GB169290A - Water shut-off in wells such as oil wells - Google Patents

Water shut-off in wells such as oil wells

Info

Publication number
GB169290A
GB169290A GB1713320A GB1713320A GB169290A GB 169290 A GB169290 A GB 169290A GB 1713320 A GB1713320 A GB 1713320A GB 1713320 A GB1713320 A GB 1713320A GB 169290 A GB169290 A GB 169290A
Authority
GB
United Kingdom
Prior art keywords
casing
oil
lowered
freezing
inner casing
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
GB1713320A
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
Priority claimed from US302878A external-priority patent/US1342780A/en
Application filed by Individual filed Critical Individual
Priority to GB1713320A priority Critical patent/GB169290A/en
Publication of GB169290A publication Critical patent/GB169290A/en
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
    • E21B36/00—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
    • E21B36/003—Insulating arrangements
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D1/00—Sinking shafts
    • E21D1/10—Preparation of the ground
    • E21D1/12—Preparation of the ground by freezing
    • E21D1/14—Freezing apparatus

Abstract

169,290. Vedder, D. G. June 24, 1920. Wells.-Water is shut out of oil and like wells by freezing the water in the area between the water-bearing stratum and the oil &c. bearing stratum and externally of the well casing. After sinking the well it is filled with mud and a casing 46 is lowered therein, the casing having a perforated lower end within which is a short perforated casing 52; the inner casing, is secured at its upper end to the outer casing by a bellshaped fitting 50 and between the casings is a cement &c. barrier 48. A plug 60 of wood, rubber, cement, &c. is then lowered and driven into the inner casing 52 and the mud above the plug is removed. An inner casing 49 is then lowered and connected by threading to the first inner casing 52 ; a freezing-coil 53 is also lowered. A non-freezing solution, such as calcium-chloride solution, is poured in between the casings 49, 46, and the coil 53 is connected to a refrigerating plant 54; the mud outside the casing 46, between the water zone 43 and oil zone 45 is then frozen. The plug 60 is then drilled out and pump tubing is lowered within the inner casing, a plug near the foot of the pump tubing keeping the space between the pump tubing and inner casing free from oil, so leaving an air jacket which prevents freezing of the oil in the pump tubing, or a vacuum may be formed in this space and also above the non-freezing solution. The freezing-process is continued during pumping. The outer casing 46 may be lowered during the drilling of the well; then after completion of the drilling, the short inner casing 52, with its plug 60, bell fitting 50, and an annular external plate above its perforations, is lowered into position and cement is forced through a, pipe penetrating the fitting 50 to form the barrier 48 above the annular external plate. The mud above the barrier is then removed, and the casing 49 &c. applied as before. A frozen shut-off device may also be employed where a water zone is found below an oil zone or between two oil zones.
GB1713320A 1919-06-09 1920-06-24 Water shut-off in wells such as oil wells Expired GB169290A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1713320A GB169290A (en) 1919-06-09 1920-06-24 Water shut-off in wells such as oil wells

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US302878A US1342780A (en) 1919-06-09 1919-06-09 Method and apparatus for shutting water out of oil-wells
GB1713320A GB169290A (en) 1919-06-09 1920-06-24 Water shut-off in wells such as oil wells

Publications (1)

Publication Number Publication Date
GB169290A true GB169290A (en) 1921-09-26

Family

ID=26252498

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1713320A Expired GB169290A (en) 1919-06-09 1920-06-24 Water shut-off in wells such as oil wells

Country Status (1)

Country Link
GB (1) GB169290A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3295327A (en) * 1964-10-21 1967-01-03 Halliburton Co Underground structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3295327A (en) * 1964-10-21 1967-01-03 Halliburton Co Underground structure

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