CN114622890A - Directional injection and production equipment for hot dry rock and development method - Google Patents
Directional injection and production equipment for hot dry rock and development method Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 47
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- 239000007924 injection Substances 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000011161 development Methods 0.000 title claims abstract description 15
- 238000005553 drilling Methods 0.000 claims description 48
- 230000005284 excitation Effects 0.000 claims description 31
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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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/30—Specific pattern of wells, e.g. optimising the spacing of wells
- E21B43/305—Specific pattern of wells, e.g. optimising the spacing of wells comprising at least one inclined or horizontal well
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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
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
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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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/02—Rod or cable suspensions
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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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/24—Guiding or centralising devices for drilling rods or pipes
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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
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/20—Geothermal collectors using underground water as working fluid; using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
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Abstract
The invention discloses a directional injection and production device for dry hot rock and a development method thereof, the directional injection and production device comprises a power machine I, a clamping pipe is fixedly arranged at one end of an output shaft of the power machine I and positioned below a stroke plate, a drill rod is sleeved at the bottom of the clamping pipe through threads, a mounting seat is fixedly arranged at a position close to the top of one side of a support frame, a limiting rod is fixedly arranged at the bottom of the mounting seat, the bottom of the limiting rod is fixedly connected with the top of a base, the limiting rod is movably sleeved with the stroke plate, a hoisting device is fixedly arranged at a position at one side of the support frame and positioned at two sides of the mounting seat, and an inclined device is movably sleeved at the bottom of the hoisting device. The purposes of stable heat of the hot dry rock and economic exploitation are achieved, and the defects of high cost and the like in the prior art are avoided.
Description
Technical Field
The invention relates to the technical field of hot dry rock mining, in particular to a hot dry rock directional injection and mining device and a development method.
Background
In recent years, the development and utilization of deep geothermal resources have been rapidly developed, and the deep geothermal resources have become a key research strategy to replace clean energy in various countries in the world, and the deep geothermal resources can be divided into two types, namely hydrothermal type and hot dry rock type. The dry hot rock is a high-temperature rock body which is buried in the underground with the depth of 3-10 kilometers and does not contain water or steam, takes granite and other igneous rocks as main materials, has the temperature higher than 180 ℃, has the characteristics of high temperature, hardness and compactness, and can be developed and utilized by the heat energy contained in the dry hot rock. The development potential of the hot dry rock resources is huge, the distribution range is wide, cleanness and sustainability are realized, and the energy contained in the hot dry rock in the deep part of the crust is estimated to be 30 times of the total energy of the globalized stone energy source. The hot dry rock resources are obviously different from the traditional geothermal resources in temperature, lithology, compactness and the like, and the exploitation and utilization modes are also greatly different.
Under the current technical conditions, the development technology of dry and hot rock resources is not mature, the mining cost is high, and the main technical bottleneck is that the efficient and stable communication between wells is difficult to realize, so that the area of rock masses participating in heat exchange is small, the temperature of a reservoir is reduced quickly, and the heat extracted to the ground is insufficient. At present, the domestic hot dry rock is not commercially operated and developed, and only the French Sulzer hot dry rock project is explored for more than 20 years and is put into commercial operation abroad.
In recent years, the national demand for clean energy is pressing day by day, and the key technology for exploiting the dry and hot rock resources is invested more and more. Patent CN106885385A discloses a single-well dry hot rock heat energy extraction system, CN113513299A discloses a dry hot rock vertical well same-well injection and extraction method, patent CN112303945B discloses a dry hot rock non-fracturing butt-joint well heat extraction device, patent CN110006185B discloses a dry hot rock geothermal exploitation method, patent CN108224820A discloses a dry hot rock stratum well net structure, and CN110360761A discloses a tree-shaped dry hot rock well structure and exploitation method, and the patents realize dry hot rock heat energy exploitation in different degrees.
However, the above patents do not effectively solve the problems of small heat exchange area (single well), large input-output ratio and the like of the dry and hot rock, in addition, the drilling cost of the dry and hot rock is extremely high (the development cost is over 50%), the simple increase of the number of the well holes and the density of the well network to increase the heat exchange area does not have economic feasibility, directional injection and production equipment is needed in the process of mining the dry and hot rock, the traditional injection and production equipment is composed of a derrick, a drilling machine, a drill rod, a hoisting machine and the like, when in use, the drilling machine is used for drilling the drill rod into the drilled well, after the drill rod is completely drilled into the drilled well, the hoisting machine is used for hoisting the other drill rod to be fixed on the drilling machine, and drilling operation is continued, and the injection and production equipment of the type is the most wide injection and production equipment in the current use range, and has the advantages of convenience in use, stable functions, low cost and the like.
Although the existing drilling machine has many advantages, certain limitation still exists in the actual use process, because the hoisting equipment needs to align the connection part of the drill rod and the drilling machine when hoisting the drill rod, the hoisting equipment and the drilling machine are relatively close in installation position, the hoisting equipment cannot be hoisted in the drilling process, the drilling rod can be hoisted only after being completely drilled and the drilling machine is completely reset, the drilling efficiency is greatly reduced due to the time-consuming mode, and therefore the application document provides the dry and hot rock directional injection and production equipment and the development method, and aims to solve the problems.
Disclosure of Invention
The invention provides the dry hot rock directional injection and production equipment and the development method, which have the advantages of simultaneous drilling and drill rod hoisting and solve the problems in the background technology, aiming at the defects of the existing dry hot rock directional injection and production equipment and the development method in the use process.
The invention provides the following technical scheme: a supporting frame is fixedly arranged at the position, close to one end, of the top of the base, a stroke groove is formed in one side of the supporting frame, a stroke machine is fixedly arranged at the position, located at the other side of the supporting frame, of the top of the base, a stroke plate is fixedly arranged at one end of an output shaft of the stroke machine, the stroke plate penetrates through the supporting frame, a power machine I is fixedly arranged at the top of the stroke plate, the output shaft of the power machine I penetrates through the stroke plate, a clamping pipe is fixedly arranged at one end of the output shaft of the power machine I and located below the stroke plate, a drill rod is sleeved at the bottom of the clamping pipe through threads, a mounting seat is fixedly arranged at the position, close to the top, of one side of the supporting frame, a limiting rod is fixedly arranged at the bottom of the mounting seat, and the bottom of the limiting rod is fixedly connected with the top of the base, the utility model discloses a safety device, including base, travel plate, gag lever post, support frame, tilting device, bearing device, base top, adjusting device and lifting device, the gag lever post cup joints with the travel plate activity, fixed mounting has hoisting device on the position that support frame one side is located the mount pad both sides, hoisting device's bottom activity has cup jointed the tilting device, the tilting device both sides activity has cup jointed bears the device, the base top has seted up the alignment hole on the position that is located support frame one side, fixed mounting has adjusting device on the position that the base top is located alignment hole one side, adjusting device and tilting device fixed connection.
