METHOD OF PREPARING BOREHOLE-DRILLING REAGENT Russian patent published in 1999 - IPC

Abstract RU 2137799 C1

FIELD: wellboring. SUBSTANCE: starch reagent for treating drilling muds is prepared by oxidizing watered mixture of grain, alkali, and catalyst with oxygen at stirring and at temperature above gelatinization temperature. During the oxidation, mixture viscosity is measured. Consumption of oxygen and/or stirring speed are chosen such as to maintain mixture viscosity within a range of 3000 to 9000 cPs. EFFECT: reduced filtration of drilling muds and improved filtration characteristics of reagent. 2 dwg

Similar patents RU2137799C1

Title	Year	Author	Number
METHOD OF PREPARING MODIFIED POLYSACCHARIDE- CONTAINING PRODUCTS	2000	Medvedeva L.V. Khurshudov V.A. Dudko M.P. Grjakolova N.M.	RU2165939C1
METHOD FOR PREPARING PRODUCT WITH ADHESIVE PROPERTIES OF GRAIN RAW MATERIALS	1991	Skibida I.P. Sakharov A.M. Sakharov A.M.	RU2017750C1
METHOD FOR PRODUCING POLYMER PRODUCT FROM VEGETABLE RAW MATERIALS AND PRODUCT PRODUCED USING SAID METHOD	2015	Vakhrushev Leonid Petrovich Nesterov Igor Mikhajlovich Sakharov Pavel Andreevich Shitikov Evgenij Sergeevich	RU2594852C1
DRILLING MUD WITH PLUG-IN SOLID PHASE PETRO PLUG	2019	Gerasimenko Aleksandr Petrovich Urazmetov Maksim Khalimovich Kletter Vladimir Iurevich Mileiko Aleksei Aleksandrovich Minibaeva Elena Vadimovna	RU2733766C1
DRILLING MUD-STABILIZING REAGENT AND DRILLING MUD CONCENTRATE	2003	Ippolitov V.V. Usynin A.F. Agaev G.G.	RU2237077C1
METHOD OF PRODUCING BINDER FOR HEAT-INSULATING FIBROUS BOARDS OF MINERAL OR GLASS WOOL	0	Lyubushkin Lev Vladimirovich Kharitonov Viktor Fedorovich Svirina Valentina Vasilevna Tsurkova Valentina Kharlampievna Guzhva Lyudmila Andreevna	SU1308493A1
METHOD OF SYNTHESIS OF CALCIUM GLUCONATE	1996	Sul'Man Ehsfir' Mikhajlovna Sannikov Oleg Borisovich Sidorov Aleksandr Ivanovich Avtushenko Margarita Vasil'Evna Matveeva Valentina Gennad'Evna Kirsanov Anatolij Timofeevich	RU2118955C1
DRILLING FLUID	0	Tomashevich Valerij Vadimovich Bystrov Mikhail Mikhajlovich Tormozina Nadezhda Fedorovna Vitebskaya Galina Borisovna Kupriyanova Valentina Anatolevna Vikhrov Aleksej Alekseevich Vasilev Kir Ivanovich	SU1788959A3
LUBRICATING ADDITIVE FOR DRILLING FLUID	2005	Naumov Vladimir Nikolaevich Naumova Valentina Nikolaevna Kislova Tat'Jana Vasil'Evna Gazizov Fanis Nasretdinovich	RU2285029C1
COMPLEX REAGENT STABILIZING POLYMERIC AND LOW-CLAY DRILLING MUDS AND A METHOD OF PREPARATION THEREOF	2003	Ippolitov V.V. Usynin A.F. Zaretskij V.S. Urosov S.A. Podshibjakin V.V. Bakharev F.A.	RU2236430C1

RU 2 137 799 C1

Authors

Dates

1999-09-20—Published

1996-10-24—Filed