CN110952941A

CN110952941A - Drilling fluid treatment method and system

Info

Publication number: CN110952941A
Application number: CN201811134360.5A
Authority: CN
Inventors: 王先兵; 谢军; 杨欢; 张佳寅; 周朗; 毛庆全; 卢亚锋; 李文哲; 廖伟; 严俊涛
Original assignee: Petrochina Co Ltd
Current assignee: Petrochina Co Ltd
Priority date: 2018-09-27
Filing date: 2018-09-27
Publication date: 2020-04-03

Abstract

The invention discloses a drilling fluid treatment method and a drilling fluid treatment system, and belongs to the field of petroleum and natural gas drilling equipment. The system comprises: the device comprises a material storage device, a feeding device, an air compression device and a drying device; the storage device comprises a storage unit, a feeding unit, a discharging unit and a processing unit, wherein the feeding unit is positioned at the upper end of the storage unit, the discharging unit is positioned at the lower end of the storage unit, one end of the processing unit is connected with an air compression and drying device, one end of the discharging unit is connected with a feeding device, the other ends of the processing unit and the discharging unit are connected with the storage unit, and the feeding unit inputs drilling fluid materials and filters impurities in the drilling fluid; the storage unit stores drilling fluid materials; an air compression and drying device providing dry air to the process unit; the processing unit makes dust and dehumidifies the drilling fluid material through dry air to provide power for the unloading process; the discharging unit conveys the drilling fluid material from the material storage unit to the feeding device; the charging device configures the drilling fluid material into a drilling fluid.

Description

Drilling fluid treatment method and system

Technical Field

The invention relates to the technical field of petroleum and natural gas drilling equipment, in particular to a drilling fluid treatment method and a drilling fluid treatment system.

Background

The drilling fluid is called the blood of the well drilling, and plays important roles of balancing the formation pressure, suspending and carrying rock debris, cleaning and purifying a well hole, cooling a drilling tool, transmitting pressure and the like in the drilling engineering. In the development process of petroleum and natural gas, the drilling fluid materials are generally required to be loaded, unloaded, transported, stored, prepared and the like.

At present, the loading, unloading, carrying, storing and drilling fluid preparation work of drilling fluid materials is generally finished manually, however, the efficiency is low when the work is finished by manpower, workers are tired, the required workers are more, the labor cost is high, continuous operation cannot be carried out in severe weather and environment, the requirement for quickly preparing large-volume drilling fluid is difficult to meet, and particularly, the low-efficiency manual operation mode shows the defects during emergency rescue construction such as well killing operation, leaking stoppage operation and the like; aiming at particle and powdery drilling fluid materials, when the drilling fluid is prepared manually, although labor protection articles are worn, the harm of dust to the respiratory tract of a human body is still difficult to eliminate, the dust can pollute the working environment, part of the drilling fluid materials have corrosivity and toxicity, and the potential harm of the drilling fluid materials to the human body is difficult to eliminate during manual operation; the drilling fluid material is stored in a drilling site, a material house needs to be built, the required equipment is more, the occupied area is large, and the contradiction that the drilling fluid material is stored everywhere due to the small available area of a well field is more prominent in the drilling site of a platform cluster well; the particles and the powdery drilling fluid materials are usually contained in 25Kg or 50Kg plastic/paper packaging bags, the packaging bags are easy to damage, and the drilling fluid materials are easy to deteriorate and leak to pollute the surrounding environment, thereby influencing the normal use. Therefore, there is a need for a drilling fluid treatment system, which can safely, efficiently and conveniently realize the operations of loading, unloading, storing, transporting and preparing drilling fluid.

Disclosure of Invention

The embodiment of the invention provides a drilling fluid treatment method and a drilling fluid treatment system, and the technical scheme is as follows:

in one aspect, a drilling fluid treatment system is provided, the system comprising: the device comprises a material storage device, a feeding device, an air compression device and a drying device; the storage device comprises a storage unit, a feeding unit, an unloading unit and a processing unit, wherein the feeding unit is positioned at the upper end of the storage unit, the unloading unit is positioned at the lower end of the storage unit, one end of the processing unit is connected with the air compression and drying device, the other end of the processing unit is connected with the storage unit, one end of the unloading unit is connected with the feeding device, the other end of the unloading unit is connected with the storage unit, one end of the feeding unit is connected with the storage unit, and the other end of the feeding unit is connected with a material source device;

the feeding unit is used for conveying drilling fluid materials from the material source equipment to the material storage unit and filtering impurities in the drilling fluid;

the storage unit is used for storing the drilling fluid material;

the air compressing and drying device for providing dry air to the processing unit;

the processing unit is used for acquiring the air and the dry air in the drying device, making dust and dehumidifying the drilling fluid material in the storage unit through the dry air, and providing power for the process of conveying the drilling fluid material to the feeding device;

the discharging unit is used for conveying the drilling fluid material in the storage unit to the feeding device based on the power provided by the processing unit in the discharging process;

the feeding device is used for obtaining the drilling fluid material from the storage unit and configuring the drilling fluid based on the drilling fluid material.

Optionally, the storage device further comprises a weighing unit, and the weighing unit is respectively connected with the storage unit and the discharging unit;

the weighing unit is used for weighing the weight of the drilling fluid material in the storage unit; and on the other hand, the device is used for controlling the discharging speed of the drilling fluid material in the discharging process within a preset range according to the weight of the drilling fluid material stored in the storage unit, wherein the discharging speed refers to the speed of conveying the drilling fluid material to the feeding device in the discharging process.

Optionally, the processing unit comprises a fluidization disc and a sub-cylinder, the feeding unit comprises a feeding hole and a feeding filter, the storage unit comprises a storage tank and a skid-mounted body, the discharging unit comprises a discharging hole and a discharging ball valve,

the fluidization plate is positioned on the inner wall of the storage tank, the fluidization plate is connected with the air distribution cylinder, the air distribution cylinder is connected with the air compression and drying device, and the fluidization plate is used for carrying out fluidization treatment and arch breaking treatment on the drilling fluid materials in the storage tank and carrying out ash making and dehumidification on the drilling fluid materials through the dry air;

the discharge opening is positioned at the lower end of the material storage tank and is connected with the discharge ball valve;

the feed inlet is located the upper end of storage tank, feeding filter one end with the feed inlet is connected, and the other end is connected with material source equipment, the feeding filter is used for the filtering impurity in the drilling fluid material that material source equipment provided.

