High temperature stabilizer for well treatment fluids and methods of using same

a technology of stabilizer and well treatment fluid, which is applied in the direction of fluid removal, wellbore/well accessories, chemistry apparatus and processes, etc., can solve the problems of reducing the viscosity of the fluid, and exceeding the maximum operating limits of conventional well treatment fluid, etc., to achieve the effect of increasing the viscosity and facilitating hydration
US20120012325A1Inactive Publication Date: 2012-01-19BAKER HUGHES INC
4 Cites 4 Cited by

Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
BAKER HUGHES INC
Publication Date
2012-01-19
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A method of fracturing a subterranean formation by introducing into the formation a high temperature well treatment fluid containing a polymeric gel and an electron donating compound comprising phenothiazine or a phenothiazine derivative. The high temperature well treatment fluid may further contain a crosslinking agent or the polymeric gel may be crosslinked. The electron donating compound performs as a stabilizer in the treatment of wells having a subterranean formation temperature of up to about 500° F. (260° C.).
Need to check novelty before this filing date? Find Prior Art

Description

[0001] This application is a divisional application of U.S. patent application Ser. No. 12 / 020,755, filed on Jan. 28, 2008.BACKGROUND OF THE INVENTION

[0002] 1. Field of the Invention

[0003] The present invention relates to the use of polymeric compounds as thermal decomposition prevention additives for well treatment fluids.

[0004] 2. Description of the Related Art

[0005] Well treatment fluids are useful in hydrocarbon completion operations in various functions, such as being proppant carriers in fracturing processes or as being fluid loss control agents in well completion and workover operations. Well treatment fluids often contain gels that are formed from polymers mixed with water.

[0006] As operators continue to drill significantly deeper to access hydrocarbon bearing formations, the conditions in which well treatment fluids must operate often exceeds the maximum operational limits of conventional well treatment fluids. For example, as the drilling depths continue to increase, so do the f...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More