Preferably, hoist device includes the connecting plate, the quantity of connecting plate is two and fixed mounting in support frame one side, is located the position of mount pad both sides, one side fixed mounting of connecting plate has hoist and mount frame, the inside activity of hoist and mount frame has cup jointed the traction sleeve, one side fixed mounting of hoist and mount frame surface has engine II, the one end of II output shafts of engine and the telescopic one end fixed connection of traction, the one end fixedly connected with hoist and mount seat of II haulage ropes of engine, the bottom fixed mounting of connecting plate has the mounting panel, mounting panel one side fixed mounting has the slide rail, there is the base mounting panel one side through slide rail movable mounting, the bottom fixed mounting of base has the fixing base, the fixed bearing that has cup jointed in the inside of fixing base, the fixed tilting gear that has cup jointed of bearing inner circle.
Preferably, the tilting device includes the rotary rod, the mounting groove has been seted up to the both sides of rotary rod surface, the inside fixed mounting of mounting groove has the telescopic machine, the fixed cover of surface of telescopic machine output shaft has connect only journey sleeve, the activity of telescopic machine outer output shaft surface position in only journey sleeve top has cup jointed even board and has rotated the seat, fixed mounting has only journey board on the position that rotary rod surface both sides are located the mounting groove below, it contacts with bearing device to end journey board, the bottom and the adjusting device fixed connection of rotary rod, fixed the cup jointing has rotatory footstock on the position that the rotary rod surface is close to the top, bearing device has been cup jointed in the both ends activity of rotatory footstock, the top fixed mounting of rotary rod has universal connecting axle, the top of universal connecting axle cup joints with the inner circle of bearing is fixed.
Preferably, the axis of the rotating rod is inclined with respect to the top of the base.
Preferably, bear the device and include the hang plate, the top fixed mounting of hang plate has the axis of rotation, fixed mounting has the bearing bottom plate on the position that hang plate one side is close to the bottom, fixed mounting has the bearing curb plate on the position that hang plate one side is located the bearing bottom plate top, V type groove has been seted up to one side of bearing the curb plate, the opposite side activity of bearing the curb plate has been cup jointed and has been rotated even board, the one end of rotating even board and even board rotation seat activity cup joint.
Preferably, the adjusting device comprises an adjusting seat, a screw rod is movably sleeved inside the adjusting seat, an adjusting machine is fixedly mounted at one end of the outer surface of the adjusting seat, one end of an output shaft of the adjusting machine is fixedly connected with the screw rod, a swinging seat is sleeved on the outer surface of the screw rod through threads, a power machine III is movably sleeved on the top of the swinging seat, and one end of an output shaft of the power machine III is fixedly connected with the bottom of the rotating rod.
Preferably, the development method of the dry hot rock directional injection and production equipment comprises the following steps:
s1: on the basis of data analysis, geological survey, geophysical exploration, drilling and the like, selecting a high-temperature hot dry rock stratum with the temperature of 180 ℃ as a target layer, then comprehensively predicting and evaluating the lithology, the primary fracture parameters, the permeability and the like of the target layer, selecting a region with relatively developed primary fracture and relatively high permeability, and further determining the spatial position and the primary fracture parameters of a deep target area for directional injection and production of hot dry rock, namely defining a 'geological dessert';
s2: designing a well bore track of a first directional well according to the 'geological dessert' parameters, and then constructing the first directional well, wherein the well bore track of the first directional well enters the 'geological dessert' and is approximately orthogonal to a main primary crack surface of the dry heat rock, and the bottom of the well bore is close to or drills through the lower part of the 'geological dessert';
s3: in the drilling process, the power machine II drives the traction sleeve to rotate and release the hoisting seat, the hoisting seat is connected with the drill rod in a manual mode, the drill rod is driven to hoist by the power machine II and is placed on the bearing bottom plate, and meanwhile, the drill rod is matched with the V-shaped groove on one side of the bearing side plate by means of inclination, so that the drill rod is fixed relatively firmly;
s4: after the stroke machine, the stroke plate, the power machine I and the clamping pipe finish drilling of the drill rod, the power machine III drives the rotating rod to rotate by one hundred eighty degrees, the drill rod which is just finished being hoisted is rotated to the position where the clamping pipe and the aligning hole are aligned, at the moment, the stroke machine and the power machine I are started, and the clamping pipe is clamped with the drill rod;
s5: after the clamping connection pipe and the drill rod are clamped, the telescopic machine starts to operate and extends outwards at the moment, the stop sleeve is driven to move along the direction of an output shaft of the telescopic machine, the connecting plate rotating seat is pushed to reset, the bearing device is reset to be in a state parallel to the axis of the rotating rod, the bearing bottom plate is separated from the bottom of the drill rod, the drilling operation is started at the moment, and the bearing device on the other side synchronously carries out the drill rod hoisting operation in the same step;
s6: reservoir excitation is carried out in a geological dessert of the hot dry rock through a shaft channel established by a first directional well, an artificial fracture area, namely an engineering dessert, is formed after the reservoir excitation, the reservoir excitation effect is observed and evaluated through means such as micro-seismic, an electromagnetic method and well logging, and the spatial position and range of the engineering dessert in the artificial fracture area and artificial fracture parameters are obtained;
s7: designing a well bore track of a second directional well according to the 'engineering sweet spot' parameter, and then constructing the second directional well, wherein the second directional well track is drilled into the 'engineering sweet spot' at one side far away from the well bore of the first directional well, and the well bore of the second directional well is approximately orthogonal to the main artificial crack surface in the 'engineering sweet spot';
s8: injecting heat exchange fluid into the ground by using a first directional well of injection equipment, exchanging heat of the heat exchange fluid through cracks in the hot dry rock geological dessert and the engineering dessert, and extracting the heated heat exchange fluid through a second directional well to return to the ground to form circulation;
s9: after the temperature and the flow of the extracted heat exchange fluid reach stability, the heat extraction and utilization device is installed, and the efficient and stable utilization of the heat energy of the hot dry rock is realized.
