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Keywords: stability
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Proceedings Papers

Paper presented at the SPE/IADC International Drilling Conference and Exhibition, March 8–12, 2021
Paper Number: SPE-204091-MS
... this technology. Completion damage potential was assessed using specialized stability and mobility testing in cells equipped with screen coupons. This equipment is described by Ibragimova et al. (2018) . It could be experimentally shown that the qualified OCFOBDF system weighted with micron sized...
Proceedings Papers

Paper presented at the IADC/SPE International Drilling Conference and Exhibition, March 3–5, 2020
Paper Number: SPE-199596-MS
... that another mechanism was playing a role in the failure of the shales. This study investigated the drilling fluid properties that are known to affect shale stability. One fundamental property investigated was the water phase salinity, as shales can act as osmotic membranes, allowing fluid diffusion...
Proceedings Papers

Paper presented at the IADC/SPE International Drilling Conference and Exhibition, March 3–5, 2020
Paper Number: SPE-199665-MS
... fracture gradient of 0.95 sg (7.9 ppg). These conditions required a drilling fluid which could be maintained at a density as low as 0.78 sg (6.5 ppg) combined with a low viscosity, strict fluid loss control, tolerance towards contamination of chalk and high stability. No conventional drilling fluid would...
Proceedings Papers

Paper presented at the IADC/SPE International Drilling Conference and Exhibition, March 3–5, 2020
Paper Number: SPE-199650-MS
... Abstract Wellbore instability is one of the most consequential drilling operation risks. Planning a trajectory without knowing the wellbore instability risk can be costly during operations. It is critically important for engineers to be able to validate wellbore stability coherently when...
Proceedings Papers

Paper presented at the SPE/IADC International Drilling Conference and Exhibition, March 5–7, 2019
Paper Number: SPE-194137-MS
... storage modulus rheological property organoclay drilling fluid selection and formulation Upstream Oil & Gas viscosity stability drilling fluid chemistry drilling fluid formulation viscosifier layered material organic functionality organic-inorganic hybrid oil-based drilling fluid high...
Proceedings Papers

Paper presented at the SPE/IADC International Drilling Conference and Exhibition, March 5–7, 2019
Paper Number: SPE-194128-MS
... stability target well lateral vibration Roy chowdhury application Gulf drilling efficiency The Gulf of Mexico has long been an important oil and gas basin. The bit runs discussed in this paper occurred in Gulf of Mexico wells located in over 2,500 ft of water. The deepwater offshore location...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference and Exhibition, March 6–8, 2018
Paper Number: SPE-189633-MS
... intended purpose is maintaining cuttings integrity, promoting borehole stability or avoiding reservoir incompatibility to name a few. This paper points out the various pitfalls and problems associated with conventional tests such as atmospheric swelling tests and capillary suction time tests, which still...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference and Exhibition, March 6–8, 2018
Paper Number: SPE-189577-MS
... systems with measurements of total and surface charge. Various combinations of CNF with assorted hydrocolloids were tested with measurements of complex rheology, dispersion stability, NFC/biopolymer interaction, and filtration (API low-pressure/low-temperature test). Nanocelluloses are a new...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference and Exhibition, March 6–8, 2018
Paper Number: SPE-189628-MS
... to minimizing losses in highly fractured formations. Historically, MMH properties break in the presence of anionic materials, such as coal, deflocculants, anionic polymers as well as at elevated salinity. The robust MMH system discussed offers greater stability and lower risk of failure associated...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference and Exhibition, March 6–8, 2018
Paper Number: SPE-189682-MS
... results of using a conventional spacer in HPHT wells will lead to some risks such as barite settling, fluids intermixing and cement slurry contamination. To overcome these challenges, a new technology, which is an aqueous spacer system with spacer stabilizer, has been developed to withstand temperatures...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference and Exhibition, March 6–8, 2018
Paper Number: SPE-189667-MS
... Full-scale laboratory testing has given the ability to demonstrate the lateral stability of the as built PDC bit, ( Cooley et all 1992 ). The atmospheric testing facility, uses a bit test protocol to drill at multiple DOC steps. Lasers are used to measure the bit stability through the...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference and Exhibition, March 14–16, 2017
Paper Number: SPE-184595-MS
... achievement and deployment of this record system. wellbore integrity lateral lower completion liner system reservoir Wellbore Design borehole BHA breakout Upstream Oil & Gas Exhibition rotation cleaning drilling operation ICD screen horizontal stress stability wellbore instability...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference and Exhibition, March 14–16, 2017
Paper Number: SPE-184609-MS
... strengthening mechanism, in which the stability of both the existing fracture wings and the wellbore wall are considered. The stability of the wellbore wall is secured by an effective wellbore stress redistribution, which helps prevent initiation of secondary fractures from the wellbore. Simultaneously, the...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference and Exhibition, March 14–16, 2017
Paper Number: SPE-184670-MS
... Artificial Intelligence drilling fluid drilling operation optimization problem Efficiency control system drilling performance chalk resistivity drilling condition stability chalk section clean chalk bit selection Upstream Oil & Gas correlation lower chert bit trip chert...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference and Exhibition, March 1–3, 2016
Paper Number: SPE-178766-MS
... near wellbore, including the mechanisms, rates, affecting factors, and impact on shale stability. Pre-test core studies provided insight into rock composition, structure, fracture distribution, water activity, and pore-fluid composition. Pore-fluid transmission tests were conducted on preserved shale...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference and Exhibition, March 1–3, 2016
Paper Number: SPE-178819-MS
... generate or influence drillstring vibration, including the energy inputs of weight on bit (WOB) and torque (TRQ), bit type, BHA design and stabilization, lithology type, geological structures, bit-lithology interaction, borehole size and BHA size, hole trajectory, backreaming or rotating off bottom, hole...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference and Exhibition, March 1–3, 2016
Paper Number: SPE-178874-MS
... oscillations is achieved. Even small changes in the drilling system design have a visible impact on the torsional stability. The ability to identify and predict modes of stick/slip and HFTO that are most likely to be excited while drilling, an extension of the stable drilling zone and the estimation of loads...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference and Exhibition, March 17–19, 2015
Paper Number: SPE-173048-MS
... specialized hollow cylinder (HC) laboratory tests on a field shale core. While subject to a confining stress and an applied pore pressure, the borehole pressure has been systematically varied according to scaled-down field conditions to simulate the effect of ECD vs. ESD at connection on borehole stability...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference and Exhibition, March 17–19, 2015
Paper Number: SPE-173008-MS
... full suite of drilling tools to optimize a BHA for a specific application. Four criteria are used to evaluate BHA performance during simulations: stability; robustness/reliability; measurement quality; steerability. Simulations are run to determine each configuration's potential for axial, lateral...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference and Exhibition, March 17–19, 2015
Paper Number: SPE-173017-MS
...-based drilling fluids are particularly advantageous compared to conventional water-based systems because they offer faster rates of penetration (ROPs), enhanced hole cleaning and shale inhibition, and improved wellbore stability. Most HP water-based drilling fluids can only tolerate operating...

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