This inventor holds 3 USPTO granted patents and 1 published patent application. Top assignees: Conocophillips Company, Other. Active years: 2002-2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Littleton, CO (US) (2002)
- Houston, TX (US) (2024)
Company Filing History:

Years Active: 2002-2026
Title: David D Cramer: Innovator in Hydraulic Integrity Analysis
Introduction
David D Cramer is an accomplished inventor based in Houston, TX (US). He has made significant contributions to the field of hydraulic integrity analysis, holding a total of 3 patents. His work focuses on improving stimulation, completion, cementing, and drilling practices in the oil and gas industry.
Latest Patents
One of his latest patents involves a process for hydraulic integrity analysis. This economical method assesses cement sheath integrity, perforation cluster spacing, and frac plug integrity for every frac stage. The process analyzes wellbore pressure responses occurring at key segments of the wireline pump-down and perforating operation. It correlates results among multiple frac stages and wells in a field or play. A special requirement for this process is that the frac ball is inserted in the frac plug and pumped to seat prior to performing perforating operations. Additionally, a complementary benefit of this process is the ability to selectively establish injectivity in the most distant perforation cluster. This can be used to establish inhibited HCl acid coverage across all perforation intervals for uniform reduction in near-wellbore tortuosity.
Career Highlights
Throughout his career, David D Cramer has worked with notable companies, including ConocoPhillips. His expertise in hydraulic integrity analysis has positioned him as a key figure in the industry, contributing to advancements in drilling and completion techniques.
Collaborations
David has collaborated with professionals such as Donald L Purvis and David D Smith, further enhancing his contributions to the field.
Conclusion
David D Cramer is a notable inventor whose work in hydraulic integrity analysis has the potential to transform practices in the oil and gas industry. His innovative approaches continue to pave the way for improvements in drilling and completion methodologies.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile