MXPA01006880A - A recovery apparatus for drilling and excavation applications and related methods - Google Patents

A recovery apparatus for drilling and excavation applications and related methods

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Publication number
MXPA01006880A
MXPA01006880A MXPA/A/2001/006880A MXPA01006880A MXPA01006880A MX PA01006880 A MXPA01006880 A MX PA01006880A MX PA01006880 A MXPA01006880 A MX PA01006880A MX PA01006880 A MXPA01006880 A MX PA01006880A
Authority
MX
Mexico
Prior art keywords
recovery
mesh
shaker
solids
tank
Prior art date
Application number
MXPA/A/2001/006880A
Other languages
Spanish (es)
Inventor
Ricky Southall
Original Assignee
Sun Drilling Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sun Drilling Corporation filed Critical Sun Drilling Corporation
Publication of MXPA01006880A publication Critical patent/MXPA01006880A/en

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Abstract

A recovering system (1) comprising at least one shale shaker (20) having at least one screen (21) and a hydrocyclone manifold system (22);a recovery tank (12) having a cavity (15) and a base (18), the tank (12) having at least one inlet (16) and at least one outlet (17), the recovery tank (12) having at least one agitation system (13) for creating force within the cavity (15) of the recovery tank (12);and at least one recovery shaker (30) having at least one screen (31).

Description

RECOVERY APPARATUS FOR DRILLING AND EXCAVATION APPLICATIONS AND RELATED METHODS FIELD OF THE INVENTION The present invention relates to a recovery apparatus for drilling and excavation applications, comprising a recovery tank, at least one pump and at least one motor. The invention also relates to a continuous recovery system for recycling solid particulate materials, and to related methods.
BACKGROUND OF THE INVENTION During drilling of a well, it is common to process the drilling mud returns to remove unwanted drilling debris or solids using a shaker or shale agitator or similar. The shale shaker is the primary piece of equipment that separates the drilled solids from the mud. It is also desirable to produce a slurry with a low content of perforated solids. By recycling large drilled solids in the shale shaker, thin sizes of perforated solids are produced and the solids content of the sludge is formed. As it is REF: 131602 Increasing the solids content, the sludge must be thinned by the addition of additional water, which requires the addition of more weighing material to keep the sludge at its desired weight. In addition to removing large, unwanted, drilled solids, and producing a slurry with a low drilled solids content, it is also desirable to recover and recycle drilling fluids and solid particulate material such as copolymer spheres. The spheres are usually made to circulate through the system once and then discarded. It is economically beneficial to recycle these potentially expensive spheres during the drilling process. It is conventional to sift the slurry on a shale shaker or shaker having meshes in the 10 to 200 mesh size range. Thus, any solid particulate materials having a larger particle size than the shale shaker mesh could be removed from the system with the perforated solids. Efforts have been made to deposit the perforated solids and the polymeric spheres in a tank containing a liquid having a specific gravity lower than that of the perforated solids but greater than that of the copolymer spheres. As a result, Copolymer spheres or particulate materials migrate or float to the top of the liquid and can then be skimmed from the upper portion of the container, and then returned to the well for recirculation. In these systems, the flotation liquid in the tank requires an aqueous solution of sodium carbonate or any number of soluble salts such as sodium chloride or calcium chloride to induce the separation of the spheres, the liquid and the perforated solids. The introduction of more efficient shale shakers that produce finer solids has rendered this flotation system ineffective. This flotation system did not anticipate the problem of fine solids that are formed in the separation fluid zone. As these solids continue to form, the separation liquid becomes extremely viscous or thick and will no longer allow the copolymer spheres to be effectively separated from the drilled drill debris. In addition, sodium carbonate on the surface of the copolymer spheres that are returned to the drilling fluid will create a problem for the drilling fluid, known as carbonate contamination. Carbonate contamination produces carbonic acid which reacts with the alkaline products in the drilling fluid, which in turn reduces the effectiveness of the fluid thinners perforation such as lignosulfonates and allow drilling fluids to become increasingly thick and unacceptable.
