摘要:
Methods of servicing a wellbore include generating gas in a plugging composition in situ within a permeable zone in the wellbore, thereby improving the ability of the plugging composition to seal the permeable zone. The gas may be generated via a chemical reaction by, for example, introducing first and second reactants to the plugging composition that can react at ambient temperatures in the wellbore. In an embodiment, the first and second reactants are concurrently pumped into the wellbore via separate flow paths within two concentric conduits to the permeable zone where they are allowed to contact each other in the presence of the plugging composition. In another embodiment, the first reactant, the second reactant, and a retarder for slowing the reaction between the two reactants are concurrently pumped to the permeable zone. In yet another embodiment, one of the reactants is encapsulated to delay a reaction between the two reactants.
摘要:
The invention provides a method for producing guar gum, the method comprising the steps of: (a) sizing husk from guar seed into larger pieces and smaller pieces, (b) washing the larger pieces, (c) soaking the larger pieces, and (d) flaking the larger pieces to obtain guar gum. The invention also provides a method for processing undehusked guar splits, the method comprising the steps of: (a) dehusking undehusked guar splits to obtain dehusked guar splits and husk, and (b) sizing the husk into larger pieces and smaller pieces. The invention further provides a method for treating a subterranean formation penetrated by a wellbore, wherein the method comprises the steps of: (a) sizing husk from guar seed into larger pieces and smaller pieces; (b) washing the larger pieces; (c) soaking the larger pieces; (d) flaking the larger pieces to obtain guar gum flakes; (e) grinding the guar gum flakes to obtain guar gum powder; (f) forming a well treatment fluid, wherein the well treatment fluid comprises an aqueous fluid and the guar gum powder; and (g) introducing the well treatment fluid through the wellbore into the subterranean formation.
摘要:
The invention relates to methods for improving the suspension of solids in liquids; more particularly, to reducing the potential stresses caused by increased particle loading in a fluid. An example of a method is a method of enhancing the flow of particles. Another example of a method is a method of fracturing a subterranean formation. Another example of a method is a method of gravel packing a portion of a subterranean formation. Another example of a method is a method of enhancing the flow of drill cuttings. An example of a composition is a treatment fluid comprising a liquid component and a solid component.
摘要:
Methods comprising for pricing and scheduling one or more well services comprising obtaining input data for the one or more well services, determining the well service specifications, determining a schedule for the one or more well services, determining costs for the one or more well services, and determining the price of the one or more well services based on a plurality of factors, wherein the plurality of factors comprises the schedule and the costs. Methods comprising for pricing and scheduling one or more well services comprising obtaining input data for the one or more well services, the input data comprising well characteristics of the one or more well service, determining a schedule for the one or more well services, determining the price of the one or more well service based on a plurality of factors, wherein the plurality of factors comprises the schedule and the well characteristics.
摘要:
An apparatus for testing a rheological property of a fluid with a particulate includes: (a) a receptacle having a cylindrical side wall enclosed by a bottom wall defining a cavity for receiving a fluid to be tested; (b) an axial support adapted to be positioned in the cavity of the receptacle, whereby relative rotational motion can be imparted to the receptacle and the axial support; (c) at least one inward projection extending inward from an inside surface of the receptacle; (d) at least one outward projection extending outward from the axial support; and (e) at least one projection for directing fluid flow that has at least one major surface angled or curved upward. A method of testing a Theological property of a fluid with a particulate includes: (a) placing a sample of the fluid and the particulate in the apparatus; (b) imparting relative rotational motion to the receptacle and the axial support; and (c) measuring the torque between the receptacle and the axial support. A method of fracturing a subterranean formation penetrated by a well includes: (a) placing a sample of a fracturing fluid and a particulate in the apparatus; (b) imparting relative rotational motion to the receptacle and the axial support; (c) measuring the torque between the receptacle and the axial support; (d) adjusting the conditions for mixing the fracturing fluid and the particulate in response to the measured torque; and (e) injecting the fluid and particulate into the well at a sufficient rate and pressure to fracture the formation.