101 |
Method of consolidating a subterranean formation |
US878631 |
1978-02-17 |
US4137971A |
1979-02-06 |
Christopher M. Shaughnessy; William M. Salathiel |
A method of preventing the failure of a sand consolidation treatment due to contamination of the resinous material with aqueous rathole fluids during injection is described. The method involves displacing the aqueous rathole fluids with a dense, nonaqueous liquid prior to introducing the resinous material into the formation. |
102 |
Crystal modified deposition of hydrated metal oxide |
US574770 |
1975-05-05 |
US3997452A |
1976-12-14 |
Edwin A. Richardson; John A. Herce |
A treating liquid for depositing a coating of hydrated metal oxide on a remotely located material (such as a subterranean sand mass to be consolidated) is improved by a crystal modifier. The improved treating liquid comprises an aqueous alkaline solution of an amphoteric metal compound, a pH-reducing reactant, and a hydroxyorganic crystal modifier. |
103 |
Well completion method for controlling sand production |
US586843 |
1975-06-13 |
US3987850A |
1976-10-26 |
John L. Fitch |
This specification discloses a method of completing a well that penetrates a subterranean formation. The formation is vertically fractured and a lower portion of the fracture is propped by hydraulic fracturing techniques leaving an overlying unpropped portion of the fracture. The well is treated to block the communication of the unpropped portion of the fracture with the well. |
104 |
Sand control method employing asphaltenes |
US553417 |
1975-02-26 |
US3951210A |
1976-04-20 |
Ching H. Wu; Alfred Brown; Daniel T. Konopnicki |
This invention relates to a method for treating wells completed in subterranean formations which contain unconsolidated sand particles, so as to form a permeable barrier which will permit the flow of liquids therethrough while restraining the flow of the unconsolidated sand particles into the well bore. The method comprises saturating sand adjacent the well bore to be treated with petroleum having a high asphaltic content and optionally thereafter contacting the asphaltic petroleum with a solvent capable of solubilizing non-asphaltic fractions of the petroleum and precipitating or causing deposition of the asphaltic or bituminous portions of the petroleum. A heated fluid such as steam is thereafter injected into the formation to cause solidification of the asphaltic materials which effectively binds the sand grains together to form a porous mass which will effectively restrain the movement of sand particles in the well bore upon subsequently placing the well on production. Suitable hydrocarbon materials for causing precipitation of the asphaltic or bituminous portions of the petroleum include liquid paraffinic hydrocarbons such as butane, pentane, or hexane, N-methyl-2-pyrrolidone and furfural. Steam or a mixture of steam and non-condensable gas such as nitrogen, or mixture of steam and air are then injected into the formation to dehydrate and otherwise solidify the precipitated asphaltic material. |
105 |
Method for stabilizing incompetent sand containing formations |
US42942773 |
1973-12-28 |
US3861468A |
1975-01-21 |
CURTICE BEVERLY A; HUGHES JAMES W |
The present invention relates to an improved method of treating underground formations. More particularly, this invention is directed to an improved method of treating permeable underground unconsolidated sand-containing formations and particularly oil and/or gas-containing unconsolidated sand formations to stabilize the sandy portion thereof and to an improved aqueous carrier fluid for a treating composition useful in the stabilization of such incompetent sand containing underground formations.
|
106 |
Permeable cementing method |
US42942673 |
1973-12-28 |
US3861467A |
1975-01-21 |
HARNSBERGER BOBBY G |
The invention relates to an improved method of and composition for the treatment of an incompetent formation penetrated by a wellbore to prevent the movement of sand particles from the formation to the wellbore during recovery of the formation fluids by forming a treating composition of sand, cement, water and xanthan gum in a hydrocarbon carrier oil, injecting the treating composition into the formation under pressure, permitting the cement to set and form a permeable barrier film between the formation and wellbore and recovering fluids from the formation through the formed permeable cement barrier.
|
107 |
Wellbore gravel pack method |
US3800875D |
1971-10-18 |
US3800875A |
1974-04-02 |
HARDY W; SHEPARD J; SCHULTZE E |
Methods of gravel packing are disclosed utilizing controlled melting point materials with the gravel placed behind a liner located in the wellbore. The controlled melting point materials can be coated on the gravel prior to its placement behind the liner or circulated behind the liner separate from the gravel. After placement of the gravel and controlled melting point material behind the liner, heat is provided to melt the material so that it acts as a consolidating agent.