BRIEF DESCRIPTION OF THE INVENTION The present invention relates to a recovery apparatus for drilling and excavation applications. The apparatus comprises a recovery tank, at least one pump and at least one motor. The recovery tank has an inlet and outlet to allow the entry and exit of drilled solids, drilling fluids, solid particulate materials and mixtures thereof. For purposes of this invention, perforated solids are forming pieces that are the result of the chopping and / or grinding action of the drill bit during the drilling and digging process. The drilling fluids are circulating fluid used in rotary drilling to perform various functions during drilling operations. Solid particulate materials include, but are not limited to, lubricating copolymer spheres. The recovery tank of the present invention has a cavity and a base having a base inclined towards the cavity. The base makes the separation of the components of the mixture. The pump is used to pump drilled solids, drilling fluids, solid particulates and mixtures thereof into the tank inlet, through the cavity and out of the tank outlet. The pump also creates the centrifugal force that allows the separation of the components in the mixture. The motor provides the energy to operate the pump and the recovery apparatus. In one embodiment of the invention, the recovery apparatus is further comprised of a motor control panel, an upper portion for closing the tank cavity and a structure or frame for supporting the tank, the pump and the engine. The motor control panel is an electrical unit used to control and energize the electrical components of the recovery system of the present invention. In yet another embodiment of the invention, the recovery tank has three walls, and each of these three walls has upper and lower ends. The upper ends of the well are connected to the upper portion of the tank to form the cavity. The lower ends of at least two of the walls are tapered towards each other, whereby the cavity is formed within the tank.
In yet another embodiment, the recovery tank comprises four walls, each of the four walls has upper and lower ends, and the lower ends of the two walls are tapered towards each other. In yet another embodiment, the recovery tank comprises four walls, each of the four walls has upper and lower ends and the lower ends of the four walls are tapered towards each other. In a further embodiment, the recovery apparatus has two motors and two pumps, whereby the second motor and the second pump function as a backup. In a further embodiment, the recovery tank comprises at least one suction pipe and at least one discharge pipe. In a further embodiment, the recovery tank comprises a quick discharge valve for disposing of the drilled solids. The present invention also relates to a continuous recovery system for suspending, separating and collecting solid particulate material from drilled solids, drilling fluid and mixtures thereof, during drilling and excavating applications. The system comprises a recovery apparatus, at least one shale shaker and at least a recovery shaker The shale and recovery shaker is a mechanical separator that uses vibrating screens to separate the drilled mud and its components. The shaker shaker of the recovery system comprises at least one mesh size and a pipe hydrocyclone system. There are numerous hydrocyclone systems on the market. Numerous hydrocyclone systems can be used with this invention including, but not limited to, the 10 cm (4 inch) hydrocyclone manufactured by Harrisburg. The recovery apparatus comprises a recovery tank and at least one agitation system. The recovery tank of the recovery apparatus has an inlet, an outlet, a cavity and a tapered base. The recovery shale shaker comprises at least one mesh. In one embodiment, the recovery system comprises a recovery apparatus comprising a recovery tank having a cavity and a base, the recovery tank having at least one inlet and at least one outlet. The recovery apparatus has at least one agitation system to create the force inside the tank, which aids in the separation of the components of the particulate / permeable solids mixture. The recovery system also has a pipe hydrocyclone system and at least one shaker recovery that has at least one sieve. The system may further comprise at least one shale shaker having at least one screen, the pipe hydrocyclone system is located on the shale shaker. In a further embodiment, a mixture of solid particulate material, drilling fluids, fine particles of perforated solids, enters the shale shaker, where the perforated solids are separated from the mixture by the shaker shaker screen. The remnant mixture then enters the. recovery tank and is subsequently separated by the centrifugal force created by the agitation system. The remaining mixture of the particulate material, the drilled fluids and the fine particles of the perforated solids are transferred to the pipe hydrocyclone system where the particles of the perforated solids are separated from the remaining mixture. The mixture then enters the drill shaker where the drilled fluids and solid particulate materials are finally separated. In a further embodiment, a mixture of solid particulate material, drilling fluids, fine particles of the perforated solids and perforated solids, enters the recovery tank and are separated by a force created by the agitation system. Perforated solids gravitate toward the bottom of the tank. The.
