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Cement slurry extenders

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Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 11–14, 2019
Paper Number: SPE-197930-MS
... as a dynamic effect. Figure 3 shows the evolution of tension at surface as the cement slurry is pumped. The tension on surface increases as slurries are being pumped inside of the casing. The maximum tension on surface will be experienced once all the spacer and slurries are inside the string. When...
Proceedings Papers

Paper presented at the SPE Western Regional Meeting, April 22–26, 2018
Paper Number: SPE-190079-MS
... cement slurries with glass microspheres have gained more popularity due to the excellent compressive strength values achievable at ultra-low densities despite their higher cost compared to water-extended slurries and lightweight slurries containing other lightweight additives like fly ash...
Proceedings Papers

Paper presented at the SPE/CSUR Unconventional Resources Conference, October 20–22, 2015
Paper Number: SPE-175918-MS
... an engineered, high-crush-rated hollow sphere particle as a cement extender, thus providing the slurry with reduced density and increased solid volume fraction upon comparison to conventional slurries. This slurry is used in combination with a fiber-based loss circulation material (LCM.) The combination...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference Canada, November 5–7, 2013
Paper Number: SPE-167203-MS
... as well as clients’ requirements. First series of tests was to find out the effect of Pozzolan on the compressive strength of the slurry. API Class H cement and Type F Pozzolan is used in preparing cement slurries. Extenders were used to minimize the free water in slurry and cubes were cured at 150...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 30–November 2, 2011
Paper Number: SPE-147012-MS
... and logistics within the offshore environment by replacing several additives (such as extender, stabilizer, free fluid, fluid loss, and gas control additives). By simply adjusting the cement:water ratio and MLA concentration, the same base slurries can be tailored to cover all cementing jobs throughout the well...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition and Conference, November 10–13, 2014
Paper Number: SPE-172125-MS
.... Low-density cement slurries (<15.8 ppg), if not foamed or containing lightweight spheres, are mixed with more water than those of conventional densities (15.8 to 16.2 ppg). Therefore these lower-density slurries require an extender (such as bentonite, sodium silicate, or cellulose derivates...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference, August 25–27, 2014
Paper Number: SPE-170562-MS
... lightweight cement slurries, extended with bentonite, sodium silicates, or cellulose derivates, typically show significantly reduced heights when cured at high temperatures. This is as a result of slurry instability or inefficiency of extenders to provide stability ( Figure 4 ) especially in deviated...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 18–21, 2019
Paper Number: SPE-194918-MS
... when compared to the synthetic latex modified, water-extended, and elastomeric slurry designs. The cement-resin composite provided almost twice the shear bond strength and increased tensile strength by 50% compared to other slurry compositions. In the current work, cement-resin composite, synthetic...
Proceedings Papers

Paper presented at the SPE Arctic and Extreme Environments Technical Conference and Exhibition, October 15–17, 2013
Paper Number: SPE-166849-MS
...Figure 4 Thickening time curve for sodium metasilicate extended cement slurry ...
Proceedings Papers

Paper presented at the SPE Thermal Well Integrity and Design Symposium, November 28–December 1, 2016
Paper Number: SPE-182524-MS
... Cement System slurry society of petroleum engineers casing and cementing sg 1 additional testing compressive strength foam slurry help prevent permafrost melt microsphere slurry permafrost melt foam sample water-extended slurry microsphere sample microsphere Thermal wells need...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-275-MS
... formation is used for salt water injection, and isolation of the Mowry also ensures isolation of the Dakota formation below. Review of Cement Slurry Design Options Low density slurry designs can be accomplished in a variety of ways: Conventional and fly ash water extended slurries Cements and fly ash have...
Proceedings Papers

Paper presented at the SPE Latin American and Caribbean Petroleum Engineering Conference, July 27–31, 2020
Paper Number: SPE-199029-MS
... in the annulus by reducing the cement slurry density. Conventionally, class G cement slurry density can be lowered by adding water content to dilute the cement slurry and an extending agent to maintain the slurry stability without free water. With less cementitious material in a barrel of cement slurry...
Proceedings Papers

Paper presented at the Offshore Technology Conference Asia, March 20–23, 2018
Paper Number: OTC-28273-MS
... of liquid beads. This paper compares the gelation time of different liquid-bead formulas and evaluates the performance of cement slurries prepared with liquid beads. Laboratory test data show that the chemical-additive package developed in this study can extend the storage time (shelf life) of liquid beads...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, April 17–19, 2001
Paper Number: SPE-68674-MS
... with bentonite concentrations increased. The Lahad Datu's bentonite had lowered slurry density after the treatments than the Tawau's bentonite. Introduction Cement extender reduces slurry density and lower hydrostatic pressure during cementing operations, which in turn will help prevent the breakdown of weak...
Proceedings Papers

Paper presented at the SPE Pakistan Annual Technical Conference, May 7–8, 2008
Paper Number: SPE-117511-MS
... is to increase water content in cement/water ratio which in tum reduces the amount of high gravity solids and hence reducing the weight ofthe slurry. To avoid particle segregation in increased water systems, extending agents are used as filler components. Extenders are the materials which lower the density...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, October 25–27, 2016
Paper Number: SPE-182239-MS
... covers a density range of 11.5 to 18 lbm/galUS within the temperature range of 27 to 121 deg C. The selected slurries comprise of Class G cement, silica flour with extenders or weighting agents paired with antifoam, fluid loss additives, dispersant and retarder to represent the typical slurry systems...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 23–25, 2018
Paper Number: SPE-192107-MS
..., save time associated with remedial operations, and extend the life of future wells. cement formulation drilling operation cement property casing and cementing displacement low-rate displacement cement slurry annular space mud displacement efficiency ERD well cement chemistry rheology...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 23–April 1, 2021
Paper Number: IPTC-21335-MS
... temperature (BHCT) Flow potential Pipe centralization Cement bonding in oil-based mud (OBM) environment Pumping pressure limitation Cement strength retrogression Absence of bottom wiper plug Limitation of pipe rotation Cement slurry's ability to withstand extended static time Mud...
Proceedings Papers

Paper presented at the Annual Technical Meeting, April 20–23, 1991
Paper Number: PETSOC-91-48
... which does not use any gas as an extender to reduce cement slurry density. Most importantly, the system was developed not by following a quick and easy approach which fur- ther extends t.he classical extended cements. EXTENDING EXTENDED CEMENTS Classically, cement slurry density can be succes- siely...

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