Optionally, the storage device further comprises a weighing unit, the weighing unit comprises an electronic platform scale and a controller, the electronic platform scale is positioned on the base of the skid-mounted body, the storage tank is positioned on the electronic platform scale, the controller is respectively connected with the electronic platform scale and the discharging ball valve,

the electronic platform scale is used for weighing the weight of the drilling fluid material in the storage tank and sending the weight of the drilling fluid material to the controller;

the controller is used for monitoring the discharging speed of the drilling fluid material according to the weight of the drilling fluid material and controlling the discharging speed within a preset range, wherein the discharging speed refers to the speed of conveying the drilling fluid material to the feeding device in the discharging process.

Optionally, the storage device further comprises a pressure relief unit, the pressure relief unit comprises a pressure relief opening and a dust removal filter, the pressure relief opening is connected with the dust removal filter, the dust removal filter is connected with the storage tank, and the dust removal filter is located at the upper end of the storage tank;

the pressure relief opening is used for exhausting air in the material storage tank;

and the dust removal filter is used for filtering dust in the air before the air in the storage tank is discharged.

Optionally, the processing unit further includes a pressure reducing cylinder, a second pressure gauge, a safety valve, and a plurality of air inlet valves, the number of the fluidization plates is plural, the plurality of air inlet valves are respectively connected to the plurality of fluidization plates, the safety valve is located at the top of the gas distributing cylinder,

each inlet valve for delivering drying air to a fluidizing tray connected to said each inlet valve.

Optionally, a plurality of locating parts are arranged on the electronic platform scale, and the locating parts are used for limiting the position of the storage tank within the preset position range of the electronic platform scale.

Optionally, the storing device further comprises an overhauling unit connected with the storing unit,

the maintenance unit is used for right the storage unit with the storage unit is connected the feeding unit the unit of unloading with the processing unit maintains and cleans.

Optionally, the overhaul unit comprises a humidity detector, an overhaul port and a safety ladder, the safety ladder is connected with the overhaul port, and the safety ladder and the overhaul port are located at the top end of the storage tank in the storage unit;

the humidity detector is used for detecting the humidity in the storage unit;

the access hole and the safety ladder are used for providing an inlet into the storage tank.

Optionally, the feeding device includes an exhaust port, a housing, a feeding funnel, and a feeding pipeline, the housing covers the feeding funnel, one end of the feeding pipeline is connected to the housing, the other end of the feeding pipeline is connected to the discharging unit, and the exhaust port is located on the housing;

the shell is a shell structure formed by surrounding hollow cylinders and is connected with the feeding hopper;

the charging hopper is used for preparing the drilling fluid according to the drilling fluid material;

the shell is used for discharging residual pressure gas of the charging hopper in the process of configuring the drilling fluid through the gas outlet.

In one aspect, a method for treating drilling fluid is provided, the method being used in a drilling fluid treatment system comprising: the device comprises a material storage device, a feeding device, an air compression device and a drying device; the storage device comprises a storage unit, a feeding unit, an unloading unit and a processing unit, wherein the feeding unit is positioned at the upper end of the storage unit, the unloading unit is positioned at the lower end of the storage unit, one end of the processing unit is connected with the air compression and drying device, the other end of the processing unit is connected with the storage unit, one end of the unloading unit is connected with the feeding device, the other end of the unloading unit is connected with the storage unit, one end of the feeding unit is connected with the storage unit, and the other end of the feeding unit is connected with a material source device;

the feeding unit conveys drilling fluid materials from the material source equipment to the material storage unit and filters impurities in the drilling fluid;

the storage unit stores the drilling fluid material;

the air compressing and drying device provides dry air to the process unit;

the processing unit acquires the air and the dry air in the drying device, makes ash and dehumidifies the drilling fluid material in the storage unit through the dry air, and provides power for the process of conveying the drilling fluid material to the feeding device;

the discharging unit conveys the drilling fluid material in the storage unit to the feeding device based on the power provided by the processing unit in the discharging process;

the feeding device obtains the drilling fluid material from the storage unit and configures the drilling fluid based on the drilling fluid material.

The technical scheme provided by the embodiment of the invention has the following beneficial effects:

in an embodiment of the present invention, the drilling fluid treatment system includes: the device comprises a material storage device, a feeding device, an air compression device and a drying device; the storage device comprises a storage unit, a feeding unit, a discharging unit and a processing unit, wherein the feeding unit is positioned at the upper end of the storage unit, the discharging unit is positioned at the lower end of the storage unit, one end of the processing unit is connected with an air compression and drying device, one end of the discharging unit is connected with a feeding device, the other ends of the processing unit and the discharging unit are connected with the storage unit, and the feeding unit inputs drilling fluid materials and filters impurities in the drilling fluid; the storage unit stores drilling fluid materials; an air compression and drying device providing dry air to the process unit; the processing unit makes dust and dehumidifies the drilling fluid material through dry air to provide power for the unloading process; the discharging unit conveys the drilling fluid material from the material storage unit to the feeding device; the charging device configures the drilling fluid material into a drilling fluid. The drilling fluid treatment system can automatically realize three main treatment processes of loading, unloading, storing and feeding of the drilling fluid material, realize the new technology and new process of fully-closed operation and automatic control in the field drilling fluid preparation process, can continuously operate under severe weather conditions, can uniformly, quickly and accurately prepare a large amount of drilling fluid in a short time, and improves the emergency treatment capacity during well killing and plugging operations. Moreover, through each unit in the storage device, the input, the filtration and the storage of the drilling fluid material are realized, and the processes of ash making, dehumidification and the like are performed on the drilling fluid material, so that the storage process of the drilling fluid material is safe and reliable, the personnel and environment safety is protected, the drilling fluid material is protected from deterioration, the whole treatment process of the drilling fluid material can be conveniently and quickly completed, and the safety, the economy and the operation efficiency of the drilling fluid material are improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of a drilling fluid treatment system according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a drilling fluid treatment system provided by an embodiment of the present invention;

