CN209129597U - Mounting rack for drilling circulation simulated experiment - Google Patents

Abstract

The utility model discloses a kind of mounting racks for drilling circulation simulated experiment, pedestal including plate-like structure, pedestal has the wellbore support component and drill steel support component set gradually along its length, wherein wellbore support component includes at least two blocks wellbore support plates along the setting of base length direction, with the pit shaft perforation of face setting on wellbore support plate, drill steel support component includes the fixed plate that at least two pieces of edges are arranged along base length direction, wherein the position for corresponding to pit shaft perforation in one piece of fixed plate adjacent with wellbore support component is perforated equipped with drilling rod；Driving device is configured on pedestal, driving device is used for the driving simulation drill string in experiment and moves and/or drive simulation drill string rotation along the length direction of simulation wellbore hole.It can be used in a variety of drilling simulation experiments, the dynamic analog especially to the various state of cyclic operation of drilling well annular space, convenient for observation Annular Cuttings movement speed, landwaste distribution situation, structure is simple, is easy to implement, and produces and easy to assembly quick.

Description

Mounting rack for drilling circulation simulated experiment

Technical field

The utility model belongs to drilling simulation technical field, and in particular to a kind of installation for drilling circulation simulated experiment Frame.

Background technique

It is all to influence to bore that the parameters relationship of annular space drilling fluid and landwaste in drilling process, shaft bottom sand washing and landwaste, which are returned and had troubles, An important factor for into speed, the performance of drilling fluid is direct key factor again, especially in air-filling well-drilling, the property of drilling fluid Energy parameter such as density, viscosity etc. is the landwaste dynamic for being codetermined by liquid and aeration quantity, therefore being more difficult control shaft bottom and annular space, Do not know the degree of purification of wellbore, in the prior art, there are also the equipment of simulation Cutting movement, mainly using simulation wellbore hole and The mode of drill string is simulated, but structure is complicated mostly, higher cost, and usually analog form is single, is only used for simulation drill string Single movement situation, have biggish limitation.

Utility model content

In order to solve the above technical problems, the utility model provides a kind of mounting rack for drilling circulation simulated experiment, It is mainly used for the support of simulation wellbore hole and simulation drill string in experiment, and realizes the simulation to drill string multi-motion situation, has wide General application range and good versatility.

To achieve the above object, technical solutions of the utility model are as follows:

A kind of mounting rack for drilling circulation simulated experiment, the pedestal including plate-like structure, the pedestal have edge The wellbore support component and drill steel support component that length direction is set gradually, wherein wellbore support component includes at least two pieces the bottom of along The wellbore support plate of seat length direction setting, with the pit shaft perforation of face setting on the wellbore support plate, the pit shaft is worn For installing simulation wellbore hole, drill steel support component includes the fixed plate that at least two pieces of edges are arranged along base length direction in hole, wherein The position that pit shaft perforation is corresponded in one piece of fixed plate adjacent with wellbore support component is perforated equipped with drilling rod, and the drilling rod perforation is used Drill string is simulated in installation；

Driving device is configured on the pedestal, the driving device is used for the driving in experiment and simulates drill string along simulation well The length direction of cylinder is mobile and/or driving simulation drill string rotates.

Using above scheme, it can be realized by wellbore support component and drill steel support component and simulation wellbore hole and simulation bored The support of column, and convenient for guarantee both coaxial arrangement and whole Transporting, while by driving device can drive simulation drill string into Row multi-motion.

As preferred: there is symmetrically arranged connecting rod, the connecting rod passes through all wells between the wellbore support plate Cylinder support plate, both ends are fixedly connected with corresponding wellbore support plate respectively.Using above scheme, wellbore support is advantageously ensured that The whole assembling of component guarantees mounting rack overall stability convenient for being fixedly connected again with pedestal after individually assembling.

As preferred: there are gaps between the fixed plate and adjacent wellbore support plate, and are fixedly connected by stud. Using above scheme, convenient for by the way that adjacent fixed plate to be fixedly connected with wellbore support plate, to realize wellbore support group Part is fixedly connected with drill steel support component, convenient for simulation drill string when experiment and simulation wellbore hole to positive operation, while further Guarantee the stability of mounting rack.

