Previously investigated barium sulfate scale formation and inhibition as a function of temperature, ranging from 95°C to 23°C was found that, for a given brine, barium sulfate scaling tendency increases significantly as temperature decreases, and scale inhibitor effectiveness (expressed as %BaSO 4 Inhibition) reduces correspondingly.

Inhibition of Barium Sulfate Precipitation During Water Injection into Oil Reservoirs Using Various Scale Inhibitors. In this work, barium sulfate precipitation was analyzed under ambient and reservoir conditions. The worst scenario for barium sulfate precipitation occurred at a mixing ratio of 40:60 formation and….

ABSTRACT. Over recent years, there has been an increasing requirement in oilfield scale prevention to replace conventional mineral scale inhibitors (SI) with more environmentally friendly green species (GSI). This paper presents the experimental results from static barium sulfate inhibition efficiency tests for three conventional SIs and 11 …

Abstract In this study, the scale inhibitor PEPB (mixture of polyepoxysuccinic acid (PESA) and 2-phosphonobutane-1, 2, 4-tricarboxylic acid (PBTCA)) was selected to investigate the squeeze performance to solve the barium sulfate scaling problem in South China Sea Oilfield. The squeeze performance of scale inhibitor PEPB was evaluated …

We obtained anhydrous barium sulfate (BaSO 4) from Sigma-Aldrich, with a purity of 98%.Fisher Scientific supplied the converting agent, anhydrous K 2 CO 3, with a purity above 99%.The powder form of K4-EDTA (C 10 H 12 K 4 N 2 O 8) was supplied by Dayang Co. Ltd., while the liquid form of K4-EDTA was provided by Xinjiang …

Ability of Scale Inhibitors to Prevent the Precipitation of Barium Sulfate or Strontium Sulfate, or Both, from Solution (for Oil and Gas Production Systems) This NACE International standard represents a consensus of those individual mem­ bers who have reviewed this document, its scope, and provisions. Its acceptance

In this study, the scale inhibitor PEPB (mixture of polyepoxysuccinic acid (PESA) and 2-phosphonobutane-1, 2, 4-tricarboxylic acid (PBTCA)) was selected to investigate the squeeze performance to solve the barium sulfate scaling problem in South China Sea Oilfield. The squeeze performance of scale inhibitor PEPB was evaluated …

Barium Sulfate Scale Remover, ME-DPTA are high weight/volume dissolvers of barium and calcium compounds in their scale state whereas ME-DPTA dissolvers are more suitable for dissolving barium, strontium …

Download Citation | Investigation of barium sulfate scale inhibitor to improve the squeeze performance in South China Sea Oilfield | In this study, the scale inhibitor PEPB (mixture of ...

The doctor or medical service provider specifies a procedure requiring the drinking consumption of a barium sulfate solution up to 24 hours prior and just before the CT scan; yep, you'll usually need to drink it the day before the test and just prior to the test. In other words, they do have you drink several doses before the actual CT.

This paper presents the experimental results from static barium sulfate inhibition efficiency tests for three conventional SIs and 11 GSIs. The conventional SIs …

Article on Scale Inhibitor Consumption in Long-Term Static Barium Sulphate Inhibition Efficiency Tests, published in on by K. S. Sorbie+1. Read the article Scale Inhibitor Consumption in Long-Term Static Barium Sulphate Inhibition Efficiency Tests on R Discovery, your go-to avenue for effective literature search.

These scales, usually containing barium or strontium can be prevented from forming by proper use of inhibitors. Fortunately, most scales occurring in producing formation are calcium sulfate or calcium carbonate. These deposits normally can be removed chemically before further treatment to prevent recurring scale deposits is begun.

