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Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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shield tunneling mud treatment system price
IOP Conference Series: Earth and Environmental Science ...
IOP Conference Series: Earth and Environmental Science ...

Carbonated water injection (CWI) refers to a method that using carbonated water (CO 2 dissolved in water under high pressure) as injected fluid to displace oil in the reservoir. At present there is no report about CWI study in tight oil reservoirs.

(PDF) Fracture Dissolution of Carbonate Rock: An ...
(PDF) Fracture Dissolution of Carbonate Rock: An ...

At this temperature, pure water viscosity is 0.47 cP, so the ,supercritical CO 2, phase has a liquid-like density, but a gas-like viscosity, and it is more than twice as compressible as an ideal (room temperature and pressure) gas.The initial pH in the column (Figure 3.26) was 6.44, but this quickly drops as acid reacts with the limestone to produce ,CO 2, and carbonic acid, with a resulting pH of 4.24.

Experimental Study and Modeling of Ultrafiltration of ...
Experimental Study and Modeling of Ultrafiltration of ...

To train and test these models, the experimental data collected during the polyacrylonitrile (PAN) UF process to treat the ,oily, wastewater of a Tehran refinery have been used. The proposed method utilizes a least-squares support vector machine (LSSVM) to carry out nonlinear modeling.

Scientific Articles - Oil&Gas Portal
Scientific Articles - Oil&Gas Portal

In the former CO 2 or N 2 are used to increase oil recovery. As shown in Figure 3 a) the carbon dioxide is injected at 1200 psi and density 5 lb/gal, it mixes with oil trapped into pores forming a concentrated mixture that goes back to the surface. Then, CO 2 is removed from the mixture, recompressed and injected again in the reservoir .

Dirty Business - American Chemical Society
Dirty Business - American Chemical Society

Supercritical CO. 2. is used to selectively extract caffeine in the third method. Supercritical carbon dioxide is a fluid state of carbon dioxide where it is held at or above its critical temperature and critical pressure.

1 - Science Search
1 - Science Search

Supercritical, or Liquid ,CO2, extraction operates under high-pressures, which transforms carbon dioxide (normally a gas at atmospheric pressures) into a ,fluid, with enhanced solvent characteristics. Carbon dioxide has many advantages over other less desirable organic solvents as ,CO2, is non-hazardous and leaves no undesirable solvent residues.

All About the Uses and Benefits of Orange Oil | Crooked ...
All About the Uses and Benefits of Orange Oil | Crooked ...

Be an ideal cleansing ingredient for those with oily skin and clogged pores; Clean, calm, and balance skin without stripping its natural oils; Exhibit anti-bacterial, antiseptic, astringent and anti-inflammatory properties, which benefit skin that is acne-prone, clogged, dull, or oily; Have a soothing, sedative, and uplifting effect on the mood

SUPERCRITICAL FLUID CLEANING OF BANKNOTES AND SECURE ...
SUPERCRITICAL FLUID CLEANING OF BANKNOTES AND SECURE ...

The method and apparatus include exposing the stack to a ,supercritical fluid, at a temperature and a pressure and for a duration sufficient to clean each secure instrument and not compromise each security feature and each visual data, and maintaining a securing mechanism on the stack during exposure of the stack to the ,supercritical fluid, such that cleaning each secure instrument includes one ...

Molecules | Free Full-Text | Recovery of Biomolecules from ...
Molecules | Free Full-Text | Recovery of Biomolecules from ...

The use of supercritical fluid extraction consists in the separation of the extractant from the matrix (which is usually solid, but can also be a liquid) using supercritical fluids as the extracting solvent. Carbon dioxide is the most used supercritical fluid, sometimes modified by co-solvents such as ethanol that change its polarity.

1 - Science Search
1 - Science Search

Supercritical, or Liquid ,CO2, extraction operates under high-pressures, which transforms carbon dioxide (normally a gas at atmospheric pressures) into a ,fluid, with enhanced solvent characteristics. Carbon dioxide has many advantages over other less desirable organic solvents as ,CO2, is non-hazardous and leaves no undesirable solvent residues.

Breakdown of a Pressurized Fingerlike Crack in a Permeable ...
Breakdown of a Pressurized Fingerlike Crack in a Permeable ...

