CN115324509A - Shale gas water-based drilling cutting leaching desalting device and desalting method - Google Patents
Shale gas water-based drilling cutting leaching desalting device and desalting method Download PDFInfo
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- CN115324509A CN115324509A CN202210783267.7A CN202210783267A CN115324509A CN 115324509 A CN115324509 A CN 115324509A CN 202210783267 A CN202210783267 A CN 202210783267A CN 115324509 A CN115324509 A CN 115324509A
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- 238000005520 cutting process Methods 0.000 title claims abstract description 137
- 238000011033 desalting Methods 0.000 title claims abstract description 82
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000002386 leaching Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000005553 drilling Methods 0.000 title description 45
- 239000007921 spray Substances 0.000 claims abstract description 18
- 238000003860 storage Methods 0.000 claims abstract description 12
- 238000010612 desalination reaction Methods 0.000 claims description 26
- 230000000979 retarding effect Effects 0.000 claims description 25
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
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- 230000007423 decrease Effects 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 17
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- 239000012530 fluid Substances 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000002910 solid waste Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
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- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 2
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- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
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- 238000001914 filtration Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
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Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
- E21B21/066—Separating solids from drilling fluids with further treatment of the solids, e.g. for disposal
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
Abstract
The invention discloses a shale gas water-based drill chip leaching desalting device and a desalting method, wherein the desalting device comprises a desalting tank, a plurality of step platforms with sequentially reduced heights are arranged in the desalting tank, a speed-reducing plate is arranged at the top of each step platform, the height of the upper surface of each step platform and the height of each speed-reducing plate are gradually reduced towards the direction of the next step platform, the gradient of each speed-reducing plate is smaller than that of the upper surface of each step platform, two sides of each speed-reducing plate are rotatably connected with the side tank walls of the desalting tank through support shafts, torsion springs are sleeved on the outer sides of the support shafts, a plurality of concave surface grooves are arranged at the lower positions of the upper surface of each speed-reducing plate at intervals, spray pipes are arranged at the tops of the desalting tanks, and a plurality of spray heads are arranged at the bottoms of the spray pipes; a storage box is arranged on one side of the top of the desalting tank, a discharge channel is arranged at the bottom of one side of the storage box, and a collecting device is arranged on the other side of the desalting tank; the invention increases the movement distance of the drill cuttings, increases the contact time of the drill cuttings and the leacheate and further improves the leaching and desalting effects.
Description
Technical Field
The invention belongs to the technical field of shale gas drilling solid waste desalination, and particularly relates to a shale gas water-based drilling cutting leaching desalination device and a desalination method.
Background
Shale gas is a novel industry, shale gas water-based drilling cuttings have great difference with conventional oil and gas field waste drilling mud, and the salt content of the shale gas water-based drilling cuttings is different due to different stratums, waste drilling mud or water-based drilling cuttings pretreatment processes and the like. In the past, the research mostly focuses on the influence of pollutants such as heavy metals and organic matters in the solid waste of the drilling well on the environment, and the harm of salt to the environment is less concerned. At present, few process technologies and devices for desalting the waste drilling mud are available, and the existing desalting technologies and devices are all used for desalting the waste drilling mud in the conventional oil and gas field by washing, filtering, squeezing and dewatering, and waste water salt is removed by using a process combining reverse osmosis and multi-effect climbing film evaporation; the method has no case of large-scale engineering application in China because of complicated process flow, long treatment period, high cost and the like.
When carrying out the washing desalination to solid waste, need mix the stirring to it to the efficiency of desalination is accelerated, the not only stirring that need last of this kind of mode increases the consumption of electric energy, simultaneously because the restriction of mucilage binding device power, the volume of single desalination is few, and after the desalination is accomplished, because its inside agitating unit's existence, can't take out the drill chip after the desalination fast, has increased the efficiency of desalination.
Therefore, it is necessary to invent a shale gas water-based drill cuttings leaching desalting device and a desalting method to solve the problems.
