Monthly Archives: June 2018

How to develops of drilling fluid mud cleaners

In the early 1970s, the mud cleaner was developed as an addition to the desander and desilter for reducing loss in the expensive liquid phase. Hydrocyclones discard a slurry, including the liquid phase, which can be expensive over time.

shale shaker

The mud cleaner takes the underflow from a bank of hydrocyclones and introduces the slurry to a very fine, pretentioned vibrating screen. The expensive liquid phase and most of the barite pass through the screen and back into the system while the larger solids are discarded. This was the first successful application of a screen, bonded to a rigid frame, using very fine screens.

shale shakers

Many mud cleaners have screen cleaners, or sliders, which are circular plastic pieces that vibrate against the bottom of the screen to prevent screen blinding. In weighted muds, screens of 200 mesh (74 microns) can be used, which is the upper size for commerical barite. For unweighted muds, the smallest practical size is 250 mesh (58 microns) for economical operation.

DC Machinery can produce all kinds of shale shakers with different sizes and types, can meet the requirements of different handling capacity and installation sizes.
Also, DC Machinery can produce duplex or triplicate shale shakers according to the actual requirements of clients and supply the corresponding pipelines.

Cost benefit of dewatering the drilling mud

Any water based mud or waste slurry can be dewatered using the patented tank system and the Clear Water Loop method. Bentonite and drill solids are removed from the water through a combination of flocculation and centrifugal (mechanical) force.

dewatering system

Being able to dewater the drilling mud as it returns to surface during the product line pull is advantageous, as it will eliminate the use of sumps or pits. The bentonite and drill cuttings are discharged in to the shale bin as a dry stackable waste product while the clean water can be stored and reuse on subsequent projects. This will reduce fresh water usage on site and the cost associated with transporting water to and from site.

This biggest cost benefit of dewatering the drilling mud is the elimination of wet waste disposal. Mud volumes can range from 1,000 m3 to 5,000 m3 (up to 1.3 million gal.) depending on the size of the project, typically this mud will be disposed of by land-spraying, or at a wet waste disposal facility.

Producing a dry stackable waste that passes a Paint Filter Test eliminates the need for vacuum trucks for either disposal method and provides clean water for reuse. In some cases the waste volume can be reduced by up to 80 per cent.

Drilling fluid centrifuge used for Oilfield

Drilling mud decanter centrifuge is the fourth stage equipments for a drilling mud system.Drilling mud cleaning first stage uses drilling fluids shale shaker ,then second stage uses desander,third desilter,(now drilling mud cleaner is widely used to replace desander,desilter).

centrifuges

There are 3 primary parts – the base, or skid – the stainless steel case – and the rotating assembly consisting of bowl and auger. The case gathers the separated materials in two chambers for re-use and disposal.

DC Solid control company can design and manufacture high speed, middle speed and low speed centrifuges. And can be used for many industries. One of the biggest advantages to having an oilfield decanter centrifuge is the size that it takes up.

drilling fluid centrifuge

Compared to other solids control equipment, a centrifuge takes up less real estate. On many oilfields the site footprint is not large enough to support a wide range of solids control equipment. A centrifuge is highly effective and efficient so you can separate solids from drilling liquids even on small drilling sites.

20pcs offshore mud skips delivery conform to DNV standards

Offshore mud skips are also called drilling cutting box in China which is used for transportation and safe handling of hydrocarbon contaminated drill cuttings to and from offshore platforms. These units provide a safe and efficient means of containment of drilling waste for transport to treatment and disposal sites.

SONY DSC

SONY DSC

Today, DC Solid control shipped 20 pcs offshore mud skips to Nigeria used in offshore drilling. The drilling cutting box are designed and manufactured to DNV 2.7-1 and EN12079 and are designed to withstand a vacuum of -0.5atm.

SONY DSC

SONY DSC

Features of this mud skips:

Material: JIS SPA-H/ GB Q345D,E36
Surface treatment: painted, with high anti-corrosion performance & compliant with environment protect trend
This Container Complies With DNV2.7-1 and EN12079-2006 Standard
Design Temperature: -20°C
Special for transportation and storage of offshore freight.

Please contact us if you have any requirements of any capacity drilling cutting box.

Compact structure of mud cleaners from DC Solid control

With the combination of a desander and desilter mounted over a powerful multi-functional shale shaker, , DC Solid control mud cleaners offer both high performance and versatility for the operator. This integration of advanced equipment puts forth a unit that can handle large volumes of circulating fluids and is able to retain fluid integrity.

SONY DSC

SONY DSC

DC Mud cleaners and are available in different configurations to meet customer requirements. 2-panel, 3-panel or 4-panel shakers are available with desanders and and/or high-volume desilters. Our new hydrocyclones technology replaces the conventional desanders and desilters cones with significant benefits.

SONY DSC

SONY DSC

The mud cleaner combination consists of two sets of hydro cyclones: a desander to eliminate particles of 120 – 60 μ, and a desilter which eliminates particles smaller than 60 to 20 μ.

The combination of varying physical mud cleaning principles results in a high capacity mud cleaning combination with high a operational efficiency and minimum maintenance, repair and replacement costs.

Contact DC Solid control office if you want get more info of it.

Hot sale model DCS700-3 shale shakers discount sale

Shale shaker is mainly composed of screen box, vibrator, hanging (or supporting) device and motor, etc. Usually, shale shaker is the first stage equipment of solid control system. And the most hot sale model is DCS700-3 is AWD Angle Adjustment System.

shale shakers

The patented lifting system allows for easy and quick operation, and simple maintenance. Compared with the usual lifting device of hydraulic cylinder, AWD deck angle adjustment system enables one person to steplessly raise or lower the screen basket from -1℃ to +5℃ without interrupting operation only by turning the handle, which is convenient and efficient.

The angles at left and right sides of screen basket are synchronously adjusted, which is more convenient and stable, and can avoid the common mud deviation. The rolling pulley structure is more labor-saving than the sliding type.

And the screen type is hookstrip stainless steel screens. The structure consisting of framework layer, supporting layer and working layer allows the screen more durable.

DC Solid control is a professional oilfield drilling fluids shale shaker supplier and manufacturer in China oil and gas drilling mud solids control industry. As the pioneer in this industry