CN112974463B - Method and device for treating solid-phase waste in waste water-based drilling fluid - Google Patents
Method and device for treating solid-phase waste in waste water-based drilling fluid Download PDFInfo
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- CN112974463B CN112974463B CN201911289153.1A CN201911289153A CN112974463B CN 112974463 B CN112974463 B CN 112974463B CN 201911289153 A CN201911289153 A CN 201911289153A CN 112974463 B CN112974463 B CN 112974463B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
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Abstract
The application discloses a method and a device for treating solid-phase waste in waste water-based drilling fluid, and belongs to the technical field of waste treatment. The method comprises the following steps: determining a mass of the solid phase waste and a first content of each heavy metal in at least one heavy metal in the solid phase waste, determining a second content of each heavy metal in the drill cuttings, and determining a target mass of the drill cuttings based on the mass of the solid phase waste, the first content of each heavy metal, and the second content; determining a mixing ratio based on the mass of the solid phase waste and the target mass of the drill cuttings; and controlling a mixing device to mix the solid-phase waste and the drilling rock debris according to the mixing ratio to obtain the treated solid-phase waste. This application passes through, mixes solid phase discarded object and well drilling detritus through control mixing apparatus, realizes the processing to solid phase discarded object, has avoided the pollution that direct use caused soil environment.
Description
Technical Field
The application relates to the technical field of waste treatment, in particular to a method and a device for treating solid-phase waste in waste water-based drilling fluid.
Background
In the drilling process of oil and gas wells, water-based drilling fluid is usually used as a main material to realize the circular flushing of rock debris in a well bore. The water-based drilling fluid is a general name of a treating agent with multiple functions meeting the requirements of drilling work, and the treating agent is a sol suspension mixed system which takes water as a dispersing medium, takes treating agents such as clay (bentonite), a weighting agent and the like as a solid phase and takes various chemical treating agents as a dispersed phase. After the oil and gas well is drilled, the water-based drilling fluid becomes the waste water-based drilling fluid which can not be reused under the mixing of drilling sewage, drilling rock debris and drilling mud.
In the related technology, because the waste water-based drilling fluid contains clay, weighting agent and other treating agents, in order to avoid the pollution of the direct discharge of the waste water-based drilling fluid to the environment, solid-liquid separation is carried out on the waste water-based drilling fluid through a plate-and-frame filter press to obtain solid-phase waste, and then the solid-phase waste is pressed into mud cakes for being used for padding and paving well sites and the like.
However, because different treating agents are adopted by the water-based drilling fluid when different oil and gas wells are drilled, solid-phase waste obtained after solid-liquid separation of the waste water-based drilling fluid is different, and test data show that heavy metals in part of the solid-phase waste seriously exceed standards, so that when mud cakes are pressed and laid on a well site, the soil environment of the well site is easily polluted.
Disclosure of Invention
The application provides a method and a device for treating solid-phase waste in waste water-based drilling fluid, which can solve the problem of environmental pollution caused by excessive heavy metals in the solid-phase waste after solid-liquid separation of the waste water-based drilling fluid. The technical scheme is as follows:
in a first aspect, there is provided a method for treating solid phase waste in waste water-based drilling fluid, the method comprising:
determining the mass of the solid-phase waste and the first content of each heavy metal in at least one heavy metal in the solid-phase waste, wherein the solid-phase waste is obtained by performing solid-liquid separation on the waste water-based drilling fluid;
determining a second content of each heavy metal in drilling cuttings, the drilling cuttings being cuttings to be mixed with the solid phase waste;
determining a target mass of the drill cuttings based on the mass of the solid phase waste, the first content and the second content of each heavy metal;
determining a mixing ratio based on the mass of the solid phase waste and the target mass of the drill cuttings;
and controlling a mixing device to mix the solid-phase waste and the drilling rock debris according to the mixing ratio to obtain the treated solid-phase waste.
Optionally, the determining a target mass of the drill cuttings based on the mass of the solid phase waste, the first content and the second content of each heavy metal comprises:
acquiring the reference content of each heavy metal;
determining at least one mass based on the mass of the solid phase waste, the first content, the second content and the reference content of each heavy metal, wherein the at least one mass is in one-to-one correspondence with the at least one heavy metal;
selecting one of the at least one mass having the largest mass as a target mass for the drill cuttings.
Optionally, the determining at least one mass based on the mass of the solid phase waste, the first content, the second content and the reference content of each heavy metal comprises:
determining the at least one mass according to a first formula based on the mass of the solid phase waste, the first content, the second content and the reference content of each heavy metal:
wherein, M isiIs the ith mass, WiRefers to the first content of the ith heavy metal, the TiRefers to the reference content of the ith heavy metal, the QiThe content of the heavy metal is the second content of the ith heavy metal, and the P is the mass of the solid-phase waste.
Optionally, determining a mixing ratio based on the mass of solid phase waste and the target mass of drilling cuttings comprises:
determining a ratio between a mass of the solid phase waste and a target mass of the drill cuttings;
determining the mixing ratio based on the ratio, the mixing ratio being less than the ratio.
