1
Templeton Charles C, Street Jr Evan H, Richardson Edwin A: Dissolving siliceous materials with self-acidifying liquid. Shell Oil Company, Coryell Howard W, August 13, 1974: US3828854 (167 worldwide citation)

Siliceous materials in or around a well are dissolved by contacting them with a self-acidifying aqueous liquid system comprising an aqueous solution of at least one water-soluble fluoride salt mixed with a relatively slowly-reactive acid-yielding material that subsequently converts the salt solution ...


2
Lybarger James H, Scheuerman Ronald F, Karnes George Thomas: Self-acidifying treating fluid positioning process. Shell Oil Company, March 4, 1975: US3868998 (153 worldwide citation)

The positioning of a treating fluid such as an acidifying or particle-carrying fluid, in a subterranean location is improved by injecting a viscous aqueous solution that contains a cellulose ether, a fluoride salt and a relatively slowly reactive acid-yielding material, and subsequently becomes a su ...


3
Weaver Jim D, Nguyen Philip D, Stanford James R, Bowles Bobby K, Wilson Steven F, Parker Mark A, Dewprashad Brahmadeo: Method of controlling fine particulate flowback in subterranean wells. Halliburton Energy Serv, November 25, 1998: EP0879935-A2 (136 worldwide citation)

A wellbore penetrating a subterranean formation is treated with a fluid whereby fine particulate flowback is reduced or prevented. The method includes the steps of providing a fluid suspension including a mixture of a particulate coated with a tackifying compound, pumping the suspension into a subte ...


4
Tiner Robert L, Holtmyer Marlin D, King Bobby J, Gatlin Richard A: Method and compositions for fracturing well formations. Halliburton Company, Weaver Thomas R, Tregoning John H, June 10, 1975: US3888312 (131 worldwide citation)

A crosslinked aqueous gel useful for fracturing and placing propping agents within a subterranean formation is disclosed. The gel has a high viscosity in said formation and has pumping characteristics in turbulent flow similar to those of water.


5
Graham John W: Hydraulic fracturing using reinforced resin pellets. Esso Production Research Company, May 2, 1972: US3659651 (116 worldwide citation)

Fractures in a subterranean formation are propped with propping agent particles composed of a synthetic resin substantially inert to formation fluids and containing reinforcing materials dispersed therein.


6
Cooke Jr Claude E: Hydraulic fracturing method. Exxon Production Research Company, Graham Robert L, June 10, 1975: US3888311 (113 worldwide citation)

A method of fracturing subterranean formations which employs propping agent particles composed of resin-filled or fiber-reinforced cement pellets or resin-filled clinker.


7
Graham John Wayne, Muecke Thomas Wayne, Cooke Jr Claude Everett: Method for treating subterranean formations. Exxon Production Research Company, Graham Robert L, December 30, 1975: US3929191 (105 worldwide citation)

Particles coated with a solid, fusible resin are placed in a subterranean formation. At formation conditions, the resin first melts or softens, and then cures to an insoluble, infusible state. This bonds the particles together forming a permeable, self-sustaining structure in or adjacent the formati ...


8
Gall James W: Subterranean formation permeability correction. Phillips Petroleum Company, October 2, 1973: US3762476 (94 worldwide citation)

A method for reducing the quantity of water recovered from a subterranean formation which is penetrated by at least one well bore wherein the formation permeability to water is corrected, yielding prolonged mobility control and/or plugging, achieved through injecting aqueous polymer solutions inters ...


9
Knox John A, Fredrickson Sherman E: Method of fracture acidizing a well formation. Halliburton Company, October 30, 1973: US3768564 (82 worldwide citation)

The present invention relates to an improved method of fracture acidizing underground well formations so that the production of oil and gas therefrom is increased. By the method of the present invention high capacity flow channels are created and sustained in the formation, particularly in the area ...


10
Snavely Jr Earl S, Bertness Theodore A: Petroleum production by steam injection. Mobil Oil Corporation, Huggett C A, Ehrlich Henry L, November 11, 1975: US3918521 (76 worldwide citation)

This specification discloses a method of producing petroleum from a petroleum-bearing formation. A heated fluid is generated in a heated fluid generator that is fired with a sulfur-containing fuel and the heated fluid is injected into the petroleum-bearing formation and petroleum is produced therefr ...