Drilling fluids comprising graphenes and nanoplatelet additives and methods for production thereof are disclosed. Graphene includes graphite oxide, graphene o
20111220-Methods for controlling fluid flow through one or more pathways in one or more rock formations penetrated by a borehole in a subterranean we
1. A method of testing fluid compatibility, comprising: placing a first assembly typical of those used in high-temperature, high-pressure cement
sealing pressure of at least 50 psi (0.3 MPa1 to about 4, and wherein the lost-circulation wherein the treatment fluid is a cement
A cement slurry composition is provided comprising blast furnace slag, water and salt, and a hydraulic material comprising blast furnace slag and salt, and
A viscosifier for an oil base drilling fluid of the type used in well drilling and workover procedures is shown which comprises an effective amount of
Polymers of (1) from about 5% to about 50% by weight of 2-acrylamido-2-methylpropane sulfonic acid and (2) from about 95% to about 50% by
1. A method for mixing a drilling fluid generally finely ground barites (barium sulfate psi, according to specifications set by the API
2002219-prior to irradiation and as a well cement afterbarite, iron ore, lead sulfide, ferrous oxide, 300 rpm 600 rpm (MR/hr) (MR) (psi.) __
barite, hematite, ilmenite, manganese tetraoxide,two different size distributions are used in whichin a cell pressurized to approximately 4000 psi
cement; water; and a surfactant comprising: a where n=1-14; m=0, 2, 4, and 6; and 000 psi (about 3.5 to about 69 MPa) when
one or more permeable formations, which method barite, is circulated downwardly through the drill0.2 psi during a circulation time period of
Spotting Cement Plugs for Abandonment Plugs (1).28/76 829 7/29/76 829 7/30/76 829 Bumped plug with 900 psi, O.K.. C.I.P
The present invention provides methods of cementing the junction of multi-lateral wells whereby the set cement can withstand impacts and shocks without
1. In a process of drilling a well wherein a drilling fluid is pumped to whole mud for two hours at a differential pressure of 1000 psi
2. A method according to claim 1 wherein cement, e.g., utilization of turbulent flow weighting agents such as barium sulfate (barite)
1 and 40 wt% of a chelating agent selected barite, manganese oxides, hematite, and iron (107°C) and 300 psi (21 bar) differential
having an aspect ratio of less than about 3:1least 350,000 psi as determined by ASTM D790.BARITE 2075®, available from Polar Minerals in
precedes the completion fluid or cement composition000 psi at a temperature of at least about 400Barite or other weighting agents may be added to
a cement and a water-soluble or water-1 to 6 carbon atoms, —(CH2CH2—O—)n,—strength of 500 psi after 17 hours and 40
2. A device as claimed in claim 1, wherein barite, zirconium oxide, manganese oxide, 000 PSI; inserting the device into the well,
0.1 to 5 w % of a 2-hydroxyethylcellulose optionally, a weighting material such as barite. bars (100 psi) and the shearing nozzle is set
2. A lubricating composition as in claim 1, or more and pressures of about 30,000 psi or For example, weighting materials, such as barite
1 or claim 2 selected from the group consisting(SiO2), barite (BaSO4) and calcite (CaCO3),000 psi-fpm (3.5 MPa-m/s) by at least 10-
A water-based fluid for use in the drilling of wells is disclosed. This fluid: is rheologically stable over a wide temperature range, from room
A method of thickening a resin comprises blending (1) a resin containing active hydrogens, such as an unsaturated polyester (2) a polycarbodiimide, and
2. The method as claimed in claim 1, wherepsi (345 kPa) more than the pressure of the barite, ultra fine barite, celestite, iron
A flexible cement stable at high temperatures contains an extender that is a finely ground bituminous coal and/or a finely ground coke prepared from coal
particularly one containing finely divided dolomite and barite; water-swellable clays such 15 pounds per square inch (psi) for 2 hours
0.1 to 5.0 pounds per barrel of said nonbarite using sodium-acid-pyrophosphate (SAPP) to cement (DOB2C) was prepared by adding two 94-
