Modified Drilling fluid compositions, lost circulation material compositions and methods for using drilling fluid compositions are provided with enhanced loss control properties where the modified drilling fluid may include a carrier fluid, one or more drilling fluid additives, and a lost circulation shape-adaptable material. The loss lost circulation shape-adaptable material may include a plurality of oval shaped composite particles, wherein the plurality of oval shaped composite particles comprise a first component, a second component, and a high temperature, high pressure (HTHP) binding adhesive. Methods to control lost circulation in a lost circulation zone in a wellbore may include introducing a modified drilling fluid into the wellbore such that the modified drilling fluid contacts the lost circulation zone.

A spacer fluid includes an aphron generating component, a polymer, a lost circulation material, and a weighting agent component.

A wellbore treatment fluid containing lost circulation materials and methods for using the treatment fluid, the fluid including a carrier fluid and shape changing polymer structures. The shape changing polymer structures may be folded or rolled into various cross-sectional surface area reducing configurations and are capable of reversibly extending and reversibly contracting with changes in temperature. The materials forming the shape changing polymer structures may include at least one selected from poly[ethylene-co-(vinyl acetate)], poly(ω-pentadecalactone), poly(ε-caprolactone), and copolymers thereof. A method for utilizing the treatment fluid for creation or maintenance of a well includes forming or providing the treatment fluid and introducing the treatment fluid into a borehole.

An embodiment comprises a method of treating a subterranean formation comprising: providing a treatment fluid comprising a kiln dust, biowaste ash, and water; and introducing the treatment fluid into a subterranean formation. Another embodiment comprises a method of cementing comprising: introducing a cement composition into a subterranean formation, wherein the cement composition comprises a kiln dust, biowaste ash, and water; and allowing the cement composition to set in the subterranean formation. Yet another embodiment comprises a method comprising: providing a spacer fluid comprising biowaste ash and water; introducing the spacer fluid into a well bore to displace at least a portion of a first fluid from the well bore; and introducing a cement composition into the well bore, wherein the spacer fluid separates the cement composition and the first fluid.

The present discloses a pressure-bearing plugging composition comprising 1-7 parts by weight bentonite, 0.1-1.5 parts by weight deformation material, 8-18 parts by weight filling material and 4-12 parts by weight modified bridging material, based on 100 parts by weight of water; the modified bridging material comprises a core, and a coating layer coated on an outer surface of the core, and a paraffin layer disposed between the core and the coating layer; the core is made of a water-absorbing material, and the coating layer is formed by bonding rigid particles and an adhesive.

A date tree waste-based lost circulation material (LCM) is provided. The date tree waste LCM may include includes fibers from the date tree waste produced from processing date trees in the production of date fruits. The date tree waste may include fibers from one or more of the following: date tree trunks, date tree rachis, date tree leaflets, date tree panicles, and date tree roots. The date tree waste LCM may include fibers having lengths in the range of 5 millimeters (5 mm) to 15 mm, diameters in the range of 0.5 mm to 0.8 mm, and having an aspect ratio range of 6 to 30. Methods of lost circulation control using and manufacture of a date tree waste LCM are also provided.

Methods and compositions for treating subterranean formations with fluids containing lost circulation materials are provided. In one embodiment, the methods introducing a treatment fluid that includes a base fluid and a lost circulation material into a wellbore penetrating at least a portion of a subterranean formation, wherein the lost circulation material includes a plurality of particles having a multi-modal particle size distribution comprising a d10 value ranging from about 20 to about 50 microns, a d50 value ranging from about 55 to about 90 microns, and d90 value ranging from about 240 to about 340 microns.

Modified Drilling fluid compositions, lost circulation material compositions and methods for using drilling fluid compositions are provided with enhanced loss control properties where the modified drilling fluid may include a carrier fluid, one or more drilling fluid additives, and a lost circulation shape-adaptable material. The loss lost circulation shape-adaptable material may include a plurality of oval shaped composite particles, wherein the plurality of oval shaped composite particles comprise a first component, a second component, and a high temperature, high pressure (HTHP) binding adhesive. Methods to control lost circulation in a lost circulation zone in a wellbore may include introducing a modified drilling fluid into the wellbore such that the modified drilling fluid contacts the lost circulation zone.

Methods and compositions for treating subterranean formations with fluids containing lost circulation materials are provided. In one embodiment, the methods introducing a treatment fluid that includes a base fluid and a lost circulation material into a wellbore penetrating at least a portion of a subterranean formation, wherein the lost circulation material includes a plurality of particles having a multi-modal particle size distribution comprising a d10 value ranging from about 20 to about 50 microns, a d50 value ranging from about 55 to about 90 microns, and d90 value ranging from about 240 to about 340 microns.

The present disclosure provides methods, compositions, and systems embodying cement compositions and the synergistic effect of lost circulation materials (LCMs) and fluid loss control additives (FLCAs) thereupon for cementing subterranean zones. A method of subterranean well cementing, comprising providing a cement composition comprising a hydraulic cement, a first FLCA, an LCM, and water, wherein the first FLCA comprises a water-soluble polymer with repeating units comprising a 5- to 6-membered cyclic amide; introducing the cement composition into a wellbore penetrating a subterranean formation, wherein inclusion of the first FLCA and the LCM in the cement composition fluid reduces fluid loss into the subterranean formation, wherein the subterranean formation has fractures with a width of from about 1 micron to about 800 microns, and wherein the subterranean formation has a permeability of about 1 milliDarcy to about 300 Darcy; and allowing the cement composition to set in the subterranean formation.