The mixture of the particulate material, the drilling fluids and the fine particles of the perforated solids is then transferred to the pipe hydrocyclone system where the fine particles of the drilled solids are separated from the mixture and the particulate / fluid mixture is then transferred to the recovery shaker, where the drilling fluid is separated from the solid particulate materials. The pressure required by the hydrocyclone system to separate the fine particles from the perforated solids from the mixture is about 454 kg (10 pounds) to about 908 kg (200 pounds). In a further embodiment, the recovery tank of the recovery system has at least three walls, each of the walls has upper and lower ends and the lower ends of at least two walls are tapered towards each other, thereby forming a cavity inside the recovery tank. In yet another embodiment, the recovery tank may have a plurality of shapes, including round walls or funnel-shaped walls having a tapered base. In yet another embodiment, the recovery tank further comprises at least one suction pipe and at least one discharge pipe, and a quick discharge valve to dispose of the perforated solids located at the base of the tank. In yet another embodiment, the recovery tank comprises four walls, each of the four walls having upper and lower ends, and the lower ends of at least two walls are tapered towards each other, whereby a cavity is formed within the recovery tank. In a further embodiment, the recovery tank comprises four walls, each of said walls having upper and lower ends, and the lower ends of the four walls are tapered towards each other. In yet another embodiment, the recovery apparatus may have two motors and two pumps, the second motor and the second pump function as a backup. The recovery tank may also have a top portion, an engine control panel and the structure or frame to support the tank, pump and engine. In yet another embodiment, the hydrocyclone system of the shale shaker comprises at least one cone. The hydrocyclone pipe system is a separation device that uses a liquid such as water, oils, diesel, synthetic or petroleum-based sludge, salt water, etc., to create the force Centrifugal for separation. The pipe is a tube with an inlet and outlet, used to separate solids from liquids. The cone is a separation device in which the drilling fluid is pumped tangentially to the cone, and the cone creates the rotation of the fluid that provides the centrifugal force to separate the particles by mass weight. The system also comprises the conduits for connecting the recovery apparatus, the shaker shaker and the recovery shaker. The conduits are pipes and the like used to transport the piercing components through the recovery system of the present invention. The mesh size of the screens in the shaker shaker and the recovery shaker can be from about 2 mesh to about 350 mesh. In yet another embodiment, the shale shaker has a series of three different mesh screens, a first screen has a sieve size of about 4 mesh to about 100 mesh, a second sieve has a sieve size of about 4 mesh to about 100 mesh, and a third sieve has a sieve size of about 4 mesh to about 250 mesh. Another additional mode, the recovery shaker has a series of two mesh sieves and the sizes of sieve are from approximately 4 mesh to approximately 325 mesh. In yet another embodiment, the agitation system in the recovery system of the present material, it can be a gear agitator, a pump agitator, or a pneumatic agitator. In another additional embodiment, the agitation system creates movement in the drilling fluid or in the separation liquid. In yet another embodiment, the agitation system creates a suspension within the tank, whereby the solid particulate material is separated from the perforated solids. In another form, the agitation system creates the centrifugal force that helps in the separation process. In yet another embodiment, the agitation system creates the turbulent force within the cavity to separate the components of the mixture in the tank. The agitation system provides a pressure of approximately 2.27 kg (5 pounds) to approximately 90.8 kg (200 pounds), to separate the components of the mixture inserted in the recovery tank. The pressure is dependent on the viscosity of the drilling fluid and the weight of the solid particulate material and the perforated solids. The present invention also relates to an improved method that continuously recovers solid particulate material from perforated solids, fluids of drilling and mixtures thereof during drilling and excavation applications. The method comprises: a) the insertion of a mixture of solid particulate material, drilling fluids, and perforated solids of various sizes into a shale shaker having a pipe hydrocyclone system and at least one screen, and separating the solids drilling the mixture using the shale shaker screen, b) the direction of the mixture remaining in (a) towards a recovery apparatus having at least one agitation system and a recovery tank with a tapered base, and separating the solid particulate material, the drilling fluid and the fine particles of the perforated solids, using a force created by the agitation system; c) the direction of the remaining mixture in the recovery tank to the hydrocyclone