As preferred: the driving device includes transmission case, which is equipped with axially driving motor and rotation driving Motor has in transmission case by axially driving motor-driven gear, is symmetrically arranged with rack gear in the two sides of transmission case on pedestal, institute Wheel and rack engagement is stated, the rotary drive motor is arranged along the length direction of pedestal, and motor shaft is through transmission case out Antetheca.

Using the above structure, simplify drive mechanism, it is ensured that drill string can move axially simultaneously when rotated, and two kinds It moves non-interference, can preferably simulate actual well drilled scene, i.e., recycle dynamic, Nai Zhiqi during positive reaming, back reaming etc. Going down process drilling fluid agitates the influence to shaft bottom landwaste.

As preferred: there are two the fixed plates, has four symmetrically arranged guide cylinders between two fixed plates, The guide cylinder is arranged along the length direction of pedestal, and both ends are separately fixed in the fixed plate of face；

Also be movably set with two drill steel support plates between two fixed plates, two drill steel support plates simultaneously with four Guide cylinder is slidably matched, and the driving device is fixedly supported on two drill steel support plates.Using above scheme, advantageously ensure that The stability that drill string sliding gesture is simulated when experiment, reducing vibration influences, and prevents deflection.

As preferred: the rack gear both ends are separately fixed in two fixed plates, are had on the drill steel support plate and tooth The adaptable concave port of item.Using above scheme, it is ensured that stability when transmission case is mobile, it is ensured that inner teeth wheel and rack is nibbled The reliability at the position of conjunction, prevents transmission case from glancing off, and causes two sides movement asynchronous.

As preferred: it is equipped with sensors in place close to a drill steel support plate of wellbore support component, and close to well One fixed plate of cylinder support component is equipped with and the matched isolation of sensors in place.Using above scheme, by passing in place Sensor and isolation cooperation, can to simulation drill string Forward extreme position limit, prevent the fixed plate of transmission case and front end it Between collide.

As preferred: the base bottom has at least two support rollers being arranged in the width direction, the support roller Both ends are set with idler wheel.Using above scheme, it is easily installed fast moving for frame, saves power consumption.

Compared with prior art, the utility model has the beneficial effects that

Using the mounting rack provided by the utility model for drilling circulation simulated experiment, it is real to can be used for a variety of drilling simulations In testing, dynamic analog especially to the various state of cyclic operation of drilling well annular space, convenient for observation Annular Cuttings movement speed, landwaste distribution Situation, structure is simple, is easy to implement, and produces and easy to assembly quick.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is driving device structure schematic diagram；

Fig. 3 is the use state diagram of the utility model.

Specific embodiment

The utility model is described in further detail with attached drawing with reference to embodiments.

Referring to figs. 1 to Fig. 3, the mounting rack for drilling circulation simulated experiment of the utility model mainly includes section in work The pedestal 1 of font, pedestal 1 is horizontally disposed, is disposed with wellbore support component and drill steel support component along its length thereon, The two is used to support simulation wellbore hole and simulation drill string respectively in experiment, and the wellbore support component in the present embodiment mainly includes setting It sets on pedestal 1 and four pieces of support plates 17 distributed along its length, support plate 17 is rectangular steel plates structure, and in four pieces of branch Pit shaft with face setting on fagging 17 is perforated, and simulation wellbore hole used in experiment is then fixedly supported on branch by pit shaft perforation On fagging 17.

There is connecting rod 19 between four pieces of support plates 17, the quadrangle of support plate 17 is arranged in connecting rod 19, symmetrically Setting, every connecting rod 19 both pass through four pieces of support plates 17, and both ends support plate 17 corresponding with end is fixedly connected, logical in this way It crosses connecting rod 19 four pieces of support plates 17 are connected, the mode and 1 phase of pedestal being detachably connected can be used in 17 lower end of support plate Even, it is convenient for the independent assembling of wellbore support component in this way and is connected and fixed with the quick of pedestal 1.

Drill steel support component in the present embodiment mainly include two pieces along 1 length direction of pedestal setting fixed plates 16, two Block fixed plate 16 is located at the rear of wellbore support component, an one of close last support plate 17, and can pass through stud It is attached fixation with one piece of adjacent support plate 17, another piece of fixed plate 16 is then close to the rear end end of pedestal 1, fixed plate 16 The position of upper corresponding pit shaft perforation is perforated equipped with drilling rod, and drilling rod perforation is mainly used for stretching or withdrawal for drilling rod.

