Well Design Sample Clauses

Well Design. 2.1 Design considerations Design phase of a typical geothermal well includes several tasks, including: determining design temperatures and pressures at static and dynamic flowing conditions, casing depth selections, casing selection and structural design, drilling program and well completion, and after completion, plan for warm-up and flow-testing. For design purposes the formation lithology and its conditions provide vital information on targeting, drilling procedure and wellbore integrity. Temperature and pressure (TP) profiles in nearby xxxxx are used to estimate likely TP conditions. In such a deep well, the critical point of water will be encountered at ~3500 m depth assuming hydrostatic column of pure water at boiling conditions (boiling point curve). The depth is however dependant on where the pivoting point of pressure (or the water table) is located in the well as well as salinity of the fluid. Salinity effects on the boiling- point depth curve (BPD) is that pressure and temperature are slightly increased downhole and the critical point is reached at a greater depth (Xxxxxxx, et al., 2015). Below the critical point the density of the fluid is assumed to be either with a fixed gradient or isochor representing pressure corresponding to changes of temperature of fixed volume of steam (Xxxxxxxxxxxx, et al., 2010). Maximum working pressure and temperature estimated during drilling and production is estimated from the assumed downhole subsurface conditions, i.e. maximum design pressure for depth, assuming that the well is filled with saturated steam from the well bottom. Or for such deep well, the assumption is that the well will be filled with superheated steam rather than saturated. The general design condition for minimum casing depth selection is that a column of heavy mud (SG 1.4) inside the longest casing at any time during the well construction is able to balance the pressure from a blowout in the next open hole section (Xxxxxxx, et al., 2015). Furthermore, in a new edition of the New Zealand standard, NZS2403:2015 Code for practice for deep geothermal xxxxx, to ensure well control the formation fracture pressure is used and the minimum casing depth selected where the formation has sufficient effective containment pressure to equal the maximum design pressure expected in the next open hole section. Material selection for geothermal xxxxx has conventionally been standard low grade API casings. Recommended geothermal steel grades to avoid corrosion...
Sample 1
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Well Design. Ideally, xxxxx designed for characterization using techniques described in this document should be fully screened across the interval of interest, such as the contaminant plume, be constructed without an artificial filter pack, and be screened such that the top of the screen is far enough below the water table to allow placement of the pump intake in the well casing during the test. Xxxxx et al. (1997) discuss the potential influence of an artificial filter pack on flowmeter results. A coarse-grained gravel or sand pack may result in significant vertical flow through the pack prior to entering the screen. This phenomena is enhanced by use of high flow rates that result in resistance to flow through the downhole probe of the electromagnetic flowmeter. In this situation, the measured flow distribution is skewed with a high influx of water near the top of the screen. For this reason, use of a borehole flowmeter in xxxxx constructed with a filter pack of gravel- sized material may not provide meaningful data and generally should be avoided. It is also possible to observe some effects in xxxxx with filter packs constructed of coarse-grained sand if the hydraulic conductivity of the pack material is significantly greater than aquifer materials. However, use of a natural collapse well construction is not always feasible. For example, formations with a significant fraction of fine-grained materials or units may not be appropriate for natural collapse construction and may result in void space within the annulus that affects test results. Results of field applications of the borehole flowmeter indicate that it is possible to obtain representative flowmeter measurements in many xxxxx constructed using an artificial pack. In general, xxxxx specifically constructed for these tests should avoid use of artificial filter packs, where possible. If an artificial pack is used, the data should be carefully examined for evidence of bias in the flow distribution. Xxxxx that are screened across the water table may be subject to increased head loss near the pump intake. This is particularly true for xxxxx constructed with an artificial filter pack that is significantly more conductive than surrounding aquifer materials (Xxxxx et al., 1997). This situation may result in a nonuniform head distribution in the well and an increased influx of water near the pump intake. Such a situation would also bias flowmeter test results. Presence of a low permeability skin (i.e., positive skin ef...
Sample 1
Well Design. The CONSULTANT will provide pump sizing and design capable of serving the project site from the irrigation aquifer well. It is the CONSULTANT’s understanding that the well will feed the irrigation mains directly. The CONSULTANT will perform limited hydraulic modeling sufficient to design and size the well pumps and piping. Hydraulic model will be based on irrigation demand and minimum operating pressures determined in the irrigation design task herein. The VILLAGE understands finished well yield may vary due to site-specific aquifer characteristics. The mechanical piping specification of materials will be based upon the VILLAGE’s standard specifications (if applicable). It is assumed a suitable location for the well can be found within the existing Xxx County owned ROW, or contiguous VILLAGE owned property, and that Xxx County approves of the use and well construction in that location. The CONSULTANT shall provide post design services to include response to questions during bid, response to RAI’s and provide clarification and interpretation of the plans.
Sample 1

