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Keywords: cement
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Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 23–April 1, 2021
Paper Number: IPTC-21776-MS
... Abstract Monobore cementation is defined as where a single production tubing size runs from the pay zone all the way to surface and is cemented in place. This type of well design greatly reduce rig time and cost. The challenge however is to achieve a good cement in the annulus as a well barrier...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 23–April 1, 2021
Paper Number: IPTC-21804-MS
... deep water is sometimes unavoidable. One of the crucial factors for a successful well construction operation is to achieve excellent well integrity by having good zonal isolation throughout the target reservoir section. This requires flawless primary cementation from cement job planning, design, and up...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 23–April 1, 2021
Paper Number: IPTC-21367-MS
.... This study considers the barrier element rationale applied in four offshore wells that were plug and abandoned by cap-rock restoration Perforate, Wash, Cement, PWC, barrier plugs. It also considers the operating window of a jet-based PWC technology to understand the challenges and opportunities for...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 23–April 1, 2021
Paper Number: IPTC-21418-MS
... to the caprock area. On top of that, identifying the highest depth for a placement of cement plug will reduce on the amount of plugs to be placed, saving rig time and operational time. So far, 16 idle wells have since been permanently abandoned with the systematic approach of applying caprock...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 23–April 1, 2021
Paper Number: IPTC-21301-MS
... Abstract In offshore Malaysia field, several development wells were drilled and cemented in 2019. The presence of shallow gas zone directly below the surface casing shoe posed a significant challenge to isolate shallow gas flow. A High presence of carbon dioxide (CO 2 ) also increased the...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 13–15, 2020
Paper Number: IPTC-20248-MS
... In this study, the highly sensing chemo-thermo-piezoresistive smart cement behavior as a function of temperature and pressure with a water-to-cement ratio of 0.38 was investigated. Series of quality control, curing, compression and high-pressure high-temperature (HPHT) lab experiments were...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 13–15, 2020
Paper Number: IPTC-19763-Abstract
... to far detectors were used to ascertain the presence of hydrocarbon. Results were compared to the open-hole saturation to identify possible depletion, and differentiate it from annulus-trapped hydrocarbon. Completion was cemented and considered as a new casing. Two self-oriented perforation runs were...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 13–15, 2020
Paper Number: IPTC-19808-ABSTRACT
... The history of float equipment began in 1907, with the development by R.C. Baker of a casing shoe that allowed casing to be cemented in wells. Since that time, major changes in cementing techniques and equipment have taken place to address more challenging applications. This paper reviews the...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 13–15, 2020
Paper Number: IPTC-19779-MS
... Successful cement placement in horizontal wellbores requires solutions for several technical challenges. Zonal isolation provided by cement is considered an important factor for efficient stimulation. A cement system was designed and recently introduced in unconventional developments to...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 26–28, 2019
Paper Number: IPTC-19399-MS
... Abstract With today's low energy prices and with the increasing drive towards sustainability, it is essential to develop more economically efficient and ecofriendly technologies in oil and gas field development. Such a technology is self-healing cement, which was successfully applied in a large...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 26–28, 2019
Paper Number: IPTC-19311-MS
... implement a Data Analytic approach to find out the possible factors contributing to casing failures using both descriptive and supervised ML algorithms. neural network likelihood operation Upstream Oil & Gas cement presence mosaic plot Artificial Intelligence cement proppant concentration...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 26–28, 2019
Paper Number: IPTC-19380-MS
... Abstract A good cement-casing bond is essential for effective zonal isolation in both active and abandoned wells. A new method was developed to monitor the cement-casing bond in real-time and in-situ using a fiber optic distributed temperature and strain sensing (DTSS) system. To demonstrate...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 26–28, 2019
Paper Number: IPTC-19471-MS
... Abstract Providing competent hydraulic isolation between multiple reservoir sections in horizontal wellbores represents a difficult industry challenge. This paper will discuss some of the practices and tools used for cementing production liners in critical horizontal wells. Issues with bore...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 26–28, 2019
Paper Number: IPTC-19478-MS
... Abstract A design approach was developed to obtain an optimum annulus cement barrier during well construction of a 29-well underground gas storage (UGS) project to maximize the longevity of the UGS wells in the years that followed in production state. The effectiveness of this approach was...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 26–28, 2019
Paper Number: IPTC-19109-MS
... Abstract Many challenges exist in ultra-deep high-temperature and high-pressure gas well cementing, such as, high-temperature, active gas layer, narrow density window, and seal integrity failure of cement sheath, which brings huge difficulties in anti-gas channeling cementing. By selecting the...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 26–28, 2019
Paper Number: IPTC-19499-MS
... fluids and materials component 1 assembly drilling fluid management & disposal cement compression test LC zone lcm activator polymer drillpipe assembly tarm international petroleum technology conference wellbore Upstream Oil & Gas Exhibition circulation material fracture...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, November 14–16, 2016
Paper Number: IPTC-18769-MS
... Abstract Well-executed cementing is a key parameter for achieving successful zonal isolation to help ensure long-term integrity of the wellbore. Casing centralization, design of wellbore fluids for maintaining density hierarchy, rheological hierarchy and compatibility, and efficient mud...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, November 14–16, 2016
Paper Number: IPTC-18664-MS
... the reliability of the underground system, i.e. wellbore (tubing, casing and cement sheath) and formation. Firstly the strength and stress functions are established with material parameters and in situ stresses for these four parts. The parameters and forces are random variables in nature so all the...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, November 14–16, 2016
Paper Number: IPTC-18749-MS
... Abstract An HTHP exploration well in a remote location offshore Malaysia required a special cementing system to address the challenges of aggressive CO 2 and H 2 S gasses, as well as downhole temperature and pressure fluctuations due to well testing activities. The objective of the planned...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, November 14–16, 2016
Paper Number: IPTC-18894-MS
... The petroleum industry has made significant investments and extensive research to rectify structural well integrity issues, one particular failure mode relates to the migration of hydrocarbon fluids to surface through microchannels, due to poor cementation, resulting in the inability to...

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