Carbon capture and storage (CCS) is broadly recognised as having the potential to play a key role in meeting climate change targets, delivering low carbon heat and power, decarbonising industry and, more recently, its ability to facilitate the net removal of CO2 from the atmosphere. However, despite this broad consensus and its technical maturity, CCS has not yet been deployed on a scale commensurate with the ambitions articulated a decade ago. Thus, in this paper we review the current state-of-the-art of CO2 capture, transport, utilisation and storage from a multi-scale perspective, moving from the global to molecular scales. In light of the COP21 commitments to limit warming to less than 2 °C, we extend the remit of this study to include the key negative emissions technologies (NETs) of bioenergy with CCS (BECCS), and direct air capture (DAC). Cognisant of the non-technical barriers to deploying CCS, we reflect on recent experience from the UK's CCS commercialisation programme and consider the commercial and political barriers to the large-scale deployment of CCS. In all areas, we focus on identifying and clearly articulating the key research challenges that could usefully be addressed in the coming decade.

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Carbon capture and storage (CCS): the way forward

A copy of Guangbo jiemu bao [Broadcast Program Report] was being passed from hand to hand among a group of young people eager to be the first to read the article introducing the program "What Is Revolutionary Love?" It said: "… Young friends, you are certainly very concerned about this problem'. So, we would like you to meet the young women workers Meng Xiaoyu and Meng Yamei and the older cadre Miss Feng. They are the three leading characters in the short story ‘The Place of Love.’ Through the description of the love lives of these three, the story induces us to think deeply about two questions that merit further examination.

This is How the Discussion Started

Recent developments in the direct-current geoelectrical imaging method

• Stability of steady frictional sliding, inertia and the quasi-static limit • work on ps 4; see course web site

The Mechanics Of Earthquakes And Faulting

A solution is presented for the change in water level in a well of finite diameter after a known volume of water is suddenly injected or withdrawn. A set of type curves computed from this solution permits a determination of the transmissibility of the aquifer.

Response of a finite-diameter well to an instantaneous charge of water. Paper No. H-21

Observations of fracture propagation during decameter-scale hydraulic fracturing experiments

Microseismicity observed during small-scale hydraulic fracturing experiments at the Grimsel Test Site

.................................................................................................................................. vii 1\t\r   Introduction ........................................................................................................................ 1 1.1\t\r   Introduction to hydrogeophysics ................................................................................... 2 1.2\t\r   Geophysical methods for aquifer characterization ........................................................ 3 1.3\t\r   The record project and the Thur River field sites .......................................................... 5 1.4\t\r   Data integration ............................................................................................................. 8 1.5\t\r   Time-lapse inversion ................................................................................................... 12 1.6\t\r   Objectives and structure of this thesis ......................................................................... 15 2\t\r   Aquifer zonation based on joint inversions .................................................................... 17 Abstract ................................................................................................................................. 18 2.1\t\r   Introduction ................................................................................................................. 18 2.2\t\r   Methodology ................................................................................................................ 21 2.3\t\r   Field site, parameters, and procedures common to the synthetic and field examples . 26 2.4\t\r   Synthetic example ........................................................................................................ 30 2.5\t\r   Field example .............................................................................................................. 34 2.6\t\r   Hydrogeophysical interpretation ................................................................................. 38 2.7\t\r   Discussion .................................................................................................................... 41 2.8\t\r   Conclusions ................................................................................................................. 42 3\t\r   Structural time-lapse joint inversion ............................................................................. 43 Abstract ................................................................................................................................. 44 3.1\t\r   Introduction ................................................................................................................. 44 3.2\t\r   Methods ....................................................................................................................... 45 3.3\t\r   Results ......................................................................................................................... 47 3.4\t\r   Concluding remarks ..................................................................................................... 53

Joseph Doetsch

Papers

Observations of fracture propagation during decameter-scale hydraulic fracturing experiments

Microseismicity observed during small-scale hydraulic fracturing experiments at the Grimsel Test Site

Geophysics Dissertation AbstractsJoint and constrained inversion of geophysical data for improved imaging of aquifer structure and processes

Combining 3-D GPR and ERT surface data for aquifer characterization at a restored river section

Data collection for the Grimsel In-Situ Stimulation and Circulation (ISC) experiment