Preferably, the reservoir excitation mode comprises hydraulic excitation, thermal excitation, chemical excitation or combination excitation of the first three.
Preferably, the number of the directional wells can be more than 2, the diameter of a final hole forming well mouth is not less than 215.9mm, the heat exchange fluid is water or carbon dioxide, and the dry-hot rock heat energy extraction and utilization device is an organic Rankine cycle power generation device.
The invention has the following beneficial effects:
1. according to the invention, the bearing devices are movably sleeved on two sides of the tilting device, and meanwhile, the stroke plate is fixedly arranged at one end of the output shaft of the stroke machine, and the hoisting devices are fixedly arranged at positions, which are positioned on two sides of the mounting seat, of one side of the support frame, so that the hoisting device and the bearing device on the other side of the tilting device can hoist the drill rod in the process of drilling, and thus, the device can simultaneously drill and hoist the drill rod, the traditional equipment cannot have the effect, and the drilling efficiency of the device is improved.
2. The invention keeps the inclined state with the top of the base through the axis of the rotating rod, so that when the bearing device rotates to one side far away from the support frame in the rotating process of the rotating rod, the bearing device keeps the inclined state, the drill rod is pulled to the upper part of the bearing bottom plate through the traction sleeve and the hoisting seat, the bearing device bearing the drill rod keeps the inclined state at the moment, and the V-shaped groove is formed in one side of the bearing side plate, so that the gravity of the drill rod generates component force vertical to the bearing device under the inclined action of the bearing device, the drill rod can be limited under the combined action of the V-shaped groove in one side of the bearing side plate and the support of the bearing bottom plate, the drill rod can be ensured to be fixed, and the problem that the safety accident is easily caused by the fact that the drill rod can be kept stable to be conveniently aligned by manual participation when the traditional equipment lifts the drill rod is avoided, the safety performance of the device is improved.
3. The invention makes the drill rod move to the position under the power machine I under the drive of the rotating rod by rotating the power machine III after the drill rod completes the drilling on the stroke machine, the stroke plate, the power machine I and the clamping pipe by movably sleeving one end of the rotating connecting plate with the rotating seat of the connecting plate, so that the bearing device in an inclined state moves to the position under the power machine I under the drive of the rotating rod, the drill rod and the bearing device are in a vertical state under the action of gravity, the axis of the drill rod, the axis of the alignment hole and the axis of the clamping pipe are aligned at the moment, the descending of the stroke plate and the rotation of the clamping pipe driven by the power machine I can ensure that the clamping pipe and the drill rod can be stably clamped, the problem that the drilling function is abnormal due to the fact that the drill rod, the clamping pipe and the alignment hole are not aligned is solved, the running stability of the device is improved, and simultaneously, when the bearing device is changed from the inclined state to the vertical state, the contained angle increase between hang plate and the rotating rod axis this moment for rotate even the board and take place the displacement and make even the board rotate the seat and slide along the axis direction of telescopic machine, make and bear the device and increase along axis of rotation pivoted in-process resistance, avoid bearing the device state change after excessive swing under inertial effect and lead to long-time joint pipe can't be aligned with the drilling rod and cause the problem that drilling efficiency reduces, or bear the device excessive wobbling problem under the great condition of wind-force, the device's reliability has been improved.
4. According to the invention, the connecting plate rotating seat is movably sleeved on the position, above the stop sleeve, of the outer surface of the output shaft of the telescopic machine, so that after the clamping connection pipe and the drill rod are clamped, the telescopic machine drives the output shaft to extend out, the stop sleeve pushes the connecting plate rotating seat to move upwards, the rotating connecting plate is pushed to reset, the inclined plate in an inclined state is kept in a state parallel to the axis of the rotating rod, the bearing bottom plate is moved away from the position under the drill rod, the situation that the bearing bottom plate blocks the drill rod to drill is avoided, and the operation stability of the device is improved.
5. According to the invention, the adjusting machine is fixedly arranged at one end of the outer surface of the adjusting seat, so that the transverse position of the swinging seat can be adjusted when the adjusting machine rotates, the inclination degree of the tilting device is adjusted, when a drill rod with a larger diameter is used in the drilling operation, the situation that the bearing device can be withdrawn by a larger angle in the process that the telescopic machine drives the stop sleeve to push the connecting plate rotating seat and the bearing device is reset is ensured, the bearing bottom plate is completely separated from the bottom of the drill rod, the problem that the device is damaged due to collision between the large-diameter drill rod and the bearing bottom plate when the large-diameter drill rod drills downwards is avoided, and the practicability and reliability of the device are improved.
6. The invention aims to improve the connectivity between dry and hot rock wells and increase the water-rock heat exchange area through the injection-production development method so as to realize the dry and hot rock exploitation, the invention takes dessert determination and directional well formation as the core, respectively determines the dry and hot rock geological dessert and the dry and hot rock engineering dessert through comprehensive exploration, monitoring and evaluation, carries out directional well formation and reservoir excitation, fully utilizes the existing native cracks and the excited artificial cracks of a dry and hot rock target layer, realizes the coupling communication of the two types of cracks, realizes the high-efficiency communication and large-area heat exchange between the dry and hot rock injection-production wells, achieves the purposes of stable dry and hot rock heat and economic exploitation, and avoids the defects of insufficient single-well exploitation heat exchange area, rapid yield reduction, high multi-well eye cost and the like in the prior art
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic right-view of the structure of the present invention;
FIG. 3 is a schematic rear view of the structure of the present invention;
FIG. 4 is a schematic cross-sectional view taken along the direction A in FIG. 3 according to the present invention;
FIG. 5 is a schematic view of a structural hoisting device of the present invention;
FIG. 6 is a left side view of the structural lifting device of the present invention;
FIG. 7 is a schematic cross-sectional view taken along the direction B in FIG. 6 according to the present invention;
FIG. 8 is a schematic view of a tilting device according to the present invention;
FIG. 9 is a front view of the tilting device of the present invention;
FIG. 10 is a schematic top view of a tilting device in accordance with the present invention;
FIG. 11 is a schematic cross-sectional view taken along the direction C in FIG. 10 according to the present invention;
FIG. 12 is a schematic view of a structural support apparatus of the present invention;
FIG. 13 is a schematic top view of a structural support apparatus of the present invention;
FIG. 14 is a schematic cross-sectional view taken along direction D in FIG. 13 according to the present invention;
FIG. 15 is a schematic view of a structural adjustment device of the present invention;
FIG. 16 is a front schematic view of a structural adjustment device of the present invention;
FIG. 17 is a right side view of the structural adjustment device of the present invention;
FIG. 18 is a schematic cross-sectional view taken along direction E in FIG. 17;
FIG. 19 is a schematic diagram of the steps of the method of the present invention.
