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Proceedings Papers

Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0121
... straddle packer wireline tools, the so-called microfrac test. However, shaly overburden and cap rock formations in particular have very low mobility, therefore the induced fracture bleeds off at an extremely low rate after shut-in. This lack of formation leak-off and fracture closure renders least...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 17–19, 2017
Paper Number: SPE-186909-MS
... a new, inexpensive approach tomeasure seam-level reservoir pressure depletion using Packer Inflation Bleed Off Tests (PIBOTs). Using an existing dual packer drill stem test (DST) tool, formation intervals as small as 1.5 metres can be isolated, allowing individual coal seam measurements to be made...
Proceedings Papers

Paper presented at the SPE Production and Operations Symposium, March 24–27, 2001
Paper Number: SPE-67194-MS
... Patterns of SCP Buildup We have analyzed historical data of casing pressure change from 38 casing string affected by SCP. Fig. 3 shows a typical pattern of SCP buildup. Of all 38 casings with SCP, 82 percent have this pattern of buildup. The casing pressure rises quickly after the bleed-off...
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BHP in TTRD operation – No <span class="search-highlight">bleed</span>-<span class="search-highlight">off</span> of annulus pressure in drill string co...
Published: 28 March 2007
Figure 7 BHP in TTRD operation – No bleed-off of annulus pressure in drill string connection mode More
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DTS temperature logs before, during and after B annulus <span class="search-highlight">bleed</span>-<span class="search-highlight">off</span>
Published: 07 November 2016
Figure 7 DTS temperature logs before, during and after B annulus bleed-off More
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Matching of pressure <span class="search-highlight">bleed</span> <span class="search-highlight">off</span> and build up with SCP model
Published: 21 March 2011
Figure 4 Matching of pressure bleed off and build up with SCP model More
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<span class="search-highlight">Bleed</span>-<span class="search-highlight">off</span> test at 2 nd  setting depth 1850m MD showing the annulus pressure...
Published: 22 March 2016
Figure 10 Bleed-off test at 2 nd setting depth 1850m MD showing the annulus pressure following the same profile as the tubing pressure. Also indication on pressure drop when releasing the plug. More
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<span class="search-highlight">Bleed</span> <span class="search-highlight">off</span> test at 3 rd  setting depth 1850m MD showing the annulus pressure...
Published: 22 March 2016
Figure 12 Bleed off test at 3 rd setting depth 1850m MD showing the annulus pressure following the same profile as the tubing pressure and the pressure drop from operating the internal equalizing valve in the plug. More
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<span class="search-highlight">Bleed</span>-<span class="search-highlight">off</span> analyses for Both Dual-packer Cycles The plots show consistent fr...
Published: 12 November 2018
Figure 8 Bleed-off analyses for Both Dual-packer Cycles The plots show consistent fracture closure at pressures around 8900 psia More
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Sample calculation to calculate the time required for <span class="search-highlight">bleed</span> <span class="search-highlight">off</span> for achievi...
Published: 22 October 2013
Fig. 2 Sample calculation to calculate the time required for bleed off for achieving desired drawdown. More
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<span class="search-highlight">Bleed</span> <span class="search-highlight">off</span>- Build up test
Published: 23 September 2019
Figure 7.1 Bleed off- Build up test More
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<span class="search-highlight">Bleed</span> <span class="search-highlight">off</span>- Build up test
Published: 23 September 2019
Figure 7.2 Bleed off- Build up test More

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