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Search Petrowiki: Open hole completions
...Glossary:Open hole completions A completion without casing...
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...OOC * Glossary:OOIP * Glossary:Oolite * Glossary:OOS * Glossary:OP * Glossary:OPEC * Glossary:Open flow potential * Glossary:...Open hole completions * Glossary:...Open hole gravel pack * Glossary:...
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...Multilateral completions Multilateral completion systems allow the drilling and completion of multiple lateral boreholes w...bility, but it is possible to land a slotted liner in the lateral or the main bore to help keep the hole open during production. The production from a Level 1 system must be commingled, and zonal isolation or ... Baker Oil Tools--Engineering Tech Data Paper No. CS007. Patton, L.D. and Abbott, W.A. 1985. Well Completions and Workovers: The Systems Approach, second edition, 57โ67. Dallas: Energy Publications. Ruzhnikov...
Multilateral completion systems allow the drilling and completion of multiple lateral boreholes within a single mainbore. This allows for alternative well-construction strategies for vertical, inclined, horizontal, and extended-reach wells. Multilaterals can be constructed in both new and existing oil and gas wells. A typical installation includes two laterals; the number of laterals would be determined by: * The number of targets * Depths/pressures * Risk analysis * Well-construction parameters. General benefit provided by multilateral well design is barrel cost reduction.
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...PEH:Intelligent Well Completions Publication Information Petroleum Engineering Handbook Larry W. Lake, Editor-in-Chief Volu... Warner Jr., Editor Copyright 2007, Society of Petroleum Engineers Chapter 3 โ Intelligent-Well Completions By Mike Robinson, Energy Development Partners Ltd. Pgs. 113-134 ISBN 978-1-55563-122-2 Get pe...very, minimize operating costs, and improve safety. As of 2002, there were some 80 intelligent-well completions with a variety of systems installed worldwide. Hydraulic motive power supplies predominate for thes...
The generic term "intelligent well" is used to signify that some degree of direct monitoring and/or remote control equipment is installed within the well completion. The definition of an intelligent well is a permanent system capable of collecting, transmitting, and analyzing wellbore production and reservoir and completion integrity data, and enabling remote action to better control reservoir, well, and production processes. The concept of the intelligent completion does not generally refer to any capability for automated self-control but relies upon manual interface to initiate instructions to the well. Remote completion monitoring is defined as the ability of a system to provide data, obtained in or near the wellbore, without requiring access and entry for conventional intervention to the well. Remote completion control implies that information and instructions can be transmitted into the well to alter the position or status of one or more completion components. The primary objectives of these abilities are normally to maximize or optimize production/recovery, minimize operating costs, and improve safety. As of 2002, there were some 80 intelligent-well completions with a variety of systems installed worldwide. Hydraulic motive power supplies predominate for these systems, although various hybrid electrohydraulic and optohydraulic completions have been successfully deployed.
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...R. Warner Jr., Editor Copyright 2007, Society of Petroleum Engineers Chapter 3 โ Intelligent-Well Completions By Mike Robinson, Energy Development Partners Ltd. ISBN 978-1-55563-122-2 Get permission for reus...very, minimize operating costs, and improve safety. As of 2002, there were some 80 intelligent-well completions with a variety of systems installed worldwide. Hydraulic motive power supplies predominate for thes...e systems, although various hybrid electrohydraulic and optohydraulic completions have been successfully deployed. Until the late 1980s, remote monitoring was generally limited to ...
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...atural gamma ray systems designed for K-U-Th logging have been applied to evaluate stimulations and completions.[1] One or more radioactive isotopes tag the various materials sent downhole. From a spectral log t...
The latest variant on the gamma ray log is the spectral gamma ray log. This starts out exactly the same as the standard grossgamma ray count log. Gamma rays from the formation are counted in a detector system. However, there is an added level of sophistication. The energy of the gamma ray captured by the detector is proportional to the brightness of the light pulse it produces, and this brightness, in turn, determines the size of the electrical pulse produced by the photomultiplier.
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...annot be performed by the rig crew or operator (i.e., well logging, pipe inspection, or specialized completions). Regardless of the reasons for using support services, their costs affect the total well cost and ...re done on every well. The service may include formation evaluation, casing and cement logging, and hole-inclination surveys. Charges for well logging vary with suppliers. However, some consistency does ...ge for each time the unit is rigged up (i.e., once for openhole logging call-out and once for cased-hole logging at each depth). A depth charge, usually on a per-foot basis, is applied to the deepest dept...
Drilling operations require the services of many support groups. Evaluating the types of support services that will be needed and estimating the cost of those services is an important component ofwell planning that must be reflected in the authority for expenditure (AFE) for the well. Support service groups are used, because they can do a particular job more efficiently than the rig crew. An example of this efficiency is casing crews who are experienced in running large-diameter tubulars. Other support groups may provide services that cannot be performed by the rig crew or operator (i.e., well logging, pipe inspection, or specialized completions).
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...ater saturation,Sw. The neutrons are little affected by steel casing, so this is the standard cased-hole saturation tool. Like other nuclear tools, modern PNL tools incorporate two detectors for borehole ...doi.org/10.2118/24089-MS Maher, T. and Trcka, D. 1999. Inflow Fluid Typing in Screened Horizontal Completions Using aPulsed Neutron Holdup Imager. Presented at the SPE Annual Technical Conference and Exhibitio...
This page provides an overview of Pulsed-Neutron-Lifetime (PNL) devices and their applications. They probe the formation with neutrons but detect gamma rays. Chlorine has a particularly large capture cross section for thermal neutrons. If the chlorine in the formation brine dominates the total neutron capture losses, a neutron-lifetime log will track chlorine concentration and, thus, the bulk volume of water in the formation. For constant porosity, the log will track water saturation,Sw.
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...ther applications include: * Optimizing the locations of perforations * Well spacing * Tailoring completions to maximize recovery rates and efficiencies * Improving primary and secondary recovery design sche...
The ability to estimate formation permeability is one of the earliest benefits of nuclear magnetic resonance (NMR) logging and remains the most important application. This artcle provides an overview of permeability estimation techniques by use of NMR logging. Laboratory studies demonstrate that pore-water relaxation time is inversely related to the surface area-volume (S/V) ratio of the pore space (Fig.1). The NMR estimate of permeability is based on theoretical and core-based models that show that permeability increases with increasing porosity and pore size (S/V). This plot illustrates the difference between echo trains obtained from formations with similar porosity but different pore sizes.
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