Optionally, the determining the mass of the solid phase waste and the first content of each of the at least one heavy metal in the solid phase waste comprises:
obtaining the mass of the waste water-based drilling fluid, the water content of the solid-phase waste and the content of solid-phase substances in the waste water-based drilling fluid;
determining the mass of the solid phase waste based on the mass of the waste water-based drilling fluid, the water content of the solid phase waste and the content of solid phase materials in the waste water-based drilling fluid;
acquiring the mass of various treatment agents contained in the water-based drilling fluid and the third content of each heavy metal in various heavy metals in the various treatment agents, wherein the water-based drilling fluid is a drilling fluid corresponding to the waste water-based drilling fluid before drilling;
determining a first content of each heavy metal in the plurality of heavy metals in the solid-phase waste based on the mass of each treating agent, the third content of each heavy metal in each treating agent and the water content of the solid-phase waste;
determining at least one heavy metal from the plurality of heavy metals based on the first content of each heavy metal to obtain a first content of each heavy metal of the at least one heavy metal in the solid phase waste.
In a second aspect, there is provided an apparatus for treating solid phase waste in waste water-based drilling fluid, the apparatus comprising:
the first determination module is used for determining the quality of the solid-phase waste and the first content of each heavy metal in at least one heavy metal in the solid-phase waste, wherein the solid-phase waste is obtained by performing solid-liquid separation on the waste water-based drilling fluid;
a second determination module for determining a second content of each heavy metal in drilling cuttings, the drilling cuttings being cuttings to be mixed with the solid phase waste;
a third determination module for determining a target mass of the drill cuttings based on the mass of the solid-phase waste, the first content and the second content of each heavy metal;
a fourth determination module for determining a mixing ratio based on the mass of the solid phase waste and the target mass of the drill cuttings;
and the control module is used for controlling the mixing equipment to mix the solid-phase waste and the drilling rock debris according to the mixing ratio to obtain the treated solid-phase waste.
Optionally, the third determining module includes:
a first acquisition unit for acquiring a reference content of each heavy metal;
a first determination unit for determining at least one mass based on the mass of the solid phase waste, the first content, the second content and the reference content of each heavy metal, the at least one mass corresponding to the at least one heavy metal one to one;
a first selection unit for selecting one of the at least one mass having the largest mass as a target mass of the drill cuttings.
Optionally, the determining unit is mainly configured to:
determining the at least one mass according to a first formula as follows, based on the mass of the solid phase waste, the first content, the second content and the reference content of each heavy metal:
wherein, M isiIs the ith mass, WiRefers to the first content of the ith heavy metal, the TiRefers to the reference content of the ith heavy metal, the QiThe second content of the ith heavy metal is indicated, and the P is the mass of the solid-phase waste.
Optionally, the fourth determination module is mainly configured to:
determining a ratio between a mass of the solid phase waste and a target mass of the drill cuttings;
determining the mixing ratio based on the ratio, the mixing ratio being less than the ratio.
Optionally, the first determining module includes:
the second acquisition unit is used for acquiring the mass of the waste water-based drilling fluid, the water content of the solid-phase waste and the content of solid-phase substances in the waste water-based drilling fluid;
a second determination unit for determining the mass of the solid phase waste based on the mass of the waste water-based drilling fluid, the water content of the solid phase waste and the content of solid phase materials in the waste water-based drilling fluid;
a third obtaining unit, configured to obtain the mass of each treatment agent included in the water-based drilling fluid and a third content of each heavy metal in the multiple heavy metals in each treatment agent, where the water-based drilling fluid is a drilling fluid corresponding to the waste water-based drilling fluid before drilling;
a third determination unit for determining a first content of each heavy metal of the plurality of heavy metals in the solid-phase waste based on the mass of each treating agent, the third content of each heavy metal in each treating agent, and the water content of the solid-phase waste;
a second selecting unit, configured to select at least one heavy metal from the plurality of heavy metals based on the first content of each heavy metal, so as to obtain the first content of each heavy metal in the at least one heavy metal in the solid-phase waste.
In a third aspect, a computer-readable storage medium is provided, in which a computer program is stored, which, when executed by a processor, implements any of the methods provided in the first aspect above.
In a fourth aspect, there is provided a computer program product containing instructions which, when run on a computer, cause the computer to perform the method of treating solid phase waste in a waste water-based drilling fluid as provided in the first aspect.
The beneficial effects that technical scheme that this application provided brought can include at least:
the mass of the solid-phase waste and the first content of each heavy metal in the solid-phase waste are determined, then the second content of each heavy metal in the drilling cuttings to be mixed with the solid-phase waste is determined, and further the required mass of the used drilling cuttings can be determined according to the mass of the solid-phase waste, the first content of each heavy metal in the solid-phase waste, the second content of each heavy metal in the drilling cuttings and the reference content of each heavy metal. Therefore, the mixing equipment is controlled to mix the solid-phase waste and the drilling rock debris based on the quality of the solid-phase waste and the quality of the drilling rock debris, so that the content of each heavy metal in the treated solid-phase waste is reduced, the treatment of the solid-phase waste is realized, and the pollution to the soil environment caused by direct use is avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, 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 flow diagram of a method for treating solid phase waste in a waste water-based drilling fluid according to an embodiment of the present disclosure;
FIG. 2 is a schematic flow diagram of another method for treating solid phase waste in a waste water-based drilling fluid according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of an apparatus for treating solid phase waste in waste water-based drilling fluid according to an embodiment of the present disclosure;
fig. 4 is a block diagram of a terminal according to an embodiment of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic flow chart of a method for treating solid-phase waste in waste water-based drilling fluid according to an embodiment of the present application. Referring to fig. 1, the method includes the following steps.
Step 101: determining the mass of the solid phase waste and the first content of each heavy metal in at least one heavy metal in the solid phase waste.
