barium sulfate depositing


The efficiency of a DTPA-based solvent in the dissolution ...

@article{osti_113584, title = {The efficiency of a DTPA-based solvent in the dissolution of barium sulfate scale deposits}, author = {Putnis, A and Putnis, C V and Paul, J M}, abstractNote = {This paper describes kinetic experiments to determine the rate at which Ba ions are mobilized from crystalline barium sulfate into aqueous solution by a solvent in which the active … Experience has shown though that rarely does any barium sulfate deposit with the destructively distilled residue on the cover. Even if you have a speck of black material, it is good to continue heating for a while to get rid of it if it is carbonaceous material as shown here in the photos at the left and the right.

Barium – Nevada Mining Association

Barite is a mineral composed of barium sulfate (BaSO4). It receives its name from the Greek word "barys" which means "heavy." This name is in response to barite's high specific gravity of 4.5, which is exceptional for a nonmetallic mineral. The high specific gravity of barite makes it suitable for a wide range of industrial, medical, and ... Barite scale is the most common oilfield scale in oil and gas wells. Barite scale removal still represents a challenge to the oil and gas industry because of its low solubility in mineral acids such as HCl. Chelating agents such as diethylene triamine pent acetic acid (DTPA), ethylene diamine tetra acetic acid (EDTA), and hydroxy ethyl ethylene tri acetic acid were introduced as barite scale ...

Scale Deposits - Halliburton

Scale Deposits For example, some minerals may appear soluble downhole, but as they are brought to the surface, they can begin to produce scale, such as calcium carbonite, calcium sulfate and barium sulfate, potentially increasing your operating expenses, decreasing or stopping the flow of fluids and causing premature equipment failure and fouling. (B) Clearance of retained barium after 90-day multiple inhalation exposures to 50 mg/m 3 barium sulfate nanoparticles. The retained barium at 90 days was 1.6 mg/lung (1.24 mg/g lung).

Barite: World - USGS

a wider knowledge of barite deposits for readers seeking informa­ tion about them for scientific and commercial purposes. USES Barite (BaS04 ) has long been mined for use directly as the natural sulfate or as a source for various barium compounds and barium … Barium Sulfate and Zinc Sulfide Deposits Resulting from Golf-Ball Injury to the Conjunctiva and Eyelid Frank B. Johnson, M.D. Armed Forces Institute of Pathology and the Veterans Administration Central Laboratory for Anatomic Pathology and …

BARIUM FACT SHEET - Water Quality Association

WQA Technical Fact Sheet: Barium Barium is a divalent cation and alkaline earth metal that can be found in naturally occurring mineral deposits. The most common ores are found in Alaska, Arkansas, California, Georgia, Kentucky, Montana, Nevada, and Tennessee. In 2010, 670 thousand tons of barite, a natural barium sulfate ore, Barium sulfate deposits occur when the barium divalent cation is released from wood, especially in the case of unbleached kraft. The release occurs especially when the pulp first encounters acidic papermaking conditions, converting the insoluble barium hydroxide in the wood to soluble barium ions.

Barium Sulfate Scale Formation in Oil Reservoir During ...

This study presents the results of laboratory experiments carried out to investigate the formation of barium sulfate in sandstone cores from mixing injected sea water and formation water contain high concentration of barium at various temperatures (50 and 80°C) and differential pressures (100, 150 and 200 psig). The onset of water production coinciding with simultaneous reduction in oil production is a sign of potential scale problems. It is quite possible, particularly with gas wells, to produce water below the limit of detection of surface analysis (nominally 1 or 2%). This water will evaporate and leave its dissolved solids behind, as scale. Because ...

Scale Inhibitors — Baze Chemical

However, the brines become destabilized when they enter the wellbore, leading to the formation of mineral deposits, or scale. The most common scales found in crude oil include calcium carbonate, calcium sulfate and barium sulfate. The scale will deposit inside equipment and tubulars, and may result in plugging problems that can derail the ... The size and turnover rate of the marine sulfate reservoir is fundamentally linked to the global biogeochemical cycles of oxygen, nutrients, and carbon 1.Since barite (barium sulfate, BaSO 4) can ...

