Horizontal directional crossing is a horizontal directional crossing construction technology used for trenchless construction in the process of gradually strengthening the awareness of modern civilization and environmental protection. Adopting horizontal directional crossing technology for pipeline crossing construction is the choice of urban municipal construction and electrification pipe network transformation, communication cable laying and crossing large and medium-sized rivers, lakes and non-removable buildings, and the construction method that does not damage the geomorphic state and protect the environment. In recent years, horizontal directional crossing technology in the world and the industry has been widely used, especially in environmental protection and municipal pipeline network reconstruction project and large pipeline crossing river engineering projects show its advantage, mud recovery purification system is combined with horizontal directional crossing the rig construction of form a complete set of matching, to complete the process of the construction of pipeline crossing.
KOSUN’s HDD trenchless mud recovery system is designed and manufactured to meet trenchless technical requirements and is used to purify mud returned from underground during trenchless horizontal directional crossing. HDD trenchless mud recovery system, compact structure, convenient handling, easy to use, widely used in the field of HDD trenchless and coal seam development.
KOSUN KSMR-1000 mud recycling and purification system is mainly used for trenchless horizontal directional crossing or coal-bed methane mining construction projects with treatment capacity below 1000GPM.This type of system is used to handle construction projects with high mud volume.
KOSUN KSMR-500 mud circulation recovery and purification system is mainly used for construction projects with trenchless horizontal directional crossing or coal-bed methane mining with treatment capacity below 500GPM.
KOSUN KSMR-200 mud circulation recovery and purification system is mainly used for construction projects with trenchless horizontal directional crossing or coal-bed methane mining whose treatment capacity is below 200GPM.
The ES translational elliptical shale shaker produced by KOSUN
adopts the long tube vibration motor as the power source, which has superior performance, reasonable structure, stable operation, long service life and low maintenance cost. Under the same conditions, compared with other types of shaker, the drilling fluid
processing capacity and sand transport and debris removal ability can be greatly improved, and can effectively overcome the phenomenon of “screen blocking” and “screen paste”.
KOSUN’s translational elliptical shale shaker
has an obvious advantage in the treatment of highly viscous drilling fluids. Under this condition, the optimized translational elliptical vibration
trajectory can effectively remove the viscous solid phase, so that the larger particles in the drilling fluid can be effectively removed. At the same time, relatively moderate vibration intensity can effectively reduce the consumption of vibrating screen.
Features and advantages of KOSUN ES translational elliptical shale shaker
1. The balanced elliptical trajectory can effectively reduce the phenomenon of screen hole blockage and ensure the screen penetration rate;
2. It is beneficial to improve the conveying speed of cuttings in viscous drilling fluid and prevent paste screening;
3. Can handle large proportion and high viscosity drilling fluid;
4. Drier cuttings;
5. Longer screen service life;
6. Quick tensioning system, easy to replace the screen;
7.-1°~+5° screen Angle adjusting device;
8. There are two types of feeding boxes: weir type and box type;
9. The hook edge screen has a flat screen.
After sludge is treated and disposed by a series of methods, there are generally the following final disposal methods for the dried sludge:
For sludge, engineering technology can be adopted to extract and synthesize the organic matter and heavy metal elements rich in sludge, so as to realize energy recovery. At present, sludge can be treated in an anaerobic environment, so that the microorganisms contained in the sludge can be fully fermented and degraded, and finally produce methane gas. After the methane is collected, it can be used as clean fuel, and the residual solid can be used as organic fertilizer. In the protection of the environment at the same time, the realization of high resource requirements. In addition, there are a series of technologies such as low-temperature sludge oil production technology and sludge fuel utilization technology to realize energy utilization.
Sludge for building materials
Another way to solve the sludge disposal is using sludge production of building materials, asphalt, through engineering technology can achieve the sludge system sludge ceramics grain biochemical fiberboard, sludge, sludge system of ecological cement and other building materials, the sludge of waste disposal requirements, protection of the environment at the same time to achieve the sludge.
With the development of drilling technology, drilling depth is deeper and deeper, and mud requirements are more and more strict. Some complex geological conditions under the ordinary mud shaker can no longer meet the requirements of use. Moreover, the performance of the ordinary drilling vibrating screen is not very stable, and the effect of drilling vibrating screen treatment can not be adapted according to the drilling geology, often there will be some run-slurry or “horseshoe effect”. The appearance of the translational elliptical vibrating screen has solved these problems.
