken along the depth of the hole, and deep geological information can be obtained directly. However, drilling is time-consuming and has the limitation of "one hole" and can only reflect the geology in the borehole.
The geophysical prospecting is divided into ground geophysical prospecting and underground geophysical prospecting (well logging) according to working conditions, and the physical properties to be detected can be divided into methods of electric method, earthquake, sound wave, gravity, magnetic method, radioactivity and the like, and the method is mainly used for dividing stratum, distinguishing lithology, determining the positions and thickness of weak interlayers, cracks and broken zones, determining the positions and thickness of aquifers and the like, and the detection range is wider.
However, most geophysical prospecting is operated on the ground, the measurement accuracy is easily interfered by iron elements, various signals and the like of ground equipment, and accurate measurement results are difficult to obtain. At present, a geophysical prospecting instrument capable of measuring in a horizontal drilling hole is mainly a logging while drilling instrument in the petroleum field, needs to be matched with a drill rod, a drilling tool and the like for use, has a large diameter, is not suitable for small-diameter drilling holes formed by core drilling, and is complex in structure and high in cost. In addition, the existing radio wave penetration meter can also be used in a borehole, a transmitter and a receiver are respectively positioned in two ground boreholes, the transmitter continuously emits radio waves in one borehole, the radio waves are projected into the other borehole through a geological layer between the two boreholes and received by the receiver, and the abnormal geology of a borehole part is estimated by utilizing energy attenuation. However, the method requires 2 drill holes, and can not realize the geological detection function under the single-drill hole condition.
Disclosure of Invention
First, the technical problem to be solved
In order to solve the problems in the prior art, the invention provides a geological exploration device and a geological exploration method in a single horizontal drilling hole, so that the technical problem of interference of iron elements, various signals and the like of surface equipment on measurement results is solved.
(II) technical scheme
In order to achieve the above purpose, the main technical scheme adopted by the invention comprises the following steps:
in one aspect, the invention provides a single horizontal borehole internal geological exploration device, comprising an in-hole device and an out-hole device, wherein the in-hole device is connected with the out-hole device, and the out-hole device is used for lowering the in-hole device into a borehole or fishing out of the borehole; the hole device comprises a first receiving nipple, a second receiving nipple and a transmitting nipple, wherein the first receiving nipple, the second receiving nipple and the transmitting nipple are connected in a straight line through a connecting nipple; the transmitting nipple transmits radio waves to surrounding stratum, and the radio waves transmitted by the transmitting nipple are received by the magnetic induction antennas of the first receiving nipple and the second receiving nipple and field intensity data are obtained.
Further, the device outside the hole comprises a water passing device, a tap and a slurry pump, wherein the output end of the water passing device is placed in the drill hole and used for flowing the drill hole to the drill hole, and an annular gap for returning water is formed between the outer surface of the water passing device and the drill hole; the tap is connected with the input end of the water passing device, the slurry pump is communicated with the tap through a pipeline, and the slurry pump supplies drilling liquid into the tap and the water passing device through the pipeline.
Further, the water passing device is connected with the faucet through the clamp holder, and the clamp holder can clamp the water passing device to move back and forth.
Further, the hole device further comprises a storage nipple, field intensity data are stored in the storage nipple, and a battery nipple is connected between the transmitting nipple and the storage nipple.
Further, the hole device also comprises a salvage nipple, and the salvage nipple is connected with one end of the storage nipple, which is far away from the battery nipple; the device outside the hole further comprises a goose head and a winch, wherein the goose head is arranged on one side, far away from the water faucet, of the water faucet, the water faucet and the goose head are arranged above the supporting frame, the winch is arranged below the supporting frame and used for paying out a steel wire rope, and the steel wire rope is wound on the goose head and sequentially stretches out of the water faucet and the water faucet to be connected with the salvaging nipple.
Further, the piston is sleeved on the outer side of the fishing nipple, and the piston can drive the in-hole device to move towards the inside of the drilling hole under the pressure drive of drilling liquid.
Further, the first receiving nipple and the second receiving nipple both comprise an outer cylinder and a magnetic core coil, and the magnetic core coil is positioned in the outer cylinder; the magnetic core coil comprises a receiving coil and a magnetic core, and the magnetic core is positioned in the receiving coil.
