89 results about "Drilling waste" patented technology

The invention discloses a beneficiation method for efficiently recovering barite from heat treatment drilling waste. The beneficiation method comprises the following steps that (1) the drilling waste containing the barite is subjected to wet screening classification; (2) performing magnetic separation on the undersize product to obtain a magnetic product and a non-magnetic product; (3) carrying out primary roughing and primary concentration on the non-magnetic product to obtain a barite powder product 1; and (4) the roughing tailings are subjected to scavenging for three times, scavenged concentrates are combined and then subjected to fine selection for two times, and a barite powder product 2 is obtained. According to the method, barite in the heat treatment drilling waste is efficiently recycled by adopting a beneficiation method, two different grades of barite powder products are obtained and can serve as drilling fluid raw materials to be recycled, resource utilization of the waste is achieved, and meanwhile environmental hazards are reduced.

The invention relates to the technical field of waste drilling fluid treatment, and discloses a modifier for treating water-based drilling waste and a preparation method thereof.The modifier is prepared from, by weight, 30-40 parts of potassium persulfate, 10-25 parts of ferric trichloride, 20-40 parts of quaternary ammonium cationic polymer and 10-20 parts of magnetized modified attapulgite clay. According to the modifier for treating the water-based drilling waste, through the synergistic effect of all the components, an oxidation-catalysis-flocculation-magnetic separation four-stage synergistic treatment process is formed, the problem that gel breaking is not thorough in the water-based drilling waste treatment process is solved, the content of metal ions in a liquid phase after solid-liquid separation is reduced, and the water-based drilling waste treatment effect is improved. The water distribution requirement of the drilling fluid can be met under the condition that the liquid phase does not need to be further treated, the treatment process is simplified, and the cost is reduced.

The invention provides a method for separating stones, sand, mud and water in drilling residues based on the centrifugal force principle, and belongs to the technical field of separation. Comprising the following steps that S1, after being collected, drilling slag waste obtained after drilling is intensively put into a separation device, and solid particles and liquid in the drilling slag waste start to be screened through the separation device; s2, after a motor is started, a separation assembly is driven to operate, and stones which cannot be secondarily utilized in the drilling slag waste are screened and discharged; s3, a mud-water mixture and fine particles in the drilling slag waste are separated through a drilling slag spin dryer; and S4, the fine particles separated from the drilling slag waste are flushed through linkage of the flushing assembly and the circulating assembly. By arranging the separation assembly, the effect of separating stones in the drilling slag waste is achieved, by arranging the circulation assembly and the flushing assembly, two-way circulation of'filtration-utilization 'of waste water in the drilling slag waste is achieved, the use cost is reduced, and the sustainability of the separation device during use is improved.

The invention provides a geological drilling waste water-based drilling fluid harmless treatment method, which adopts a chemical and physical combined method to treat waste drilling fluid, and comprises the following steps: firstly, adding a composite efficient gel breaker to carry out gel breaking on the waste drilling fluid to destroy the colloid structure of the waste drilling fluid, and adding a flocculant and a coagulant aid to further flocculate and destabilize; suspended fine particles are flocculated and agglomerated into large flocculates, a decolorizing agent is added for adsorption decolorization treatment, solid-liquid separation is performed through a filter press, the separated liquid phase can reach the standard to be discharged or recycled, and the separated solid phase is harmless solid waste and can be laid in a well site or transferred and buried. According to the innocent treatment method for the geological drilling waste drilling fluid, the treated liquid phase reaches the secondary standard of Integrated Wastewater Discharge Standard, the water content of the treated solid phase is lower than 20%, the environmental protection requirement is met, and the problem that the environment is polluted by the waste drilling fluid generated in the geological drilling process can be solved.