Disclosure of Invention
Aiming at the problems, the invention provides a shale gas water-based drilling cutting leaching desalting device and a desalting method, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a shale air water base drill chip drip washing demineralizer, includes the desalination groove, the desalination inslot is inside to be provided with a plurality of ladder platforms that highly reduce in proper order, every ladder platform top all is provided with the speed reducing plate, and the height of ladder platform upper surface and the height of speed reducing plate all diminish to the direction that next ladder platform was located gradually, and the slope of speed reducing plate is little than the slope of ladder platform upper surface, and the speed reducing plate both sides are connected with desalination groove side cell wall rotation through the back shaft, and back shaft outside cover is equipped with the torsional spring, the low level department interval of speed reducing plate upper surface is provided with a plurality of concave surface grooves, and the shower is installed at desalination groove top, and the shower bottom is provided with a plurality of shower heads; the desalting tank is characterized in that a storage tank is arranged on one side of the top of the desalting tank, a discharge channel is arranged at the bottom of one side of the storage tank, and a collecting device is arranged on the other side of the desalting tank.
Preferably, the retarder board both sides are rotated with back shaft one end and are connected, the back shaft other end and desalination groove side cell wall fixed connection, and the back shaft outside has cup jointed the torsional spring, and torsional spring one end is connected with the back shaft, and the torsional spring other end is connected with the retarder board.
Preferably, collection device includes the support frame, the support frame bottom is provided with the translation slide rail, and the translation slide rail is installed on the desalination groove lateral wall, the support frame top is provided with the hoist engine, and the rolling steel wire bottom of hoist engine is connected with the waterlogging caused by excessive rainfall basket, and the position of waterlogging caused by excessive rainfall basket ratio lowest ladder platform is low, desalination groove one side fixedly connected with owner colludes the board, the position department fixedly connected with that the waterlogging caused by excessive rainfall basket bottom is close to the ladder platform is assisted and is colluded the board.
Preferably, the top end of the upper surface of the step table is provided with an intermediate plate, the upper surface of the intermediate plate is parallel to the upper surface of the step table, the bottom of the intermediate plate is provided with a compression cylinder, a support spring is arranged in the compression cylinder, and the bottom of the compression cylinder is embedded into the step table.
Preferably, the top of the middle plate is fixedly connected with a plurality of groups of guide assemblies, each guide assembly comprises two guide plates, and the distance between the guide plates is gradually reduced towards one side close to the collecting device.
Preferably, concave surface tank bottom portion arches downwards, and arches the department and has seted up the arc draw-in groove, and the arc draw-in groove is the same with arches department crookedness, and arc draw-in groove inside is provided with rather than assorted spacing ball, spacing ball bottom fixedly connected with connecting rod, and the connecting rod bottom articulates there is the arc, the equal downwarping of arc front end and rear end.
Preferably, the support shaft is closer to one side of the speed-reducing plate away from the concave groove; the center of the bottom of the spray header is flush with the upturned edge of the top-most retarding plate.
Preferably, the bottom surface of the retarding plate is connected with a plurality of weighting rods, the weighting rods correspond to the spray headers one by one, umbrella caps are sleeved on the outer sides of the weighting rods, the bottoms of the umbrella caps are supported by return springs, and the bottom ends of the return springs are fixedly connected to the outer sides of the weighting rods.
Preferably, the concave surface grooves at the tops of the two adjacent speed-reducing plates are arranged in a staggered mode in the front-rear direction, and rubber protrusions are arranged at the bottoms of the inner sides of the concave surface grooves.
