Drilling rig solids control system equipment of Sichuan CBM Drilling

Sichuan Province is an area rich in natural gas resources. In addition to conventional natural gas, Sichuan also has a huge amount of unconventional natural gas resources. As a kind of unconventional natural gas, coal-bed methane is stored in coal seams with methane as the main component. In terms of coal-bed methane, although Sichuan has abundant coal-bed methane resources, large-scale development in recent years is still in its infancy.

The choice of CBM well type and drilling technology depends on geological conditions such as the buried depth, thickness, mechanical strength, pressure, type of formation combination, and wellbore stability of the coal reservoir. Sichuan CBM Drilling Company’s drilling rig solids control system equipment generally includes: mud shale shaker, cyclone desander, cyclone desander, mud desander and desander integrated machine, centrifuge, sand pump, shear pump, submerged slag Mud pump, mud agitator, jet mixing device, mixing tank, etc.

The scientific and reasonable drilling rig solids control system can effectively control the solid particles in the mud and ensure that the solid particles in the mud are controlled in

within 5μm~15μm, the mud parameter ratio can be carried out, the mud quality is obviously improved, the drilling speed can be increased, and the service life of the mud pump and the drilling rig can be effectively improved.

KOSUN- China Solids Control Leader&Drilling Waste Management Expert
Email: sales2@adkosun.com
WhatsApp/Wechat:+86 18792396268
Contact person: Lily Wang
Online consulting:

Working Principle of Vacuum Degasser

The Vacuum Degasser separates the gas (CH4, H2S, etc.) in the drilling fluid through compulsory measures, which can stabilize the specific gravity and viscosity of the drilling fluid, stabilize the performance of the drilling fluid, blowout and blowout accidents, and reduce cavitation. In the suction pipe mud tank, it can be used as a high-power agitator under the condition of no air immersion in the mud.

Working Principle of Vacuum Degasser

1. The suction of the vacuum pump is used to make the mud enter the vacuum tank, and the gas is pumped out of the vacuum tank by using it. The vacuum pump plays two different roles here.

2. The water ring vacuum pump is always in an isothermal state during the working process, suitable for the suction of flammable and explosive gas, and has reliable safety performance.

3. The mud is shot to the four walls at a high speed through the window of the rotor, the bubbles in the mud are broken completely, and the degassing effect is good.

4. The main motor is biased and the center of gravity of the whole machine is lowered.

5. The belt drive is adopted to avoid the complexity of the deceleration mechanism.

6. The application of the steam-water separator does not cause water and air to be discharged at the same time, so that the exhaust pipe is always unblocked. In addition, it can also circulate water to the vacuum pump, saving water.

7. The suction pipe is inserted into the mud tank and can be used as a high-power agitator when the mud is not immersed in air.

Structure and Composition of Vacuum Degasser:

The composition of Vacuum Degasser: 1, suction pipe 2, rotor 3, separation wheel 4, top cover 5, method blue blocking plate 6, exhaust pipe 7, vacuum pump 8, water supply pipe 9, gas-water separator 10, exhaust Short section.

KOSUN- China Solids Control Leader&Drilling Waste Management Expert
Email: sales2@adkosun.com
WhatsApp/Wechat:+86 18792396268
Contact person: Lily Wang
Online consulting:

Working principle of cyclone desander

Origin of cyclone desander:

Sand removal equipment is often eroded, resulting in solid particle deposition and pipe blockage. In order to solve this problem, a solid-phase/liquid-phase swirling desander device has been developed for separating and eliminating solid particles in well fluids. Compared with the traditional filter desander, kexun swirl desander has the characteristics of compact structure and high working efficiency.

Working principle of cyclone desander:

The basic principle of the cyclone desander is to use centrifugal force to introduce the fluid tangential direction into the conical shell of the cyclone desander. The gravity action pushes the solid particles to the surface of the cone and runs down to the outlet of the separator. The secondary liquid swirl generated in the separation shell causes the liquid to migrate upward and discharge from the overflow port through the swirl detector. The smaller the diameter of the desander cyclone is, the greater the separation effect will be.

Features of KOSUN cyclone desander:

  1. Simple structure, easy operation, safe and reliable use, almost no maintenance;
  2. Compared with the expanded pipe, buffer box and other sand removal equipment, it has the advantages of small volume, large processing capacity and saving field space;
  3. Sand can be removed from the water during the continuous water supply;
  4. It avoids the phenomenon of secondary pollution of water quality in other ways of sand removal and has high efficiency of sand removal.

It is recognized at home and abroad that mud solid control equipment is one of the important symbols of scientific drilling.

It is recognized at home and abroad that mud solid control equipment is one of the important symbols of scientific drilling. Through the continuous improvement and improvement of drilling fluid solid-phase control equipment in recent 10 years, it has a significant effect on improving drilling technology, reducing the maintenance workload of circulation system, ensuring the performance of drilling fluid, reducing downhole accidents, increasing drilling speed and reducing cost.

