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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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Study on Fluid-Rock Interaction and Reuse of Flowback ...
Study on Fluid-Rock Interaction and Reuse of Flowback ...

PDF | Hydraulic ,fracturing, requires a large volume of fresh water, which is difficult and expensive to obtain in the desert area such as Tarim Basin.... | Find, read and cite all the research you ...

A review of crosslinked fracturing fluids prepared with ...
A review of crosslinked fracturing fluids prepared with ...

1/12/2016, · In one test, formulated with the produced water having TDS of about 113,000 mg/L and hardness of about 11,000 mg/L, 40 ppt of guar, the pH stabilizing ,agent,, the delayed boron crosslinker, and other ,fluid, additives, the crosslinked guar ,fluid, could stay above 500 cP (at 40 s −1 shear rate) for at least 1 h at 246 °F as shown in Fig. 2, without generating scale precipitate in the ,fluid,.

Optimizing Water Management in Hydraulic Fracturing for ...
Optimizing Water Management in Hydraulic Fracturing for ...

Some drilling operators elect to re-use a portion of the wastewater to replace and/or supplement fresh water in formulating ,fracturing fluid, for a future well or re-,fracturing, the same well. Re-use of shale oil and gas wastewater is, in part, dependent on the levels of pollutants in the wastewater and the proximity of other ,fracturing, sites that might re-use the wastewater.

Study on the reutilization of clear fracturing flowback ...
Study on the reutilization of clear fracturing flowback ...

19/11/2014, · Qianding Li et al studied the reutilization of hydroxypropyl guar fracturing fluid through adding fresh cross linking agent and thickener into flowback fluids to conduct secondary fracturing process. Surfactant-based chemical-flooding process has been widely studied for its advantage on high oil displacement efficiency, and many studies have been conducted [17] – [20] .

PEH:Hydraulic Fracturing - PetroWiki
PEH:Hydraulic Fracturing - PetroWiki

26/4/2017, · Biocides are ,used, to kill bacteria in the mix water. Buffers are ,used, to control the pH of the fracture ,fluid,. Surfactants are ,used, to lower the surface tension. ,Fluid,-loss additives are ,used, to minimize ,fluid, leakoff into the formation. Stabilizers are ,used, to keep the ,fluid, …

(PDF) An overview of hydraulic fracturing and other ...
(PDF) An overview of hydraulic fracturing and other ...

Status of technique applicationMethanol-based fluids have been used on low permeability reservoirs, but it is not clear if their application has been extended to shales.Methanol as an additive is widely used in hydraulic fracturing, for instance as a corrosion or scale inhibitor, friction reducer, formation water flowback enhancer and fracturing fluid flowback enhancer (Saba, Mohsen et al. 2012).

(PDF) A Review of Fracturing Fluid Systems Used For ...
(PDF) A Review of Fracturing Fluid Systems Used For ...

Chemical breakers, are used to break the polymers at the end of the fracturing process so as to provide highly conductive fractures. Concerns over fracture conductivity damage by viscous fluids in...

Technology advances push greener side of fracing ...
Technology advances push greener side of fracing ...

The CleanStim ,fracturing fluid, is made with ingredients sourced from the food industry, offering an extra margin of safety if there is an incident at the wellsite. The product is not edible, but it does include a complete frac ,fluid, system offering, a gelling ,agent,, crosslinker/ buffer, breakers and a surfactant.

Downhole Transformation of the Hydraulic Fracturing Fluid ...
Downhole Transformation of the Hydraulic Fracturing Fluid ...

Hydraulic ,fracturing fluid, (HFF) additives are ,used, to enhance oil and gas extraction from unconventional shale formations. Several kilometers downhole, these organic chemicals are exposed to temperatures up to 200 °C, pressures above 10 MPa, high salinities, and a pH range from 5–8.

Technology advances push greener side of fracing ...
Technology advances push greener side of fracing ...

The CleanStim fracturing fluid is made with ingredients sourced from the food industry, offering an extra margin of safety if there is an incident at the wellsite. The product is not edible, but it does include a complete frac fluid system offering, a gelling agent, crosslinker/ buffer, breakers and a surfactant.

Cuadrilla wants to use more chemicals to improve fracking ...
Cuadrilla wants to use more chemicals to improve fracking ...

20/2/2019, · Hydrochloric acid Cuadrilla said this would help reduce ,fracturing, pressure. It would dissolve drilling mud remaining in the wellbore and “facilitate entry of the ,fracturing fluid, from openings in the production tubing to the body of shale”. The company said the acid would be ,used, …

Study on the Mechanism of Nanoemulsion Removal of Water ...
Study on the Mechanism of Nanoemulsion Removal of Water ...

The nanoemulsion has a smaller molecular size and is used in combination with the fracturing fluid. After entering the formation, it can reduce the surface tension of gas/water, change the wettability of the rock surface, and improve the flowback rate of the fracturing fluid.

Can Produced Or Flowback Water Be Reused As Fracturing Fluid?
Can Produced Or Flowback Water Be Reused As Fracturing Fluid?

The WaterSure Standard fluid system is a water, crosslinking, system unaffected by high TDS, boron or chlorides using a conventional base guar gel with specialized crosslinker. It has three major components: a, crosslinking, function, a pH buffer and a basic, gelling agent, combined with a high TDS-tolerant surfactant and scale inhibitor.

Hydraulic fracturing - History Technology Chemicals Used ...
Hydraulic fracturing - History Technology Chemicals Used ...

As the fracturing process proceeds, viscosity reducing agents such as oxidizers and enzyme breakers are sometimes then added to the fracturing fluid to deactivate the gelling agents and encourage flowback.[35]

14 Objective To study the efficiency of gelled HD 5 ...
14 Objective To study the efficiency of gelled HD 5 ...

1.4 Objective To study the efficiency of gelled HD-5 Propane as ,fracturing fluid, for optimum cleanup in order to maximize effective fracture length Objective To study the efficiency of gelled HD-5 Propane as ,fracturing fluid, for optimum cleanup in order to maximize effective fracture length

Enzyme Surfactant Fluids Used in Non-Gel Hydraulic ...
Enzyme Surfactant Fluids Used in Non-Gel Hydraulic ...

The present application describes improved total recovery of oil, condensate and associated gas in a subterranean formation such that said hydrocarbons are released by a hydraulic ,fracturing, process with a non-,gel, hydraulic ,fracturing fluid, that comprises an enzyme surfactant ,fluid, with at least one anionic surfactant thereby forming a non-,gel, hydraulic ,fracturing fluid, enzyme surfactant ...

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