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History/Cement slurry extenders

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Proceedings Papers

Paper presented at the Annual Technical Meeting, June 6–9, 1987
Paper Number: PETSOC-87-38-89
... inloss of cement slurry to the formation and incomplete annular fill. To solve this problem a cement slurry was needed which would have adequatecompressive strength at densities lower than what are typically obtained withstandard water extended cement slurries. Foam cement was chosen because itprovides...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-275-MS
... provide compressive strengths greater than 1,000 psi. Additional practical benefits of these systems are illustrated by varying water content to improve slurry density from 11 to 13.5 ppg without additional cementing additives. Multiple case histories illustrate the results of the applications...
Proceedings Papers

Paper presented at the Offshore Technology Conference Asia, March 20–23, 2018
Paper Number: OTC-28273-MS
... slurries through liquid-additive pumps during a cementing operation. A novel liquid-bead product that can be stored for extended periods of time without separation is presented here along with necessary laboratory testing, actual field applications, and field-application case histories using liquid beads...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 20–22, 2015
Paper Number: SPE-176038-MS
... pressure limitations in designing cenosphere-based cement slurries, a new slurry system had to be designed based on a cautious selection of high-performance engineered glass bubble extenders. The components had to be chosen based on their pressure-resistance performance when the slurry was exposed...
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...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference, February 21–23, 2006
Paper Number: SPE-98124-MS
... the fracture gradient. In less difficult drilling conditions, adding extra water (and necessary water-extending additives that will tie up the extra water) can reduce the slurry density sufficiently to allow the cement to be circulated, reaching the desired TOC. As additional water is added above the standard...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 12–15, 2005
Paper Number: SPE-92090-MS
... to ensure complete casing cement coverage have been ineffective. These methods included using conventionally extended cement slurries as low as 12.6 lbm/gal, using a stage collar to execute the cementing operation in two stages, and performing remedial, top -down cementing operations after completing...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–12, 2005
Paper Number: SPE-94541-MS
... systems used in the past to some very specialized blends used currently. Conventional water- extended cement slurries and their minimum densities of 11.5 12 lb/gal were all that were available until the late 70s when hollow spheres and foam cementing were first introduced. Technology for both foamed...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 3, 2001
Paper Number: SPE-71402-MS
...:3 HCl:HF) for 24 hr at room temperature. Permeability, solids fraction, compressive strength, and acid solubility of the new cement system compared with 12.5- lbm/gal bentonite extended slurry and 15.80-lbm/gal neat cement are illustrated in Tables 1 and 2. Table 3 shows typical slurry properties...
Proceedings Papers

Paper presented at the SPE/IADC Middle East Drilling Technology Conference, October 22–24, 2001
Paper Number: SPE-72286-MS
... history 3 cement property evaluation log compressive strength cement evaluation log cement system acoustic impedance cement and bond evaluation upstream oil & gas drilling fluid management & disposal lbm gal cement chemistry slurry cement formulation acid solubility innovative...
Proceedings Papers

Paper presented at the SPE International Improved Oil Recovery Conference in Asia Pacific, December 5–6, 2005
Paper Number: SPE-97682-MS
..., this class of lightweight slurries was automatically ruled out for the Kuwaiti application. If density alone did not disqualify water extended cements for this application the reduction in quality of the set cement properties would have prevented the use of that much extra water for this application...
Proceedings Papers

Paper presented at the Offshore Mediterranean Conference and Exhibition, March 23–25, 2011
Paper Number: OMC-2011-083
..., and additional operational issues are possible. Real well case histories detailing the design and advantages of the new material are presented, as well as comparisons of the new slurries' effectiveness in an area where previous attempts to circulate cement have failed. BACKGROUND API Class A, G, or H cements...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 7–9, 2009
Paper Number: IPTC-13611-MS
... • 8 ½-in. OH cased by 4 ½-in. production tubingless. • Well profile has J shape. • Maximum well inclination is 30 degree. cement formulation cement chemistry slim hole well casing and cementing drilling phase well architecture History temperature difference slurry long...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 12–15, 2005
Paper Number: SPE-92970-MS
... maximized, while their limitations were minimized. Lightweight Cement Slurries Typically, there are three ways to make lightweight cement: Water extended Microspheres Foam1,2 With the first method, addition of extra water, while the most common method for creating lightweight cements, cannot be used...
Journal Articles
J Pet Technol 32 (08): 1438–1444.
Paper Number: SPE-8256-PA
Published: 01 August 1980
.... Also described are case histories of two successful field tests of a 9.5-lbm/gal bubble cement slurry in an offshore Gulf of Mexico well.Lightweight or low-density cement slurries are used to reduce the hydrostatic pressure exerted by the cement column in wells extending through weak subterranean...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 11–14, 2007
Paper Number: SPE-105340-MS
... cement slurries are used to reduce the hydrostatic pressure on weak formations and to cement lost circulation zones. Examples of low density cements are water extender cements, foam cements and hollow microsphere cements. Water extender cements are limited in density nearly to 11.5 lb/gal. 1 Cement...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 26–28, 2013
Paper Number: IPTC-16592-MS
... necessary qualities for mitigation of shallow hazards are met. Furthermore, logistical and HSE advantages will be highlighted, and two case histories will be discussed. cement property Upstream Oil & Gas slurry property Cement System casing and cementing lightweight system cenosphere...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–29, 2004
Paper Number: SPE-90923-MS
... to achieve with conventional cement technology because conventional slurries tend to settle under downhole conditions after an extended period of quiescence. This instability leads to density segregation and potential formation breakdown in the lower sections of the well. A second obstacle that must...
Proceedings Papers

Paper presented at the Asia Pacific Oil and Gas Conference and Exhibition, October 30–November 1, 2007
Paper Number: SPE-107047-MS
... drilled with partial or complete losses, causing risk during drilling and cementing operations and damaging the producing formation. Also, uncemented columns of casing have developed leaks as a result of corrosive formation fluids. Two-stage cementing with extended slurries and top jobs were the common...
Proceedings Papers

Paper presented at the Latin American & Caribbean Petroleum Engineering Conference, April 15–18, 2007
Paper Number: SPE-107285-MS
... be considered challenging. In this case study, the operator successfully constructed extended reach wells through low fracture gradients under the previously described harsh environment. Attempting to circulate long columns of cement slurry when constructing extended reach drilling (ERD) wells under...

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