|
108 |
Sand consolidation by adhesive agent and particulate pack |
US3800847D |
1973-07-20 |
US3800847A |
1974-04-02 |
RIKE J |
The flow of sand into a well is controlled by injecting into the producing zone a sand consolidation adhesive agent which will cause consolidation of the sand particles by sticking one to another, and forcing a particulate material into the producing zone after the injection of the sand consolidation adhesive agent, and producing through the consolidated sand and particulate material. A screen may be placed in the particulate material or above the particulate material to aid in mechanically supporting the particulate material and holding the particulate pack in place. The method for controlling the flow of sand into a well is especially suitable for a cased well which has been perforated and provides an essentially fail safe consolidation method.
|
109 |
Method and apparatus for treating selected reservoir portions |
US3765484D |
1972-06-02 |
US3765484A |
1973-10-16 |
HAMBY T; BROUSSARD L |
Selected portions of a subterranean reservoir are treated by seating a packer that forms a slideable seal above a perforated section of well casing and repetitively sealing and moving a depth-straddling sealing device to isolate and treat perforations that open into individual portions of the reservoir, while maintaining the slideable seal and a borehole fluid pressure that substantially equals the formation fluid pressure during the movement of the depth-straddling sealing devices.
|
110 |
Plating expanded boreholes |
US3709299D |
1971-01-07 |
US3709299A |
1973-01-09 |
SUMAN G; TORREST R; MURPHEY C; RICHARDSON E |
A well treatment method for consolidating an incompetent material in and/or around a borehole which includes the steps of hydraulically expanding a selected interval of the borehole opposite an unconsolidated formation by injecting a fluid into the interval at a fluid injection pressure less than, but approaching, the formation fracturing pressure and then injecting into the formation at substantially the same injection pressure a fluid containing electroless metal plating components the reaction products of which form a metal plating on the incompetent material.
|
111 |
Gravel pack method |
US3695355D |
1970-01-16 |
US3695355A |
1972-10-03 |
WOOD DONALD B; KIEL OTHAR M |
A gravel packing method wherein a viscous fluid is injected into an unconsolidated formation at such a rate and pressure to form a cavity therein and a specially graded aggregate is pressure packed in the cavity to form an outer sand exclusion zone and an inner high permeability zone. The high permeability of the inner zone permits the passage of for-mation fines which escape the sand exclusion zone.
|
112 |
Fracturing method |
US3654992D |
1970-06-19 |
US3654992A |
1972-04-11 |
HARNSBERGER BOBBY G; PAYTON JOY T |
An improved method of fracturing an underground fluid bearing formation penetrated by a well bore for the production of fluids therefrom by injecting a composition capable of forming a fluid permeable barrier in said formation at a pressure sufficient to form fissures therein extending from said well bore, and thereafter maintaining pressure on the composition for a predetermined period to permit the composition to set and form a fluid permeable barrier in the formed fissures.
|
113 |
Fracturing method |
US3654991D |
1970-06-19 |
US3654991A |
1972-04-11 |
HARNSBERGER BOBBY G; PAYTON JOY T |
An improved method of fracturing an underground fluid bearing formation penetrated by a well bore for the production of fluids therefrom by injecting a composition comprising cement, sand and oil, capable of forming a fluid permeable barrier in said formation at a pressure sufficient to form fissures therein extending from said well bore, and thereafter maintaining pressure on the composition for a predetermined period to permit the composition to set and form a fluid permeable barrier in the formed fissures.
|
114 |
Method and compositions for stabilizing incompetent oil-containing formations |
US3646998D |
1970-06-08 |
US3646998A |
1972-03-07 |
CURTICE BEVERLY A; HARNSBERGER BOBBY G |
Improved method of and compositions for the treatment of an oilcontaining incompetent formation to prevent the movement of unconsolidated sand particles in an underground formation by forming a treating composition of sand, cement, silica flour, and a sufficient amount of petroleum oil fraction containing an oilwetting agent therein to oil-wet the sand, cement, and silica flour particles, suspending the resulting treating composition in an aqueous carrier medium, injecting the aqueous suspension against the unconsolidated formation at a pressure effective to force the treating composition into contact with the unconsolidated formation, contacting the placed treating composition with an aqueous surface active agent solution to water wet the cement particles, permitting the cement to set and form a permeable cement and recovering oil through the cement.