FIG. 3 is a schematic diagram of a drilling fluid treatment system according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a drilling fluid treatment system provided by an embodiment of the present invention;

fig. 5 is a flow chart of a drilling fluid treatment method according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 is a schematic structural diagram of a drilling fluid treatment system according to an embodiment of the present invention. Referring to fig. 1, the system includes: the device comprises a material storage device, a feeding device, an air compression device and a drying device; the material storage device comprises a material storage unit, a feeding unit, a discharging unit and a processing unit, wherein the feeding unit is positioned at the upper end of the material storage unit, the discharging unit is positioned at the lower end of the material storage unit, one end of the processing unit is connected with the air compression and drying device, the other end of the processing unit is connected with the material storage unit, one end of the discharging unit is connected with the feeding device, the other end of the discharging unit is connected with the material storage unit, one end of the feeding unit is connected with the material storage unit, and the other end of the feeding unit is;

the storage unit is used for storing the drilling fluid material;

the air compressing and drying device is used for providing dry air for the processing unit;

the processing unit is used for acquiring the air and the dry air in the drying device, making ash and dehumidifying the drilling fluid material in the storage unit through the dry air, and providing power for the process of conveying the drilling fluid material to the feeding device;

In one possible design, the storage device further comprises a weighing unit, and the weighing unit is respectively connected with the storage unit and the discharging unit;

the weighing unit is used for controlling the discharging speed of the drilling fluid material in the discharging process within a preset range according to the weight of the drilling fluid material stored in the storage unit, wherein the discharging speed refers to the speed of conveying the drilling fluid material to the feeding device in the discharging process.

In one possible design, the processing unit includes a fluidization tray 16 and a gas separation cylinder 22, the feed unit includes a feed inlet 17 and a feed filter 20, the storage unit includes a storage tank 26 and a skid 7, the discharge unit includes a discharge port 28 and a discharge ball valve 27,

the fluidization plate 16 is positioned on the inner wall of the storage tank 26, the fluidization plate 16 is connected with the air distribution cylinder 22, the air distribution cylinder 22 is connected with the air compression and drying device, and the fluidization plate 16 is used for carrying out fluidization treatment and arch breaking treatment on the drilling fluid material in the storage tank 26 and carrying out ash making and dehumidification on the drilling fluid material through the dry air;

the discharge opening 28 is located at the lower end of the storage tank 26, and the discharge opening 28 is connected with the discharge ball valve 27;

the feed inlet 17 is located at the upper end of the storage tank 26, one end of the feed filter 20 is connected to the feed inlet 17, the other end is connected to the source device, and the feed filter 20 is used for filtering out impurities in the drilling fluid material provided by the source device.

In one possible design, the storing device further comprises a weighing unit, the weighing unit comprises an electronic platform scale 25 and a controller 5, the electronic platform scale 25 is located on the base 1 of the skid-mounted body 7, the storage tank 26 is located on the electronic platform scale 25, the controller 5 is respectively connected with the electronic platform scale 25 and the discharging ball valve 27,

the electronic platform scale 25 is used for weighing the weight of the drilling fluid material in the storage tank 26 and sending the weight of the drilling fluid material to the controller 5;

the controller 5 is configured to monitor a discharge speed of the drilling fluid material according to the weight of the drilling fluid material, and control the discharge speed within a preset range, where the discharge speed is a speed at which the drilling fluid material is conveyed to the feeding device during a discharge process.

In a possible design, the storage device further comprises a pressure relief unit, the pressure relief unit comprises a pressure relief opening 11 and a dust removal filter 12, the pressure relief opening 11 is connected with the dust removal filter 12, the dust removal filter 12 is connected with the storage tank 26, and the dust removal filter 12 is located at the upper end of the storage tank 26;

the pressure relief port 11 is used for discharging air in the material storage tank 26;

the dust removing filter 12 is used for filtering dust in the air before discharging the air in the storage tank 26.

In a possible design, the processing unit further comprises a decompression cylinder 23, a second pressure gauge 21, a safety valve at the top of the branch cylinder 22, and a plurality of intake valves 24, the number of fluidization plates 16 is plural, the plurality of intake valves 24 are respectively connected with the plurality of fluidization plates 16,

each inlet valve 24 for feeding drying air to the fluidizing tray 16 connected to the each inlet valve 24.

In a possible design, a plurality of position-limiting members 3 are disposed on the electronic platform scale 25, and the position-limiting members 3 are used for limiting the position of the material storage tank 26 within a preset position range of the electronic platform scale 25.

In one possible design, the magazine device further comprises a maintenance unit, which is connected to the magazine unit,

the maintenance unit is used for maintaining and cleaning the storage unit and the internal structures of the storage tanks connected with the storage unit, such as the feeding unit, the discharging unit and the processing unit.

In one possible design, the inspection unit comprises a moisture detector 13, an inspection opening 15 and a safety ladder 14, the safety ladder 14 is connected with the inspection opening 15, and the safety ladder 14 and the inspection opening 15 are positioned at the top end of a storage tank 26 in the storage unit;

the humidity detector 13 is used for detecting the humidity in the storage unit;

the access opening 15 and the safety ladder 14 provide access to the storage tank 26.

In one possible design, the charging device comprises a gas outlet 36, a housing 37, a charging hopper 38 and a charging line 34, the housing 37 being housed above the charging hopper 38, the charging line 34 being connected at one end to the housing 37 and at the other end to the discharge unit, the gas outlet 36 being located on the housing 37;

the shell 37 is a shell 37 structure enclosed by a hollow cylinder, and the shell 37 is connected with the charging hopper 38;

the charging hopper 38 is used for preparing drilling fluid according to the drilling fluid material;

the housing 37 is used for discharging residual pressure gas of the charging hopper 38 in the process of distributing the drilling fluid through the gas outlet 36.

