PATENT CLAIM ANALYSIS

Application Number: 16056596
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2018-11
Patent Classification: ["702", "011000"]

Abstract:
Methods and systems for determining permeability, as a function of pore pressure, and porosity of a subsurface formation. The method includes positioning a sample in a sample assembly comprising of a gas and a pressure gauge, inside a pressure vessel comprising gas or liquid and a pressure gauge, measuring a first gas pressure, p i , of the sample inside the pressure vessel, applying a second gas pressure, p o , to the pressure vessel, the second gas pressure being greater than the first gas pressure, measuring a third gas pressure, p, at time, t, at location, x, from the inlet of sample inside the pressure vessel, determining a total gas mass per unit volume of the subsurface formation, m, and determining the permeability, k, of the subsurface formation as a function of pore pressure based at least in part on the first gas pressure, the second pressure, the third gas pressure, and the gas density, with a single test run.

Claim (Index 1):
An apparatus for determining gas permeability of a subsurface formation, comprising:\n a first sleeve having a length, a diameter, a first open end, and a second open end; a first end piece adapted to be inserted into the first open end and a second end piece adapted to be inserted into the second open end of the first sleeve; a first hole formed through the first sleeve and into a body of a sample of the subsurface formation housed in the first sleeve; a half sleeve disposed on the first sleeve, the half sleeve having a second hole corresponding to the first hole on the first sleeve; a tubing comprising a pressure gauge, the tubing inserted through the first hole, the second hole, and into the body of the sample; an anchoring device for securing the tubing to the first sleeve and half sleeve, thereby forming a sample assembly; and a pressure vessel for receiving the sample assembly, the pressure vessel comprising at least two ports connecting the sample to at least one pump with at least one pressure gauge, at least one port for applying a confining pressure, and at least one port for measuring pressure located at a known location along the sample.

Metadata:
- Claim Count in Document: 18.0
- Percentile: 96.0
- Lexical Diversity: 2.79104
- Patent Class: 702.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15378305', '15151779', '15673996', '13053875', '12861485']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.2146044850336483
- 35 USC 102 Novelty (BERT): 0.5638148289152937
- Combined Prediction Score: 0.2495255194218128
- Mean Citation Score: 273.81863
- Max Citation Score: 479.63556
- Similarity Product: 361.4427523202205

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test