Wherein the solid-phase waste is obtained by performing solid-liquid separation on the waste water-based drilling fluid;
step 102: determining a second content of each heavy metal in drilling cuttings to be mixed with the solid waste.
Step 103: determining a target mass of the drill cuttings based on the mass of the solid phase waste, the first content and the second content of each heavy metal.
Step 104: determining a mixing ratio based on the mass of the solid phase waste and the target mass of the drill cuttings.
Step 105: and controlling a mixing device to mix the solid-phase waste and the drilling rock debris according to the mixing ratio to obtain the treated solid-phase waste.
In the embodiment of the application, the mass of the solid-phase waste and the first content of each heavy metal in the solid-phase waste are determined, then the second content of each heavy metal in the drilling cuttings to be mixed with the solid-phase waste is determined, and further the required quality of the used drilling cuttings can be determined according to the mass of the solid-phase waste, the first content of each heavy metal in the solid-phase waste, the second content of each heavy metal in the drilling cuttings and the reference content of each heavy metal. Therefore, the mixing equipment is controlled to mix the solid-phase waste and the drilling rock debris based on the quality of the solid-phase waste and the quality of the drilling rock debris, so that the content of each heavy metal in the solid-phase waste after treatment is reduced, the solid-phase waste is treated, the pollution to the soil environment caused by direct use is avoided, and the problem of large storage capacity of the drilling rock debris is solved.
Optionally, the determining a target mass of the drill cuttings based on the mass of the solid phase waste, the first content and the second content of each heavy metal comprises:
acquiring the reference content of each heavy metal;
determining at least one mass based on the mass of the solid phase waste, the first content, the second content and the reference content of each heavy metal, wherein the at least one mass is in one-to-one correspondence with the at least one heavy metal;
selecting one of the at least one mass having the largest mass as a target mass for the drill cuttings.
Optionally, the determining at least one mass based on the mass of the solid phase waste, the first content, the second content and the reference content of each heavy metal comprises:
determining the at least one mass according to a first formula as follows, based on the mass of the solid phase waste, the first content, the second content and the reference content of each heavy metal:
wherein, M isiIs the ith mass, WiRefers to the first content of the ith heavy metal, the TiRefers to the reference content of the ith heavy metal, the QiThe content of the heavy metal is the second content of the ith heavy metal, and the P is the mass of the solid-phase waste.
Optionally, determining a mixing ratio based on the mass of solid phase waste and the target mass of drilling cuttings comprises:
determining a ratio between a mass of the solid phase waste and a target mass of the drill cuttings;
determining the mixing ratio based on the ratio, the mixing ratio being less than the ratio.
Optionally, the determining the quality of the solid phase waste and the first content of each of the at least one heavy metal in the solid phase waste comprises:
obtaining the mass of the waste water-based drilling fluid, the water content of the solid-phase waste and the content of solid-phase substances in the waste water-based drilling fluid;
determining the mass of the solid phase waste based on the mass of the waste water-based drilling fluid, the water content of the solid phase waste and the content of solid phase materials in the waste water-based drilling fluid;
acquiring the mass of various treatment agents contained in the water-based drilling fluid and the third content of each heavy metal in various heavy metals in the various treatment agents, wherein the water-based drilling fluid is a drilling fluid corresponding to the waste water-based drilling fluid before drilling;
determining a first content of each heavy metal in the plurality of heavy metals in the solid-phase waste based on the mass of each treating agent, the third content of each heavy metal in each treating agent and the water content of the solid-phase waste;
determining at least one heavy metal from the plurality of heavy metals based on the first content of each heavy metal to obtain a first content of each heavy metal of the at least one heavy metal in the solid phase waste.
All the above optional technical solutions can be combined arbitrarily to form an optional embodiment of the present application, and the present application embodiment is not described in detail again.
Fig. 2 is a schematic flow chart of a method for treating solid-phase waste in waste water-based drilling fluid according to an embodiment of the present application. The method is applied to a device for treating solid-phase waste in the waste water-based drilling fluid, and the device for treating the solid-phase waste in the waste water-based drilling fluid is integrated in a terminal. Referring to fig. 2, the method includes the following steps.
Step 201: determining the mass of the solid phase waste and the first content of each heavy metal in at least one heavy metal in the solid phase waste.
Wherein, the solid-phase waste is obtained by performing solid-liquid separation on the waste water-based drilling fluid through a plate-and-frame filter press.
In some embodiments, the mass of the waste water-based drilling fluid, the water content of the solid phase waste, and the content of solid phase materials in the waste water-based drilling fluid may be obtained, and the mass of the solid phase waste is determined based on the mass of the waste water-based drilling fluid, the water content of the solid phase waste, and the content of solid phase materials in the waste water-based drilling fluid.
The waste water-based drilling fluid is liquid obtained after drilling sewage, drilling cuttings and drilling mud are polluted after drilling is completed through the water-based drilling fluid. The solid-phase waste is a solid-phase substance obtained by performing solid-liquid separation on the waste water-based drilling fluid by using a terminal control plate-and-frame filter press.