Fig. 2 is a schematic structural diagram of a drilling fluid treatment system according to an embodiment of the present invention. Referring to fig. 2, the system includes: the device comprises a material storage device, a feeding device, an air compression device and a drying device; the material storage device is respectively connected with the feeding device, the air compression device and the drying device;

(1-1) the material storage device, which comprises a material storage unit, a feeding unit, a discharging unit and a processing unit, wherein the feeding unit is positioned at the upper end of the material storage unit, the discharging unit is positioned at the lower end of the material storage unit, one end of the processing unit is connected with the air compression and drying device, the other end of the processing unit is connected with the material storage unit, one end of the discharging unit is connected with the feeding unit, the other end of the discharging unit is connected with the material storage unit, one end of the feeding unit is connected with the material storage unit, and the other end of the feeding unit is connected with;

the feeding unit is used for conveying drilling fluid materials from the material source equipment to the material storage unit and filtering impurities in the drilling fluid; the storage unit is used for storing the drilling fluid material;

wherein, this feed unit includes feed inlet 17 and feeding filter 20, and this storage unit includes storage tank 26 and sled installation body 7, and this feeding filter 20 is located the right-hand member side of this sled installation body 7, and this feed inlet 17 is located the upper end of this storage tank 26, and this feeding filter 20 one end is connected with this feed inlet 17, and the other end is connected with the material source equipment, and this feeding filter 20 is arranged in the impurity in the drilling fluid material of filtering this material source equipment and providing. Specifically, the feed port 17 may be located at the top right end of the storage tank 26, and the feed port 17 and the feed filter 20 may be connected by a feed line 18.

Wherein, this storage tank 26 can adopt ceramic inner wall of glaze and stainless steel's shell material, and wherein, this ceramic inner wall of glaze both can be able to bear or endure the acid-base corrosion of chemical material, can prevent again that chemical material from pasting on this internal face to the stability and the security of the storage of this drilling fluid material have been improved.

The feeding unit may further include a feeding ball valve 19, one end of the feeding ball valve 19 is connected to the feeding filter 20, the other end of the feeding ball valve is connected to the feeding line 18, the feeding filter 20 is used for filtering impurities in drilling fluid materials, the drilling fluid materials are transported to the right side of the skid-mounted body 7, the feeding ball valve 19 is opened, and an operator in the field can blow the drilling fluid materials into the storage tank 26 through the feeding hole 17 through an air source.

Wherein, the drilling fluid material is generally transported by a sealed canned transport vehicle, the material source device may be a canned transport vehicle, as shown in fig. 2, the canned transport vehicle is provided with a pressure-resistant hose line 33 and a canned vehicle discharge opening 28, the canned transport vehicle includes a gas source, when the gas source is opened, the gas source blows the drilling fluid material towards the canned vehicle discharge opening 28, the drilling fluid material is conveyed through the pressure-resistant hose line 33 and blown to the feeding filter 20, the feeding filter 20 filters large-volume impurities in the drilling fluid material, and the drilling fluid material passes through the feeding line 18 once and enters the storage tank 26 from the feeding port 17. The storage tank 26 is used to store the drilling fluid material.

In an embodiment of the present invention, the processing unit is configured to obtain dry air in the air compressing and drying device, and perform ash making and dehumidification on the drilling fluid material through the dry air.

The processing unit comprises a fluidization plate 16 and a branch cylinder 22, the fluidization plate 16 is positioned on the inner wall of the storage tank 26, the fluidization plate 16 is connected with the branch cylinder 22, the branch cylinder 22 is connected with the air compression and drying device, and the air compression and drying device is used for supplying drying air to the storage device; the fluidizing tray 16 is used for fluidizing and arching the drilling fluid material in the storage tank 26, and for making dust and dehumidifying the drilling fluid material by the dry air.

After the drilling fluid material is conveyed to the storage tank 26, the storage tank 26 can store the drilling fluid material, the inner wall of the storage tank 26 can be provided with a plurality of fluidization disks 16, the air distribution cylinder 22 can be mounted on the base 1 of the storage tank 26 at the right end of the storage tank 26, the air distribution cylinder 22 is connected with the fluidization disks 16 through pressure-resistant pipelines, the air distribution cylinder 22 is used for conveying dry air from an air compression and drying device to the fluidization disks 16, and the fluidization disks 16 are specifically used for carrying out fluidization treatment and arch breaking treatment on the drilling fluid material, and carrying out ash making and dehumidification on the drilling fluid material in the storage tank 26 according to the dry air.

It should be noted that, during the storage in the storage tank 26, the air-distributing cylinder 22 and the fluidizing plate 16 can periodically perform the above-mentioned fluidizing, arch breaking, ash making and dehumidifying processes. The drilling fluid material is generally a granular and dusty chemical material, and is easy to agglomerate in the storage process of the storage tank 26, and the ash making and dehumidifying treatment process is realized through the fluidization disc 16 and the gas distributing cylinder 22, so that the environment in the storage tank 26 can be kept dry, and the drilling fluid material is prevented from being hardened and deteriorated.

Further, the processing unit further comprises a decompression cylinder 23, a second pressure gauge 21, a safety valve at the top of the branch cylinder 22, and a plurality of air intake valves 24, the number of the fluidization plates 16 is plural, the plurality of air intake valves 24 are respectively connected with the plurality of fluidization plates 16,

each air inlet valve 24 for supplying the drying air to the fluidizing plate 16 connected to the each air inlet valve 24, the decompression cylinder 23 for adjusting the supply pressure of the compressed drying air, the second pressure gauge 21 for monitoring and displaying the pressure value of the compressed air; if the air pressure in the cylinder block 22 is too high, the pressure is automatically released by a safety valve located at the top of the cylinder block 22, which is a safety valve with a certain fixed pressure resistance value and is used to protect the pipeline and the storage tank 26 from high pressure. In addition, the branch cylinder 22 may further be provided with an air release valve, and the air release valve is used for releasing the residual air in the branch cylinder 22 after the ash making and dust removing processes are finished.

