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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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gas testing waste water emission treatment systems
Mechanisms and capacity of high-pressure soaking after ...
Mechanisms and capacity of high-pressure soaking after ...

9/11/2020, · About 20% of the fracturing fluid flows back after adequate soaking in water-wet rocks. For water-wet or mixed-wet rocks, the flowback rate after soaking is less than that without soaking. The contribution of imbibition increases as the increase in BHP, IFT, and specific surface area.

China | SPE
China | SPE

Abstract Water imbibition is a key factor affecting the ,flowback, system of shale gas wells after volume ,fracturing,. This paper took shale samples from the Longmaxi formation (LF) in the Sichuan Basin as subjects, the experiments of shale water imbibition under different influencing factors were carried out.

Pilot study of oilfield wastewater treatment by micro ...
Pilot study of oilfield wastewater treatment by micro ...

Furthermore, the micro-flocculation filtration process is applicable to the treatment of oilfield water containing the wellhead measures' fluids (the slushing fluids, workover fluids, ,fracturing flowback fluid,, etc.), which are harmful for the growth of activated sludge.

Production performance analysis of fractured horizontal ...
Production performance analysis of fractured horizontal ...

Network ,fracturing, technique is an important method to improve the production for tight oil reservoirs. ,Fracturing, network parameters (ω and λ) are the indexes of ,fracturing, stimulation effectiveness. Storativity (ω) is defined as the ratio of elastic storage ability of fracture system to the total storage ability of the pay zone.

Optimization design of controlling proppant flowback ...
Optimization design of controlling proppant flowback ...

Resin-coated proppant has been used to control proppant production during ,fracturing fluid flowback, and production.The mechanism of resin-coated proppant to control proppant ,flowback, is that resin can cement proppant to form manual borehole wall which can prevent proppant grains or sand grains entering wellbore.This paper developed a optimization design model.The model is based on …

1. Introduction - Hindawi
1. Introduction - Hindawi

The ,flowback, rate become stable at 15 MPa in S20-4, which is about 85.31%. Sample M72-3 and S123-1 have low ,flowback, rate, because both have low permeability. The ,flowback, rate is 21.66% and 22.42% at 10 MPa, respectively. However, sample S133-4 has relatively high ,flowback, rate, even though it has similar permeability as M72-3 and S123-1.

(PDF) Impact of fracturing liquid absorption on the ...
(PDF) Impact of fracturing liquid absorption on the ...

The water used for hydraulic ,fracturing, is typically fresh, whereas ",flowback," water is typically saline with a variety of additives which complicate safe disposal.

Effects of Microstructure and Rock Mineralogy on Movable ...
Effects of Microstructure and Rock Mineralogy on Movable ...

Abstract. A large amount of injected ,fracturing fluid, is retained in tight reservoirs, leading to low ,flowback, efficiency (less than 30%). It may be related to low ,fluid, movability in tight reservoirs, which is influenced by the complex pore structure and mineral composition.

Mechanisms and capacity of high-pressure soaking after ...
Mechanisms and capacity of high-pressure soaking after ...

9/11/2020, · About 20% of the ,fracturing fluid, flows back after adequate soaking in water-wet rocks. For water-wet or mixed-wet rocks, the ,flowback, rate after soaking is less than that without soaking. The contribution of imbibition increases as the increase in BHP, IFT, and specific surface area.

Pilot study of oilfield wastewater treatment by micro ...
Pilot study of oilfield wastewater treatment by micro ...

Furthermore, the micro-flocculation filtration process is applicable to the treatment of oilfield water containing the wellhead measures' fluids (the slushing fluids, workover fluids, ,fracturing flowback fluid,, etc.), which are harmful for the growth of activated sludge.

Production performance analysis of fractured horizontal ...
Production performance analysis of fractured horizontal ...

Network ,fracturing, technique is an important method to improve the production for tight oil reservoirs. ,Fracturing, network parameters (ω and λ) are the indexes of ,fracturing, stimulation effectiveness. Storativity (ω) is defined as the ratio of elastic storage ability of fracture system to the total storage ability of the pay zone.

Study on the Law of Membrane Efficiency of Unsaturated ...
Study on the Law of Membrane Efficiency of Unsaturated ...

The dynamic force of shale reservoir imbibition working ,fluid, mainly includes two aspects: (1) the development of micronanopores with strong capillary force and (2) strong mechanical-chemical coupling and interaction between working ,fluid, and shale reservoirs due to high clay mineral content [ 3.

Demulsification Experiment Evaluation of Emulsion of Crude ...
Demulsification Experiment Evaluation of Emulsion of Crude ...

Demulsification Experiment Evaluation of Emulsion of Crude Oil and Different Spent Acids: YI Xiangyi 1,2, ZHANG Ziwei 1, XIA Tao 3, DAI Yating 1, WU Yuanqin 1: 1. College of Energy Resource, Chengdu University of Technology, Chengdu 610059, China;

Mechanism of Ultra-Low Water Recovery Rate with High ...
Mechanism of Ultra-Low Water Recovery Rate with High ...

The pore-fracture system and imbibition characteristics are the key mechanisms. we divided pore-fracture system in Fuling into four levels, among which highly developed bedding fractures and micro-fractures in Fuling play vital role in the enhancement of imbibition capacity of the formation and help keep high conductivity of the fracture system before and after ,fracturing fluid, recovery.

Genetic Analysis and Countermeasures for Foreign Body of ...
Genetic Analysis and Countermeasures for Foreign Body of ...

In view of returned gel and ,flowback, of foreign body of ,fracturing, in the reservoir of Fengcheng Formation in Wuxia Fault Belt of Junggar Basin in Xinjiang Oilfield,the genesis was analyzed.It was found out in the study that the unidentified object was the mixture of guar gum and inorganic salt,,flowback fluid, was strong alkaline,and rich in mineral ion from the formation.The reason was that ...

Publications - University Blog Service
Publications - University Blog Service

A Semianalytical Approach to Model Two-Phase ,Flowback, of Shale-Gas Wells with Complex ... (2017, July 24-26). Hydraulic ,Fracturing Fluid, Effect on Clay Swelling in Stimulated ... R., & Zhao, L. (1998, April 19-22). Alkaline/Surfactant/Polymer Flood Predictions for the ,Karamay, Oil Field. SPE-39610-MS presented at the SPE/DOE ...

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