1-20 of 2108 Search Results for

Cement composition and classification

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 15–17, 2018
Paper Number: SPE-191591-18RPTC-MS
... – classification. The first “branch" of scheme includes the analysis of rock-forming minerals. For these purposes, the segmentation of grains (rock-forming and accessory, primary cement is not considered) is carried out. Further, each segmented object is classified by mineral composition [Cl1] according...
Proceedings Papers

Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-396
... and therein lies one of the most challenging aspects in shale slope characterisation for engineering purposes. They have been classified as "rock-like" or "soil-like", (Underwood 1967) or compacted and cemented, Table 1, Yagiz (2001). Classifications have considered numerous factors including composition...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13117
... composition, concrete cover, and most recently, type of reinforcement. In detail, specifications are set on the maximal water-to-binder ratio, minimal cement content, minimal concrete resistivity, minimal compressive strength, maximal crack width and upper limit for chloride content in the fresh concrete...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2018, May 22–26, 2018
Paper Number: ISRM-EUROCK-2018-162
... levels and decreased bearing capacity of the rock. Negative effect of changing redox conditions on rocks with a cement containing elements with variable valences has been detected. There are given the results of experimental research of weathered Lower Cambrian sandstones, which in anaerobic environment...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 23–April 1, 2021
Paper Number: IPTC-21436-MS
...-composition, rock-texture, cementation, and compaction. Thus,the commonly used permeability equation of Kozeny-Carman (KC) equation still can be used but it needs to be modified for better connecting FZI to hydraulic-flow-units. The modified KC equation incorporates heterogeneous poregeometry as a non-linear...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-463
... Abstract Multiscale characteristics of anisotropic, heterogeneous pore structure and compositional (e.g., kerogen, clay, cement, etc) distribution profoundly influence the hydro, mechanical, and chemical response of shale materials during stimulation and production. In this work the impact...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference and Exhibition, October 24–26, 2016
Paper Number: SPE-181950-MS
... process, requirements to compositions for insulation works are getting more strictly also. So, among other things, features of carrying out insulation work are: – no need of additional equipment; – no need to change the working layout; – no need long time waiting on cement; (TWZ...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 13–16, 2017
Paper Number: SPE-188957-MS
... flowability segregation cement formulation classification fine silica cement blend flowability slurry performance particle proneness cement property Upstream Oil & Gas concentration coarse silica robustness powder metal-oxide particle silica magnesium oxide hematite fine metal-oxide...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 16–18, 2017
Paper Number: SPE-187885-MS
... the structural description of thin sections and rock classification based on images obtained from polarized optical microscope. To evaluate the properties of structural objects in thin section (grain, cement, voids, cleavage), first they are segmented by watershed method with advanced noise reduction, preserving...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 1–4, 2000
Paper Number: SPE-63208-MS
... becomes a very fine-grained calcite called micrite. Cement is the crystalline material that forms in most of the space remaining between grains and matrix or between grains themselves, binding them. Cements may have a variety of crystal sizes depending on its composition, the conditions of crystallization...
Proceedings Papers

Paper presented at the ISRM International Symposium - 5th Asian Rock Mechanics Symposium, November 24–26, 2008
Paper Number: ISRM-ARMS5-2008-005
... Argillaceous sedimentary rocks are the most common rock type in sedimentary basins. These rocks are formed by compaction and cementation of clastic, fine-grained sediments and its engineering behavior is highly dependant upon composition, micro-fabric and saturation state. Shale, mudrock, mudstone, claystone...
Proceedings Papers

Paper presented at the SPE/DGS Saudi Arabia Section Technical Symposium and Exhibition, May 15–18, 2011
Paper Number: SPE-149104-MS
... be larger, equal, or smaller than the cementation exponent of only the matrix blocks ( m b). This variation depends on the relative contribution of natural fractures and non-touching vugs compared to the composite triple porosity reservoir. A continuous curve of m values is obtained using this model...
Proceedings Papers

Paper presented at the 5th ISRM Congress, April 10–15, 1983
Paper Number: ISRM-5CONGRESS-1983-049
...-structure of sandstone roof of seam No.2, Datong Coal Area had been completed so as to explore a safe and economic way for hard Sandstone roof control. 1.1 Rock micro-structure Based on rock composition, the sandstone roof of seam No. 2 can basically be divided into two categories: clay cemented arkose...
Proceedings Papers

Paper presented at the SPE Eastern Regional Meeting, October 17–19, 2000
Paper Number: SPE-65621-MS
... the highest degree of reproducibility. Reality is each mill run differs from the next and even small variations in cement composition can require a change in additive concentrations to produce the same results, i.e., thickening time, compressive strength and fluid loss. 3 The complexity of oil and gas well...
Proceedings Papers

Paper presented at the SPWLA 52nd Annual Logging Symposium, May 14–18, 2011
Paper Number: SPWLA-2011-PP
... and other cements. In order to constrain the petrophysical models for the oil reservoirs in the Eromanga Basin, an extensive petrological study was proposed, incorporating thin sections analysis, X-Ray diffraction (XRD) and Scanning Electron Microscopy (SEM) to quantify the mineralogy and pore structure...
Journal Articles
J Pet Technol 42 (11): 1364–1373.
Paper Number: SPE-20816-PA
Published: 01 November 1990
..., and the composition and fineness of thecement and slurry formulations. Test procedures and specifications for theperformance of various types of Portland cement in construction work aremaintained by the American Society of Testing Materials (ASTM). The oilindustry determined that the ASTM tests were inadequate...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 17–19, 2017
Paper Number: SPE-186224-MS
... and to continuously improve quality and field handling of engineered complex blends with high confidence and consistency. cement property Upstream Oil & Gas cement composition proneness robustness cement formulation blend flowability segregation spe annual technical conference handling innovative...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 3–5, 2008
Paper Number: IPTC-11997-MS
... was achieved with swelling packers to cased-hole completions. Up to 22% of the rig time was saved due to the elimination of running casing, cementing, using whipstock and casing milling. To date, all wells completed with oil swelling packers are showing good results for close to three years. Introduction...
Journal Articles
J Pet Technol 14 (03): 323–328.
Paper Number: SPE-152-PA
Published: 01 March 1962
... method using standard viscometric equipment is suggested for determination of the rheological properties of slurries, and data are presented on some of the more common cementing compositions. A criterion for divergence from laminar-flow characteristics has been proposed. Usefulness of the calculations...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-184485-STU
... Total Volume, Tail Slurry Total Volume, Lead Slurry Composition (quantity of cement & cement additives), Tail Slurry Composition (quantity of cement & cement additives), Lead Slurry Composition (Dead Volume), Tail Slurry Composition (Dead Volume) and finally the Chemicals required for performing...

Product(s) added to cart

Close Modal