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公开(公告)号：US3634235A
公开(公告)日：1972-01-11
申请号：US3634235D
申请日：1967-12-21
Applicant: OIL BASE
Inventor： WILSON DOYNE L , BENNETT ROBERT B
CPC classification number: C09K8/32 , Y10S507/91
Abstract: PRE-TEATMENT OR POST-TREATMENT OF OIL BASE DRILLING FLUIDS FOR OIL WELL APPLICATIONS FOR PURPOSES OF STABILIZING THE FLUID AGANINST DETERIORATION UPON CONTAMINATION WITH WATER BASE DRILLING FLUIDS, WITH OR WITHOUT CLAY SOLIDS, IS EFFECTED BY ADDING TO THE OIL BASE FLUID AN AMPHOTERIC SURFACE-ACTIVE AGENT CONTAINING BOTH ANIONIC AND CATIONIC SURFACE-ACTIVE GROUPS. EXEMPLARY COMPOUNDS WHICH ARE EXTREMELY EFFECTIVE SUFACE-ACTIVE AGENTS IN THE FUNCTION ARE AMINES AND BETAINES WHICH CONTAIN ONE OR MORE CARBOXYL OR CARBOXYLATE GROUPS. ENHANCED EFFECTS ARE ALSO AVAILABLE EMPLOYING SUCH AMPHOTERIC COMPOUNDS WITH SUFONATE TYPE ANINIC SURFACE-ACTIVE AGENTS.
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公开(公告)号：US3642623A
公开(公告)日：1972-02-15
申请号：US3642623D
申请日：1969-10-10
Applicant: OIL BASE
Inventor： BENNETT ROBERT B , MCMORDIE WARREN C JR
CPC classification number: C09K8/36 , Y10S507/91 , Y10S516/05 , Y10S516/07
Abstract: STABILIZATION OF OIL CONTINUOUS PHASE WELL FLUIDS, PARTICULARLY OIL BASE DRILLING FLUIDS, AGAINST CONTAMINATION WITH WATER-SOLUBLE ALKALINE EARTH SALTS, E.G., CALCIUM CHLORIDE, IS ACCOMPLISHED BY ADDITION OF A NOVEL ADDITIVE SYSTEM COMPRISING A WATER-SOLUBLE ACID-BLOCKED ALKANOLAMIDE NONIONIC SURFACTANT, A SULFONATED ACID ANIONIC SURFACTANT AND AN OIL-SOLUBLE NONIONIC ETHOXYLATED ALKYL PHENOL. THE ADDITIVE SYSTEM CONTROLS THE WATER WETTABLE SOLIDS IN AN OIL BASE WELL FLUID SYSTEM IN THE PRESENCE OF ALKALINE EARTH SALTS FOR EXTENDED PERIOD AT HIGH TEMPERATURE KEEPING SUCH SOLIDS IN THE OIL-WET STATE.
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公开(公告)号：CA1062634A
公开(公告)日：1979-09-18
申请号：CA270656
申请日：1977-01-28
Applicant: OIL BASE
Inventor： BENNETT ROBERT B , MCMORDIE WARREN C JR , TAYLOR WILLIAM H
IPC: F16L55/165 , F16L55/16 , F16L55/18
Abstract: METHOD FOR REPAIRING SEWER PIPES A sewer pipe is repaired by inserting a thin, flexible liner within the sewer pipe. The liner has an outer diameter less than the inner diameter of the sewer pipe, whereby an annular space is presented between the liner and the sewer pipe. This annular space is filled with a low viscosity magnesium based cement, such as magnesium oxychloride cement or magnesium oxysulfate cement, which has a maximum Marsh funnel viscosity of 40 seconds per quart.
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Patent Agency Ranking
公开(公告)号：NO770328A
公开(公告)日：1977-08-04
申请号：NO770328
申请日：1977-02-01
Applicant: OIL BASE
Inventor： MCMORDIE WARREN C , BENNETT ROBERT B
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公开(公告)号：DE2703734A1
公开(公告)日：1977-08-04
申请号：DE2703734
申请日：1977-01-29
Applicant: OIL BASE
Inventor： MCMORDIE WARREN C , BENNETT ROBERT B
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公开(公告)号：CA876079A
公开(公告)日：1971-07-20
申请号：CA876079D
Applicant: OIL BASE
Inventor： WILSON DOYNE L , BENNETT ROBERT B
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公开(公告)号：FR2340360A1
公开(公告)日：1977-09-02
申请号：FR7703539
申请日：1977-02-02
Applicant: OIL BASE
Inventor： MCMORDIE WARREN C , BENNETT ROBERT B
Abstract: Oil-based drilling fluids contain a continuous oil phase and discontinuous water phase, together with 3-15 vol.% additive to control the density and gelling agents. Surfactant used comprises a small amt. of water-soluble monoalkyl aryl sulphonate contg. a 8-16C alkyl gp. sufficient to maintain the weighting additive in the oil-wetted state. Compsns. esp. for release of drilling rods from borehole drillings. Since the surfactant is solid, it can be incorporated with other solid ingredients and pre-packed ready for use; requiring addn. of diesel oil, water and weighting additives. It is effective in presence of impurities e.g. water, Cr lignosulphonates and Ca and Mg salts.
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公开(公告)号：NO770328L
公开(公告)日：1977-08-04
申请号：NO770328
申请日：1977-02-01
Applicant: OIL BASE
Inventor： MCMORDIE WARREN C , BENNETT ROBERT B
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