Further, the first receiving nipple and the second receiving nipple both comprise a circuit board, and the circuit board comprises a signal receiving circuit which is connected with the magnetic core coil.
On the other hand, the invention also provides a geological exploration method in the single horizontal drilling hole, which comprises the following steps:
s1: the device outside the hole lowers the device inside the hole to a measuring position in the drill hole, and a first receiving nipple, a second receiving nipple and a transmitting nipple are arranged on the device inside the hole;
s2: the transmitting nipple transmits radio waves to surrounding stratum, and the first receiving nipple and the second receiving nipple receive the radio waves;
s3: the device outside the hole salvages out of the device inside the hole, processes field intensity data received by the device inside the hole, and indicates that the transmitted radio wave does not encounter a geological abnormal area when no reflected radio wave reaches the first receiving nipple and the second receiving nipple; when the radio wave is reflected to the first receiving nipple and the second receiving nipple, the condition that the radio wave encounters a geological abnormal area is described, and whether the geological abnormal area exists or not and the position and the range of the geological abnormal area are obtained through comparing and calculating the received actual field intensity and the received theoretical field intensity.
Further, in S1, by controlling the lowering speed of the hole device, the lowering process adopts a motion state of uniformly accelerating and then uniformly decelerating, so that the hole device stably reaches the measuring position.
(III) beneficial effects
The beneficial effects of the invention are as follows:
the invention provides a geological exploration device and a geological exploration method in a single horizontal drilling hole, which are used for lowering the device in the hole into a single small-diameter drilling hole formed by core drilling. The hole device adopts a 'one-sending-two-receiving' working mode to obtain a measurement result based on radio wave reflection, and the first receiving nipple and the second receiving nipple are mutually verified, so that the measurement accuracy is improved.
Meanwhile, as the hole is arranged in the drill hole, the interference of iron elements, signals and the like of earth surface equipment can be eliminated, the more accurate magnetic field intensity can be obtained, and the positions and the ranges of faults, karst cave, fracture zones, water-rich areas and the like can be quickly found out at low cost. The invention has simple structure, simple and convenient operation and lower cost, and can realize large-scale geological exploration.
Drawings
FIG. 1 is a schematic diagram of a geological exploration apparatus within a single horizontal borehole;
fig. 2 is a schematic structural view of a first receiving nipple and a second receiving nipple.
[ reference numerals description ]
1: an in-hole device; 11: a first receiving nipple; 12: a second receiving nipple; 13: a transmitting nipple; 14: a storage nipple; 15: a connecting nipple; 16: a battery nipple; 17: salvaging the pup joint; 18: a piston; 101: an outer cylinder; 102: a magnetic core coil; 1021: a receiving coil; 1022: a magnetic core; 103: a circuit board;
2: an out-hole device; 21: a water passage device; 22: a water tap; 23: a goose head; 24: a hoist; 25: a support frame; 26: a wire rope; 27: a slurry pump; 28: a pipeline; 29: a holder;
3: drilling holes; 4: geological anomalies.
Detailed Description
In order that the above-described aspects may be better understood, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
As shown in fig. 1-2, the present invention provides a single horizontal borehole geological prospecting apparatus and method, wherein, as shown in fig. 1, the single horizontal borehole geological prospecting apparatus includes an in-hole apparatus 1 and an out-hole apparatus 2, and the in-hole apparatus 1 adopts a "one-sending-two-receiving" working mode for obtaining measurement results based on radio wave reflection, namely field intensity data. The in-hole device 1 is connected with an out-hole device 2, and the out-hole device 2 is used for lowering the in-hole device 1 into the drill hole 3 or fishing out the drill hole 3.
In particular, as shown in fig. 1, the in-hole apparatus 1 is suitable for small diameter bore holes formed by core drilling. The device comprises a first receiving nipple 11, a second receiving nipple 12, a transmitting nipple 13, a storage nipple 14 and a salvaging nipple 17. The first receiving nipple 11, the second receiving nipple 12 and the transmitting nipple 13 are connected in a straight line through a connecting nipple 15, wherein the connecting nipple 15 is used for controlling the distance between the transmitting nipple 13 and the first receiving nipple 11 and the second receiving nipple 12. Preferably, the first receiving nipple 11, the second receiving nipple 12 and the transmitting nipple 13 are sequentially connected along the axial direction of the borehole 3, at this time, a connecting nipple 15 is also connected to the outer side of the first receiving nipple 11, and the connecting nipple 15 is used for preventing the first receiving nipple 11 from directly contacting the wall of the borehole 3.