The terminal can display the first parameter acquisition interface so as to acquire the quality of the waste water-based drilling fluid, the water content of solid-phase waste and the content of solid-phase substances in the waste water-based drilling fluid, which are input by a user at the first parameter acquisition interface. That is, the user can input the quality of the waste water-based drilling fluid, the water content of the solid-phase waste and the content of the solid-phase substances in the waste water-based drilling fluid on the first parameter acquisition interface displayed by the terminal, so that the terminal can acquire the parameters from the first parameter acquisition interface. After the terminal acquires the mass of the waste water-based drilling fluid, the water content of the solid-phase waste and the content of the solid-phase material in the waste water-based drilling fluid, the terminal can multiply the mass of the waste water-based drilling fluid and the content of the solid-phase material to obtain the mass of the solid-phase material, then the difference value between 1 and the water content of the solid-phase waste is determined, and the ratio of the mass of the solid-phase material to the difference value is determined as the mass of the solid-phase waste.
Illustratively, the mass of the waste water-based drilling fluid obtained by the terminal through the first parameter obtaining interface is 34 tons, the water content of the solid-phase waste is 40%, and the content of the solid-phase substance in the waste water-based drilling fluid is 18%, at this time, the terminal can multiply 34 tons by 18% to obtain 6.12 tons, and then 10.2 tons, which is the ratio between 6.12 tons and 60%, is determined as the mass of the solid-phase waste.
In some embodiments, the first amount of each of the at least one heavy metal in the solid phase waste can be determined by steps (1) - (3) as follows.
(1) Obtaining the quality of various treatment agents included in the water-based drilling fluid and the third content of each heavy metal in the heavy metals in the treatment agents.
Wherein the water-based drilling fluid is the drilling fluid corresponding to the waste water-based drilling fluid before drilling.
In some embodiments, the terminal may display the second parameter acquisition interface so as to acquire the quality of the various treatment agents and the third content of each of the plurality of heavy metals in the various treatment agents, which are input by the user at the second parameter acquisition interface. That is, the user can input the quality of each of the treating agents and the third content of each of the plurality of heavy metals in each of the treating agents on the second parameter acquiring interface displayed on the terminal, so that the terminal can acquire these parameters from the second parameter acquiring interface.
(2) And determining the first content of each heavy metal in the plurality of heavy metals in the solid-phase waste based on the mass of each treating agent, the third content of each heavy metal in each treating agent and the water content of the solid-phase waste.
In some embodiments, for each of the at least one treatment agents included in the water-based drilling fluid, the terminal may multiply the mass of each treatment agent by the third content of each heavy metal in the plurality of heavy metals, respectively, to obtain the mass of each heavy metal in each treatment agent. And then the terminal can add the masses of the same heavy metal in each treating agent to obtain the mass of each heavy metal in the multiple heavy metals in the solid-phase waste. Then, the terminal can determine a difference value between 1 and the water content of the solid-phase waste, determine a ratio between the sum of the masses of each treating agent and the difference value as an actual mass of the solid-phase material, and determine a ratio between the mass of each heavy metal in the heavy metals and the actual mass of the solid-phase material as a first content of each heavy metal in the heavy metals in the solid-phase waste.
It should be noted that, for the same heavy metal, when the content of the heavy metal in each treatment agent is less than the reference content, the above operation may be performed on the heavy metal without the parameter, that is, before the first content of each heavy metal in the solid-phase waste is determined, the heavy metals may be screened to select the heavy metal with the content of the same heavy metal in each treatment agent greater than the reference content
Illustratively, the water-based drilling fluid comprises bentonite as a first treatment agent, wherein the first treatment agent is 22500Kg, the anti-collapse blocking agent as a second treatment agent is 9000Kg, the barite as a third treatment agent is 246000Kg, and the third content of each heavy metal and the reference content of each heavy metal contained in the bentonite, the collapse blocking agent and the barite are shown in Table 1, wherein ND is the content below the detection limit.
TABLE 1
Thus, as can be seen from Table 1, only barite among the various treating agents contained heavy metals greater than the reference content, and the first content of arsenic, a heavy metal, in the solid phase waste was determined to be 192.7324mg/Kg according to the following second formula.
Wherein W to M refers to the first content of heavy metal arsenic in the water-based drilling fluidiRefers to the mass of the treating agent in the i < th > including the treating agent in the water-based drilling fluid, alphaiThe content of heavy metal arsenic in the i-th treating agent in the water-based drilling fluid is the first content, and beta is the water content of solid-phase waste.
(3) Determining at least one heavy metal from the plurality of heavy metals based on the first content of each heavy metal to obtain a first content of each heavy metal in the at least one heavy metal in the solid-phase waste
Although the content of the heavy metals in each treatment agent may be larger than the reference content, after the treatment agents are mixed, that is, the content of the heavy metals in the obtained solid-phase waste is not larger than the reference content, the heavy metals may not be neutralized.
Therefore, in order to facilitate the calculation and reduce the calculation amount, at least one heavy metal can be selected from the multiple heavy metals based on the first content of each heavy metal, and then the first content of each heavy metal in the at least one heavy metal can be determined.
It should be noted that the reference content of each heavy metal can be determined in the second type of construction land in the standard for controlling soil pollution risk of soil environment quality construction land (temporary) in GB 36600-. The method can be determined in the first type of construction land in soil pollution risk management and control standards (temporary) for soil environmental quality construction land GB 36600-2018.
Of course, the at least one heavy metal may also refer to a heavy metal that is included in the solid phase waste in an actual content that exceeds a reference content. Thus, after the first content of each heavy metal in the solid phase waste is determined through the above steps, the first content of each heavy metal can be compared with the reference content of the corresponding heavy metal, and the heavy metal with the first content greater than the reference content can be used for determining at least one heavy metal included in the solid phase waste.
