1
Willberg Dean, Dismuke Keith: Self-destructing filter cake. Schlumberger Canada, Services Petroliers Schlumberger, Schlumberger Holdings, Schlumberger Technology, Sofitech, MENES Catherine, May 6, 2004: WO/2004/037946 (90 worldwide citation)

A composition and method are given for self-destructive fluid loss additives and filter cakes in wellbores and subterranean formations. The fluid loss additives and filter cakes are formed from a mixture of particulate solid acid-precursors, such as a polylactic acid or a polyglycolic acid, and part ...


2
Willberg Dean Michael, Carlson James G, Kadoma Ignatius A, Wu Yong K, Crandall Michael D: Methods of contacting and/or treating a subterranean formation. Schlumberger Canada, Services Petroliers Schlumberger, Schlumberger Holdings, Schlumberger Technology, Prad Research And Development, 3M Innovative Properties Company, Willberg Dean Michael, Carlson James G, Kadoma Ignatius A, Wu Yong K, Crandall Michael D, WENDT Jeffrey L, June 25, 2009: WO/2009/079231 (7 worldwide citation)

Methods of contacting a subterranean formation are described which provide improved control or reduction of particulate migration, transport or flowback in wellbores and reservoirs, and which may do so without sacrificing substantial hydraulic conductivity. One method comprises injecting into a well ...


3
Cooper Iain, Willberg Dean M, Miller Matthew J: Real-time automated heterogeneous proppant placement. Schlumberger Canada, Services Petroliers Schlumberger, Schlumberger Holdings, Schlumberger Technology, Prad Research And Development, Cooper Iain, Willberg Dean M, Miller Matthew J, CATE David, June 26, 2008: WO/2008/075242 (6 worldwide citation)

A system and a method for heterogeneous proppant placement in a fracture (12) in a subterranean formation (18) are disclosed. The system includes a delivery system (10) for delivering proppant and treatment fluid to the fracture (12), a sensor (20) for measuring geometry of the fracture and a comput ...


4
Willberg Dean M, Nelson Erik, Frenier Wayne: Proppants useful for prevention of scale deposition. Schlumberger Canada, Services Petroliers Schlumberger, Schlumberger Holdings, Schlumberger Technology, Willberg Dean M, Nelson Erik, Frenier Wayne, CATE David, December 7, 2006: WO/2006/129258 (6 worldwide citation)

Proppants for treating subterranean which are scale resistant as well as fluids containing and methods of using such proppants. The proppant materials are less susceptible to fouling by residual materials in the fracturing or gravel pack fluid and hence may have improved clean-up compared with conve ...


5
Willberg Dean M, Fredd Christopher N, Bulova Marina, Hoefer Ann Mw, Sullivan Philip F: Degradable fiber systems for stimulation. Schlumberger Canada, Services Petroliers Schlumberger, Schlumberger Holdings, Schlumberger Technology, Prad Research And Development, Willberg Dean M, Fredd Christopher N, Bulova Marina, Hoefer Ann Mw, Sullivan Philip F, MITCHELL Thomas, December 28, 2006: WO/2006/137002 (5 worldwide citation)

A method for minimizing the amount of metal crosslinked viscosifier necessary for treating a wellbore with proppant or gravel is given. The method includes using fibers to aid in transporting, suspending and placing proppant or gravel in viscous carrier fluids otherwise having insufficient viscosity ...


6
Willberg Dean, Miller Matthew, Kosarev Ivan Vitalievich, Thiercelin Marc: Method for hydraulic fracturing of subterranean formation. Schlumberger Technology, Willberg Dean, Miller Matthew, Kosarev Ivan Vitalievich, Thiercelin Marc, LAW FIRM GORODISSKY EGOROVA Galina MITS Alexander BSpasskaya str 25 stroenie 3 Moscow 129010, August 2, 2007: WO/2007/086771 (4 worldwide citation)

The invention provides economically effective methods for hydraulic fracturing a subterranean formation that ensure improvement of the hydraulic fractureconductivity because of forming strong proppant clusters uniformly placed in the fracture throughout its length. One of these methods comprises: a ...


7
Willberg Dean Michael, Carlson James G, Kadoma Ignatius A, Wu Yong K, Crandall Michael D: Methods of treating subterranean wells using changeable additives. Schlumberger Canada, Services Petroliers Schlumberger, Schlumberger Holdings, Schlumberger Technology, Prad Research And Development, 3M Innovative Properties Company, Willberg Dean Michael, Carlson James G, Kadoma Ignatius A, Wu Yong K, Crandall Michael D, WENDT Jeffrey L, June 25, 2009: WO/2009/079234 (2 worldwide citation)

Fluid compositions and methods of making and using same are described, one composition comprising a well treatment fluid and an additive combined with the well treatment fluid, wherein the additive is selected from solids, liquids and combinations thereof, the additive having a surface shape, at lea ...


8
Willberg Dean, Dismuke Keith: Self-destructing filter cake. Schlumberger Services Petrol, Schlumberger Holdings, Schlumberger Technology, Sofitech, July 27, 2005: EP1556458-A1 (2 worldwide citation)

An acid fracturing method is provided in which the acid is generated in the fracture by hydrolysis of a solid acid-precursor selected from one or more than one of lactide, glycolide, polylactic acid, polyglycolic acid, a copolymer of polylactic acid and polyglycolic acid, a copolymer of glycolic aci ...


9
Barmatov Evgeny Borisovich, Eskin Dmitry Isaakovich, Willberg Dean, Miller J Matthew: Proppant flowback control using encapsulated adhesive materials. Barmatov Evgeny Borisovich, Eskin Dmitry Isaakovich, Willberg Dean, Miller J Matthew, Schlumberger Canada, Services Petroliers Schlumberger, Schlumberger Holdings, Schlumberger Technology, Prad Research And Development, PROKOFIEVA Zhanna Sergeevna, June 25, 2009: WO/2009/078745 (2 worldwide citation)

The present Invention relates generally to the field of petroleum production. More specifically, the present Invention relates to a method for stimulation of reservoirs for fluid production. A method of treating a subterranean formation includes the initial stage, wherein a fracture is propped with ...


10
Willberg Dean, Miller Matthew, Kosarev Ivan Vitalievich, Thiercelin Marc: Method for hydraulic fracturing of subterranean formation. Schlumberger Technology, October 8, 2008: EP1977079-A1 (2 worldwide citation)

The invention provides economically effective methods for hydraulic fracturing a subterranean formation that ensure improvement of the hydraulic fractureconductivity because of forming strong proppant clusters uniformly placed in the fracture throughout its length. One of these methods comprises: a ...