There are four guide cylinders 15 be arranged along 1 length direction of pedestal between two fixed plates 16, fixed plate 16 for The similar rectangular steel plates of support plate 17, four guide cylinders 15 then respectively correspond the quadrangle of fixed plate 16, in addition, in two fixed plates Two drill steel support plates 18 are additionally provided between 16, drill steel support plate 18 is set on guide cylinder 15, and is slidably matched with it.

Driving device 4 is also configured in the application on pedestal 1, driving device 4 is mainly used for the driving simulation in experiment and bores Column moves axially or rotary motion, or carries out two kinds of movements simultaneously, to achieve the purpose that abundant simulating actual conditions, such as Shown in figure, driving device 4 mainly includes transmission case 40, and transmission case 40 is located between two drill steel support plates 18, rear and front end It being fixedly connected respectively with drill steel support plate 18, transmission case 40 is equipped with axially driving motor 41 and rotary drive motor 42, wherein Axially driving motor 41 is vertically arranged, and motor shaft protrudes into transmission case 40, gear set is equipped with inside transmission case 40, gear set can To be directly to form side by side and along four gears of 1 width direction of pedestal setting, as shown in Fig. 2, including mainly along 1 length of pedestal Symmetrically arranged two end gears 43 in direction, and the transmission gear 44 and center tooth that are arranged between two end gears 43 Wheel 45, transmission gear 44 and intermediate gear 45 are intermeshed, and are engaged respectively with adjacent end gear 43, axially driving motor 41 motor shaft is fixedly connected with transmission gear 44, and when the work of axially driving motor 41, end gear 43 can keep direction phase Right, the side of end gear 43 is pierced by transmission case 40, is equipped with tooth along the length direction of guide cylinder 15 between two fixed plates 16 Item 12, the position of the corresponding 40 inner end gear 43 of transmission case of rack gear 12, end gear 43 be pierced by 40 shell of transmission case side wall it It is engaged afterwards with rack gear 12, when axially driving motor 41 works in this way, then can drive the whole length direction along pedestal 1 of transmission case 40 It slides back and forth, rotary drive motor 42 is arranged along the length direction of pedestal 1, and motor shaft runs through the antetheca of 40 shell of transmission case Afterwards, and through a drill steel support plate 18 of face.

The position that the left and right sides of drill steel support plate 18 corresponds to rack gear 12 is equipped with the concave port being adapted with rack gear 12 180, concave port 180 is fastened on rack gear 12, and when the work of axially driving motor 41, drill steel support plate 18 then can be sliding along rack gear 12 It is dynamic.

And in order to reduce the mobile institute's wasted work rate of device, uniformly divide along its length in the present embodiment in the bottom of pedestal 1 Multiple support rollers 14 are furnished with, wherein support roller 14 is along pedestal 1 there are two the rear and front end that support roller 14 is located at pedestal 1 Width direction setting, both ends end is equipped with idler wheel 140 in a rotatable manner, and each idler wheel 140 is each equipped with braking Piece, for being locked when needed to wheel 140, to keep the stability of pedestal 1.

Referring to figs. 1 to 3, it is described further below with reference to its specifically used state, as shown in figure 3, by the utility model Dynamic simulation experiment is recycled for dummy level well horizontal segment, simulation wellbore hole 10 and simulation drill string 11 pass through wellbore support group respectively Part and drill steel support component are fixedly supported on pedestal 1, are detachably connected between simulation wellbore hole 10 and wellbore support plate 17, even It can be formed by the short cylinder of multistage by flanged joint, the connection of such multisection type, be also convenient for installing eccentric block additional in experiment, with Facilitate the simulated experiment for carrying out eccentric well circulation, the rear end of simulation drill string 11 (is connected simultaneously by tap 13 on similar drilling machine Connecing the connector of drilling tool and gooseneck, i.e., structure is driven on top, and in drilling process, when drilling tool rotates, tap 13 will not rotate, And can stablize and the drilling fluid that gooseneck is pumped into is sent into drilling tool) be connected with the motor shaft of rotary drive motor 42, before Simulation drill string 11 in end is then protruded into simulation wellbore hole 10 by drilling rod perforation, then can be with dynamic model when rotary drive motor 42 rotates Quasi- drill string 11 circumferentially rotates.