pipe, where the fine particles of the perforated solids are separated from the fluid and solid particulates and; d) the direction of the particulate materials and the fluids in (c) to a recovery shaker having at least one screen, and separating the particulate material from the fluids, using the screen of the recovery shaker. In one embodiment, the method further comprises the step of providing a plurality of conduits for connecting the shale shaker to the apparatus of recovery and recovery apparatus to the recovery shaker. In yet another embodiment, the recovery tank further comprises at least one suction pipe and at least one discharge pipe and the method further comprises the step of transferring the mixture from the recovery tank to the hydrocyclone pipe system using the pipes of suction and discharge. In yet another embodiment, the recovery tank comprises a quick discharge valve and the method further comprises the step of discarding the drilled solids from the tapered base of the recovery tank. In still another embodiment of the invention, the method further comprises the step of recycling the drilling fluids by re-inserting the fluids from the recovery shaker to the recovery apparatus. In an additional mode, clean solid particulate materials can be reused with a pre-existing mud system. The method can also comprise the removal of the fine particles from the perforated solids from the shale shaker and from the recovery apparatus, and provide a container for retaining the perforated solids. In another additional embodiment, the recovery system comprises a structural framework for supporting the recovery apparatus and shale shakers and of recovery, and a motor control panel to operate the motor and pump. In a further embodiment, the shale shaker of the method of the present invention may have a series of three different mesh screens, a first screen having a screen size of 4 mesh to about 100 mesh, a second screen having a size from about 4 mesh screen to about 250 mesh, and a third screen having a screen size from about 4 mesh to about 250 mesh. In another additional embodiment, the recovery system has a pair of two mesh screens having a mesh size 4 to 325 mesh. The agitation system may be at least one pump agitator, at least one pneumatic agitator or at least one gear agitator. In still another embodiment, the present invention provides a method for recovery of solid particulate material such as spheres from drilling fluids, fine particles of perforated solids, perforated solids and mixtures thereof. In one embodiment, the fine particles of the perforated solids can not be greater than the circumference of the hydrocyclone system inlet which is approximately 3.8 cm (1.5 inches). The method comprises the steps of: a) inserting a mixture of material solid particulate, drilling fluids, fine particles of perforated solids and solids drilled within a recovery tank that has a stirring system, and separating the mixture using a force created by the agitation system, and allowing the drilled solids to gravitate towards the base of the tank; b) the transfer of the remaining mixture of the solid particulate material, the drilling fluids and the fine particles from the drilled solids to a pipe hydrocyclone system, where the fine particles of the drilled solids are separated from the fluid mixture material. particulate, and e) the separation of the drilling fluid from the remaining fluid / particulate mixture in the recovery shaker, to isolate and recover the solid particulate material.
BRIEF DESCRIPTION OF THE DRAWINGS A more complete appreciation of the present invention and many of the expected advantages thereof, will be readily understood by reference to the following description, when considered in connection with the accompanying drawings, in which: Figure 1 describes a perspective view of the. recovery system according to the present invention. Figures 2a and 2b describe a perspective view of two different embodiments of the recovery tank of the recovery apparatus of the present invention. Figure 3 depicts a diagrammatic view of the continuous recovery system and the related methods of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED MODALITIES Referring now to the drawings, wherein like reference numbers designate identical or corresponding parts throughout the views, and particularly to Figure 1, wherein a continuous recovery system according to the present invention, in general designated 1, comprises at least one shale shaker 20 with a plurality of screens 21 having varying screen sizes and a pipe hydrocyclone system 22; a recovery apparatus 10 comprising a recovery tank 12 having a cavity 15 and a tapered base 18, the tank 12 has an inlet 16 and an outlet 17, and at least one pump 11, and at least one motor 13; and at least one recovery shaker 30 having a plurality of screens 31 with varying mesh sizes. The recovery apparatus 10 further comprises a frame 40 for supporting the tank 12, the pump 11 and the engine 13. The recovery apparatus 10 may also have a motor control panel 42. The recovery tank 12 may also have an upper portion 14 for enclosing the cavity 15. In a further embodiment, the recovery tank 12 comprises four walls, each of the walls having upper and lower ends, and