On July 31, the reporter learned from Tuha Oilfield Exploration Company that China Petroleum Corporation's tight sandstone key exploration well Ji 4H completed the drilling and completion operations of the kilometer horizontal section, and created the longest record of the horizontal section of the Tuha horizontal well.
The Ji 4H horizontal well is a key exploration well deployed in the Tushan arc belt of the Tuha Oilfield. During the drilling process, technicians drilled high-efficiency PDC bits and screws according to the lithology and stratigraphic characteristics of the area. The drilling cycle was reduced from 76.5 days to 53 days, and the average speed was increased from 4.03 meters per hour to 6.19 meters. For the first time, the Ji 4H horizontal well completed the small wellbore sliding casing cementing operation in the Tuha oil field, and the casing was successfully inserted once.
Scientific Research Special Cyclodextrin Reagent mainly including Oligo Beta Cyclodextrin, Mono-6-Azido-6-Deoxy Beta Cyclodextrin, Mono Hexamethylenediamine Beta Cyclodextrin, Mono-6-Ethanediamine-6-Deoxy Beta Cyclodextrin, Mono-6-p-Toluenesulfonyl Beta Cyclodextrin, Polyethylene Polyamine Modified Beta Cyclodextri,mono azido beta cyclodextrin cas 98169-85-8,Oligo Beta Cyclodextrin cas 98169-85-8.
Oligo (lactic acid) -beta-cyclodextrin (OLA-B-CD) is a new cyclodextrin derivative. Oligo-(lactic acid) group that can be degraded in the human body modified cyclodextrin with the general characteristics of common cyclodextrin derivatives, also has unique properties: 1, excellent biocompatibility. 2, excellent controlled release of specific guest molecular. 3, adjustable water-solubility. 4, capability to form duel interactions with specific drugs [1].
OLA-β-CD can be used to improve the solubility of water insoluble drugs, enhance drug stability and bioavailability, and achieve controlled release system or delayed release system of drugs. OLA-β-CD is of immense value in the field of drug development.
Features and use of Mono-6-Ethanediamine-6-Deoxy Beta Cyclodextrin:
Organic amine groups in a neutral or acid conditions can be positively charged which have very good composite ability to guest molecules.
Diamine group can form complex with many metal ions , such as Cu2+,Cr3+,Mg2+ and so on. This provide new approachs to achieve artifical enzyme and highlight supramolecular researches.
Diamine also provide a secondary amine group and a primary amine group which can be linked to many functional group. This make diamine cyclodextrin an important intermediate for cyclodextrin synthsis.
Scientific Research Special Cyclodextrin Reagent
Mono Azido Deoxy Beta Cyclodextrin,Polyethylene Polyamine Modified Beta Cyclodextrin, Mono Toluenesulfonyl Beta Cyclodextrin, Mono Ethanediamine Deoxy Beta Cyclodextrin
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