Abstract:
A well treatment composite comprising a well treatment agent adsorbed onto a water-insoluble adsorbent may be prepared by precipitating the well treatment agent, in the presence of a metal salt, from a liquid while the well treatment agent is being adsorbed onto the water-insoluble adsorbent. After a treatment fluid containing the composite is introduced into a well or a subterranean formation, the well treatment agent is slowly released from the composite. The composite permits a continuous supply of the well treatment agent into a targeted area and is particularly effective in high pH treatment fluids.
Abstract:
The stimulated rock volume (SRV) of a subterranean formation may be increased by pumping viscous fracturing fluid into the formation in a first stage to create or enlarge a primary fracture, decreasing the pumping in order for the fluid to increase in viscosity within the primary fracture, and then continuing to pump viscous fluid into the formation in a second stage. The fluid pumped into the second stage is diverted away from the primary fracture and a secondary fracture is created. The directional orientation of the secondary fracture is distinct from the directional orientation of the primary fracture. The fluid of the first stage may contain a viscosifying polymer or viscoelastic surfactant or may be slickwater.
Abstract:
Fluids (e.g., fracturing fluids or stimulation fluids) with inhibition material for inhibiting bacteria from producing hydrogen sulfide and, in one aspect, wherein such fluid is a fracturing fluid, and methods of the use of such fluids. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).
Abstract:
Biocide compositions comprising biocide, surfactant, and solubilizing agent. The preferred biocide is parachlorometaxylenol. The biocide composition is useful in oil and gas drilling operations, such as hydraulic fracturing, as well as treating aqueous slurries in ore mining operations. The biocide compositions are effective in controlling microorganisms even in the presence of high salt content water and at high temperatures.
Abstract:
Methods of treating subterranean formations to reduce bacteria load are provided. Some methods include the steps of providing a treatment fluid, particulates, and tri-n-butyl tetradecyl phosphonium chloride (TTPC) wherein the TTPC is in liquid form or in solution; coating the TTPC onto the particulates; combining the particulates coated with TTPC with the treatment fluid to create a suspension; and, placing the suspension into the portion of the subterranean formation. Other methods involve the use of TTPC in the form of a solid salt.
Abstract:
Disclosed herein is a composition comprising from about 0.1 wt % to about 50 wt % of a plant based product comprising mucilage. Methods of making the composition, a well treatment fluid comprising the composition, and methods of using the composition are also disclosed.
Abstract:
Methods of treating subterranean formations to reduce bacteria load are provided. Some methods include the steps of providing a treatment fluid, particulates, and tri-n-butyl tetradecyl phosphonium chloride (TTPC) wherein the TTPC is in liquid form or in solution; coating the TTPC onto the particulates; combining the particulates coated with TTPC with the treatment fluid to create a suspension; and, placing the suspension into the portion of the subterranean formation. Other methods involve the use of TTPC in the form of a solid salt.
Abstract:
Methods and compositions that include a method comprising providing a treatment fluid that comprises an aqueous base fluid, a biocide, a biocide enhancer, a friction reducer, and a compatibility aid, and introducing the treatment fluid into a subterranean formation. A composition provided includes a treatment fluid comprising an aqueous base fluid, a biocide, a biocide enhancer, a friction reducer, and a compatibility aid.
Abstract:
A well stimulation and or treatment fluid that includes water, other additives, and a biocide consisting of 2,5-dimethyl-1,3,5-thiadiazinane-2-thione in an amount effective to inhibit bacterial growth and minimize antagonistic reactions between the biocide and other additives. Also disclosed are well injection compositions, stimulations, squeezing, waterflood, packing, cement compositions, and methods for cementing.
Abstract:
The invention describes a process for controlling contamination of oil production system waters by sessile bacteria, comprising a) addition of a slug dose of a biologically effective amount of a quick-kill biocide, simultaneously with or followed by b) intermittent addition of a biologically effective amount of a control biocide. This dosing regime is found to be surprisingly effective when compared with known dosing regimes.