LandOfFree - US Patents - Listing for Boring or penetrating the earth,With signaling, indicating, testing or measuring

Boring or penetrating the earth – With signaling – indicating – testing or measuring

Method and apparatus for well bore construction

Boring or penetrating the earth – With signaling – indicating – testing or measuring

Method and apparatus of assessing down-hole drilling conditions

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Measuring or indicating drilling fluid rate of flow

Method and apparatus utilizing NMR measurements to gather...

Boring or penetrating the earth – With signaling – indicating – testing or measuring

Method and composition for reducing torque in downhole drilling

Boring or penetrating the earth – With signaling – indicating – testing or measuring

Method and device

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Indicating – testing or measuring a condition of the formation

Method and device for in-situ determination of rheological prope

Boring or penetrating the earth – With signaling – indicating – testing or measuring

Method and device for percussion earth drilling

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Tool position direction or inclination measuring or...

Method and device for rotary well drilling

Boring or penetrating the earth – With signaling – indicating – testing or measuring

Method and equipment for drilling wells

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Tool position direction or inclination measuring or...

Method and means for drilling in rocks

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Tool position direction or inclination measuring or...

Method and rock drilling apparatus for controlling rock...

Boring or penetrating the earth – With signaling – indicating – testing or measuring

Method and system for displacing drilling fluid from a drill str

Boring or penetrating the earth – With signaling – indicating – testing or measuring

Method and system for measuring data in a fluid...

Boring or penetrating the earth – With signaling – indicating – testing or measuring

Method and system for testing a partially formed hydrocarbon...

Boring or penetrating the earth – With signaling – indicating – testing or measuring

Method and system for the early detection of the jamming of a co

Boring or penetrating the earth – With signaling – indicating – testing or measuring

Method for classifying data measured during drilling operations

Boring or penetrating the earth – With signaling – indicating – testing or measuring

Method for classifying data measured during drilling operations

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Measuring or indicating drilling fluid rate of flow

Method for controlling entry of a drillstem into a wellbore to m

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Measuring or indicating drilling fluid rate of flow

Method for detecting changes in rate of discharge of fluid from