Fluid and Soil Properties Sample Clauses

Fluid and Soil Properties. Geologic heterogeneities are probably the key factor which reduce the effectiveness of chemical enhanced recovery processes because their success depends on the delivery of injected chemical and water into the subsurface to contact the organic liquids. Heterogeneities result in a complex distribution of DNAPL in residual zones and pools. To capture some of the geologic features, reservoir properties such as formation permeability, porosity, residual phase saturation, phase relative permeability, and phase capillary pressure are allowed to vary spatially in UTCHEM. Phase trapping functions and adsorption of both surfactant and polymer are modeled as a function of permeability. Many of the properties of anionic surfactants and polymers depend on the electrolyte concentrations in the water. Divalent cations such as calcium and magnesium ions are particularly important and can make significant differences in adsorption and other properties even at the low concentrations typically found in ground water. Furthermore, it cannot be assumed that these concentrations do not change since processes such as cation exchange and mineral dissolution occur during surfactant remediation. In this paper, we describe these electrolyte effects in terms of salinity or effective salinity (defined below) and these terms as used in this context refer to any electrolyte concentrations of interest, but especially to those of interest to surfactant remediation of aquifers containing ground water at low electrolyte concentrations. The same term and the same models are used to describe high salinities typical of oil reservoirs, but it should not be inferred that these electrolyte effects are only significant at high salinities. In fact, cation exchange between the water and clays and between the water and micelles (when anionic surfactant above its critical micellar concentration is present) is more important at low salinities typical of potable water than it is at high salinities such as sea water or high salinity oil reservoirs. The description of properties in this paper assumes that alcohols, polymer/cross-linker, and components for high-pH flooding are absent. These property models are described in Saad [1989], Xxxxxx et al. [1990], and Xxx [1995].
Sample 1
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Related to Fluid and Soil Properties

  • Real Properties The Company does not have an interest in any real property, except for the Leases (as defined below).

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  • Notice of Sales of Oil and Gas Properties In the event the Borrower or any Subsidiary intends to sell, transfer, assign or otherwise dispose of any Oil or Gas Properties or any Equity Interests in any Subsidiary in accordance with Section 9.12, prior written notice of such disposition, the price thereof and the anticipated date of closing and any other details thereof requested by the Administrative Agent or any Lender.

  • Properties and Leases Except as would not, individually or in the aggregate, reasonably be expected to have a Company Material Adverse Effect, the Company and the Company Subsidiaries have good and marketable title to all real properties and all other properties and assets owned by them, in each case free from liens, encumbrances, claims and defects that would affect the value thereof or interfere with the use made or to be made thereof by them. Except as would not, individually or in the aggregate, reasonably be expected to have a Company Material Adverse Effect, the Company and the Company Subsidiaries hold all leased real or personal property under valid and enforceable leases with no exceptions that would interfere with the use made or to be made thereof by them.

  • MINES The Contractor represents and warrants that neither it, its parent entities (if any), nor any of the Contractor’s subsidiaries or affiliated entities (if any) is engaged in the sale or manufacture of anti-personnel mines or components utilized in the manufacture of anti-personnel mines.

  • WILD AND SCENIC RIVERS The Wild and Scenic Rivers Act of 1968 (16 U.S.C. § 1271, et seq.) as amended, particularly sections 7(b) and (c) (16 U.S.C. § 1278(b) and (c)). AIR QUALITY The Clean Air Act (42 U.S.C. § 7401, et seq.) as amended, particularly sections 176(c) and (d) (42 U.S.C. §7506(c) and (d)). Determining Conformity of Federal Actions to State or Federal Implementation Plans (Environmental Protection Agency-40 C.F.R. Parts 6, 51, and 93).

  • Operations and Properties Borrower shall, and shall cause each of its Subsidiaries to, act prudently and in accordance with customary industry standards in managing or operating its assets, properties, business and investments. Borrower shall, and shall cause each of its Subsidiaries to, keep in good working order and condition, ordinary wear and tear excepted, all of its assets and properties which are necessary to the conduct of its business.

  • Title to Properties; Encumbrances The Company does not currently own, nor has it ever owned (a) any real property, (b) any leasehold interests or (c) any buildings, plants, structures and/or equipment. Part 3.6 of the Seller Parties Disclosure Schedule contains a complete and accurate list of all (A) the Assets that the Company purports to own, including all of the properties and assets reflected in the Balance Sheet (except for assets held under capitalized leases disclosed or not required to be disclosed in Part 3.6 of the Seller Parties Disclosure Schedule and personal property sold since the date of the Balance Sheet, as the case may be, in the Ordinary Course of Business), and (B) all of the properties and assets purchased or otherwise acquired by the Company since the date of the Balance Sheet (except for personal property acquired and sold since the date of the Balance Sheet in the Ordinary Course of Business and consistent with past practice), which subsequently purchased or acquired properties and assets (other than inventory and short-term investments) are listed in Part 3.6 of the Seller Parties Disclosure Schedule. The Company is the sole owner and has good and marketable title (or leasehold title, as the case may be) to the Assets free and clear of all Encumbrances, and the Assets reflected in the Balance Sheet are free and clear of all Encumbrances and are not, in the case of real property, subject to any rights of way, building use restrictions, exceptions, variances, reservations, or limitations of any nature except, with respect to all such properties and assets, (i) mortgages or security interests shown on the Balance Sheet as securing specified liabilities or obligations, with respect to which no default (or event that, with notice or lapse of time or both, would constitute a default) exists, (ii) mortgages or security interests incurred in connection with the purchase of property or assets after the date of the Balance Sheet (such mortgages and security interests being limited to the property or assets so acquired), with respect to which no default (or event that, with notice or lapse of time or both, would constitute a default) exists, (iii) liens for current taxes not yet due, and (iv) Encumbrances pursuant to the Pledge Agreement (as defined below) or the Facility Agreement and (v) Encumbrances incurred in the Ordinary Course of the Business, consistent with past practice, or created by the express provisions of the Contracts, each of the type identified on Part 3.6 of the Seller Parties Disclosure Schedule (together, the “Permitted Encumbrances”). All such assets are suitable for the uses to which they are being put or have been put in the Ordinary Course of Business and are in good working order, ordinary wear and tear excepted.

  • The Properties Attached hereto as Schedule I is the description of certain Land (the "Subject Property"). Effective upon the execution and delivery of this Lease Supplement by Lessor and Lessee, such Land, together with any Building and other improvements thereon or which thereafter may be constructed thereon shall be subject to the terms and provisions of the Lease and Lessor hereby grants, conveys, transfers and assigns to the Related Lessee those interests, rights, titles, estates, powers and privileges provided for in the Lease with respect to the Subject Property.

  • Access to Properties Subject to the rights of Tenants, Borrower shall permit agents, representatives and employees of Lender to inspect the Properties or any part thereof at reasonable hours upon reasonable advance notice.

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