US3285341A - Removal of water blocks from oil and gas wells - Google Patents
Removal of water blocks from oil and gas wells Download PDFInfo
- Publication number
- US3285341A US3285341A US327513A US32751363A US3285341A US 3285341 A US3285341 A US 3285341A US 327513 A US327513 A US 327513A US 32751363 A US32751363 A US 32751363A US 3285341 A US3285341 A US 3285341A
- Authority
- US
- United States
- Prior art keywords
- water
- stratum
- solvent
- well
- block
- 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 38
- 239000002904 solvent Substances 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 19
- 229930195733 hydrocarbon Natural products 0.000 claims description 15
- 150000002430 hydrocarbons Chemical class 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 9
- 239000012530 fluid Substances 0.000 description 8
- 239000003349 gelling agent Substances 0.000 description 6
- 239000003350 kerosene Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 208000010392 Bone Fractures Diseases 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- -1 ether alcohols Chemical class 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- 239000000080 wetting agent Substances 0.000 description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- XNLICIUVMPYHGG-UHFFFAOYSA-N pentan-2-one Chemical compound CCCC(C)=O XNLICIUVMPYHGG-UHFFFAOYSA-N 0.000 description 2
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- USQUOCZKEJSQHD-KVVVOXFISA-N (z)-octadec-9-enoic acid;sulfuric acid Chemical compound OS(O)(=O)=O.CCCCCCCC\C=C/CCCCCCCC(O)=O USQUOCZKEJSQHD-KVVVOXFISA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- VAXCXSDAWONRLI-UHFFFAOYSA-N 2,3-dihydroxypropyl hydrogen sulfate Chemical compound OCC(O)COS(O)(=O)=O VAXCXSDAWONRLI-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- JTXMVXSTHSMVQF-UHFFFAOYSA-N 2-acetyloxyethyl acetate Chemical compound CC(=O)OCCOC(C)=O JTXMVXSTHSMVQF-UHFFFAOYSA-N 0.000 description 1
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- HCGFUIQPSOCUHI-UHFFFAOYSA-N 2-propan-2-yloxyethanol Chemical compound CC(C)OCCO HCGFUIQPSOCUHI-UHFFFAOYSA-N 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 208000003044 Closed Fractures Diseases 0.000 description 1
- BCKXLBQYZLBQEK-KVVVOXFISA-M Sodium oleate Chemical compound [Na+].CCCCCCCC\C=C/CCCCCCCC([O-])=O BCKXLBQYZLBQEK-KVVVOXFISA-M 0.000 description 1
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- BTANRVKWQNVYAZ-UHFFFAOYSA-N butan-2-ol Chemical compound CCC(C)O BTANRVKWQNVYAZ-UHFFFAOYSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 150000004292 cyclic ethers Chemical class 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/32—Preventing gas- or water-coning phenomena, i.e. the formation of a conical column of gas or water around wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
Definitions
- the zone around the well bore sometimes develops a condition of reduced permeability which results in a decrease in production of hydrocarbon from the well.
- One cause of this reduced permeability is the accumulation of water in the producing formation in the region adjacent the well bore.
- This water accumulation conventionally designated water block
- This water accumulation may be due to injected water, as from drilling or workover operations or to interstitial water gradually appearing around the Well bore.
- One method commonly proposed for the removal of such a water block comprises injecting into the blocked stratum a water-miscible solvent, With or without certain additives, to effect solubilization and displacement of the water.
- this method is rather ineffective in most instances in view of the fact that the proposed technique displaces the water in the water block deeper into the formation. Later when production is resumed the water returns to block the well again.
- This invention is concerned with a method of effectively overcoming the water block problem.
- a broad aspect of the invention comprises fracturing the hydrocarbon-bearing stratum around a production well bore with a water-miscible liquid solvent without a propping agent in the fracturing fluid by injecting the fracturing fluid into the well at sufficient pressure within the stratum to be fractured so as to effect partition and fracturing of the stratum and injection of the fracturing fluid solvent into the stratum beyond the water block so that the solvent spreads into the porous stratum behind the water in the block, whereupon the injection pressure is reduced so that the fracture(s) closes and traps the solvent in the stratum behind the water block.