In the present embodiment, simulation drill string 11 is mobile towards simulation shaft bottom (i.e. the front end of simulation wellbore hole 10) when to prevent experiment In the process, it collides between drill steel support plate 18 and fixed plate 16, therefore in a drill steel support plate 18 close to simulation shaft bottom It is equipped with sensors in place 1a, and is equipped with matching isolation 1b, sensors in place 1a in a fixed plate 16 of face Warning device can be connected, when sensors in place 1a is close or touch trigger piece 1b, then issues signal in real time to warning device, from And experimenter is reminded to make correct operation, improve the safety coefficient of system.

It is provided with corresponding sealing structure between the end of simulation wellbore hole 10 and simulation drill string 11, is sealed into dynamic sealing knot Structure also can guarantee leakproofness between the two even if simulation drill string 11 rotates.

Simulation wellbore hole 10 is lucite tube, has transparent and high-intensitive characteristic, and driving device 4 can drive simulation drill string 11 make rotating motion and/or are axially moved, and two kinds of movements can carry out simultaneously, can also individually carry out, be also applied to bore in this experiment The well liquid circulatory system 2, sanding device 6 and feeder 7, drilling-fluid circulation system 2 mainly include Deal With Drilling Fluid equipment and phase Deal With Drilling Fluid equipment is connect, to construct phase by the connection manifold answered by manifold with simulation drill string 11 and simulation wellbore hole 10 To true drilling mud circulation operating condition, sanding device 6 is mainly used for that sandstone is added into drilling fluid in experiment in experiment, with Shaft bottom landwaste is simulated, as main observation references object, and feeder 7 is then for being filled with gas into drilling fluid in experiment Body changes property of drilling fluid, can preferably be inflated drilling simulation experiment.

Drilling-fluid circulation system 2 mainly includes the pipe of some processing equipments for being related to drilling fluid and each equipment of connection in experiment Line, as shown, processing equipment mainly includes slush pump 20, slurry tank 21, vibrating screen 22, wherein usual vibrating screen 22 is located at mud It starches on tank 21, is then directly entered in slurry tank 21 by the drilling fluid after vibration filtering, the arrival end and mud of slush pump 20 It starches tank 21 to be connected, pumps out end and be connected with inlet tube 2a, inlet tube 2a has three branch pipes, and three branch pipes are respectively drill string feed liquor Pipe 2b, annular space inlet tube 2c and bypass pipe 2d are equipped with switch gate valve, drill string inlet tube 2b and annular space inlet tube on three branch pipes 2c is equipped with fluid flowmeter, and wherein drill string inlet tube 2b is connected to by tap 13 with simulation drill string 11, annular space inlet tube 2c Then it is connected to, the simulation well head (rear end for referring to simulation wellbore hole 10) of simulation wellbore hole 10 with the bottom of simulation wellbore hole 10 (i.e. simulation shaft bottom) End is connected with return pipe 2e, and the position of close simulation wellbore hole 10 is equipped with triple valve 2f on return pipe 2e, and bypass pipe 2d then passes through three Port valve 2f is connected with return pipe 2e, and the distal end of return pipe 2e is then directly connected on vibrating screen 22, is filtered, and filters generation Granule foreign is then uniformly collected into recycling bins 25.

Feeder 7 is located at the upstream (on the basis of fluid flow direction) of sanding device 6, as shown, feeder 7 It mainly include air compressor machine 70, air accumulator 71 and drier 72, the compressed gas storage that the work of air compressor machine 70 generates is in air accumulator 71 Interior, drier 72 is connected with air accumulator 71, and the outlet end of drier 72 is connected with annular space inlet tube 2c, in such air accumulator 71 Compressed gas can be filled in the drilling fluid of annular space after the drying through drier 72, certainly for convenient for controlling aeration quantity, thus Be provided with gas open-close valve 73 between drier 72 and annular space inlet tube 2c, at the same also gas open-close valve 73 and drier 72 it Between be equipped with gas flowmeter.