Basolv, Barium Sulfate Dissolver Barite or Baryte Remover ...

Barium Sulfate deposits have long plagued oil field and gas production operations. The deposition of barium sulfate scale on tubes and vessels can result in plant shutdown, production losses, equipment replacement, and cleaning costs. Barium sulfate scales once formed on the equipment surfaces are extremely difficult to remove. Atropos48 said: ren,this article should help explain the barium.It doesn`t harden like cement,but it does thicken up.My suggestion is to ge back to the doctor and request an x-ray,which will show the barium path.It could also be that the barium has been drained out.

SID 7849114 - PubChem

Substance record SID 7849114 for 7727-43-7 submitted by KEGG. COVID-19 is an emerging, rapidly evolving situation. Get the latest public health information from CDC: https:// . Barium chloride 10361-37-2 BaCl 2 Barium oxide 1304-28-5 BaO Barium hydroxide 17194-00-2 Ba(OH) 2 Barium sulfate 7727-43-7 BaSO 4 Barium acetate 543-80-6 Ba(C 2 H 3 O 2) 2 Barium carbonate 513-77-9 BaCO 3 1.2 Physicochemical properties Physicochemical properties of select barium compounds are provided in Table 2. Table 2.

Barium - Wikipedia

Barium is a chemical element with the symbol Ba and atomic number 56. It is the fifth element in group 2 and is a soft, silvery alkaline earth metal.Because of its high chemical reactivity, barium is never found in nature as a free element.Its hydroxide, known in pre-modern times as baryta, does not occur as a mineral, but can be prepared by heating barium carbonate. Dissolution of barium sulfate particles in a stirred system may be described by a surface-controlled, first-order kinetic reaction. SFM (Scanning Force Microscopy) investigations reveal that these dissolvers create similarly shaped trapezoidal pits as they remove barium from the surface of the scale by a layer-by-layer process.

Fighting Scale—Removal and Prevention

bility of barium sulfate increases by a factor of two in the temperature range 25°C to 100°C [77° to 212°F] and then decreases by the same magnitude as temperatures approach 200°C [392°F]. This trend is itself influenced by the background brine salinity. An additional complexity is the solubility of carbonate minerals in the presence of ... Barite is a non-metallic mineral product with barium sulfate (BaSO4) as the main component, pure barite was white, shiny, also often has gray, light red, light yellow and other color due to impurities and other mixture, good crystallization barite appears as transparent crystals.

Barium Sulphate & Barium Sulphate Nanoparticles ...

Blanc-fixe, a synthetic from of barium sulfate, is added for easy glazing of glossy papers and photographic papers (barite papers). Burning of such papers leaves whitish barium sulfate deposits. In the textile industry, barium sulfate is found as a finish for linen goods and an agent for rayon matting during etching and printing. Barite, also called barytes or heavy spar, the most common barium mineral, barium sulfate (BaSO 4).Barite occurs in hydrothermal ore veins (particularly those containing lead and silver), in sedimentary rocks such as limestone, in clay deposits formed by the weathering of limestone, in marine deposits, and in cavities in igneous rock.It commonly forms as large tabular crystals, …

Barite Resources of the United States - USGS

The minerals barite (BaSO4, barium sulfate) and witherite (BaCO3, barium carbonate) are the common sources of barium and its compounds needed for many industrial processes and products. Barite, the principal ore mineral, is found the world over and is abundant and … Jun 01, 2012· Introduction. Calcium hydroxide (CaOH 2) is a well known root canal medicament [] and is often used prior to the placement of a permanent root canal filling as a temporary dressing [].Non-setting CaOH 2 paste in pressure syringe system is commonly used in root canal therapy [].Although it has been considered as a safe agent [], a few reports dealt with the negative side effects of CaOH 2 ...

Barium Sulfate Remover Manufacturers Suppliers.