FIG. 20 is a schematic diagram of step S1 of the method of the present invention;
FIG. 21 is a schematic diagram of step S2 of the method of the present invention;
FIG. 22 is a schematic diagram of step S6 of the method of the present invention;
FIG. 23 is a schematic diagram of step S7 of the method of the present invention;
FIG. 24 is a schematic view of step S8 of the method of the present invention;
FIG. 25 is a diagram of step S9 of the method of the present invention.
In the figure: 1. a base; 2. a support frame; 3. a stroke slot; 4. a stroke machine; 5. a stroke plate; 6. a power machine I; 7. clamping the connecting pipe; 8. a drill stem; 9. a mounting seat; 10. a limiting rod; 11. hoisting the device; 111. a connecting plate; 112. a hoisting frame; 113. a traction sleeve; 114. a power machine II; 115. hoisting a seat; 116. mounting a plate; 117. a slide rail; 118. a base; 119. a fixed seat; 1101. a bearing; 12. a tilting device; 121. rotating the rod; 122. mounting grooves; 123. a compressor; 124. a stroke stopping sleeve; 125. a connecting plate rotating seat; 126. a stroke stopping plate; 127. rotating the top seat; 128. a universal connecting shaft; 13. a carrying device; 131. an inclined plate; 132. a rotating shaft; 133. a load floor; 134. a load bearing side plate; 135. rotating the connecting plate; 14. an alignment hole; 15. an adjustment device; 151. an adjusting seat; 152. a screw rod; 153. a conditioner; 154. a swing seat; 155. and a power machine III.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a directional injection and production device for hot dry rock and a development method thereof comprise a base 1, a support frame 2 is fixedly installed at a position, close to one end, of the top of the base 1, a stroke groove 3 is formed in one side of the support frame 2, a stroke machine 4 is fixedly installed at a position, located at the other side of the support frame 2, of the top of the base 1, a stroke plate 5 is fixedly installed at one end of an output shaft of the stroke machine 4, the stroke plate 5 penetrates through the support frame 2, a power machine i 6 is fixedly installed at the top of the stroke plate 5, an output shaft of the power machine i 6 penetrates through the stroke plate 5, a clamping pipe 7 is fixedly installed at a position, located below the stroke plate 5, of one end of the output shaft of the power machine i 6, a drill rod 8 is sleeved at the bottom of the clamping pipe 7 through threads, a mounting seat 9 is fixedly installed at a position, close to the top, of one side of the support frame 2, and a limiting rod 10 is fixedly installed at the bottom of the mounting seat 9, the bottom of a limiting rod 10 is fixedly connected with the top of a base 1, the limiting rod 10 is movably sleeved with a stroke plate 5, a hoisting device 11 is fixedly installed at the position, located at two sides of an installation seat 9, of one side of a support frame 2, a tilting device 12 is movably sleeved at the bottom of the hoisting device 11, a bearing device 13 is movably sleeved at two sides of the tilting device 12, meanwhile, the stroke plate 5 is fixedly installed at one end of an output shaft of a stroke machine 4, and the hoisting device 11 is fixedly installed at the position, located at two sides of the installation seat 9, of one side of the support frame 2, so that the stroke plate 5 and the bearing device 13 located at one side of the tilting device 12 can hoist a drill rod in the drilling process, and meanwhile, the hoisting device 11 and the bearing device 13 at the other side of the tilting device 12 can hoist the drill rod, thereby realizing that the device can simultaneously drill and hoist the drill rod, while the traditional equipment can not have the effect, and improving the drilling efficiency of the device, an aligning hole 14 is formed in the position, located on one side of the supporting frame 2, of the top of the base 1, an adjusting device 15 is fixedly mounted in the position, located on one side of the aligning hole 14, of the top of the base 1, and the adjusting device 15 is fixedly connected with the inclining device 12.
Referring to fig. 5-7, the hoisting device 11 includes two connecting plates 111, the two connecting plates 111 are fixedly mounted on one side of the support frame 2 and located on two sides of the mounting seat 9, a hoisting frame 112 is fixedly mounted on one side of the connecting plates 111, a traction sleeve 113 is movably sleeved inside the hoisting frame 112, a power machine ii 114 is fixedly mounted on one side of the outer surface of the hoisting frame 112, one end of an output shaft of the power machine ii 114 is fixedly connected with one end of the traction sleeve 113, one end of a traction rope of the power machine ii 114 is fixedly connected with a hoisting seat 115, a mounting plate 116 is fixedly mounted at the bottom of the connecting plates 111, a slide rail 117 is fixedly mounted on one side of the mounting plate 116, a base 118 is movably mounted on one side of the mounting plate 116 through the slide rail 117, a fixing seat 119 is fixedly mounted at the bottom of the base 118, a bearing 1101 is fixedly secured to the inside of the fixing seat 119, and an inclined device 12 is fixedly secured to an inner ring of the bearing 1101.