Sanding device 6 includes mainly automatic sand adding mechanism and artificial sand adding mechanism, as shown, automatic sand adding mechanism includes Resevoir sand tank 60 and the automatic sand adding device 600 being attached thereto, automatic sand adding device 600 are connected with annular space inlet tube 2c, are mainly used for Adding amount is larger, diameter is less than the regular shape gravel that 8mm is acted on, and artificial sand adding mechanism then mainly includes and annular space inlet tube 2c connected conical hopper 61, the two communicating position are equipped with manual plus sand valve close to simulation shaft bottom, the bottom of conical hopper 61 610, be mainly used for carrying out adding amount is less, gravel in irregular shape can abundant mould by two different sand adding mechanisms Intend different operating conditions, i.e., normal fine sand returns out or the annular space of well wall dropping block dynamic, by observation different shape gravel in annular space Situation can more react actual well drilled problem encountered.

Similarly, it is raising system operation reliability, and for the generality of different well drilling tool Experiment Parameters, meets different Wellbore simulates demand, and the drilling-fluid circulation system 2 in experiment further includes sand pump 23 and spare inlet tube 2g, as shown, sand pump 23 input end is connected with slurry tank 21, pumps out end while being connected to inlet tube 2a and spare inlet tube 2g, spare inlet tube 2g is arranged in parallel with inlet tube 2a, while one end far from sand pump 23 is same with three branch pipes (drill string inlet tube 2b, annular space Inlet tube 2c is connected with bypass pipe 2d), and certain slush pump 20 is also connected with spare inlet tube 2g, in slush pump 20 and spare feed liquor It is equipped with mud pump valve 200 between pipe 2g and liquid pipe 2a, and distinguishes in spare inlet tube 2g and liquid pipe 2a and 23 connected position of sand pump Equipped with sand pump switch valve 230,230 ', by mud pump valve 200 and sand pump switch valve 230,230 ' can be realized slush pump 20 with The selection of sand pump 23；Sand pump 23 is mainly used for the circulation line of small size, and pipeline pressure is lower, and slush pump 20 is mainly used for Large scale pipeline, pipeline pressure are higher.

And it is the flow direction of gas when inflating convenient for control, therefore gas flow control valve is additionally provided on annular space inlet tube 2c 74, when the switch gate valve on inlet tube 2a and spare inlet tube 2g is closed, the switch gate valve on annular space inlet tube 2c is opened, that is, is not had There is liquid to enter pipeloop, closing gas flow control valve 74 can then make compressed gas enter simulation brill through drill string inlet tube 2b Inside column 11, complete air-filling well-drilling simulated experiment is realized, if only simulating shaft bottom recurrent state, openable gas certainly Flow direction control valve 74, simultaneously closes off the switch gate valve on annular space inlet tube 2c, such gas can directly through annular space inlet tube 2c into Enter and simulate shaft bottom, similarly, the switch gate valve on inlet tube 2a and spare inlet tube 2g can also be opened according to experiment demand, thus Realize gas-liquid-solid three-phase in the simulation of different drilling conditions.

The exit of slurry tank 21 is provided with slurry outlet valve 210, and slush pump 20 and sand pump 23 are respectively positioned on slurry outlet valve 210 downstream is preferably to clean to pipeline, therefore be also configured with clean water tank 24 in the present embodiment, the outlet of clean water tank 24 End is provided with clear water switch valve 240, and shares with slurry outlet pipeline, while being connected with slush pump 20 and sand pump 23.

In addition, being arranged on the pipeline of return pipe 2e in this test to improve the accuracy of conventional efficient and experimental result There is a solid-liquid separator 3, and solid-liquid separator 3 is between vibrating screen 22 and triple valve 2f, it can be to the brill come out at simulation well head Well liquid directly carries out drilling fluid, and realization is automatically separated and real time measure, thus saves on experimenter to vibrating screen 22 and carries out The step of particle recycles, and recycling is more complete, is not susceptible to miss and cause experimental results error larger.

For convenient for quickly carrying out analysis of experimental results, the application is provided with corresponding data collection system, mainly wraps Include control cabinet 8, the length direction on pedestal 1 along simulation wellbore hole 10 is evenly distributed at least two high-definition cameras 80, and simulates The both ends of pit shaft 10 are mating to be provided with the difference gauge 81 being attached thereto, and densitometer 82, densitometer 82 are provided on return pipe 2e Between solid-liquid separator 3 and triple valve 2f, the side of simulation wellbore hole 10 is equipped with ultrasonic Doppler flowmeter 83, control cabinet 8 Interior to have data and graphic recording module, high-definition camera 80, difference gauge 81, densitometer 82 and ultrasonic Doppler flowmeter 83 are equal It is connected with logging modle in control cabinet 8, the parameter or influence that can be recorded on each sensor or equipment record, meanwhile, may be used also By fluid flowmeter, gas flowmeter and the rotation speed and axial movement speed parameter signal access control of simulating drill string 11 It in cabinet 8 processed, is recorded and is shown, adjusted in real time convenient for experimenter and the data preparation in later period is analyzed.