Wherein the air compressing and drying apparatus is connected to the decompression cylinder 23, delivers the dry air to the decompression cylinder 23, decompresses the dry air through the decompression cylinder 23, and then delivers the dry air to the fluidization plate 16 connected to each air inlet valve 24 through the plurality of air inlet valves 24, respectively, so that the fluidization plate 16 implements the processes of ash making and dust removing based on the dry air.

In the embodiment of the present invention, the storage device further includes a pressure relief unit, the pressure relief unit includes a pressure relief port 11 and a dust removal filter 12, the pressure relief port 11 is connected to the dust removal filter 12, the dust removal filter 12 is connected to the storage tank 26, and the dust removal filter 12 is located at the upper end of the storage tank 26; the pressure relief port 11 is used for discharging air in the material storage tank 26; the dust removing filter 12 is used for filtering dust in the air before discharging the air in the storage tank 26.

The pressure relief opening 11 can be located on the left side of the top end of the storage tank 26, and the dust removing filter 12 is located inside the storage tank 26 and connected to the pressure relief opening 11. The dust removing filter 12 is used for discharging air and water vapor in the storage tank 26 and blocking dust and particles in the storage tank 26, so that the external environment is protected from dust pollution.

In one possible design, the pressure relief unit may further comprise a first pressure gauge 9 and a pressure relief ball valve 8, the first pressure gauge 9 being used to monitor and display the pressure value inside the accumulator tank 26, and the pressure relief unit may further comprise a safety valve which can protect the pipeline and the accumulator tank 26 from high pressure. The pressure relief ball valve 8 is used for regulating the pressure in the storage tank 26 by controlling the removal of gas.

In a possible design, the lower end of the storage tank 26 can be provided with a foot stand 6 of the storage tank 26 to further support and stabilize the storage tank 26.

In a possible design, the storage device further comprises an overhaul unit, the overhaul unit is connected with the storage unit, and the overhaul unit is used for maintaining and cleaning the storage unit and the internal structures of the storage tanks, such as the feeding unit, the discharging unit and the processing unit, which are connected with the storage unit.

Wherein, this maintenance unit includes access hole 15, emergency ladder 14 and moisture detector 13, this moisture detector 13 for the humidity in this storage tank 26 of monitoring and display, this access hole 15 and this emergency ladder 14 are used for providing the entry that gets into this storage tank 26. This access hole 15 is located the central point on the top of this storage tank 26, and this access hole 15 adopts the top cap of taking sealing function, and this access hole 15's size holds alone at least and passes through, and this access hole 15 is connected with this emergency ladder 14, and this emergency ladder 14 is located the inside of this storage tank 26, and when needs operation personnel manual maintenance, the operation personnel can pass through this access hole 15 and emergency ladder 14, enter into and overhaul and clear up the operation in this storage tank 26.

In addition, the service unit may further include a safety ladder 14 located at the back of the storage tank 26, in addition to the safety ladder 14 located inside the storage tank 26, and the safety ladder 14 located at the back of the storage tank 26 is used for carrying the operator so that the operator can climb from the ground to the service opening 15 of the storage tank 26.

In an embodiment of the invention, the discharging unit is used for conveying the drilling fluid material in the storage unit to the feeding device based on the power provided by the processing unit in the discharging process; the processing unit is also used for providing power for the process of conveying the drilling fluid material to the feeding device.

Wherein, the discharging unit comprises a discharging opening 28 and a discharging ball valve 27, the discharging opening 28 is positioned at the lower end of the storage tank 26, and the discharging opening 28 is connected with the discharging ball valve 27; the discharge opening 28 is used for conveying the drilling fluid material to a charging device.

In the embodiment of the present invention, the operator can transfer the drilling fluid material in the storage tank 26 to the charging device, at this time, the discharge ball valve 27 is opened, the fluidization plate 16 in the processing unit is connected to the air cylinder 22, and obtains the dry air in the air cylinder 22, and the drilling fluid material is fluidized and arch-broken by the dry air, so as to provide power for the discharge transfer process, so that the drilling fluid material can be transferred from the discharge opening 28 to the charging device.

In one possible design, the storage device further comprises a weighing unit, and the weighing unit is respectively connected with the storage unit and the discharging unit; the weighing unit is used for controlling the discharging speed of the drilling fluid material in the discharging process within a preset range according to the weight of the drilling fluid material stored in the storage unit, wherein the discharging speed refers to the speed of conveying the drilling fluid material to the feeding device in the discharging process.

The weighing unit comprises an electronic platform scale 25 and a controller 5, the electronic platform scale 25 is positioned on the base 1 of the skid-mounted body 7, the material storage tank 26 is positioned on the electronic platform scale 25, the controller 5 is respectively connected with the electronic platform scale 25 and the discharge ball valve 27, and the electronic platform scale 25 is used for weighing the weight of the drilling fluid material in the material storage tank 26 and sending the weight of the drilling fluid material to the controller 5; the controller 5 is configured to monitor a discharge speed of the drilling fluid material according to the weight of the drilling fluid material, and control the discharge speed within a preset range, where the discharge speed is a speed at which the drilling fluid material is conveyed to the feeding device during a discharge process.

The Controller 5 may be a PLC (Programmable Logic Controller, Programmable Controller 5) operation panel. The processing process of the discharging device on the drilling fluid materials is controlled through operation logic, control logic and the like which are designed and stored in advance in the PLC operation panel.

Further, a plurality of limiting members 3 are disposed on the electronic platform scale 25, and the plurality of limiting members 3 are used for limiting the position of the storage tank 26 within a preset position range of the electronic platform scale 25. In a possible design, the number of the limiting parts 3 can be 4, one of each of the four corners of the electronic platform scale 25 limits the movement of the storage tank 26 through the limiting parts 3, and meanwhile, the electronic platform scale 25 and the storage tank 26 are fixed through the limiting parts 3 in the process of transportation, so that the shaking of the whole storage device is avoided, and the safety and the reliability of the drilling fluid processing system are further improved.