Referring to fig. 8-11, the tilting apparatus 12 includes a rotating rod 121, mounting grooves 122 are formed on two sides of an outer surface of the rotating rod 121, a telescopic machine 123 is fixedly installed inside the mounting groove 122, a stop sleeve 124 is fixedly sleeved on an outer surface of an output shaft of the telescopic machine 123, a connecting plate rotating seat 125 is movably sleeved on a position, above the stop sleeve 124, of the outer surface of the output shaft of the telescopic machine 123, so that after the clamping pipe 7 is clamped with the drill rod 8, the telescopic machine 123 drives the output shaft to extend out, so that the stop sleeve 124 pushes the connecting plate rotating seat 125 to move upwards, thereby pushing the rotating connecting plate 135 to reset, so that the tilting plate 131 in the tilting state keeps a state parallel to an axis of the rotating rod 121, thereby moving the bearing bottom plate 133 away from a position right below the drill rod 8, preventing the bearing bottom plate 133 from blocking the drill hole of the drill rod 8, improving the operation stability of the apparatus, stop plates 126 are fixedly installed on positions, below the mounting grooves 122, on two sides of the outer surface of the rotating rod 121, the stroke stopping plate 126 is in contact with the bearing device 13, the bottom of the rotating rod 121 is fixedly connected with the adjusting device 15, a rotating top seat 127 is fixedly sleeved on the position, close to the top, of the outer surface of the rotating rod 121, the bearing device 13 is movably sleeved at two ends of the rotating top seat 127, a universal connecting shaft 128 is fixedly installed at the top of the rotating rod 121, and the top of the universal connecting shaft 128 is fixedly sleeved with an inner ring of the bearing 1101.
Referring to fig. 12 to 14, the axis of the rotating rod 121 and the top of the base 1 are kept in an inclined state, so that in the rotating process of the rotating rod 121, when the bearing device 13 rotates to a side far away from the support frame 2, at this time, the bearing device 13 is kept in an inclined state, at this time, the drill rod 8 is pulled to the upper side of the bearing bottom plate 133 through the pulling sleeve 113 and the hoisting seat 115, because the bearing device 13 bearing the drill rod 8 is kept in an inclined state, and at the same time, a V-shaped groove is formed in one side of the bearing side plate 134, so that the gravity of the drill rod 8 generates a component force perpendicular to the bearing device 13 under the action of the inclination of the bearing device 13, and the drill rod 8 can be limited under the combined action of the V-shaped groove in one side of the bearing side plate 134 and the support of the bearing bottom plate 133, thereby ensuring that the drill rod 8 can be fixed, and avoiding the problem that the conventional equipment needs to manually participate in lifting the drill rod 8 to keep the drill rod 8 stable so as to facilitate alignment, which easily results in safety The safety performance of the device is improved due to the accident.
Referring to fig. 15-18, the bearing device 13 includes an inclined plate 131, a rotating shaft 132 is fixedly installed on the top of the inclined plate 131, a bearing bottom plate 133 is fixedly installed on a position near the bottom of one side of the inclined plate 131, a bearing side plate 134 is fixedly installed on a position above the bearing bottom plate 133 on one side of the inclined plate 131, a V-shaped groove is formed on one side of the bearing side plate 134, a rotating connecting plate 135 is movably sleeved on the other side of the bearing side plate 134, one end of the rotating connecting plate 135 is movably sleeved with a connecting plate rotating seat 125, so that after the drilling rod 8 is drilled by the stroke machine 4, the stroke plate 5, the power machine i 6 and the clamping pipe 7, the power machine iii 155 drives the rotating rod 121 to rotate one hundred eighty degrees, the bearing device 13 in the inclined state is driven by the rotating rod 121 to move to a position right below the power machine i 6, and the drilling rod 8 and the bearing device 13 are in a vertical state under the action of gravity, therefore, the axis of the drill rod 8 at the moment, the axis of the alignment hole 14 and the axis of the clamping pipe 7 are aligned, the descending of the stroke plate 5 is ensured, the clamping pipe 7 and the drill rod 8 can be stably clamped in the process that the power machine I6 drives the clamping pipe 7 to rotate, the problem that the drilling function is abnormal due to the fact that the drill rod 8, the clamping pipe 7 and the alignment hole 14 are not aligned is solved, the operation stability of the device is improved, meanwhile, when the bearing device 13 is changed from an inclined state to a vertical state, the included angle between the axis of the inclined plate 131 and the axis of the rotating rod 121 is increased, the rotating connecting plate 135 is displaced, the connecting plate rotating seat 125 slides along the axis direction of the extension machine 123, the resistance of the bearing device 13 in the rotating process along the axis of the rotating shaft 132 is increased, and the problem that the clamping pipe 7 cannot be aligned with the drill rod 8 for a long time due to excessive swinging under the inertia effect after the state of the bearing device 13 is changed, and the drilling efficiency is reduced is solved Or the problem that the bearing device 13 excessively swings under the condition of large wind power, the reliability of the device is improved.
Referring to fig. 17-18, the adjusting device 15 includes an adjusting seat 151, a screw 152 is movably sleeved inside the adjusting seat 151, an adjusting machine 153 is fixedly installed at one end of the outer surface of the adjusting seat 151, so that the adjusting machine 153 can adjust the transverse position of the swinging seat 154 when rotating, thereby adjusting the tilting degree of the tilting device 12, when a drill rod with a larger diameter is used in the drilling operation, it is ensured that the telescopic machine 123 drives the stopping sleeve 124 to push the connecting plate rotating seat 125 and the carrying device 13 is reset, the carrying device 13 can be retracted by a larger angle, it is ensured that the carrying bottom plate 133 is completely separated from the bottom of the drill rod 8, the problem that the device is damaged due to collision between the large-diameter drill rod and the carrying bottom plate 133 when the large-diameter drill rod is drilled downwards is avoided, the practicability and reliability of the device are improved, one end of the output shaft of the adjusting machine 153 is fixedly connected with the screw 152, the outer surface of the screw 152 is sleeved with the swinging seat 154 through a screw thread, the top of the swing seat 154 is movably sleeved with a power machine III 155, and one end of an output shaft of the power machine III 155 is fixedly connected with the bottom of the rotating rod 121.