Referring to figs. 1 to Fig. 3, the step of being inflated drilling well dynamic analog using the utility model is as follows:

1) it checks each experimental facilities state, opens corresponding power supply；

2) according to simulation drill string 11 and 10 size of simulation wellbore hole, selection uses slush pump 20 or sand pump 23, if selection uses Slush pump 20 is used as power source, then opens mud pump valve 200, and closes sand pump switch valve 230,230 ', conversely, if selection uses Sand pump 23 is power source, then closes mud pump valve 200, opens sand pump switch valve 230,230 '；

3) according to by experimental selection sand adding mechanism to be simulated, i.e., the size of gravel is added as needed and the scale of construction is selected It selects, it is ensured that automatic sand adding device 600 and manual plus sand valve 610 are in close state, then according to selection in corresponding resevoir sand tank 60 Or sand grains is added in conical hopper 61；

4) it checks each valve state, opens the switch gate valve of inlet tube 2a, spare inlet tube 2g and drill string inlet tube 2b, together When open slurry outlet valve 210, and adjust triple valve 2f, return pipe 2e and vibrating screen 22 made be in connected state, close and bypass The switch gate valve on switch gate valve, closing gas open-close valve 73, closing annular space inlet tube 2c on pipe 2d, such as uses automatic sand adding Mechanism then starts automatic sand adding device 600, and such as selection, which uses, manually adds sand, then opens and add sand valve 610 manually；

5) turn on pump such as uses sand pump 23, then the aperture of drill string inlet tube 2b upper switch gate valve is adjusted, and observes flow number Variation, the corresponding utility model open position of record different flow, and as used slush pump 20, then can directly adjust pump impulse to pair Answer the number that rushes of flow, and through mud can with normal circulation, i.e., mud out of slurry tank 21 by 20/ sand pump 23 of slush pump through drill string Inlet tube 2b is sent into simulation drill string 11, then flows back in slurry tank 21 through return pipe 2e through vibrating screen 22；

6) the switch gate valve on drill string inlet tube 2b is closed, the switch gate valve on bypass pipe 2d is opened, then slowly opens Sand grains is sent into simulation shaft bottom, sand amount to be designed by drilling fluid with minimum speed by the switch gate valve on annular space inlet tube 2c After adding, corresponding sand adding mechanism is closed；

7) the switch gate valve on drill string inlet tube 2b is opened, opens gas open-close valve 73, and to be simulated according to experiment institute Operating condition, decision open or close gas flow control valve 74, that is, determine it is gas to be filled with to annular space or into simulation drill string 11 It is filled with gas, the rotary motion and/or axial movement followed by simulation drill string 11 operate, and observe sand in dummy level section Grain situation of movement directly carries out separation weighing to returning out sand grains by solid-liquid separator 3, and makes a record, and is in the present embodiment It prevents simulation drill string 11 larger to the percussion of sand grains, therefore is connected with simulation drill bit in the front end of simulation drill string 11, simulation is bored Head is substantially in pre-small post-large cone cell, and end is enclosed construction, and side offers the hydrophthalmia being connected to simulation drill string 11, and water Eye is in ellipticity；

During this, the dense of sand grains can be recorded in real time by being combined by high-definition camera 80 and ultrasonic Doppler flowmeter 83 Degree distribution and its migration velocity, and record into control cabinet 8 in logging modle, at the same in testing equipment operating parameter, such as Mud flow rate, the velocity of rotation for simulating drill string 11, axial movement speed, pressure in simulation wellbore hole 10 etc. are by control cabinet 8 one One acquisition and recording；

8) it repeats the above steps, carries out the dynamic analog of various flow, multi-state circulation, and carry out experimental record；

9) experiment finishes, and after all returning out to the sand grains in simulation wellbore hole 10, opens clear water switch valve 240, closes mud Outlet valve 210 is starched, pipeline and equipment are cleaned using clear water, it is ensured that equipment cleaning degree is conducive to extend its service life；

10) pump is closed, according to record data, carries out comprehensive analysis.