- the well is then opened to production so that the fluid pressure toward the producing well, with the aid of the solvent, flushes the water into the well and same is recovered in the produced fluids, thereby eliminating or at least alleviating the detrimental effect of the water block.
- the solvent is unable to return through the closed fracture and the resumption of hydrocarbon production causes the solvent to be forced toward the well bore through other portions of the water-blocked formation, thereby displacing the water into the well and thus removing the water block.
- Water-miscible solvents suitable for use in the process include ketones such as acetone, methyl ethyl ketone, methyl prOPYl ketone, diethyl ketone, etc.; alcohols such as ethanol, methanol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, secondary-butyl alcohol; ethers, partic- 3,285,341 Patented Nov.
- ether alcohols such as methyl Cellosolve, Cellosolve, isopropyl Cellosolve, the carbitols, etc.
- esters such as butyl acetate, glycol diacetate, carbitol acetates, and Cellosolve acetates.
- Most of the foregoing solvents are both oil and water soluble and have a favorable effect on the stratum containing water and oil.
- Other solvents conventionally used in the art are operable in the process.
- the injected solvent may also contain surfactants or Wetting agents in small concentration such as about one weight percent of the solvent, more or less than this amount being useful.
- surfactants or wetting agents such as the amines, trimethylamine or triethanolamine; esters including naphthalene sulphonic ester, oleic acid sulphate, oleo glyceryl sulphate; sulphonated oils such as sulphonated castor oil; or alkyl sulphates such as those commercially known as Gardinols.
- Other sulphates or wetting agents may also be used in the process.
- the solvent may be treated with a gelling agent so that fracturing can be achieved at relatively low pumping rates.
- a gelling agent for use in fracturing fluids conventional in the art are applicable.
- Commonly utilized gelling agents include fatty acid soaps such as sodium stearate and sodium oleate.
- kerosene it is also feasible to dilute the solvent with a less expensive solvent such as kerosene.
- a less expensive solvent such as kerosene.
- the injection of a mixture of kerosene and watermiscible solvent is less expensive and the kerosene additive has a beneficial effect in flushing hydrocarbons from the stratum when production is resumed.
- Other light hydrocarbons may be utilized in lieu of or in admixture with kerosene.
- the hydrocarbon portion of the injected fluid should be in the range of about 10 to 60 percent of the injected fluid.
- the amount of solvent to be injected depends upon the extent of the water block outward radially from the well bore and vertically in the stratum. The amount used is generally in the range of 1 to 10 percent of the pore volume occupied by the water block. In any case sufficient solvent should be injected to occupy an annular zone along the outward fringe of the water block and this annular zone should have a radial depth of at least 6 inches to a foot or more.
- a process for removing water block around a producing well in a hydrocarbon-bearing stratum and producing hydrocarbons from said well comprising the steps of:
- step (1) continuing injection of said solvent thru the fracture resulting from step (1) so as to deposit a substantial pore volume of same in the permeable stratum behind said water block;
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
United States Patent 3,285,341 REMOVAL OF WATER BLOCKS FROM OIL AND GAS WELLS Harry W. Parker, Bartlesville, Okla., assignor to Phrlhps Petroleum Company, a corporation of Delaware No Drawing. Filed Dec. 2, 1963, Ser. No. 327,513 7 Claims. (Cl. 166-42) This invention relates to a process for removing a water block around a hydrocarbon-producing well.
In the production of oil and gas from a producing well in a hydrocarbon-bearing stratum, the zone around the well bore sometimes develops a condition of reduced permeability which results in a decrease in production of hydrocarbon from the well. One cause of this reduced permeability is the accumulation of water in the producing formation in the region adjacent the well bore. This water accumulation, conventionally designated water block," may be due to injected water, as from drilling or workover operations or to interstitial water gradually appearing around the Well bore. One method commonly proposed for the removal of such a water block comprises injecting into the blocked stratum a water-miscible solvent, With or without certain additives, to effect solubilization and displacement of the water. However, this method is rather ineffective in most instances in view of the fact that the proposed technique displaces the water in the water block deeper into the formation. Later when production is resumed the water returns to block the well again.