Step 202: and acquiring the quality of each rock fragment in the plurality of rock fragments and the fourth content of each heavy metal in each rock fragment.
Wherein the plurality of drill cuttings refers to drill cuttings to be mixed with solid phase waste.
The terminal may display a third parameter acquisition interface as shown in table 2, so that the user may input the mass of each drill cuttings and the fourth content of each heavy metal in each drill cuttings in table 2 of the third parameter acquisition interface. That is, the user may input the quality of each drill cuttings and the fourth content of each heavy metal in each drill cuttings in table 2 of the third parameter acquisition interface displayed by the terminal, so that the terminal may acquire the parameters from table 2 of the third parameter acquisition interface. Wherein ND is the content below the detection limit.
TABLE 2
It should be noted that each drill cuttings is obtained by screening according to the reference content of each heavy metal, that is, the content of each heavy metal in each drill cuttings is necessarily less than the reference content of the corresponding heavy metal. Of course, each drill cuttings can also be screened according to other content requirements of each heavy metal, for example, screening can be performed according to the heavy metal content requirement of the first type of construction land in the GB 36600-2018 soil environmental quality construction land soil pollution risk management and control standard (temporary).
Step 203: the mass of each of the cuttings and the fourth content of each of the heavy metals in each of the cuttings determine a second content of each of the heavy metals in the drill cuttings.
The drilling cuttings are obtained by mixing the drilling cuttings, namely the drilling cuttings are the cuttings to be mixed with solid-phase waste.
In some embodiments, the mass of each drill cuttings may be multiplied by the fourth content of each heavy metal to obtain the mass of each heavy metal in each drill cuttings, then the masses of the same heavy metal in each drill cuttings may be added to obtain the mass of each heavy metal in the drill cuttings, the masses of each drill cuttings may be summed to obtain the mass of the drill cuttings, and then the ratio of the mass of each heavy metal to the mass of the drill cuttings may be determined as the second content of each heavy metal, respectively.
Continuing with the above example, the mass of the drill cuttings may be 102300Kg +247280Kg +183120Kg +95680Kg, i.e. 628380Kg, and the mass of heavy metal arsenic in the drill cuttings may be 1.1mg/Kg × 102300Kg +1.9mg/Kg × 247280Kg +2.3mg/Kg × 183120Kg +8.4mg/Kg × 95680Kg, i.e. 180.725g, and the second content of heavy metal arsenic in the drill cuttings may be 2.876 mg/Kg.
Step 204: a target mass of the drill cuttings is determined based on the mass of the solid phase waste, the first content and the second content of each heavy metal.
In some embodiments, a reference content of each heavy metal may be obtained, at least one mass may be determined based on the mass of the solid phase waste, the first content, the second content, and the reference content of each heavy metal, and one having the largest mass may be selected from the at least one mass as a target mass of the drill cuttings.
The at least one mass corresponds to the at least one heavy metal one to one, that is, a corresponding mass is determined for each heavy metal in the at least one heavy metal in the above manner.
The reference content of each heavy metal may be obtained as described in step 201, and is not described herein again in this embodiment of the present application.
Determining at least one mass based on the mass of the solid phase waste, the first content, the second content and the reference content of each heavy metal according to a first formula as follows:
wherein M isiIs the ith mass, WiRefers to the first content, T, of the ith heavy metaliRefers to the reference content, Q, of the ith heavy metaliThe second content of the ith heavy metal, and P the mass of the solid phase waste.
Continuing with the above example, the reference content of arsenic, which is a heavy metal, is 60mg/Kg, the first content is 192.7324mg/Kg, the second content is 2.876mg/Kg, and the mass of the solid waste is 10.2 tons, so that, in combination with the above first formula, the mass of the drill cuttings corresponding to arsenic, which is a heavy metal, can be determined to be 23.7 tons.
In determining a mass corresponding to each heavy metal by the above first formula, in order to ensure that the contents of all heavy metals in all solid phase wastes after mixing are less than the reference content, one having the largest mass may be selected from at least one mass as a target mass of the drill cuttings.
Step 205: the mixing ratio is determined based on the mass of solid phase waste and the target mass of drill cuttings.
Determining a ratio between the mass of solid phase waste and a target mass of drill cuttings, and determining a mixing ratio based on the ratio, the mixing ratio being less than the ratio.
It should be noted that the target quality of the drilling cuttings is determined according to the reference content of the corresponding heavy metal, and in order to ensure that the content of the corresponding heavy metal in the mixed solid-phase waste is less than the reference content, the actual using quality of the drilling cuttings may be slightly greater than the target quality. Therefore, after determining the ratio between the mass of the solid phase non-junction and the target mass of the drilling debris, a mixing ratio smaller than the ratio can be determined to ensure that the content of the corresponding heavy metal in the mixed solid phase waste is less than the reference content and to avoid the excessive use of the drilling debris.
Continuing with the above example, if the ratio of the determined mass of solid waste to the target mass of drill cuttings is 1:2.324, the mixing ratio may be determined to be 1:2.4, but the mixing ratio may be other values as long as the mixing ratio is less than 1:2.3235, which is not limited in the embodiments of the present application.
Step 206: and controlling the mixing equipment to mix the solid-phase waste and the drilling rock debris according to the mixing ratio to obtain the treated solid-phase waste.
After the mixing ratio of the solid-phase waste and the drilling cuttings is determined, the terminal may control the mixing device to mix the solid-phase waste and the drilling cuttings according to the mixing ratio based on the mixing ratio to realize the treatment of the solid-phase waste.