The utility model discloses wall surface punching waste residue collecting equipment which comprises a bottom plate and a drilling machine, a position adjusting mechanism used for adjusting the height of the drilling machine is arranged on the upper surface of the bottom plate, and a transverse driving mechanism used for adjusting the transverse position of the drilling machine is arranged on the left side of the position adjusting mechanism. The drilling machine is arranged on the left side of the transverse driving mechanism, a waste residue collecting mechanism used for collecting wall surface punching waste residues is arranged on the left side of the drilling machine, and the waste residue collecting mechanism comprises a third cylinder, a second cylinder, a first cylinder and a U-shaped connecting frame which are sequentially arranged from left to right; connecting assemblies used for being connected with a drilling machine are arranged on the two transverse plates of the U-shaped connecting frame. According to the drilling device, waste residues generated during drilling can fall into the sliding box to be collected, and the waste residues cannot splash in the drilling process.

The invention discloses remediation soil prepared from gas field water-based drilling waste and a preparation method and application of the remediation soil. The preparation method comprises the steps that solid phases in the gas field water-based drilling waste are sieved; mixing the sieved solid-phase waste with liquid-phase waste in the gas field water-based drilling waste to obtain a mixed raw material; mixing the soil with the mixed raw materials to obtain mixed soil; and adding charcoal, urea, mineral source humic acid and desulfurized gypsum into the mixed soil to obtain the remediated soil. The method is simple in process and convenient to operate, beneficial substances in the drilling waste can be fully utilized, remediated soil rich in nutrition is obtained and can be used for planting plants, and meanwhile resource utilization of the water-based drilling waste is promoted.

The invention relates to the technical field of petroleum component detection, in particular to a drilling waste component identification and flocculation state detection method based on hyperspectral imaging. According to the method, firstly, data are acquired through the polarization hyperspectral imaging system, specular reflection noise can be effectively suppressed, and the detection precision is improved; secondly, a multi-task deep learning model is adopted to synchronously analyze components and flocculation states, so that efficient and accurate multi-parameter detection is realized; and finally, by outputting a detection result and recommending processing process parameters, a closed-loop solution is provided for practical application, and the intelligent level of drilling waste processing is remarkably improved.

The embodiment of the present application provides a roadbed uniformity compaction test device, which relates to the technical field of roadbed compaction test. The roadbed uniformity compaction test device includes a base plate, a test cylinder, an L-shaped mounting plate, a calibration compaction assembly and a lifting drilling assembly, wherein the calibration compaction assembly includes a collecting ring, a mounting sleeve is provided in the middle of the test cylinder, and the collecting ring is provided with a plurality of evenly distributed upper conveying holes. The present invention drives the test cylinder and the drill bit to rotate around the bearing by rotating the handle. When the drill bit moves to the top of the test hole of the base plate, the lifting drilling assembly is started to drive the drill bit to drill the foundation through the test hole, and then the road drilling waste can be taken out to expose the foundation part with the clamping block, and then the test sand and gravel are introduced into the test cylinder, and then the sand and gravel can be conveyed to the foundation part through the calibration compaction assembly for compaction test detection, and the lower end of the test cylinder can also be aligned with the test hole to improve the compaction accuracy.

The application relates to the technical field of waste drilling fluid treatment, and discloses a modifier for treating water-based drilling waste and a preparation method thereof; according to weight parts, the raw materials of the modifier include 30-40 parts of potassium persulfate, 10-25 parts of ferric chloride, 20-40 parts of quaternary ammonium cation polymer and 10-20 parts of magnetized modified attapulgite clay. The modifier for treating water-based drilling waste provided in the application solves the problem of incomplete gel breaking in the water-based drilling waste treatment process through synergistic action of various components, forms an oxidation-catalysis-flocculation-magnetic separation four-stage synergistic treatment process, reduces the metal ion content in the liquid phase after solid-liquid separation, makes the liquid phase meet the drilling fluid water preparation requirement without further treatment, simplifies the treatment process and reduces the cost.