In addition, the invention also discloses a desalting method of the shale gas water-based drilling cutting leaching desalting device, which comprises the following steps:
the method comprises the following steps: before use, the drill cuttings are mechanically crushed, then the processed drill cuttings are lifted to a storage box through a spiral lifting machine, and then a discharging channel is opened to enable the drill cuttings to slide into a desalting tank;
step two: then, the drill cuttings sliding into the desalting tank slide down obliquely onto the retarding plate, the spraying pipe is connected with a circulating pump, the eluent at the bottommost part of the desalting tank is pumped circularly, and finally the eluent is sprayed out from the spraying head to carry out leaching and desalting on the passed drill cuttings;
step three: then the drill cuttings sequentially pass through each retarding plate, a part of the drill cuttings can enter the concave surface grooves, and after the concave surface grooves are filled with the drill cuttings, the retarding plates at the concave surface grooves at the corresponding positions can be pressed down, so that the retarding plates and the drill cuttings in the concave surface grooves are completely separated;
step four: then a large amount of drilling cuttings are hammered on the next speed buffer plate, so that the upturned end of the next speed buffer plate deflects downwards, and the drilling cuttings fall onto the middle plate corresponding to the bottom after sliding reversely;
step five: the drilling cuttings can be dispersed and then fall off from the surface of the step platform in sequence by falling to the middle plate, the umbrella cap and the arc-shaped plate;
step six: and finally, conveying the drill cuttings sliding from the surface of the buffer plate and the drill cuttings sliding from the surface of the step platform into a collecting device, taking the desalted drill cuttings out of the desalting tank by the collecting device, and dumping the drill cuttings out to complete the desalting treatment of the drill cuttings.
The invention has the technical effects and advantages that:
1. according to the invention, through the action of the buffer plates, the concave grooves on the surfaces of the buffer plates and the step platforms, when drilling cuttings slide down on the surfaces of a plurality of buffer plates, the movement speed of the leacheate and the drilling cuttings is different, and the movement difference exists between the leacheate and the drilling cuttings, so that stirring is not needed, the leacheate sliding down from the step platforms can have a strong scouring effect on the drilling cuttings sliding down from the surfaces of the buffer plates, the desalting effect is improved, and after the concave grooves are filled with the drilling cuttings, the buffer plates at the concave grooves can be pressed down, so that the drilling cuttings in the buffer plates and the concave grooves are completely separated, a large number of drilling cuttings are knocked down on the next buffer plate, and the warped end of the next buffer plate deflects downwards, so that the drilling cuttings fall onto the step platform corresponding to the bottom after reversely sliding, the movement distance of the drilling cuttings is increased, namely the contact time of the drilling cuttings and the leacheate is increased, and the leaching effect is further improved;
2. according to the invention, the middle plate is extruded by the drill cuttings which slide in the direction and fall, so that the middle plate moves downwards, the supporting spring is compressed, the drill cuttings falling on the middle plate slide down gradually, after the drill cuttings do not fall above, the drill cuttings on the middle plate are reduced gradually, at the moment, the supporting spring pushes the middle plate to ascend, the distance between the drill cuttings which subsequently slide down from the middle plate and the drill cuttings which previously slide down is gradually increased, and the drill cuttings are prevented from being accumulated, so that the contact effect between the leacheate and the drill cuttings is increased, the desalting effect is improved, and the effect of the guide assembly is matched, so that the integral time of the drill cuttings sliding down from the middle plate can be prolonged, and the drill cuttings are further prevented from being accumulated;
3. according to the invention, through the arrangement of the arc-shaped plate, when the upwarping end of the retarding plate is deflected to the original position again, the arc-shaped plate moves downwards to play a role of pressing drilling cuttings which slip from the middle plate in the early period and are not influenced by the guide plate, and the drilling cuttings which are pressed by the arc-shaped plate are separated from the drilling cuttings which are not pressed by the arc-shaped plate, so that the drilling cuttings which slip in the early period can be dispersed, and the guide plate plays a role of dispersing the drilling cuttings which slip in the later period, so that the accumulated drilling cuttings can be completely separated, and larger drilling cuttings directly bounce upwards through the step platform and impact on the connecting rod, the impact force during rebounding can directly push the connecting rod to move to drive the limiting ball to move in the arc-shaped clamping groove, and the drilling cuttings are separated from the connecting rod after the rebound force disappears, so that the contact time of the connecting rod and the drilling cuttings is prolonged, a better force unloading effect is achieved, so that the initial speed of the drilling cuttings dropping again is reduced, the movement time on the step platform is prolonged, and the desalting effect is improved.
