FR434688A - Perfectionnements aux perforatrices - Google Patents

Perfectionnements aux perforatrices

Info

Publication number
FR434688A
FR434688A FR434688A FR434688DA FR434688A FR 434688 A FR434688 A FR 434688A FR 434688 A FR434688 A FR 434688A FR 434688D A FR434688D A FR 434688DA FR 434688 A FR434688 A FR 434688A
Authority
FR
France
Prior art keywords
perforation
perforation improvements
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
FR434688A
Other languages
English (en)
Inventor
Moses Arthur Knapp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of FR434688A publication Critical patent/FR434688A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/086—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder
FR434688A 1911-09-26 1911-09-28 Perfectionnements aux perforatrices Expired FR434688A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191121257T 1911-09-26

Publications (1)

Publication Number Publication Date
FR434688A true FR434688A (fr) 1912-02-09

Family

ID=32567312

Family Applications (1)

Application Number Title Priority Date Filing Date
FR434688A Expired FR434688A (fr) 1911-09-26 1911-09-28 Perfectionnements aux perforatrices

Country Status (2)

Country Link
FR (1) FR434688A (fr)
GB (1) GB191121257A (fr)

Also Published As

Publication number Publication date
GB191121257A (en) 1912-09-26

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