Referring to fig. 19-25, the method of the present invention is as follows, S1: on the basis of data analysis, geological survey, geophysical exploration, drilling and the like, selecting a high-temperature hot dry rock stratum with the temperature reaching 180 ℃ as a target layer, then comprehensively predicting and evaluating the lithology, the primary fracture parameters, the permeability and the like of the target layer, selecting a region with relatively developed primary fracture and relatively high permeability, and further determining the spatial position of a deep target area for directional injection and extraction of hot dry rock and the primary fracture parameters, namely delineating a geological dessert;
s2: designing a well bore track of a first directional well according to the 'geological dessert' parameters, and then constructing the first directional well, wherein the well bore track of the first directional well enters the 'geological dessert' and is approximately orthogonal to a main primary crack surface of the dry heat rock, and the bottom of the well bore is close to or drills through the lower part of the 'geological dessert';
s3: in the drilling process, the power machine II drives the traction sleeve to rotate and release the hoisting seat, the hoisting seat is connected with the drill rod in a manual mode, the drill rod is driven to hoist by the power machine II and is placed on the bearing bottom plate, and meanwhile, the drill rod is matched with the V-shaped groove on one side of the bearing side plate by means of inclination, so that the drill rod is fixed relatively firmly;
s4: after the stroke machine, the stroke plate, the power machine I and the clamping pipe finish drilling of the drill rod, the power machine III drives the rotating rod to rotate by one hundred eighty degrees, the drill rod which is just finished being hoisted is rotated to the position where the clamping pipe and the aligning hole are aligned, at the moment, the stroke machine and the power machine I are started, and the clamping pipe is clamped with the drill rod;
s5: after the clamping connection pipe and the drill rod are clamped, the telescopic machine starts to operate and extends outwards at the moment, the stop sleeve is driven to move along the direction of the output shaft of the telescopic machine, the connecting plate rotating seat is pushed to reset, the bearing device is reset to be in a state parallel to the axis of the rotating rod, the bearing bottom plate is separated from the bottom of the drill rod, drilling operation is started at the moment, and the bearing device on the other side synchronously carries out drill rod hoisting operation in the same step while drilling;
s6: reservoir excitation is carried out in a geological dessert of the hot dry rock through a shaft channel established by a first directional well, an artificial fracture area, namely an engineering dessert, is formed after the reservoir excitation, the reservoir excitation effect is observed and evaluated through means such as micro-seismic, an electromagnetic method and well logging, and the spatial position and range of the engineering dessert in the artificial fracture area and artificial fracture parameters are obtained;
s7: designing a well bore track of a second directional well according to the 'engineering sweet spot' parameter, and then constructing the second directional well, wherein the second directional well track is drilled into the 'engineering sweet spot' at one side far away from the well bore of the first directional well, and the well bore of the second directional well is approximately orthogonal to the main artificial crack surface in the 'engineering sweet spot';
s8: injecting heat exchange fluid into the ground by using a first directional well of injection equipment, exchanging heat of the heat exchange fluid through cracks in the hot dry rock geological dessert and the engineering dessert, and extracting the heated heat exchange fluid through a second directional well to return to the ground to form circulation;
s9: after the temperature and the flow of the extracted heat exchange fluid reach stability, the heat extraction and utilization device is installed, and the efficient and stable utilization of the heat energy of the hot dry rock is realized.
The reservoir excitation mode comprises hydraulic excitation, thermal excitation, chemical excitation or combination excitation of the hydraulic excitation, the thermal excitation and the chemical excitation.
The number of the directional wells can be more than 2, the diameter of a final hole forming well mouth is not less than 215.9mm, the heat exchange fluid is water or carbon dioxide, and the hot dry rock heat energy extraction and utilization device is an organic Rankine cycle power generation device.
The using method of the invention is as follows:
in the using process, the stroke plate 5 and the bearing device 13 on one side of the tilting device 12 are used for drilling, the hoisting device 11 and the bearing device 13 on the other side of the tilting device 12 can hoist the drill rod, the rotating rod 121 is used for rotating, when the bearing device 13 rotates to one side far away from the support frame 2, the bearing device 13 keeps an inclined state, the drill rod 8 is pulled to the upper side of the bearing bottom plate 133 through the pulling sleeve 113 and the hoisting seat 115, and the bearing device 13 for bearing the drill rod 8 keeps the inclined state, so that the gravity of the drill rod 8 generates a component force vertical to the bearing device 13 under the inclined action of the bearing device 13, the drill rod 8 can be limited under the combined action of the V-shaped groove on one side of the bearing side plate 134 and the support of the bearing bottom plate 133, and the drill rod 8 can be fixed under the combined action of the support of the stroke machine 4, the bearing bottom plate 133, After the stroke plate 5, the power machine I6 and the clamping pipe 7 complete drilling, at the moment, the power machine III 155 drives the rotating rod 121 to rotate one hundred eighty degrees, so that the bearing device 13 in the inclined state moves to the position right below the power machine I6 under the driving of the rotating rod 121, at the moment, the drill rod 8 and the bearing device 13 are in the vertical state under the action of gravity, and therefore the axis of the drill rod 8 at the moment, the axis of the aligned hole 14 and the axis of the clamping pipe 7 are aligned, when the bearing device 13 is changed from the inclined state to the vertical state, the included angle between the inclined plate 131 and the axis of the rotating rod 121 is increased, the rotating connecting plate 135 is displaced, the connecting plate rotating seat 125 slides along the axis direction of the telescopic machine 123, the resistance is increased in the process of rotating the bearing device 13 along the axis of the rotating shaft 132, and the telescopic machine 123 drives the output shaft to extend after the clamping pipe 7 and the drill rod 8 complete clamping, thereby make the journey sleeve 124 promote even board and rotate seat 125 and move upwards, thereby promote and rotate even board 135 and reset, make the inclined plate 131 of tilt state keep the state parallel with the rotary rod 121 axis here, thereby make bearing bottom plate 133 remove from the drilling rod 8 under, the lateral position of adjustable swing seat 154 when adjuster 153 rotates, thereby adjust the inclination of tilting device 12, when this drilling operation uses the drilling rod that the diameter is great, guarantee that the compressor 123 drives journey sleeve 124 of journey and promotes even board and rotate seat 125 and make bearing device 13 carry out the in-process that resets, bearing device 13 can withdraw bigger angle, guarantee that bearing bottom plate 133 breaks away from the bottom of drilling rod 8 completely.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a directional notes of hot dry rock equipment of adopting, includes base (1), its characterized in that: the device is characterized in that a support frame (2) is fixedly arranged at a position, close to one end, of the top of the base (1), a stroke groove (3) is formed in one side of the support frame (2), a stroke machine (4) is fixedly arranged at a position, located at the other side of the support frame (2), of the top of the base (1), a stroke plate (5) is fixedly arranged at one end of an output shaft of the stroke machine (4), the stroke plate (5) penetrates through the support frame (2), a power machine I (6) is fixedly arranged at the top of the stroke plate (5), an output shaft of the power machine I (6) penetrates through the stroke plate (5), a clamping pipe (7) is fixedly arranged at a position, located below the stroke plate (5), of one end of the output shaft of the power machine I (6), a drill rod (8) is sleeved at the bottom of the clamping pipe (7) through threads, and a mounting seat (9) is fixedly arranged at a position, close to the top, of one side of the support frame (2), the bottom fixed mounting of mount pad (9) has gag lever post (10), the bottom of gag lever post (10) and the top fixed connection of base (1), gag lever post (10) cup joint with stroke board (5) activity, fixed mounting has hoist device (11) on the position that support frame (2) one side is located mount pad (9) both sides, tilting device (12) have been cup jointed in the bottom activity of hoist device (11), bearing device (13) have been cup jointed in tilting device (12) both sides activity, base (1) top has been seted up on the position that is located support frame (2) one side and has been aimed at hole (14), fixed mounting has adjusting device (15) on the position that base (1) top is located and aims at hole (14) one side, adjusting device (15) and tilting device (12) fixed connection.