Drawings
FIG. 1 is a schematic perspective view of a desalination apparatus according to the present invention;
FIG. 2 is a schematic sectional view of a desalting tank according to the present invention;
FIG. 3 is a schematic view of one of the angles of FIG. 2 in accordance with the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 3 according to the present invention;
FIG. 5 is a schematic view showing the positions of the tie bars and the retarder plate according to the present invention;
FIG. 6 is an enlarged view of the portion B of FIG. 5 according to the present invention;
FIG. 7 is a process flow diagram of the desalination process of the present invention.
In the figure: desalting tank 1, step platform 2, speed-reducing plate 3, back shaft 4, concave groove 5, shower pipe 6, shower head 7, deposit case 8, collection device 9, support frame 91, translation slide rail 92, hoist engine 93, draining basket 94, main board 95, supplementary board 96 that colludes, discharging channel 10, intermediate plate 11, compression section of thick bamboo 12, deflector 13, arc draw-in groove 14, spacing ball 15, connecting rod 16, arc 17, weight bar 18, umbrella hat 19, return spring 20, rubber bulge 21.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the present invention;
the invention provides a shale gas water-based drilling cuttings leaching and desalting device as shown in figures 1-6, which comprises a desalting tank 1, wherein a plurality of stepped platforms 2 with sequentially reduced heights are arranged in the desalting tank 1, the top of each stepped platform 2 is provided with a speed reducing plate 3, the heights of the upper surfaces of the stepped platforms 2 and the heights of the speed reducing plates 3 are gradually reduced towards the direction of the next stepped platform 2, the gradient of each speed reducing plate 3 is smaller than that of the upper surface of each stepped platform 2, two sides of each speed reducing plate 3 are rotatably connected with the side groove wall of the desalting tank 1 through support shafts 4, torsion springs are sleeved on the outer sides of the support shafts 4, a plurality of concave surface grooves 5 are arranged at intervals at the lower positions of the upper surfaces of the speed reducing plates 3, the top of the desalting tank 1 is provided with a spray pipe 6, and the bottom of each spray pipe 6 is provided with a plurality of spray heads 7; the desalting tank is characterized in that a storage box 8 is arranged on one side of the top of the desalting tank 1, a discharge channel 10 is arranged at the bottom of one side of the storage box 8, and a collecting device 9 is arranged on the other side of the desalting tank 1.
Preferably, 3 both sides of slow plate are rotated with 4 one ends of back shaft and are connected, and the 4 other ends of back shaft and 1 side slot wall fixed connection in desalination groove, and the back shaft 4 outside has cup jointed the torsional spring, and torsional spring one end is connected with back shaft 4, and the torsional spring other end is connected with slow plate 3.
In the technical scheme, the drill cuttings can be placed in the storage box 8, then the drill cuttings slide down to the speed-reducing plate 3 in an inclined manner from the discharge channel 10, the spray pipe 6 is externally connected with a circulating pump, the eluent at the bottommost part of the desalting tank 1 is circularly pumped, the eluent is finally sprayed out from the spray head 7, one part of the sprayed eluent can be sprayed on the speed-reducing plate 3 and is used for eluting and desalting the drill cuttings, the friction force between the drill cuttings and the speed-reducing plate 3 is larger, so that the eluent can slide down faster than the drill cuttings, the other part of the eluent sprayed out from the spray head 7 can directly fall onto the step platform 2 and flows downwards along the step platform 2, when the drill cuttings slide out from the top of the step platform 2, the drill cuttings sliding from the top of the speed-reducing plate 3 can be washed by the eluent flowing down from the top of the step platform 2, and when the subsequent eluent falls onto one speed-reducing plate 3, the drill cuttings can be continuously eluted onto the speed-reducing plate 3; meanwhile, after the drill cuttings slide to the edge of the speed buffer plate 3, a part of the drill cuttings enter the concave groove 5, and the other part of the drill cuttings directly slide from the speed buffer plate 3, so that the probability of separating the drill cuttings is increased, the contact area of the leacheate and the drill cuttings is increased, and the desalting effect is improved.
