Experimental Investigation of the Effect of Drilling-Fluids/Clay-Minerals Interaction on Resistivity, Acoustic velocity, and Log-Derived Porosity

2000 ◽  
Author(s):  
Xiangjun Liu ◽  
Pingya Luo ◽  
Yijian Cheng
Keyword(s):  
Experimental Investigation ◽  
Clay Minerals ◽  
Acoustic Velocity ◽  
Drilling Fluids

Experimental investigation on size degradation of bridging material in drilling fluids

2019 ◽  
Vol 342 ◽  
pp. 54-66 ◽  
Author(s):  
Yili Kang ◽  
Qigui Tan ◽  
Lijun You ◽  
Xiwen Zhang ◽  
Chengyuan Xu ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Drilling Fluids

Theoretical and experimental investigation on the intercalation of metformin into layered clay minerals

2020 ◽  
Vol 186 ◽  
pp. 105418 ◽  
Author(s):  
Ediana Paula Rebitski ◽  
Margarita Darder ◽  
C. Ignacio Sainz-Diaz ◽  
Raffaele Carraro ◽  
Pilar Aranda ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Clay Minerals ◽  
Layered Clay

Determination of the Cation Exchange Capacity of Clays by Surface Tension Measurements

Clay Minerals ◽  
1993 ◽  
Vol 28 (3) ◽  
pp. 475-481 ◽  
Author(s):  
G. Burrafato ◽  
F. Miano
Keyword(s):  
Surface Tension ◽  
Cation Exchange ◽  
Clay Minerals ◽  
Cation Exchange Capacity ◽  
Mixing Time ◽  
Aqueous Suspension ◽  
Exchange Capacity ◽  
Drilling Fluids ◽  
Accurate Analysis

AbstractThe cation exchange capacity (CEC) of clay minerals has been determined by titration of aqueous suspension of clays with hexadecylpyridinium chloride, monitored using surface tension measurements. In order to make the method suitable for an accurate analysis of the CEC of the clays in drilling fluids or in soils, some parameters affecting the CEC determination (e.g. the presence of carboxymethylcellulose, mixing time and measurement device) have been investigated.

Experimental investigation on the role of kerogen and clay minerals in the formation of bitumen during the oxidation of Boom Clay

Fuel ◽  
2012 ◽  
Vol 97 ◽  
pp. 344-351 ◽  
Author(s):  
P. Blanchart ◽  
P. Faure ◽  
M. De Craen ◽  
C. Bruggeman ◽  
R. Michels
Keyword(s):  
Experimental Investigation ◽  
Clay Minerals ◽  
Boom Clay

scholarly journals Degradation of Reservoir Quality by Clay Content, Unayzah Formation, Central Saudi Arabia

GeoArabia ◽  
1997 ◽  
Vol 2 (1) ◽  
pp. 49-64
Author(s):  
George R. Polkowski
Keyword(s):  
Saudi Arabia ◽  
Clay Minerals ◽  
Clay Content ◽  
High Water ◽  
Weight Percent ◽  
Control Measures ◽  
Reservoir Rock ◽  
Formation Damage ◽  
Drilling Fluids ◽  
Iron Hydroxides

ABSTRACT Reservoirs in Central Saudi Arabia are important new sources of light sulfur-free crude oil. Development work on these wells has shown the adverse effect of authigenic clay minerals on their productivity or injectivity. The clay minerals may be affected during drilling of the well, during completion, during production, and/or injection. Kaolinite, chlorite, illite, and ordered and random mixed layer illite/smectite are commonly occurring authigenic clay minerals within the Permian Unayzah reservoir rock. As little as 2 weight percent clay causes permeability to be drastically reduced. Formation damage due to clay minerals results from: (1) swelling of smectite caused by injection water or drilling fluids of low salinity; (2) clay mineral migration and subsequent pore blockage; (3) precipitation of gelatinous pore-blocking iron hydroxides caused by the dissolution of chlorite by acid; (4) high water saturations; and (5) disaggregation of poorly consolidated parts of the reservoir into its component sand grains if the weak clay cements are disturbed. The implementation of clay control measures has resulted in increased production while minimizing formation damage.

Experimental Investigation of Mechanical Friction and Hydraulics for Liner Drilling and Liner Running

2016 ◽  
Author(s):  
Jan David Ytrehus ◽  
Ali Taghipour ◽  
Bjørnar Lund ◽  
Knud Richard Gyland ◽  
Arild Saasen
Keyword(s):  
Experimental Investigation ◽  
Friction Coefficient ◽  
Drilling Fluid ◽  
Drill Pipe ◽  
Drilling Fluids ◽  
Flow Loop ◽  
Cuttings Transport ◽  
Transport Efficiency ◽  
Sand Particles ◽  
Norwegian Continental Shelf

The mechanical friction of liner operations is investigated and compared to what is expected for a conventional drill pipe. In addition the cuttings transport efficiency for realistic conditions is studied. The work is also relevant for running completion strings. This article is based on results from laboratory scale flow loop for drilling applications. Sand particles were injected while circulating the drilling fluid through the test section in some of the tests. The procedures used to conduct the experiments are explained and experimental results and observations are discussed. The drilling fluids and additives in these experiments are similar to those used in in fields on the Norwegian Continental Shelf (NCS). Friction coefficient is calculated from the measured torque for different flow velocities and rotational velocities and the force perpendicular to the surface caused by the buoyed weight of the string.

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