Unity

Unity may refer to:

Education

Music

Media and entertainment

Kevin Hart

Kevin Darnell Hart (born July 6, 1979) is an American actor, comedian, writer, and producer. Born and raised in Philadelphia, Pennsylvania, Hart began his career by winning several amateur comedy competitions at clubs throughout New England, culminating in his first real break in 2000 when he was cast by Judd Apatow for a recurring role on the TV series Undeclared. The series lasted only one season, but he soon landed other roles in movies like Paper Soldiers (2002), Scary Movie 3 (2003), Soul Plane (2004), In the Mix (2005) and Little Fockers (2010).

Hart's comedic reputation continued to grow with the release of his first stand-up album I'm a Grown Little Man (2008), and performances in the films Think Like a Man (2012), Grudge Match (2013), Ride Along (2014), About Last Night (2014) and Get Hard (2015). He also released two more comedy albums, Seriously Funny in 2010 and Laugh at My Pain in 2011. He currently stars as himself in the lead role of Real Husbands of Hollywood.

Early life

Directional boring

Directional boring, commonly called horizontal directional drilling or HDD, is a steerable trenchless method of installing underground pipe, conduit, or cable in a shallow arc along a prescribed bore path by using a surface-launched drilling rig, with minimal impact on the surrounding area. Directional boring is used when trenching or excavating is not practical. It is suitable for a variety of soil conditions and jobs including road, landscape and river crossings. Installation lengths up to 2000 m have been completed, and diameters up to 1200 mm have been installed in shorter runs. Pipe can be made of materials such as PVC, polyethylene, polypropylene, Ductile iron, and steel as long as it can be pulled through the drilled hole. Directional boring is not practical if there are voids in the rock or incomplete layers of rock. The best material is solid rock or sedimentary material. Soils with cobble stone are not recommended. There are different types of heads used in the pilot-hole process, and they depend on the geological material.

Directional drilling

Directional drilling (or slant drilling) is the practice of drilling non-vertical wells. It can be broken down into three 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.

History

Many prerequisites enabled this suite of technologies to become productive. Probably, the first requirement was the realization that oil wells, or water wells, are not necessarily vertical. This realization was quite slow, and did not really grasp the attention of the oil industry until the late 1920s when there were several lawsuits alleging that wells drilled from a rig on one property had crossed the boundary and were penetrating a reservoir on an adjacent property. Initially, proxy evidence such as production changes in other wells was accepted, but such cases fueled the development of small diameter tools capable of surveying wells during drilling. Horizontal directional drill rigs are developing towards large-scale, micro-miniaturization, mechanical automation, hard stratum working, exceeding length and depth oriented monitored drilling.