The translational elliptical vibrating screen USES 2 vibration motors of different sizes and keeps them on a datum level. Due to the different steering and excitation force of the two motors, the motion trajectory is elliptical. And the movement track of the whole sieve box of the translational elliptical vibrating screen is the same. The ellipse of the translational ellipse vibrating screen is different from the ordinary ellipse, the ellipse track and the screen have a certain Angle, so the “horseshoe effect” is avoided.
Advantages of translational elliptical vibrating screen:
- Treatment capacity is increased by 25%-30% compared with linear vibrating screen;
- Can adapt to a variety of geological conditions drilling mud recovery and purification;
- The excitation force can be adjusted;
- Linear vibrating screen has the advantages of translational elliptical vibrating screen have.
The liquid-gas separator is mainly used to deal with large bubbles in drilling fluid. When gas invasion occurs, throttle exhaust operation should be carried out. When overflow occurs, kill the well; Drilling fluid enters the liquid-gas separator from the throttling manifold for degassing.
The drilling fluid separated from the above two conditions has small bubbles, which enter the vibrating screen for degassing, flow to the sunk sand bin, and then enter the vacuum degasser device for conventional degassing.
In the ultra-high pressure gas well drilling, because into the cylinder gas volume, liquid volume is very different. This requires that the treatment capacity of the separator should have a relatively wide range of adaptability, and its treatment capacity of gas and liquid should be able to meet the needs of well killing construction. In the design of the scheme, the following considerations should be taken into account:
- The task of the liquid-gas separator is to deal with the continuous gas phase and large bubbles;
- Provide appropriate residence time for small bubbles to gather in a certain depth below the liquid level;
- Solid debris cannot be deposited in the separator;
- Apart from the gas column reaching the wellhead, the separator can work normally.
The treatment of drilling waste is to control the water content of drilling cuttings in drilling mud, stabilize the performance of liquid phase, and achieve the purpose of dry treatment. The liquid phase can be used for secondary injection without destroying, so that the enterprises can expand the drilling scale without environmental protection worries.
The use of drilling mud not landing system eliminates the direct digging and circulating pool, reduces the land use, reduces the related costs, and reduces the workload of well crew. More importantly, once the system is put into use, it can not only realize harmless treatment of drilling mud and solid waste, but also recycle both of them, which is environmentally friendly and energy-saving. Mud pollution to the environment will be largely eradicated, so as to create a “green” logo, oil drilling exploration field to create greater social and economic benefits.
Solid liquid separation and waste residue recovery stage: drilling mud through the elevated manifold into the mud vibrating screen to remove large solid particles, and then sand pump pumping treated mud into the desander, desilter to remove sand and mud, mud treatment in the mud, the treated mud into the mud tank for further treatment.
The screw conveyor produced by xi ‘an KOSUN is used in the drilling waste disposal project, providing an effective and low-cost drillings transportation system for offshore drilling and land drilling devices. The screw conveyor adopts the combined structure of more than 12 feet in each section, which can be flexibly assembled and used in different drilling sites, with simple operation, stable structure, strong adaptability in working space and high safety performance. Thus, the working efficiency of the equipment is greatly improved and the cost and resources are saved. The screw blade of screw conveyor is made of wear-resistant material to ensure its service life.
When the screw shaft rotates, the material can only move forward along the bottom of the screw conveyor under the push of the blade due to the gravity of the material and the friction generated by the friction between the material and the tank wall, which is just like the translation movement of the unrotatable nut along the rotating screw. The movement of the material in the intermediate bearing depends on the thrust of the material moving forward behind it. Therefore, the material transport in the conveyor, is a complete slip motion. In order to make the spiral shaft in a more favorable tension state, generally will drive the device and discharge port on the same end of the conveyor, and the feed port as far as possible on the other end of the tail near. The rotating spiral blade moves the material and carries on the transportation, causes the material not to revolve together with the spiral conveyor blade the force is the material own weight and the screw conveyor casing to the material the friction resistance. According to the different materials, there are solid surface, belt surface and blade surface. The spiral shaft of the screw conveyor has a thrust bearing at the end of the direction of material movement. Intermediate hanging bearings should be added when the captain is longer.
