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Tantalum niobium 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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Tantalum niobium acid wastewater
Reasons for the low flowback rates of fracturing fluids in ...
Reasons for the low flowback rates of fracturing fluids in ...

Based on the experimental and field data, ,fracturing fluid flowback, rates and gas production rates of 9 wells were analyzed. It is indicated that the same block follows an overall trend, namely, the lower the ,flowback, rates, the more developed the micro fractures, the better the ,volume, stimulation effect and the higher the gas production rates.

Study of Influences of Fracture Additives on Stability of ...
Study of Influences of Fracture Additives on Stability of ...

The concentrations of crosslinkers in ,fracturing fluid, are relatively low and range from 0.5 to 250 mg L-1 . Friction reducers are added to allow ,fracturing, fluids and sand, or other solid materials called proppants, to be pumped to the target zone at a higher rate and reduced pressure than if water alone was used.

Study of Influences of Fracture Additives on Stability of ...
Study of Influences of Fracture Additives on Stability of ...

The concentrations of crosslinkers in ,fracturing fluid, are relatively low and range from 0.5 to 250 mg L-1 . Friction reducers are added to allow ,fracturing, fluids and sand, or other solid materials called proppants, to be pumped to the target zone at a higher rate and reduced pressure than if …

1. Introduction - Hindawi
1. Introduction - Hindawi

The volumes of the fracturing fluid without proppant and the proppant-laden fluid can be simplified as two fluid columns in the plot while the volume ratio of the two fluids is related to the ratio of the pillar diameter and spacing by the following equation: (7) D / L = d / x.

Bo Huang's research works | Sinopec Engineering Beijing ...
Bo Huang's research works | Sinopec Engineering Beijing ...

Bo Huang's 8 research works with 81 citations and 1,399 reads, including: Study on Effects of Low Viscosity ,Fluid, Pre-injection on Hydraulic Fracture Complexity in Tight Heterogeneous Glutenite ...

Water use for shale gas development in China’s Fuling ...
Water use for shale gas development in China’s Fuling ...

20/5/2020, · On March 26, 2018,, Sinopec, officially announced that the Fuling field had an annual production capacity of 10 bcm of shale gas. Based on the data collected from, Sinopec,, we conduct single-well water use evaluation at each stage with a focus on 19 test wells, which has a complete set of detailed water use data.

Fracture Characterization Using Flowback Water Transients ...
Fracture Characterization Using Flowback Water Transients ...

In the process of ,fracturing fluid flowback,, water flows into the horizontal wellbore from F under the hydraulic pressure difference. Hydraulic, osmotic, and capillary forces induce water flow between f and m, while only osmotic pressure is not considered in the flow of water between F and f.

Diverting Acid Fracturing for Carbonate Reservoirs
Diverting Acid Fracturing for Carbonate Reservoirs

After stimulation: 8mm nozzle with daily gas output of 780,000 cubic meters and flow pressure at 87.7MPa; 10mm nozzle with daily gas output of 1,167,000 cubic meters and flow pressure at 78.6MPa. Diverting Acid ,Fracturing, for Carbonate Reservoirs.

Investigation of a critical choke during hydraulic ...
Investigation of a critical choke during hydraulic ...

18/10/2019, · During the course of fracturing fluid flowback, the fracturing fluid loss volume, V l, will change with bottom hole pressure P f. When the time is t n, the bottom hole pressure P f from t 1 to t n−1 is calculated. Therefore, V l n is the function of P n f.

Hydraulic fracturing - Wikipedia
Hydraulic fracturing - Wikipedia

Chemical additives are typically 0.5% of the total fluid volume., Fracturing, equipment operates over a range of pressures and injection rates, and can reach up to 100 megapascals (15,000 psi) and 265 litres per second (9.4 cu ft/s) (100 barrels per minute). Well types

Salty Flowback Research May Explain Fluid Movement in Shale
Salty Flowback Research May Explain Fluid Movement in Shale

The University of Alberta (UA) researchers are using core samples from different Canadian shales to model the increased fracture area based on the dissolved salt content in the ,flowback fluid,. So far, they have established three types of salt that may explain how it moves: loosely attached, moderately attached, and strongly attached.

