Henk H. Jelsma

Person

Spring, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Slider compensated flexible shaft drilling system
- Patent number 11,193,332
- Issue date Dec 7, 2021
- Schlumberger Technology Corporation
- Henk Jelsma
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for subsea wellhead encapsulation
- Patent number 8,789,607
- Issue date Jul 29, 2014
- Henk H. Jelsma
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for high pressure radial pulsed jetting of lat...
- Patent number 8,770,316
- Issue date Jul 8, 2014
- Radial Drilling Services, Inc.
- Henk H. Jelsma
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for single run cutting of well casing and form...
- Patent number 8,590,618
- Issue date Nov 26, 2013
- Radial Drilling Services, Inc.
- Henk H. Jelsma
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for single-run formation of multiple lateral p...
- Patent number 7,441,595
- Issue date Oct 28, 2008
- Henk H. Jelsma
- E21 - EARTH DRILLING MINING
Information Patent Grant
Fluid injection stimulated heavy oil or mineral production system
- Patent number 7,422,059
- Issue date Sep 9, 2008
- Henk H. Jelsma
- E21 - EARTH DRILLING MINING
Information Patent Grant
Flexible centralizer
- Patent number 4,938,299
- Issue date Jul 3, 1990
- Baroid Technology, Inc.
- Henk H. Jelsma
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for setting and retrieving a deflection tool
- Patent number 4,928,767
- Issue date May 29, 1990
- Baroid Technology, Inc.
- Henk H. Jelsma
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for drilling a curved borehole
- Patent number 4,880,067
- Issue date Nov 14, 1989
- Baroid Technology, Inc.
- Henk H. Jelsma
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
SLIDER COMPENSATED FLEXIBLE SHAFT DRILLING SYSTEM
- Publication number 20200087988
- Publication date Mar 19, 2020
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Henk Jelsma
- E21 - EARTH DRILLING MINING
Information Patent Application
MULTIDIRECTIONAL WELLBORE PENETRATION SYSTEM AND METHODS OF USE
- Publication number 20140008129
- Publication date Jan 9, 2014
- Henk H. Jelsma
- E21 - EARTH DRILLING MINING
Information Patent Application
Method and apparatus for subsea wellhead encapsulation
- Publication number 20130008665
- Publication date Jan 10, 2013
- Henk H. Jelsma
- E21 - EARTH DRILLING MINING
Information Patent Application
Method and apparatus for single run cutting of well casing and form...
- Publication number 20110247815
- Publication date Oct 13, 2011
- Henk H. Jelsma
- E21 - EARTH DRILLING MINING
Information Patent Application
Method and apparatus for high pressure radial pulsed jetting of lat...
- Publication number 20090288884
- Publication date Nov 26, 2009
- Henk H. Jelsma
- E21 - EARTH DRILLING MINING
Information Patent Application
Method and apparatus for single-run formation of multiple lateral p...
- Publication number 20070181308
- Publication date Aug 9, 2007
- Henk H. Jelsma
- E21 - EARTH DRILLING MINING
Information Patent Application
Fluid injection stimulated heavy oil or mineral production system
- Publication number 20070107902
- Publication date May 17, 2007
- Henk H. Jelsma
- E21 - EARTH DRILLING MINING
Information Patent Application
Steam energized heavy oil production system
- Publication number 20070095530
- Publication date May 3, 2007
- Henk H. Jelsma
- E21 - EARTH DRILLING MINING

Henk H. Jelsma

Person

Patents Grantslast 30 patents

Slider compensated flexible shaft drilling system

Method and apparatus for subsea wellhead encapsulation

Method and apparatus for high pressure radial pulsed jetting of lat...

Method and apparatus for single run cutting of well casing and form...

Method and apparatus for single-run formation of multiple lateral p...

Fluid injection stimulated heavy oil or mineral production system

Flexible centralizer

Method and apparatus for setting and retrieving a deflection tool

Apparatus for drilling a curved borehole

Patents Applicationslast 30 patents

SLIDER COMPENSATED FLEXIBLE SHAFT DRILLING SYSTEM

MULTIDIRECTIONAL WELLBORE PENETRATION SYSTEM AND METHODS OF USE

Method and apparatus for subsea wellhead encapsulation

Method and apparatus for single run cutting of well casing and form...

Method and apparatus for high pressure radial pulsed jetting of lat...

Method and apparatus for single-run formation of multiple lateral p...

Fluid injection stimulated heavy oil or mineral production system

Steam energized heavy oil production system