Mud does not land intelligent environment protection integration well drilling solid control system and three screen devices thereof
Technical field
The utility model relates to drilling assistance technical field, particularly a kind of for mud do not land intelligent environment protection integration well drilling solid control system three screen devices.The utility model also relate to a kind of mud comprising above-mentioned three screen devices do not land intelligent environment protection integration well drilling solid control system.
Background technology
Drilling mud is a kind of circulation of fluid for drilling well, is in drilling process, the cyclic flusher medium used in hole.Drilling mud has carry and suspend landwaste, equilibrium strata pressure, cooling and lubricating drill bit and drilling tool in pit shaft, the protection borehole wall and oil-gas Layer and improves the functions such as bit speed, has very important effect in drilling process.
Waste liquid of drilling (mud) is a kind of heterogeneous stable colloidal suspension system, containing materials such as plurality of inorganic salt, organic agent, polymer, surfactants, wherein heavy-metal pollution soil, the water body of contained oils, salt, drilling mud additives and some solubilities, affect animal and plant growth, harm humans is healthy, needs to process waste liquid of drilling in time.Conventional drilling mud circulation system only relies on the vibrosieve of the offshore boring island circulating system self, and desander, the drilling mud circulating out from well processes by desilter and centrifuge.Particularly, from the drilling mud with a large amount of landwaste (harmful solid phase) that well head returns out, flow to the entrance of first order cleaning equipment-vibrosieve under gravity by well head overhead drilling mud in length and breadth groove (with certain slope), larger harmful solid phase particles sifts out and drains by the screening through vibrosieve.When drilling mud occurs that gas soaks, in the mud settling tank of the drilling mud purification pot be purified by vibrosieve, utilize the swabbing action of deaerator vacuum pump, negative pressure is caused in vacuum tank, drilling mud enters in deaerator under atmospheric pressure and is separated, the gas that sub-argument goes out is discharged into crown emptying, and the drilling mud after degasification is arranged in drilling mud No. 2 tanks under the driving of evacuation chamber rotor.When drilling mud is not containing gas, deaerator can be used as powerful drilling mud agitator, keep the drilling mud in purification pot not precipitate.The drilling mud be purified by vibrosieve enters in the mud settling tank of drilling mud jug, desanding sand pump is utilized to enter in the desander of second level cleaning equipment-associating cleaner by drilling mud pressurization, utilize eddy flow principle to be again separated, will harmful solids removal of mid point d50 >=70 be separated.Drilling mud after desanding is arranged in drilling mud No. 3 tanks through the overflow line of desander.According to the general requirement of drilling mud cleaning system, the treating capacity of desander reaches more than 125% of normal drilling mud circulation amount, makes the drilling mud in purification pot can obtain repeatedly purifying fully, reduces the sand content of drilling mud.The drilling mud be purified by desander is utilized except drilling mud pressurization enters in the desilter of third level cleaning equipment-associating cleaner by sand pump, utilizes eddy flow principle to be again separated, and will be separated harmful solids removal of more than mid point d50=36um.Drilling mud after desilt is arranged in drilling mud No. 4 tanks through the overflow line of desilter.Containing certain drilling mud in the underflow that desander and desilter are discharged, again sieve in the two underflow enters associating cleaner vibrosieve after joining, drilling mud reclaims into drilling mud jug, the discharge of sand mud.Still containing a large amount of harmful solid phases in the drilling mud of three grades of purifications, when drilling mud be non-increase the weight of state time, utilize two desk centrifuge parallel connections to use, the harmful solid phase being greater than 5um in drilling mud removed, the drilling mud after process is arranged in the 5th storehouse of drilling mud purification pot.
But, conventional drilling mud circulation system only relies on the vibrosieve of the offshore boring island circulating system self, desander, the drilling mud circulating out from well processes by desilter and centrifuge, and new Environmental Protection Situation is had higher requirement to well drilling solid control system, as first order solid controlling in solid controlling system, traditional rig one general configuration two vibrosieves, parallel processing or active and standby rotation process, but, the vibrosieve treatment effeciency of transmission is lower, fully cannot realize the effect that one-level is separated, increase the pressure of follow-up solid controlling link; And when running into the situation such as special formation, rapid drilling, easy running pulp, thus bring severe environmental issue.
