Methods of pumping fluids having different concentrations of particulate at different average bulk fluid velocities to reduce pump wear and maintenance in the forming and delivering of a treatment fluid into a wellbore

US7621329B1 · kind B1 · utility

Assignee

• Halliburton Energy Services, Inc. · US

Inventors

• Leonard R. Case · Duncan, US
• Michael Segura · Duncan, US
• Harold Grayson Walters · Duncan, US
• Jason E. Bryant · Duncan, US
• Herbert J. Horinek · Duncan, US
• Jonn Thompson · Flint, US
• Von Parkey · Oklahoma City, US
• Shaun Burns · Grand Junction, US
• Billy Slabaugh · Duncan, US

Key dates

• Filing date: May 7, 2008
• Grant date: Nov 24, 2009
• Expiry date: May 7, 2028

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21B43/2607
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

The invention is for a method of forming and delivering a treatment fluid into a wellbore. In one aspect, a method is provided for pumping a first fluid having a relatively high concentration of a particulate suspended therein and pumping a second fluid having either none of the particulate or a relatively low concentration of the particulate suspended therein, and then merging at least the first and second fluids to form a treatment fluid having a merged concentration of the particulate. According to this aspect, the first fluid has a relatively high concentration of a hydratable additive and the second fluid has either none or a relatively low concentration of the hydratable additive.