The weighing unit may further comprise a display screen 4 of the electronic platform scale 25, and the display screen of the electronic platform scale 25 is used for displaying the weighed weight of the electronic platform scale 25 in real time.

The controller 5 may obtain the weight weighed by the electronic platform scale 25 in real time, calculate the discharge speed of the drilling fluid material during the discharge process according to the weight obtained in real time, and adjust the discharge speed to the preset range by adjusting the opening of the discharge ball valve 27 according to the preset range when the discharge speed is not within the preset range.

In one possible design, the weighing unit is also used to weigh the weight of drilling fluid material in the storage tank 26 as it is transferred from the tanker truck to the storage tank 26 to record in real time the rate at which drilling fluid material is unloaded from the tanker truck and the weight of drilling fluid material actually unloaded.

In a possible design, the base 1 of the skid-mounted body 7 may further be provided with a lifting lug 2, so that the skid-mounted body 7 can be lifted or moved by the lifting lug 2, and the whole skid-mounted body 7 can be conveniently carried by an operator.

(1-2) the air compressing and drying device for supplying dry air to the process unit in the stocker;

as shown in fig. 3, the air compressing and drying means includes an air compressor 31 and an air dryer 32, one end of the air dryer 32 is connected to the air compressor 31, the other end is connected to the decompression cylinder 23, and the fluidization plate 16 and the air intake valve 24 can be connected by a pressure-proof line. The air compressor 31 compresses air in the environment, and then sends the compressed air to the air dryer 32, and the air dryer 32 performs a drying process to obtain dry air, and the air dryer 32 sends the dry air to the decompression cylinder 23.

It should be noted that the air compressor 31 and the air dryer 32 are generally air compression and drying apparatuses of an industrial general type. The compressed air generated by the air compressor 31 is used for removing moisture in the compressed air through the adsorption type air dryer 32, and the dried compressed air is used as conveying power of particles and powdery chemical materials, so that power can be provided in the unloading process, the unloading process is accelerated, and drilling fluid is rapidly prepared; the chemical materials in the storage tank 26 can be swept and dehumidified by the drying air source, so that the interior of the storage tank 26 is kept dry, and the hardening and deterioration of the chemical materials are prevented; in addition, the operator can select the type and number of the air compressors 31 according to the workload and the material characteristics, and select the type of the adsorption air dryer 32 according to the temperature, humidity and dew point requirements of the compressed air in the operation area.

(1-3) the feeding device is used for obtaining the drilling fluid material from the storage device and configuring the drilling fluid based on the drilling fluid material;

in one possible design, as shown in fig. 4, the charging device comprises a vent 36, a housing 37, a charging hopper 38 and a charging line 34, the housing 37 being housed over the charging hopper 38, the charging line 34 being connected at one end to the housing 37 and at the other end to the discharge unit, the vent 36 being located on the housing 37; the shell 37 is a shell 37 structure enclosed by a hollow cylinder, and the shell 37 is connected with the charging hopper 38; the charging hopper 38 is used for preparing drilling fluid according to the drilling fluid material; the housing 37 is used for discharging residual pressure gas of the charging hopper 38 in the process of distributing the drilling fluid through the gas outlet 36.

When the discharge ball valve is opened, the drilling fluid material is output from the storage tanks 26 through the discharge port 28, conveyed to the elbow feed line 34 through the discharge ball valve 27 and the pressure-resistant hose line 33, and conveyed to the feed hopper 38 through the elbow feed line 34, and meanwhile, the feed hopper 38 can also receive a plurality of drilling fluid materials from a plurality of storage tanks 26 to be configured according to the plurality of drilling fluid materials, and finally the drilling fluid is obtained.

Further, the feeding line 34 can be an elbow feeding line, the housing 37 can be further provided with a viewing port 35, the viewing port 35 can be made of tempered glass and used for viewing the feeding condition in the feeding hopper, both the viewing port 35 and the feeding line 34 can be located at the top of the housing 37, and the exhaust port 36 is used for filtering dust and only allowing air and vapor to be exhausted to the environment.

For clarity, the functions of the above structures in the respective operation flows will be described in further detail only by the following incoming material unloading flows, ash making and dust removing flows, and drilling fluid configuration flows.

For the incoming unloading process, the incoming unloading process refers to the transfer of drilling fluid material from the tanker to the storage tank 26. This process is illustrated in fig. 2. The canning transport vehicle conveys granular and powdery chemical materials, namely drilling fluid materials to a well site, a discharge opening 29 of the canning transport vehicle and a pressure-resistant hose line 30 of the canning transport vehicle are sequentially connected with a feeding pipeline 18 of a storage tank 26, and a feeding ball valve 19 and a pressure relief ball valve 8 of the storage tank 26 are opened; the drilling fluid material in the car is blown to the storage tank 26 through the air supply of powder transportation tank car in, the bulky impurity in the chemical material of feeding filter 20 filtering, and the air in the storage tank 26 is got rid of to dust removal filter 12 and pressure release 11, and electronic platform balance 25 shows the chemical material total weight of accepting.

For the ash making and dust removing process, as shown in fig. 3. The pressure-resistant hose line 33 is connected with the air compressor 31, the adsorption type air dryer 32, the air distribution cylinder 22 and the fluidization disc 16, and dry compressed air generated by the air compressor 31 and the air dryer 32 enters the storage tank 26 through the air distribution cylinder 22 and the fluidization disc 16 to regularly fluidize, arch break and purge the chemical materials in the storage tank 26, so that the effects of ash making and dehumidification are achieved, and the chemical materials can be prevented from hardening and deteriorating; the dust removing filter 12 and the pressure relief port 11 discharge the compressed air in the storage tank 26.

