WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO1980001469) METHOD AND DEVICE FOR PREPARING A DRILLING MUD
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/001469    International Application No.:    PCT/SU1979/000096
Publication Date: 24.07.1980 International Filing Date: 28.09.1979
IPC:
B01F 3/12 (2006.01), B01F 7/00 (2006.01), E21B 21/06 (2006.01), B01F 5/00 (2006.01)
Applicants:
Inventors:
Priority Data:
2705511 16.01.1979 SU
Title (EN) METHOD AND DEVICE FOR PREPARING A DRILLING MUD
(FR) METHODE ET DISPOSITIF DE PREPARATION D"UNE BOUE DE FORAGE
Abstract: front page image
(EN)A method for preparing a drilling mud consists in mixing the solid and the fluid phases and subsequently dispersing the solid phase in the fluid one until the colloidal drilling mud is formed with the particles of the solid phase. The dispersing is carried out at several stages. At each stage an additional portion of preliminarily prepared fluid phase is introduced into the mixture, the pH level of that phase being inversely proportional to the degree of size reduction of the solid phase particles at that stage. A device for preparation of the drilling mud comprises a diaphragm electrolyzer (19) with its casing (22) having an inlet and outlets (29, 30, 31) for additional portions of the fluid phase and, placed in the casing, an anode (20) and a cathode (21) separated one from another with a diaphragm (24) and connected to a direct current source (23). A disperser (1) is provided with an additional stator (5) and an additional rotor (11) dividing the casing into consecutive sections (6, 7, 8) interconnecting with each other through overflow holes (15) made in the central area of each stator (5) and connected as well with corresponding outlets (29, 30, 31) of the diaphragm electrolyzer (19).
(FR)Une methode de preparation d"une boue de forage consiste a melanger les phases solide et fluide puis a disperser la phase solide dans la phase fluide jusqu"a former la boue de forage colloidale avec les particules de la phase solide, La dispersion s"effectue en plusieurs etapes. A chaque etape on ajoute une partie de la phase fluide preparee prealablement au melange, le pH de cette phase etant inversement proportionnel au degre de reduction de la dimension des particules de la phase solide a cette etape. Un dispositif de preparation de la boue de forage comprend un electrolyseur a diaphragme (19) dont l"enceinte (22) possede une entree et des sorties (29, 30, 31) pour les parties supplementaires de la phase fluide et, placees dans l"enceinte, une anode (20) et une cathode (21) separees l"une de l"autre par un diaphragme (24) et connectees a une source de courant continu (23). Un dispositif (1) est prevu avec un stator supplementaire (5) et un rotor supplementaire (11) divisant l"enceinte en sections consecutives (6, 7, 8) communiquant entre elles par l"intermediaire d"orifices de deversement (15) amenages dans la region centrale de chaque stator (5) et communiquant egalement avec les sorties correspondantes (29, 30, 31) de l"electrolyseur a diaphragme (19).
Designated States:
Publication Language: Russian (RU)
Filing Language: Russian (RU)