Reduced adsorption of polyacrylamide‐based fracturing ...
Reduced adsorption of polyacrylamide‐based fracturing ...

It leads to a large ,volume, of PAM remaining in the shale reservoirs after hydraulic ,fracturing,. Classically, only 5%‐55% of slick‐water is subsequently recovered as flow‐back. 20-22 The slick‐water adsorbed in the fractures or rock matrix seriously limits the production rate of oil/gas (Figure 1).

Geochemical Characteristics of Gas and Flowback Water in ...
Geochemical Characteristics of Gas and Flowback Water in ...

Fracturing fluid, samples used in the hydraulic ,fracturing, of the Karamay Formation and ,flowback fluid, from day 1–66 after hydraulic ,fracturing, were collected and analyzed for comparison. A comparison of the results from the ,flowback fluid,, the ,fracturing fluid,, and the evolution trend of the ,flowback fluid, over the production time, revealed several different sources of elements in the ,flowback fluid,.

Hydraulic fracturing (‘fraccing’) techniques including ...
Hydraulic fracturing (‘fraccing’) techniques including ...

Best practice requires that a larger ,volume, of water (,flowback, water) is recovered from a well after hydraulic ,fracturing, is completed, relative to the ,volume, of injected ,fluid,. Issues and impacts Hydraulic ,fracturing, has attracted a large amount of community concern, especially in relation to potential risks to human health and the environment from the chemicals used.

Geochemical Characteristics of Gas and Flowback Water in ...
Geochemical Characteristics of Gas and Flowback Water in ...

Fracturing fluid, samples used in the hydraulic ,fracturing, of the Karamay Formation and ,flowback fluid, from day 1–66 after hydraulic ,fracturing, were collected and analyzed for comparison. A comparison of the results from the ,flowback fluid,, the ,fracturing fluid,, and the evolution trend of the ,flowback fluid, over the production time, revealed several different sources of elements in the ,flowback fluid,.

Sensitivity Analysis and Optimization of Technological ...
Sensitivity Analysis and Optimization of Technological ...

According to hydraulic ,fracturing, theory, a determined amount of ,fracturing fluid, injected means a definite fracture half-length if other conditions are fixed. Taking the corresponding relationship of fracture length and CO 2 injection ,volume, into account, we chose the fracture half-length as a research target in the optimization of parameters.

Evaluation of shale gas well fracturing performance based ...
Evaluation of shale gas well fracturing performance based ...

Results show that the ,flowback, data collected in the blowout stage cannot be neglected, otherwise the effective fracture ,volume, is relatively smaller. The proposed method provides the technical support for the evaluation of ,fracturing, performance of shale gas wells with the use of ,flowback, data.

Stimulation Project - STARSE Energy and Technology(Group ...
Stimulation Project - STARSE Energy and Technology(Group ...

The maximum pressure of the wellhead in the ,fracturing, operation is 110MPa (50MPa on the bridge plug), the highest single-stage ,fracturing fluid volume, is 2818.8m 3, the total well accumulates the well ,fluid, amount of 50000m 3, and the bridge plug can still ensure the seal

Novel Nanocomposite Fiber-Laden Viscoelastic Fracturing ...
Novel Nanocomposite Fiber-Laden Viscoelastic Fracturing ...

Viscoelastic surfactant (VES) ,fracturing fluid, has become a preferred option because of its easy ,flowback, and the resultant minimal damage. A novel nanocomposite fiber with substantially improved functional and structural properties was synthesized by introducing nanoparticles into …

Reasons for the low flowback rates of fracturing fluids in ...
Reasons for the low flowback rates of fracturing fluids in ...

Based on the experimental and field data, ,fracturing fluid flowback, rates and gas production rates of 9 wells were analyzed. It is indicated that the same block follows an overall trend, namely, the lower the ,flowback, rates, the more developed the micro fractures, the better the ,volume, stimulation effect and the higher the gas production rates.

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