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Method for controlling the set time of cement 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • E21B-033/13
  • E21B-033/14
출원번호 US-0458826 (1995-06-02)
발명자 / 주소
  • Dillenbeck
  • III Robert L. (Oklahoma City OK)
출원인 / 주소
  • BJ Services Company (Houston TX 02)
인용정보 피인용 횟수 : 64  인용 특허 : 0

초록 ▼

An oil and gas well cementing composition and method are shown utilizing hydraulic cement, water a cement hydration retarder and an additive which is effective over a selected time period to degrade the retarder. The additive is a controlled release oxidizer which releases nascent oxygen over time t

대표청구항 ▼

A method of cementing an oil and gas well, the method comprising the steps of: forming a cementing slurry by combining dry hydraulic cement, water in a sufficient amount to produce a pumpable slurry, a cement hydration retarder and an additive comprising a controlled release oxidizer which is effect

이 특허를 인용한 특허 (64)

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