During the experiment, driving device 4 is mainly made full use of to realize the axial movement and rotary motion of simulation drill string 11, To meet the demand of the simulation of annular circulation process multi-state, Annular Cuttings migration rule, quantitative survey can be especially observed The chips size composition in Annular Cuttings radial direction concentration and annular space difference basin is measured, the researchs such as rock is taken for the sand washing of aerated mud and mentions For effective reliable data supporting, certain this system also not only can only be used to the simulation of air-filling well-drilling, by opening each valve It closes, can also be achieved the different working condition experimentings of independent liquid-solid two-phase, independent gas-particle two-phase, there is more good universal use value.

Finally, it should be noted that foregoing description is only the preferred embodiment of the utility model, the common skill of this field Art personnel are under the enlightenment of the utility model, under the premise of without prejudice to the utility model aims and claim, can make Multiple similar expressions, such transformation are each fallen within the protection scope of the utility model.

Claims (8)

1. a kind of mounting rack for drilling circulation simulated experiment, it is characterised in that: the pedestal (1) including plate-like structure, institute Stating pedestal (1) has the wellbore support component and drill steel support component set gradually along its length, wherein wellbore support component Wellbore support plate (17) including at least two pieces along the setting of pedestal (1) length direction has just on the wellbore support plate (17) Pit shaft perforation to setting, the pit shaft perforation include at least two pieces of edges the bottom of along for installing simulation wellbore hole, drill steel support component The fixed plate (16) of seat (1) length direction setting, wherein corresponding well on one piece of fixed plate (16) adjacent with wellbore support component The position of cylinder perforation is perforated equipped with drilling rod, and the drilling rod perforation is for installing simulation drill string；

Driving device (4) are configured on the pedestal (1), the driving device (4) is used for the driving simulation drill string edge in experiment The length direction of simulation wellbore hole is mobile and/or driving simulation drill string rotates.

2. the mounting rack according to claim 1 for drilling circulation simulated experiment, it is characterised in that: the wellbore support Between plate (17) have symmetrically arranged connecting rod (19), the connecting rod (19) pass through all wellbore support plates (17), two End is fixedly connected with corresponding wellbore support plate (17) respectively.

3. the mounting rack according to claim 1 or 2 for drilling circulation simulated experiment, it is characterised in that: the fixation There are gaps between plate (16) and adjacent wellbore support plate (17), and are fixedly connected by stud.

4. the mounting rack according to claim 1 for drilling circulation simulated experiment, it is characterised in that: the driving device It (4) include transmission case (40), which is equipped with axially driving motor (41) and rotary drive motor (42), transmission case (40) there is the gear that is driven by axially driving motor (41) in, be symmetrically arranged with tooth in the two sides of transmission case (40) on pedestal (1) Item (12), wheel and rack (12) engagement, the rotary drive motor (42) are arranged along the length direction of pedestal (1), Motor shaft is through the antetheca for going out transmission case (40).

5. the mounting rack according to claim 4 for drilling circulation simulated experiment, it is characterised in that: the fixed plate (16) there are two, there is four symmetrically arranged guide cylinders (15), the guide cylinder (15) between two fixed plates (16) Length direction along pedestal (1) is arranged, and both ends are separately fixed in the fixed plate (16) of face；

Two drill steel support plates (18) are also movably set between two fixed plates (16), two drill steel support plates (18) are same Shi Yusi guide cylinder (15) is slidably matched, and the driving device (4) is fixedly supported on two drill steel support plates (18).

6. the mounting rack according to claim 5 for drilling circulation simulated experiment, it is characterised in that: the rack gear (12) Both ends are separately fixed on two fixed plates (16), have the concave being adapted with rack gear (12) on the drill steel support plate (18) Mouth (180).

7. the mounting rack according to claim 5 or 6 for drilling circulation simulated experiment, it is characterised in that: close to pit shaft One drill steel support plate (18) of support component is equipped with sensors in place (1a), and one in close wellbore support component is solid Fixed board (16) is equipped with and sensors in place (1a) matched isolation (1b).

8. the mounting rack according to claim 1 or 2 for drilling circulation simulated experiment, it is characterised in that: the pedestal (1) bottom has at least two support rollers (14) being arranged in the width direction, and the both ends of the support roller (14) are set with idler wheel (140)。