This invention is concerned with a method of effectively overcoming the water block problem.
Accordingly it is an object of the invention to provide an effective process for removing a water block around a hydrocarbon-producing well. Another object is to provide a process which alleviates water block and which increases the production of hydrocarbons from a well. Other objects of the invention will become apparent upon consideration of the accompanying disclosure.
A broad aspect of the invention comprises fracturing the hydrocarbon-bearing stratum around a production well bore with a water-miscible liquid solvent without a propping agent in the fracturing fluid by injecting the fracturing fluid into the well at sufficient pressure within the stratum to be fractured so as to effect partition and fracturing of the stratum and injection of the fracturing fluid solvent into the stratum beyond the water block so that the solvent spreads into the porous stratum behind the water in the block, whereupon the injection pressure is reduced so that the fracture(s) closes and traps the solvent in the stratum behind the water block. The well is then opened to production so that the fluid pressure toward the producing well, with the aid of the solvent, flushes the water into the well and same is recovered in the produced fluids, thereby eliminating or at least alleviating the detrimental effect of the water block. Once the fracture is closed, the solvent is unable to return through the closed fracture and the resumption of hydrocarbon production causes the solvent to be forced toward the well bore through other portions of the water-blocked formation, thereby displacing the water into the well and thus removing the water block.
Water-miscible solvents suitable for use in the process include ketones such as acetone, methyl ethyl ketone, methyl prOPYl ketone, diethyl ketone, etc.; alcohols such as ethanol, methanol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, secondary-butyl alcohol; ethers, partic- 3,285,341 Patented Nov. 15, 1966 ularly cyclic ethers, dioxane, tetramethylene oxide, furan, etc.; ether alcohols, such as methyl Cellosolve, Cellosolve, isopropyl Cellosolve, the carbitols, etc.; and esters such as butyl acetate, glycol diacetate, carbitol acetates, and Cellosolve acetates. Most of the foregoing solvents are both oil and water soluble and have a favorable effect on the stratum containing water and oil. Other solvents conventionally used in the art are operable in the process. The injected solvent may also contain surfactants or Wetting agents in small concentration such as about one weight percent of the solvent, more or less than this amount being useful. Any well known surfactants or wetting agents may be utilized such as the amines, trimethylamine or triethanolamine; esters including naphthalene sulphonic ester, oleic acid sulphate, oleo glyceryl sulphate; sulphonated oils such as sulphonated castor oil; or alkyl sulphates such as those commercially known as Gardinols. Other sulphates or wetting agents may also be used in the process.
In some applications of the process, the solvent may be treated with a gelling agent so that fracturing can be achieved at relatively low pumping rates. Any conventional gelling agent for use in fracturing fluids conventional in the art are applicable. Commonly utilized gelling agents include fatty acid soaps such as sodium stearate and sodium oleate. When using a gelling agent only an initial slug of the solvent containing the gelling agent is injected to initiate the fracturing after which the injected solvent free of gelling agent fol-lows the gelled solvent to the stratum.
It is also feasible to dilute the solvent with a less expensive solvent such as kerosene. The injection of a mixture of kerosene and watermiscible solvent is less expensive and the kerosene additive has a beneficial effect in flushing hydrocarbons from the stratum when production is resumed. Other light hydrocarbons may be utilized in lieu of or in admixture with kerosene. The hydrocarbon portion of the injected fluid should be in the range of about 10 to 60 percent of the injected fluid.
The amount of solvent to be injected depends upon the extent of the water block outward radially from the well bore and vertically in the stratum. The amount used is generally in the range of 1 to 10 percent of the pore volume occupied by the water block. In any case sufficient solvent should be injected to occupy an annular zone along the outward fringe of the water block and this annular zone should have a radial depth of at least 6 inches to a foot or more.
Certain modifications of the invention will become apparent to those skilled in the art and the illustrative details disclosed are not to be construed as imposing unnecessary limitations on the invention.