Therefore, there is provided a kind of for mud do not land intelligent environment protection integration well drilling solid control system three screen devices, to treatment effeciency and one-level separating power can be improved, reduce the processing pressure of follow-up solid controlling link, and avoid running pulp, ensureing environmental-protecting performance, needing the problem of solution with regard to becoming those skilled in the art badly.
Utility model content
The purpose of this utility model be to provide a kind of for mud do not land intelligent environment protection integration well drilling solid control system three screen devices, to treatment effeciency and one-level separating power can be improved, reduce the processing pressure of follow-up solid controlling link, and avoid running pulp, ensure environmental-protecting performance.Another object of the present utility model be to provide a kind of mud comprising above-mentioned three screen devices do not land intelligent environment protection integration well drilling solid control system.
For solving the problems of the technologies described above, three screen devices that the utility model provides a kind of mud not land integrated well drilling solid control system, this solid controlling system comprises the tank and No. two tanks that set gradually, described three screen devices comprise the vibrating screen assembly be positioned at above a described tank, and described vibrating screen assembly comprises the first vibrosieve, the second vibrosieve and the 3rd vibrosieve that are set gradually to described No. two tank directions by a described tank; Have the liquid passage be connected with a slush scratch pool below the screen cloth of described vibrating screen assembly, the solid-phase outlet of described vibrating screen assembly is connected with mixing plant by helical feed assembly; The rear of described vibrating screen assembly is provided with splitter box, the openend of described splitter box is connected with drilling well magma, its port of export is connected with each vibrosieve respectively, be communicated with by valve between described splitter box with a described slush scratch pool or end, and the end of described splitter box is communicated with described No. two tanks by vertical pipe.
Preferably, the port of export of described splitter box comprises first port of export, second port of export and the 3rd port of export, be communicated with by the first slide valve between described first port of export with described first vibrosieve or end, be communicated with by the second slide valve between described second port of export with described second vibrosieve or end, being communicated with by the 3rd slide valve or ending between described 3rd port of export with described 3rd vibrosieve.
Preferably, in the one in described first vibrosieve, described second vibrosieve and described 3rd vibrosieve, cyclone is installed.
Preferably, described cyclone is installed in described 3rd vibrosieve.
Preferably, described liquid passage is downward-sloping along mud flow direction.
Preferably, described first vibrosieve, described second vibrosieve and described 3rd vibrosieve are integrated in same skid base.
Preferably, described liquid passage is formed at the bottom surface of described skid base.
Preferably, described helical conveyor assembly comprises the first helical conveyor be connected with the solid-phase outlet of described first vibrosieve, the second helical conveyor be connected with the solid-phase outlet of described second vibrosieve, and the 3rd helical conveyor be connected with the solid-phase outlet of described 3rd vibrosieve; The transmission direction of described first helical conveyor and the transmission direction of described 3rd helical conveyor are all towards described second helical conveyor, and the discharging opening of described second helical conveyor communicates with described mixing plant.
The utility model also provides a kind of mud not land integrated well drilling solid control system, and the one-level solidifying and controlling device comprising a tank, No. two tanks and be arranged at above a described tank, described one-level solidifying and controlling device is three screen devices as above.
Three screen devices provided by the utility model are used for mud and do not land integrated well drilling solid control system, this solid controlling system comprises the tank and No. two tanks that set gradually, wherein, three screen devices comprise the vibrating screen assembly be positioned at above a described tank, and described vibrating screen assembly comprises the first vibrosieve, the second vibrosieve and the 3rd vibrosieve that are set gradually to described No. two tank directions by a described tank; Have the liquid passage be connected with a slush scratch pool below the screen cloth of described vibrating screen assembly, the solid-phase outlet of described vibrating screen assembly is connected with mixing plant by helical feed assembly; The rear of described vibrating screen assembly is provided with splitter box, the openend of described splitter box is connected with drilling well magma, its port of export is connected with each vibrosieve respectively, be communicated with by valve between described splitter box with a described slush scratch pool or end, and the end of described splitter box is communicated with described No. two tanks by vertical pipe.