The mixing equipment can comprise grabbing equipment and stirring equipment, the terminal can control the grabbing equipment to grab the solid-phase waste and the drilling cuttings respectively according to the mixing ratio of 1:2.4, the solid-phase waste and the drilling cuttings are placed in the stirring equipment, and then the terminal can control the stirring equipment to stir the solid-phase waste and the drilling cuttings uniformly so as to treat the solid-phase waste. The content of heavy metal arsenic in the treated solid phase waste can be 58.7 mg/Kg.
In the embodiment of the application, the first content of each heavy metal in the multiple heavy metals in the multi-solid-phase waste is determined, and then at least one heavy metal is selected from the multiple heavy metals based on the reference content of each heavy metal, so that the calculation amount is reduced conveniently. And then determining the mass of the solid-phase waste and the first content of each heavy metal in at least one heavy metal in the solid-phase waste, and then determining the second content of each heavy metal in the drilling cuttings to be mixed with the solid-phase waste, so as to determine the required quality of the used drilling cuttings according to the mass of the solid-phase waste, the first content of each heavy metal in the solid-phase waste, the second content of each heavy metal in the drilling cuttings and the reference content of each heavy metal. Therefore, the mixing equipment is controlled to mix the solid-phase waste and the drilling rock debris based on the quality of the solid-phase waste and the quality of the drilling rock debris, so that the content of each heavy metal in the solid-phase waste after treatment is reduced, the solid-phase waste is treated, the pollution to the soil environment caused by direct use is avoided, and the problem of large storage capacity of the drilling rock debris is solved.
Fig. 3 is a schematic structural diagram of a device for treating solid-phase waste in waste water-based drilling fluid according to an embodiment of the present disclosure. Referring to fig. 3, the apparatus includes:
the first determining module 301 is configured to determine the quality of the solid-phase waste and the first content of each heavy metal in at least one heavy metal in the solid-phase waste, where the solid-phase waste is obtained by performing solid-liquid separation on a waste water-based drilling fluid;
a second determination module 302 for determining a second content of each heavy metal in drilling cuttings to be mixed with the solid waste;
a third determination module 303 for determining a target mass of the drill cuttings based on the mass of the solid phase waste, the first content and the second content of each heavy metal;
a fourth determination module 304 for determining a mixing ratio based on the mass of solid phase waste and the target mass of drilling cuttings;
and the control module 305 is used for controlling the mixing equipment to mix the solid-phase waste and the drilling cuttings according to the mixing ratio to obtain the treated solid-phase waste.
Optionally, the third determining module 303 includes:
a first acquisition unit for acquiring a reference content of each heavy metal;
a first determination unit for determining at least one mass based on the mass of the solid phase waste, the first content, the second content and the reference content of each heavy metal, the at least one mass corresponding to the at least one heavy metal one to one;
a first selection unit for selecting one of the at least one mass having the largest mass as a target mass of the drill cuttings.
Optionally, the determining unit is mainly configured to:
determining the at least one mass according to a first formula as follows, based on the mass of the solid phase waste, the first content, the second content and the reference content of each heavy metal:
wherein, theMiIs the ith mass, WiRefers to the first content of the ith heavy metal, the TiRefers to the reference content of the ith heavy metal, the QiThe content of the heavy metal is the second content of the ith heavy metal, and the P is the mass of the solid-phase waste.
Optionally, the fourth determination module 304 is mainly configured to:
determining a ratio between a mass of the solid phase waste and a target mass of the drill cuttings;
determining the mixing ratio based on the ratio, the mixing ratio being less than the ratio.
Optionally, the first determining module includes:
the second acquisition unit is used for acquiring the mass of the waste water-based drilling fluid, the water content of the solid-phase waste and the content of solid-phase substances in the waste water-based drilling fluid;
a second determination unit for determining the mass of the solid phase waste based on the mass of the waste water-based drilling fluid, the water content of the solid phase waste and the content of solid phase materials in the waste water-based drilling fluid;
a third obtaining unit, configured to obtain the mass of each treatment agent included in the water-based drilling fluid and a third content of each heavy metal in the multiple heavy metals in each treatment agent, where the water-based drilling fluid is a drilling fluid corresponding to the waste water-based drilling fluid before drilling;
a third determination unit for determining a first content of each heavy metal of the plurality of heavy metals in the solid-phase waste based on the mass of each treating agent, the third content of each heavy metal in each treating agent, and the water content of the solid-phase waste;
a second selecting unit, configured to select at least one heavy metal from the plurality of heavy metals based on the first content of each heavy metal, so as to obtain the first content of each heavy metal in the at least one heavy metal in the solid-phase waste.
In the embodiment of the application, the mass of the solid-phase waste and the first content of each heavy metal in the solid-phase waste are determined, then the second content of each heavy metal in the drilling cuttings to be mixed with the solid-phase waste is determined, and further the required quality of the used drilling cuttings can be determined according to the mass of the solid-phase waste, the first content of each heavy metal in the solid-phase waste, the second content of each heavy metal in the drilling cuttings and the reference content of each heavy metal. Therefore, the mixing equipment is controlled to mix the solid-phase waste and the drilling rock debris based on the quality of the solid-phase waste and the quality of the drilling rock debris, so that the content of each heavy metal in the solid-phase waste after treatment is reduced, the solid-phase waste is treated, the pollution to the soil environment caused by direct use is avoided, and the problem of large storage capacity of the drilling rock debris is solved.
