SPE International Conference on Health, Safety, and Environment in Oil and Gas Exploration and Production 1998
DOI: 10.2118/46620-ms
|View full text |Cite
|
Sign up to set email alerts
|

Successful Use of a Synthetic Drilling Fluid in Eastern Venezuela

Abstract: Increased drilling performance and low mud consumption rates have made it economical to drill with an environmentally responsible, synthetic drilling fluid in the Orinoco River Delta, Eastern Venezuela. Initially, water based muds were used. Troublesome shales and claystones, coupled with complex tectonic stresses, were cause for numerous hole cleaning and wellbore instability incidents. It was decided to utilize an invert mud with the knowledge that this would inhibit the swelling mechanism of shales and redu… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

0
4
0

Year Published

1999
1999
2019
2019

Publication Types

Select...
3
2

Relationship

0
5

Authors

Journals

citations
Cited by 5 publications
(5 citation statements)
references
References 6 publications
0
4
0
Order By: Relevance
“…For our purposes, we selected the weakness plane model which is linear and characterized by two constant strength parameters: the cohesion and the friction angle of the weakness planes. To date, the weakness plane model seems to be the most widely used for predicting mud pressures in wellbores drilled in anisotropic rocks ( [4][5][6][7][8][9][11][12][13][14][15][16][17][18][19][20]). This is probably because the cohesion and the friction angle of the discontinuities can be directly determined by direct shear tests.…”
Section: Selection Of Strength Criteria For Rocks With Strength Anisomentioning
confidence: 99%
See 3 more Smart Citations
“…For our purposes, we selected the weakness plane model which is linear and characterized by two constant strength parameters: the cohesion and the friction angle of the weakness planes. To date, the weakness plane model seems to be the most widely used for predicting mud pressures in wellbores drilled in anisotropic rocks ( [4][5][6][7][8][9][11][12][13][14][15][16][17][18][19][20]). This is probably because the cohesion and the friction angle of the discontinuities can be directly determined by direct shear tests.…”
Section: Selection Of Strength Criteria For Rocks With Strength Anisomentioning
confidence: 99%
“…Table 3 reports the types of analyses that we performed. 3 Hoek and Brown criterion; 4 Nova and Zaninetti criterion.…”
Section: Case Studies For the Prediction Of Mud Pressures To Prevent mentioning
confidence: 99%
See 2 more Smart Citations
“…SBM is another type of OBM but it uses a better base fluid which results in lesser environmental issue. It various advantages, such that, higher rate of penetration (ROP), good wellbore stability particularly in shale formation, and lower torque/drag for drill string rotation, has made this mud is preferable [10][11][12].…”
Section: Introductionmentioning
confidence: 99%