|
115 |
Method and composition for stabilizing incompetent sand containing forma-tions |
US27271D |
1970-02-25 |
USRE27271E |
1972-01-11 |
|
COMPOSITION AND METHOD OF TREATING AN OIL-CONTAINING INCOMPETENT FORMATION TO PREVENT THE MOVEMENT OF UNCONSOLIDATED SAND PARTICLES IN A WELL BORE BY FORMING A (SLURRY) TREATING COMPOSITION OF SAN, CEMENT AND A SUFFICIENT AMOUNT OF A PETROLEUM OIL FRACTION CONTAINING AN OIL WETTING AGENT THEREIN TO OIL WET THE SAND AND CEMENT PARTICLES, SUSPENDING THE (OIL WET SAND AND CEMENT PARTICLES) FORMED TREATING COMPOSITION IN AN AQUEOUS CARRIER MEDIUM, INJECTING THE AQUEOUS SUSPENSION AGAINST THE UNCONSOLIDATED FORMATION AT A PRESSURE EFFECTIVE TO FORCE THE (SUSPENSION) TREATING COMPOSITION INTO CONTACT WITH THE UNCONSOLIDATED FORMATION, CONTACTING THE PLACED TREATING COMPOSITION (SUSPENSION) WITH AN AQUEOUS SURFACE ACTIVE AGENT SOLUTION TO WATER WET THE CEMENT PARTICLES, PERMITTING THE CEMENT TO SET AND FORM A PERMEABLE CEMENT AND RECOVERING OIL THROUGH THE CEMENT.
|
116 |
Methods for completing wells traversing earth formations |
US3627045D |
1970-03-02 |
US3627045A |
1971-12-14 |
LEBOURG MAURICE P |
This application discloses new and improved methods for completing wells having earth formations which are to be fractured, acidized, or treated for inhibiting the production of unconsolidated formation materials. In one manner of practicing the present invention, a tool string is arranged for suspension from a string of pipe and includes a well packer coupled to an elongated tubular member defining an enclosed chamber of a substantial volume and which is maintained at a reduced pressure by normally closed valves at the opposite ends of the chamber that are adapted to be selectively opened in succession. This tool string is then positioned in a cased well bore and the packer is set above a previously perforated interval traversing an earth formation which is to be treated. Once the packer is set to isolate the perforated interval from the well bore thereabove, the first of the two valves is selectively opened. Upon opening of the first valve, formation fluids will be suddenly exhausted into the reduced-pressure chamber for removing contaminants that may have previously entered the formation following the perforation of the casing so as to leave only uncontaminated formation materials immediately surrounding the perforations. Thereafter, the second valve is selectively opened for suddenly injecting pressured treating fluids from the supporting pipe string through the perforations and back into the adjacent earth formations.
|
117 |
Permeable cementing composition and method |
US27227D |
1970-02-25 |
USRE27227E |
1971-11-09 |
|
THE INVENTION RELATES TO A METHOD OF AND COMPOSITION FOR THE TREATMENT OF AN INCOMPETENT FORMATION PENETRATED BY A WELL BORE TO PREVENT THE MOVEMENT OF SAND PARTICLES FROM THE FORMATION TO THE WELL BORE DURING RECOVERY OF THE FORMATION FLUIDS BY FORMING A (SLURRY) TREATING COMPOSITION OF SAND, CEMENT AND WATER IN A HYDROCARBON CARRIER OIL, INJECTING THE (SLURRY) TREATING COMPOSITION INTO THE FORMATION UNDER PRESSURE, PERMITTING THE CEMENT TO SET AND FORM A PERMEABLE BARRIER (FILM) BETWEEN THE FORMATION AND WELL BORE AND RECOVERING FLUIDS FROM THE FORMATION THROUGH THE FORMED PERMEABLE CEMENT BARRIER.
|
118 |
Method for injecting fluids into underground formations having differing permeabilities |
US3580338D |
1969-08-06 |
US3580338A |
1971-05-25 |
SPARLIN DERRY D |
A method of simultaneously injecting fluids into adjacent sections of subterranean formations of diverse permeability. A slotted sleeve or mesh cylinder is positioned in the wellbore opposite the formation and sand providing a low permeability pack is deposited in the annulus between the wellbore wall and the sleeve. Sand size is selected to provide a sand pack of permeability less than the lowest permeability of the formation. The sand pack may be consolidated with a resin. Fluid is injected down the interior of the sleeve, through apertures in the sleeve, through the low permeability, sand-filled annulus into the formation. Flow of fluids into the formation is more evenly distributed over the length of the wellbore section.
|
119 |
Method of consolidating and producing a hydrocarbon-bearing formation |
US3522845D |
1968-02-28 |
US3522845A |
1970-08-04 |
BAUER CHARLES L |
|
120 |
Apparatus for well completion |
US3507340D |
1968-02-05 |
US3507340A |
1970-04-21 |
VOETTER ULRICH E |
|