The drilling well magma of rig ejection flows into splitter box through openend, and enter corresponding vibration sieve through the port of export of splitter box, vibration realizing Separation of Solid and Liquid in vibrosieve, solid phase after separation enters mixing plant through helical feed assembly, liquid phase flows into a slush scratch pool through liquid passage, when mud systemic circulation, open the valve between splitter box and a slush scratch pool, make mud directly enter scratch pool; Like this, improve treatment effeciency and the one-level separating power of equipment by the setting of three sieves, reduce the processing pressure of follow-up solid controlling link; And the valve by splitter box is installed, during in order to mud systemic circulation, directly mud is entered in a slush scratch pool, to avoid running pulp, ensure environmental-protecting performance.
In a preferred embodiment, in three screen devices provided by the utility model, in the one in its first vibrosieve, the second vibrosieve and the 3rd vibrosieve, cyclone is installed, to realize circulation desanding, further raising desanding effect, improves separating power.
In another kind of detailed description of the invention, in three screen devices provided by the utility model, its helical conveyor assembly comprises the first helical conveyor be connected with the solid-phase outlet of described first vibrosieve, the second helical conveyor be connected with the solid-phase outlet of described second vibrosieve, and the 3rd helical conveyor be connected with the solid-phase outlet of described 3rd vibrosieve; The transmission direction of described first helical conveyor and the transmission direction of described 3rd helical conveyor are all towards described second helical conveyor, and the discharging opening of described second helical conveyor communicates with described mixing plant; Like this, the solid-phase component that first vibrosieve exports comes together in the second helical conveyor through the first helical conveyor, the solid-phase component that 3rd vibrosieve exports comes together in the second helical conveyor through the 3rd helical conveyor, realize solid-phase component collecting on the second helical conveyor, and by controlling the rotating of device second helical conveyor, realize the conveying of solid-phase component to mixing plant, thus improve the transmission performance of solid-phase component.
Accompanying drawing explanation
Fig. 1 is the front view of a kind of detailed description of the invention of three screen device provided by the utility model;
Fig. 2 is the top view of three screen devices shown in Fig. 1;
Fig. 3 is the lateral view of three screen devices shown in Fig. 1.
Detailed description of the invention
Core of the present utility model be to provide a kind of for mud do not land intelligent environment protection integration well drilling solid control system three screen devices, to treatment effeciency and one-level separating power can be improved, reduce the processing pressure of follow-up solid controlling link, and avoid running pulp, ensure environmental-protecting performance.Another core of the present utility model be to provide a kind of mud comprising above-mentioned three screen devices do not land intelligent environment protection integration well drilling solid control system.
In order to make those skilled in the art person understand the technical solution of the utility model better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 1-Fig. 3, Fig. 1 is the front view of a kind of detailed description of the invention of three screen device provided by the utility model; Fig. 2 is the top view of three screen devices shown in Fig. 1; Fig. 3 is the lateral view of three screen devices shown in Fig. 1.Wherein, the direction of arrow is material (magma, solid phase or liquid phase) flow direction.
In a kind of detailed description of the invention, three screen devices provided by the utility model are used for mud and do not land integrated well drilling solid control system, this solid controlling system comprises the tank and No. two tanks that set gradually, wherein, three screen devices comprise the vibrating screen assembly be positioned at above a described tank, and described vibrating screen assembly comprises the first vibrosieve 1, second vibrosieve 2 and the 3rd vibrosieve 3 that are set gradually to described No. two tank directions by a described tank; Have the liquid passage 4 be connected with a slush scratch pool below the screen cloth of described vibrating screen assembly, the solid-phase outlet of described vibrating screen assembly is connected with mixing plant by helical feed assembly; The rear of described vibrating screen assembly is provided with splitter box 5, the openend of described splitter box 5 is connected with drilling well magma, its port of export is connected with each vibrosieve respectively, be communicated with by valve between described splitter box 5 with a described slush scratch pool or end, and the end of described splitter box 5 is communicated with described No. two tanks by vertical pipe 6.