The utility model relates to the field of water-based well drilling waste treatment, in particular to a water-based well drilling waste solid-liquid separation device which comprises a collection box, a separation barrel is obliquely and rotatably connected to the top of the collection box, a discharging plate is fixedly connected to the front end of the collection box, and the front end and the rear end of the top of the collection box are fixedly connected with a first supporting frame and a second supporting frame respectively. A circular ring is rotationally connected between each first supporting frame and the corresponding second supporting frame, the circular ring at the front end is rotationally connected with the front end of the separating cylinder, the circular ring at the rear end is rotationally connected with the feeding port, a hole cleaning mechanism is rotationally connected between the first supporting frame and the second supporting frame on the left side, and a driving mechanism is fixedly connected to the rear end of the collecting box. A collecting cavity is formed in the upper surface of the collecting box, placing blocks are fixedly connected to the front end and the rear end in the collecting cavity respectively, a subdivision mechanism is arranged at the tops of the placing blocks, the device can effectively prevent separation holes of the roller from being blocked by waste, and meanwhile, the solid-liquid separation effect of the roller on the waste is further improved.

The utility model discloses a drilling waste liquid rock debris separating device in the technical field of rock debris separation, which comprises support rods, a separating box and a mixing mechanism, the separating box is fixedly connected with the upper ends of the support rods, the upper end of one side of the separating box is fixedly connected and communicated with a liquid inlet pipe, the lower end of one side of the separating box is fixedly connected and communicated with a liquid outlet pipe, and the mixing mechanism is fixedly connected with the liquid outlet pipe. A control valve is connected in the liquid inlet pipe, the upper end of the separation box is fixedly connected and communicated with a feeding pipe, a chip outlet is formed in the lower end of the separation box, a sealing cover is in threaded connection with the lower end, located at the chip outlet, of the separation box, and the mixing mechanism is connected in the separation box and used for promoting mixing of a flocculating agent and waste liquid. The utility model has the advantages that: in the embodiment of the utility model, the flocculating agent is mixed with the drilling waste liquid, so that the settling separation of the drilling waste liquid is realized, the separation effect is good, the separation efficiency is high, the mixing of the flocculating agent and the drilling waste liquid can be promoted through the mixing mechanism, and the scraping plate can promote the discharge of solid substances from the scrap outlet.

The invention belongs to the technical field of waste treatment, and relates to a well drilling waste cascade degradation treatment system and method based on electrochemical in-situ synthesis of H2O2. The drilling waste cascade degradation treatment method based on electrochemical in-situ synthesis of H2O2 comprises the following steps: adding an iron-based coagulant into drilling fluid waste slurry, and stirring to form a floccule system; h2O2 is produced in situ by adopting an electrochemical synthesis reactor, and a H2O2 solution is obtained; putting the H2O2 solution into the floccule system in batches, stirring for reaction, adding calcium oxide, and performing solid-liquid separation after the reaction is stopped to obtain a mud cake; and adding a microbial liquid to the mud cake, and reacting to obtain the drilling waste meeting the emission standard. According to the method, high-concentration H2O2 is synthesized in situ by utilizing an electrochemical technology, a two-stage physicochemical process is adopted, primary degradation of the polysulfonate drilling waste is realized through multifunctional gradient utilization of an iron-based coagulant, and finally, the waste is deeply degraded by combining a microbial degradation effect.

The present invention belongs to the technical field of tunnel construction, and specifically relates to a tunnel vault drilling device, including a cart support, a lifting module, a rotating module, a propulsion module, a punching module and a waste collection module, wherein the lifting module is vertically mounted on the cart support, an L-shaped plate is arranged on the sliding block of the lifting module, the rotating module includes a support seat, a first motor, a worm and a turbine, the support seat is mounted on the L-shaped plate, the first motor is arranged at the bottom of the support seat, the worm is rotatably arranged in the support seat, the output end of the first motor is fixedly connected to the worm, mounting seats are hinged on both sides of the support seat, the mounting seat is fixedly connected to the worm, the turbine is arranged on a hinged shaft in the support seat, the worm is meshed with the turbine, the propulsion module is arranged on the mounting seat, the punching module is arranged on the propulsion module, and the waste collection module is arranged on the top of the propulsion module. The present invention can realize the adjustment of the drilling angle, collect drilling waste, and optimize the construction environment.