It should be noted that "nipple" is a term of art.
The transmitting nipple 13 transmits radio waves to the surrounding stratum, the field intensity data is received by the magnetic induction antennas of the first receiving nipple 11 and the second receiving nipple 12, and the received signals are processed by the receiving control section and stored in the storage nipple 14. In operation, the measurement start time and the measurement time interval can be preset, after the setting, the transmitting nipple 13 transmits radio waves once every fixed time, and the first receiving nipple 11 and the second receiving nipple 12 can perform mutual verification to obtain more accurate measurement results.
Measurement principle: the direct energy of the radio wave propagating through the cavity of the borehole 3 and the drilling fluid is the theoretical field strength value, which is known because the distance of the transmitting nipple 13 from the first receiving nipple 11 and the second receiving nipple 12, the cavity size of the borehole 3, the drilling fluid composition, etc. are fixed and known. If no geological abnormal region is encountered, the actual field intensity values received by the first receiving nipple 11 and the second receiving nipple 12 are the direct energy of the radio waves transmitted by the radio waves through the cavity of the drilling hole 3 and the drilling liquid, and at the moment, the actual field intensity values received by the first receiving nipple 11 and the second receiving nipple 12 are equal to the theoretical field intensity values. If a geological abnormal region is encountered, the actual field intensity values received by the first receiving nipple 11 and the second receiving nipple 12 not only comprise the direct energy of radio waves transmitted by radio waves through the cavity of the drilling hole 3 and drilling liquid, but also comprise the radio wave energy subjected to abnormal geological reflection, and at the moment, the actual field intensity obtained by the first receiving nipple 11 and the second receiving nipple 12 is not equal to the theoretical field intensity.
The field intensity values obtained by the first receiving nipple 11 and the second receiving nipple 12 are stored in the storage nipple 14, and the position and the range of the geological abnormal region are obtained through theoretical calculation. Taking the first receiving nipple 11 as a receiving point as an example, the specific process is as follows:
i, setting the distance between the transmitting nipple 13 and the first receiving nipple 11 as L, setting the field intensity value of radio wave emitted by the transmitting nipple 13 as A, setting the actual field intensity value at the first receiving nipple 11 as B, and setting the energy attenuation coefficient of radio wave propagation in the geological layer as beta 1 The horizontal distance value of the geological abnormal region from the borehole 3 is an unknown quantity X p The depth of the geological abnormal region from the ground is unknown quantity D p ；
II, if the emitted radio wave does not encounter a geological abnormal region around the drill hole 3, no reflected radio wave reaches the first receiving nipple 11, and the energy attenuation coefficient of the radio wave propagating in the cavity of the drill hole 3 and the drilling fluid is beta 2 The method comprises the steps of carrying out a first treatment on the surface of the Due to L, A, D, beta 1 And beta 2 All are known values, and the theoretical field intensity value B of the receiving point can be obtained 0 The method comprises the following steps:if the measured field intensity value of the receiving point is B=B 0 It is explained that the reflected radio wave received by the first receiving nipple 11 does not encounter geological deviationsNormal region, if the measured field strength value B is not equal to B 0 Thirdly, indicating that the reflected radio wave received by the first receiving nipple 11 encounters a geological abnormal region, and processing the measured field intensity value B of the first receiving nipple 11 in the step III;
III, when the radio wave encounters geological abnormal region around the drill hole 3, the theoretical field intensity value B of the receiving point can be obtained p Is represented by the expression:wherein (1)>Radio wave propagation path length, θ, for reflection at geology anomaly p For the angle between the radio wave reflected from the geological abnormal region and the orientation of the first receiving nipple 11
IV for the purpose of finding in step IIIX of (2) p Values, thus constructing a depth scan spectrum S (X p ,|B-B p I), B is the measured field intensity value of the first receiving nipple 11, and the specific process is as follows:
a. setting X p The scanning interval distance of (a) is delta d, m is the scanning times, and X is 0-X p =mΔd, and set the value of m; due to X p Is affected by a number of factors, such as the energy of the source, the sensitivity of the receiver, the formation absorption coefficient and background noise. Therefore, calibration is required according to a specific test environment;
b. when m=1, X p =Δd; according toCan obtain the B at the moment p The value can then be found for the corresponding |B-B p |m＝1；
c. When m=2 is selected again, andrepeating the step B to obtain |B-B p M=2; repeating the steps until reaching the value m set in the step a, thereby obtaining the whole depth scanning spectrum S (D p ,|B-B p I), select B-B in the scan spectrum p X corresponding to the minimum value of I p Further, the depth D of the geological abnormal region can be obtained according to the depth of the first receiving nipple 11 p Further, the position (D) of the geological abnormal region corresponding to the first receiving nipple 11 is determined p ，X p )；
And V, positioning the device 1 in the hole at different measuring positions, and performing a step I to measure each measuring position, integrating the spatial positions of the geological abnormal region corresponding to each measuring position, and finally obtaining the position and the range of the geological abnormal region in the detection region.
