Organic salt weighting agent
An organic salt and weighting agent technology, applied in the field of drilling, can solve the problems of performance defects limiting the scope of application, etc., and achieve the effects of suppressing borehole wall cracks, protecting oil and gas layers, and improving temperature resistance
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[0021]Example 1: An organic salt heavier comprising an organic salt, the molecular formula of the organic salt: Ar (COO)nMnAmong them, A is a hetero atom or a group with a heteroatom, and R is an organic carbon chain having a carbon number 1 to 6, and COO is an organic carboxylate, m is a metal cation or ammonium ion.
[0022]The organic salt heavier preparation of the present invention is a white powder, odorless, odorless, not volatile, stable when normal temperature, and its nature can remain a few years. The material is easy to absorbing, soluble in water, neutral or slightly alkalinity, slightly soluble in acetone and ethanol in aqueous solution.
[0023]The organic salt of the organic salt of the present invention is an organic carbon chain having a carbon number 1 to 6, and according to the C-C key energy of the organic compound (347 kJ / mol), C = C key energy (611 kJ / mol), and the C≡C key energy ( Chemical parameters such as 837kj / mol), C-O key energy (360kJ / mol) and C-H ke...
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[0054]Example 2: The organic salt of the present invention has been widely used in Karami oilfield. It is in the East Kwan 1 well, Huo 002,003 well, Gaoquan 1 well, Jiu Yun 1 well, An 5 well, Ann 001 well, Taiwan 59 well, Taiwan 60, Mana 1, Mana 001, 1002, 1003 wells, Taiwan 62, 63 well drilling and test completion liquid, as a completion fluid in the Tarim Oilfield 1, 10 wells in Wild Cloud 2, which also in front of the southern edge of Xinjiang Oilfield and high-density complex well drilling and high-temperature high-pressure well test operation in the Sanda Oilfield, the drilling well of the Tariwood Oilfield exceeded 7000m Drilling operation and high temperature high pressure well test operation, production and verification, it is very suitable for complex well drilling operations in Tuha Oilfield.
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