Drilling fluid additive with low freezing point
a technology of additives and additives, applied in the direction of drilling compositions, chemistry apparatuses and processes, etc., can solve the problems of increasing the cost and inefficiency of diesel based fluids, affecting the efficiency of drilling fluids, so as to increase the sugar content of syrup additives, and reduce the freezing point of syrup additives.
Active Publication Date: 2019-04-23
MUD MASTERS ACQUISITION CORP
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Benefits of technology
The patent is about a drilling fluid additive that improves lubrication and reduces friction in water-based drilling fluids. The additive contains carbohydrates, such as corn syrup or cane syrup, which act as a lubricant and reduce the amount of hydration of clays and shales when exposed to a wellbore. The additive can be used in concentrations ranging from 70% to 80% by volume of the drilling fluid and has a density of 8 to 12 pounds per gallon. The invention is non-toxic, biodegradable, and environmentally friendly. The method includes mixing syrup solids and a liquid medium to create a syrup additive, and increasing the sugar content of the additive to decrease its freezing point. The sugar content of the additive can be increased to make it non-supercooling, meaning it does not solidify at temperatures below water's freezing point.
Problems solved by technology
In the past, water, diesel oil, synthetic oils and combinations of oils and emulsions have been used as the continuous liquid phase of drilling fluids with inefficient to moderate results.
Using diesel oil as a continuous liquid phase of a drilling fluid is economical, but environmentally hazardous.
Drill cuttings must be contained and remediated, as well as earthen pits are contaminated with the diesel oil and salt water used, adding to the costs and inefficiency of diesel based fluids.
Using a synthetic hydrocarbon or specific olefin for the continuous liquid phase of the drilling fluid has its advantages, however, these synthetic oils are expensive and in short supply.
Method used
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[0042]As required, detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention that may be embodied in various forms. The figures are not necessarily to scale, some features may be exaggerated to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention.
[0043]In one embodiment, the additive of the present invention is manufactured as follows: pure corn starch that is approximately 99 percent pure is converted into ordinary corn syrup through a process called acid hydrolysis. In this process, the liquid corn starch is mixed with a weak solution of hydrochloric acid and heated in order to break down the corn starch molecules into sugar. The hydro...
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Abstract
A drilling fluid additive, is provided, and the additive comprises: syrup solids and a liquid medium; and the sugar content of the additive is directly proportionate to the freezing point of the additive.
Description
RELATED APPLICATION[0001]This application is a continuation-in-part of U.S. application Ser. No. 13 / 134,048 filed on May 27, 2011 now U.S. Pat. No. 8,216,981 entitled “Drilling Fluid Additive System”, which is continuation-in-part of U.S. application Ser. No. 12 / 802,702 filed on Jun. 14, 2010 now U.S. Pat. No. 7,972,995, entitled “Drilling Fluid Additives Containing Heated Syrup Solids”, which is a continuation-in-part of U.S. application Ser. No. 12 / 459,480 filed on Jul. 2, 2009 entitled “Drilling Fluid Additives Containing Syrups” which issued on Jul. 27, 2010 as U.S. Pat. No. 7,763,570, and which is a continuation-in-part of U.S. application Ser. No. 12 / 387,182 filed on Apr. 30, 2009 entitled “Drilling Fluid Additives Containing Corn Syrup Solids” which issued on Jun. 29, 2010 as U.S. Pat. No. 7,745,378.This application is a reissue application of issued U.S. Pat. No. 8,673,825, which is a continuation-in-part of U.S. application Ser. No. 13 / 134,048 filed on May 27, 2011 now U.S....
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IPC IPC(8): C09K8/08C09K8/035C08L3/02C08L5/00C08B30/18
CPCC09K8/08C08L3/02C08L5/00C09K8/035C08B30/18C09K2208/12C09K2208/34
InventorRAYBORN, SR., JERRYDELAROSA, DAN
OwnerMUD MASTERS ACQUISITION CORP