Wherein, be connected with battery nipple joint 16 between emission nipple joint 13 and the storage nipple joint 14, battery nipple joint 16 is used for supplying power for downthehole device 1.
Specifically, as shown in fig. 2, each of the first receiving nipple 11 and the second receiving nipple 12 includes an outer cylinder 101, a magnetic core coil 102, and a circuit board 103, the magnetic core coil 102 is located in the outer cylinder 101, the magnetic core coil 102 includes a receiving coil 1021 and a magnetic core 1022, the magnetic core 1022 is located in the receiving coil 1021, the circuit board 103 includes a signal receiving circuit, an amplifying circuit, a filtering circuit, and the like, and the receiving coil 1021 is connected to the signal receiving circuit. The area of the core coil 102 is determined by the area of the receiving coil 1021 and the magnetic permeability of the material of the core 1022, and this directly affects the improvement of the sensitivity of the reception of the first receiving nipple 11 and the second receiving nipple 12, so that fine measurement can be achieved by controlling the area of the core coil 102.
In addition, as shown in fig. 1, a salvage nipple 17 is connected to one end of the storage nipple 14 away from the battery nipple 16. The outside cover of salvaging nipple joint 17 is equipped with piston 18, and piston 18 surface is supported by wear-resisting material for drive downthehole device 1 to the inside removal of drilling 3 under the pressure drive of drilling liquid.
As shown in fig. 1, the device 2 outside the hole comprises a water passing device 21, a water tap 22, a slurry pump 27, a gooseneck 23 and a winch 24, wherein the output end of the water passing device 21 is placed in a drill hole 3 for the flow of drilling fluid to the drill hole 3, and an annular gap for water return is formed between the outer surface of the water passing device 21 and the drill hole 3. The tap 22 is connected with the input end of the water passing device 21, the slurry pump 27 is communicated with the tap 22 through a pipeline 28, and the slurry pump 27 supplies drilling liquid into the tap 22 and the water passing device 21 through the pipeline 28. Wherein the outlet flow of the mud pump 27 can be sized by an electrical program.
In particular, the water dispenser 21 is connected to the faucet 22 by means of a holder 29, the holder 29 being able to hold the water dispenser 21 in a back-and-forth movement so that the water dispenser 21 extends into the bore 3 during operation and retracts out of the bore 3 during non-operation.
The gooseneck 23 and the hoist 24 control the extension and retraction of the wire rope 26. The goose head 23 is arranged on one side of the water faucet 22 far away from the water faucet 21, the water faucet 22 and the goose head 23 are arranged above the supporting frame 25, the winch 24 is arranged below the supporting frame 25, the winch 24 releases the steel wire rope 26, and the steel wire rope 26 is wound on the goose head 23 and sequentially extends out of the water faucet 22 and the water faucet 21 to be connected with the fishing nipple 17. In operation, the lowering speed of the in-hole device 1 is controlled by controlling the lowering/fishing length of the wire rope 26 to control the measuring position of the in-hole device 1 and controlling the outlet flow rate of the mud pump 27.