Prior to the 1970s, the petroleum drilling industry used extremely crude drilling fluid shale shaker, with a separation size of only 400 microns and solid particles re-entering the mud circulation system.Later, ultra-fine vibrating screen, cyclone desander, mud desander, drilling fluid centrifuge, vacuum degasser, mud mixer, slurry distribution device, mud tank and electrical operation cabinet, with the total weight of more than ton, the total power consumption has been close to 300KW.Solid content can be controlled to a minimum of less than 5%, and the low-density properties of the drilling fluid can be adjusted as needed.

There is no doubt that these advances have brought about profound changes in the oil drilling industry. But at the same time also greatly increased the well team site repair, maintenance, use of the workload and consumption.Therefore, on the basis of constantly reducing the performance of the mud solid control system, it has become a very concerned issue for experts of mud solid control equipment at home and abroad to simplify the equipment, reduce energy consumption and improve reliability.

Advantages of drilling mud system

Operating principle of drilling mud non-landing system: In the process of oil and gas field drilling, the drilling mud and cuttings are treated continuously while drilling through specific equipment and technology, and the treated mud is recycled repeatedly, and the cuttings and harmful substances are treated, so as to protect the soil at the drilling site from being polluted. The treatment process is divided into: first, solid-liquid separation and waste residue recovery unit; Second, the waste drying unit.
Advantages of drilling mud system: The use of the non-landing mud system eliminates the direct excavation of the circulation pool, reduces land use, reduces related costs, and reduces the workload of the well team.Once the system is put into use, it can not only realize the continuous treatment of drilling mud and solid waste, but also recycle the two, which is both environmentally friendly and energy-saving.Mud pollution to the environment will be further controlled, drilling operations will be green.At the same time, the mud system can directly obtain good social and economic benefits.
1. The recycling and clean production of solid waste meet the requirements of circular economy and environmental protection, effectively reduce the environmental risk caused by waste drilling fluid, and help to protect the ecological environment; Ii. The “smaller” mud and sewage pool reduces the occupied area of the land and saves a certain amount of land collection fee for the oil field company; 3. Compared with the curing treatment cost of waste mud mainly used before, the use of the non-landing mud system has the characteristics of low cost and good effect. Cuttings separated by this technology can be discharged to the standard. As paving material, crop cultivation soil, etc. The water can be recycled to achieve the purpose of waste utilization, energy conservation and emission reduction.

The solid control system for oil and gas drilling

The solid-control system, also known as the drilling fluid purification system, is mainly used for solid-phase control and solid-liquid separation in the drilling fluid, so that the drilling fluid can be recycled. The solid control system is composed of 3-7 composite tanks, equipped with 4-stage purification equipment, suitable for oil drilling projects of 2000-7000m.This innovative system USES a composite tank with a tapered base and a mud mixer at the edges to prevent solid deposits in the drilling fluid. In addition, mud tanks and mud boxes can be separated or combined as required by the drilling process. Each tank is connected to each other through a network of pipes, and the suction valve is flexible when open and tight when closed.
As a manufacturer of solid control equipment that has passed the us API and ISO certification, KOSUN’s solid control system has also passed the European Union CE certification, which can meet the requirements of export developed countries. KOSUN’s solid control system has been exported to more than 60 countries and regions, has been unanimously recognized by customers, has accumulated a good reputation in the industry.
The solid control system for oil and gas drilling usually includes the following equipment: 1. The drilling fluid vibrating screen can separate solid particles larger than 100 microns; 2. Drilling fluid desander, capable of separating 40-100 micron solids; 3. Desilter to separate 20-40 micron particles; 4. Drilling fluid centrifuge can separate 2-7 micron fine particles.

Shale shaker in preparation for operation, the technical personnel to carry out a basic inspection.

Shale shaker in preparation for operation, the technical personnel to carry out a basic inspection, especially the new shaker, but also to carry out a detailed inspection, inspection work completed, all aspects of the operation standard, you can start the shale shaker.

The matters needing attention in the use inspection of vibrating screen are:

  1. Check whether the attached safety splint should be removed before starting;
  2. Check whether the screen surface on the screen is pressed;
  3. Check whether all locking parts are firm;
  4. Check the connection between vibration motor and screen body;
  5. Check the connection between rubber pad, screen body and frame;
  6. Check the vibration motor;
  7. Check the power supply voltage of the vibrating motor;
  8. Check the interlock control device of the vibration motor;
  9. The staff shall remove the end caps at both ends of the vibrating motor used on the shaker, and then check whether the phase Angle corresponding to the fan block is consistent. The staff shall then tighten the fastening screws of the fan block;
  10. The installation angles of the two motors shall be consistent;
  11. Check the feeding device;
  12. Tighten the gate;
  13. No-load test of the shale shaker;
  14. During the test, there shall be no collision or abnormal sound between the screen body and the frame;
  15. Check the amplitude, the screen body for reciprocating linear movement should not have distortion and other abnormal phenomena;
  16. After 10-15 minutes of operation, tighten the bolts for the driving mechanism with a wrench.

KOSUN’s HDD trenchless mud recovery system is designed and manufactured to meet trenchless technical requirements.

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.

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.

Final disposal and utilization of sludgeⅡ

After sludge is treated and disposed by a series of methods, there are generally the following final disposal methods for the dried sludge:

Energy utilization

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.