I claim:
1. A process for removing water block around a producing well in a hydrocarbon-bearing stratum and producing hydrocarbons from said well, comprising the steps of:
(1) fracturing said stratum outwardly from said well by injecting a water-miscible solvent free of propping agent into said stratum at fracturing pressure so as to fracture said stratum to an area behind said water block;
(2) continuing injection of said solvent thru the fracture resulting from step (1) so as to deposit a substantial pore volume of same in the permeable stratum behind said water block;
(3) thereafter, reducing the injection pressure so as to allow the formed fractures to close and trap said 3 solvent in the stratum behind said water block; and (4) thereafter, opening said well to production and producing hydrocarbons therefrom so as to cause said solvent to flush water of said block into said well.
2. The process of claim 1 wherein a normally liquid hydrocarbon is mixed with said solvent.
3. The process of claim 1 wherein a slug of gelled solvent is injected followed by injection of ungelled solvent.
4. The process of claim 1 wherein a surfactant is incorporated in said solvent.
5. The process of claim 1 wherein kerosene is admixed with said solvent.
'6. The process of claim 1 wherein said solvent is an alcohol of 1 to 4 carbon atoms.
7. The process of claim 1 wherein said solvent is a ketone.
References Cited by the Examiner UNITED STATES PATENTS CHARLES E. OCONNELL, Primary Examiner. JACOB L. NACKENOFF, Examiner. I. A. LEPPINK, Assistant Examiner.
Claims (1)
1. A PROCESS FOR REMOVING WATER BLOCK AROUND A PRODUCING WELL IN A HYDROCARBON-BEARING STRATUM AND A PRODUCING HYDROCARBONS FROM SAID WELL, COMPRISING THE STEPS OF: (1) FRACTURING SAID STRATUM OUTWARDLY FROM SAID WELL BY INJECTING A WATER-MISCIBLE SOLVENT FREE OF PROPPING AGENT INTO SAID STRATUM AT FRACTURING PRESSURE SO AS TO FRACTURE SAID STRATUM TO AN AREA BEHIND SAID WATER BLOCK; (2) CONTINUING INJECTION OF SAID SOLVENT THRU THE FRACTURE RESULTING FROM STEP (1) SO AS TO DEPOSIT A SUBSTANTIAL PORE VOLUME OF SAME IN THE PERMEABLE STRATUM BEHIND SAID WATER BLOCK; (3) THEREAFTER, REDUCING THE INJECTION PRESSURE SO AS TO ALLOW THE FORMED FRACTURES TO CLOSE AND TRAP SAID SOLVENT IN THE STRATUM BEHIND SAID WATER BLOCK; AND (4) THEREAFTER, OPENING SAID WELL TO PRODUCTION AND PRODUCING HYDROCARONS THEREFROM SO AS TO CAUSE SAID SOLVENT TO FLUSH WATER OF SAID BLOCK INTO SAID WELL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US327513A US3285341A (en) | 1963-12-02 | 1963-12-02 | Removal of water blocks from oil and gas wells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US327513A US3285341A (en) | 1963-12-02 | 1963-12-02 | Removal of water blocks from oil and gas wells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3285341A true US3285341A (en) | 1966-11-15 |
Family
ID=23276840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US327513A Expired - Lifetime US3285341A (en) | 1963-12-02 | 1963-12-02 | Removal of water blocks from oil and gas wells |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3285341A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3470958A (en) * | 1968-03-12 | 1969-10-07 | Marathon Oil Co | Well stimulation with hydrophilic fluids |
| US3630285A (en) * | 1970-05-22 | 1971-12-28 | Amoco Prod Co | Acidizing high-temperature wells |
| US4560003A (en) * | 1982-09-20 | 1985-12-24 | Mobil Oil Corporation | Solvent stimulation in heavy oil wells producing a large fraction of water |
| US20060243442A1 (en) * | 2005-04-29 | 2006-11-02 | Halliburton Energy Services, Inc. | Methods and compositions for enhancing hydrocarbon production |
| WO2014160525A3 (en) * | 2013-03-14 | 2015-04-23 | Howard University | Gelling nanofluids for dispersion stability |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2779418A (en) * | 1954-05-10 | 1957-01-29 | Stanolind Oil & Gas Co | Method of increasing production from wells |