The utility model discloses a water-based well drilling waste conveying device which comprises a conveying box, a filter plate installed in the middle of the conveying box in an inserted mode, a fixing frame and a supporting plate, the fixing frame and the supporting plate are used for supporting, and a connecting mechanism used for driving the conveying box to move left and right in the middle of the fixing frame is arranged at the right end of the conveying box. Fixing mechanisms are arranged at the left end and the right end of the front side of the filter plate, the fixing mechanisms drive the filter plate and the conveying box to form a detachable structure, and the front end and the rear end of the conveying box are fixedly connected with movable blocks used for supporting. According to the water-based well drilling waste conveying device, filtered waste can be directly discharged and conveyed outwards through a discharging barrel, a filter plate and a conveying box can be very conveniently detached, an auxiliary block and the filtered waste are treated, the filter plate is prevented from being blocked by the waste in the long-term use process, and the water-based well drilling waste conveying device is convenient to use. And the whole structure is relatively simple, and the use cost is relatively low.

The utility model discloses a mud vibration separation device for recycling drilling waste mud, which relates to the technical field of separation devices and comprises a sleeve. The settling cylinder is arranged at the top end of the sleeve, and the bottom of the settling cylinder is of a conical structure; the sludge discharging mechanism is arranged at the bottom of the sleeve and is used for discharging sludge in the settling cylinder; the vibration motor is arranged at the bottom of the settling cylinder and is used for vibrating the slurry; the sludge discharging mechanism comprises an electric push rod assembled in the sleeve through a vertical plate, a driving motor is assembled at the output end of the electric push rod, a rotating shaft is assembled at the output end of the driving motor, a shielding disc is fixedly connected to the top end of the rotating shaft, and the shielding disc is arranged in a bottom port of the settling cylinder; therefore, solid-liquid separation operation of the waste drilling mud can be completed, and solid materials in the settling barrel can be discharged easily.

The utility model discloses crawler-type drilling machine drilling wastewater treatment equipment which comprises a frame body and a crawler machine arranged below the frame body, a mud-water separation box and a static grid plate settling box are arranged above the frame body, the mud-water separation box is connected with a vibration separation box through a first pneumatic diaphragm pump and a pipeline, and the vibration separation box is communicated with the static grid plate settling box. The other end of the static grid plate settling box is communicated with a precise backwashing filter, a sludge separation auger and a first sludge discharge auger are arranged in the sludge-water separation box, a vibrator and a filter screen are respectively arranged above and inside the vibration separation box, and an interlayer guide plate assembly and a second sludge discharge auger are arranged at the bottom of the static grid plate settling box; through the quadruple filtering function of the product, the technical problem of water resource waste caused by the fact that sewage cannot be recycled is solved, and the beneficial technical effects of solving water resource waste, reducing abrasion of the coal mine drilling machine, prolonging the service life of spare and accessory parts of the coal mine drilling machine and reducing the system failure rate are achieved.

The present invention discloses an moxa stick punching device for warm acupuncture therapy and its usage method, belonging to the technical field of moxa stick processing. It includes a base, a turntable is rotatably connected to the top of the base, and a plurality of transfer platforms for limiting moxa sticks are provided inside the turntable. A plurality of punching bodies are provided at positions corresponding to the transfer platforms on the top of the base, and a feeding mechanism is provided on the top of at least one side of the transfer platform. In the present invention, through the designed punching mechanism and the pressing plate, the continuously downward pressing drill bit can drive the top pressing plate to contact the punching end of the moxa stick. At this time, the waste chips on the periphery of the moxa stick punching can be continuously pressed under the pressing action of the pressing plate. Through the linkage cooperation of the pressing plate and the drill bit, while continuously pressing down to the set depth, the pressing plate is precisely fitted with the end face of the moxa stick, realizing the time sequence coordination of drilling operation and waste chip treatment, effectively constraining the drilling waste chips in the pressing area, eliminating the risk of scattering caused by fiber fluffiness, avoiding the scattering of punching waste chips affecting subsequent packaging and sales, and improving the ash compactness at the tail of the moxa stick.