The application of vertical cuttings dryer is currently at home and abroad to solve the drilling waste management in areas such as solid-liquid separation dryer mud treatment equipment, the traditional waste sludge treatment is used more pressure filter, but the operation is more troublesome, and the intensity of labor is big, cost is high, and drilling cuttings dryer is the modern solid-liquid separation, it does not need to add chemicals, cover an area of an area small, simple operation, low cost but also strong processing capacity, processing waste solid phase moisture content is low.
With the continuous improvement of national environmental protection requirements, major oil fields are faced with the problem of drilling waste disposal.
The vc-1000 series vertical cuttings dryer produced by KOSUN is a vertical scraper discharge centrifuge, which separates solid and liquid phases through centrifugal separation principle. Vertical cuttings dryer can effectively recover liquid components in cuttings, making solid phase transition very dry. It is suitable for water-based mud, oil-based mud and synthetic mud to recover the mud in cuttings, thus reducing drilling costs and environmental pollution. Its processing capacity is 40~60 tons per hour, and the liquid content/oil content of the treated cuttings is lower than 5%, meeting international emission standards and environmental requirements. It can be used for cuttings treatment in land and sea drilling.
While working, raise the support of driller to the highest place to meet the driller’s driller discharge. The centrifuge is placed on the tank body of the pry seat, and the discharged liquid part flows directly into the bottom collection tank. While drilling fluid is needed, it can be delivered via a delivery pump or connected to a tank of similar height.
Drilling fluid desander is a combination of hydrocyclone desander and drilling fluid shaker. The main structure of the equipment is arranged in two upper and lower parts. The cyclone is arranged in the upper part. The small vibrating screen at the lower part is circular vibrating screen. The hydrocyclone desander is a secondary solid control device in the solid control system, which is used to separate solid particles with particle size larger than 47 microns in drilling fluid.
The drilling fluid desander produced by KOSUN is one of the important equipment for solid phase control of drilling fluid. Its function is to clear harmful solid phase, stabilize drilling fluid performance and improve drilling efficiency. According to the requirements of the customer, several groups of cyclones are selected to form the drilling fluid desander. The cyclone drilling fluid desander is widely used in oil drilling and horizontal directional drilling.
Features and advantages of drilling fluid desander produced by KOSUN:
- The fast drilling fluid desander is a two-stage solid control device for handling drilling mud, which can separate solid particles between 45 and 74 microns.
- The mud desander is made of polyurethane or high chromium cast iron with long service life;
- Clip-on type, easy to maintain;
- Compact design, small space;
- According to different treatment capacity, 1, 2 or 3 10″ or 12″ cyclone can be flexibly selected;
- Fast and flexible connection during user assembly.
Mud agitator is a kind of drilling fluid canister type solid control equipment, which is mainly used for mi xing drilling fluid, preventing solid phase particles of drilling fluid from depositing in its canister type circulation system, making the circulating drilling fluid performance stable and mixed evenly. The mud agitator produced by Xi ‘an KOSUN has compact structure and small area. Smooth operation, low operating noise, few wearing parts, long service life, high cost performance, has been recognized by various oil exploration companies, exported to many countries.
KOSUN MA series mud agitator is the equipment of drilling fluid tank solid control system, which is mainly used for mixing drilling fluid, preventing solid phase particles from deposition in its tank circulating system, making the circulating drilling fluid performance stable and mixing evenly. Agitator is composed of explosion-proof motor, reducer, frame and wave wheel assembly. The motor is connected with the reducer and the reducer is connected with the wave wheel shaft through a rigid coupling. The wave wheel is welded with four blade groups.
Advantages of KOSUN mud agitator:
- Optimized product structure, small floor space and compact structure;
- Stable operation, low operating noise, long service life, few vulnerable parts, high cost performance;
- High pressure airless spraying equipment is used for construction, and beautiful appearance and anticorrosive effect can be achieved through primer, medium paint, top paint and other processes;
- The mud agitator shaft and impeller are finely polished by pickling, galvanizing, hot-dipping zinc and passivation, which greatly improves the service life and anti-corrosion effect.