| US2851105A (en) * | 1956-10-31 | 1958-09-09 | Pan American Petroleum Corp | Method for removing water from oil sands |
| US2865453A (en) * | 1956-10-09 | 1958-12-23 | Texas Co | Well treatment to remove a water block |
| US2975835A (en) * | 1957-11-07 | 1961-03-21 | Pure Oil Co | Bacteriological method of oil recovery |
-
1963
- 1963-12-02 US US327513A patent/US3285341A/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2779418A (en) * | 1954-05-10 | 1957-01-29 | Stanolind Oil & Gas Co | Method of increasing production from wells |
| US2865453A (en) * | 1956-10-09 | 1958-12-23 | Texas Co | Well treatment to remove a water block |
| US2851105A (en) * | 1956-10-31 | 1958-09-09 | Pan American Petroleum Corp | Method for removing water from oil sands |
| US2975835A (en) * | 1957-11-07 | 1961-03-21 | Pure Oil Co | Bacteriological method of oil recovery |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3470958A (en) * | 1968-03-12 | 1969-10-07 | Marathon Oil Co | Well stimulation with hydrophilic fluids |
| US3630285A (en) * | 1970-05-22 | 1971-12-28 | Amoco Prod Co | Acidizing high-temperature wells |
| US4560003A (en) * | 1982-09-20 | 1985-12-24 | Mobil Oil Corporation | Solvent stimulation in heavy oil wells producing a large fraction of water |
| US20060243442A1 (en) * | 2005-04-29 | 2006-11-02 | Halliburton Energy Services, Inc. | Methods and compositions for enhancing hydrocarbon production |
| US7316273B2 (en) * | 2005-04-29 | 2008-01-08 | Halliburton Energy Services, Inc. | Methods and compositions for enhancing hydrocarbon production |
| WO2014160525A3 (en) * | 2013-03-14 | 2015-04-23 | Howard University | Gelling nanofluids for dispersion stability |
| US9840679B2 (en) | 2013-03-14 | 2017-12-12 | Howard University | Gelling nanofluids for dispersion stability |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2262428A (en) | Process for the treatment of oil or gas wells | |
| US3368624A (en) | Control of gas-oil ratio in producing wells | |
| US3342261A (en) | Method for recovering oil from subterranean formations | |
| CN105505360B (en) | A kind of fluoboric acid de-plugging agent and acidification method for removing blockage | |
| US2059459A (en) | Method of treating wells with acids | |
| US3382924A (en) | Treatment of earthen formations comprising argillaceous material | |
| US2094479A (en) | Treatment of wells | |
| US3819520A (en) | Mixed alcohols in well acidizing | |
| US3342256A (en) | Method for recovering oil from subterranean formations | |
| US3163214A (en) | Solvent-waterflood oil recovery process | |
| US4807703A (en) | Fracture acidizing sandstone formations | |
| US3311167A (en) | Secondary recovery technique | |
| US20180215992A1 (en) | Delayed breaker for viscoelastic surfactant-based fluids | |
| EA004514B1 (en) | Well treatment composition and method of hydraulically fracturing a coal bed | |
| US3568772A (en) | Well stimulation with micellar dispersions | |
| US2645291A (en) | Hydraulically fracturing well formation | |
| US2345713A (en) | Method for improving oil wells | |
| EP2984148A1 (en) | Method for hydraulically fracturing a subterranean formation using aluminium particles | |
| CN110273671B (en) | A method for compound injection of micro-acid fracturing in offshore high-porosity and high-permeability reservoirs | |
| US3285341A (en) | Removal of water blocks from oil and gas wells | |
| US3654991A (en) | Fracturing method | |
| US2776010A (en) | Sealing porous earth stratum | |
| US4485871A (en) | In-situ process for recovering hydrocarbons from a diatomite-type formation | |
| US3637015A (en) | Method for improving the injectivity of brine into water injection wells | |
| US3207218A (en) | Use of foam for plugging gas producing strata |