What are the reasons to have directional drilling?

Directional drilling increases the efficiency of oil and gas extraction, and can also lessen the environmental impact of drilling. Although directional drilling has been used since the 1920s, modern technological improvements to the technique have increased its accuracy and safety.

When did directional drilling start?

The Beginning Horizontal directional drilling is an idea Cherrington first conjured up in the early 1960s when he was working for a utility installation company in Los Angeles. While out on a job, he witnessed another company doing some work nearby, using a hand-held air drill for a gas line installation.

What is directional drilling and its application?

Directional drilling is defined as the practice of controlling the direction and deviation of a wellbore to a predetermined underground target or location. This section describes why directional drilling is required, the sort of well paths that are used, and the tools and methods employed to drill those wells.

When was horizontal directional drilling invented?

The first patent for a horizontal drilling technique was issued in 1891. The main application was for dental work but the applicant noted the same techniques could be used for heavy-duty engineering. The first true horizontal oil well was drilled in Texas in 1929. Another one was drilled in Pennsylvania in 1944.

What do directional drillers do?

A directional driller operates machinery in the oil and gas industry to drill wells at multiple angles rather than just vertically. The objective is to drill a well sideways and horizontally to access different oil sources.

Who started directional drilling?

In 1934, H. John Eastman and Roman W. Hines of Long Beach, California, became pioneers in directional drilling when they and George Failing of Enid, Oklahoma, saved the Conroe, Texas, oil field. Failing had recently patented a portable drilling truck.

Who created directional drilling?

The method, an outgrowth of the oil well drilling technology, was reportedly first developed in the early 1970s by Titan Construction, of Sacramento, California.

What is directional well drilling?

While the technology has improved over the years, the concept of directional drilling remains the same: drilling wells at multiple angles, not just vertically, to better reach and produce oil and gas reserves. Many times, a non-vertical well is drilled by simply pointing the drill in the direction it needs to drill.

What are the three major roles of drilling fluid?

Drilling fluids serve many functions: controlling formation pressures, removing cuttings from the wellbore, sealing permeable formations encoun-tered while drilling, cooling and lubricating the bit, transmitting hydraulic energy to downhole tools and the bit and, perhaps most important, maintaining wellbore stability …

What is the principle of drilling?

Working Principle of Drilling Machine: When the power is given to the motor, the spindle rotates, and thereby the stepped pulley attached to it also rotates. On the other end, one more stepped pulley is attached and that is inverted to increase or decrease the speed of the rotational motion.

What is the history of directional drilling?

The practice of directional drilling has been used since the 1920s throughout the oil and gas industry. In its early years, directional drilling involved using the same basic equipment as vertical wells, except the drilling itself was done at a non-vertical angle.

What is angledirectional drilling?

Directional drilling is a drilling technique in which a well is bored at multiple angles.

What are the advantages of directional drilling?

Directional drilling allows access to areas where a vertical approach would not be possible, such as deposits that are below a body of water, or underneath a community. Because multiple wellheads can be grouped at one central location, directional drilling can also be more efficient, and cause less surface disturbance of the environment.

What are the different types of drilling techniques?

It can be broken down into four main groups: oilfield directional drilling, utility installation directional drilling (horizontal directional drilling), directional boring, and surface in seam (SIS), which horizontally intersects a vertical well target to extract coal bed methane .