the lower end of the two The walls are tapered towards each other to form the tapered base 18. In yet another embodiment, the hydrocyclone system 2 of the shale shaker 20 comprises at least one cone 24. The mesh sizes of the screens 21 and 31, respectively, of the shaker and recovery shaker, 20 and 30, respectively, are from about 2 mesh to about 350 mesh. In a further embodiment, the shale shaker 20 has a series of three different 21 mesh screens, a first screen having a mesh size from about 4 mesh to about 100 mesh, a second screen having a mesh size from about 4 mesh to about 250 mesh, and a third screen size iz that has a mesh size from about 4 mesh to about 250 mesh. In a further embodiment, the recovery shaker 30 has a pair of two mesh screens, the 31 mesh screen having a mesh size of about 4 mesh to about 325 mesh Figure 2a describes a perspective view of one of the embodiments of the recovery tank 12 of the recovery apparatus 10 of the present invention. In this modality, the recovery tank 12 has at least four walls, 50, 51, 52 and 53, and the walls have upper ends 50a, 51a, 52a and 53a and lower ends 50b, 51b, 52b, 53b, respectively. The lower ends 51b and 53b are tapered towards each other to form a tapered base 18. The tank may have an upper portion 14 for enclosing the recovery tank 12. Figure 2b illustrates a perspective view of another embodiment of the recovery tank 12 of the recovery apparatus 10 of the present invention. In this embodiment, the recovery tank 12 comprises at least four walls, 50, 51, 52 and 53, and the walls have upper ends 50a, 51a, 52a and 53a and lower ends 50b, 51b, 52b and 53b, respectively. The lower ends 50b, 51b, 52b and 53b are tapered towards each other to form a tapered base 18.
Figure 3 illustrates a diagram of the recovery system 1 of the present invention and the method for continuously recovering the solid particulate material, such as the copolymer spheres 6 coming from the drilling fluids 7, the perforated solids 8 and mixtures thereof. The method comprising the steps of: A) inserting a mixture of solid particulate material 6, drilling fluid 7, and perforated solids 8 of various sizes into a shale shaker 20 having the pipe hydrocyclone system 22, and a plurality of screens 21 with varying mesh sizes; B) the separation of the larger perforated solids from the mixtures, using shale 21 sieves of shale 20; C) the direction of the remaining mixtures towards the recovery apparatus 10 having at least one pump 11, at least one motor 13 and one recovery tank 12, with a tapered base 18; D) the separation of the particulate material 6, the drilling fluid 7 and the perforated solids 8, using the centrifugal force created by the agitation system 11; E) the direction of the mixture remaining in the recovery tank 12 to the hydrocyclone pipe system 22, where the small perforated solids or fine particles of the perforated solids 8, are separated from the fluid 7 and the solid particulate materials.; and F) the address of the solid particulate material 6 and drilling fluid 7 towards a recovery shaker 30 having a plurality of mesh sizes 31 and separating solid particulates 6 from drilling fluid 7. The system further comprises conduits 70 from the connection from the shaker shaker 20 to the recovery apparatus 10 and the recovery apparatus 10 to the recovery shaker 30. In one embodiment, the recovery tank 12 further comprises at least one suction pipe and at least one discharge pipe, and further comprises the step of transferring the mixture from the recovery tank 12 to the hydrocyclone system 22 using the suction and discharge pipes. In yet another embodiment, the recovery tank comprises a quick discharge valve, and further comprises the step of removing the perforated solids from the tapered base 18 of the recovery tank 12, before directing the mixture to the hydrocyclone pipe system 22 . In a further embodiment, the method also comprises the step of G) recycling the drilling fluids 7 by reinstallation of the fluids 7 from the recovery shaker 30 to the recovery apparatus 10.
In yet another embodiment, the method also comprises H) reusing the clean solid particulate material 6 with an existing mud system. In a further embodiment, the method comprises the step of recovering the large and small perforated solids 8 from the shale agitator 20, and the recovery apparatus 10, and providing a container 80 for retaining the perforated solids 8. In a further embodiment, the shaker shaker 20 of the recovery system 1 of the present invention comprises a series of three different mesh screens 21, the mesh screens are in the range of about 4 mesh to about 325 mesh. In another additional embodiment, this recovery shaker 30 comprises a pair of mesh screens having a mesh size of about 4 to about 325. Obviously, numerous variations and modifications of the present invention are possible in light of the above teachings. It should be understood therefore that within the scope of the claims appended thereto, the invention may be practiced otherwise than specifically described herein.
It is noted that in relation to this date, the best method known to the applicant to carry out the aforementioned invention, is that which is clear from the present description of the invention.

