跳至主要内容

Drilling Cuttings & Drilling Waste Separation Development


Drilling waste separation from the mud at the sedimentary rock shakers is also coated with such a lot mud that square measure|they're unsuitable for the drilling fluid recycle or disposal step or are tough to handle or transport. Constituents of the drilling cuttings or the mud coating them, like oil or metals, could leach from the drilling waste, creating them unsuitable for land application or burial needs. forms of materials will be other to drilling cuttings to solidify and stabilize them. 

Solidification could be a technology that encapsulate the drilling waste in an exceedingly monolithic solid of high structural integrity. The encapsulation is also of fine drilling waste particles or of an outsized block orinstrumentality of drilling cuttings

Solidification doesn't essentially involve a chemical interaction between the drilling waste separation and also theactivity reagents however could automatically bind the drilling waste into the stone. contamination migration is restricted by immensely decreasing the expanse exposed to natural process associated/or by uninflected the drilling waste at intervals an fast capsule.


Stabilization is that the technology that scale back the hazard potential of drilling waste by changing the contaminants into their least soluble, mobile, or toxic type. The physical nature and handling characteristics of the drilling waste separation don't seem to be essentially modified by stabilization.

Usually, cement, fly ash, lime, and unslaked lime are used most often throughout solidification/stabilization additives for treating drill cuttings and alternative styles of drilling solids. A recent study tested seven alternativestyles of additives for stabilising drilling cuttings and assessing the performance of stable drilling cuttings as a substrate for growing wetlands plants. 

Usually the additives embody medium-ground mica-based material, fine-ground mineral, 3 completely differentindustrial mixtures of recycled polysaccharide fibers, walnut nut plug, and pecan nut plug. varied alternativeindustrial merchandise with proprietary compositions are marketed.

While not all drilling waste separation ar amenable to chemical fixation and stabilization treatments. Solidification/stabilization ought to be tailored for site-specific applications looking on the end-use of the treated material and also the chemical characteristics of the drilling waste. Laboratory tests conducted to work out the correct mix of additives to realize the required material properties is usually recommended.

评论

此博客中的热门博文

Mono Screw Pump Working Principle and Apllication

M ono screw pump , also called  sewage pump  or  progressive cavity pump ,  belongs to the rotor type positive displacement pump .   M ono screw pump  is depend ing  on the screw meshing with liner on the discharge and suction cavity to conveying liquid volume change.   It is a kind of method of pressurized screw pump, a main working parts by bushing has a double helix cavity (stator) and the stator cavity and its meshing singlehead screw screw (rotor).   When the input shaft through the universal joint drive making planets revolving around the center of the stator, rotor stator, rotor, vice is continuous mesh form sealed cavity, the seal chamber volume invariably uniform axial movement, the medium from the suction end of deputy to the stator, rotor pressure side, the suction medium sealed cavity through the stator without stirring and destruction. M ono screw pump  is an ideal pump used to feed drilling fluids to ...

Water Based Mud Drilling Cuttings Management

In  geotechnical engineering ,   drilling fluid is used to aid the drilling of  boreholes   into the earth , o ften used while drilling  oil  and  natural gas  wells and on exploration drilling rigs , and  also for much simpler boreholes  like   water wells . Liquid drilling fluid is often called drilling mud. The three main categories of drilling fluids are water-based mud (which can be dispersed and non-dispersed), non-aqueous mud, usually called oil-based mud, and gaseous drilling fluid, in which a wide range of  gases  can be used. The main functions of drilling fluids include :  providing  hydrostatic pressure  to prevent  formation fluids  from entering into the well bore, keeping the  drill bit  cool and clean during drilling, carrying out drill cuttings, and suspending the drill cuttings while drilling is paused and when the drilling assembly is brought in and out...

Drill Cuttings Separation by Shale Shakers

Drilling mud is pumped from the surface through the hollow drill string, exits through nozzles in the drill bit, and returns to the surface through the annular space between the drill string and the walls of the hole.  Drilling fluid is used to control subsurface pressures, lubricate the drill bit, stabilize the well bore, and carry the cuttings to the surface, among other functions. As the drill bit grinds rocks into drill cuttings, these cuttings become entrained in the mud flow and are carried to the surface. In order to return the mud to the mud circulating system and to make the solids easier to handle, the drill cuttings must be separated from the mud. The first step in drill cuttings separation  from the mud involves circulating the mixture of mud and cuttings over vibrating screens called shale shakers. The mud passes through the screens and is circulated back to the mud tanks from which mud is withdrawn for pumping downhole. The d...