For the formulated drilling fluid flow, as shown in fig. 4. Dry compressed air generated by an air compressor 31 and an air dryer 32 enters the storage tank 26 through the air distributing cylinder 22 and the fluidizing disc 16 to fluidize and break the arch of the chemical materials in the storage tank 26, and a certain pressure value in the storage tank 26 is kept; the total amount and the feeding speed of chemical materials needed for preparing the drilling fluid are set through a PLC programmable control operation panel; after the material storage tank 26 reaches the preset working pressure, the butterfly valve of the weighting pump feeding hopper 38 which is already set up in circulation is opened, the air distributing cylinder 22 is opened to the air inlet valve 24 of the material conveying pipeline, the PLC control operation panel is started, the opening degree of the discharging ball valve 27 is controlled by the PLC, the feeding speed and the total amount of the prepared drilling fluid are controlled, the automatic, closed and dust-free operation of the whole process is realized, and the drilling fluid is uniformly, quickly and accurately prepared.

Fig. 5 is a flow chart of a drilling fluid treatment method according to an embodiment of the present invention. The method is applied in a drilling fluid treatment system, see fig. 5, comprising: the device comprises a material storage device, a feeding device, an air compression device and a drying device; the material storage device comprises a material storage unit, a feeding unit, a discharging unit and a processing unit, wherein the feeding unit is positioned at the upper end of the material storage unit, the discharging unit is positioned at the lower end of the material storage unit, one end of the processing unit is connected with the air compression and drying device, the other end of the processing unit is connected with the material storage unit, one end of the discharging unit is connected with the feeding device, the other end of the discharging unit is connected with the material storage unit, one end of the feeding unit is connected with the material storage unit, and the other end of the feeding unit is;

501. the feeding unit conveys drilling fluid materials from the material source equipment to the material storage unit and filters impurities in the drilling fluid;

502. the storage unit stores the drilling fluid material;

503. the air compressing and drying device provides dry air to the processing unit;

504. the processing unit acquires the air and the dry air in the drying device, makes ash and dehumidifies the drilling fluid material in the storage unit through the dry air, and provides power for the process of conveying the drilling fluid material to the feeding device;

505. the discharging unit conveys the drilling fluid material in the storage unit to the feeding device based on the power provided by the processing unit in the discharging process;

506. the charging device obtains the drilling fluid material from the storage unit and configures the drilling fluid based on the drilling fluid material.

In one possible design, the storage device further comprises a weighing unit, and the weighing unit is respectively connected with the storage unit and the discharging unit; the method further comprises the following steps:

the weighing unit is used for weighing the weight of the drilling fluid material in the storage unit, and controlling the discharging speed of the drilling fluid material in the discharging process within a preset range according to the weight of the drilling fluid material stored in the storage unit, wherein the discharging speed refers to the speed of conveying the drilling fluid material to the feeding device in the discharging process.

In one possible design, the processing unit comprises a fluidizing tray 16 and a distributing cylinder 22, the feeding unit comprises a feeding port 17 and a feeding filter 20, the storage unit comprises a storage tank 26 and a skid body 7, the discharging unit comprises a discharging port 28 and a discharging ball valve 27, the fluidizing tray 16 is positioned on the inner wall of the storage tank 26, the fluidizing tray 16 is connected with the distributing cylinder 22, the distributing cylinder 22 is connected with the air compressing and drying device, the discharging port 28 is positioned at the lower end of the storage tank 26, and the discharging port 28 is connected with the discharging ball valve 27; the feeding port 17 is located at the upper end of the storage tank 26, one end of the feeding filter 20 is connected to the feeding port 17, and the other end is connected to the source device, correspondingly, the method further comprises:

the fluidization plate 16 is used for carrying out fluidization treatment and arch breaking treatment on the drilling fluid materials in the storage tank 26, and carrying out ash making and dehumidification on the drilling fluid materials through the dry air;

the feed filter 20 is used to filter out impurities in the drilling fluid material provided by the source equipment.

In one possible design, the storage device further comprises a weighing unit, the weighing unit comprises an electronic platform scale 25 and a controller 5, the electronic platform scale 25 is located on the base 1 of the skid-mounted body 7, the storage tank 26 is located on the electronic platform scale 25, the controller 5 is respectively connected with the electronic platform scale 25 and the discharge ball valve 27, and the method further comprises:

the electronic platform scale 25 weighs the weight of the drilling fluid material in the storage tank 26 and sends the weight of the drilling fluid material to the controller 5;

the controller 5 monitors the discharge speed of the drilling fluid material according to the weight of the drilling fluid material, and controls the discharge speed within a preset range, wherein the discharge speed refers to the speed of conveying the drilling fluid material to the feeding device in the discharge process.

In a possible design, the storage device further comprises a pressure relief unit, the pressure relief unit comprises a pressure relief opening 11 and a dust removal filter 12, the pressure relief opening 11 is connected with the dust removal filter 12, the dust removal filter 12 is connected with the storage tank 26, and the dust removal filter 12 is located at the upper end of the storage tank 26; the method further comprises the following steps:

the dust removing filter 12 filters dust in the air before discharging the air in the storage tank 26;

the pressure relief port 11 discharges air in the accumulator tank 26.

In a possible design, the processing unit further includes a decompression cylinder 23, a second pressure gauge 21, a safety valve and a plurality of air inlet valves 24, the number of the fluidization plates 16 is plural, the plurality of air inlet valves 24 are respectively connected with the plurality of fluidization plates 16, the safety valve is located at the top of the branch cylinder 22, and the method further includes:

each inlet valve 24 delivers drying air to the fluidizing tray 16 to which each inlet valve 24 is connected.

In a possible design, a plurality of position-limiting members 3 are provided on the electronic platform scale 25, and the method further includes:

the position of the material storage tank 26 is limited within a preset position range of the electronic platform scale 25 by the plurality of limiting members 3.

In one possible design, the storage device further includes a maintenance unit connected to the storage unit, and the method further includes:

the maintenance unit maintains and cleans the material storage unit, the feeding unit connected with the material storage unit, the discharging unit and the processing unit.