Claims (39)

  1. CLAIMS Having described the invention as above, it is claimed as property contained in the following claims: 1. A recovery system, characterized in that it comprises: a recovery apparatus comprising a recovery tank having a cavity and a base that presents a inclined surface towards the cavity, the recovery tank has at least one inlet and at least one outlet, the recovery apparatus has at least one agitation system to create a force inside the recovery tank cavity, to assist in the separation of the components of a mixture of solid particulate material / perforated solids; a pipe hydrocyclone system coupled to at least one outlet; at least one recovery shaker, coupled to the pipe hydrocyclone system, and having at least one screen; and at least one shale shaker having at least one screen with varying mesh sizes, the pipe hydrocyclone system is located on the shale shaker; where a mixture of the solid particulate material, the drilling fluids, the thin particles of the drilled solids and the drilled solids, enters the shale shaker, and the drilled solids are separated from the mixture using the shale shaker screen, the remaining mixture then enters the recovery tank and is subsequently separated by the force created by the agitation system, the remaining particulate mixture, the drilling fluids and the fine particles of the perforated solids, are transferred to the pipe hydrocyclone system, where the fine particles of the perforated solids are separated from the remaining mixture using the centrifugal force created by the hydrocyclone system, the mixture then enters the recovery shaker where the drilling fluid is separated from the solid particulate materials. The recovery system according to claim 1, characterized in that the recovery tank has at least three walls, each of the walls has upper and lower ends, the lower ends of at least two walls are tapered towards each other , with which a cavity is formed inside the recovery tank. The recovery system according to claim 1, characterized in that the recovery tank further comprises at least one suction pipe and at least one suction pipe and at least one discharge pipe. Recovery further comprises a frame to support the tank and the agitation system. The recovery system according to claim 1, characterized in that the recovery apparatus further comprises a motor control panel. The recovery system according to claim 1, characterized in that the recovery tank further comprises an upper portion for enclosing the cavity. The recovery system according to claim 1, characterized in that the recovery tank comprises four walls, each of the walls has upper and lower ends, and the lower ends of two walls are tapered towards each other. The recovery system according to claim 1, characterized in that the recovery tank comprises four walls, each of the walls has upper and lower ends, and the lower ends of the four walls are tapered toward each other. The recovery system according to claim 1, characterized in that the hydrocyclone system comprises at least one cone. 9. The recovery system according to claim 1, characterized in that the hydrocyclone system comprises at least one cone. The recovery system according to claim 1, characterized in that it also comprises conduits for connecting the recovery apparatus, the shale shaker and the recovery shaker. The recovery system according to claim 1, characterized in that the mesh size of the screens in the shaker shaker and in the recovery shaker is from about 2 mesh to about 350 mesh. 12. The recovery system of according to claim 1, characterized in that the shale shaker has a series of three sieves of different mesh, a first sieve having a mesh size of about 4 mesh to about 100 mesh, a second sieve having a mesh size of about 4 mesh to about 250 mesh, and a third screen having a mesh size of about 4 mesh to about 250 mesh. The recovery system according to claim 1, characterized in that the recovery shaker has a pair of mesh sieves, the sieves have a mesh size of about 4 mesh to about 325 mesh. The recovery system according to claim 1, characterized in that the agitation system comprises at least one gear agitator. 15. The recovery system according to claim 1, characterized in that the agitation system comprises at least one pump agitator. 16. The recovery system according to claim 1, characterized in that the agitation system comprises at least one pneumatic agitator. 17. The recovery system according to claim 1, characterized in that the force created by the agitation system is centrifugal force. 18. The recovery system according to claim 1, characterized in that the force created by the agitation system is turbulent force. A recovery system, characterized in that it comprises a recovery apparatus comprising a recovery tank having a cavity and a base having a surface inclined toward the cavity, the recovery tank having at least one inlet and at least one outlet , the recovery apparatus has at least one agitation system to create a force within the recovery tank cavity, to assist in the separation of the components of a solid particulate / perforated solids mixture; a pipe hydrocyclone system coupled to at least one outlet; and at least one recovery shaker, coupled to the pipe hydrocyclone system, and having at least one screen; wherein a mixture of solid particulate material, drilling fluids, fine particles of perforated solids and perforated solids, enters the recovery tank, and are separated by the force created by the agitation system within the tank cavity, the drilled solids gravitate towards the base of the tank, the remaining mixture of particulate material, the drilling fluid and the fine particles of the drilled solids is then transferred to the pipe hydrocyclone system, where the fine particles of the drilled solids are separated from the mixture using the force created by the hydrocyclone system, and then a particulate / fluid mixture is transferred to the recovery shaker, where the drilling fluid is separated from the solid particulate materials. 