Downhole drilling spotting fluid composition and method
This paper discusses a spotting fluid concentrate composition suitable for use in downhole drilling operations in a pill for releasing periodically stuck drill string. It comprises glycerophosphoric acid ester; a polyacyloxy polycarboxylic acid ester of monoglycerides, diglycerides and mixtures thereof; an optional viscosifying agent for increasing the viscosity of the dispersion; and an optional sealing agent for preventing diffusion of water into the downhole formation. This patent also describes a method for lubricating a downhole well drilling operation. It comprises mixing a spotting fluid concentrate composition comprising glycerophosphoric acid ester, a polyacyloxy polycarboxylic acid ester of monoglycerides, diglycerides and mixtures thereof, an optional viscosifying agent and an optional sealing agent with drilling mud; and circulating the mud mixture through the well.
- Assignee:
- Turbo-Chem International, Inc., Lafayette, LA (USA)
- Patent Number(s):
- US 5002672; A
- Application Number:
- PPN: US 7-532261
- OSTI ID:
- 5367215
- Resource Relation:
- Patent File Date: 1 Jun 1990
- Country of Publication:
- United States
- Language:
- English
Similar Records
Non-polluting non-toxic drilling fluid compositions and method of preparation
Use of mono and polyalkylene glycol ethers as agents for the release of differentially stuck drill pipe
Related Subjects
03 NATURAL GAS
DRILLS
LUBRICATION
LUBRICANTS
CHEMICAL COMPOSITION
FAILURES
PHOSPHORIC ACID ESTERS
WELL DRILLING
WORKING FLUIDS
DRILLING
DRILLING EQUIPMENT
EQUIPMENT
ESTERS
FLUIDS
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing