Process for producing a high strength artificial (cast) stone wi

Details Process for producing a high strength artificial (cast) stone wi Process for producing a high strength artificial (cast) stone wi

1991-12-16

1993-08-03

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

252 8551, 521 92, 521187, 521188, 521 88, 521 90, C08J 900, C09K 300

Patent

active

052329550

ABSTRACT:
The invention relates to a process for producing a highstrength a furan stone with high permeability and filtering effect mainly for protecting deep-drilled wells yielding mineral oil, natural gas and water against getting choked by sand. A mixture comprising an artificial resin as a binding material containing a catalyzer for controlling duration of binding and pumpability and an assorted granular material of high-strength forming the skeleton and salt filling and increasing pore spaces is homogenized and pumped into the corresponding producing section of the well into the area to be protected. After hardening of the mixture salt is dissolved from the obtained artificial stone and a filtering effect is achieved without binding the grains of the reservoir rock. Due to the mechanical characteristics and controlled porosity of the obtained artificial stone rock-parts, mainly sand delivered by the yielded fluidum into the well will be retained. An artificial stone with filtering effect can be prepared and hardened on the surface which can be inserted into the well and may be used as a sand-filter or with a desired shape and size it can be used for ecological purposes or in the industry to filter liquids or gaseous media, resp.

REFERENCES:
"Inside Gravel Packing", Sand Control Handbook 2, Edition 1985, By G. Suman et al., pp. 42-50.
"Sand--Control Services and Technology", Composite Catalog of Oil Field Equipment and Services, 1988-1989, pp. 1164-1666.
"Part 1--When to apply control measures and why proper drilling and completion methods are critically important", Sand Control, World Oil, Nov. 1974, vol. 179, No. 6, By G. Suman, pp. 63-70.
"Part 2--Exclusive three-part report gives valuable data for evaluating and specifying completion fluids that will not damage sensitive wells", World Oil, Dec. 1974, vol. 179, No. 7, By G. Suman, pp. 55-62.
"Part 3--How to avoid poorly designed or plugged perforations that impair productivity and prevent effective sand control", World Oil, Jan. 1975, vol. 180, No. 1, By G. Suman, Jr., pp. 83-91.
"Part 4--New technology extends use of devices such as screens and gravel packs to problem areas with smaller, hard-to-hold sands", World Oil, Feb. 1, 1975, vol. 180, No. 2, By G. Suman, Jr., pp. 33-39.
"Part 5--Inside gravel packing", World Oil, Mar. 1975, vol. 180, No. 4, By G. Suman, Jr., pp. 67-76.
"Part 6--Open hole gravel packing", World Oil, Apr. 1975, vol. 180, No. 5, By G. Suman, Jr., pp. 75-80.
"Part 7--Consolidating formation sand by chemical methods requires precise application and careful fluid handling", World Oil, May 1975, vol. 180, No. 6, By G. Suman, Jr., pp. 75-83.
"Part 8--New testing methods can indicate how basic properties of unconsolidated sands change with type of fluid and applied loads", World Oil, Jun. 1975, vol. 180, No. 7, By G. Suman, Jr., pp. 49-52.

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