Supercement for Annular Seal and Long-Term Integrity in Deep, Hot Wells "DeepTrek" [electronic resource]
The purpose of this project is to formulate a 'Supercement' designed for improving the long-term sealing integrity in HPHT wells. Phase I concentrated on chemistry studies and screening tests to design and evaluate Portland-based, hybrid Portland, and non-Portland-based cement systems suit...
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Online Access |
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| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C : Oak Ridge, Tenn. :
United States. Dept. of Energy ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
2007.
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| Subjects: |
MARC
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| 245 | 0 | 0 | |a Supercement for Annular Seal and Long-Term Integrity in Deep, Hot Wells "DeepTrek" |h [electronic resource] |
| 260 | |a Washington, D.C : |b United States. Dept. of Energy ; |a Oak Ridge, Tenn. : |b distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, |c 2007. | ||
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| 500 | |a Published through the Information Bridge: DOE Scientific and Technical Information. | ||
| 500 | |a 08/31/2007. | ||
| 500 | |a CSI Technologies. | ||
| 500 | |a Cementing Solutions Incorporated. | ||
| 513 | |a Final; | ||
| 520 | 3 | |a The purpose of this project is to formulate a 'Supercement' designed for improving the long-term sealing integrity in HPHT wells. Phase I concentrated on chemistry studies and screening tests to design and evaluate Portland-based, hybrid Portland, and non-Portland-based cement systems suitable for further scale-up testing. Phase II work concentrated on additional lab and field testing to reduce the candidate materials list to two systems, as well as scaleup activities aimed at verifying performance at the field scale. Phase II was extended thorough a proposal to develop additional testing capabilities aimed at quantifying cementing material properties and performance that were previously not possible. Phase III focused on bringing the material(s) developed in previous Phases to commercialization, through Field Trials, Cost/Benefit Analysis, and Technology Transfer. Extensive development and testing work throughout the project led to Phase III commercialization of two very different materials: (1) Highly-expansive cement (Portland-based), patent pending as 'PRESTRESSED CEMENT'; and (2) Epoxy Resin (non-Portland-based), patent pending. Trade name is Ultra Seal-R. In Phase III, work concentrated on application of the Supercement materials in various increasingly-challenging wells. Previous testing revealed that PRESTRESSED CEMENT, when applied in weak or unconsolidated formations, tends to expand away from the central pipe, restricting the applicability of this material to competent formations. Tests were devised to quantify this effect so the material could be applied in appropriate wells. Additionally, the testing was needed because of industry resistance to expansive cements, due to previous marketing attempts with other materials that were less than successful. Field trials with the Epoxy Resin currently numbers in the hundreds of jobs at up to 295 deg F, with a large percentage being completely successful. Both the PRESTRESSED CEMENT as well as the Ultra Seal-R represent materials fulfilling the objectives of the DeepTrek project. | |
| 536 | |b FC26-03NT41836. | ||
| 650 | 7 | |a Resins. |2 local. | |
| 650 | 7 | |a Design. |2 local. | |
| 650 | 7 | |a Technology Transfer. |2 local. | |
| 650 | 7 | |a Annular Space. |2 local. | |
| 650 | 7 | |a Geothermal Wells. |2 local. | |
| 650 | 7 | |a Materials Testing. |2 local. | |
| 650 | 7 | |a Marketing. |2 local. | |
| 650 | 7 | |a Performance. |2 local. | |
| 650 | 7 | |a Cementing. |2 local. | |
| 650 | 7 | |a Cements. |2 local. | |
| 650 | 7 | |a Materials Science. |2 edbsc. | |
| 650 | 7 | |a Geothermal Energy. |2 edbsc. | |
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