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NO894576D0 - DIFFICULT DRILLING AND USE THEREOF. - Google Patents

DIFFICULT DRILLING AND USE THEREOF.

Info

Publication number
NO894576D0
NO894576D0 NO894576A NO894576A NO894576D0 NO 894576 D0 NO894576 D0 NO 894576D0 NO 894576 A NO894576 A NO 894576A NO 894576 A NO894576 A NO 894576A NO 894576 D0 NO894576 D0 NO 894576D0
Authority
NO
Norway
Prior art keywords
difficult drilling
drilling
difficult
Prior art date
Application number
NO894576A
Other languages
Norwegian (no)
Other versions
NO894576L (en
Inventor
Shih-Ruey To Chen
Christine A Costello
Gary F Matz
Original Assignee
Calgon Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US06/674,215 external-priority patent/US4652623A/en
Publication of NO894576L publication Critical patent/NO894576L/en
Application filed by Calgon Corp filed Critical Calgon Corp
Priority to NO894576A priority Critical patent/NO894576D0/en
Publication of NO894576D0 publication Critical patent/NO894576D0/en

Links

NO894576A 1984-11-23 1989-11-16 DIFFICULT DRILLING AND USE THEREOF. NO894576D0 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO894576A NO894576D0 (en) 1984-11-23 1989-11-16 DIFFICULT DRILLING AND USE THEREOF.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US06/674,215 US4652623A (en) 1984-11-23 1984-11-23 Polymers for use as filtration control aids in drilling muds
NO854676A NO165548C (en) 1984-11-23 1985-11-22 POLYMERS FOR USE AS A FILTRATION CONTROL AID IN DRILL.
NO894576A NO894576D0 (en) 1984-11-23 1989-11-16 DIFFICULT DRILLING AND USE THEREOF.

Publications (2)

Publication Number Publication Date
NO894576L NO894576L (en) 1986-05-26
NO894576D0 true NO894576D0 (en) 1989-11-16

Family

ID=27352953

Family Applications (1)

Application Number Title Priority Date Filing Date
NO894576A NO894576D0 (en) 1984-11-23 1989-11-16 DIFFICULT DRILLING AND USE THEREOF.

Country Status (1)

Country Link
NO (1) NO894576D0 (en)

Also Published As

Publication number Publication date
NO894576L (en) 1986-05-26

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