Related to Well Design

  • Final Design A.4.1. Provide OWNER with proposed final construction drawings and detailed opinions of probable total Project construction costs in writing for OWNER' s review, prior to completion of the final Contract Documents, so that any changes that may be necessary in accordance with Project' s budgetary schedule can be made prior to bid.

  • Research Design The data generated by excavations at the prehistoric site(s) will be used to examine at least three topics: (1) chronology; (2) technology; and (3) subsistence practices. Insights into changing patterns of community organization may also be granted, as may insights into changes in social organization. The data recovered will then be compared to data from other regional sites.

  • Study Design This includes a discussion of the evaluation design employed including research questions and hypotheses; type of study design; impacted populations and stakeholders; data sources; and data collection; analysis techniques, including controls or adjustments for differences in comparison groups, controls for other interventions in the State and any sensitivity analyses, and limitations of the study.

  • The Design Builder shall maintain an occurrence form commercial general liability policy or policies insuring against liability arising from premises (including loss of use thereof), personal injury or death, advertising injury, liability insured under an insured contract (including the tort liability of another assumed in a business contract) occurring on or in any way related to the premises or occasioned by reason of the operations of Design-Builder. Such coverage shall be written on an ISO occurrence form (ISO Form CG 00 01 12 07 or a policy form providing equivalent coverage) in an amount of not less than $1,000,000.00 per occurrence and not less than $2,000,000.00 aggregate. Unless otherwise provided, the policy or policies of insurance providing the liability coverage shall include:

  • Project Design Applicants must design a project that provides access to health services to enable eligible women and men experiencing health needs to secure and maintain safe and accessible quality screening and diagnostic services, comprehensive family planning, and/ or other women’s health services.

  • ROADWAY DESIGN MISCELLANEOUS (ROADWAY) The Engineer shall provide the following services:

  • Plan Design The flexible benefits plan is a cafeteria-style benefits program wherein the County makes a contribution toward the Flexible Benefits Plan for each eligible employee to be allocated during the employee's active employment. The County contribution is distributed by the employee among the menu of benefit options listed below, the specific details and administration of which are set forth in the plan brochures: "Core" Benefits: • Health insurance • County basic life and AD&D insurance Optional Benefits: • Dental insurance • Vision insurance • Supplemental life insurance • Supplemental accidental death and dismemberment insurance (AD&D) • Flexible spending accounts for pre-tax reimbursement of qualified medical and/or dependent day care expenses. Account credits must be used during the plan year in which they are earned for expenses incurred during the same plan year. • The plan may be modified upon written notice by the County. This plan includes for eligible employees pre-tax contributions for all monies paid toward health, dental, vision and/or voluntary AD&D plans.

  • Schematic Design See Section 2, Part 1, Article 2.1.4, Paragraph 2.1.4.2.

  • Program Design The County Human Resources Department will operate a Catastrophic Leave Bank which is designed to assist any County employee who has exhausted all paid accruals due to a serious or catastrophic illness, injury, or condition of the employee or family member. The program establishes and maintains a Countywide bank wherein any employee who wishes to contribute may authorize that a portion of his/her accrued vacation, compensatory time, holiday compensatory time or floating holiday be deducted from those account(s) and credited to the Catastrophic Leave Bank. Employees may donate hours either to a specific eligible employee or to the bank. Upon approval, credits from the Catastrophic Leave Bank may be transferred to a requesting employee's sick leave account so that employee may remain in paid status for a longer period of time, thus partially ameliorating the financial impact of the illness, injury, or condition. Catastrophic illness or injury is defined as a critical medical condition, a long-term major physical impairment or disability which manifests itself during employment.

  • 253 Design Change (a) “Design Change” is a change in work and/or materials shown in the Schedule of Items and described in Plans or specifications that has been mutually agreed to in writing or ordered by Contracting Officer. Changes of a minor nature (such as adjustment in horizontal and vertical alignment, that do not exceed specified tolerance, necessary to maintain or balance earthwork quantities substantially as designed) and variation in quantities, as described in B5.251, shall not be considered Design Changes.

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