20. The recovery system according to claim 19, characterized in that the recovery tank also comprises a discharge valve Quick to get rid of drilled solids from the base of the tank. 21. A method for continuously recovering solid particulate material from drilling fluids, fine particles of perforated solids, perforated solids and mixtures thereof, the method is characterized in that it comprises the steps of: a) inserting a mixture of solid particulate material , drilling fluids, fine particles of perforated solids and solids drilled within a shale shaker, having a pipe hydrocyclone system and at least one screen, and separating the drilled solids from the mixture using the shale shaker screen; b) directing the remnant mixture from (a) to a recovery apparatus having at least one agitation system and one recovery tank with a base, and separating the materials, fluids, and particles from the drilled solids using a force created by the agitation system inside the tank cavity; c) directing the remaining mixture in the recovery tank to the hydrocyclone pipe system, where the fine particles of the perforated solids are separated from the fluid mixture and solid particulate materials; Y d) directing the mixture of solid particulates and drilling fluid from (c) to a recovery shaker having at least one screen, and separating the solid particulate materials for the drilling fluid, using the recovery shaker screen. The method according to claim 21, further characterized in that it comprises the step of providing a plurality of conduits for connecting the shaker shaker to the recovery apparatus and the apparatus to the recovery shaker. The method according to claim 21, characterized in that the recovery tank further comprises at least one suction pipe and at least one discharge pipe, and the method further comprises the step of transferring the mixture from the recovery tank to the hydrocyclone system using the discharge and suction pipes. 24. The method according to claim 21, characterized in that the recovery tank further comprises a quick discharge valve and the method further comprises the step of disposing of the drilling solids from the base of the recovery tank. 25. The method according to claim 21, characterized in that it further comprises the step of recycling the drilling fluids by re-inserting the fluids from the recovery shaker to the recovery apparatus. 26. The method according to claim 21, characterized in that it further comprises the step of reusing the solid, clean particulate material with an existing mud system. The method according to claim 21, characterized in that it further comprises the removal of the perforated solids from the shale shaker and the recovery apparatus, and providing a container for retaining the perforated solids. 28. The method according to claim 21, characterized in that the solid particulate materials are spheres. 29. The method according to claim 21, characterized in that the recovery apparatus further comprises a frame to support the tank and the agitation system. 30. The method according to claim 21, characterized in that the recovery apparatus further comprises a motor control panel for operating the agitation system. 31. The method according to claim 21, characterized in that the recovery tank further comprises the upper portion for enclosing the cavity. 32. The method according to claim 21, characterized in that it further comprises a structural framework for supporting the recovery apparatus, the shale and recovery agitators. The method according to claim 21, characterized in that the shale shaker has a series of three different mesh screens, a first screen having a mesh size of about 4 mesh to about 100 mesh, a second screen having a mesh size of about 4 mesh to about 250 mesh, and a third screen having a mesh size of about 4 mesh to about 250 mesh. The method according to claim 21, characterized in that the recovery shaker has a pair of mesh sieves, the sieves have a mesh size of about 4 mesh to about 325 mesh. The method according to claim 21, characterized in that the agitation system comprises at least one gear agitator. 36. The method according to claim 21, characterized in that the agitation system comprises at least one pneumatic agitator. 37. The method according to claim 21, characterized in that the agitation system comprises at least one pump agitator. 38. The method according to claim 21, characterized in that the force created by the agitation system is centrifugal force. 39. The method according to claim 21, characterized in that the force created by the agitation system is turbulent force.
MXPA/A/2001/006880A 1999-01-08 2001-07-05 A recovery apparatus for drilling and excavation applications and related methods MXPA01006880A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09227523 1999-01-08

Publications (1)

Publication Number Publication Date
MXPA01006880A true MXPA01006880A (en) 2003-11-07

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