The problem is of interest in reservoir waterflooding, ,supercritical CO 2, injection for geological storage, and other subsurface ,fluid, injection applications. ,Fluid, injection into a stationary crack leads to its elastic dilation and pressurization, buffered by the ,fluid, …

Blog | JeanneRose-blog | Aromatics & Herbs for All
Blog | JeanneRose-blog | Aromatics & Herbs for All

Turmeric ,CO 2, extract is used both in skincare and healthcare formulations as an anti-inflammatory and antiseptic. The rhizome is a historically well-known food and medicine used for thousands of years in India and has been recently recognized in Western medicine for its wide range of beneficial effects. TURMERIC – ,Uses, of the herb and the extract

Method for the removal and recovery of the oily component ...
Method for the removal and recovery of the oily component ...

The Applicant has now found that the oily part of cuttings coming from the drilling of oil wells can be removed with an extraction method which uses, as, solvent,, CO 2 in the liquid state, obtaining an oil with the same characteristics as the mud formulation product and which, when suitable additives are added, can be re-used in other drillings whereas the solid part (cuttings) can be re-admitted into the …

SUPERCRITICAL FLUID CLEANING OF BANKNOTES AND …
SUPERCRITICAL FLUID CLEANING OF BANKNOTES AND …

The method and apparatus include exposing the stack to a ,supercritical fluid, at a temperature and a pressure and for a duration sufficient to clean each secure instrument and not compromise each security feature and each visual data, and maintaining a securing mechanism on the stack during exposure of the stack to the ,supercritical fluid, such that cleaning each secure instrument …

07 Exam1 Solution | Supercritical Fluid | Petroleum
07 Exam1 Solution | Supercritical Fluid | Petroleum

Supercritial ,Fluid,-Phase SUOQI-A,RENAN-W, Equilibrium and Its molecular-Basis 9608 1996 Mechanism of Deactivation in LIU-YF,PAN-GQ,YANG- Reforming Catalysts at Start of JJ 9609 1996 Run Temperature effect on solid-,supercritical fluid, phase Zhao,soqi;Wang equilibrium and its molecular 9610 1996 renan,Yang guanghua basis Yang tao,Chen Application of the Wong-Sandler guangjin,Yanwei,Guo …

Microwave treatment of oil-contaminated North Sea drill ...
Microwave treatment of oil-contaminated North Sea drill ...

1/4/2006, · Typical North Sea ,cuttings, samples produced using OBM contain around 15% oil, meaning that ,treatment, is required before disposal. Most current treatments are based on-shore, meaning that the contaminated ,cuttings, have to be stored on each production platform before being shipped to shore for ,treatment, or landfill.

Chemical Engineering & Technology
Chemical Engineering & Technology

Kommoß et al. studied the ,CO 2, hydrogenation under ,supercritical, conditions using a Cu/ZnO/Al 2 O 3 catalyst. ,Supercritical, conditions could increase the space-time yield, due to the higher densities of the reaction mixture and a possible in situ phase separation of …

Oil Content - an overview | ScienceDirect Topics
Oil Content - an overview | ScienceDirect Topics

Supercritical carbon dioxide (CO 2), with both liquid and gas properties at its above critical temperature and pressure, is utilized in, microalgae oil extraction, (Demirbaş, 2008). In such a high-yield method, there is, no need, for extra unit operations, and it is completely solvent-free technique.

Contaminated Drill Cuttings and Their Treatment ...
Contaminated Drill Cuttings and Their Treatment ...

Supercritical fluid technology is a favorable method for treatment of oil-contaminated drill cuttings. Supercritical fluids have several desirable properties that make them attractive for certain separation processes, e.g. the product is not contaminated with residual solvent [2-3].

Molecules | Free Full-Text | Recovery of Biomolecules from ...
Molecules | Free Full-Text | Recovery of Biomolecules from ...

The use of supercritical ,fluid, extraction consists in the separation of the extractant from the matrix (which is usually solid, but can also be a liquid) using supercritical fluids as the extracting solvent. Carbon dioxide is the most used supercritical ,fluid,, sometimes modified by co-solvents such as ethanol that change its polarity.

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