The invention discloses a water-based mud drilling cutting composite drying and curing agent and a use method thereof, and belongs to the technical field of drilling waste curing, and the water-based mud drilling cutting composite drying and curing agent comprises the following raw materials in parts by mass: an agent A: 15-20 parts of cement, 1-3 parts of sodium silicate, 1-3 parts of sodium dodecyl naphthalene sulfonate, 3-8 parts of silicon dioxide and 5-10 parts of polyvinyl alcohol fiber; 3-7 parts of carboxymethyl cellulose, 4-7 parts of aluminum sulfate and 3-5 parts of polyferric sulfate; and an agent B: 5-10 parts of calcium formate, 5-10 parts of calcium oxide, 1-3 parts of magnesium oxide, 2-4 parts of ferric chloride, 10-15 parts of bentonite, 10-15 parts of fly ash, 1-3 parts of phthalic anhydride and 3-5 parts of an MT-18 heavy metal trapping agent. The water-based mud drilling cutting composite drying and curing agent is obtained by compounding the specific raw materials according to the specific ratio, the curing time can be obviously shortened, the using amount of the drying and curing agent is reduced, the drying and curing effect is excellent, and the drying and curing agent is suitable for wide application.

The utility model relates to the technical field of well drilling waste treatment, in particular to a water-based well drilling waste reinjection treatment system which comprises a waste collecting tank, a slurry mixing tank, a dispersing tank, a first vibrating screen, a circulating tank, a slurry preparing tank, a slurry storage tank and a reinjection pump set. The dispersing tank is also provided with a feeding hole; a fine particle outlet of the first vibrating screen is connected with a circulating tank, a coarse particle outlet of the first vibrating screen is connected with a grinding machine, a discharging port of the grinding machine is connected with the circulating tank, and the circulating tank is further connected with a feeding port of the first vibrating screen through a circulating pipe; and a liquid inlet is also formed in the slurry preparation tank. The treatment system has the advantages of high treatment efficiency, large treatment capacity, high injection efficiency, good safety and stability in the injection process and the like.

The utility model discloses drilling equipment capable of recycling sweeps, which belongs to the technical field of drilling and comprises a machine table. A guide rail conveyor is installed in the middle of the machine table, and a plurality of rotors distributed at equal intervals are arranged on the guide rail conveyor. A mounting assembly is fixedly mounted on a rotor of the guide rail conveyor; a punching mechanism is installed on the machine table and comprises a pressing assembly, a punching assembly and a positioning assembly, the first drilling station and the second drilling station are each provided with one pressing assembly and one punching assembly, and the output end of the punching assembly of the first drilling station is aligned with the first vacancy. The output end of the punching assembly of the second drilling station is aligned with the second hole site. The second drilling station is provided with a positioning assembly used for positioning the first vacancy. The pressing assembly, the first drilling station and the second drilling station are provided with waste recycling assemblies used for recycling drilling waste. Through the mode, the drilling precision is guaranteed, meanwhile, waste chips are prevented from splashing, and the waste chips are collected.

This utility model discloses a chemical dosing device for drilling waste flushing fluid, including a support frame, a premixing component, a dispensing valve, a secondary mixing component, and a water supply component. The premixing component consists of a storage tank, a dispensing cylinder, and a rotating drum. A spiral drive plate on the outer wall of the rotating drum forms a spiral flow channel with the inner wall of the dispensing cylinder, and a stirring rod is installed on the inner wall of the rotating drum. The dispensing valve has three output ends, connecting the bottom port of the dispensing cylinder to three dispensing tanks. The secondary mixing component includes three independent dispensing tanks, each equipped with a stirring mechanism. The water supply component supplies water to the spiral flow channel through an inlet, driving the rotating drum to rotate. This utility model achieves premixing of the chemical powder by driving the rotating drum to rotate using water flow dynamics. Combined with the dispensing valve, the chemical solution is selectively distributed to multiple tanks, and then deeply mixed by the secondary stirring mechanism. This solves the problems of powder agglomeration, uneven mixing, high energy consumption, and inability to adapt to multiple working conditions in existing devices. Ultimately, it achieves efficient homogenization of the chemical solution, reduces energy consumption, and improves the flexibility of waste flushing fluid treatment.

