润滑科技信息平台

Friction modifier for water-based well drilling fluids and methods of using the same

专利摘要

A drilling fluid composition comprising a mixture of a brine (A) an emulsifier, and (B) an oil soluble friction modifier of the following formula:where X=1 to 4, z=1 to 6, Q=0 to 2 R1 and R2 are independently H or an aliphatic group containing from 1 to about 16 carbon atoms, provided that the sum of R1 and R2 is between 0 and about 16, R' is an aliphatic group containing an average of from about 8 to about 24 carbon atoms, and R'' is selected from the group consisting of H, an aliphatic group containing between 1 and an average of about 18 carbons, andwhere Q, X, z, R1, R2, R' and R'' are defined as set forth above, and Y is 0 to 5 is disclosed. The compositions of the present invention have beneficial lubrication properties. These compositions are useful in drilling, working and completing well bore holes. ......

基本信息

专利类型:
发明专利
申请/专利号:
US08/429436
申请日期:
1995-04-26
专利申请人:
路博润公司
分类号:
["C09K8/28","C09K8/06","C09K8/02","C09K7/02"]
发明/设计人:
MALCHOW, JR., GEORGE A.
权利要求: I claim:1. A water-based drilling fluid composition comprising a mixture of a brine (A) an emulsifier, and (B) an oil soluble friction modifier of the following formula: ##STR15## where X=1 to 4,z=1 to 6,Q=0 to 2R.sub.1 and R.sub.2 are independently H or an aliphatic group containing from 1 to about 16 carbon atoms, provided that the sum of the carbon atoms in R.sub.1 and R.sub.2 is between 0 and about 16,R' is an aliphatic group containing an average of from about 8 to about 24 carbon atoms, andR" is selected from the group consisting of H, an aliphatic group containing between 1 and an average of about 18 carbons, and ##STR16## where Q, X, z, R.sub.1, R.sub.2, R' and R" are defined as set forth above, and Y is 0 to 5.2. The composition of claim 1 wherein R" is hydrogen.3. The composition of claim 1 wherein X=1.4. The composition of claim 1 wherein R.sub.1 is hydrogen and R.sub.2 contains 1 to 10 carbon atoms.5. The composition of claim 1 wherein R.sub.2 is hydrogen and R.sub.1 contains 1 to 10 carbon atoms.6. The composition of claim 1 wherein R.sub.1 is hydrogen and R.sub.2 contains 1 to 2 carbon atoms.7. The composition of claim 1 wherein R.sub.2 is hydrogen and R.sub.1 contains 1 to 2 carbon atoms.8. The composition of claim 1 wherein z is 1 to 4.9. The composition of claim 1 wherein z is 1.10. The composition of claim 2 wherein Q=0, R.sub.1 and R.sub.2 are both hydrogen, X and z are both 1, and R' is n-dodecyl.11. The composition of claim 1 wherein R" is an aliphatic group containing an average of from 1 to an average of 14 carbon atoms.12. The composition of claim 1 wherein R" is an aliphatic group containing an average of from 1 to an average of 12 carbon atoms.13. The composition of claim 1 wherein R" is an aliphatic group containing an average of from 1 to an average of 8 carbon atoms.14. The composition of claim 1 wherein R" is an aliphatic group containing an average of from 1 to an average of 4 carbon atoms.15. The composition of claim 1 wherein R" is represented by the structure: ##STR17## where X=1 to 4,R.sub.1 and R.sub.2 are independently H or an aliphatic group containing from 1 to about 16 carbon atoms, provided that the sum of the carbon atoms in R.sub.1 and R.sub.2 is between 0 and about 16, R' is an aliphatic group containing an average of from about 8 to about 24 carbon atoms, and Y is 0 to 5.16. The composition of claim 15 wherein Y=1 to 4.17. The composition of claim 15 wherein Y=0 to 2.18. The composition of claim 15 wherein Q=0, Y=0, R.sub.1 and R.sub.2 are both hydrogen, X and z are both 1, and R' is n-dodecyl.19. The composition of claim 1 wherein the oil soluble friction modifier is present at a level of between about 1/2 and about 10 pounds of oil soluble friction modifier per barrel of composition.20. The composition of claim 1 wherein the oil soluble friction modifier is present at a level of between about 1 to and about 8 pounds of oil soluble friction modifier per barrel of composition.21. The composition of claim 1 wherein the oil soluble friction modifier is present at a level of between about 2 and about 6 pounds of oil soluble friction modifier per barrel of composition.22. The composition of claim 1 wherein the oil soluble friction modifier is present at a level of between about 2.5 and about 3 pounds of oil soluble friction modifier per barrel of composition.23. The composition of claim 1, further comprising at least one weighting agent.24. The composition of claim 1, further comprising at least one at least one clay.25. The composition of claim 1, further comprising at least one surfactant.26. The composition of claim 1, further comprising lime.27. The composition of claim 23 wherein the weighting agent is barium sulfate, iron oxide, calcium chloride, calcium bromide, zinc bromide, or zinc chloride.28. The composition of claim 1, further comprising at least one weighting agent or at least one clay.29. A composition according to claim 1 further comprising a carrier oil selected from the group consisting of petroleum oils, crude oils, diesel oils, mineral seal oils, kerosenes, fuel oils, white oils, aromatic oils, animal oils, vegetable oils, and synthetic oils.30. A composition according to claim 29 in wherein the carrier oil is a petroleum oil.31. A composition according to claim 29 in wherein the carrier oil is a vegetable oil.32. A composition according to claim 29 in wherein the carrier oil is a synthetic oil.33. A method, comprising the steps of introducing the composition of claim 1 into a wellbore and drilling, completing or working over the wellbore hole.