It should be noted that: in the device for processing solid phase waste in waste water-based drilling fluid provided by the above embodiment, when the solid phase waste in waste water-based drilling fluid is processed, only the division of the above functional modules is taken as an example, in practical application, the above function distribution can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the above described functions. In addition, the device for treating solid-phase waste in waste water-based drilling fluid provided by the embodiment and the method for treating solid-phase waste in waste water-based drilling fluid belong to the same concept, and the specific implementation process is shown in the method embodiment and is not described herein again.
Fig. 4 illustrates a block diagram of a terminal 400 according to an exemplary embodiment of the present application. Referring to fig. 4, the terminal 400 may be: a smartphone, a tablet computer, a laptop computer, or a desktop computer. The terminal 400 may also be referred to by other names such as user equipment, portable terminal, laptop terminal, desktop terminal, etc. Referring to fig. 4, the terminal 400 may include a processor 401 and a memory 402.
In some embodiments, the terminal 400 may further optionally include: a peripheral interface 403 and at least one peripheral. The processor 401, memory 402 and peripheral interface 403 may be connected by bus or signal lines. Various peripheral devices may be connected to the peripheral interface 403 via a bus, signal line, or circuit board. Specifically, the peripheral device includes: at least one of radio frequency circuitry 404, a display screen 405, a positioning component 406, and a power supply 407.
The peripheral interface 403 may be used to connect at least one peripheral related to I/O (Input/Output) to the processor 401 and the memory 402. In some embodiments, processor 401, memory 402, and peripheral interface 403 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 401, the memory 402 and the peripheral interface 403 may be implemented on a separate chip or circuit board, which is not limited by this embodiment.
The Radio Frequency circuit 404 is used to receive and transmit RF (Radio Frequency) signals, also called electromagnetic signals. The radio frequency circuitry 404 communicates with communication networks and other communication devices via electromagnetic signals. The rf circuit 404 converts an electrical signal into an electromagnetic signal to transmit, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 404 includes: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a subscriber identity module card, and so forth. The radio frequency circuitry 404 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocols include, but are not limited to: the world wide web, metropolitan area networks, intranets, generations of mobile communication networks (2G, 3G, 4G, and 5G), Wireless local area networks, and/or WiFi (Wireless Fidelity) networks. In some embodiments, the rf circuit 404 may further include NFC (Near Field Communication) related circuits, which are not limited in this application.
The display screen 405 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. When the display screen 405 is a display screen, the display screen 405 also has the ability to capture touch signals on or over the surface of the display screen 405. The touch signal may be input to the processor 401 as a control signal for processing. At this point, the display screen 405 may also be used to provide virtual buttons and/or a virtual keyboard, also referred to as soft buttons and/or a soft keyboard. In some embodiments, the display screen 405 may be one, providing the front panel of the terminal 400; in other embodiments, the display screen 405 may be at least two, respectively disposed on different surfaces of the terminal 400 or in a folded design; in still other embodiments, the display 405 may be a flexible display disposed on a curved surface or a folded surface of the terminal 400. Even further, the display screen 405 may be arranged in a non-rectangular irregular pattern, i.e. a shaped screen. The Display screen 405 may be made of LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode), and other materials.
The positioning component 406 is used to locate the current geographic Location of the terminal 400 for navigation or LBS (Location Based Service). The Positioning component 406 may be a Positioning component based on the Global Positioning System (GPS) in the united states, the beidou System in china, or the galileo System in russia.
The power supply 407 is used to supply power to the various components in the terminal 400. The power source 407 may be alternating current, direct current, disposable or rechargeable. When the power source 407 includes a rechargeable battery, the rechargeable battery may be a wired rechargeable battery or a wireless rechargeable battery. The wired rechargeable battery is a battery charged through a wired line, and the wireless rechargeable battery is a battery charged through a wireless coil. The rechargeable battery may also be used to support fast charge technology.
Those skilled in the art will appreciate that the configuration shown in fig. 4 is not intended to be limiting of terminal 400 and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components may be used.
In the above embodiments, there is also provided a non-transitory computer-readable storage medium comprising instructions for storing at least one instruction for execution by a processor to implement the method provided by the above embodiments shown in fig. 1 or fig. 2.
Embodiments of the present application also provide a computer program product containing instructions, which when run on a computer, cause the computer to perform the method provided in the embodiments shown in fig. 1 or fig. 2.
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 exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (6)
1. A method for treating solid phase waste in waste water-based drilling fluid is characterized by comprising the following steps:
determining the mass of the solid-phase waste and the first content of each heavy metal in at least one heavy metal in the solid-phase waste, wherein the solid-phase waste is obtained after solid-liquid separation of the waste water-based drilling fluid;
determining a mass of each of the plurality of drilling cuttings and a fourth content of each of the heavy metals in each of the plurality of drilling cuttings;
determining a second content of each heavy metal in the drilling cuttings based on the mass of each of the drilling cuttings and a fourth content of each heavy metal in each of the drilling cuttings, the drilling cuttings being cuttings to be mixed with the solid waste;
acquiring the reference content of each heavy metal;
determining at least one mass based on the mass of the solid phase waste, the first content, the second content and the reference content of each heavy metal according to a first formula as follows:
wherein, M isiIs the ith mass, WiRefers to the first content of the ith heavy metal, the TiRefers to the reference content of the ith heavy metal, the QiThe content of the ith heavy metal is the second content, the P is the mass of the solid phase waste, and the at least one mass corresponds to the at least one heavy metal one by one;
selecting one of the at least one mass having the largest mass as a target mass for the drill cuttings;
determining a mixing ratio based on the mass of the solid phase waste and the target mass of the drill cuttings;
and controlling a mixing device to mix the solid-phase waste and the drilling rock debris according to the mixing ratio to obtain the treated solid-phase waste.
