WIP Core Research
WIP Core Research is conducted for Members and results are freely accessible to all Members. A set of initial research topics have been identified.
WIP Members will have an advisory role in establishing and guiding the research directions of WIP Core Research. Members have access to restricted sections of the WIP website where preliminary technical information and reports are available.
Level 3 Research, ongoing PhD / 1 Year - A simple low-pressure, low temperature testing device is developed to evaluate the impact of surfactants on cement bond strength under more realistic conditions by allowing mud filtration, filter cake build-up, and controlled spacer and cement placement during the test sequences when operating the device. The test cell is developed as preparation for a HPHT device, introduced in Core Research HPHT Test.
Level 3 Research, ongoing PhD / 1 Year - The concept of a simple low-pressure, low-temperature testing device, developed for WIP Core Research project SurfactBOND, is expanded to evaluate the impact of CO2 on cement bond strength and the degradation of the cement matrix under more realistic conditions. The procedure allows CO2 to invade into the set cement at the interface rock/cement or alternatively, through a punctual entry point at the casing (simulating a casing leakage) as well as through mud channels during the test sequences when operating the device. The test cell is developed as preparation for a HPHT device, introduced in Core Research HPHT Test.
Project HPHT Test
Level 1 Research / 1 Year - Integrity of annular sealant materials will be tested in a HPHT test cell designed to simulate casing expansion and contraction from downhole operations. The cell can also be modified to simulate the combined effect of downhole chemicals such as CO2. The formation material can be changed as needed to simulate soft to hard formation. The size of the cement sheath, including eccentricity can also be simulated. The cell could also be modified to test integrity of non-cement barrier elements.
Level 1 Research / 1 Year - The proper functionality of non-cement wellbore seal barriers is of fundamental importance for well integrity. Non-metallic elastomer and metal-to-metal seals are common in use. Core Research ContactSTRESS intends to find physical and chemical conditions under which non-metallic and metal-to-metal seals will properly function or might fail. Special attention is given to pipe connectors, packers and wellhead installations. Core Research ContactSTRESS will identify the best available solutions but also will look into research gaps and design improvements based on which possible future research topics will be proposed.
Level 1 Research / 1 Year - The use of cement as sealing material between wellbore casing and formation rock is a proven technology since the early 20th century. Not much has changed since that time because cement is cheap and available everywhere. However, as the requirements for well integrity has changed dramatically during the last decades, research has also been focused on functional smart materials that can be easily pumped in place, solidified under controlled conditions, and are inert to corrosive environments where standard cements would fail. In addition, the use of resin to selectively plug fractures in highly naturally fractured zones must be better understood. AlternaSEAL will focus on such materials with an emphasis on magneto-rheological cements, fiber-reinforced cement materials and cement alternatives like resins. The goal of AlternaSEAL is to find research gaps for such materials.
Project Lost Circulation
Level 1 Research / 1 Year - The objective of this research is to develop a lost circulation treatment matrix that will match conventional and state-of-the-art methods to cure losses in various loss situations, caused by different loss mechanism at certain wellbore configurations. The application of the matrix will allow to identify the proper design and the most effective loss control strategy. In addition, Core Research Lost Circulation will discuss the critical issue of accurately detecting the problem in real-time during it’s initiation phase with the goal to minimize the reaction time and quickly setting the proper measures.
Level 1 Research / 6 Months - Mixing length, rheology of the mixed zone and how these key parameters affect the mud removal, cement slurry placement and resulting zonal isolation is studied in Core Research DISPLACE using both computational fluid dynamics (CFD) and laboratory measurements in three stages.
Stage 1 (Level 1, 6 months) will discuss the state-of-the-art in modeling displacement and dispersion with CFD during cement placement.
Rheological parameters of mud-spacer-cement mixtures in varying concentrations will be determined in the lab and used as input for the computational model in Stage 2. In stage 2 of the project the relationship between dispersion coefficient and mixing length will be studied, assisted by minor experimental setups and lab measurement.
An extensive study could be undertaken subsequently in Stage 3 to define the dispersion coefficient in more detail, and to analyze the effect of different chemical additives and ways to optimize this parameter. In the Stage 3 it is also proposed that the mathematical CFD model will be validated by experimental flow-loop observations.
Level 1 Research / 3 Stages / 1 Year - Well Integrity Expertise solution (WINEX) will assure efficient use of extensive dynamic, episodic and static data and information to transform them into relevant knowledge and to generate proper and pro-active strategic decisions to provide safe wells operation, fulfilling asset management challenges, achieving optimum production targets and integration into existing intelligent oilfield solutions. WINEX will find an optimized procedure to analyze the data from wells with the goal to improve WIMS with a new problem recognition tool.
Stage 1 (Level 1, 6 months) will identify historical and RT wellbore data for improved well integrity problem recognition.
Stage 2 (Level 1, 6 months) will perform a quality analysis of example well data for proposed problem recognition tool.
Stage 3 (Level 2, 12 - 24 months) will cover the implementation of a new well integrity problem recognition tool into WIMS and a demonstration of the working concept.
Level 1 Research / 1 Year - Core Research P&A will focus on rig-less operations, will evaluate sealant placement procedure, methods for casing milling, length of different sealants needed and contamination for P&A.
The project discusses the state-of-the-art and gaps in rig-less P&A, focusing on casing milling and sealant placement. Alternate rig-less casing milling technology will be evaluated in a in lab setup. Sealant placement procedures will be investigated and ways to avoid contamination and reduce time and cost. in an extendes stage it is also proposed to verify and validate alternate milling technology in simulated field condition. The sealant placement procedure and barrier length needed will be validated.
Level 1 Research / 6 Months - Evaluate methods to sense TOC and integrity of barriers in real-time. The state-of-the-art and research gaps in fiber optical and distributed sensing technology and method to monitor and communicate TOC in RT will be discussed.