For the ease of liquid phase ingredient transmission, described liquid passage 4 is downward-sloping along mud flow direction; Particularly, described first vibrosieve 1, described second vibrosieve 2 and described 3rd vibrosieve 3 are integrated in same skid base, and to improve integration degree, the space being convenient to vibrating screen assembly is arranged, now, above-mentioned liquid passage 4 is formed at the bottom surface of described skid base.
Should be understood that, this solid controlling system not only has a tank and No. two tanks, can also arrange the more multiple-tank body such as No. three tanks, No. four tanks according to demand, and because other tank bodies and three screen devices have nothing to do, therefore not to repeat here.
In the course of the work, the drilling well magma of rig ejection flows into splitter box 5 through openend, and enter corresponding vibration sieve through the port of export of splitter box 5, vibration realizing Separation of Solid and Liquid in vibrosieve, solid phase after separation enters mixing plant through helical feed assembly, and liquid phase flows into a slush scratch pool through liquid passage 4, when mud systemic circulation, open the valve between splitter box 5 and a slush scratch pool, make mud directly enter scratch pool; Like this, improve treatment effeciency and the one-level separating power of equipment by the setting of three sieves, reduce the processing pressure of follow-up solid controlling link; And the valve by splitter box 5 is installed, during in order to mud systemic circulation, directly mud is entered in a slush scratch pool, to avoid running pulp, ensure environmental-protecting performance.
Further, the port of export of splitter box 5 comprises first port of export, second port of export and the 3rd port of export, be communicated with by the first slide valve 7 or end between described first port of export with described first vibrosieve 1, be communicated with by the second slide valve 8 or end between described second port of export with described second vibrosieve 2, be communicated with by the 3rd slide valve 9 or end between described 3rd port of export with described 3rd vibrosieve 3.Like this, connected relation between splitter box 5 and three vibrosieves can independently control, can according to the folding of corresponding slide valve, what realize that splitter box 5 sieves with corresponding vibration is communicated with, to adjust the number of in running order vibrosieve according to the mud amount of drilling well generation, thus while guarantee supporting capacity, practice every conceivable frugality the energy.
In theory, also each slide valve can not be set, make all to be in normal open state between splitter box 5 and each vibrosieve.
In one in above-mentioned first vibrosieve 1, second vibrosieve 2 and the 3rd vibrosieve 3, cyclone 10 is installed, to realize circulation desanding, improves desanding effect further, improve separating power.Particularly, described cyclone 10 is installed in described 3rd vibrosieve 3, also can be arranged in the first vibrosieve 1 or the second vibrosieve 2.
Further, helical conveyor assembly comprises the first helical conveyor 11 be connected with the solid-phase outlet of described first vibrosieve 1, the second helical conveyor 12 be connected with the solid-phase outlet of described second vibrosieve 2, and the 3rd helical conveyor 13 be connected with the solid-phase outlet of described 3rd vibrosieve 3; The transmission direction of described first helical conveyor 11 and the transmission direction of described 3rd helical conveyor 13 are all towards described second helical conveyor 12, and the discharging opening of described second helical conveyor 12 communicates with described mixing plant; Like this, the solid-phase component that first vibrosieve 1 exports comes together in the second helical conveyor 12 through the first helical conveyor 11, the solid-phase component that 3rd vibrosieve 3 exports comes together in the second helical conveyor 12 through the 3rd helical conveyor 13, realize solid-phase component collecting on the second helical conveyor 12, and by controlling the rotating of device second helical conveyor 12, realize the conveying of solid-phase component to mixing plant, thus improve the transmission performance of solid-phase component.
From theory, helical conveyor assembly is also not limited to said structure form, also only can arrange the conveyer running through each vibrosieve, and passes through the rotating of this conveyer, adjustment throughput direction; Also three helical conveyors can be connected with mixing plant respectively.
It is pointed out that ordinal numbers such as " first, second " described in literary composition, is the different structure in order to distinguish same names, only for convenience, does not represent certain order, more should not be construed as any restriction.
Except above-mentioned three screen devices, the utility model also provides a kind of mud comprising above-mentioned three screen devices not land integrated well drilling solid control system, this mud does not land other Each part of integrated well drilling solid control system and please refer to prior art, does not repeat them here.
Apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.