EP 1208282 A1 20020529 - METHOD FOR INJECTING DENSE ADDITIVE INTO DRILLING WELLS AND COMPOSITION THEREFORE
Title (en)
METHOD FOR INJECTING DENSE ADDITIVE INTO DRILLING WELLS AND COMPOSITION THEREFORE
Title (de)
VERFAHREN ZUM INJIZIEREN VON EINEM DICHTEN ZUSATZ IN BOHRLÖCHERN UND ZUSAMMENSETZUNG DAFÜR
Title (fr)
TECHNIQUE D'INJECTION DE PRODUIT D'ADDITION DENSE DANS DES PUITS DE FORAGE ET COMPOSITION CORRESPONDANTE
Publication
Application
Priority
- US 0017982 W 20000629
- US 36055899 A 19990726
Abstract (en)
[origin: WO0107750A1] The present invention discloses method and composition of improved additives for use in control of lost circulation, fluid loss and/or seepage loss of drilling fluid during drilling operations. In particular, the additive is formed such that the additive can be incorporated into the drilling fluid with much greater speed than powdered or ground additives of similar components. A dense additive is created from lost circulation and seepage control material for use in drilling operations. The steps to create this dense additive include grinding of the lost circulation and seepage control material to produce a small particle size and applying pressure to the lost circulation and seepage control material such that it densifies and is forced through apertures creating a pelletized dense additive. Heating the ground lost circulation and seepage control material, which can release oils or other binding components, is a typical byproduct of the process of forcing the ground product through the apertures.
IPC 1-7
IPC 8 full level
C09K 8/20 (2006.01); C09K 8/035 (2006.01); E21B 21/00 (2006.01)
CPC (source: EP)
C09K 8/035 (2013.01); E21B 21/003 (2013.01)
Citation (search report)
See references of WO 0107750A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0107750 A1 20010201; AU 5900900 A 20010213; BR 0012724 A 20020528; CA 2380237 A1 20010201; CN 1364211 A 20020814; EP 1208282 A1 20020529; MX PA02000956 A 20020918; NO 20020385 D0 20020124; NO 20020385 L 20020124; RU 2241730 C2 20041210
DOCDB simple family (application)
US 0017982 W 20000629; AU 5900900 A 20000629; BR 0012724 A 20000629; CA 2380237 A 20000629; CN 00810859 A 20000629; EP 00945008 A 20000629; MX PA02000956 A 20000629; NO 20020385 A 20020124; RU 2002104712 A 20000629