All the above optional technical solutions may be combined arbitrarily to form the optional embodiments of the present disclosure, and are not described herein again.

It should be noted that: in the drilling fluid processing system provided in the above embodiment, when the drilling fluid is processed, only the division of the above functional modules is taken as an example, and in practical application, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the equipment is divided into different functional modules, so as to complete all or part of the above described functions. In addition, the drilling fluid processing system and the drilling fluid processing method provided by the embodiment belong to the same concept, and the specific implementation process is described in the method embodiment and is not described herein again.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A drilling fluid treatment system, characterized in that the system comprises: the device comprises a material storage device, a feeding device, an air compression device and a drying device; the storage device comprises a storage unit, a feeding unit, an unloading unit and a processing unit, wherein the feeding unit is positioned at the upper end of the storage unit, the unloading unit is positioned at the lower end of the storage unit, one end of the processing unit is connected with the air compression and drying device, the other end of the processing unit is connected with the storage unit, one end of the unloading unit is connected with the feeding device, the other end of the unloading unit is connected with the storage unit, one end of the feeding unit is connected with the storage unit, and the other end of the feeding unit is connected with a material source device;

the storage unit is used for storing the drilling fluid material;

2. The system according to claim 1, wherein the storage device further comprises a weighing unit, one end of the weighing unit is connected with the storage unit, and the other end of the weighing unit is connected with the discharging unit;

3. The system of claim 1, wherein the processing unit comprises a fluidization tray (16) and a de-airing cylinder (22), the feeding unit comprises a feeding port (17) and a feeding filter (20), the storage unit comprises a storage tank (26) and a skid (7), the discharging unit comprises a discharging port (28) and a discharging ball valve (27),

the fluidization disc (16) is positioned on the inner wall of the storage tank (26), the fluidization disc (16) is connected with the air distribution cylinder (22), the air distribution cylinder (22) is connected with the air compression and drying device, and the fluidization disc (16) is used for carrying out fluidization treatment and arch breaking treatment on the drilling fluid materials in the storage tank (26) and carrying out ash making and dehumidification on the drilling fluid materials through the dry air;

the discharge opening (28) is positioned at the lower end of the storage tank (26), and the discharge opening (28) is connected with the discharge ball valve (27);

the feed inlet (17) is located the upper end of storage tank (26), feed filter (20) one end with feed inlet (17) are connected, and the other end is connected with material source equipment, feed filter (20) are used for filtering impurity in the drilling fluid material that material source equipment provided.

4. The system according to claim 3, characterized in that the magazine further comprises a weighing unit comprising an electronic platform scale (25) and a controller (5), the electronic platform scale (25) being located on the base (1) of the skid (7), the storage tank (26) being located on the electronic platform scale (25), the controller (5) being connected to the electronic platform scale (25) and the discharge ball valve (27), respectively,

the electronic platform scale (25) is used for weighing the weight of the drilling fluid material in the storage tank (26) and sending the weight of the drilling fluid material to the controller (5);

the controller (5) is used for monitoring the discharging speed of the drilling fluid material according to the weight of the drilling fluid material and controlling the discharging speed within a preset range, wherein the discharging speed refers to the speed of conveying the drilling fluid material to the feeding device in the discharging process.

5. The system according to claim 3, wherein the storage device further comprises a pressure relief unit, the pressure relief unit comprises a pressure relief port (11) and a dust removal filter (12), the pressure relief port (11) is connected with the dust removal filter (12), the dust removal filter (12) is connected with the storage tank (26), and the dust removal filter (12) is located at the upper end of the storage tank (26);

the pressure relief opening (11) is used for discharging air in the material storage tank (26);

the dust removal filter (12) is used for filtering dust in the air before the air in the storage tank (26) is discharged.

6. The system according to claim 3, characterized in that said processing unit further comprises a decompression cylinder (23), a second pressure gauge (21), a safety valve and a plurality of admission valves (24), said fluidization disc (16) being in plurality, said plurality of admission valves (24) being respectively associated with said plurality of fluidization discs (16), said safety valve being located at the top of the distribution cylinder (22),

each air inlet valve (24) for feeding drying air to a fluidising disc (16) connected to said each air inlet valve (24).

7. The system according to claim 4, wherein the electronic platform scale (25) is provided with a plurality of stoppers (3), and the stoppers (3) are used for limiting the position of the storage tank (26) within a preset position range of the electronic platform scale (25).

8. The system according to claim 1, characterized in that the magazine further comprises a service unit, which is connected with the magazine unit,

9. The system according to claim 1, characterized in that the charging device comprises a gas outlet (36), a housing (37), a charging hopper (38) and a charging line (34), the housing (37) being housed above the charging hopper (38), the charging line (34) being connected at one end to the housing (37) and at the other end to the discharge unit, the gas outlet (36) being located on the housing (37);

the shell (37) is a shell (37) structure formed by enclosing a hollow cylinder, and the shell (37) is connected with the charging hopper (38);

the charging hopper (38) is used for preparing drilling fluid according to the drilling fluid material;

the shell (37) is used for discharging excess pressure gas of the charging hopper (38) in the process of distributing the drilling fluid through the gas outlet (36).

10. A method of drilling fluid treatment, wherein the method is used in a drilling fluid treatment system comprising: the device comprises a material storage device, a feeding device, an air compression device and a drying device; the storage device comprises a storage unit, a feeding unit, an unloading unit and a processing unit, wherein the feeding unit is positioned at the upper end of the storage unit, the unloading unit is positioned at the lower end of the storage unit, one end of the processing unit is connected with the air compression and drying device, the other end of the processing unit is connected with the storage unit, one end of the unloading unit is connected with the feeding device, the other end of the unloading unit is connected with the storage unit, one end of the feeding unit is connected with the storage unit, and the other end of the feeding unit is connected with a material source device;

the feeding unit inputs the drilling fluid material and filters impurities in the drilling fluid;

the storage unit stores the drilling fluid material;

the air compressing and drying device provides dry air to the process unit;