2. The method of claim 1, wherein determining a mixing ratio based on the mass of solid phase waste and the target mass of drilling cuttings comprises:
determining a ratio between a mass of the solid phase waste and a target mass of the drill cuttings;
determining the mixing ratio based on the ratio, the mixing ratio being less than the ratio.
3. The method of claim 1, wherein the determining the quality of the solid phase waste and the first content of each of the at least one heavy metal in the solid phase waste comprises:
obtaining the mass of the waste water-based drilling fluid, the water content of the solid-phase waste and the content of solid-phase substances in the waste water-based drilling fluid;
determining the mass of the solid phase waste based on the mass of the waste water-based drilling fluid, the water content of the solid phase waste and the content of solid phase materials in the waste water-based drilling fluid;
acquiring the mass of various treatment agents contained in the water-based drilling fluid and the third content of each heavy metal in various heavy metals in the various treatment agents, wherein the water-based drilling fluid is a drilling fluid corresponding to the waste water-based drilling fluid before drilling;
determining a first content of each heavy metal in the plurality of heavy metals in the solid-phase waste based on the mass of each treating agent, the third content of each heavy metal in each treating agent and the water content of the solid-phase waste;
determining at least one heavy metal from the plurality of heavy metals based on the first content of each heavy metal to obtain a first content of each heavy metal of the at least one heavy metal in the solid phase waste.
4. An apparatus for treating solid phase waste in waste water-based drilling fluid, the apparatus comprising:
the first determination module is used for determining the quality of the solid-phase waste and the first content of each heavy metal in at least one heavy metal in the solid-phase waste, and the solid-phase waste is obtained after solid-liquid separation is carried out on the waste water-based drilling fluid;
a second determination module for determining a mass of each of the plurality of drilling cuttings and a fourth content of each of the heavy metals in each of the drilling cuttings; determining a second content of each heavy metal in the drilling cuttings based on the mass of each of the drilling cuttings and a fourth content of each heavy metal in each of the drilling cuttings, the drilling cuttings being cuttings to be mixed with the solid waste;
a third determination module for determining a target mass of the drill cuttings based on the mass of the solid phase waste, the first content and the second content of each heavy metal, the third determination module comprising:
a first acquisition unit for acquiring a reference content of each heavy metal;
a first determination unit for determining at least one mass according to a first formula as follows, based on the mass of the solid-phase waste, the first content, the second content, and the reference content of each heavy metal:
wherein, M isiIs the ith mass, WiRefers to the first content of the ith heavy metal, the TiRefers to the reference content of the ith heavy metal, the QiThe second content of the ith heavy metal is indicated, and the P is the mass of the solid-phase waste;
a first selection unit for selecting one having the largest mass from the at least one mass as a target mass of the drilling cuttings;
a fourth determination module for determining a mixing ratio based on the mass of the solid phase waste and the target mass of the drill cuttings;
and the control module is used for controlling the mixing equipment to mix the solid-phase waste and the drilling rock debris according to the mixing ratio to obtain the treated solid-phase waste.
5. The apparatus of claim 4, wherein the fourth determination-based module is primarily to:
determining a ratio between a mass of the solid phase waste and a target mass of the drill cuttings;
determining the mixing ratio based on the ratio, the mixing ratio being less than the ratio.
6. The apparatus of claim 4, wherein the first determining module comprises:
the second acquisition unit is used for acquiring the mass of the waste water-based drilling fluid, the water content of the solid-phase waste and the content of solid-phase substances in the waste water-based drilling fluid;
a second determination unit, configured to determine the mass of the solid-phase waste based on the mass of the waste water-based drilling fluid, the water content of the solid-phase waste, and the content of solid-phase substances in the waste water-based drilling fluid;
a third obtaining unit, configured to obtain the mass of each treatment agent included in the water-based drilling fluid and a third content of each heavy metal in the multiple heavy metals in each treatment agent, where the water-based drilling fluid is a drilling fluid corresponding to the waste water-based drilling fluid before drilling;
a third determination unit for determining a first content of each heavy metal of the plurality of heavy metals in the solid-phase waste based on the mass of each treating agent, the third content of each heavy metal in each treating agent, and the water content of the solid-phase waste;
a second selecting unit, configured to select at least one heavy metal from the plurality of heavy metals based on the first content of each heavy metal, so as to obtain the first content of each heavy metal in the at least one heavy metal in the solid-phase waste.
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| CN104131795A (en) * | 2014-07-16 | 2014-11-05 | 德惠同利（北京）石油技术服务有限公司 | Well drilling fluid treatment device and method |
| CN105107824B (en) * | 2015-09-10 | 2017-06-16 | 北京融达建业建筑工程技术有限公司 | A kind of oilfield drilling discarded object method for innocent treatment |
| CN106561334B (en) * | 2016-11-08 | 2020-10-13 | 中国石油大学(北京) | Drilling solid-phase waste treatment composition and application thereof |
| CN108607869A (en) * | 2018-04-25 | 2018-10-02 | 湖北三鑫金铜股份有限公司 | A kind of copper tailing processing method |
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