Plasma chemistry derived relation between arc and spark for pulse power drilling
AssigneeHalliburton Energy Services, Inc.
InventorMathew Dennis Rowe
Life of this patent
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Abstract
A concentration of at least one chemical reaction product in a drilling fluid is determined after the drilling fluid has interacted with a plasma discharge produced via one or more electrodes of a drill bit of a pulse power drill string disposed in a wellbore for drilling the borehole. The concentration of the at least one chemical reaction product is correlated to a relation between an arc and a spark of the plasma discharge. The relation between the arc and spark can subsequently be evaluated to determine updates to pulse power drilling parameters and/or to perform formation and drilling fluid evaluation.
Claims20
A method comprising:
- determining a concentration of at least one chemical reaction product in a drilling fluid after the drilling fluid has interacted with a plasma discharge produced via one or more electrodes of a drill bit of a pulse power drill string disposed in a borehole for drilling the borehole;
- and
- correlating the concentration of the at least one chemical reaction product to a relation between an arc and a spark of the plasma discharge.
A non-transitory, computer-readable medium having instructions stored thereon that are executable by a computing device, the instructions to:
- determine a concentration of at least one chemical reaction product in a drilling fluid after the drilling fluid has interacted with a plasma discharge produced via one or more electrodes of a drill bit of a pulse power drill string disposed in a borehole for drilling the borehole;
- and
- correlate the concentration of the at least one chemical reaction product to a relation between an arc and a spark of the plasma discharge.
A system comprising:
- a pulse power drill string configured to be positioned in a borehole formed in a subsurface formation, wherein the pulse power drill string comprises a drill bit with one or more electrodes to periodically emit an electrical discharge to drill the borehole;
- a sample extractor configured to collect a sample of drilling fluid that circulated down the borehole and that interacted with the electrical discharge;
- an analysis system configured to determine a concentration of at least one chemical reaction product in the sample of drilling fluid;
- a processor;
- and
- a computer-readable medium having instructions stored thereon that are executable by the processor to cause the processor to,
- determine a concentration of at least one chemical reaction product in a drilling fluid after the drilling fluid has interacted with a plasma discharge produced via the one or more electrodes of the drill bit of the pulse power drill string;
- and
- correlate the concentration of the at least one chemical reaction product to a relation between an arc and a spark of the plasma discharge.
Dependencies are inferred from the claim text.