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Proceedings Papers

Paper presented at the SPE International Improved Oil Recovery Conference in Asia Pacific, October 20–21, 2003
Paper Number: SPE-84915-MS
..., the back surging technology used for post gravel pack perforation tunnel cleaning operations in sandstone reservoir was recasted with minor modifications and applied for stimulating the horizontal wells in the saturated, multilayered LIII reservoir Wells IQ-9H and S16-P1H located in the downdipside...
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Dynamics of drain‐<span class="search-highlight">back</span> flowline during a <span class="search-highlight">surge</span> and swab.  q  choke ,  Q  2 ...
Published: 15 October 2020
Fig. 12 Dynamics of drain‐back flowline during a surge and swab. q choke , Q 2 , and q return are the true values. q ^ choke ,   Q ^ 2 , and q ^ return are the estimated values using UKF. More
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Process showing trip <span class="search-highlight">back</span> to bottom with liner compensation for <span class="search-highlight">surge</span> and t...
Published: 27 September 2022
Figure 10 Process showing trip back to bottom with liner compensation for surge and then cementing with MPD maintaining pressure balance within the narrow operating window. More
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Gullfaks C offshore commissioning swab and <span class="search-highlight">surge</span> experiment. Top: <span class="search-highlight">back</span> pres...
Published: 02 February 2010
Figure 14. Gullfaks C offshore commissioning swab and surge experiment. Top: back pressure set point and measurement, middle: BHP set point and measurement, bottom: rates. More
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Pressure profile during <span class="search-highlight">surge</span> flow <span class="search-highlight">back</span>.
Published: 23 February 2000
Figure 3(a) Pressure profile during surge flow back. More
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Velocity profile during <span class="search-highlight">surge</span> flow <span class="search-highlight">back</span>.
Published: 23 February 2000
Figure 3(b) Velocity profile during surge flow back. More
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Concentration of fines in pore bodies (σ b ) during <span class="search-highlight">surge</span> flow <span class="search-highlight">back</span>.
Published: 23 February 2000
Figure 3(d) Concentration of fines in pore bodies (σ b ) during surge flow back. More
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Concentration of fines at pore throats (σ T ) during <span class="search-highlight">surge</span> flow <span class="search-highlight">back</span>.
Published: 23 February 2000
Figure 3(e) Concentration of fines at pore throats (σ T ) during surge flow back. More
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Local permeability during <span class="search-highlight">surge</span> flow <span class="search-highlight">back</span>.
Published: 23 February 2000
Figure 3(g) Local permeability during surge flow back. More
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<span class="search-highlight">Surge</span> Test 1. Permeability as a function offluid volume injected. BP = <span class="search-highlight">Back</span>...
Published: 09 October 2017
Figure 23 Surge Test 1. Permeability as a function offluid volume injected. BP = Backpressure. More
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 12–15, 2005
Paper Number: SPE-93560-MS
... during CCDST flow periods. 6 – 9 The Back-Surge Test is a limited form of the previously described closed-chamber flow period. Originally conducted in offshore Gulf Coast wells, back-surge perforation washing, and underbalanced perforating served to clean up the well, enabling high...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–29, 2004
Paper Number: SPE-90837-MS
... to the backsurge test FasTest (essentially a surge test/CCT) Impulse Test (also essentially a surge test/CCT). All the above tests with the exception of the slug test are similar in nature. Fluid flows into a limited volume chamber where an increasing back pressure causes the influx from the formation...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 25–28, 1994
Paper Number: SPE-28406-MS
... period and subsequent buildup transient data can be performed to enhance analysis confidence. Introduction Closed Chamber Tests are typically performed as underbalanced perforation and back surge perforation washing in wells or where environment restrictions and safety problems are considered...
Proceedings Papers

Paper presented at the SPE Production Operations Symposium, March 13–14, 1989
Paper Number: SPE-18878-MS
... with buildups performed after the wells were completed. These analysis techniques have also been applied to formation back surge data with similar results. Introduction Evaluation of backsurge pressure response has been conducted from a qualitative standpoint for many years; pressure sensitivity...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 27–30, 1987
Paper Number: SPE-16800-MS
... Abstract Closed chamber tests are commonly performed as back surge perforation cleaning in wells where high surface pressures are not desired. Typical of closed chamber tests are high fluid velocities in the wellbore, and a variable wellbore storage caused by the rapid gas compression...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 5–8, 1986
Paper Number: SPE-15477-MS
... boundaries on the back surge pressure response. chamber test period data pressure response log approximation surge transmissivity field example wellbore storage pressure data flowrate drillstem/well testing air chamber pressure drillstem testing pressure measurement wellbore skin...
Proceedings Papers

Paper presented at the Middle East Technical Conference and Exhibition, March 9–12, 1981
Paper Number: SPE-9653-MS
...' or as a continuous process - so as to put the well on production. This also has specific applications - such production. This also has specific applications - such as an aid to drill stem or production testing in heavy oil reservoirs, back surging, etc. Some of the design considerations for planning a field job...
Proceedings Papers

Paper presented at the Offshore Mediterranean Conference and Exhibition, March 23–25, 2011
Paper Number: OMC-2011-179
.... Deploy an antiswab service tool to maintain constant hydrostatic pressure. During the project, 15 wells were completed with the openhole horizontal gravel-pack technique. All treatments were successfully executed as designed. Production data from the initial back surge confirmed the forecasted well...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2008
Paper Number: OTC-19623-MS
... to provide good flow estimations and basic reservoir parameters, although build-up data with short producing times were difficult to analyze. Combining this method with back surge proved to be very useful for perforation cleaning. However, some conventional sampling and data-collection systems in heavy oil...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference, August 25–27, 2014
Paper Number: SPE-170485-MS
... new procedure) which consist in the following steps: Run TCP string Perforate lower and upper intervals Pick up string &amp; Back surge Control losses Pull out of the hole Rig up and run clean up work string Conclusions The utilization of this optimized TCP string reduced...

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