A method to provide a plurality of fractures in a subterranean formation includes providing an essentially horizontal wellbore in the subterranean formation and providing a casing in the essentially horizontal wellbore. The method also includes providing communication between an inside of the casing and the subterranean formation at a plurality of locations along the length of the horizontal wellbore and providing a mortar slurry within the casing. The method further includes initiating a plurality of fractures from the plurality of locations and propagating the plurality of fractures by adding mortar slurry to the wellbore. A pressure inside the casing within the subterranean formation is above a fracture opening pressure while the plurality of fractures is propagating.

A composition capable of setting to produce a cementitious material for use in re-mineralizing a fluid is provided. The composition includes a first magnesium-containing compound a second magnesium-containing compound, and water present in the composition in an amount sufficient such that the composition sets to a cementitious material.

A cohesive granular material comprises granules made of a stiff substance and having a grain size in the range from 55 m to 2.0 mm; an elastomeric substance connecting the granules, a Young's modulus of the elastomeric substance being at maximum 0.5 times a Young's modulus of the stiff substance; and voids between the granules, the voids being interconnected and providing a fluid permeability to the cohesive granular material.

A filter aid may include acid-washed diatomaceous earth having high purity, and perlite. A method of making a high purity filter aid may include acid washing diatomaceous earth to reduce the h in the diatomaceous earth, and combining the acid-washed diatomaceous earth with high purity perlite to obtain to obtain a high purity filter aid. A method of reducing extractable metals from diatomaceous earth may include washing the diatomaceous earth in a first acid, rinsing the diatomaceous earth, and washing the diatomaceous earth in a second acid. The first acid may include an inorganic acid having a first strength, and the second acid may include an organic acid having a second strength different than the first strength. A method of filtering a beverage may include passing the beverage through a filter including a filter aid including acid-washed diatomaceous earth having high purity, and perlite.

Embodiments of a system and a method for manufacturing a cementitious panel can be used to produce a cementitious panel having a multi-layer air/water barrier membrane assembly. The layers of the membrane can be built up via a series of applicator stations applying a fluid composition using roll coating, for example. Between applicator stations the applied layer of fluid composition can be subjected to drying conditions via infrared heating. To help protect from the deleterious effects of infrared heating, the cementitious panel can be conveyed through a cooling tunnel after each drying section.

An oil well cement composite permeation enhancement agent suitable for a hydrate layer and a preparation method thereof are disclosed. In parts by weight, the composition of raw materials of the composite permeation enhancement agent is 4.6 parts-5.0 parts of kerosene, 0.23 parts-0.25 parts of emulsifier, 0.8 parts-1.1 parts of modified polypropylene fiber, 10.0 parts-12.0 parts of porous and permeable microspheres, 1.0 part-1.2 parts of paraffin, and 57.5 parts-62.5 parts of water. The composite permeation enhancement agent can effectively improve the permeability of the cement stone which reshapes the formation framework and increase the mining rate of hydrate. The oil well cement composite permeation enhancement agent has the advantages of long-term performance, low cost, and green environmental protection. The composite permeation enhancement agent of the present invention does not need secondary treatment to increase permeation, the operation is convenient and fast, and the working time of holding pressure is reduced.

A permeable pavement system including a permeable pavement composition and a related method are provided. The permeable pavement system includes a first layer of a permeable pavement composition including a quantity of a first permeable pavement material and a quantity of cured carbon fiber composite material (CCFCM) incorporated therewith, the first layer defining a first surface; and a second layer of a second permeable pavement material deposited over a substantial entirety of and covering the first surface of the first layer of the permeable pavement composition, wherein the first layer interfaces with the second layer to at least strengthen the permeable pavement system.

A pervious concrete composition comprising a superabsorbent polymer in a proportion of 0.03 0.07 wt. % cement, preferably about 0.045 wt. % of cement, thereby enabling a water:cement ratio of 0.35 0.50. The superabsorbent polymer can be a cross-linked sodium polyacrylate-acrylamide/acrylic acid copolymer, and is introduced in powdered form to a concrete mix, wherein it is hydrated during the mixing process. The pervious concrete compositions herein can therefore be made with a desirable water:cement ratio and without the need for water-reducers or viscosity modifying additives. The invention further comprises methods of in stalling the pervious concrete compositions.

Migration of formation solids in a wellbore is restrained by feeding a slurry, comprising water, a viscosifier, and a concentration of cement clinker particles, into the wellbore, and hydrating the clinker particles in the wellbore. The clinker particles are kept in suspension during the hydrating, and upon completion of the hydrating the hydrated clinker particles form a hardened cement consisting of a permeable structure of interconnected hydrated clinker particles. A layer of degradable lost circulation material (LCM) may be employed to separate the slurry with clinker particles from the formation surrounding the wellbore during hydrating of the clinker particles.

A composition of matter has cement particles and resin structures having: a first functional group bonded directly to a surface of each cement particle; and a second functional group that bonds to calcium silicate hydrate upon hydration, wherein the second functional group is bondable with second functional groups of others of the cement particles to form a polymer network; and a backbone that connects the first functional group with the second functional group. A method of forming cement particles includes mixing cement particles with reactive molecules, the reactive molecules having a first functional group bonded directly to a surface of each cement particle, a second functional group that is bondable to calcium silicate hydrate upon hydration, wherein the second functional group is bondable with second function groups of others of the cement particles to form a polymer network, and a backbone that connects the first functional group with the second functional group. A composition of matter has cement particles, and a cured resin structure resulting from a reaction between two or more reactive molecules having functional groups that react with each other onto the surfaces of the cement particle, wherein one of the reactive molecules is used in less than a stoichiometric amount, leaving unreacted functional groups, and wherein the unreacted functional groups are bondable to calcium silicate hydrate upon hydration.