Preferably, the collecting device 9 includes a supporting frame 91, a translational slide rail 92 is arranged at the bottom of the supporting frame 91, the translational slide rail 92 is installed on the outer side wall of the desalting tank 1, a winding machine 93 is arranged at the top of the supporting frame 91, a draining basket 94 is connected to the bottom of a winding steel wire of the winding machine 93, the draining basket 94 is lower than the lowest step platform 2, a main hook plate 95 is fixedly connected to one side of the desalting tank 1, and an auxiliary hook plate 96 is fixedly connected to the position of the bottom of the draining basket 94 close to the step platform 2. When the draining basket 94 contains drill cuttings, the height of the bottom of the inner side of the draining basket 94 is low in the middle, two sides of the draining basket 94 are high, and the auxiliary hook plate 96 is arranged on one side, close to the step platform 2, of the draining basket 94, one end, close to the step platform 2, of the draining basket 94 is high, the drill cuttings falling from the step platform 2 fall into the draining basket 94, and can be gradually far away from the step platform 2, so that gathering near the step platform 2 is prevented, the draining basket 94 is gradually paved by the drill cuttings, finally, the draining basket 94 is lifted by the winch 93 in the process, the draining basket 94 is released again, the actions are repeated, the drill cuttings in the draining basket 94 and the leaching liquid at the bottom are in contact and separated for multiple times, the desalting effect is improved, finally, the draining basket 94 is moved out of the desalting tank 1 through the translation slide rail 92, when the auxiliary hook plate 96 is aligned with the main hook plate 95, the draining basket 94 is 94, the draining basket 94 is quickly dropped, and the draining process is convenient.
Preferably, an intermediate plate 11 is arranged at the top end of the upper surface of the step platform 2, the upper surface of the intermediate plate 11 is parallel to the upper surface of the step platform 2, a compression cylinder 12 is arranged at the bottom of the intermediate plate 11, a support spring is arranged inside the compression cylinder 12, and the bottom of the compression cylinder 12 is embedded into the step platform 2. After the drill chip that flows back from 3 surperficial reverse refluxes of slowly-accelerating board falls on intermediate lamella 11, can extrude intermediate lamella 11, thereby make intermediate lamella 11 move down, make the supporting spring compression, the drill chip that drops on intermediate lamella 11 landing gradually, after the drill chip that no longer drops in the top, the drill chip on intermediate lamella 11 reduces gradually, supporting spring promotes intermediate lamella 11 and rises this moment, can make follow-up drill chip of landing and the interval grow gradually of the drill chip of preceding landing on the intermediate lamella 11, prevent that the drill chip from gathering, thereby increase the contact effect between leacheate and the drill chip, the desalination effect is improved.
Preferably, a plurality of sets of guide assemblies are fixedly connected to the top of the middle plate 11, each guide assembly includes two guide plates 13, and the distance between the guide plates 13 gradually decreases toward the side close to the collecting device 9. The two guide plates 13 in the same guide assembly can block the drill cuttings, and the distance between the guide plates 13 is gradually reduced towards one side close to the collecting device 9, so that the amount of the drill cuttings sliding off the intermediate plate 11 is reduced, the whole time of the drill cuttings sliding off the intermediate plate 11 can be prolonged, and the drill cuttings are further prevented from being accumulated.