2. The hot dry rock directional injection and production equipment as claimed in claim 1, wherein: hoisting device (11) is including connecting plate (111), the quantity of connecting plate (111) is two and fixed mounting is in support frame (2) one side, is located the position of mount pad (9) both sides, one side fixed mounting of connecting plate (111) has hoist and mount frame (112), the inside activity of hoist and mount frame (112) has cup jointed traction sleeve (113), one side fixed mounting of hoist and mount frame (112) surface has engine II (114), the one end of engine II (114) output shaft and the one end fixed connection who pulls sleeve (113), the one end fixedly connected with hoist and mount seat (115) of engine II (114) haulage rope, the bottom fixed mounting of connecting plate (111) has mounting panel (116), mounting panel (116) one side fixed mounting has slide rail (117), mounting panel (116) one side has base (118) through slide rail (117) movable mounting, the bottom fixed mounting of base (118) has fixing base (119), the inside fixed cup joint of fixing base (119) has bearing (1101), the fixed tilting device (12) that has cup jointed in inside of bearing (1101) inner circle.
3. The hot dry rock directional injection and production equipment as claimed in claim 2, wherein: the inclined device (12) comprises a rotating rod (121), mounting grooves (122) are formed in two sides of the outer surface of the rotating rod (121), a telescopic machine (123) is fixedly mounted inside the mounting grooves (122), a stroke stopping sleeve (124) is sleeved on the outer surface of an output shaft of the telescopic machine (123), a connecting plate rotating seat (125) is movably sleeved on a position, above the stroke stopping sleeve (124), of the outer surface of the output shaft of the telescopic machine (123), a stroke stopping plate (126) is fixedly mounted on a position, below the mounting grooves (122), of two sides of the outer surface of the rotating rod (121), the stroke stopping plate (126) is in contact with a bearing device (13), the bottom of the rotating rod (121) is fixedly connected with an adjusting device (15), a rotating top seat (127) is fixedly sleeved on a position, close to the top, of the outer surface of the rotating rod (121), and the bearing device (13) is movably sleeved at two ends of the rotating top seat (127), the top of rotary rod (121) is fixed with universal connecting shaft (128), the top of universal connecting shaft (128) and the inner ring of bearing (1101) are fixedly sleeved.
4. The hot dry rock directional injection and production equipment as claimed in claim 3, wherein: the axis of the rotating rod (121) and the top of the base (1) are kept in an inclined state.
5. The hot dry rock directional injection and production equipment as claimed in claim 3, wherein: bear device (13) including hang plate (131), the top fixed mounting of hang plate (131) has axis of rotation (132), fixed mounting has bearing bottom plate (133) on the position that hang plate (131) one side is close to the bottom, fixed mounting has bearing side plate (134) on the position that hang plate (131) one side is located bearing bottom plate (133) top, V type groove has been seted up to one side that bears side plate (134), the opposite side activity of bearing side plate (134) has cup jointed and has rotated even board (135), the one end of rotating even board (135) and even board rotation seat (125) activity cup joint.
6. The hot dry rock directional injection and production equipment as claimed in claim 3, wherein: the adjusting device (15) comprises an adjusting seat (151), a screw rod (152) is sleeved inside the adjusting seat (151) in a movable mode, an adjusting machine (153) is fixedly installed at one end of the outer surface of the adjusting seat (151), one end of an output shaft of the adjusting machine (153) is fixedly connected with the screw rod (152), a swinging seat (154) is sleeved on the outer surface of the screw rod (152) through threads, a power machine III (155) is sleeved on the top of the swinging seat (154) in a movable mode, and one end of the output shaft of the power machine III (155) is fixedly connected with the bottom of a rotating rod (121).