The invention relates to the technical field of oilfield development engineering, and discloses delayed gel, a profile control agent and a preparation method of the profile control agent, and the delayed gel comprises the following components in percentage by mass: 10-40% of sulfonated tannin extract, 1.0-4.0% of urotropine, 1.0-4.0% of hydroquinone, 10-20% of silicate particles and the balance of water; the profile control agent is prepared from the following raw materials: drilling wastes, a consolidation agent and delayed gel, the drilling waste is composed of oil-based drilling cuttings and oilfield wastewater. The oilfield hazardous waste oil-based drilling cuttings are used as the main raw material of the profile control agent, so that the oilfield exploitation cost can be reduced, and harmless and resource utilization of the oil-based drilling cuttings can be realized; the filling layer is formed by utilizing the characteristics that the content of solid-phase particles in the oil-based drilling cuttings is high and the solid-phase particles with different size fractions exist, and the mixed liquid of the oil-based drilling cuttings and the oilfield wastewater stops flowing in a stratum dominant channel after the delayed gel is formed, so that plugging is realized.

According to the purification treatment device and method for the well drilling waste hydraulic filtrate, in the device, an output shaft of a conveying motor is connected with an impeller to drive the impeller to convey the well drilling waste hydraulic filtrate to a first pipeline, and the well drilling waste hydraulic filtrate enters a stirring cavity through a second pipeline and forms a rotational flow state under operation of a stirring motor to achieve stirring treatment; and the purification cavity is formed in the other side, opposite to the stirring cavity, of the first pipeline in a communicating mode, the purification cavity comprises at least one filter plate, and the filter plate is transversely arranged in the purification cavity to filter the drilling waste hydraulic filtrate. According to the device, the purification treatment performance of the waste hydraulic filtrate is improved, and the recycling and up-to-standard emission of the drilling fluid are ensured.

The present invention discloses a mineral processing method for efficiently recovering barite from heat-treated drilling waste, comprising the following steps: (1) wet-screening and classifying the drilling waste containing barite; (2) magnetically separating the undersize product to obtain a magnetic product and a non-magnetic product; (3) performing a roughing separation and a fine separation on the non-magnetic product to obtain a barite powder product 1; and (4) scavenging the roughing tailings three times, combining the scavenged concentrates, and then fine separation twice to obtain a barite powder product 2. The present invention adopts a mineral processing method to efficiently recover barite from heat-treated drilling waste, and obtains two barite powder products of different grades, both of which can be recycled as drilling fluid raw materials, thereby realizing resource utilization of waste and reducing environmental hazards.

The invention discloses a drilling waste liquid recycling treatment device under a microbial synergistic effect, and relates to the field of wastewater treatment.The drilling waste liquid recycling treatment device comprises a treatment box, an ozone generator is installed at the bottom of the treatment box, a pretreatment layer is installed at the top of the treatment box, and a dispersion plate is connected to an air outlet part of the ozone generator; a plurality of air outlet pipes are arranged at the top of the dispersion plate, one end of each air outlet pipe is connected with the interior of the treatment box, the side wall of the treatment box is connected with a fixing box, the fixing box communicates with the treatment box, and a water pump is installed on one side of the fixing box. The waste liquid subjected to microbiological treatment is introduced into the treatment box, ozone is generated by the ozone generator, and the ozone reacts with organic pollutants contained in the waste liquid in the treatment box, so that the organic pollutants which are not subjected to microbiological treatment in the waste liquid are effectively removed.

The invention discloses a roadbed material prepared from waste drilling mud as well as a preparation method and application of the roadbed material, and relates to the technical field of mud resource utilization. Preparation raw materials comprise the following components in percentage by mass: 6-20% of petroleum coke residues, 1% of nano kaolin, 10-15% of ground fly ash, 0-7% of ground steel slag powder, 3-5% of silica fume, 1.5% of ferric trichloride or 2% of aluminum trichloride and the balance of waste slurry. The method has the beneficial effects that the roadbed stabilizing soil and the roadbed filling soil are mainly prepared by curing the waste mud, and roadbed curing components comprise the desulfurized petroleum coke residues, the nano kaolin, the silica fume, the ground fly ash, the ground steel slag powder and a small amount of ferric trichloride or aluminum trichloride; industrial products such as cement and lime in a conventional roadbed soil mixing ratio are replaced for preparing a roadbed soil system.

