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Keywords: cement
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Proceedings Papers

Paper presented at the SPE Americas Unconventional Resources Conference, June 5–7, 2012
Paper Number: SPE-152730-MS
... TABLE 4 COMMON PROPERTIES TO UNDERSTAND STRESS STATE OF CEMENT AND ABILITIY OF CEMENT SHEATH TO WITHSTAND MOST FAILURE MODES Property Description Latex Design (psi) Conventional Design (psi) Young’s modulus, E Linear slope of the stress-strain relationship...
Proceedings Papers

Paper presented at the SPE Americas Unconventional Resources Conference, June 5–7, 2012
Paper Number: SPE-153142-MS
.... The fresh water aquifer extended from 120’ to 345’. Casing was cemented with 300 sacks of class A cement. There were no cement returns and the casing was grouted from surface with the aid of a cement basket run just above the aquifer. Intermediate casing was 8 5/8“, set at 1010’ and cemented to surface...
Proceedings Papers

Paper presented at the Tight Gas Completions Conference, November 2–3, 2010
Paper Number: SPE-137441-MS
... Abstract Stimulation-design considerations usually include things like formation-fracture gradient, reservoir pressure, stress, casing size, perforation schemes, etc. The type of cement that fills the annular space between the openhole lateral and the casing is not typically considered...
Proceedings Papers

Paper presented at the CIPC/SPE Gas Technology Symposium 2008 Joint Conference, June 16–19, 2008
Paper Number: SPE-115004-MS
...New Environmental-Friendly Cement System Variable densities from 1200 to 1900 kg/m 3 Thickening times from several minutes to several hours Superior early and late strength development Fast gel strength development Controlled fluid loss Enhanced flexibility and elasticity...
Proceedings Papers

Paper presented at the CIPC/SPE Gas Technology Symposium 2008 Joint Conference, June 16–19, 2008
Paper Number: SPE-114759-MS
... be cemented which has caused constraints on optimal reservoir production. Studies have indicated that conventional cements are one of the primary causes resulting in reduced fracture initiation. Acid-soluble cements have been advocated for use in unconventional gas reservoirs as a means to reduce the rate...
Proceedings Papers

Paper presented at the CIPC/SPE Gas Technology Symposium 2008 Joint Conference, June 16–19, 2008
Paper Number: SPE-114866-MS
... In the three-step approach, design is selected, modeling is performed, and a software model confirms the required mechanical properties required for the well. Laboratory tests validate the results and a tertiary protective "react and respond" cement slurry system is prepared ( Bosma 1999...
Proceedings Papers

Paper presented at the CIPC/SPE Gas Technology Symposium 2008 Joint Conference, June 16–19, 2008
Paper Number: SPE-115003-MS
..., and circulation is continuous throughout the job. Once the operator tags the cement during a free fall event, resumption of circulation can exert sufficient force on the bottom of the wellbore to exceed the frac gradient and initiate loss of circulation. During free fall, there is a period of time when...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, May 15–17, 2006
Paper Number: SPE-100572-MS
... Abstract A new method of completing multiple-layer tight gas wells is being investigated. The main concept is to place sliding sleeve valves in the casing string and complete the well with normal cementing operations. The sliding sleeves would then be opened one at a time to fracture layers...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, April 30–May 2, 2002
Paper Number: SPE-75700-MS
...Introduction The main purpose of the annular cement is to provide effective zonal isolation for the life of the well so that oil and gas can be produced safely and economically. To achieve this objective, the drilling fluid should be removed from both the wide and narrow annulus and the entire...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, April 30–May 2, 2002
Paper Number: SPE-76333-MS
...Poor Mud Displacement CVF can also achieve a firm foothold if mud displacement during the primary cementing operations is poor. A primary requisite for lowering the chances of CVF is effective mud displacement, 13 which provides a relatively clean pipe and formation surface to which...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, March 15–18, 1998
Paper Number: SPE-40036-MS
... that casing leaks, cement channels, coning, and watered-out reservoirs may all be easily identified and located through the use of openhole, production, pulsed neutron, casing inspection, and cement evaluation logs. Not all of these logs need be run in every well; thus, in each well, existing information...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, April 28–May 1, 1996
Paper Number: SPE-35587-MS
... and CT electric line logs of all types Capacity Sustainment - Stimulations, perforating, fill clean-outs, nitrogen lifts. Gas & Water Shut-offs - Cement and chemical squeezes, mechanical and inflatable plugs, mechanical straddles. Injection Control - Profile modifications with cement, chemicals...

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