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Leak-<span class="search-highlight">off</span> tube action (right) providing a pathway for fluid flow from <span class="search-highlight">blank</span> ...
Published: 18 February 2004
Figure 4 Leak-off tube action (right) providing a pathway for fluid flow from blank area to screen jacket and installation photo (left). More
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 4–7, 1981
Paper Number: SPE-10184-MS
... to overcome the problem was to conduct "tight hole chamber" DST's (Figure 1). In these tests a blank-off sub is placed at approximately 1000 feet above the shut-in valve, to form a small chamber of approximately 5-10 barrels, the so-called "tight hole chamber" used in the sixties fore the purpose of secrecy...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 23–26, 1979
Paper Number: SPE-8440-MS
... that the use of extended or blanked-off nozzles improve penetration rates. Application of the concept of impact pressure quantitatively shows the improvement in bit hydraulics with extended or banked-off nozzles over bits with] conventional nozzle configurations. A comparison of impact pressure to differential...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Conference and Exhibition, November 11–14, 2012
Paper Number: SPE-161539-MS
... from Hith formation to ARAB Zone D. as it is deviated total of 1170′, with a build up from 58 deg. to 89 deg then horizontalize hole total to 5006′ at 89 deg. In addition, Run and cemented successfully and smoothly the longest 7" of 6628′ slotted and blank off bottom liner with ECP Packer assembly...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 19–22, 2010
Paper Number: SPE-135687-MS
... to isolate the perforations and blank off the active shale section in the open hole. The next hole section was drilled and a GP system was installed. The top of the GP packer was set above the solid expandable liner. The GP assembly and screen were run through the expandable liner into the target zone...
Journal Articles
J Pet Technol 66 (05): 124–128.
Paper Number: SPE-0514-0124-JPT
Published: 01 May 2014
... to increase the hole angle from 90 to 94°, steering up and into an oil-filled formation. The presence of subseismic faults and layers with high water saturations also plays an important role in the decision on where to blank off sections with openhole packers and solid liner joints vs. where to expose...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 27–30, 1987
Paper Number: SPE-16701-MS
.... In addition, a center nozzle was added to the bit to clean the dome and to increase the cone cleaning effects. In order to obtain the crossflow effect, the third nozzle was blanked off such that a high velocity and consequently a forced circulation over the hole bottom was obtained. The influx of kinetic...
Proceedings Papers

Paper presented at the Offshore Europe, September 14–15, 1977
Paper Number: SPE-6687-MS
... by the wellbore pressure acting upon the blanked off cross-sectional area of the tubing. Below this 'balance point' and for the greater part of the well the tubing is simply 'stripped' in or out, the blowout preventers containing the well pressure. For many years, however, operating on live wells was only...
Journal Articles
J Pet Technol 24 (05): 593–598.
Paper Number: SPE-3653-PA
Published: 01 May 1972
... calcium soap that acted as a diverting material for the acid. One year later Halliburton was issued a patent for a diverting material that utilized locust bean gum to gel calcium chloride and sodium chloride for blanking off a zone and thus diverting acid into untreated intervals. Sulfuric acid was used...
Journal Articles
J Pet Technol 60 (06): 88–89.
Paper Number: SPE-0608-0088-JPT
Published: 01 June 2008
... can be blanked off during CT operations that do not require its use. The tool string is 2 1/8-in. OD with a 0.688-in. minimum restriction. Field data show that the restriction has no effect at typical CT pump rates. Ball-operated tools can be run below the tool string, which can pass a ball as large...
Proceedings Papers

Paper presented at the SPE California Regional Meeting, April 11–13, 1984
Paper Number: SPE-12791-MS
... tests indicated a reduction in the drilling rate when confining pressure (hydrostatic pressure) is increased. Smalling and Key studied the optimization of jet bit hydraulics by maximizing the pact pressure The application of this concept with extended or blanked off nozzles over bits with a conventional...
Proceedings Papers

Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the ADIPEC, October 31–November 3, 2022
Paper Number: SPE-211658-MS
...Figure 8 All fractures blanked-off during completion this well (last 2 tracks). ...
Proceedings Papers

Paper presented at the SPE Thermal Well Integrity and Design Symposium, November 23–25, 2015
Paper Number: SPE-178453-MS
... (and, hence, lower fluid viscosities). The height of the liquid column required to drive flow to the production well is reduced accordingly, and so the liquid elevation falls. Figure 12 demonstrates the effect of blanking off 40 m of the production liner when the productivity of the reservoir is uniform...
Proceedings Papers

Paper presented at the Asia Pacific Oil and Gas Conference and Exhibition, October 30–November 1, 2007
Paper Number: SPE-110161-MS
... not indicate any inflow, and the temperature remained constant as expected since this zone is blanked off. In Zone-3, a majority of water influx is evident through rapid increase in temperature logs as well as dispersion of oil through the CAT images. Furthermore, a formation contact/fault can be observed...
Proceedings Papers

Paper presented at the SPE Middle East Oil & Gas Show and Conference, March 8–11, 2015
Paper Number: SPE-172771-MS
.... The research shows that the proppant investigating fracture can blank off the immediate vicinity of wellbore natural fracture to enhance major fracture distance, at the same time can study the fracture development so as to real-time adjust the construction process, in addition to provide diversion support...
Proceedings Papers

Paper presented at the SPE International Oilfield Corrosion Conference and Exhibition, June 16–17, 2021
Paper Number: SPE-205475-MS
...; illustrations may not be copied. The abstract must contain conspicuous acknowledgment of SPE copyright. Acknowledgements Thanks are due to the DCVG company for providing the Electrochemical Noise measuring equipment. Thanks also to Corrocoat (Philip Watkinson) for providing an improved blanking off...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, February 21–23, 2022
Paper Number: IPTC-22688-MS
... ports across dry oil (0% water cut) and/or excellent oil potential compartments. The paper provides workflow for identifying water shut-off compartments and methods to create new ports. Electric-line conveyed tubing sidewall milling tool was found the safe-solution to add ports along non-cemented blank...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 10–12, 2014
Paper Number: IPTC-18220-MS
... the initial planned volumes by 20klbs. Reconfirmation stresses showed very low blank fill / insufficient blank coverage. The final top-up job was performed as a circulating pack instead of a frac pack, successfully packing the casing/screen annulus. Further analysis of the frac pack operation identified...

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