Preferably, 5 bottoms of concave surface groove arch downwards, and arch department has seted up arc draw-in groove 14, and arc draw-in groove 14 is the same with arch department crookedness, and arc draw-in groove 14 is inside to be provided with rather than assorted spacing ball 15, spacing ball 15 bottom fixedly connected with connecting rod 16, and 16 bottom hinges have an arc 17, and arc 17 front end and rear end are all downwarping. When the guide plate 13 is full of drill cuttings, the drill cuttings falling again cannot be blocked by the guide plate 13, and firstly fall in large batch, so that through the arrangement of the arc-shaped plate 17, after one tilted end of the speed-reducing plate 3 is impacted by the drill cuttings falling from a brain in the concave groove 5 above and deflects downwards, the other end of the speed-reducing plate 3 deflects upwards, and meanwhile, the arc-shaped plate 17 at the bottom ends of the connecting rod 16 and the connecting rod 16 are driven to ascend, when the firstly fallen drill cuttings in large batch move to the bottom of the arc-shaped plate 17, the drill cuttings on the surface of the speed-reducing plate 3 drop completely, the speed-reducing plate 3 returns to return the arc-shaped plate 17, namely, the arc-shaped plate 17 moves downwards to press down the drill cuttings which fall earlier from the middle plate 11 and are not influenced by the guide plate 13, the drill cuttings pressed by the arc-shaped plate 17 are separated from the drill cuttings which are not pressed by the arc-shaped plate 17, so that the early-falling drill cuttings can be dispersed, and the guide plate 13 can disperse the accumulated drill cuttings completely; and connecting rod 16 can drive spacing ball 15 and remove in arc draw-in groove 14, when great drill chip is direct to bounce-back and strike on connecting rod 16 through step platform 2 slant upwards, impact during the bounce-back can directly promote connecting rod 16 and remove, drive spacing ball 15 and remove in arc draw-in groove 14, after bounce-back disappears, the drill chip just separates with connecting rod 16, thereby increase the time of connecting rod 16 and drill chip contact, there is better effect of unloading to the drill chip of bounce-back, thereby reduce the initial speed when drill chip falls once more, increase the time of drill chip motion on step platform 2, improve the desalination effect.
Preferably, the support shaft 4 is closer to the side of the speed bump 3 away from the concave groove 5; the center of the bottom of the spray header 7 is flush with the upturned edge of the top retarding plate 3. Above-mentioned setting can be full of the drill chip in concave surface groove 5 after, the arm of force of back shaft 4 to concave surface groove 5 department is bigger to 3 bottoms pushes down of slow-down board that can be quick, make the drill chip in concave surface groove 5 push down fast.
Preferably, the bottom surface of the retarding plate 3 is connected with a plurality of weighting rods 18, the weighting rods 18 correspond to the spray headers 7 one by one, umbrella caps 19 are sleeved on the outer sides of the weighting rods 18, the bottoms of the umbrella caps 19 are supported by return springs 20, and the bottom ends of the return springs 20 are fixedly connected to the outer sides of the weighting rods 18. When pushing down the perk end of slowly-releasing board 3, on the drill chip fell intermediate plate 11, when rebounding from intermediate plate 11 and dropping, can drop on umbrella cap 19, umbrella cap 19 can play the dispersion to the drill chip to further improve dispersion, and because return spring 20's existence, umbrella cap 19 can compress return spring 20, when return spring 20 recovers, can promote the drill chip at umbrella cap 19 top and shift up, increase the interval distance between the drill chip, prevent that the drill chip from piling up.
Preferably, the concave grooves 5 at the tops of two adjacent speed-reducing plates 3 are arranged in a staggered manner in the front-back direction, and the bottom of the inner side of each concave groove 5 is provided with a rubber bulge 21. After the concave surface grooves 5 on the adjacent retardation plates 3 are arranged in a staggered manner, after being intercepted by the concave surface grooves 5 for the first time, when the drilling fluid drops onto the next retardation plate 3, the probability that the drilling fluid is intercepted by the concave surface grooves 5 on the next retardation plate 3 can be obviously reduced, so that the interception times of each drilling fluid by the concave surface grooves 5 on the plurality of retardation plates 3 are the same, and the whole desalting effect of each drilling fluid is ensured.
