Experimental and simulation studies of zone isolation in horizontal wells /
(10 - 30 gal/min) for low viscosity gel (1 - 5 cp) are
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1997.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | (10 - 30 gal/min) for low viscosity gel (1 - 5 cp) are 501/o Q. 0. resin concentration yielded the maximum holding a formation gel in between the straddle wellbore plug system A new straddle wellbore plug system for zone isolation has action in a wellbore. For K-@ plugs, the holding pressure and injection pressure differentials. Three chemicals were another chemical wellbore plug in the horizontal section be washed out and (ii) conduct horizontal well simulation been proposed. The technique consists of four sequential diatomaceous earth or Lubra Glide coarse beads which enhanced downstream of the problem zone, (iii) spotting and squeezing Experiments were conducted to "weaken" the TEXPLUG plugs, and formation gel and the wellbore plug to clean the borehole horizontal section upstream of the problem zone, (ii) setting increased with CaCI2 concentration. For Y.ELCO gellan gum, injected into the problem zone may be calculated by knowing into the problem zone, and (iv) washing out the excess model to obtain formation gel injection rates for various gel obtained with a pressure differential of 50 psi for a pressure for TEXPLUG. However, when set, the TEXPLUG plugs pressure to serve as wellbore plugs, yet are soft enough to prior to production. There are two main objectives of this promising method. proposed straddle chemical wellbore plug system to be a research: (i) select chemicals that have the required holding reservoir with permeability of 1000 md, and 50 - 100 ft of selected for the study: TEXPLUG, K-@ and KELCO gellan gum. Simulation results show that relatively high injection rates stages: (i) setting a chemical wellbore plug in the studies using a three-phase, three-dimensional Cartesian the duration of injection before the formation gel sets. the effect of concretion. The amount of formation gel the holding pressure increased with the addition of to "strengthen" the K-MAX and KELCO gellan gum plugs by varying the concentrations of the polymer, cross-linker and, viscosities, drainage configurations, reservoir properties, were found to be too hard to possibly be removed by jetting where applicable, the solvent. The results show that about |
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| Item Description: | "Major subject: Petroleum Engineering". Vita. |
| Physical Description: | xi, 110 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references: pages 48-51. |