Method and composition for sealing earth formation

• US 2,800,963 A
• Filed: 12/10/1953
• Issued: 07/30/1957
• Est. Priority Date: 12/10/1953
• Status: Expired due to Term

• Current Assignee: Hayden Roberts, Wayne F. Hower
• Original Assignee: Hayden Roberts, Wayne F. Hower
• Inventors: Roberts, Hayden, Hower, Wayne F.
• Application Number:
  US03/397,484
• Time in Patent Office: 1,328 Days
• US Class Current: 166/293
• CPC Class Codes: C04B 24/00 Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
• CPC Class Codes: C04B 24/36 Bituminous materials, e.g. tar, pitch C04B24/243 takes precedence
• CPC Class Codes: C04B 28/04 Portland cements
• CPC Class Codes: C09K 17/40 containing mixtures of inorganic and organic compounds
• CPC Class Codes: C09K 8/502 Oil-based compositions

Claims

2. THE METHOD OF SELECTIVELY SEALING WATER BEARING EARTH FORMATIONS ADJACENT HYDROCARBON BEARING FORMATIONS IN OIL WELLS OR THE LIKE, CONSISTING IN INTIMATELY MIXING PORTLAND CEMENT, IN A PROPORTION OF ABOUT 400 GALLONS OF OIL TO 100 SACKS OF CEMENT, AN OIL CONTAINING VERY LITTLE WATER, AND A SURFACE ACTIVE AGENT WHICH IS MISCIBLE WITH HYDROCARBONS IN A PROPORTION OF ABOUT 6 GALLONS OF AGENT TO 100 SACKS OF CEMENT, TO MAKE A NON-AQUEOUS PUMPABLE SLURRY OF A VISCOSITY OF 15 TO 20 POISES, CIRCULATING THE SLURRY SO FORMED INTO A BORE HOLE IN THE EARTH FORMATIONS UNTIL IT IS ADJACENT BOTH A HYDROCARBON BEARING FORMATION AND ADJACENT WATER BEARING FORMATION, STOPPING THE CIRCULATION AND HESITATING A SHORT PERIOD OF TIME TO ALLOW WATER FROM THE WATER BEARING FORMATION TO COME IN CONTACT WITH THE PORTION OF THE SLURRY ADJACENT THE WATER BEARING FORMATION, THEN EXERTING HIGH PRESSURE ON THE SLURRY TO SQUEEZE THE SAME INTO BOTH THE HYDROCARBON BEARING FORMATION AND THE WATER BEARING FORMATION AND HOLDING THE SLURRY IN THAT POSITION UNTIL THE SLURRY IN THE WATER BEARING FORMATION SETS INTO A HARD DENSE MASS.