In addition, the embodiment also discloses a desalting method of the shale gas water-based drilling cutting leaching desalting device, which comprises the following steps:
the method comprises the following steps: before use, the drill cuttings are mechanically crushed to enable the diameter of the drill cuttings to be smaller than 2cm, then the processed drill cuttings are lifted to a storage box 8 through a spiral lifting machine, and then a discharging channel 10 is opened to enable the drill cuttings to slide into a desalting tank 1;
step two: then, the drill cuttings sliding into the desalting tank 1 slide down obliquely onto the retarding plate 3, the spraying pipe 6 is externally connected with a circulating pump, the leacheate at the bottommost part of the desalting tank 1 is pumped circularly, and finally the leacheate is sprayed out from the spraying head 7 to leach and desalt the passing drill cuttings;
step three: then the drill cuttings sequentially pass through each retarding plate 3, a part of the drill cuttings can enter the concave groove 5, and after the concave groove 5 is filled with the drill cuttings, the retarding plate 3 at the concave groove 5 at the corresponding position can be pressed down, so that the drill cuttings in the retarding plate 3 and the concave groove 5 are completely separated;
step four: then a large amount of drilling cuttings are hammered on the next speed buffer plate 3, so that the upturned end of the next speed buffer plate 3 deflects downwards, and the drilling cuttings fall onto the middle plate 11 corresponding to the bottom after sliding reversely;
step five: the drill cuttings falling onto the middle plate 11 pass through the guide plate 13, the umbrella cap 19 and the arc-shaped plate 17, so that the drill cuttings can be dispersed and then sequentially fall off from the surface of the step platform 2;
step six: finally, the drill cuttings sliding off from the surface of the speed-reducing plate 3 and the drill cuttings sliding off from the surface of the step platform 2 enter a collecting device 9, the collecting device 9 takes the desalted drill cuttings out of the desalting tank 1 and pours the drill cuttings out, and the desalting treatment of the drill cuttings is completed.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a shale gas water base drill chip drip washing desalination device, includes desalination groove (1), its characterized in that: the desalting tank is characterized in that a plurality of height-sequentially-reduced step platforms (2) are arranged inside the desalting tank (1), each step platform (2) is provided with a retarding plate (3) at the top, the height of the upper surface of each step platform (2) and the height of each retarding plate (3) gradually decrease towards the direction of the next step platform (2), the gradient of each retarding plate (3) is smaller than that of the upper surface of each step platform (2), two sides of each retarding plate (3) are rotatably connected with the side tank wall of the desalting tank (1) through supporting shafts (4), torsion springs are sleeved on the outer sides of the supporting shafts (4), a plurality of concave surface grooves (5) are arranged at intervals at the low positions of the upper surface of each retarding plate (3), spray pipes (6) are installed at the top of the desalting tank (1), and a plurality of spray heads (7) are arranged at the bottoms of the spray pipes (6); the desalting tank is characterized in that a storage box (8) is arranged on one side of the top of the desalting tank (1), a discharge channel (10) is arranged at the bottom of one side of the storage box (8), and a collecting device (9) is arranged on the other side of the desalting tank (1).
2. The shale gas water-based drill cuttings leaching and desalting device of claim 1, which is characterized in that: the slow plate (3) both sides are rotated with back shaft (4) one end and are connected, back shaft (4) other end and desalination groove (1) side groove wall fixed connection, and the back shaft (4) outside has cup jointed the torsional spring, and torsional spring one end is connected with back shaft (4), and the torsional spring other end is connected with slow plate (3).
3. The shale gas water-based drill cuttings leaching and desalting device of claim 1, which is characterized in that: collection device (9) are including support frame (91), support frame (91) bottom is provided with translation slide rail (92), and translation slide rail (92) are installed on desalination groove (1) lateral wall, support frame (91) top is provided with hoist engine (93), and the rolling steel wire bottom of hoist engine (93) is connected with waterlogging caused by excessive rainfall basket (94), and waterlogging caused by excessive rainfall basket (94) are lower than the position of lowest department's ladder platform (2), desalination groove (1) one side fixedly connected with owner colludes board (95), position department fixedly connected with that waterlogging caused by excessive rainfall basket (94) bottom is close to ladder platform (2) is assisted and is colluded board (96).
4. The shale gas water-based drill cuttings leaching and desalting device of claim 1, which is characterized in that: the top end of the upper surface of the stair platform (2) is provided with an intermediate plate (11), the upper surface of the intermediate plate (11) is parallel to the upper surface of the stair platform (2), the bottom of the intermediate plate (11) is provided with a compression cylinder (12), a supporting spring is arranged inside the compression cylinder (12), and the bottom of the compression cylinder (12) is embedded into the stair platform (2).
