Drillpipe is seamless steel pipe made up in the drill string and it is the major component of the entire drillstring. Typically, 90% – 95% of the total length is drill pipe. Thread connection of drill pipe is called “Tool Joint”. One end of drill pipe has a female end which is named as “Box” (see Figure 1).
Figure 1 – Box End of Tool Joint
Crude oil prices are impacted by supply and demand in the marketplace. There are many things that cause supply and demand to go up or down. Here are the main factors that impact crude oil prices.
Basic Demand
Oil will go up in price if there’s some factor that impacts the price. This could be global instability, a disruption in supply due to disasters, and so on. If there’s less of a demand for crude oil due to oversupply in the marketplace, the demand for crude oil will go down.
In the future the oil and gas industry faces numerous challenges. There’s have been some large spills and more environmental concerns in the oil and gas industry recently such as the large BP oil spill in the Gulf of Mexico and other concerns about how we deal with oil and gas in our environment. There are several things that threaten the future of these industries.
Directional drilling is an advance drilling technique which can deviate wellbore to the planned trajectory in order to reach the reservoir targets. Nowadays, directional drilling is widely used around the world because it has several advantages over a normal vertical well. Oil and gas reservoir shapes has the lateral length more than vertical length so the directional drilling will have more opportunities to reach potential sands. Ultimately, hydrocarbon reserves can be extracted with the directional wells. The applications of directional drilling are as follows:
Sidetrack is the process to drill a secondary well from an existing wellbore. Directional drilling technique is applied to successfully side track. There are advantages of sidetracking well as bypassing fish, kicking off from cement plug, extend of the producing zones, etc.
A drill pipe float valve is a check valve installed in the drill stem that allows mud to be pumped down but prevents flow back up. There are two types of float valves which are flapper type and plunger type.
The following VDO will demonstrate you the mechanism of each type of drilling float valve.
