博文

目前显示的是 四月, 2019的博文

Why drilling and completion fluids are more willing to choose potassium formate?

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In traditional drilling and completion fluids, inorganic potassium salts are widely used. KCl is mostly used as K +  source in anti-collapse drilling fluids. However, with the increase of drilling depth and the difficulty of drilling, the anti-collapse (wellbore stability) of shale in deep formation has become a problem that drilling fluid technology must face and solve. Potassium formate is a new additive for drilling and completion fluids, which has the advantages of strong inhibition, high temperature stability, good compatibility, low corrosivity, good environmental protection and reservoir protection. Potassium formate is mainly used to prepare injection fluid for water-bearing oil wells. Potassium formate has been used in drilling and completion fluids abroad since the late 1990s, especially in high density drilling and completion fluids, and has achieved very good results. The drilling fluid system prepared with potassium formate has the outstanding advantages of strong inhibiti

Potassium formate for well drilling can prevent borehole wall collapse

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In recent years, potassium formate has made some progress in well drilling, which makes it easier to control the rheological properties of drilling fluid. It has good anti-collapse performance, oil and gas reservoir protection, and low corrosiveness. It is also non-toxic, biodegradable, environmentally friendly and recyclable. In some formations, drilling fluid column pressure can not reach the formation support pressure, which is the main reason for formation instability and wellbore collapse. Therefore, formation collapse is a common problem in underbalanced drilling. There are several remedial measures to solve this problem in collapse-prone shale formation. These measures include controlled pressure drilling, solid expansion pipe drilling and casing or liner drilling technology. Sometimes even when controlled pressure drilling is used, it is still a difficult problem to deal with collapse-prone formations. What are the specific effects of adding potassium formate to drilling f

CDchem brings you to know and understand the true sodium tripolyphosphate(STPP)

When it comes to  sodium tripolyphosphate(STPP) , the first thing people think of is  washing powder? Yes, the common auxiliaries used in washing powders are STPP, which can  be used in combination with metal ions in water to form soluble complexes, thereby  eliminating sedimentation and effectively enhancing the washing efficiency of washing  powder. But because of "eutrophication" and the gradual realization of non-phosphating in  laundry powder, is STPP useless? In fact, STPP is not only useful in detergent  auxiliaries, but also widely used in ceramics, industrial soft water, paper making,  drilling mud dispersion, anti-oil stain agent and other industries. Phosphorus combines with oxygen or phosphorus and other elements to form a variety of  phosphorus-containing compounds. Due to the different degree of phosphorus oxidation,  it also forms a variety of oxygen-containing phosphate. The oxidation value in the form  of phosphorus can be 1/2/3/4/5. In general, phosphor

Are you still worried about buying fake sodium tripolyphosphate(STPP)?

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Recently, we heard many customers complain that "the purchase of adulterated industrial  sodium tripolyphosphate(STPP) has greatly affected the follow-up production work."  Here, CD wants to remind you not to go overboard because of the temporary price  problem. When purchasing industrial sstpp, we should first choose a formal manufacturer  or distributor. Here, CD introduces the advantages of formal manufacturers of industrial STPP. Firstly, the advantages of formal industrial STPP manufacturers'productivity are  reflected from the source. For 60 years since our establishment in 1958, such  professional phosphate producers as CD have been focusing on R&D and production of  industrial STPP and other phosphate products. The products are mainly sold to more than  20 provinces and cities in China and exported to Europe, America, Africa, Japan, South  Korea and Southeast Asia, which shows that the strength of technological production is  excellent. Secondly, the formal i

What is the use of food additive phosphate?

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Nowadays, people's life is more and more colorful. Of course, we can not live without food additives. Food additives are chemically synthesized or natural substances added to food to improve its quality, color, aroma and taste, and to meet the needs of preservation and processing technology. At present, there are 6 categories, 22 sub-categories and more than 1500 varieties of food additives approved for use in China. Next, the manufacturer tells you what is the use of food additive phosphate ? Sodium tripolyphosphate(STPP) is used as a high quality water retainer in food and can be used to increase the taste of food. Common terms can, cooked meat products, flavored dairy products, pastries and other additions. STPP of food grade in CDchem is mainly used as a quality improver in meat products, canned meat and other food industries. Food grade sodium hexametaphosphate(SHMP) can be added to beverages according to the national food additive standard. The main function of SHMP in fo