A semiempirical mathematical model has been developed to predict inhibitor efficiency for barium sulfate scale control in industrial processes. This model can be used for selecting effective inhibitors and determining the minimal effective concentration …

In this work, scaling tendency and amount of precipitation of barium sulfate (BaSO4) were determined; the process is depending on temperature, pressure and mixing ratio of injection and formation of waters. Results showed that BaSO4 precipitation is largely dependent on mixing ratio. Temperature and pressure had no influence on BaSO4 precipitation. …

Chemistry questions and answers. Aluminum sulfate reacts with barium chloride to form the insoluble compound, barium sulfate. The reaction proceeds according to the balanced equation below: 1 Al2 (SO4)2 (aq) + 3 BaCl2 (aq) → 2 AlCl3 (aq) + 3 BaSO4 (s) Marie reacts 115 g of aluminum sulfate with 225 g of barium chloride in order to produce ...

Semantic Scholar extracted view of "Maleic acid based scale inhibitors for calcium sulfate scale inhibition in high temperature application" by B. Senthilmurugan et al. Skip to ... oilfield was synthesized by solution polymerization. The static inhibition rate on calcium carbonate, calcium sulfate, barium sulfate, and strontium … Expand. 36.

ABSTRACT. The precipitation of barium sulfate from aqueous solutions at 35°C has been studied by a spontaneous precipitation technique. A variety of polymeric and non …

Inhibition of Barium Sulfate Precipitation During Water Injection into Oil Reservoirs Using Various Scale Inhibitors. In this work, barium sulfate precipitation …

Scale inhibitors reduce the propensity of water to for prediction and inhibition of barium sulfate are form salt deposits during the process of crystal presented in Table 1. formation. Moreover, the scale inhibitors prevent the precipitation of …

Calcium sulfate scale inhibition studies. ... strontium sulfate or barium sulfate scale formation is polyphosphate, although investigations have shown that many chemicals can affect the rate of crystallization of calcium sulfate. Reitz [24] developed a broad spectrum antiscalant for RO desalination plants. The additive (FLOCON 100) was …

CAS #: EC Number: 231-784-4 Molar Mass: 233.39 g/mol Chemical Formula: BaSO₄ Hill Formula: BaO₄S Grade: Ph Eur,BP,USP. View Products on Sigmaaldrich.

This study was conducted to investigate the permeability reduction caused by deposition of barium sulfate in Malaysian sandstone and Berea cores from mixing of …

Scale inhibitors are widely used to prevent mineral scale deposition and precipitation in industrial processes. In this study, the performance of scale inhibitors is systematically investigated in a flow loop apparatus, designed to mimic the barite deposition in pipelines. The inhibitors are tested in tubing with and without a precovered barite scale layer. …

BARIUM SULFONATE. BARIUM SULFONATE is premium rust inhibitor for industrial lubricants, greases, rust preventive fluids, and metalworking specialties. BARIUM SULFONATE has excellent water resistance properties. BARIUM SULFONATE is Non-staining to metal surfaces. It is widely used in gear oils and greases. Barium sulfonate.

If the patient may be allergic or dehydrated. Other complications of barium enema include. insertion and inflation of the enema balloon, allergic reaction to latex. Contraindications of buscopan. myasthenia gravis, megacolon, narrow angle glaucoma, tachycardia, prostatic enlargement with urinary retention, mechanical stenoses in the GI tract or ...

The Mechanism of Barium Sulfate Deposition Inhibition and the Prediction of Inhibitor Dosage | Lu, Alex Yi-Tsung; Shi, Wei; Wang, Jianxin; Venkatesan, Ramachandran ...

Scale inhibitors (SI) have been applied very successfully over many years in oilfields to prevent the formation of mineral scale. Both barium sulphate and calcium carbonate scales may be prevented ...

The barium-sulfate scale inhibitor to be used in the method of inhibiting a barium-sulfate scale of the present invention is a barium-sulfate scale inhibitor containing a sulfonic acid group-containing copolymer obtained by polymerizing a monomer composition containing a carboxyl group-containing monomer and a sulfonic acid group-containing ...

Article on The Effects of Barium Sulfate Saturation Ratio, Calcium, and Magnesium on the Inhibition Efficiency—Part II: Polymeric Scale Inhibitors, published in SPE Production & Operations 27 on by L.S.. S. Boak+2. Read the article The Effects of Barium Sulfate Saturation Ratio, Calcium, and Magnesium on the …