7. A development method of hot dry rock directional injection and production equipment is characterized by comprising the following steps:
s1: on the basis of data analysis, geological survey, geophysical exploration, drilling and the like, selecting a high-temperature hot dry rock stratum with the temperature reaching 180 ℃ as a target layer, then comprehensively predicting and evaluating the lithology, the primary fracture parameters, the permeability and the like of the target layer, selecting a region with relatively developed primary fracture and relatively high permeability, and further determining the spatial position of a deep target area for directional injection and extraction of hot dry rock and the primary fracture parameters, namely delineating a geological dessert;
s2: designing a well bore track of a first directional well according to the 'geological dessert' parameters, then constructing the first directional well, wherein the well bore track of the first directional well enters the 'geological dessert' and is approximately orthogonal to the main primary fracture surface of the hot dry rock, and the bottom of the well bore is close to or penetrates through the lower part of the 'geological dessert';
s3: in the drilling process, a power machine II (114) drives a traction sleeve (113) to rotate and release a hoisting seat (115), the hoisting seat (115) is connected with a drill rod (8) in a manual mode, the drill rod (8) is driven to hoist by the power machine II (114), the drill rod (8) is placed on a bearing bottom plate (133), and meanwhile, the drill rod (8) is matched with a V-shaped groove on one side of a bearing side plate (134) in an inclined mode, so that the drill rod (8) is fixed relatively firmly;
s4: after the stroke machine (4), the stroke plate (5), the power machine I (6) and the clamping pipe (7) finish drilling of the drill rod, the power machine III (155) drives the rotating rod (121) to rotate by one hundred eighty degrees, the drill rod which just finishes hoisting is rotated to the position where the clamping pipe (7) and the aligning hole (14) are aligned, at the moment, the stroke machine (4) and the power machine I (6) are started, and the clamping pipe (7) is clamped with the drill rod (8) at the position;
s5: after the clamping connection pipe (7) and the drill rod (8) are clamped, the telescopic machine (123) starts to operate and extends outwards, the stop sleeve (124) is driven to move along the direction of an output shaft of the telescopic machine (123), and the connecting plate rotating seat (125) is pushed to reset, so that the bearing device (13) is reset to be in a state parallel to the axis of the rotating rod (121), the bearing bottom plate (133) is separated from the bottom of the drill rod (8), the drilling operation is started at the moment, and the bearing device (13) on the other side synchronously carries out drill rod hoisting operation in the same step while drilling;
s6: reservoir excitation is carried out in a geological dessert of the hot dry rock through a shaft channel established by a first directional well, an artificial fracture area, namely an engineering dessert, is formed after the reservoir excitation, the reservoir excitation effect is observed and evaluated through means such as micro-seismic, an electromagnetic method and well logging, and the spatial position and range of the engineering dessert in the artificial fracture area and artificial fracture parameters are obtained;
s7: designing a well bore track of a second directional well according to the 'engineering sweet spot' parameter, and then constructing the second directional well, wherein the second directional well track is drilled into the 'engineering sweet spot' at one side far away from the well bore of the first directional well, and the well bore of the second directional well is approximately orthogonal to the main artificial crack surface in the 'engineering sweet spot';
s8: injecting heat exchange fluid into the ground by using a first directional well of injection equipment, exchanging heat of the heat exchange fluid through cracks in the hot dry rock geological dessert and the engineering dessert, and extracting the heated heat exchange fluid through a second directional well to return to the ground to form circulation;
s9: after the temperature and the flow of the extracted heat exchange fluid reach stability, the heat extraction and utilization device is installed, and the efficient and stable utilization of the heat energy of the hot dry rock is realized.
8. The hot dry rock directional injection and production equipment according to claim 7, characterized in that: the reservoir excitation mode comprises hydraulic excitation, thermal excitation, chemical excitation or combination excitation of the hydraulic excitation, the thermal excitation and the chemical excitation.
9. The hot dry rock directional injection and production equipment according to claim 7, characterized in that: the number of the directional wells can be more than 2, the diameter of a final hole forming well mouth is not less than 215.9mm, and the hot dry rock heat energy extraction and utilization device is an organic Rankine cycle power generation device.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1175643A (en) * | 1967-03-01 | 1969-12-23 | Watson Mfg Company | Universally Mounted Drilling Mast |
| JP2003336474A (en) * | 2002-05-22 | 2003-11-28 | Technical Earth System Co Ltd | Drilling method for earthing hole and drilling rig used therefor |
| US20070223999A1 (en) * | 2004-06-23 | 2007-09-27 | Terrawatt Holdings Corporation | Method of Developing and Producing Deep Geothermal Reservoirs |
| CN105064915A (en) * | 2015-07-27 | 2015-11-18 | 王乐康 | Fully hydraulic reverse circulation drilling machine |
| CN109577886A (en) * | 2018-10-23 | 2019-04-05 | 中煤科工集团西安研究院有限公司 | It is a kind of suitable for underground coal mine drilling machine automatic plus to unload lever apparatus |
| CN208981950U (en) * | 2018-07-05 | 2019-06-14 | 上海兰石重工机械有限公司 | A kind of drilling machine top-drive drilling |
| CN110006185A (en) * | 2019-04-18 | 2019-07-12 | 重庆科技学院 | Dry-hot-rock geothermal recovery method |
| CN112081532A (en) * | 2020-10-19 | 2020-12-15 | 李海潮 | Quick replacement device for drill rod of well drilling machine |
| US20210010718A1 (en) * | 2019-01-12 | 2021-01-14 | Mechsofttechnology (U.S.A.) Co., Llc | Geothermal development system and the construction method thereof |
| CN112360364A (en) * | 2020-11-03 | 2021-02-12 | 淮北林光钻探机电工程有限公司 | Automatic discharging device for drilling drill rods |
-
2022
- 2022-03-31 CN CN202210337298.XA patent/CN114622890B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1175643A (en) * | 1967-03-01 | 1969-12-23 | Watson Mfg Company | Universally Mounted Drilling Mast |
| JP2003336474A (en) * | 2002-05-22 | 2003-11-28 | Technical Earth System Co Ltd | Drilling method for earthing hole and drilling rig used therefor |
| US20070223999A1 (en) * | 2004-06-23 | 2007-09-27 | Terrawatt Holdings Corporation | Method of Developing and Producing Deep Geothermal Reservoirs |
| CN105064915A (en) * | 2015-07-27 | 2015-11-18 | 王乐康 | Fully hydraulic reverse circulation drilling machine |
| CN208981950U (en) * | 2018-07-05 | 2019-06-14 | 上海兰石重工机械有限公司 | A kind of drilling machine top-drive drilling |
| CN109577886A (en) * | 2018-10-23 | 2019-04-05 | 中煤科工集团西安研究院有限公司 | It is a kind of suitable for underground coal mine drilling machine automatic plus to unload lever apparatus |
| US20210010718A1 (en) * | 2019-01-12 | 2021-01-14 | Mechsofttechnology (U.S.A.) Co., Llc | Geothermal development system and the construction method thereof |
| CN110006185A (en) * | 2019-04-18 | 2019-07-12 | 重庆科技学院 | Dry-hot-rock geothermal recovery method |
| CN112081532A (en) * | 2020-10-19 | 2020-12-15 | 李海潮 | Quick replacement device for drill rod of well drilling machine |
| CN112360364A (en) * | 2020-11-03 | 2021-02-12 | 淮北林光钻探机电工程有限公司 | Automatic discharging device for drilling drill rods |
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