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Different treatment methods of harmful substances in acid wastewater

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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Different treatment methods of harmful substances in acid wastewater
High temperature hydraulic fracturing fluid - Schlumberger ...
High temperature hydraulic fracturing fluid - Schlumberger ...

A fluid that is useful in stimulation operations, and in particular, in hydraulic fracturing treatments, comprises a carrier fluid; a solvatable, crosslinkable polymer; a cross-linking agent that does not cause substantial cross-linking of the polymer at temperatures less than about 105° F. and a pH of about 10 or greater; and an organic amine stabilizing agent that has a first pK a or a pH in water of at least about 9.5.

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

ABSTRACT: Hydraulic fracturing fluid (HFF) additives are used to enhance oil and gas extraction from unconventional shale formations. Several kilometers downhole, these organic chem-icals are exposed to temperatures up to 200 °C, pressures above 10 MPa, high salinities, and a …

Enhancing High-Temperature Drilling Capabilities ...
Enhancing High-Temperature Drilling Capabilities ...

The high-temperature, water-based drilling fluid maintained stable rheological properties for five days at 365 F. A 1% lubricant addition reduced the coefficient of friction of the fluid from 0.21 to 0.143 before aging and to 0.128 after five days rolling at 365 F. The fluid had a coefficient of friction that was similar to SBM, which is 0.125.

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

from 1200 to 2600 m in the subsurface,17typically falls within a temperature range of 40−100 °C but can reach temperatures of 100−125 °C in the southwestern region18with downhole pressures typically ranging from 27500 to 41400 kPa (4000−

Hydraulic fracturing additives - Aubin
Hydraulic fracturing additives - Aubin

Hydraulic ,fracturing, involves pumping ,fluid, downhole at ,high, pressures to create fractures in the formation rock. First a “pad” is pumped downhole to initiate the fracture and stabilise well conditions to suit the upcoming fracture ,fluid,. Following the pad, the ,fracturing fluid, is pumped downhole with a …

High temperature fracturing fluids and method of use ...
High temperature fracturing fluids and method of use ...

Accordingly, improvements are needed in those polymer fluids used and methods of using such fluids in ,high temperature, applications, such as ,high temperature fracturing, operations. SUMMARY A treatment ,fluid, for treating a subterranean formation is formed from an aqueous solution of a polysaccharide, a polyacrylamide, a crosslinking agent and less than 0.1% by weight of any clay …

DISTILLATION FOR HYDRAULIC FRACTURING FLOWBACK TREATMENT
DISTILLATION FOR HYDRAULIC FRACTURING FLOWBACK TREATMENT

For instance, ,flowback, water from gas sites can produce at rates of more than 300 m 3, more than 79,250 gpd. Developments include mechanical vapor recompression schemes to concentrate ,flowback, water, which can be less expensive than traditional distillation because the ,high,-,temperature, compressed vapor preheats the influent.

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

Flowback Fluid. The target reservoir locates in the piedmont region of Tarim Basin, which is characteristic of desert environment, great reservoir depth (over 3000 m), and high reservoir temperature (approximately 140°C) [ 38 – 40 ]. To hydraulically fracture this reservoir, cross-linked guar was used as the fracturing fluid.

Fracturing Fluid Components - IntechOpen
Fracturing Fluid Components - IntechOpen

Fracturing Fluid Components, Carl Montgomery ... The use of post frac ,flowback, water is becoming ... this insoluble residue, improve the ,high temperature, stability and improve the crosslinking performance in low pH fluids such as CO2 the molecular structure of guar is chemically

High temperature fracturing fluids and method of use ...
High temperature fracturing fluids and method of use ...

Accordingly, improvements are needed in those polymer fluids used and methods of using such fluids in ,high temperature, applications, such as ,high temperature fracturing, operations. SUMMARY A treatment ,fluid, for treating a subterranean formation is formed from an aqueous solution of a polysaccharide, a polyacrylamide, a crosslinking agent and less than 0.1% by weight of any clay component.

Research and Application of an Environmental-Friendly Low ...
Research and Application of an Environmental-Friendly Low ...

Refer to China’s oil and gas industry standard SY/T5107-2005 “Water-based ,fracturing fluid, performance evaluation method”, select the instrument JHJZ-I ,high temperature, and ,high, pressure dynamic drag reduction evaluation system drag reduction rate tester to test the drag reduction rate in 3% chlorination The reduction rate of 0.1% CQFR slick water ,fracturing fluid, was tested in sodium + 2% calcium …

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

Load recovery can be as low as 10%, or as ,high, as 60%. HF ,flowback fluid, contains a combination of produced water, HF fluids, hydrocarbon liquids, and dissolved minerals from contact of the injected fluids with the reservoir rock, proppant, and solids from the reservoir, and …

Unconventional Fracturing Fluids: What Where and Why
Unconventional Fracturing Fluids: What Where and Why

• ,Flowback fluid, can be reused • Compatible with N2 and CO2 ... • ,High Temperature, Surfactant Gels • A i ti P l S tAssociative Polymer Systems • Produced Water Based Frac Fluids ... ,fracturing, or workover operations is ,fluid, retention effects.

Chemical Degradation of Polyacrylamide during Hydraulic ...
Chemical Degradation of Polyacrylamide during Hydraulic ...

The objective of this study was to evaluate the chemical degradation of ,high, molecular weight PAM, including the effects of shale, oxygen, ,temperature,, pressure, and salinity. Data were obtained with a slickwater ,fracturing fluid, exposed to both a shale sample collected from a Marcellus outcrop and to Marcellus core samples at ,high, pressures/temperatures (HPT) simulating downhole conditions.

High temperature hydraulic fracturing fluid - Schlumberger ...
High temperature hydraulic fracturing fluid - Schlumberger ...

A fluid that is useful in stimulation operations, and in particular, in hydraulic fracturing treatments, comprises a carrier fluid; a solvatable, crosslinkable polymer; a cross-linking agent that does not cause substantial cross-linking of the polymer at temperatures less than about 105° F. and a pH of about 10 or greater; and an organic amine stabilizing agent that has a first pK a or a pH in water of at least about 9.5.

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