And (3) a releasing process: the maximum rotation time of the hoist 24 is set according to the position to be measured in the borehole 3, and the length of the wire rope 26 is controlled so that the in-borehole apparatus 1 reaches the measurement position. The in-hole device 1 is aligned with the borehole 3, the slurry pump 27 is turned on, and the in-hole device 1 is lowered to the measurement position by means of hydraulic pressure. In the process of lowering, in order to reduce damage to the in-hole device 1, the whole lowering process adopts a motion process of uniformly accelerating and then uniformly decelerating, so that the in-hole device 1 stably reaches a measuring position. The discharge speed of the in-hole device 1 is controlled by controlling the outlet flow rate of the slurry pump 27 (speed v=flow rate q/area a according to the liquid continuity equation) according to the discharge distance. After the in-hole device 1 reaches a specified position, the slurry pump 27 is turned off, and the device is left for a period of time to obtain a measurement result. If the next measurement point is to be reached, the above process can be repeated.
And (3) fishing: the maximum rotation time of the hoist 24 is set according to the length of the wire rope 26 at present. In the salvaging process, in order to reduce the damage to the in-hole device 1, the rotational speed of a motor for controlling the rotation of the winch 24 is reduced as much as possible to control the salvaging speed of the in-hole device 1, and the whole salvaging process adopts a motion process of uniformly accelerating and then uniformly decelerating so that the in-hole device 1 finally and stably reaches the hole opening of the drill hole 3.
The geological exploration method in the single horizontal drilling hole comprises the following steps of:
s1: the device 2 outside the hole lowers the device 1 inside the hole to a measuring position in the drill hole 3, and a first receiving nipple 11, a second receiving nipple 12 and a transmitting nipple 13 are arranged on the device 1 inside the hole;
s2: the measuring process comprises the following steps: the transmitting nipple 13 transmits radio waves to the surrounding stratum, and the first receiving nipple 11 and the second receiving nipple 12 receive the radio waves;
s3: the out-hole device 2 salvages out-hole device 1 and processes field intensity data received by the in-hole device 1, and when no reflected radio wave reaches the first receiving nipple 11 and the second receiving nipple 12, the transmitted radio wave is not encountered a geological abnormal area; when the radio wave is reflected to the first receiving nipple 11 and the second receiving nipple 12, it is explained that the radio wave encounters a geological abnormal region, and whether the geological abnormal region exists or not and the position and the range of the geological abnormal region are obtained by comparing and calculating the received actual field intensity and the theoretical field intensity.
In the step S1, the lowering speed of the in-hole device 1 is controlled, so that the lowering process adopts a motion state of uniformly accelerating and then uniformly decelerating, and the in-hole device 1 stably reaches the measuring position. If the in-hole device 1 needs to reach the next measuring point, repeating S1-S2, and fishing without re-measurement.
In the description of the present specification, the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., refer to particular features, structures, materials, or characteristics described in connection with the embodiment or example as being included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the invention.
Claims (10)
1. The single horizontal borehole internal geological exploration device is characterized by comprising an in-hole device (1) and an out-hole device (2), wherein the in-hole device (1) is connected with the out-hole device (2), and the out-hole device (2) is used for lowering the in-hole device (1) into a borehole (3) or fishing out of the borehole (3);
the hole inner device (1) comprises a first receiving nipple (11), a second receiving nipple (12) and a transmitting nipple (13), wherein the first receiving nipple (11), the second receiving nipple (12) and the transmitting nipple (13) are connected in a straight line through a connecting nipple (15);
the transmitting nipple (13) transmits radio waves to surrounding stratum, and the radio waves transmitted by the transmitting nipple (13) are received by the magnetic induction antennas of the first receiving nipple (11) and the second receiving nipple (12) and field intensity data are obtained.
2. The single horizontal borehole in-situ geological exploration device according to claim 1, characterized in that said out-of-hole device (2) comprises a water pipe (21), a tap (22) and a mud pump (27), the output end of said water pipe (21) being placed inside said borehole (3) for the flow of drilling fluid towards said borehole (3), an annular gap for water return being formed between the outer surface of said water pipe (21) and said borehole (3);
the water tap (22) is connected with the input end of the water through device (21), the slurry pump (27) is communicated with the water tap (22) through a pipeline (28), and the slurry pump (27) supplies drilling liquid into the water tap (22) and the water through device (21) through the pipeline (28).
