KOSUN Solid Control Equipment Drilling Offshore

In China solids control industry, KOSUN is a solids control leader and expert in drilling waste management. KOSUN is capable of providing customers with such four series as oil & gas drilling solids control equipment, centrifuge, drilling waste treatment equipment and drilling security equipment, including 25 categories of products,such as shale shaker, desilter cone,shale shaker screen, desander, desilter,dryer shaker, vacuum degasser, centrifugal pump, submersible slurry pump, shear pump,mud agitator, mud gun, drilling fluid mud cleaner, decanter centrifuge, jet mud mixer, mud tank, diesel tank, water tank, complete solids control system,etc.

Solid Control Equipment Drilling Offshore
Solid Control Equipment Drilling Offshore

Solids control is a technique used in a drilling rig to separate the solids in the drilling fluids that are crushed by the drill bits and carried out of the well surface. Normally, a solid control system contains five stages: the mud tank, oilfield shale shaker, vacuum degasser, desander, desilter, and centrifuge. The shale shaker is used to separate big solids with diameter above 75μm, the desander treats solids from 45–74μm, and the desilter segregates solids between 15–44μm. Sometimes the desander and desilter are combined as one highly efficient mud cleaner. When air enters the drilling fluids, a vacuum degasser is used to separate the air. If no air is found in the mud, the degasser will work as a big agitator. All these stages are mounted on the top of the mud tank. After separating the solids, the clean mud can be pumped into the borehole again.

The drilling mud system will separate unuseful drilling cuttings and other solids among drilling fluids. It will correct drilling mud property and keep the drilling fluids performance good. Solid control effect to well drilling also includes holding proper gravity, density, weight, etc. Good solids control to well drilling will produce good quality drilling fluids during whole well drilling. The good drilling fluids will influence good drilling greatly. Use good drilling fluids, the well drilling will be fast and efficient, the drilling cost will be less than those bad solids control well drilling. During whole drilling mud system, we’ll get good and safe drilling condition decrease and even prevent blowout danger. So nowadays we take solids control as rather essential part for oil and gas well drilling, geothermal well drilling, CSM exploration, etc.

Tags: solids control equipment for sale, solid control equipment drilling for sale, mud solids control, solid control drilling, solid control in drilling, solid control system drilling, drilling mud solids control, mud solids control equipment, drilling mud solids control system, solid control equipment drilling.

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

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.

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.

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.

With the development of drilling technology, drilling depth is deeper and deeper, and mud requirements are more and more strict.

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:

  1. Treatment capacity is increased by 25%-30% compared with linear vibrating screen;
  2. Can adapt to a variety of geological conditions drilling mud recovery and purification;
  3. The excitation force can be adjusted;
  4. 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.

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:

  1. The task of the liquid-gas separator is to deal with the continuous gas phase and large bubbles;
  2. Provide appropriate residence time for small bubbles to gather in a certain depth below the liquid level;
  3. Solid debris cannot be deposited in the separator;
  4. Apart from the gas column reaching the wellhead, the separator can work normally.

The screw conveyor produced by xi ‘an KOSUN is used in the drilling waste disposal project.

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.