5. The shale gas water-based drill cuttings leaching and desalting device of claim 3, wherein: middle plate (11) top fixedly connected with multiunit direction subassembly, the direction subassembly includes two deflector (13), and the interval of deflector (13) diminishes to the one side that is close to collection device (9) gradually.
6. The shale gas water-based drill cuttings leaching and desalting device of claim 1, which is characterized in that: concave surface groove (5) bottom arches downwards, and arches and has offered arc draw-in groove (14), and arc draw-in groove (14) are the same with arches crookedness, arc draw-in groove (14) inside be provided with rather than assorted spacing ball (15), spacing ball (15) bottom fixedly connected with connecting rod (16), connecting rod (16) bottom articulates there is arc (17), arc (17) front end and the equal downwarping in rear end.
7. The shale gas water-based cuttings leaching and desalting device of claim 1, wherein: the supporting shaft (4) is closer to one side of the retarding plate (3) far away from the concave groove (5); the center of the bottom of the spray header (7) is flush with the upturned edge of the top-most retarding plate (3).
8. The shale gas water-based drill cuttings leaching and desalting device of claim 1, which is characterized in that: the bottom surface of the retarding plate (3) is connected with a plurality of weighting rods (18), the weighting rods (18) correspond to the spray headers (7) one by one, umbrella caps (19) are sleeved on the outer sides of the weighting rods (18), the bottoms of the umbrella caps (19) are supported through return springs (20), and the bottom ends of the return springs (20) are fixedly connected to the outer sides of the weighting rods (18).
9. The shale gas water-based cuttings leaching and desalting device of claim 7, wherein: concave surface grooves (5) at the tops of two adjacent speed-reducing plates (3) are arranged in a staggered mode in the front-back direction, and rubber protrusions (21) are arranged at the bottoms of the inner sides of the concave surface grooves (5).
10. A method for desalting the shale gas water-based cuttings leaching and desalting plant of any one of claims 1 to 9, wherein the method comprises the following steps: it comprises the following steps:
the method comprises the following steps: before use, the drill cuttings are mechanically crushed, then the processed drill cuttings are lifted to a storage box (8) through a spiral lifting machine, and then a discharging channel (10) is opened to enable the drill cuttings to slide into a desalting tank (1);
step two: then, the drill cuttings sliding into the desalting tank (1) slide downwards in an inclined mode to fall onto the retarding plate (3), the spraying pipe (6) is externally connected with a circulating pump, the leacheate at the bottommost part of the desalting tank (1) is pumped in a circulating mode, the leacheate is finally sprayed out from the spraying head (7), and the passing drill cuttings are leached and desalted;
step three: then the drill cuttings sequentially pass through each retarding plate (3), a part of the drill cuttings can enter the concave groove (5), and after the concave groove (5) is filled with the drill cuttings, the retarding plate (3) at the concave groove (5) at the corresponding position can be pressed down, so that the drill cuttings in the retarding plate (3) and the concave groove (5) are completely separated;
step four: then a large amount of drill cuttings are hammered on the next speed-reducing plate (3) to cause the upturned end of the next speed-reducing plate (3) to deflect downwards, so that the drill cuttings fall onto the middle plate (11) corresponding to the bottom after sliding reversely;
step five: the drill cuttings falling onto the middle plate (11) pass through the guide plate (13), the umbrella cap (19) and the arc-shaped plate (17), so that the drill cuttings can be dispersed and then sequentially fall off from the surface of the step platform (2);
step six: finally, the drill cuttings sliding off from the surface of the speed-reducing plate (3) and the drill cuttings sliding off from the surface of the step platform (2) enter a collecting device (9), and the collecting device (9) brings the desalted drill cuttings out of the desalting tank (1) and dumps out the drill cuttings to complete the desalting treatment of the drill cuttings.
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| CN202210783267.7A CN115324509B (en) | 2022-07-05 | 2022-07-05 | Shale gas water-based drilling cuttings leaching and desalting device and desalting method |
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