3. The single horizontal borehole geological prospecting device according to claim 2, wherein said water feeder (21) is connected to said tap (22) by means of a gripper (29), said gripper (29) being able to grip said water feeder (21) to move back and forth.
4. The single horizontal borehole geological exploration device according to claim 1, characterized in that said in-hole device (1) further comprises a storage nipple (14), said field strength data being stored in said storage nipple (14), a battery nipple (16) being connected between said emission nipple (13) and said storage nipple (14).
5. The single horizontal borehole geological exploration device according to claim 4, characterized in that said in-hole device (1) further comprises a fishing nipple (17), said fishing nipple (17) being connected to the end of said storage nipple (14) remote from said battery nipple (16);
the device (2) outside the hole further comprises a goose head (23) and a winch (24), the goose head (23) is arranged on one side, far away from the water passing device (21), of the water passing device (22), the water passing device (21), the water tap (22) and the goose head (23) are arranged above the supporting frame (25), the winch (24) is arranged below the supporting frame (25), the winch (24) is used for paying out a steel wire rope (26), and the steel wire rope (26) is wound on the goose head (23) and sequentially stretches out of the water passing device (21) and is connected with the fishing nipple (17).
6. The single horizontal borehole geological prospecting apparatus according to claim 5, wherein a piston (18) is sleeved outside the fishing nipple (17), and the piston (18) can drive the in-hole device (1) to move towards the inside of the borehole (3) under the pressure driving of the drilling fluid.
7. The single horizontal borehole geological exploration device according to claim 1, characterized in that said first receiving nipple (11) and said second receiving nipple (12) each comprise an outer barrel (101) and a magnetic core coil (102), said magnetic core coil (102) being located in said outer barrel (101);
the magnetic core coil (102) comprises a receiving coil (1021) and a magnetic core (1022), the magnetic core (1022) being located in the receiving coil (1021).
8. The single horizontal borehole geological exploration device according to claim 7, wherein said first receiving nipple (11) and said second receiving nipple (12) each comprise a circuit board (103), said circuit board (103) comprising signal receiving circuitry, said signal receiving circuitry being connected to said core coil (102).
9. A single horizontal borehole geological exploration method using the single horizontal borehole geological exploration device as claimed in any of claims 1 to 8, comprising the steps of:
s1: the device (2) outside the hole lowers the device (1) inside the hole to a measuring position in the drilling hole (3), and a first receiving nipple (11), a second receiving nipple (12) and a transmitting nipple (13) are arranged on the device (1) inside the hole;
s2: the transmitting nipple (13) transmits radio waves to a surrounding stratum, and the first receiving nipple (11) and the second receiving nipple (12) receive the radio waves;
s3: the device (2) outside the hole salvages out the device (1) inside the hole, processes field intensity data received by the device (1) inside the hole, and indicates that the transmitted radio wave does not encounter a geological abnormal region when no reflected radio wave reaches the first receiving nipple (11) and the second receiving nipple (12); when radio waves are reflected to the first receiving nipple (11) and the second receiving nipple (12), the condition that the radio waves encounter a geological abnormal area is described, and whether the geological abnormal area exists or not and the position and the range of the geological abnormal area are obtained through comparing and calculating the received actual field intensity and the received theoretical field intensity.
10. The single horizontal borehole geological exploration method according to claim 9, characterized in that in S1, by controlling the lowering speed of said in-hole device (1), said lowering process adopts a motion state of uniformly accelerating and then uniformly decelerating, so that said in-hole device (1) stably reaches the measuring position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311030352.7A CN116856912A (en) | 2023-08-16 | 2023-08-16 | Geological exploration device and method in single horizontal drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311030352.7A CN116856912A (en) | 2023-08-16 | 2023-08-16 | Geological exploration device and method in single horizontal drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116856912A true CN116856912A (en) | 2023-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311030352.7A Pending CN116856912A (en) | 2023-08-16 | 2023-08-16 | Geological exploration device and method in single horizontal drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116856912A (en) |
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2023
- 2023-08-16 CN CN202311030352.7A patent/CN116856912A/en active Pending
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