The utility model relates to the field of waste treatment, in particular to a water-based drilling waste filtering device which comprises a bottom plate, a main plate fixedly connected to the surface of the bottom plate, a vibration mechanism fixedly connected to the surface of the main plate, a cleaning mechanism rotationally connected to one side of the surface of the main plate, and a filtering box fixedly connected to one side of the vibration mechanism. A water outlet pipe is fixedly connected to the bottom of one end of the filter box; a waste pipe is fixedly connected to the top of one end of the filter box; a liquid medicine pipe is fixedly connected to the top end of the filter box; a liquid medicine box is slidably connected to the surface of the liquid medicine pipe; the water-based well drilling waste filtering device has the advantages that sludge can be conveniently filtered by the water-based well drilling waste filtering device, the filter plates can be prevented from being blocked by the sludge, the water-based well drilling waste filtering device can vertically vibrate in filtering procedures, and accordingly the filtering efficiency can be improved.

The application provides an LH-SBM environment-friendly high-performance synthetic base drilling fluid system recycling system and process, and belongs to the technical field of drilling fluids, and solves the problems of single use function, non-recyclability, difficult treatment, serious pollution and difficult discharge of drilling waste liquid and the like of the existing drilling fluid. The application comprises the following steps: mixing raw materials to form a synthetic base drilling fluid system; injecting the high-performance synthetic base drilling fluid system into a well for drilling work, and obtaining a synthetic base drilling mud; preliminarily separating the drilling mud to obtain drilling cuttings liquid and drilling cuttings, and recycling the drilling cuttings liquid into the drilling fluid system; sequentially preheating and heating treating the drilling cuttings to obtain tail gas and solid phase; cooling treating the solid phase to obtain clean soil; dust removing and purifying the tail gas, and then condensing and recycling the tail gas to obtain synthetic base base fluid and gas phase, and recycling and utilizing the synthetic base base fluid; purifying the gas phase through a sedimentation pool, and then obtaining direct discharge gas through a flare or activated carbon adsorption, and directly discharging the direct discharge gas into the atmosphere.

The utility model belongs to the technical field of separation, and relates to an oil stain separation optimization device for petroleum drilling waste liquid treatment, which comprises a separation pipe, a diversion trench is fixedly connected to the middle of the separation pipe, a separation groove is fixedly connected to the end part of the diversion trench, a plurality of groups of torsion springs are fixedly connected to the middle of the inner side of the separation groove, and baffle plates are hinged to the middle parts of the plurality of groups of torsion springs; a containing groove is formed in the middle of the separating groove, and a connecting assembly is arranged in the middle of the blocking piece. According to the utility model, waste liquid can be stored in the separation tank under the matching action of a plurality of groups of baffle plates, then the waste liquid can be precipitated in the separation tank, and after the precipitation is completed, the liquid on the upper layer of the middle part of the separation tank can be taken out from the middle part of the separation tank, and then the connecting components can be taken out from the middle parts of the baffle plates; and sediment can fall into the middle of the separation pipe through the flow guide groove, then solid-liquid separation can be conducted on waste liquid in the well drilling process, and waste of drilling fluid in the working process can be reduced.

The utility model discloses a well drilling waste separating device which comprises a mounting frame and a tank body, a top plate is arranged at the top of the mounting frame, the left side and the right side of the tank body are connected with the inner walls of the left side and the right side of the mounting frame through connecting blocks respectively, and a discharging pipe is arranged at the bottom of the tank body. The bottom of a first mounting plate is connected with the bottom of the inner wall of the tank body through a plurality of connecting rods distributed in an annular array, the device comprises a placing tank, the top of the first mounting plate is coaxially connected with the bottom of a second mounting plate through a rotating assembly, and the top of the second mounting plate is connected with the bottom of the placing tank through a connecting mechanism; the edge of the upper end face of the first mounting plate is connected with the edge of the bottom of the second mounting plate through a stabilizing assembly, and hanging lugs are arranged on the two sides of the edge of the upper end of the containing tank. According to the centrifugal tank, a worker can conveniently take out the centrifugal tank from the interior of the tank body, the labor intensity is reduced, and the working efficiency is improved.