Barium sulfate scales once formed on the equipment surfaces are extremely difficult to remove. Basol is a Barium Sulfate Remover that removes Barium Sulfate deposits in down-hole oil and gas well equipment. Basol can minimize time-consuming pulling operations and physical de-scaling. Jan 21, 2015· Barium is a silvery-white metal that occurs in nature in many different forms called compounds. These compounds are solids and they do not burn well. Two forms of barium, barium sulfate and barium carbonate, are often found in nature as underground ore deposits. Barium is sometimes found naturally in drinking water and food. Because certain forms of barium (barium sulfate and barium …

Fundamental Chemistry of Precipitation and Mineral Scale ...

remove calcium and barium in the first stage. The result was a significant increase in the frequency of calcium oxalate and barium sulfate scale deposits in the first chlorine dioxide bleach stage and an increase in calcium carbonate deposits in the first extraction stage. In … Barium sulfate appears as white or yellowish odorless powder or small crystals. Mp: 1580°C (with decomposition). Density: 4.25 -4.5 g cm-3. Insoluble in water, dilute acids, alcohol.Soluble in hot concentrated sulfuric acid.Used as a weighting mud in oil-drilling, in …

Barium Toxicity - Myersdetox.com

Toxic metals may also simply deposit in many sites, causing local irritation and other toxic effects. Sources of Barium. Barium is found in compounds like barium sulfate, barium oxide, barium hydroxide, barium carbonate, barium chloride, and barium nitrate, just to name a few. Barium. Barium (Ba) is obtained chiefly from the mineral barite. Barium is a soft, silvery, reactive metal. Because barium is so dense it is commonly used in some alloys, for example in spark plugs and ball bearings. As of 2013, China, India and Morocco were the world's largest producers of barium.

(PDF) The preparation and characteristics of surface ...

The preparation and characteristics of surface treated barium sulfate extender pigment ... By depositing a ferric oxide layer on barium sulfate particles a novel pigment with better optical and ... The injected water eventually reaches the producing wells and in these wells the mixture is made and the precipitation of barium sulfate (BaSO4) takes place. The crystals then stick in the walls of the tubings, in a process that may be similar to that of sodium chloride, but this time the problem is more serious because it is a very compact ...

Barium Sulfate Scale - Chemical Contaminant Removal

Why is Barium Sulfate Scale a problem? Although not as common as calcium carbonate and calcium sulfate scales, barium sulfate deposits have long plagued oil field and gas production operations. These scales interfere with fluid flow, enhance corrosion, causes production losses, result in equipment replacement, damage equipment and may host ... barium and water-soluble contrast media singly or in combination with flora in the mediastinum. Recognizing the advantages of barium sulfate with regard to its radio­ graphic density and mucosal coating abil­ ity, we compared its effects upon the medi­ astinum with the most commonly employed water-soluble contrast media [Gastrografin

11 questions with answers in BARIUM SULFATE | Science topic

Apr 30, 2019· Barium Sulfate - Science topic A compound used as an x-ray contrast medium that occurs in nature as the mineral barite. It is also used in various manufacturing applications and mixed into heavy ... Sep 17, 1991· Alkaline earth metal scales, especially barium sulfate scale deposits are removed from oilfield pipe and other tubular goods with a scale-removing composition comprising an aqueous alkaline solution having a pH of about 8 to about 14, preferably about 11 to 13, of a polyaminopolycarboxylic acid, preferably EDTA or DTPA and a catalyst or synergist …

Barite - an overview | ScienceDirect Topics

Barium sulfate (Figure 4.3), commonly called barite, is found in the hydrothermal veins of cavity fissures in limestones, sandstone, shales, or clays or as surface deposits resulting from limestone weathering. Barite brightness depends on origin; brown buff barite (brightness 80–85) is found in Nevada, Missouri, Georgia, Illinois, and Mexico ... Jan 11, 2019· Barium sulfate is an inorganic chemical compound composed of barium, sulfur and oxygen elements that have been reacted through the combining of barium ions and sulfate salts. It has the chemical formula BaS0 4 and is a white crystal-like solid that has no odor and is insoluble in water.